HomeMy WebLinkAbout09-17-2024 Agenda (2)Planning Commission Meeting
September 17, 2024 - 6:30 P M
City Hall Council Chambers
A GE NDA
I .P UB L I C PART I C IPAT IO N
A .P ublic P articipation I nformation
The City of A uburn P lanning Commission Meeting scheduled for Tuesday, S eptember
17, 2024, at 6:30 p.m., will be held in-person and virtually. To attend the meeting
virtually, please click one of the links below, or call into the meeting at one of the phone
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I I .C AL L T O O RD E R
A .RO L L C AL L/E S TAB L I S HM E NT O F Q UO RUM
B .P L E D G E O F AL L E G I ANC E
I I I .P UB L I C C O M M E NT
Comment from the audience on any proposal for action by the Commission. I f the comment
is related to an action subsequently listed here as a public hearing, the comment should be
provided at the time of the public hearing.
I V.AP P RO VAL O F M INUT E S
A .J uly 16, 2024 Minutes from the P lanning Commission Meeting
V.I NT RO D UC T I O N
A .P resentation Overview (Teague)
B rief overview of upcoming Element Presentations and Public Hearing schedule.
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V I .O T HE R B US I NE S S
A .S ewer S ystems P lan (Elwell)
P lanning Commission deliberation and action on the proposed changes to the Sewer
S ystem P lan, which is incorporated by reference in the Utilities E lement.
B .P arks and Recreation P RO S Plan (Gouk)
S taff presentation to the P R O S Plan.
V I I .C O M M UNIT Y D E V E L O P M E NT RE P O RT
V I I I .AD J O URNM E NT
The City of Auburn Planning Commission is a seven member advisory body that provides
recommendations to the Auburn City Council on the preparation of and amendments to land
use plans and related codes such as zoning. Planning Commissioners are appointed by the
Mayor and confirmed by the City Council.
Actions taken by the Planning Commission, other than approvals or amendments to the
Planning Commission Rules of Procedure, are not final decisions; they are in the form of
recommendations to the city council which must ultimately make the final decision.
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AGENDA BILL APPROVAL FORM
Agenda Subject:
July 16, 2024 Minutes from the Planning Commission Meeting
Date:
August 21, 2024
Department:
Community Development
Attachments:
July 16, 2024 Draft Minutes
Budget Impact:
Current Budget: $0
Proposed Revision: $0
Revised Budget: $0
Administrativ e Recommendation:
Background for Motion:
Background Summary:
Rev iewed by Council Committees:
Councilmember:Staff:Alexandria Teague
Meeting Date:September 17, 2024 Item Number:
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AGENDA BILL APPROVAL FORM
Agenda Subject:
Presentation Overview (Teague)
Date:
August 28, 2024
Department:
Community Development
Attachments:
Planning Commission Memorandum
Budget Impact:
Current Budget: $0
Proposed Revision: $0
Revised Budget: $0
Administrativ e Recommendation:
Background for Motion:
Background Summary:
See attached Memorandum
Rev iewed by Council Committees:
Councilmember:Staff:Alexandria Teague
Meeting Date:September 17, 2024 Item Number:
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Memorandum
To: Judi Roland, Chair, Planning Commission
Planning Commission Members
From: Alexandria Teague, Planning Services Manager, Comm. Dev. Dept
Date: September 4, 2024
Re: Special Planning Commission Meeting – 9/17: 2024 Comprehensive Plan - Planning
Commission
Each city and county in Washington state is required to conduct a periodic update of its
comprehensive plan and development regulations per RCW 36.70A.130 (The Growth
Management Act or GMA). In general, the purpose is to ensure consistency with the Puget
Sound Regional Council Vision 2050, the Countywide Planning Policies (for Auburn this means
both Pierce and King County), any changes in state laws over the intervening time, and to
respond to changing conditions within the local community.
Tonight, a staff presentation on the Parks and Recreation Pros Plan will be conducted. Planning
Commission will also deliberate and take action on acceptance of the Sewer Systems Plan,
which is incorporated by reference in the Utilities Element. These plans are indicated as
“Package 2” plans. Future Planning Commission deliberation and action (recommendation to
City Council) on remaining Elements and Systems Plans, indicated as “Package 2”, is expected
at the October 23, 2024, meeting.
This meeting is open to the public and has been advertised appropriately as a regular meeting.
The table below illustrates current, past, and upcoming Planning Commission meetings for the
Comprehensive Plan update, as well as subject.
Subject Public
Meeting
Public
Hearing
Deliberation and
Action
Planning Commission – Package 1
Land Use July 16
Housing July 16
Historic Preservation July 16
Economic Development July 16
Climate July 16
Planning Commission – Package 2
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Sewer Plan September 17
Stormwater Plan
Transportation
Parks and Open Space Element
Parks PROS Plan September 17 October 23 October 23
Stormwater Plan
Capital Facilities October 23
Water System Plan October 23 October 23
Utilities Element October 23
Planning Commission Action – Recommendation for Adoption to City Council
Package 1
Package 2 October 23
For reference, the current adopted Comprehensive Plan Elements can be found here.
Feel free to contact Alexandria Teague, Planning Services Manager, at
ateague@auburnwa.gov or 253-931-3003 with any questions.
Included Attachments:
Attachment A – Sewer System Plan
Attachment B – Parks and Recreation PROS Plan
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AGENDA BILL APPROVAL FORM
Agenda Subject:
Sewer Systems Plan (Elwell)
Date:
August 28, 2024
Department:
Community Development
Attachments:
Sewer Sys tem Plan - 1
Sewer Sys tem Plan - 2
Sewer Sys tem Plan - 3
Sewer Sys tem Plan - 4
System Sewer Plan - 5
System Sewer Plan - 6
System Sewer Plan - 7
System Sewer Plan - 8
System Sewer Plan - 9
System Sewer Plan - 10
System Sewer Plan - 11
Sewer Sys tem Presentation
Budget Impact:
Current Budget: $0
Proposed Revision: $0
Revised Budget: $0
Administrativ e Recommendation:
Background for Motion:
Background Summary:
See Attachments
Rev iewed by Council Committees:
Councilmember:Staff:Robert Elwell
Meeting Date:September 17, 2024 Item Number:
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2024 Comprehensive Sewer Plan
DRAFT / September 2024
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1200 FIFTH AVENUE, SUITE 900 ▪ SEATTLE, WASHINGTON 98101 ▪ P 206-684-6532
2024 Comprehensive Sewer Plan
DRAFT / September 2024
This document is released for the purpose of information exchange review and planning only under the
authority of Edward A. Wicklein, September 6, 2024, State of Washington PE No. 43049.
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TABLE OF CONTENTS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN i
pw://Carollo/WA/Auburn/201005-000000/03 Reports and Studies/02 Deliverables/CSP 2024/_FrontEnd
Contents
EXECUTIVE SUMMARY
ES.1 Introduction ES-1
ES.2 System Goals for Long Term ES-2
ES.3 Sewer Utility Evaluation ES-2
ES.4 Capital Improvement and Financial Plan ES-3
ES.5 System Administration Plan ES-3
CHAPTER 1 INTRODUCTION AND BACKGROUND
1.1 Purpose and Objectives 1-1
1.2 Document Organization 1-2
1.3 Background 1-3
1.3.1 Previous Auburn Comprehensive Sewer Plans 1-3
1.3.2 City Comprehensive Plan 1-3
1.3.3 Sanitary Sewer Service Area 1-3
1.3.4 Existing Land Use Plans 1-3
1.3.5 Wastewater Treatment 1-5
1.3.6 City of Auburn Water Resources Protection Report 1-8
1.3.7 City of Auburn Water Conservation 1-8
1.4 Neighboring Sewer Utilities 1-8
1.4.1 Soos Creek Water and Sewer District and City of Kent 1-8
1.4.2 City of Pacific 1-8
1.4.3 Muckleshoot Indian Tribe Reservation 1-9
1.4.4 Lakehaven Water and Sewer District 1-9
1.4.5 City of Algona 1-9
1.4.6 City of Bonney Lake 1-10
1.4.7 King County 1-10
CHAPTER 2 WASTEWATER SYSTEM GOALS AND POLICIES
2.1 City Comprehensive Plan Consistency 2-1
2.2 Business Practices/Asset Management 2-1
2.3 Sewer Comprehensive Plan Policies, Standards, and Guidelines 2-2
2.3.1 Service Area 2-2
2.3.2 System Planning 2-3
2.3.3 Operations and Maintenance 2-4
2.3.4 Environmental Stewardship 2-4
2.3.5 System Performance and Reliability 2-5
2.3.6 Fiscal Responsibility 2-7
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TABLE OF CONTENTS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN ii
CHAPTER 3 PLANNING CONSIDERATIONS
3.1 Planning Area 3-1
3.2 Basis of Planning 3-1
3.3 Land Use 3-2
3.3.1 Description of Land Use Designations 3-4
3.4 Sewer System Flow Components 3-5
3.4.1 Dry Weather Flow Components 3-6
3.4.2 Wet Weather Flow Components 3-6
3.5 Average Dry Weather Flow 3-7
3.5.1 Average Dry Weather Flow Development 3-7
3.6 Wet Weather Flow 3-8
CHAPTER 4 DESCRIPTION OF EXISTING SYSTEM
4.1 Overview 4-1
4.1.1 Valley Sewer Basin 4-1
4.1.2 West Hill Sewer Basin 4-1
4.1.3 Lea Hill Sewer Basin 4-2
4.1.4 Auburn Way South Sewer Basin 4-2
4.1.5 South Hill Sewer Basin 4-2
4.2 Sanitary Sewer Facilities 4-3
4.2.1 Critical Infrastructure 4-6
4.2.2 Pump Stations 4-6
4.2.3 Gravity and Force Main Collection System 4-7
4.2.4 Side Sewer Laterals 4-7
4.2.5 River Crossings 4-7
4.3 King County Conveyance 4-11
4.4 Infiltration and Inflow 4-11
4.5 Odor Control and Corrosion 4-12
4.6 Industrial Waste Discharges 4-12
4.7 Water Reclamation and Reuse 4-14
4.7.1 Regulatory Framework 4-14
4.7.2 Potential Reclaimed Water Sources 4-15
4.7.3 Potential Reclaimed Water Users 4-16
4.7.4 Reclaimed Water Summary 4-16
CHAPTER 5 WASTEWATER SYSTEM ANALYSIS
5.1 Introduction 5-1
5.2 Design and Performance Criteria 5-1
5.2.1 Design Storm 5-2
5.2.2 Climate Risk 5-3
5.2.3 Conveyance System 5-3
5.2.4 Lift Stations and Force Mains 5-4
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TABLE OF CONTENTS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN iii
5.3 Future Conditions Flow Projection 5-5
5.3.1 Future Conditions Average Dry Weather Flow Development 5-5
5.3.2 Future Conditions Wet Weather Flow Assumptions 5-5
5.4 Gravity Collection System Deficiencies 5-9
5.4.1 Key Causes of Deficiencies 5-9
5.4.2 Existing System Potential Deficiencies 5-9
5.4.3 2044 Potential System Deficiencies 5-9
5.5 Lift Station and Force Main Evaluation 5-13
5.6 Inflow and Infiltration Evaluation 5-14
5.7 Remaining Useful Life 5-17
5.8 Recommendations 5-19
5.8.1 Asset Inventory, System Inspections, and Remaining Useful Life 5-19
5.8.2 Capacity Evaluation Recommendations 5-19
5.8.3 Future Population Growth 5-19
5.8.4 Inflow and Infiltration Evaluation Recommendations 5-22
CHAPTER 6 MAINTENANCE AND OPERATIONS
6.1 Utility Responsibility and Authority 6-1
6.1.1 Organizational Structure 6-1
6.1.2 Staffing Level 6-2
6.1.3 Level of Service 6-3
6.1.4 Operator Training and Education 6-3
6.2 Routine Operations 6-3
6.2.1 Pump Station Maintenance 6-3
6.2.2 Collection System Maintenance 6-6
6.2.3 Field Operations 6-7
6.3 Fats, Oils, and Grease Reduction Program 6-7
6.4 Non-Routine and Emergency Operations 6-8
6.4.1 Customer Service Requests 6-8
6.4.2 Emergency Response Program 6-9
6.5 Communications, Data Collection, and Record-Keeping 6-10
6.5.1 Telemetry and Pump Station Controls 6-10
6.5.2 Data Collection and Record-Keeping 6-10
6.6 Existing Staffing Requirements 6-12
6.7 Potential Improvement Opportunities and Capital Needs 6-13
CHAPTER 7 CAPITAL IMPROVEMENT PLAN
7.1 Capital Improvement Plan 7-1
7.1.1 Project Priority 7-2
7.1.2 Project Cost 7-2
7.1.3 Project Summary 7-2
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TABLE OF CONTENTS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN iv
7.2 Capital Improvement Projects 7-2
7.2.1 Summary Table 7-2
7.2.2 Project Descriptions 7-4
CHAPTER 8 FINANCIAL PLAN
8.1 Introduction 8-1
8.2 Past Financial Performance 8-1
8.2.1 Comparative Financial Statements 8-1
8.3 Financial Plan 8-5
8.3.1 Capital Funding Plan 8-6
8.4 Available Funding Assistance and Financing Resources 8-8
8.4.1 City Resources 8-8
8.4.2 Outside Resources 8-9
8.4.3 Capital Financing Strategy 8-10
8.5 Financial Forecast 8-11
8.5.1 Current Financial Structure 8-11
8.6 Current and Projected Rates 8-16
8.6.1 Current Rates 8-16
8.6.2 Projected Rates 8-16
8.7 Affordability 8-18
8.8 Conclusion 8-18
Appendices
APPENDIX A INTER-LOCAL AGREEMENTS AND OUTSIDE AGENCY CORRESPONDENCE
APPENDIX B HYDRAULIC MODEL UPDATE, CALIBRATION, AND CAPACITY ANALYSIS
APPENDIX C PUMP STATION DATA SUMMARY
APPENDIX D SEPA CHECKLIST
APPENDIX E RECLAIMED WATER CHECKLIST
Tables
Table 3.1 Land Use Categories 3-2
Table 4.1 City of Auburn Sewer Pump Station Inventory 4-6
Table 4.2 City of Auburn Industrial Waste Discharge Permits 4-12
Table 5.1 Summary of Potential Future Characteristics for the Design Storm, 2030 - 2059 5-3
Table 5.2 Summary of Potential Future Characteristics for the Design Storm, 2079 - 2099 5-3
Table 5.3 Flow Projections Summary 5-5
Table 5.4 Lift Station Analysis 5-13
Table 5.5 I/I Summary by Flow Monitoring Basin for the Design Storm 5-15
Table 5.6 Useful Life of Pipes 5-17
Table 5.7 Remaining Useful Life 5-18
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TABLE OF CONTENTS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN v
Table 5.8 Capacity Deficiencies 5-21
Table 6.1 Sewer Utility M&O Field Personnel 6-2
Table 6.2 Sewer System Maintenance and Operation Task Summary 6-12
Table 7.1 Annual Project Cost Summary for 6-Year and 20-Year CIP 7-3
Table 7.2 Project Descriptions 7-4
Table 8.1 Summary of Historical Fund Resources and Uses Arising from Cash Transactions 8-2
Table 8.2 Summary of Historical Comparative Statements of Net Position 8-4
Table 8.3 10-Year and 20-Year CIPs 8-6
Table 8.4 10-Year CIP (Escalated $) 8-7
Table 8.5 10-Year and 20-Year Capital Financing Strategy 8-10
Table 8.6 10-Year Financial Forecast 8-15
Table 8.7 Ending Cash Balance Summary 8-15
Table 8.8 Existing Schedule of Rates 8-16
Table 8.9 Proposed Schedule of Rates 8-17
Table 8.10 Community Affordability Test 8-18
Figures
Figure 1.1 Vicinity 1-6
Figure 1.2 Plan Study Area 1-7
Figure 3.1 City of Auburn Land Use Designations 3-3
Figure 4.1 Sewer Service Basins 4-4
Figure 4.2 Existing Wastewater Conveyance System 4-5
Figure 4.3 Critical Sewers 4-9
Figure 4.4 City of Auburn Collection System Summary Statistics 4-10
Figure 5.1 20 Year Design Storm 5-2
Figure 5.2 Design and Performance HGL Criteria 5-4
Figure 5.3 TAZ Data 5-6
Figure 5.4 Future Contributing Areas 5-7
Figure 5.5 Existing and Future Sewer System 5-8
Figure 5.6 Existing System Deficiencies 5-10
Figure 5.7 2044 System Deficiencies 5-11
Figure 5.8 2044 Climate Change Design Storm System Deficiencies 5-12
Figure 5.9 Peak I/I Rate by Flow Monitoring Basin 5-16
Figure 5.10 Recommended Remediation Strategies 5-20
Figure 6.1 City of Auburn Public Works Department Organizational Chart 6-2
Figure 7.1 CIP Development Flow Chart 7-1
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ABBREVIATIONS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN vi
Abbreviations
ACC Auburn City Code
ADWF average dry weather flow
APWA American Public Works Association
BWF base wastewater flow
CCF per hundred cubic feet
CCTV closed-circuit television
CFP Capital Facilities Program
CIG Climate Impacts Group
CIP capital improvement program
City City of Auburn, Washington
CMMS computerized maintenance management system
CP concrete pipe
CSWD Criteria for Sewage Works Design
D diameter
d/D depth/diameter
DOC Department Operations Center
DOH Washington State Department of Health
DWF dry weather flow
Ecology Washington State Department of Ecology
Engineering Engineering Services Division
FOG fats, oils, and greases
FSE food service establishment
FTE full-time equivalent
G.O. general obligation
GIS geographic information system
gpad gallons per acre per day
gpm gallons per minute.
GWI groundwater infiltration
H&H hydrologic and hydraulic
HGL hydraulic grade line
I/I inflow and infiltration
LID Local Improvement District
LOS Level of Service
LWSD Lakehaven Water and Sewer District
M million
M&O Maintenance and Operation
MBR membrane bioreactor
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ABBREVIATIONS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN vii
mgd million gallons per day
MH manhole
MIT Muckleshoot Indian Tribe
MWPAAC Metropolitan Water Pollution Abatement Advisory Committee
NASSCO National Association of Sewer Service Companies
NE northeast
NW northwest
PAA potential annexation area
PACP Pipeline Assessment and Certification Program
Plan Comprehensive Sewer Plan Update
PW Public Works
PWTF Public Works Trust Fund
PWWF peak wet weather flow
R&R repair and replacement
RCE Residential Customer Equivalents
RCW Revised Code of Washington
RDI rainfall derived infiltration
RUL remaining useful life
RWSP Regional Wastewater Services Plan
SCADA supervisory control and data acquisition
SCWSD Soos Creek Water and Sewer District
SDC system development charges
SE southeast
SOS Save Our Streets
SSO sanitary sewer overflow
SSSA Sanitary Sewer Service Area
SW southwest
TAZ traffic area zone
TM technical memorandum
ULID Utility Local Improvement District
Utility Sanitary Sewer Utility
VCP vitrified clay pipe
WAC Washington Administrative Code
WSDOT Washington State Department of Transportation
WWF wet weather flow
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EXECUTIVE SUMMARY SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN ES-1
EXECUTIVE SUMMARY
ES.1 Introduction
This Comprehensive Sewer Plan (Plan) for the City of Auburn, Washington (City) is an update to the
previous Plan, adopted in 2016. This Plan should be considered a General Sewer Plan under the authority
of Washington Administrative Code (WAC) Section 173-240-050. This Plan reflects changes in existing and
projected land use and population levels, extensions to the public sewer collection system, and
completion of sewer capital projects since the completion of the previous Plan.
Additionally, since the adoption of the previous Plan, both the City and King County have performed
extensive flow monitoring of the City’s collection system that, along with updated asset data, provides
valuable information for updating the hydrologic and hydraulic (H&H) model used for system capacity
assessment.
This Plan includes estimated periods that are intended to be used as a framework for future workload
planning and funding decisions, and within which future actions and decisions are anticipated to occur.
The purpose of the Plan is to guide the City with respect to future activities and improvements for the
Sanitary Sewer Utility (Utility). To fulfill this stated purpose, the following objectives were achieved:
Evaluation and updates to sewer policies to better reflect and integrate with overall City
Comprehensive Plan policies.
Plan for updating the comprehensive sanitary sewer system inventory, based on the City’s geographic
information system (GIS), that incorporates currently available infrastructure data into a digital
database that can be directly linked with the hydraulic model used for analyzing the system.
Hydraulic modeling analysis to evaluate existing system capacity.
Future population and development projections were used to evaluate future sewer capacity needs.
The Plan for sewer service extensions was refined, including where extensions will occur and how the
City will serve these areas.
Documentation of the City’s existing Maintenance and Operation (M&O) program, and evaluation of
existing Utility staffing and standard procedures.
Completed a financial analysis of the Utility, including a projection of cost to provide sewer service
and development of a funding strategy for identified goals.
Developed a capital improvement program (CIP) by sustainably meeting required customer service
needs, effectively managing risks, and minimizing the City’s costs of sewer asset ownership.
Prioritization of capital improvement projects to accommodate both 6- and 20-year funding
frameworks.
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EXECUTIVE SUMMARY SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN ES-2
ES.2 System Goals for Long Term
This Plan presents policies and standards related to system development, maintenance, funding, and
general guidelines for Sanitary Sewer Utility operation. These policies define limits and outline how the
wastewater collection system should be operated and maintained and are grouped within the following
goal statements:
Goal 1: Plan for sewer extensions and capacity upgrades to reflect the planning and growth
projections included in the City’s Comprehensive Plan, such that the public sewer system, when
constructed, will have adequate capacity to support all future planned development.
Goal 2: Plan for future service to all properties in the City within urban density areas.
Goal 3: Manage the extension of the public sewer system to minimize future costs to operate and
maintain.
Goal 4: Design, operate, and maintain the public sewer system in a manner that increases reliability
and efficiency, and demonstrates environmental stewardship.
Goal 5: Apply asset best management principles to the City’s sewer infrastructure.
Goal 6: Manage the sewer utility funds and resources in a professional manner in compliance with
applicable laws, regulations, and City financial policies, which requires ongoing monitoring of
revenues and expenses in order to make prudent business decisions and report to City officials, as
needed, regarding the status of utility operations.
ES.3 Sewer Utility Evaluation
The City customer base continues to increase through system growth by development, redevelopment,
and connection of on-site system properties to the system. With the additional customers served, some of
the City’s sewer infrastructure may reach its conveyance capacity. In addition, the installed sewer
infrastructure continues to age:
Hydraulic Modeling: The City hydraulic model was updated to reflect currently installed infrastructure.
Current sanitary loading was developed from flow monitor data collected through recent temporary
monitor programs, as well as long term sites. A total of 22 sites were used for modeling to develop
land used based flow factors, and dry and wet weather model calibration.
System Evaluation: The flow factors were used to develop a future flow projection based on a
combination of general population projects, anticipated land use changes to address City and State
requirements. The hydraulic model was used for evaluating current and figure capacity needs. In
addition, installed infrastructure age was evaluated relative to anticipated useful life expectancy.
Maintenance and operation: The current organization and common procedures associated with the
ongoing maintenance and operation of the City sewer utility system are reviewed. The primary
purpose being to establish a baseline understanding of the proactive and responsive maintenance
procedures performed by City staff. This baseline understanding is used herein to evaluate Sewer
Utility (Utility) staffing, data collection and computerized record-keeping needs, and other Utility
requirements to continue to meet the Utility’s goals.
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EXECUTIVE SUMMARY SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN ES-3
ES.4 Capital Improvement and Financial Plan
This Plan includes time frames, which represent the intended framework for future funding decisions and
within which future actions and decisions are intended to occur. However, these time frames are
estimates, and depending on factors involved in the processing of applications and project work, and
availability of funding, the timing may change. The framework does not represent actual commitments by
the City. Project identification is an ongoing effort requiring periodic evaluation.
The CIP list was developed based on incorporating the City’s Capital Facilities Plan (CFP), identification of
equipment limitations within the M&O group, and identification of areas of improvement. The CIP focuses
on addressing known problems in a manner identifying cost-effective solutions that incorporate the risks
associated with substandard facilities and the uncertainty inherent in engineering calculations/model
simulations. The CIP places emphasis on projects identified for implementation between 2025 and 2030,
which constitutes the 6-year planning period for utility capital funding requirements and staffing needs.
This period provides a realistic outer limit for accurately forecasting the annual cycle of utility projects and
priorities. This Plan also includes a 20-year CIP that examines long-term capital requirements, such as
the replacement of infrastructure as it exceeds its useful life. All projects in the CIP are consistent with
the LOS.
For implementing the CIP and sustaining long term operation of the Utility, a financial program is outlined
that allows the City sewer utility to remain financially viable during the planning period. This financial
viability analysis considers the historical financial condition, current and identified future financial and
policy obligations, M&O needs, and the financial impacts of the capital projects identified in this Plan.
Furthermore, this chapter provides a review of the sewer utility’s current rate structure with respect to rate
adequacy and customer affordability. The results of this analysis indicate that at existing rate levels the
utility will be deficient beginning in 2028. To keep pace with expenses, the City has adopted a 7.50
percent rate increase in 2025. An annual rate increase is recommended for several years, as well as a
regular review and update the key underlying assumptions that compose the multi-year financial plan to
ensure that adequate revenues are collected to meet the City’s total financial obligations.
ES.5 System Administration Plan
In addition to the projects listed in the CIP, this Plan includes other tasks and activities that should be
priorities during this planning period. These include:
Renewal of the franchise agreement with King County which expires in 2027, and beginning
negotiation of an extension to the Sewage Disposal Agreement which expires in 2036.
The continued implementation of asset management principles including:
» Completing the inventory of sewer assets
» Verifying and updating asset data/information as part of normal maintenance activities.
» Integrating condition assessment information into the City’s CMMS as a tool for prioritizing
rehabilitation and replacement decisions
» For assets with poor condition scores, determining the consequences of failure to help assess
asset criticality.
» Use condition assessment studies included in the CIP to make long-term maintenance, upgrade,
rehabilitation, and replacement decisions for key assets.
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EXECUTIVE SUMMARY SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN ES-4
Proactively discouraging the discharge of substances detrimental to the sanitary sewer and
wastewater treatment system by:
» Enforcing the requirements to manage fats, oils, and grease (FOG) by restaurants and other
businesses likely to discharge FOG into the sewer system.
» Educating residents about the negative effects of discharging FOG on both private and public
portions of the sanitary sewer system.
» Educating residents about the negative effects of discharging cleaning wipes, pharmaceuticals,
and other prohibited discharges to the sewer system, and promoting alternative disposal
methods.
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CHAPTER 1 - INTRODUCTION AND BACKGROUND SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-1
CHAPTER 1 INTRODUCTION AND BACKGROUND
This Comprehensive Sewer Plan (Plan) for the City of Auburn, Washington (City) is an update to the
previous Plan, adopted in 2016. This Plan should be considered a General Sewer Plan under the authority
of Washington Administrative Code (WAC) Section 173-240-050, and within this document,
Comprehensive Sewer Plan and General Sewer Plan should be considered synonymous. This Plan reflects
changes in existing and projected land use and population levels, extensions to the public sewer
collection system, and completion of sewer capital projects since the completion of the previous Plan.
Additionally, since the adoption of the previous Plan, both the City and King County have performed extensive
flow monitoring of the City’s collection system that, along with updated asset data, provides valuable
information for updating the hydrologic and hydraulic (H&H) model used for system capacity assessment.
This Plan includes estimated periods that are intended to be used as a framework for future workload
planning and funding decisions, and within which future actions and decisions are anticipated to occur.
These time lines are estimates and depending on factors including staff availability, available resources,
coordination with other City departments, and overall development activity, the actual timing of actions
described by this Plan may differ. The timing estimates for activities included in this Plan do not represent
actual commitments by the City.
This Plan meets the requirements of the Washington State Department of Ecology (Ecology) as set forth
in WAC Section 173-240-050. The Plan was submitted to Ecology; the Washington State Department
of Health (DOH); King and Pierce counties; the cities of Algona, Bonney Lake, Kent, and Pacific;
Lakehaven Water and Sewer District (LWSD); Soos Creek Water and Sewer District (SCWSD); and the
Muckleshoot Indian Tribe (MIT).
1.1 Purpose and Objectives
The purpose of the Plan is to guide the City with respect to future activities and improvements for the
Sanitary Sewer Utility (Utility). To fulfill this stated purpose, the following objectives were achieved:
Evaluation and updates to sewer policies to better reflect and integrate with overall City
Comprehensive Plan policies.
Plan for updating the comprehensive sanitary sewer system inventory, based on the City’s geographic
information system (GIS), that incorporates currently available infrastructure data into a digital
database that can be directly linked with the hydraulic model used for analyzing the system.
Hydraulic modeling analysis to evaluate existing system capacity.
Future population and development projections were used to evaluate future sewer capacity needs.
The Plan for sewer service extensions was refined, including where extensions will occur and how the
City will serve these areas.
Documentation of the City’s existing Maintenance and Operation (M&O) program, and evaluation of
existing Utility staffing and standard procedures.
Completed a financial analysis of the Utility, including a projection of cost to provide sewer service
and development of a funding strategy for identified goals.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-2
Developed a capital improvement program (CIP) by sustainably meeting required customer service
needs, effectively managing risks, and minimizing the City’s costs of sewer asset ownership.
Prioritization of capital improvement projects to accommodate both 6- and 20-year funding
frameworks.
1.2 Document Organization
This Plan is organized to focus on the actions that the Utility will take while implementing Plan
recommendations. Supporting documentation and background information is included in appendices
where appropriate. The Plan is organized into the following chapters:
Chapter 1 - Introduction and Background: Explains the need for updating previous sewer planning
documentation and outlines specific objectives of the Comprehensive Sewer Plan Update and
provides background information regarding the Utility and Sanitary Sewer Service Area (SSSA).
Chapter 2 - Wastewater System Goals and Policies: Specifies the utility’s goals and policies used to
develop capital improvements and future M&O activities.
Chapter 3 - Planning Considerations: Describes the factors used to project the future capacity needs
of the system.
Chapter 4 - Description of Existing System: Describes the existing conditions of the City’s sanitary
sewer system.
Chapter 5 - Wastewater System Analysis: Presents methodologies used to evaluate system capacity
and future sewer extensions.
Chapter 6 - Maintenance and Operations: Provides an overview of the organization and common
procedures associated with the ongoing M&O program and evaluates existing Utility staffing needs
based on established Level of Service (LOS) goals.
Chapter 7 - Capital Improvement Plan: Describes recommended capital improvement projects
including cost estimates.
Chapter 8 - Finance: Develops a funding plan that optimizes use of rates, systems development
charges, and other service fees based on projected Utility spending requirements and a review of
funding sources and City financial policies.
Appendix A - Inter-local Agreements and Outside Agency Correspondence: Provides copies of
inter-local agreements related to sanitary sewer conveyance and disposal.
Appendix B - Hydraulic Model Update, Calibration, and Capacity Analysis: Provides a detailed
review of the hydraulic modeling completed for near- and long-term land use modeling scenarios to
identify areas of capacity concern.
Appendix C - Pump Station Information: Provides detailed information related to the pump
stations (pump sizes, wet well size, etc.).
Appendix D - SEPA Compliance: Provides a letter documenting the “Determination of
Non-Significance.”
Appendix E – Reclaimed Water Checklist: A copy of the King County reclaimed water checklist from
the 2024 Water System Plan.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-3
1.3 Background
This section includes background information related to the development of the City’s current wastewater
collection and conveyance system. A description of the City SSSA is also included, along with information
on adjacent sewer utilities, which will facilitate an understanding of existing and potential collaboration
opportunities with other purveyors to enhance system reliability and/or reduce costs. Changes to land use
planning efforts affecting the City SSSA are also discussed.
The City of Auburn vicinity within the greater region is shown in Figure 1.1.
1.3.1 Previous Auburn Comprehensive Sewer Plans
The current wastewater planning effort supersedes previous plans prepared in 1968, 1982, 2001, 2009,
and 2016. This Plan builds upon concepts established in the five previous plans modifying, or updating
goals, policies, and analyses to account for present conditions.
1.3.2 City Comprehensive Plan
The City most recently revised its City Comprehensive Plan in June 2015. The City Comprehensive Plan
incorporates the Comprehensive Sewer Plan by reference. The City is in the process of updating the City
Plan for adoption in 2024.
1.3.3 Sanitary Sewer Service Area
The City SSSA has not changed significantly since the 2016 Comprehensive Sewer Plan. Service has been
extended to a small area of unincorporated King County located west of Algona. The current SSSA is
shown on Figure 1.2.
As of September 2023, the City serves 13,417 single-family residential customers within its SSSA.
Additionally, commercial customers (including non-single-family customers) equate to 19,980 Residential
Customer Equivalents (RCE) based on total water consumption records for commercial connections. The
City tracks total RCEs and reports to the County quarterly.
The City coordinates service at the boundary of its SSSA with nearby sewer utilities. When the City’s SSSA
extends beyond current corporate limits, the City requires a franchise to own, maintain, and manage the
wastewater facilities within King and Pierce counties’ rights-of-way. This coordination with other utilities
and King and Pierce counties is discussed in Section 1.4.
1.3.4 Existing Land Use Plans
Various land use plans govern development with the City SSSA; these plans are described in the following
sections.
1.3.4.1 King County Comprehensive Plan
Urban unincorporated areas of the City’s SSSA within King County are subject to the King County
Comprehensive Plan, as most recently updated and adopted in December 2022. This section highlights
portions of the King County document affecting policy direction for functional plans, such as this City of
Auburn Comprehensive Sewer Plan.
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In the 2022 King County Comprehensive Plan, policy F-255 states:
In the Urban Growth Area, all new development shall be served by public sewers unless:
a. Application of this policy to a proposal for a single-family residence on an individual lot would deny
all reasonable use of the property; or
b. Sewer service is not available for a proposed short subdivision of urban property in a timely or
reasonable manner as determined by the Utility Technical Review Committee. 1These on-site
systems shall be managed by one of the following entities, in order of preference:
i. The sewer utility whose service area encompasses the proposed short subdivision; or
ii. The provider most likely to serve the area; or;
iii. An Onsite Sewage System Maintainer certified by Public Health - Seattle & King County.
The onsite system shall meet all state and county approval requirements. The approved short subdivision
shall indicate how additional lots to satisfy the minimum density requirement of the zoning will be located
on the subject property in case sewers become available in the future. There shall be no further subdivision
of lots created under this policy unless served by public sewers.
In conjunction with policy F-255, policy F-256 states:
In the Urban Growth Area, King County and sewer utilities should jointly prioritize the replacement of
on-site systems that serve existing development with public sewers, based on the risk of potential failure.
King County and sewer utilities should analyze public funding options for such conversion and should
prepare conversion plans that will enable quick and cost-effective local response to health and pollution
problems that may occur when many on-site systems fail in an area.
Chapter 5 discusses potential sewer extensions within currently unsewered areas. The City’s SSSA currently
includes three areas of unincorporated King County, as shown on Figure 1.2.
1.3.4.2 Pierce County Comprehensive Plan
Urban unincorporated areas of the City’s SSSA within Pierce County are subject to the Pierce County
Comprehensive Plan, as most recently updated and adopted in July, 2023. Several goals and policies
included in the Pierce County document affect policy direction for functional plans, this City of Auburn
Comprehensive Sewer Plan Update such as:
GOAL U-2 - Provide urban level facilities and services only within the designated Urban Growth Areas
prior to or concurrent with development.
» U-2.1 - Encourage the provision of urban level services from cities or appropriate regional service
providers.
» U-2.3 - Preserve the rural way of life by not providing urban LOS’ within rural areas.
GOAL U-15 - Provide sanitary sewers within the urban area.
» U-15.6 - Recognize on-site septic systems within the Urban Growth Area are considered interim facilities.
Chapter 5 discusses potential sewer extensions within currently unsewered areas. The City’s SSSA currently
includes one area of unincorporated Pierce County, as shown on Figure 1.2.
1 The Utility Technical Review Committee (UTRC) is a King County Committee that reviews sewer and water plans and makes recommendations to the Council/Executive.
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CHAPTER 1 - INTRODUCTION AND BACKGROUND SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-5
1.3.5 Wastewater Treatment
The City is a component agency of the King County Wastewater Treatment Division. As such, its Sewer
Utility operates a collection system that discharges collected wastewater to King County facilities for
conveyance to King County's South Plant for treatment, outside of the service area to the North. The
South Plant operates under a permit from the Department of Ecology, and the County is required to
continually upgrade its treatment processes to ensure its effluent and other treatment byproducts meet
the most current environmental standards.
The City's agreements with King County can be found in Appendix A, and are active until 2036. It is
expected that negotiations for extending that agreement will occur during this planning period. Under the
current agreement, the City is obligated to deliver all of the sewage and industrial wastes collected or
received by the City, and Metro (King County) shall accept the sewage and industrial wastes delivered for
treatment. There is currently no limit on the quantity of wastewater delivered by the City to Metro (King
County).
1.3.5.1 King County Regional Wastewater Services Plan
In 2007, King County adopted a revised Regional Wastewater Services Plan (RWSP), which outlined
proposed wastewater conveyance improvements. Improvements that impact the City collection and
conveyance system included the following:
Stuck River Trunk: New gravity pipe constructed to convey flow away from the M Street Trunk to the
Lakeland Hills Trunk Line and eventually the Auburn West Interceptor.
Pacific Pump Station discharge: New pipe to convey flow north from the Pacific Pump Station to the
Auburn West Interceptor.
Auburn West Interceptor Parallel: New gravity pipe to replace or parallel an existing portion of the
Auburn West Interceptor between 15th Street SW and West Main Street.
The Stuck River Trunk was completed in 2013. The Pacific Pump Station discharge and Auburn West
Interceptor Parallel were completed in 2018.
Based on the completion of most of the projects included in the RWSP, King County issued its final report
on the RWSP in 2017.
The County has continued to identify projects for its Conveyance System Improvements Program based
on decennial flow monitoring data and updated land use and population projections. Those projects
include the replacement of the Lakeland Hills Pump Station located along the White River within Roegner
Park, which is planned for the year 2031.
In 2019, the County began the planning process for what is to be called the Clean Water Plan. Activities included evaluation of existing assets, analysis of evolving environmental regulations, decennial flow monitoring, future land use projection, and gathering stakeholder input. This planning effort is currently paused pending clarity on future regulations but is expected to resume once that clarity is achieved.
Page 29 of 1163
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CHAPTER 1 - INTRODUCTION AND BACKGROUND
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 1.1 Vicinity Map
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
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Disclaimer: Features shown in this
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Engineering and/or survey accuracy
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Data Sources: City of Auburn,
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CHAPTER 1 - INTRODUCTION AND BACKGROUND
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 1.2 Study Area
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
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King County
Pierce County
Unincorporated King County
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Letters of agreement
for Auburn to potentially
serve these parcels when
connected to sewer.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-8
1.3.6 City of Auburn Water Resources Protection Report
As identified in the City’s 2016 Sewer Plan, coordination with the Water Utility will be necessary in the
future, as many of the City’s unsewered areas lie within the Water Resource Protection Areas identified in
the Water Resources Protection Report completed in 2000. In particular, planning for future wastewater
infrastructure could include the importance of removing potential contamination (i.e., onsite sewer
systems) from those areas, based on coordination with the Water Utility. Auburn City Code 16.10 (Critical
Areas) now refers to the areas as “Aquifer Recharge Areas” and regulates activities within them.
1.3.7 City of Auburn Water Conservation
The City of Auburn's Sanitary Sewer Service Area largely overlaps with its Water Service Area, therefore,
water conservation efforts undertaken by the City's Water Utility will, by far, be the most likely to affect
sewage flows handled by the City's sewage collection system. The Water Utilities program is described in
Section 4.3 of the 2024 Water System Plan. The primary effect of such measures on the sewer system
would be to reduce the overall wastewater flow, while potentially increasing wastewater strength. Since
the City's sewer hydraulic model calibration was based on actual measured flows, the effects of existing
conservation measures have been accounted for. Further increased effectiveness of water conservation
efforts could result in capacity improvement projects being eliminated or delayed if anticipated flow
increases are not realized.
1.4 Neighboring Sewer Utilities
The communities surrounding the City administer their own wastewater conveyance and collection
systems. The following sections describe these systems and discuss interlocal agreements between the
City and these communities that establish SSSA boundaries and other conditions of service. Neighboring
sewer utilities that serve a portion of Auburn are identified in Figure 1.2.
1.4.1 Soos Creek Water and Sewer District and City of Kent
In the northeast corner of the city, within the Lea Hill sewer basin (as shown on Figure 1.2), there are small
areas served by the Soos Creek Water and Sewer District (SCWSD) and the City of Kent. In 2001, prior to
annexation of the Lea Hill area by the City, the City executed interlocal agreements with SCWSD and the
City of Kent, establishing sanitary sewer service area boundaries in the basin. The agreements enable
SCWSD and the City of Kent to provide the most efficient method of sanitary sewer service to this portion
of the City while ensuring adherence to the City’s development standards. Copies of these agreements are
included in Appendix A.
As development in Lea Hill occurs, the City will continue to work with both agencies to refine our
respective planning areas as needed.
1.4.2 City of Pacific
An interlocal agreement establishing sanitary sewer service area boundaries between the City and the City
of Pacific was executed in 2008. This agreement allows Auburn to provide sanitary sewer service to
property located on the eastern portion of Pacific’s municipal boundary, which lies in the vicinity of
Page 32 of 1163
CHAPTER 1 - INTRODUCTION AND BACKGROUND SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-9
Auburn’s wastewater infrastructure. The agreement recognizes that Auburn has sufficient wastewater
conveyance capacity to support the SSSA with maximum efficiency in the use of existing and future
facilities, together with orderly and efficient sanitary sewer planning. The cities of Auburn and Pacific are
considering allowing the area described in the agreement to be annexed by Auburn. A copy of this
agreement is included in Appendix A.
1.4.3 Muckleshoot Indian Tribe Reservation
The MIT reservation is located within and to the southeast of Auburn city limits, as shown in Figures 1.1
and 1-2. In 1997, the MIT, Indian Health Service, and City of Auburn entered into an agreement for the
City to provide wastewater service to the MIT property located outside city limits, outside the potential
annexation area (PAA), and outside the Urban Growth Area. An additional agreement, signed in 2004,
superseded the 1997 agreement, and outlined cost sharing in the replacement and maintenance to
the conveyance system from the south end of the City on Auburn Way South to the connection to
King County’s M Street Trunk. Two outcomes of that agreement were that (1) the MIT become a
component agency of the King County Wastewater Treatment Division, which officially occurred in
July 2004; and (2) the MIT would own a portion of the capacity within the Auburn Way South sewer line
for the conveyance of sewage from a portion of MIT properties located outside the City’s service area to
King County.
In 2013, Resolution 4902 established a master agreement/provision for City utility services on MIT lands.
Lands owned by the MIT within the City SSSA are billed as ordinary ratepayers. Development of lands
within the MIT reservation must be in accordance with the master agreement. MIT-related agreements are
included in Appendix A.
1.4.4 Lakehaven Water and Sewer District
In 2004, an interlocal agreement was established between LWSD (then known as Lakehaven Utility District)
and the City delineating a mutual sewer service area boundary within a portion of the West Hill Service
Area within the City.
Amendments to this agreement were made in 2005, and 2018, transferring sewer service from LWSD to
the City for portions of the area known as Jovita Heights-West Hill. Copies of both LWSD agreements are
included in Appendix A.
1.4.5 City of Algona
The City of Algona borders the City of Auburn to the southwest. In 2003, the cities of Algona and Auburn
executed an interlocal agreement establishing sanitary sewer service area boundaries. The agreement
allows Algona to provide sewer service to a small area in southwest Auburn, within the city limits and
adjacent to Algona. Sewer service by Algona provides efficiency in the use of existing and future facilities.
An additional agreement between Auburn and Algona was executed in 2020 to clarify the connection
locations and billing responsibilities for several parcels located along the service area boundary. Copies of
both Algona agreements are included in Appendix A.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-10
1.4.6 City of Bonney Lake
An addendum to a 1998 interlocal agreement establishing sanitary sewer service area boundaries
between the cities of Bonney Lake and Auburn to roughly coincide with Auburn’s PAA boundaries was
executed in February 2005. The addendum added a single parcel to the City SSSA because the parcel was
partially located in both Auburn’s and Bonney Lake’s service areas as a result of the previous agreement.
In April 2005, an interlocal agreement was established for Auburn to provide sanitary sewer service to a
parcel within Bonney Lake’s SSSA (and designated within Pierce County’s Urban Growth Area). The
maximum efficiency in the use of existing and future facilities is achieved by having Auburn provide sewer
service to this area within Bonney Lake. A subsequent agreement, executed in August 2005, allows for
Bonney Lake to serve the parcel in question once a sewer franchise with Pierce County has been secured
for the area of Pierce County in which this parcel is located. Copies of both Bonney Lake agreements are
included in Appendix A.
1.4.7 King County
In 2002, the City of Auburn was granted a sanitary sewer franchise from King County to operate, maintain,
repair, and construct sewer mains, service lines, and appurtenances in, over, along, and under County
roads and rights-of-way in areas that, at that time, were located within unincorporated areas of King
County. The legal descriptions of the areas covered by that agreement were updated through an
amendment approved in January 2013. Copies of the agreement and amendment (Resolution 5027) are
included in Appendix A. That franchise agreement will expire in 2027, so a renewal of the agreement
should be sought during this planning period.
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CHAPTER 2 - WASTEWATER SYSTEM GOALS AND POLICIES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 2-1
CHAPTER 2 WASTEWATER SYSTEM GOALS AND POLICIES
This chapter presents policies and standards that guide the operation and development of the City’s
wastewater collection and conveyance system.
2.1 City Comprehensive Plan Consistency
The City Comprehensive Plan serves as the City’s blueprint for managing growth, encompassing policies
aimed at protecting critical areas and preserving natural resource lands. This plan also designates urban
growth areas, outlines the preparation of comprehensive utility plans, and an implementation approach
through capital investments, and development regulations. The City Comprehensive Plan provides a
framework of policies for development, expansion, and maintenance of the Utility reflected in this Plan.
2.2 Business Practices/Asset Management
The City desires to employ recognized best business practices that result in an efficient and cost-effective
operation of the Sanitary Sewer Utility. The City shall identify the key business functions within the
Sanitary Sewer Utility (e.g., billing, permitting, asset management, and planning) and develop supporting
best business practices for each.
The City understands that defining and implementing best business practices is a long-term effort and will
require a stepwise approach. Given that the Utility is largely composed of physical assets that have the
greatest value and deserve the greatest commitment to operate and maintain, the City shall continue to
prioritize asset management.
Asset management is a systematic approach to keep assets in good working order to minimize future
maintenance and replacement costs, and especially to avoid costly deferred maintenance. The best
practices for asset management involve systematically basing choices on an understanding of asset
condition and performance, risks, and costs in the long term. Asset management best practices include:
Having extensive knowledge about assets and their costs for maintenance and replacement
(i.e., detailed inventories).
Maintaining Levels of Service.
Taking a life-cycle approach to asset management planning.
Implementing the planned solutions to provide a reliable, cost-effective service.
Since the adoption of the 2016 Comprehensive Sewer Plan, the Utility has compiled an inventory of assets
and their conditions for approximate 70 percent of its current assets. The Utility shall continue
implementing the above best practices during the next planning period.
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CHAPTER 2 - WASTEWATER SYSTEM GOALS AND POLICIES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 2-2
2.3 Sewer Comprehensive Plan Policies, Standards, and Guidelines
This Plan presents policies and standards related to system development, maintenance, funding, and
general guidelines for Sanitary Sewer Utility operation. These policies define limits and outline how the
wastewater collection system should be operated and maintained and are grouped within goal
statements that are headlined under the following categories:
Service Area.
System Planning.
Operations and Maintenance.
Environmental Stewardship.
System Performance and Reliability.
Fiscal Responsibility.
2.3.1 Service Area
Goal 1: Plan for sewer extensions and capacity upgrades to reflect the planning and growth projections
included in the City’s Comprehensive Plan, such that the public sewer system, when constructed, will have
adequate capacity to support all future planned development.
Policy 1.1 - Incorporate the Comprehensive Sewer Plan as an Element of the City's Comprehensive
Plan.
Policy 1.2 - Sewer Service provided by outside purveyors within City limits are required to obtain a
franchise with the City and are required to conform to all federal, state, and local laws and regulations.
(ACC 20.02.040 and 20.04).
Policy 1.3 - Future land use patterns for the SSSA will correspond to existing uses or current
designations or as otherwise identified in the City’s Comprehensive Plan.
Policy 1.4 - Require that, if a sewer system extension is needed to serve new development, that it is
built prior to or simultaneously with such development, according to the size and configuration
identified by the Comprehensive Sewer Plan and the City’s Comprehensive Plan, as necessary to serve
all planned development. (ACC 13.20.270).
Policy 1.5 - Require the owner of a property connecting to the public sewer system be responsible for
the cost of the sewer line across the frontage of, and within their property (ACC 13.20.270), and for a
proportionate share of the costs of pump stations, trunk lines, and other facilities specifically designed
to enable service to a larger basin. As such:
» Property owners connecting to existing sewer facilities may be required to reimburse the installer
of those facilities, if the facilities satisfy the responsibility described above. (ACC 3.25).
» Developers, or the City if it funds the construction, may be eligible to be reimbursed, by property
owners connecting to the public sewer system, for the cost of installing those facilities that
benefit multiple properties. (ACC 3.25).
» Required improvements may be deferred for reasons of efficiency, but the property owner will, in
the future, be obligated to pay a proportionate share of the construction of that required
improvement.
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CHAPTER 2 - WASTEWATER SYSTEM GOALS AND POLICIES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 2-3
2.3.2 System Planning
Goal 2: Plan for future service to all properties in the City within urban density areas.
Policy 2.1 - System planning will include a provision for future sewer service to all unsewered
properties within the SSSA.
Policy 2.2 - Identify, through interlocal agreements, a sanitary sewer provider for those properties
located within the City, but outside the City’s SSSA.
Policy 2.3 - Consider, but not encourage, providing sanitary sewer service to properties outside the
SSSA. Property owners outside the SSSA bear the burden of pursuing adjacent sewer providers for
service prior to seeking service from Auburn. Considerations for service include:
» An analysis of the capacity of existing City of Auburn facilities.
» Required upgrades to City of Auburn facilities.
» Operational costs added to the Utility.
» Potential revenue from the added service area.
» Concurrence of the existing sanitary sewer service area provider.
» The temporary or permanent nature of the service.
» The need to permanently adjust the service area boundary and have it approved by the Boundary
Review Board.
» Potential impacts to public health.
Policy 2.4 - Consider allowing properties within the SSSA to receive service from an adjacent sewer
agency. Considerations for service by an adjacent agency include:
» Future City of Auburn sewer service plans and the anticipated short and long-term timing of such
an extension.
» The effect of long-term capital costs on other future City of Auburn Customers.
» The willingness/ability of the adjacent agency to provide service.
» The temporary or permanent nature of the service change.
» The need to permanently adjust the service area boundary and have it approved by the Boundary
Review Board.
» The potential impact on public health.
Policy 2.5 - The Sanitary Sewer Utility does not intend and will not plan to extend sanitary sewer
service to or through King or Pierce County rural zoned property. Exceptions will only be considered
for reasons of health, safety, or service to a school in accordance with King or Pierce County policies
and with the approval of King or Pierce County.
Policy 2.6 - Allow development where public sewer service is not readily available to be served by
individual onsite (septic) systems, if the individual lots are suitable for onsite systems, per the
requirements and approval of King County or Pierce County Department of Health, and the City’s or
Counties’ development codes. The allowance of the use of onsite systems will consider City water
resource protection efforts and possible impacts to city drinking water sources. (ACC 13.20.060,
13.20.080, and 13.20.090).
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 2-4
Policy 2.7 - Require a connection to public sewer if an existing onsite (septic) system fails and a permit
to repair that system cannot be issued by the County Health Department that has jurisdiction.
(ACC13.20.060 and 13.20.070).
Policy 2.8 - Maintain an asset database to be used in prioritizing asset maintenance and repair and
replacement activities. The database includes asset age and material information, and will be validated
and updated through inspections, records review, and other available information.
2.3.3 Operations and Maintenance
Goal 3: Manage the extension of the public sewer system to minimize future costs to operate and
maintain.
Policy 3.1 - Set standards for the design and construction of the sanitary sewer infrastructure primarily
based on the technical criteria found in the most recent versions of the Ecology publication Criteria
for Sewage Works Design (CSWD) and Washington State Department of Transportation (WSDOT)/
American Public Works Association (APWA) Standard Specifications. (ACC 13.20.270).
Policy 3.2 - Maintain specific criteria for the design and repair of public and private sewer systems,
through the City of Auburn Engineering Design and Construction Standards. (ACC13.20.270
and 13.20.300).
Policy 3.3 - Require the transport of sewage by gravity whenever feasible in order to increase
reliability, sustainability, and long-term cost effectiveness.
Policy 3.4 - Allow pumped systems when it is not feasible to install a total gravity system. Feasibility
criteria include the relative elevations of the property to be served and existing sewer infrastructure
and physical conditions, such as the existence and nature of critical areas, which may impact the
constructability and maintainability of proposed gravity sewer extensions.
Policy 3.5 - Allow non-gravity services (e.g., grinder pumps, low-pressure force mains, or other on-site
pumping facilities) in extenuating circumstances when service by gravity is infeasible, provided that
the cost of installation, operation, and maintenance of a non-gravity system shall be borne by the
property owner, community association, developer, etc. The City will evaluate applications for non-
gravity services consistent with ACC 13.20.200. The City will not install, own, or maintain (outside of
emergencies) any part of a private non-gravity system. (ACC 13.20.500 and 13.20.510).
Policy 3.6 - Give preference to the construction of fewer large public pump stations over a greater
number of smaller public pump stations.
Policy 3.7 - Allow private sewer conveyance systems, consistent with Washington Administrative Code
(WAC) 173-240-104(3)(b), within the SSSA as long as they are designed and operated per City
standards and are not part of sewer extensions to other parcels. Multiple connections per parcel are
allowed. (ACC13.20.500).
2.3.4 Environmental Stewardship
Goal 4: Design, operate, and maintain the public sewer system in a manner that increases reliability and
efficiency, and demonstrates environmental stewardship.
Policy 4.1 - Comply with all federal, state, and local regulations in operation and maintenance of the
City’s wastewater collection and conveyance infrastructure.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 2-5
Policy 4.2 - Prevent storm drainage from entering the sanitary sewer system and pursue inflow and
infiltration (I/I) reduction for the purposes of eliminating or reducing required capacity upgrades and
reducing maintenance costs (to include reducing wear and tear on pump stations) when determined
to be cost-effective. (ACC13.20.130).
Policy 4.3 - In order to protect public health and the environment, require a property owner to
promptly repair any private sewer system failure. If the property owner fails to do so, the City will take
such action, as it deems necessary, to prevent or rectify an overflow, including but not limited to
temporarily suspending occupancy of the premises or repairing the system at the property owner’s
expense. (ACC 13.20.500 and 13.20.510).
Policy 4.4 - Support the use of reclaimed water technologies where economically feasible. City staff
will evaluate opportunities for reclaimed water use and support initiatives where the benefits
outweigh costs.
Policy 4.5 - Size the sewer collection system for peak wet weather flow rates that include I/I flows.
Gravity sewers will be sized to convey the once-per-20-year peak hour flow without surcharging.
Policy 4.6 - Size pump stations and force mains for peak wet weather flow rates that include I/I flows.
Pump stations will be sized to convey the once per 5-year flow with one pump out of service and
convey the once per 20-year flow with all pumps in service.
Policy 4.7 - Maintain, operate, and repair public sewers and portions of private side sewers located
within public rights-of-way, except when damage is caused by discharges from private property or
trees located on private property. (ACC13.20.120 and 13.20.182).
Policy 4.8 - Review complaints/citizen reports and claims made against the City for damages caused
by sanitary sewers to identify and make improvements as required.
Policy 4.9 - Communicate proactively with the community and stakeholders regarding wastewater
service improvements.
Policy 4.10 - Investigate all customer service calls within 24 hours and record results in the
computerized maintenance management system (CMMS).
Policy 4.11 - In cooperation with King County, seek to eliminate prohibited discharges to the public
sanitary sewer system. (ACC 13.20.140, 13.20.156, 13.20.158, and 13.20.160).
Policy 4.12 - Require that businesses which may introduce fats, oils, and greases (FOG) into the waste
stream have a grease interceptor installed and maintained to minimize FOG discharge to the public
sewer system. (ACC 13.22.020).
2.3.5 System Performance and Reliability
Goal 5: Apply asset best management principles to the City’s sewer infrastructure.
Policy 5.1 - Develop and implement system improvements, infrastructure renewal (repair, rehabilitation,
or replacement), and M&O programs for the wastewater system according to asset management
principles that address the triple bottom line (economic, social, and environmental benefits and costs),
minimize asset life-cycle costs, and incorporate risk management into decision making.
Policy 5.2 - Monitor the frequency and causes of any service disruptions and develop programmatic
methods for reducing the number of disruptions.
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CHAPTER 2 - WASTEWATER SYSTEM GOALS AND POLICIES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 2-6
Policy 5.3 - Perform condition assessments of critical assets, developing and implementing a
condition assessment schedule for all critical assets.
Policy 5.4 - Assign industry standard design lives for sewage assets. The actual physical assessment
will be compared to the theoretical design life to determine the optimal economic life. Seek to repair
or replace system assets before they exceed their economic life. The number of high-criticality assets
beyond their economic life will be minimized.
Policy 5.5 - Conduct maintenance activities at a level that is consistent with optimizing system
reliability, asset economic life, and system performance.
Policy 5.6 - Maintain a level of reliability for pump stations provided by redundancy of critical
mechanical and electrical components. Provide backup power generators or dual power feeds and
provide a minimum of two pumps at each pump station.
Policy 5.7 - Implement the use of the National Association of Sewer Service Companies (NASSCO)
Pipeline Assessment and Certification Program (PACP) for inspection of all pipelines.
Policy 5.8 - Create, update on a routine basis, and use an emergency response plan for critical
facilities.
Policy 5.9 - When necessary, work on private property on private assets when the private asset is
negatively impacting the public system. If the condition requiring such work is the responsibility of
the owner, the City shall seek to recover the costs for the work. (ACC 13.20.510).
Policy 5.10 - Replace or repair private side sewers as part of a City initiated project to reduce I/I of
extraneous water into the sanitary sewer system where shown to be cost-effective versus capacity
improvements. (ACC13.20.130).
Policy 5.11 - Monitor the frequency, location, and details of all odor-related complaints. At a
minimum, respond, research the cause of, and propose control methods once three complaints per
month at a site are documented.
Policy 5.12 - Take adequate measures to ensure system security. At a minimum, maintain security at
pump stations by using the SCADA system (motion detection, intrusion alarms) to alert City personnel
when unauthorized access is occurring.
Policy 5.13 - Take appropriate measures to ensure the redundancy and security of data related to the
sewer system, including, but not limited to the supervisory control and data acquisition (SCADA),
CMMS, GIS, and closed-circuit television (CCTV) systems as well as permitting and other development
records.
Policy 5.14 - Encourage employee participation in workshops, seminars, and other education
programs to improve job skills. The City may pay fees and employees’ time for the required
certification testing, as well as required annual renewal fees if such certification is a job requirement.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 2-7
2.3.6 Fiscal Responsibility
Goal 6: Manage the sewer utility funds and resources in a professional manner in compliance with
applicable laws, regulations, and City financial policies, which requires ongoing monitoring of revenues
and expenses in order to make prudent business decisions and report to City officials, as needed,
regarding the status of utility operations.
Policy 6.1 - Implement an adequate system of internal financial controls and adopt a biennial budget.
Policy 6.2 - Remain a self-supported enterprise fund; however, grants and other alternative financing
may be sought and used.
Policy 6.3 - Assess appropriate rates and system development charges (SDC) to fund the ongoing
maintenance, operation, and capital expenditures of the Utility, in accordance with the
Comprehensive Sewer Plan. Periodic cost of service studies shall be completed to reassess the
monthly service and SDCs.
Policy 6.4 - Maintain adequate reserves for operation and maintenance, capital improvement, and
Sewer revenue bond obligations in order to ensure that the Utility can provide continuous, reliable
service and meet its financial obligations under reasonably anticipated circumstances.
Policy 6.5 - Establish Sewer rates at a level sufficient to pay expenses and maintain adequate reserves.
Policy 6.6 - Structure Sewer rates to allocate costs fairly and equitably among different customer classes.
Policy 6.7 - Charge uniform Sewer rates for all Utility customers of the same class throughout the SSSA.
Policy 6.8 - Consider providing rate assistance programs for qualified specific low-income seniors or
totally or permanently disabled citizens.
Policy 6.9 - Establish fees and charges to recover utility costs related to development.
Policy 6.10 - Require new customers to substantially pay for the costs of improvements designed to
accommodate growth, while the costs to operate, maintain, repair, replace, and improve the existing
system capacity are paid by all sewer system customers.
Policy 6.11 - Sustain funding for the CIP at a level sufficient to maintain system integrity.
Policy 6.12 - Reinvest in Utility capital assets in order to ensure that the integrity of the existing Utility
plant and equipment is maintained. This reinvestment is generally referred to as repair and
replacement (R&R).
Policy 6.13 - In addition to projects designed to maintain and replace existing facilities, seek to invest
annually in system improvements designed specifically to upgrade the system in order to meet State
regulations and the City’s standards and criteria. These improvements may include upgrades to the
sanitary sewer SCADA and data management systems, and upgrades to increase safety for both City
personnel and the public, bring noncompliant infrastructure into compliance, and reduce
environmental impacts.
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Policy 6.14 - Consider replacing or upsizing sewer facilities in the right-of-way whenever a street is to
be substantially reconstructed or other significant utility work is to be completed, especially when
sewer improvements are specifically identified in the Comprehensive Sewer Plan. In addition, consider
street and other utility improvement needs when replacing or upsizing sewer facilities.
Policy 6.15 - Consider installing public sewer extensions by the formation of Local Improvement
Districts whenever a street is to be substantially reconstructed or a new street built where public
sewer does not currently exist.
Policy 6.16 - Consider investing in sewer extensions and the construction of pump stations based on
the following considerations:
» Cost of the infrastructure.
» Size of the service area as measured by potential customers or customer equivalents.
» Potential coordination with other City Capital projects that will decrease the overall cost of the
proposed extension.
» The ability to recoup costs from future customers whose connection was facilitated by the
investment.
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CHAPTER 3 - PLANNING CONSIDERATIONS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 3-1
CHAPTER 3 PLANNING CONSIDERATIONS
This chapter includes information related to the projected future development of the City and the
resulting needs for capacity improvements to the wastewater collection and conveyance system. Recent
needs for changes to land use planning efforts affecting the City SSSA are also discussed.
3.1 Planning Area
The Comprehensive Sewer Plan Study Area is shown in Figure 1.2. It generally encompasses the area
within the incorporated city limits of Auburn with the following exceptions (Shown on Figure 1.2):
Some areas on the West Hill are within the City but are served by the LWSD.
Some areas of Lea Hill are within the City but are served by the SCWSD or the City of Kent.
The City currently conveys flows from areas within Bonney Lake’s service area that are adjacent to the
southernmost boundary of Auburn’s service area and for which Bonney Lake does not yet have
adequate infrastructure.
The City currently serves a small area of the City of Pacific just north of the White River.
The City currently serves an area of Unincorporated King County just west of the city limits.
There are several areas within the City which are islands of unincorporated King or Pierce County.
These areas are within the City’s urban growth area and sewer service area.
3.2 Basis of Planning
An evaluation was made of the existing system conditions and for the projected flow conditions in 2044.
Hydraulic modeling for the existing flow conditions was developed using measured rainfall, flow data
collected from October 2020 to May 2022 and the physical characteristics of the existing collection and
conveyance system.
Future flow conditions were projected using estimated growth developed during the current preparation
of the City’s Comprehensive Plan. Housing Unit and Employment growth projections/goals were
distributed to areas of expected growth throughout the City based on the availability, or anticipated
availability of necessary infrastructure such as transportation and utilities, as well as the concentration of
developable land. The anticipated additional flow from that growth was then incorporated into the
hydraulic model to identify areas where increased capacity will be required as that growth occurs.
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CHAPTER 3 - PLANNING CONSIDERATIONS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 3-2
3.3 Land Use
Land use designations are used to encourage growth in areas where the City’s infrastructure, including
the sanitary sewer system, is or will be adequate to serve that additional growth. The City currently
uses 13 land use designations within four general categories.
Table 3.1 Land Use Categories
General Categories Designations
Residential Residential Conservancy
Single Family Residential
Moderate Density Residential
Multiple Family
Commercial Downtown Urban Center
Neighborhood Commercial
Light Commercial
Heavy Commercial
Mixed Use
Industrial Light Industrial
Heavy Industrial
Public and Institutional Open Space
Public/Quasi Public
These designations, along with their accompanying zoning, aim to achieve the growth patterns included
in the projections. Any changes to land-use designations during the current planning cycle are expected
to support the projected growth, and therefore, expected to maintain the projected wastewater flows.
The current land use designations for the City are shown in Figure 3.1
Page 44 of 1163
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Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 3 - PLANNING CONSIDERATIONS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 3.1 City of Auburn Land Use Designations
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Roads
City of Auburn Service
Area
Auburn City Limits
Land Use
Residential Conservancy
Single Family
Multi-Family
Downtown Urban Center
Industrial
Commercial
Parks/Open Space
Public/Quasi-Public
Urban Growth Area
18
18
167
167
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 3-4
3.3.1 Description of Land Use Designations
Below is a description of the characteristics and goals of each of the land use designations. Each of the
categories and designations are accompanied by specific policies and associated zoning designed to
achieve the described character.
3.3.1.1 Residential
Residential Conservancy - This designation should consist primarily of low-density residential uses
(one dwelling unit per four acres is allowed) and accessory agricultural uses in areas featuring
environmental constraints or requiring special protection such as the Coal Creek Springs watershed
area, low-lying areas along the Green River, and areas that are isolated from urban services. This
designation will serve to both protect environmental features and to hold areas for higher density
development until public facilities become available.
Single Family Residential - This designation is the predominant land-use category in the City.
Maintaining and creating a diverse arrangement of interconnected subdivisions, neighborhoods, and
communities that have a mix of densities and housing types; linkages with other residential areas and
commercial hubs through nonmotorized modes, such as pedestrian and bicycling, and vehicular
modes will be encouraged.
Moderate Density Residential - These designated areas are planned to accommodate a variety of
residential dwelling types. Varying densities may be permitted to provide a transition between single-
family residential and other more intensive uses or activities (such as arterial streets) based on
adjacent density, intensity, and/or character. Appropriate densities in these areas generally range from
7 to 20 dwelling units per acre. Dwelling types generally range from single-family dwelling to
multiple-family dwellings, with larger structures allowed (within the density range) where offsetting
community benefits can be identified.
Multiple Family - This category shall be applied to those areas that are either now developed or are
reserved for multiple family dwellings. Densities may range from 20 to 24 units per acre. These
communities are served by transit, have nonmotorized connections to surrounding amenities and
services, or have access to on-site amenities.
3.3.1.2 Commercial
Downtown Urban Center - This category should be applied exclusively to downtown Auburn. The area
should be developed in consistently with and conducive to pedestrian-oriented activities. The
ambiance of the downtown area should encourage leisure shopping, provide services to local
residents and area employees, and provide amenities that attract regional visitors and shoppers.
Neighborhood Commercial - Low-intensity, small-scale commercial services that meet the daily needs
of and complement the quality of the residential neighborhoods they serve. Commercial uses need to
be carefully located, (if located within single-family residential neighborhoods), or should be buffered
from single-family residential areas. These areas are characterized by lower traffic, fewer operating
hours, smaller-scale buildings, and less signage than light commercial areas.
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CHAPTER 3 - PLANNING CONSIDERATIONS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 3-5
Light Commercial - This category represents the prime commercial designation for small- to
moderate-scale commercial activities. These commercial areas should be developed in a manner
consistent with and attractive to pedestrian-oriented activities. Such areas should encourage
walkability, leisure shopping, engaging public space, and should provide other amenities conducive to
attracting shoppers.
Heavy Commercial - This category is intended to accommodate uses that would also facilitate a wide
range of heavier commercial uses involving extensive storage or vehicular movement.
3.3.1.3 Industrial
Light Industrial - This category is intended to accommodate a wide range of industrial and
commercial uses. This designation is intended to provide an attractive location for manufacturing,
processing and assembling land use activities that contribute to quality surroundings. A wide variety
of appropriate commercial uses in this designation benefit from the location, access, physical
configuration, and building types of these properties. It is distinguished from heavier industrial uses
by means of performance criteria. All significant activities shall take place inside buildings, and the
processing or storage of hazardous materials shall be strictly controlled and permitted only as an
incidental part of another use.
Heavy Industrial - This designation allows the full range of industrial uses, as well as certain heavy
commercial uses that serve the needs of workers in light industries are also appropriate.
3.3.1.4 Public and Institutional
Open Space - This category shall be applied to areas that are owned by a public entity and
maintained in a largely undeveloped state. It includes parks, watersheds, shoreline areas, significant
wildlife habitats, storm drainage ponds, utility corridors with public access, and areas with significant
development restrictions.
Public/Quasi Public - This category covers those areas that are reserved for public or quasi-public
uses. It is intended to include those areas of a significant size, and not those smaller public uses that
are consistent with and may be included in another designation. These public uses include public
schools, developed parks, and uses of quasi-public character such as large churches and private
schools. Public uses of an industrial character are included in the industrial designation, and
small-scale religious institutions of a residential character are included in the residential designation.
Streets, utilities, and other separate uses are not intended to be mapped separately as
Public/Quasi-Public.
3.4 Sewer System Flow Components
The City has separate sewer and stormwater collection systems, where only wastewater is conveyed in the
sanitary sewer system. However, some groundwater and stormwater inevitably enter the sanitary sewer
through defects in pipes and manholes (MH) and illicit storm drain connections. Therefore, sewer flows
may vary substantially between dry and wet weather.
The different flow components are described in the section below.
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CHAPTER 3 - PLANNING CONSIDERATIONS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 3-6
3.4.1 Dry Weather Flow Components
There are two components of dry weather flow:
Base wastewater flow (BWF).
Dry weather groundwater infiltration (GWI).
3.4.1.1 Base Wastewater Flow
The BWF is the sanitary flow generated by routine water usage of the City’s residential, commercial, and
mixed-use customers. The collection system’s primary function is conveying this flow. The flow has a
diurnal pattern that varies by customer. Typically, a residential diurnal pattern has two peaks with the
more pronounced peak following the wake-up hours of the day, and a less pronounced peak occurring in
the evening. Commercial and mixed-use patterns, though they vary depending on the type of use,
typically have more consistent higher flow patterns during business hours, and lower flows at night.
Furthermore, a weekend diurnal flow pattern may vary from the diurnal flow experienced during a typical
weekday.
3.4.1.2 Groundwater Infiltration
Dry weather GWI enters the sewer system through defects such as cracks, misaligned joints, MH defects,
and broken pipelines. Dry weather GWI only occurs when the relative depth of the groundwater table is
higher than the depth of the pipeline and where there is a defect; therefore, it varies throughout the
system. Dry weather GWI (or base infiltration) cannot easily be separated from BWF by flow measurement
techniques. Therefore, dry weather GWI is typically grouped with BWF.
3.4.1.3 Average Dry Weather Flow
Average dry weather flow (ADWF) is the average flow that occurs on a daily basis during the dry weather
season and is representative of routine wastewater discharges into the collection system from customers
as well as baseline groundwater infiltration.
3.4.2 Wet Weather Flow Components
Wet weather flow (WWF) includes two components:
Inflow and Infiltration (I/I).
Wet weather GWI.
3.4.2.1 Inflow and Infiltration
The stormwater I/I response in the sewer system to rainfall is seen immediately (inflow) or within hours
after the storm (infiltration).
Inflow is stormwater that enters the sewer system via a direct connection to the system, such as roof drain
and downspout connections, leaky MH covers, and illicit storm drain cross-connections. Infiltration is
stormwater that enters the sewer system by percolating through the soil and then through defects in
pipelines, MHs, and joints. An adverse effect of I/I entering the sewer system is an increase both the flow
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 3-7
volume and peak flows so that the sewer system could be operating at or above its capacity. If too much
I/I enters the sewer system, sanitary sewer overflows (SSO) could occur.
3.4.2.2 Wet Weather Groundwater Infiltration
Wet weather GWI is not specific to a single rainfall event, but rather to the effects on the sewer system
over the entire wet weather season. The depth of the groundwater table rising above the pipe invert
elevation causes GWI. Sewer pipes within close proximity to a body of water can be greatly influenced by
groundwater effects.
Wet weather GWI is associated with extraneous water entering the sewer system through defects in pipes
and MHs while the ground is saturated during the wet weather season. Wet weather GWI may occur
throughout the year, although rates are typically higher in the late winter and early spring in the Pacific
Northwest.
3.4.2.3 Peak Wet Weather Flow
Peak wet weather flow (PWWF) is the highest observed hourly flow that occurs following the selected
design storm event. PWWF in a sewer system can be more than ten times the base flow, causing utilities to
construct high-capacity infrastructure to convey and treat these flows. For Auburn most of the basins have
a peak factor below 5 for the 20-year design storm, with one small basin over 10 as noted in Chapter 5.
3.5 Average Dry Weather Flow
Developing an accurate estimate of the future quantity of wastewater generated at build-out of the
collection system is an important step in maintaining and sizing sewer system facilities, for both existing
conditions and future scenarios.
Base flow can be estimated for a wastewater system by comparing dry weather flow and wet weather flow
at the various flow monitoring locations. To estimate ADWF for more specific areas, such as individual
wastewater basins, dry weather flows are typically estimated based on the area contributing to flows and
flow coefficients developed for each land use type. This method is developed based on the assumption
that areas with similar land uses, such as low-density residential parcels, produce equivalent quantities of
wastewater flow. System-wide flows can be compared to measured flows at flow monitor locations. This
method of estimating base flows is an industry standard for planning and provides sufficiently accurate
data for planning purposes.
3.5.1 Average Dry Weather Flow Development
Existing ADWFs for each basin were estimated using data from the Flow Monitoring Program for each of
the flow monitoring basins. ADWF was developed using the driest days from the flow monitoring period
based on the following set of minimum criteria:
Less than 0.1 inch of rain the previous day.
Less than 0.4 inch of rain in the previous three days.
Less than 1.0 inch of rain in the previous five days.
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Selected days must exhibit average-day flows within 85 percent to 115 percent of the average-day
flows of remaining dry days.
In addition, those dry days that exhibited unusual flow patterns were not used to generate net dry day
flow values for a basin.
Characteristic dry weather 24-hour diurnal flow patterns for each site were developed based on the hourly
data. The hourly flow data were also used to calibrate the hydraulic model for the observed dry weather
flows during the flow monitoring period. Hourly patterns for weekday and weekend flows vary and were
separated to better understand dry weather flow. Additional information on this process is outlined in
Appendix B.
3.6 Wet Weather Flow
PWWF in a wastewater collection system are caused by rainfall dependent I/I. Peak hour flows can result
in flows more than ten times the base flow, causing utilities to construct high-capacity infrastructure to
convey and treat these extraneous flows.
Existing and projected PWWFs are predicted using the hydraulic model and design storm used for this
Plan. This analysis uses a 20-year recurrence interval design storm, illustrated in Chapter 5 - Wastewater
System Analysis. This storm was identified in the 2012 King County I/I Study and corresponds to the
recurrence interval within historical King County rainfall. To represent typical Pacific Northwest winter
rainfall conditions, antecedent rainfall was added from historical data. Additionally, climate change risk
was evaluated by modifying the design storm to represent possible changes to local rainfall based on the
latest available research. Further details on the development of the design storm and climate evaluation
can be found in Chapter 5 - Wastewater System Analysis.
Page 50 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-1
CHAPTER 4 DESCRIPTION OF EXISTING SYSTEM
This chapter describes the existing wastewater collection and conveyance system and SSSA. The City
provides wastewater collection services to city residences and businesses through multiple facilities
including gravity sewers, pump stations, and force mains. The wastewater flow is conveyed to the
King County Regional Wastewater System for treatment and disposal. The City’s system consists of
17 sewer pump stations, approximately 5,500 MHs, and approximately 210 miles of sewers and
force mains. The City’s system is intended to collect and convey only sanitary flow, but the flow also
includes rainfall-derived I/I. There are no known SSO in the system.
4.1 Overview
For purposes of discussion, the City’s wastewater collection system is divided geographically into five
major sewer basins. The descriptions of the five major sewer basins (Valley, West Hill, Lea Hill, Auburn Way
South, and South Hill) are presented below and shown on Figure 4.1.
4.1.1 Valley Sewer Basin
The Valley Sewer Basin is located on the valley floor and contains the oldest portions of the City’s sewer
collection system. Four primary King County trunk sewer lines (Stuck River Trunk Sewer, M Street Trunk
Sewer, Auburn Interceptor Sewer, and Auburn West Interceptor Sewer) convey flow from south to north
along this sewer basin, providing the backbone for service to the City. The Valley Sewer Basin receives
flows from the other four sewer basins and conveys these flows to the King County sewer trunk lines. The
topography of the valley is very flat with a minor incline, sloping down from the south end of Auburn
(elevation 109 feet) to the north end of Auburn (elevation 53 feet). Seven pump stations are located within
the Valley Sewer Basin to serve areas which are unable to reach the King County trunk lines by gravity. The
City provides service to two small areas of unincorporated King County, located within the sewer basin.
The Valley Sewer Basin is bounded by the Lea Hill and Auburn Way South sewer basins to the east, the
South Hill Sewer Basin and the Cities of Algona and Pacific to the south, the West Hill Sewer Basin to the
west, and the city of Kent to the north.
4.1.2 West Hill Sewer Basin
The West Hill Sewer Basin includes areas located on the West Hill above the valley floor as well as areas of
the valley adjacent to the hill. Flows from the West Hill Basin are conveyed to two King County trunk
lines—the Auburn West Valley Interceptor and the Auburn Interceptor. Two pump stations serve portions
of this basin. The Peasley Ridge Pump Station serves a small area on the westernmost edge of the basin.
The Hudson Pump Station serves a flat area on the valley floor in the north end of the basin. The West Hill
Sewer Basin is bounded by the Valley Sewer Basin to the east, city of Algona to the south, LWSD to the
west, and City of Kent to the north.
The western boundary of the West Hill Sewer Basin, which is also the western boundary of the service
area, was established by interlocal agreements with LWSD in 2004, 2005, and 2018 (see Appendix A).
Page 51 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-2
4.1.3 Lea Hill Sewer Basin
The Lea Hill Sewer Basin is the portion of the city located to the east of the Green River. Sewer flows exit
this basin into the Valley Sewer Basin by river crossings at the 8th Street Bridge or the Green River Siphon
(see Section 4.2.4). Four pump stations serve the Lea Hill Sewer basin. The Rainier Ridge, Verdana, and
Promenade Pump Stations are located on the east portion of the Lea Hill Sewer basin and convey sewage
to high points on the hill where it can flow via gravity to the river crossings. The Riverside Pump Station
serves low areas just east of the Green River and lifts sewage to the gravity sewer main that conveys
flows across the 8th Street Bridge. There is a significant unsewered area in the north portion of the
Lea Hill Sewer Basin. The area is substantially developed with single-family homes on lots between ¼-acre
and 1 acre that use existing on-site septic systems. The northeast area of the sewer basin is served by
SCWSD and the City of Kent (see Figure 4.1).
The basin is bounded on the south and west by the Green River. The north and east boundaries of the
Lea Hill Sewer Basin were established by a 2001 interlocal agreement with the City of Kent and by a 2006
interlocal agreement with the SCWSD (see Appendix A).
4.1.4 Auburn Way South Sewer Basin
The Auburn Way South Sewer Basin is located east of the Valley Sewer Basin along Auburn Way South on
the Enumclaw Plateau. It is geographically bounded by State Route 18 to the north and the White River to
the south. The southeast portion of the Auburn Way South Sewer Basin borders the MIT reservation sewer
service area. The City and the Muckleshoot Utility District jointly own a major trunk line that discharges to
King County’s Stuck River Trunk Line and/or the M Street Trunk Line at the northwest edge of the sewer
basin.
4.1.5 South Hill Sewer Basin
The South Hill Sewer Basin is bounded by the White River to the north and east, City of Pacific to the west,
and City of Sumner and Pierce County to the south. Portions of the Pierce County area lie with the City of
Bonney Lake’s Sewer Service Area. The western half of the South Hill Sewer Basin has been developed as a
residential area. The eastern half (east of Kersey Way) of the sewer basin is currently developed as a
low-density residential area and is unsewered. There is a large 300–400-acre gravel pit that is intended to
be developed as a residential area within the next several years. Its development will require the
installation of a sewer pump station to convey the flow from at least a portion of that project. Three pump
stations (Area 19, Terrace View, and North Tapps) serve the southern extent of the sewer basin. All of the
flow from the South Hill Sewer Basin is conveyed to King County’s Lakeland Hills Pump Station, then
pumped to King County’s Lakeland Hills Trunk sewer located in the Valley Sewer Basin.
Page 52 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-3
4.2 Sanitary Sewer Facilities
The following sections provide information regarding the City’s wastewater facilities. Locations of the
pumping facilities, river crossings, King County trunk lines, and other key system elements are shown in
Figure 4.2. Ownership of interceptor and collection system pipelines is indicated by line color. Figure 4.2
also shows the City’s potable water pumps, wells, and reservoirs. The City draws its potable water from
deep aquifer wells located throughout its geographical boundaries. While no sewage treatment facilities
are located within the City, portions of the conveyance system are located in the vicinity of some of those
wells. Most of the sewer lines are located more than 100 feet from the wellheads as stipulated for new
sewer works by Ecology’s CSWD (G2-1.5.3), two well sites are close to 100 feet from existing sanitary
sewers in the central part of the system. As part of the sewer inspection activities outlined the Chapter 7
CIP, the distance between wellheads and sewers will be definitively measured at these sites. If sanitary
sewers are within 100 feet from the wellheads, based on condition and other projects in the vicinity, the
sewer distance can be addressed as part of the Sanitary Sewer Repair and Replacement/System
Improvements project summarized in Chapter 7, following the outlined priority methodology.
Page 53 of 1163
Valley
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Disclaimer: Features shown in this
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represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 4.1 Sanitary Sewer Basins
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Auburn City Limits
City of Auburn Service
Area
Roads
Parcels
Sewer Basins
Auburn Way South Sewer
Basin
Lea Hill Sewer Basin
South Hill Sewer Basin
Valley Sewer Basin
West Hill Sewer Basin
18
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167
Page 54 of 1163
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Last Revised: June 12, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
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Disclaimer: Features shown in this
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Engineering and/or survey accuracy
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Data Sources: City of Auburn,
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CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 4.2 Existing Wastewater Conveyance System
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
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City of Auburn Service
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18
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Page 55 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-6
4.2.1 Critical Infrastructure
For planning purposes, the City considers all sewer pump stations, force mains, river crossings, and areas
downstream of these facilities to be critical infrastructure. The critical infrastructure designation also
applies to major trunk lines (pipes greater than or equal to 12 inches in diameter). Also, all gravity sewer
lines serving the hospital, city hall, City maintenance facility, Justice Center, and fire stations are
considered critical. These critical assets are shown in Figure 4.3.
4.2.2 Pump Stations
Since preparation of the 2016 Comprehensive Sewer Plan, the City has added two new sewer pump
stations associated with new developments, the Hudson, and Promenade Pump Stations.
The City currently has 17 pump stations within its SSSA. The pump stations are listed in Table 4.1 along
with their location and year of construction or most recent replacement. More detailed information
regarding the pump stations is provided in Appendix C.
Table 4.1 City of Auburn Sewer Pump Station Inventory
Pump Station Year
Constructed/
Replaced
Cross Streets Approximate Address
South Hill Sewer Basin
Area 19 2006 Lake Tapps Pkwy. E and west of 72nd St. SE 800 71st Street SE
North Tapps 2007 Lake Tapps Pkwy. SE and west of 176th Ave. E 2610 Lake Tapps Pkwy. SE
Terrace View 2007 East Valley Hwy. E and north of Terrace View Dr. SE 6005 East Valley Highway
Valley Sewer Basin
Auburn 40 2010 42nd St NE and O Pl. NE 4159 O Pl. NE
Ellingson 2011 41st St. SE, East of A St. SE 40 41st St. SE
F Street 1980 F St. SE and 17th St. SE 1700 F St. SE
Hudson 2020 S 287th St and West Valley Hwy 6408 S 287th St.
R Street 1977 R St. NE and 6th St. NE 600 R St. NE
Valley Meadows 1992 4th St. SE and V St. SE 2022 4th St. SE
8th Street 1974 J St. NE and 8th St. NE 900 8th St. NE
22nd Street 1967 22nd St. SE and Riverview Dr. 1950 22nd St. NE
Auburn Way South Sewer Basin
Dogwood 2010 Dogwood St. SE and 15th St. SE 1423 Dogwood St. SE
West Hill Sewer Basin
Peasley Ridge 2001 S. 320th St. and 53rd Ave. S 5225 S 320th St.
Lea Hill Sewer Basin
Promenade 2018 SE 312th St and 132nd Way SE 12900 SE 312th St.
Rainier Ridge 1980 125th Pl. SE and south of SE 318th Way 31809 125th Pl. SE
Riverside 1981 8th St. NE and 104th Ave. SE 31902 104th Ave. SE
Verdana 2011 118th Ave SE and SE 296th Pl. 11807 SE 296th Place (Kent)
Page 56 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-7
4.2.3 Gravity and Force Main Collection System
The City sewer collection system includes approximately 205 miles of gravity and 5 miles of force main
pipe. The collection system is primarily composed of polyvinyl chloride pipe with an 8-inch diameter.
Older areas of the collection system consist of concrete or clay pipe, which the City has been replacing
with other material when repairs are required or anticipated. The City is continually updating its digital
geographic and record-keeping systems to include pipeline information such as material, diameter,
installation date, and TV reports. Figure 4.4 provides a visual representation (by overall system
percentage) of pipeline characteristics, including unknown and/or unrecorded data. The largest current
data gap is the installation date of collection system facilities. The recently formed Public Works GIS group
has begun a more detailed inventory and data collection effort that is compiling data from a variety of
sources to increase the reliability and usefulness of the system data. As part of the City’s asset
management efforts, City maintenance staff will verify collection system information during routine
inspections.
Additional conveyance facilities, primarily owned by King County, are also located within the
Auburn SSSA. King County conveyance facilities are discussed in Section 4.3.
4.2.4 Side Sewer Laterals
Generally, each building has a separate side sewer lateral connecting the building sewer to the public
main. The Utility is responsible for the maintenance and repair of the portion of side sewer laterals within
the right-of-way.
4.2.5 River Crossings
The City of Auburn collection system contains two crossings of the Green River. The crossings are located
at the 8th Street NE bridge and near 26th Street NE, both are shown in Figure 4.2. Detailed descriptions of
each river crossing are provided below.
4.2.5.1 Green River Crossing (via 8th Street NE)
The Green River crossing was constructed in 1965. The crossing consisted of a cast-iron pipe mounted on
the 8th Street NE bridge. When the bridge was replaced in 1971, that pipe was replaced with a
combination of ductile iron pipe and “reinforced plastic mortar pipe cast in concrete.” Because the
midpoint of the bridge is at a higher elevation than the bank on either side, the pipe does not have a
positive downhill slope across the bridge and must rely on upstream pressure developed in the line as it
comes down Lea Hill to force the flow across the bridge. The pipe continuing up Lea Hill is approximately
900 linear feet and is constructed of 14-inch-diameter cast-iron pressure pipe. At the bottom of the hill,
just upstream of the bridge, a valve chamber once housed a mechanically operated control valve. The
valve was originally designed to remain closed until pressure, as caused by the upstream pipe filling,
opened the valve, and released the flow across the bridge. Due to significant development on the east
side of the river, flow within this sewer segment became sufficiently high to maintain continuous scouring
flow along the flatter portion of the pipeline, so the valve has been removed.
Page 57 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-8
4.2.5.2 Green River Crossing (via Inverted Siphon at 26th Street NE)
The inverted siphon across the Green River near 26th Street NE was constructed in 1986 and includes
parallel 8- and 12-inch-diameter siphon pipelines. The 8-inch-diameter siphon is typically in use. When
increased flows occur, wastewater will be redirected to the 12-inch-diameter siphon. If needed, both
siphons are capable of operating together. The siphon facility includes a flushing manhole, located in
Isaac Evans Park.
Page 58 of 1163
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Last Revised: May 06, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 4.3 Critical Sewers
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Fire Stations
Medical Facility
!P Critical Service
Sewer Pump Station by Owner
"=)City of Auburn
"=)King County
"=)Private
Critical Sewers
King County Interceptors
Other Auburn Sewer Main
Auburn City Limits
City of Auburn Service Area
Roads
Parcels
18
18
167
167
Page 59 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-10
Figure 4.4 City of Auburn Collection System Summary Statistics
Page 60 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-11
4.3 King County Conveyance
The King County wastewater conveyance facilities serving the City include the Auburn Interceptor,
Auburn West Valley Interceptor, Auburn West Interceptor, M Street Trunk sewer, the newly constructed
Stuck River Trunk sewer, the Lakeland Hills Trunk sewer, and the Lakeland Hills Pump Station. As shown in
Figure 4.2, the King County facilities convey wastewater from the south to the north, collecting flow from
the Auburn SSSA. The Auburn West Valley Interceptor begins in Algona and flows through the West Hills
sewer basin. The Lakeland Hills Trunk sewer and Auburn West Interceptor carry flow from the Lakeland
Hills Pump Station north. The M Street Trunk sewer lies mainly on the eastern side of the Valley basin. The
Stuck River Trunk sewer extends from the south end of the M Street Trunk sewer in a westerly direction,
where it intersects the Lakeland Hills Trunk sewer. All flows are conveyed to the King County South
Treatment Plant in Renton, Washington.
King County has initiated a project to replace the Lakeland Hills Pump Station by 2031. The replacement
station will serve the same basin as the existing station but will include elements to increase its reliability
and maintainability. The capacity of the station will be designed to reflect future growth within its basin.
4.4 Infiltration and Inflow
As part of the analysis of the 2016 Plan, the City used King County Decennial Flow Monitoring
(from 2009-2011) and sewer pump station data to identify areas within the service area that may be
experiencing high levels of I/I. During this planning period, City staff hired a contractor to install
temporary flow meters at specific locations within the potential high I/I areas to locate specific areas of
high I/I more precisely. This monitoring corresponded with King County’s most recent decennial flow
monitoring effort (2020-2022), so that the data from both projects could be shared. The results and
conclusions from this effort are included in Chapter 5.
King County, along with the Metropolitan Water Pollution Abatement Advisory Committee (MWPAAC),
which is made up of component agencies (Cities and Districts who operate sewer collection systems
convey the wastewater to King County for treatment), have worked together since 2000 to measure I/I
and have piloted several programs to identify and reduce I/I. Actions included flow monitoring, smoke
testing, CCTV inspection, and construction projects designed to reduce I/I to the extent that the required
capacity of conveyance and storage facilities could be reduced. While the pilot projects were somewhat
successful in reducing I/I, it was not clear that costs of the projects were less than the costs of expanding
downstream capacity to convey such flows.
From 2017 until now, King County and MWPAAC have explored concepts to reduce I/I programmatically,
focusing on private side sewers and the reduction of I/I over the long term. These efforts included
developing or enhancing standards for side sewer construction, encouraging proactive maintenance for
side sewers, and identifying and mitigating sources on private property. The strategy with the most
potential impact is a proposal to require inspection and repair of side sewers at the point-of-sale of a
property. Since this proposal will likely require legislative action and input from a large field of
stakeholders, pursuit of that strategy may be included in the upcoming Clean Water Plan planning effort.
Page 61 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-12
4.5 Odor Control and Corrosion
Sewer Policy 5.11 commits the City to monitor frequent odor complaints and to act when three per month
are documented. City staff investigate all odor complaints to determine their source, persistence, and
potential source if it can be identified. Strategies for mitigating odor include sealing sewer manhole lids,
adding bioxide to pump station wet wells to minimize the generation of hydrogen sulfide gas, and
filtering wet well ventilation at pump stations. These strategies have been effective, and the City currently
has no sites where persistent odor has been detected or reported.
City staff assess corrosion in the system as part of manhole inspections, CCTV inspections of sewer mains,
and pump station wet well maintenance activities. The City has not identified any persistent widespread
problems with corrosion, but as specific incidents of corrosion are identified those observations are
recorded in the City’s CMMS. Strategies for managing corrosion include replacing or lining (using Cured-
in-Place Pipe) sewer mains, replacing corroded manhole rings and covers, and coating concrete pump
station wet wells.
4.6 Industrial Waste Discharges
As part of its conveyance service, the City accepts industrial waste from permitted industrial waste
dischargers. King County staff manage the industrial waste program, including permitting, inspection,
record-keeping, and enforcement. While that responsibility lies mainly with County staff, City staff help to
proactively identify potential dischargers as part of the business license review process. Table 4.2 below
identifies the current industrial waste dischargers within the City SSSA. For updated Industrial Waste
Discharge Permit information, contact King County’s Industrial Waste Program by phone (206.477.5300)
or E-mail (Info.KCIW@kingcounty.gov).
Table 4.2 City of Auburn Industrial Waste Discharge Permits
Company name Business type Address Permit type Permitted
Discharge (gpd)
ABAF - Imaginetics Metal Finishing - Cfr
433
3410 A Street SE Permit 21.000
Accurate Industries Metal Finishing - Cfr
433
233 D Street NW Zero Discharge
(Categorical)
0
Aero Controls Inc. - 20th
Street
Metal Finishing - Cfr
433
1610 20Th Street NW Minor Discharge
Authorization
100
American Powder
Coating
Metal Fabrication 3802 B Street NW Letter Of
Authorization
250
Auburn Dairy Products
Inc.
Food Processing-Dairy 702 W. Main Street Permit 50.000
Auburn, City of - Decant
Facility
Decant Station 1305 C Street SW Major Discharge
Authorization
2.000
Boeing Commercial
Airplane - Auburn
Metal Finishing - Cfr
433
700 15Th Street SW Permit 1.209.000
Costco Optical Lab No.
190 - Auburn
Manufacturing-Misc 1802 M Street NW Major Discharge
Authorization
24.500
Formula Corp. - Auburn Soap And Detergent
Mfg - Cfr 417
4432 C Street NE Permit 16.000
Page 62 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-13
Company name Business type Address Permit type Permitted
Discharge (gpd)
Hexacomb Corp. General Type 2820 B Street NW, Suite
111
Letter Of
Authorization
705
Hospital Central
Services Association
Inc.
Laundry - Linen 1600 M Street W Major Discharge
Authorization
50,000
MechPro Inc. Metal Finishing - Cfr
433
1320 26Th Street NW #4 Zero Discharge
(Categorical)
0
Oldcastle Infrastructure Cement/Readymix 2808 A Street SE Major Discharge
Authorization
7.000
Ply Gem Pacific
Windows Corp.
Manufacturing-Misc 5001 D Street NW Minor Discharge
Authorization
19.000
Plymouth Poultry
Vanguard
Food Processing 3416 B St NW Letter Of
Authorization
1.000
Safeway Inc. - Auburn
Distribution Center
Vehicle Washing 3520 Pacific Avenue S. Letter Of
Authorization
1,750
Skills Inc. - Auburn
Facility
Metal Finishing - Cfr
433
715 30Th Street NE Permit 16,300
Thermaline Inc. Metal Finishing - Cfr
433
1531 14Th St NW Zero Discharge
(Categorical)
0
Thyssenkrupp
Aerospace, dba TMX
Aerospace
General Type 5002 D Street NW,
Suite 104
Major Discharge
Authorization
10,000
Waste Management Inc.
- South Sound
Container Washing 701 2Nd Street NW Major Discharge
Authorization
5,000
WCR Inc. Metal Finishing - Cfr
433
3126 C Street Ne Permit 21,000
Fleet Clean Pressure Washing 104 49th Street NW Major Discharge
Authorization
1,000
New Type Laboratory
Wastewater
3205 C Street NE Letter of
Authorization
100
Auburn Mechanical Manufacturing 22 42nd Street NW 19,000
King County Industrial Waste staff have indicated that the overall volume of industrial waste flows has
generally been consistent and primarily concentrated during working hours during weekdays. While the
City does not limit or prescribe the number or types of industrial businesses in the City, it is assumed that
collectively, the amount and quality of future industrial wastewater flows from those businesses will be
similar to existing flows.
City Engineering staff manage commercial restaurant dischargers in accordance with ACC Chapter 13.22.
Maintenance activities related to commercial pretreatment facilities, specifically the City’s FOG Reduction
Program, are discussed in Chapter 6, Section 6.3.
Page 63 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-14
4.7 Water Reclamation and Reuse
Reclaimed water is wastewater that has been treated to a level at which it can be used safely and
effectively for beneficial, non-drinking water purposes. The City does not currently use reclaimed water
because there are no nearby sources or transmission pipelines for reclaimed water. While immediate
opportunities are not available, the City is in favor of the concept of water reuse, and as technology,
economics, and/or the development of infrastructure makes such use feasible, the City would encourage
its use. The City participates in the King County reclaimed water program, which completed a Reclaimed
Water Comprehensive Plan in 2012, and includes a completed King County Water Reclamation Evaluation
Checklist, a copy of which is included as Appendix E, as part of the Water System Plan (WSP).
This section summarizes the regulatory framework surrounding the generation and use of reclaimed
water, potential reclaimed water sources and users, and City planning for near-term reclaimed water use
within the City SSSA.
4.7.1 Regulatory Framework
The state has identified reclaimed water as an important water resource management strategy that offers
benefits related to potable water supply, wastewater management, and environmental enhancement.
State law supports the beneficial reuse of reclaimed water for consumptive applications (such as irrigation,
commercial and industrial process use, etc.) and non-consumptive purposes (including groundwater
recharge via surface percolation or direct injection, wetland enhancement, and stream flow
augmentation).
DOH and Ecology have developed standards that guide the planning and development of reclaimed water
projects and systems. These standards, summarized in the jointly published Water Reclamation and Reuse
Standards (September 1997), describe the allowable beneficial uses of reclaimed water and the required
levels of treatment appropriate for each use. The Standards establish four classes of reclaimed water; A, B,
C, and D. Class A reclaimed water represents the highest level of treatment, referring to water that is
oxidized, coagulated, filtered, and disinfected to certain standards. Of all levels of reclaimed water, Class A
is acceptable for the widest range of uses. Additional clarification and guidance related to the design of
reclaimed water facilities are provided in Ecology’s Criteria for Sewage Works Design (Ecology, 2008).
Ecology prepared draft reclaimed water regulations (WAC 173-219) to further define and provide
guidance for reclaimed water facilities and uses. The rule-making process began with legislation in 2006
that amended the Reclaimed Water Use Act, Revised Code of Washington (RCW) Chapter 90.46, and
directed Ecology to coordinate with DOH, form a stakeholder Rule Advisory Committee, and adopt a
comprehensive rule for reclaimed water use by December 2010. The overall goal was to develop a
Reclaimed Water Program through rules, guidance, and statutes that runs smoothly and consistently while
protecting public health and the environment. Several drafts of the proposed rule were made available for
review by stakeholders, and significant comments were submitted, but the rule-making process was
suspended by executive order before it could be completed. Ecology reactivated the rulemaking process
in June 2014. The revised reclaimed water rule was incorporated into WAC 173-219 in 2018.
Page 64 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-15
4.7.2 Potential Reclaimed Water Sources
This section identifies potential sources of reclaimed water in the vicinity of the City SSSA.
Receiving water from any of the existing treatment plants would involve the construction of long
(7-15 mile) pipelines since none of them are located in or immediately adjacent to Auburn. Also, since
reclaimed water cannot be mixed with potable water, all of the options listed below would also require
the installation of a separate reclaimed water distribution system to convey that water directly to potential
users.
4.7.2.1 King County
City of Auburn wastewater is treated at King County’s South Treatment Plant, located in Renton,
approximately 13 miles north of Auburn. Although South Plant does generate reclaimed water for onsite
uses, nearby irrigation, and habitat restoration, there are no existing or planned transmission lines south
to the City of Auburn. The status of current King County reclaimed water comprehensive planning is
discussed in Section 4.6.3.
4.7.2.2 City of Sumner
The City of Sumner wastewater treatment plant is located approximately 8 miles south of the city of
Auburn. Sumner does not currently produce reclaimed water for offsite uses, but the City will continue to
monitor Sumner’s plans for reclaimed water use to determine if transmission of reclaimed water from
Sumner to the City is feasible and cost-effective for potential users within the City SSSA.
4.7.2.3 Lakehaven Water and Sewer District
LWSD owns and operates two wastewater treatment plants, the Lakota and Redondo facilities, located
approximately seven miles to the west and northwest of the City. LWSD does not currently produce
reclaimed water but has evaluated the feasibility of producing reclaimed water for landscape irrigation
and groundwater recharge. Because the Redondo facility site is limited with respect to expansion area,
reclaimed water improvements, if implemented, would likely occur at the Lakota facility. The City will
continue to monitor LWSD planning efforts with respect to reclaimed water production and reuse.
4.7.2.4 City of Auburn
Although the City does not operate a centralized wastewater treatment plant, a smaller, satellite reclaimed
water production facility could feasibly be installed at one of the City’s pump stations. A satellite facility
could be used to capture wastewater flows from a specific basin, and then generate reclaimed water for
uses nearby. While a range of treatment approaches may be employed at a satellite facility, many utilities
are implementing membrane bioreactor (MBR) technology in these types of applications, because of the
small footprint required relative to other, more conventional forms of wastewater treatment. Solids
generated at the satellite facility would be returned to the collection system and conveyed to
King County’s South Treatment Plant. While currently, the capital investment for such a facility is
prohibitive as technology and cost effectiveness improves, such a facility would be considered.
Page 65 of 1163
CHAPTER 4 - DESCRIPTION OF EXISTING SYSTEM SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 4-16
4.7.3 Potential Reclaimed Water Users
Starting in 2009, King County began development of a Reclaimed Water Comprehensive Plan to evaluate
expansion of its existing reclaimed water program over a 30-year period. The City of Auburn supported
the County’s planning process by providing non-potable water use data by specific parcel. City staff and
elected officials also participated in reclaimed water workshops held at key points in the County planning
process. Although the Reclaimed Water Comprehensive Plan was not completed, some of the concepts
evaluated during that process will inform the development of a plan for reclaimed water as part of
King County’s Clean Water Plan. The most likely reclaimed water customers would be in the irrigation
class, as noted in the WSP.
4.7.4 Reclaimed Water Summary
The City of Auburn is not planning any specific capital improvements related to producing and/or
conveying reclaimed water for the following reasons:
King County and other nearby treatment plant sources of reclaimed water are unlikely to be
developed for use within the City SSSA in the near term.
The City currently has adequate water supply in the near term and the need for offsetting potable
water demands is low at this time.
The capital costs related to design, construction, and permitting of a reclaimed water production
facility are large relative to the benefit at this time.
The City acknowledges the value that a reclaimed water program might offer in the future, especially if a
nearby reclaimed water source with associated conveyance piping is extended to the City’s SSSA. The City
will continue to monitor reclaimed water planning by nearby purveyors, the adequacy of the City’s water
rights to meet current and future potable water demand, and the industrial user base, or other significant
user to evaluate whether reclaimed water is a feasible and economically viable alternative. City staff will
also continue to participate in King County’s Clean Water Plan to promote the City’s interests in County
policies, criteria, and implementation strategies.
Page 66 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-1
CHAPTER 5 WASTEWATER SYSTEM ANALYSIS
5.1 Introduction
The City customer base continues to increase through system growth by development, redevelopment,
and connection of on-site system properties that were not previously connected to the system. With the
additional customers served, some of the City’s sewer infrastructure may reach its conveyance capacity.
This chapter presents an evaluation of the available capacity of the existing system to convey current and
future projected sewer flows and develops appropriate CIP to address any deficiencies. Using the City’s
updated and re-calibrated collection system hydraulic model, major pipes and lift stations in the collection
system were evaluated using the established capacity criteria. The modeled collection system consists
primarily of large gravity sewers which represents a skeletonized version that includes all key components
of the system. The modeling focused on the key conveyance infrastructure, neglecting smaller collector
pipes which generally have adequate capacity to convey the flow. This approach reduces the modeling
computational effort, while providing necessary conveyance information. Additional details on the
hydraulic model update and calibration can be found in Technical Memorandum (TM) 1 - Model
Calibration Report (Appendix B).
The collection system was evaluated for two planning scenarios:
Existing - Based on 2020-2021 flow monitor data.
Future year 2044 - Based on traffic area zone (TAZ) projected population and employment developed
from Puget Sound Regional Council projections by Leland Consulting Group.1 2
This chapter presents potential deficiencies under both existing and future conditions and includes an I/I
analysis.
5.2 Design and Performance Criteria
Defining performance criteria and key conveyance events is a critical step in the master planning process
because it sets evaluation metrics for the collection system infrastructure’s ability to meet service goals set
by the City. It is important to differentiate performance criteria from design criteria when judging the
performance of collection system infrastructure:
Design criteria establish the standards for designing and constructing new sewers and lift stations.
Performance criteria establish the standards that are used to analyze adequacy of existing facilities
and to trigger infrastructure improvements meeting design criteria.
The collection system’s function is to convey sanitary flows from residential and commercial customers to
King County’s trunk system that takes flows to the King County South Treatment Plant. However,
additional wet weather flow from rain and groundwater sources may enter the system that also need to
1 Auburn Comprehensive Plan: Industry Composition, Location, and Work from Home Memo | Draft, 10/6/2023,
Leland Consulting Group.
2 Auburn Comprehensive Plan: TAZ Allocations under No Action and Preferred Land Use Scenarios | Draft, 10/6/2023, Leland Consulting Group.
Page 67 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-2
be conveyed. Wet weather flows vary with storm size, intensity, and timing. For planning purposes, a
design storm is simulated in the hydraulic model, which is used as the evaluation point for the modeled
infrastructure. The following sections describe the City’s established design criteria and performance
criteria used in this analysis.
5.2.1 Design Storm
Design storms are simulated rainfall events used to analyze the performance of a collection system under
peak flows and have a specific recurrence interval and rainfall duration. The National Oceanic and
Atmospheric Administration publishes isopluvial (rainfall contour) maps that can be used to approximate
the total rainfall depth for a range of design storms. Additionally, an appropriate hydrograph for the
storm is required to distribute the rain through the design period. Finally antecedent conditions should be
considered, as Pacific Northwest storms tend to span multiple days which can lead to saturated ground
conditions increasing runoff. The best approach to address hydrograph and antecedent conditions is to
base analysis on a historical precedent. The City has selected a weather event from 1996 with a recurrence
interval of 20 years for the design storm based on an analysis done for the 2016 Comprehensive Sewer
Plan. At that time, a long-term simulation was done with rainfall data from January 1, 1949 through
December 31,2012 to identify 20-year peak flow frequency. The third largest event appeared to have a 25-
year recurrence and fourth largest appeared to have an 18-year recurrence, with both events producing
similar peak RDII flows of 27.19 mgd and 27.03 mgd, respectively. Therefore, the third largest event that
occurred on February 5, 1996 was selected to represent the 20-year design storm.
Figure 5.1 shows the historical design storm used for the capacity analysis. A period of rain events
occurred over five days. The storm peak lasts 24 hours at the end of the event, with a peak rainfall
intensity of 0.29 inches per hour and a 24-hour volume of 2.39 inches.
Figure 5.1 20 Year Design Storm
Page 68 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-3
5.2.2 Climate Risk
As described in the previous section, the performance criteria for this master planning effort are evaluated
using historical events and by performing statistical analysis to determine the likelihood of recurrence.
This is standard practice but does not incorporate expected local and regional climate changes in the
future. Over the coming decades, it is expected that the Pacific Northwest will see extreme precipitation
events with increasing frequency.
To help plan for this future, this master planning effort evaluated regionally-downscaled climate model
results from the University of Washington Climate Impacts Group (CIG). CIG has statistically downscaled
an ensemble of global climate models to a 12-km grid and provides expected increases in 1-hour and
24-hour precipitation for various recurrence intervals. These values were used to determine the expected
percent change for the 20-year design storm characteristics (peak rainfall intensity of 0.29 inches per hour
and a 24-hour volume of 2.39 inches) for the future year being evaluated (2044) as well as the end of the
century. Since CIG averages model results over a 30-year period, 2044 is represented by the 2030 - 2059
model ensemble results and the end of the century is represented by 2070 - 2099. Table 5.1 and 5.2 show
the ensemble average, maximum and minimum results for both time periods.
Table 5.1 Summary of Potential Future Characteristics for the Design Storm, 2030 - 2059
Parameter Ensemble Average Ensemble Maximum Ensemble Minimum
Peak Intensity (inches per hour) 0.36 (+24%) 0.46 (+58%) 0.26 (-10%)
24-hr Volume (inches) 3.85 (+17%) 5.07 (+54%) 2.89 (-12%)
Table 5.2 Summary of Potential Future Characteristics for the Design Storm, 2079 - 2099
Parameter Ensemble Average Ensemble Maximum Ensemble Minimum
Peak Intensity (inches per hour) 0.42 (+45%) 0.59 (+103%) 0.30 (+2%)
24-hr Volume (inches) 4.24 (+29%) 5.76 (+75%) 3.39 (3%)
These results were used in the existing models to analyze the adequacy of existing facilities and can be
used to set future design criteria. Climate change modeling will continue to advance, with new techniques
and improved computer processing allowing for more robust projections in the future. In 2021, the
Intergovernmental Panel on Climate Change released the most recent major update to the global
Coupled Model Intercomparison Project. CIG is currently working to downscale results from those models
and compare them to the previous generation used in this study. Following CIG’s work, it is recommended
that the City review those results to determine if further changes to future design criteria are required.
5.2.3 Conveyance System
It is common practice to use a diameter-based flow depth criteria for pipes both when evaluating exiting
sewers and designing new sewers. The depth/diameter (d/D) ratio is defined as the depth (d) of flow in a
pipe divided by the pipe’s diameter (D). For the conveyance system, the design criteria and performance
criteria are outlined below and shown in Figure 5.2:
Performance Criteria: During PWWF for the design storm, water levels should not surcharge pipes
(maximum d/D of 1.0). Pipes that surcharged and exceeded a d/D of 1 and were less than 6 feet from
the ground surface in manholes were considered deficient. In Figure 5.2, the hydraulic grade line (HGL)
is surcharged and therefore would be considered deficient.
Page 69 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-4
Design Criteria: Sewers shall be designed to not surcharge or flow at a maximum d/D of 1.0 at peak
flow rates for both existing and build-out conditions.
Figure 5.2 Design and Performance HGL Criteria
5.2.4 Lift Stations and Force Mains
Any new lift station recommendations will need to follow Washington State Department of Ecology’s
Criteria for Sewage Works Design (Orange Book) recommendations for lift stations and force main
construction to meet Ecology requirements. Ecology’s requirements are outlined below:
The firm capacity of a pumping station shall be equal to or greater than the peak hourly design flow.
Because mechanical and electrical equipment is typically designed for a 20-year life, it is
recommended that the peak design flow be based on a 20-year forecast or greater.
The number of pumps selected shall allow the station to provide the peak design flow with the largest
pump out of service.
The station shall be designed to remain fully operational during the 100-year event.
Pumps should be designed for pumping sewage and capable of passing solids at least 3 inches in
diameter. Pump suction and discharge should be 4 inches or greater.
The City’s performance criteria requirements for existing lift stations include firm capacity (i.e., capacity
with largest pump out of service) and force main velocities. According to Washington’s Orange Book, firm
lift capacity shall be provided to manage the design storm peak hour flow, also known as the PWWF, from
the lift station’s tributary area with the largest pump out of service. Therefore, the City’s lift stations should
have sufficient firm capacity to pump the PWWF during the design storm.
The evaluation of existing force mains is based on recommendations in the Orange Book for a maximum
pipe velocity of 8 feet per second or less during the PWWF for the design storm. The design of new force
mains should keep the minimum velocity above 2 feet per second to minimize solids settling.
Page 70 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-5
5.3 Future Conditions Flow Projection
The 2044 scenario flow projection was based on the existing condition flows developed in Appendix B,
TM 1 - Model Calibration Report Section 1.6.
5.3.1 Future Conditions Average Dry Weather Flow Development
TAZ blocks provided estimates of existing (2021) and future (2044) units of employment, single family,
multi family, housing units, and population. These TAZ blocks were spatially joined to the modeled
catchment layer to determine the units in the City’s collection system. Figure 5.3 outlines the TAZ blocks
within the City’s service area.
Table 5.3 outlines the TAZ unit type for 2021 and 2044. The unit type increase was used to calculate a
scaling factor, or the unit of increase between the 2021 and 2044 units. The scaling factor was used to
project the future ADWF for every catchment in the collection system. The project sanitary flow summary
by TAZ type are shown in Table 5.3.
Table 5.3 Flow Projections Summary
TAZ Type 2021
Total Units
2044
Total Units
Scaling
Factor
2021 Sanitary Flow
(mgd)
2044 Sanitary Flow
(mgd)
Single Family 14,841 21,631 1.46 3.03 4.50
Multi-Family 16,985 20,578 1.21 0.90 1.16
Employment 47,738 65,674 1.38 4.49 6.25
Housing Unit 31,457 42,219 - - -
Population 86,149 114,056 - - -
Total - - - 8.45 11.92
Notes:
mgd - million gallons per day.
5.3.2 Future Conditions Wet Weather Flow Assumptions
Figure 5.4 identifies the portion of the collection system that is currently developed with available sewer in
yellow, the portion that likely will not be developed is in red, and the orange section identifies areas that
can be developed or are not currently connected to a sewer. The areas shown that likely cannot be
developed are due to steep slopes greater than 40 percent grade or large wetlands occupying a large
portion of the area. There are likely smaller areas within the system that similarly cannot be developed,
but are not easily captured in the larger planning effort. It was assumed that all developable parcels would
be developed and connected for the 2044 scenario in the model including those with on-site systems,
contributing a WWF I/I component from the contributing area. It was assumed that the I/I of future
sewered areas would be 1,500 gallons per acre per day (gpad) during the design storm. This I/I rate is
slightly higher than the King County target value of 1,100 gpad, providing a level of conservatism in
projecting future peak flows, and closer to the actual level of I/I into the system. The hydrologic model
components Model A and rainfall derived infiltration (RDI) were set at 0.65 percent and 2.58 percent
respectively, to represent such an I/I rate. Figure 5.5 below shows a detailed map of the City’s existing and
future sewer system, including future pump stations and mains.
Page 71 of 1163
EASTVALLEYSUMNERTAPPS122NDLAKELANDHILLSLAKE
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Last Revised: May 06, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
0 10.5
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.3 TAZ Data
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
TAZ (with TAZ Number)
City of Auburn Service Area
Roads
Parcels
Sewer Basins
Auburn Way South Sewer
Basin
Lea Hill Sewer Basin
South Hill Sewer Basin
Valley Sewer Basin
West Hill Sewer Basin
18
18
167
167
Page 72 of 1163
Last Revised: September 05, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
0 0.650.33
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.4 Future Contributing Areas
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Undevelopable*
Developable/Infill
Developed with Available
Sewer
Parks/Open Space
City of Auburn Service Area
18
18
167
167
*likely unbuildable based on steep slopes or wetlands,
smaller undevelopable areas may not be shown.
Page 73 of 1163
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Lake Tapps
Lake Meridian
S 305TH ST
2ND ST SE
S STAR LAKE RD
152ND AVE SES 272ND ST
S 298TH ST
1ST AVE E AUBURN AVE NEOUTLETCOLLECTIONDRSW6TH ST NE
4TH AVE SE
S 380TH ST
54TH ST SE
SE 299TH ST
BUTTE AVESE 290TH ST
SE 282ND ST
58TH AVE SSE283RDPLLA
K
E
L
A
N
D
H
I
L
L
S
W
A
Y
S
EPACIFIC AVE S45TH PL S127THPLSEM ST SE54TH AVE S14TH ST NE
OLIVE
AVE
SEMILLPONDDRSER ST NE110TH AVE SEM ST NES 318TH ST41STAVES S E 2 78TH ST
123RD PL SE137THAVESEB ST SESE 275TH ST
51ST ST
N
E
S
2
9
7
T
H
P
L
S 368TH ST
2ND AVE SW 116TH AVE SESE 278TH PL120TH AVE SE55TH AVE SPIKE ST NES
3
0
0
T
H
P
L
50TH
ST
SE
S 2 9 4 T H S T
S 282ND ST
SE 272ND ST
BENNETTAVESE133RDAVESEF ST SEACAD
E
M
Y
D
R
S
EHEMLOCK ST SES 292ND ST
57THPLSSE 277TH PL
W ST NW57TH AVE SL ST SE112THPLSE124TH AVE SE22ND ST NE
S 296TH ST
55THPLS46TH P
L
S 64TH AVE SS 300TH ST
146TH AVE SE23RD ST SE
36TH ST SE
COUNTY LINE RD E 132ND AVE SESE 280THST
NATHANAVESESE 310TH ST
19TH PL SE19TH DR NE
E MAIN ST85TH AVE S43RD ST NE
SE282NDWAY
3RD ST SE
NATHANLOOPSER ST NW
31ST ST NE
26TH ST NE
10TH ST SE
5
7
T
H
D
R
S
E
W MAIN ST 128THPLSEELLINGSON RD A ST NET
ERRAC
E
DR
NW61ST AVE SSE 276TH PL
S 308TH ST
S 331ST S
T
S K Y W A Y L N24THSTNW
5TH
A
V
E
N
W 105TH AVE SE2ND ST NW
28TH ST SE 111TH PL SESE 276TH ST
GINKGOSTSE44TH AVE SWASHINGTON BLVDS 336TH ST 130TH AVE SECHICAGO AVEH ST SE37TH ST NE
S 316TH ST
SE 298TH PL
J ST NEAUBURN WAY N152ND WAY
SE
S 360TH ST
S 352ND ST
S 378TH ST
S 364TH ST
S 376TH ST
29TH ST SE
S
C
E
N
I
C
D
R
S
EJSTSE1ST ST NE
3RD ST NE
S 338TH ST
ALPINESTSE42ND AVE S144TH AVE SES 384TH ST
12TH ST NE
3RD ST SW
S 356TH ST
SE 279TH PL
50TH AVE SS E 3 1 8 TH STSE 308TH ST
WEST VALLEY HWY S
S 340TH ST
SE 316TH PL
S 349TH ST
SE 272ND PL
A ST SE151ST AVE SEMILWAUKEE BLVD SS DIVISION ST
S E 3 18TH WAY
3RD AVE SW
2ND AVE S 135THP
L
S
E
S 342ND ST
SE 270TH ST
K ST SEPEASLEYCANYONWAYSBRIDGET AVE SER ST SESKINNER RD NQUINCYAVESE153RD AVE SES 372ND ST
6TH ST SE 109THAVESE4TH ST SE 135TH AVE SEC
S
T
S
E
MILLPOND LO O P S E
SE 312TH ST
33RD ST SED ST NEMILWAUKEE BLVD NSE 317TH S T45TH AVE SE ST NEBOUNDARY BLVD
5TH AVE SW K ST NESE 330TH WAY
RIVERWALKDRSEFOREST
RI
D
GE
D
R
SECELERY AVE3RD AVE N
4TH AVE N
5TH AVE N
2ND ST NE51STAVESS PEASLEY
CANYON
RD112THAVESE51STPLSSE 296TH WAY
15TH ST SW
TACOMA BLVD NMILWAUKEE AVE SFRONTAGE RD NS 277TH ST
SE 274TH ST
ALGONA BLVD NALGONA BLVD SMAIN
ST
S E 3 76TH ST
3 7 T H S T N W
SE 299TH PL
A ST SWSEKENT-KANGLEYRD
12TH ST SE
SEATTLE BLVD S72NDAVESD ST SE11TH AVE N
S 362ND ST
A
U
B
U
R
N
-
E
N
UM
C
L
AW
R
D
S
E
SE 364TH ST
3 5 TH WAYSE
3 2 N D S T S E
8TH ST SE
17TH ST SE
28TH ST NE
S 280TH ST
YAKIMA AVE S10TH ST NE
27TH ST SE
26TH ST SE
56TH ST SE
SE
H
U
S
K
Y
W
A
Y
5TH AVE S
3RD
A
V
E
S
5TH ST SE
KNICKERBOCKER DR
SE 323RD PL
SE
2
9
5
T
H
S
T
B ST NW6TH AVE N
S 313TH S T
10TH AVE N HEMLOCKDRSE44TH ST NW
107THAVESE53RD AVE S147THAVESE29TH ST NW
4TH AVE S
6TH AVE SW HIGHLANDDRSE49TH AVE S43RD AVE S8TH AVE N
SE 293RD ST
O ST NE9TH AVE N SED IAM ONDDR53RD ST SE
7TH ST SE
CHICAGO BLVD SS 324TH ST I ST NE52ND AVE SN ST NET ST SE55TH ST SE
4TH AVE SW MILWAUKEE AVE N21ST ST SE
3RD AVE NW59TH AVE S25TH ST SE
30TH ST SE
31ST ST SES 301ST DRPACIFIC AVE N4TH ST NE
8TH ST NE
S 279TH ST
TACOMA BLVD S
SE 320TH ST
56TH AVE SMILITARY RD S32ND PL NE
32ND ST NE
SE 316TH ST
4 9 T H S T N E 50TH ST
N
E
2ND AVE N
S 288TH ST
SE271STST
H
A
R
V
E
Y
R
D
N
E KE
NT
B
L
A
C
K
D
IA
M
O
N
D
R
D
SE 288TH ST
DOGWOODDRSESE 369TH ST46TH AVE S15TH ST NW
3RD AVE SE H ST NETACOMA BLVDVALENTINE AVE48TH AVE SC ST NW30TH ST NE
S 290TH ST
DOGWOOD ST SE156TH AVE SE15TH ST NE
SE 281ST ST
SR 167E V E RG REEN WAY SERAMP37TH
W
A
Y
S
E SE
A
U
B
U
R
N-
BL
A
CK
DI
A
M
O
N
D
R
D
42ND ST NE
HEATHER AVE SEI
ST
NW
20TH ST SE
SE LAKE HOLM RD
IRENE AVE SE37TH ST SE
OUTLET COLLECTION WAY SW
SE 289TH S T
SE 294TH ST
V ST NWKATHERINE AVE SESE 304TH ST
SE 286TH ST
51STSTSEWARD AVE SESE 326TH PL
16TH ST NE
17TH ST NE
SE 324TH ST65THAVES
MOUNTAIN VIEW DRFRONTAGERDSSE 372ND ST148TH LN SEHAWTHORNE AVE SWESTERN AVEG ST SEWESTVALLEYHWYPIKE ST NW141ST AVE SESE 294TH PL
22ND ST SE
AUBURN WAY S 148THAVESERANDALL AVE SE142NDAVE
S
E
A A B Y D R 118TH AVE SE2 4 T H S T S EHICRESTDR42ND ST NW
146THPLSEMAPLE ST104TH AVE SEH ST NW21ST ST NE
WHITERIVERDRLUND RD10
4
T
HP
L
S
E102ND AVE
SE
SE 290TH PL
S364THPL
SE 344TH ST
SE 287TH ST
SE 301ST ST
47TH ST SE58THPLSA ST NWS 321ST ST
C ST SW114TH AVE SEL E A H IL L R D S E
141ST PL SESE
368T
H
PL
1ST AVE NWEST VALLEY HWY N
SE 284TH ST
K
E
R
S
E
Y
WA
Y
S
E 108TH AVE SE138TH PL SE68TH AVE SU ST NW148THWAYSEEASTVALLEYHWYS105TH PL
SEHOWARDRDC ST NES272NDWAYS
E
L
A
K
E
M
O
N
E
Y
SM
I
T
H
R
D
G
R
EE
N
RIV
E
R
R
D78TH AVE
S140THAVESERIVERV
IEW
DR
NE
SE312TH
WAY
CLAY STS 287TH ST
154TH AVE SEDSTNWEMERALD DOWNS DRFOSTER AVE SEORAVETZ RD SE129TH
W
A
Y
S
E
SE 326TH ST
56THPLS M ST NW41ST ST SEGREENRIVERRDSESR 18
SE GREEN VALLEY RD
STUCK RIVER DR
500'
400'
300'400'300'200'
5
00
'
4
0
0
'500'4
0
0
'
300'
200'
100'
4
0
0
'
3
0
0
'
2
0
0
'50
0
'400'
3
0
0
'300'200'400'300'400'300'
40
0
'
300'
20
0
'400'300'200'3
0
0
'
2
0
0
'
500'
40
0
'400'300'400'300'100'100'300'
20
0
'100'100'100'300'400'100'100'200'
100'
1
0
0
'200'300'300'300'20
0
'600'500'300'600'500'600'600'600'
600'600'600'6
0
0
'
5
0
0
'
4
0
0
'400'4
0
0
'500'
500'500'500'500'500'400'300'300'300'
300'300'300'4
0
0
'
400'400'3
0
0
'
400'
400
'
4
0
0
'400'300'400'400'400'400'400'400'400'
4
00
'400'300'300'400'40
0
'200'300'300'300'300'300'300'300'200'100'100'100'100'100'100'600'600'6
0
0
'500'400'
400'
4
0
0
'400'400'4
0
0
'400'400'400'4
0
0
'
4
0
0
'
30
0
'300'300'300'300'
200'
200'
200'
20
0
'
100'
100'
10
0
'100'100'100'100'
100'100'
100'100'100'100'100'100'
100'100'100'100'100'100'100'AUBURN GOLF
COURSE LS
ISSAC EVANS
PARK LS
AUBURN
JUSTICE
CENTER LS
AUBURN
JAIL LS
AREA 19 LS
TERRACE
VIEW LS
F STREET LS
RIVERSIDE LS
R STREET LS
PEASLEY
RIDGE LS
RAINIER
RIDGE LS
VALLEY
MEADOWS LS
22ND
STREET LS
8TH STREET LS
LAKELAND LS
NORTH
TAPPS LS
SAFEWAY LS
VERDANA LS
AUBURN 40 LS
DOGWOOD LS
GREEN RIVER
SIPHON LS
AUBURN VALLEY
HUMANE
SOCIETY LS
ELLINGSON
ROAD LS
LS
PROMENADE LS
EAST MAIN
STUCK RIVER
QUARY
SE 293RD ST
112TH AVE SE
Hudson PS
Last Revised: June 11, 2024 [ENTER PROJECT WISE PATH NAME TO MXD] For Example:pw://Carollo/Documents/Client/CA/ClientName/10265A00/Data/GIS/Figure_01_01.aprxO
0 0.60.3
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI, BING Imagery
Legend
"=)City of Auburn Future Pump
Station
Future Sewer LPFM Mains
Future Sewer Force Mains
Future Sewer Gravity Mains
Existing Sewer Pumps
"=)City of Auburn
"=)King County
"=)Private
Existing Sewer Mains by Diameter
8" or Smaller
#10" - 16"
18" or Larger
King County Interceptors
City of Auburn Service Area
Parcels
Twenty Foot Contours
Hundred foot Index Contours
Waterbodies
Figure 5.5 Existing and Future Sewer System
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Page 74 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-9
5.4 Gravity Collection System Deficiencies
A capacity analysis of the modeled collection system was performed using the City's calibrated hydraulic
model, the design storm, and referring to the above outlined evaluation criteria in Section 5.2. The
capacity analysis entailed identifying areas in the sewer system where the performance criteria or the
capacity of lift stations was exceeded.
5.4.1 Key Causes of Deficiencies
The calibrated hydraulic model was run with the design storm to determine areas that may be triggering
potential capacity deficiencies based on the system performance criteria. The key causes triggering
deficiencies in the City’s collection system included:
Adverse slopes and misaligned inverts.
Pipe restrictions (a single or few smaller diameter pipes between larger diameter pipes).
Pipe diameter too small or at too flat a slope to convey the PWWF.
5.4.2 Existing System Potential Deficiencies
For the existing planning scenario, the current PWWF was routed through the hydraulic model. The peak
HGL in manholes and gravity pipelines were compared to the established performance criteria. In general,
the modeled collection system has sufficient capacity to convey existing flows during the design storm.
The existing deficiencies are relatively minor; their locations are shown on Figure 5.6 in red and yellow.
Figure 5.7 also identifies shallow manholes (manholes with a depth less than 6 feet). A total of 7,428 feet
of pipe is surcharged, 1 manhole (MH) may flood, and 47 MHs are within 6 feet of the rim during the
design storm.
5.4.3 2044 Potential System Deficiencies
For the 2044 planning scenario, additional contributing areas, and additional dry weather flow (DWF) were
added to the model based on the projected growth identified in Section 5.3. In general, system HGL
increases with additional flows. A total of 16,842 feet of piping may surcharge during PWWF, 3 MH are
potentially flooding and 64 MHs are within 6 feet of the rim. The 2044 deficiencies are identified in red
and yellow on Figure 5.7. The 2044 deficiencies with the climate change design storm are shown in red
and yellow on Figure 5.8. The climate change design storm leads to 29,538 feet of surcharging pipe, 6 MH
potentially flooding and 76 MHs within 6 feet of the rim.
Page 75 of 1163
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LLSL
A
K
E
T
A
P
P
S
SUMNERTAPPSWESTVALLEYEDWARDS
STATE ROUTE
167
Lake Tapps
Lake Meridian
132ND AVE SESE LAKE HOLM RD
M ST SESE 248TH ST
W MEEKER ST
SE 256TH ST
AUBURNWAYNWESTVALLEYHWYSA ST SE116TH AVE SEKENT-DES MOINES RD S
51ST AVE S112TH AVE SES 277TH ST
B ST NWS
P
E
AS
L
EYCANYONRDMILITARY RD S124TH AVE SESEAUBURN-BLACKDIAMONDRD104THAVESESE K
E
N
T
-
K
A
N
G
L
E
Y
R
D
SE 304TH ST
AUBURN WAY SC ST SWWEST VALLEY HWY NK
E
R
S
E
Y
WA
Y
SE 108THAVESEG
R
E
E
N
R
I
V
E
R
RDFRAGERRDSSR 167GREENRIVERRDSESR 18
SE GREEN VALLEY RD
STUCK RIVER DR
Last Revised: May 06, 2024 [ENTER PROJECT WISE PATH NAME TO MXD] For Example:pw://Carollo/Documents/Client/CA/ClientName/10265A00/Data/GIS/Figure_01_01.aprxO
0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.6 Existing System Deficiencies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Deficient Manholes
Flooding Manhole
6 Feet from Rim
Pipe not Modeled
Gravity Main
Deficient Modeled Pipe
(d/D>1)
Modeled Pipe
Shallow Manholes
Force Main
King County Interceptor
"=)Sewer Pump Station
City of Auburn Service
Area
Roads
Waterbodies
18
18
167
167
Page 76 of 1163
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LLSL
A
K
E
T
A
P
P
S
SUMNERTAPPSWESTVALLEYEDWARDS
STATE ROUTE
167
Lake Tapps
Lake Meridian
132ND AVE SESE LAKE HOLM RD
M ST SESE 248TH ST
W MEEKER ST
SE 256TH ST
AUBURNWAYNWESTVALLEYHWYSA ST SE116TH AVE SEKENT-DES MOINES RD S
51ST AVE S112TH AVE SES 277TH ST
B ST NWS
P
E
AS
L
EYCANYONRDMILITARY RD S124TH AVE SESEAUBURN-BLACKDIAMONDRD104THAVESESE K
E
N
T
-
K
A
N
G
L
E
Y
R
D
SE 304TH ST
AUBURN WAY SC ST SWWEST VALLEY HWY NK
E
R
S
E
Y
WA
Y
SE 108THAVESEG
R
E
E
N
R
I
V
E
R
RDFRAGERRDSSR 167GREENRIVERRDSESR 18
SE GREEN VALLEY RD
STUCK RIVER DR
Last Revised: May 06, 2024 [ENTER PROJECT WISE PATH NAME TO MXD] For Example:pw://Carollo/Documents/Client/CA/ClientName/10265A00/Data/GIS/Figure_01_01.aprxO
0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.7 2044 System Deficiencies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
"=)Sewer Pump Station
Deficient Manholes
Flooding Manhole
6 Feet from Rim
Pipe not Modeled
Gravity Main
Deficient Modeled Pipe
(d/D>1)
Modeled Pipe
Shallow Manholes
Force Main
City of Auburn Service
Area
King County Interceptor
Waterbodies
Roads
18
18
167
167
Page 77 of 1163
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LLSL
A
K
E
T
A
P
P
S
SUMNERTAPPSWESTVALLEYEDWARDS
STATE ROUTE
167
Lake Tapps
Lake Meridian
132ND AVE SESE LAKE HOLM RD
M ST SESE 248TH ST
W MEEKER ST
SE 256TH ST
AUBURNWAYNWESTVALLEYHWYSA ST SE116TH AVE SEKENT-DES MOINES RD S
51ST AVE S112TH AVE SES 277TH ST
B ST NWS
P
E
AS
L
EYCANYONRDMILITARY RD S124TH AVE SESEAUBURN-BLACKDIAMONDRD104THAVESESE K
E
N
T
-
K
A
N
G
L
E
Y
R
D
SE 304TH ST
AUBURN WAY SC ST SWWEST VALLEY HWY NK
E
R
S
E
Y
WA
Y
SE 108THAVESEG
R
E
E
N
R
I
V
E
R
RDFRAGERRDSSR 167GREENRIVERRDSESR 18
SE GREEN VALLEY RD
STUCK RIVER DR
Last Revised: May 06, 2024 [ENTER PROJECT WISE PATH NAME TO MXD] For Example:pw://Carollo/Documents/Client/CA/ClientName/10265A00/Data/GIS/Figure_01_01.aprxO
0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.8 2044 Climate Change Design Storm System Deficiencies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
"=)Sewer Pump Station
Deficient Manholes
Flooding Manhole
6 Feet from Rim
Pipe not Modeled
Gravity Main
Deficient Modeled Pipe
(d/D>1)
Modeled Pipe
Shallow Manholes
Force Main
City of Auburn Service
Area
King County Interceptor
Waterbodies
Roads
18
18
167
167
Page 78 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-13
5.5 Lift Station and Force Main Evaluation
Ensuring lift stations have adequate capacity to convey PWWFs is important for preventing sewage
overflows at or near lift stations. In accordance with the established performance criteria, the City’s
existing modeled lift stations were evaluated to determine if each one has the available capacity to convey
existing and future PWWFs with the largest pump out of service (i.e., its firm capacity). If a lift station has
inadequate capacity to pump the PWWFs, the water level in the wet well may rise to the overflow point,
spilling sewage.
The City’s hydraulic model includes 14 of the 17 City owned lift stations located in the collection system.
The estimated current and future PWWFs were compared to the 14 lift stations’ firm capacities. Lift
stations with an influent PWWF above the existing firm capacity were flagged as deficient. Table 5.4
summarizes the results of the lift station evaluation. Rainier Ridge and Dogwood are shown as deficient
under 2044 PWWFs.
Table 5.4 Lift Station Analysis
Lift Station Number of
Pumps
Total Capacity(1)
(gpm)
Firm Capacity(1)
(gpm)
Existing PWWF
(gpm)
2044 PWWF
(gpm)
Area 19 2 650 325 120 124
Terrace View 2 1,350 675 114 282
Ellingson Road 2 3,054 1,527 1,355 1,456
Auburn 40 2 880 440 ---(2) ---(2)
F Street 2 800 400 265 370
Riverside 2 800 400 126 198
R Street 2 200 100 50 58
Peasley Ridge 2 550 275 47 115
Rainier Ridge 2 400 200 184 366
Valley Meadows 2 250 125 20 66
22nd Street 2 1,100 550 90 109
8th Street 2 300 150 94 106
North Tapps 2 1020 510 24 28
Verdana 3 3,000 2,000 975 1,219
Dogwood 2 600 300 239 395
Hudson 2 1,200 600 ---(2) ---(2)
Promenade 2 348 174 ---(2) ---(2)
Notes:
(1) The total and firm capacity of the station is based on the pump design point, assuming the pumps will be able to steadily
deliver the flow.
(2) The model is skeletonized, including only larger diameter piping and key connections, these pumps our outside of the
modeled portion of the system.
gpm - gallons per minute.
Page 79 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-14
5.6 Inflow and Infiltration Evaluation
I/I occurs in all sanitary sewer systems. Infiltration is defined as water entering the sanitary sewer system
through pipes, joint connections, manhole covers, and walls. Inflow is defined as water discharged to the
sanitary sewer system through connections to roof drains, yard drains, foundation drains, and cross
connections with storm sewers and combined sewers. The combination of I/I may be a major portion of
the total wastewater flow which is carried by the sanitary sewer system.
The City of Auburn 2016 Comprehensive Sewer Plan, Brown and Caldwell (2016 CSP) provided
recommendations to improve the City’s collection system. The Auburn Washington Rainfall Derived
Infiltration and Inflow Report 2022, ADS (2022 RDII Report) provided an initial look at the I/I across the
City. The results of both the analyses are summarized below:
Current levels of I/I were not causing capacity-related issues (2016 CSP).
Recommended the City to do an initial I/I investigation to support an eventual I/I management
program (2016 CSP).
Sewer extension projects are recommended to serve every parcel within the City limits.
Two of the larger basins, Y-1 and Y-3 exhibited slightly higher than the moderate threshold level of
10 gallons/linear feet/inch rainfall as RDII (2022 RDII Report). Converting to area based RDII shows
that Y-1 is estimated at 2,700 gpad and Y-3 at 4,100 gpad.
The upper most part of basin A9 (sub basin A9e) is responsible for the large majority of RDII
measured from this A9 area. In the basin A8 area, only sub basin A8b stood out as having potentially
elevated RDII. Only the southern part of basin A7 (A7e and A7g) area stood out as having potentially
elevated RDII (2022 RDII Report). These four basins had greater than 25 gallons/linear feet/inch
rainfall, or all greater than 12,000 gpad.
The City’s hydraulic model can be used to estimate peak flows for the different flow monitoring basins
and areas included in the model during the design storm. The following parameters were calculated to
better understand I/I severity in the collection system:
Peaking Factor: Peaking factors are the ratio between peak flow and base sanitary flow and are
commonly used for wastewater infrastructure design. These factors are derived by dividing the peak
flow by the base sanitary flow for each basin. Due to the prolonged rainy season, wastewater agencies
in the Pacific Northwest typically experience peaking factors from 2 to 10, and in some cases more
than 10.
» Systems with a Peaking Factor of 3 or less are often considered as performing well. High Peaking
Factors above 5 are typically signs of direct inflow to the collection system.
Peak I/I Rate: The Peak I/I rate is the peak flow rate of all non-sanitary flows. Peak I/I rates are
calculated by subtracting the base sanitary flow from the peak flow for each basin. Peak I/I rates are
largely dependent on local hydrology, the condition of the collection system, and drainage
connections, with the rate expressed in terms of gpad. The Peak I/I rate is calculated by dividing the
Peak I/I flow by the total contributing area of land in acres in each basin. Peak I/I Rates can range
from 1,000 gpad to over 20,000 gpad in areas in the Pacific Northwest. High peak I/I rates are usually
signs of infiltration.
Page 80 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-15
Table 5.5 summarizes the peaking factor and I/I rate for each flow monitoring basin during the design
storm. Figure 5.9 outlines the Peak I/I rate by flow monitoring basin. King County has a target I/I rate of
1,100 gpad during the design storm. Although some basins exceed the County target, the City average I/I
rate is 1,446 gpad during the design storm.
Table 5.5 I/I Summary by Flow Monitoring Basin for the Design Storm
Flow
Monitoring
Basin
Gross ADWF
(mgd)
Gross PWWF
(mgd)
Net ADWF
(mgd)
Net PWWF
(mgd)
Contributing
Area (acres)
I/I Rate
(gpad)
Peaking
Factor
A1 0.33 0.78 0.10 0.24 244 627 2.4
A1c 0.23 0.54 0.15 0.32 151 1,180 2.2
A1d 0.08 0.21 0.08 0.21 52 2,417 2.5
A3 0.14 0.21 0.14 0.21 83 802 1.5
A4 0.25 0.40 0.25 0.40 113 1,273 1.6
A6 0.09 0.47 0.09 0.47 98 3,847 5.1
A7 0.14 1.28 0.14 1.28 109 10,409 8.8
A9 0.06 0.43 0.06 0.43 53 7,000 7.4
A10 0.29 1.15 0.05 0.66 115 5,366 14.4
A11(1) 0.07 0.43 0.01 0.00 17 - -
A12 0.02 0.08 0.02 0.08 21 3,063 4.6
A13 0.04 0.11 0.04 0.11 63 1,048 2.5
A14 0.18 0.43 0.12 0.28 102 1,580 2.3
A15 0.06 0.15 0.06 0.15 72 1,300 2.7
A16 0.24 0.48 0.24 0.48 285 855 2.0
Y-1 0.40 1.01 0.40 1.01 94 6,454 2.5
Y-2 1.03 4.06 1.03 4.06 872 3,471 3.9
Y-3 0.66 3.63 0.66 3.63 541 5,494 5.5
Y-4 0.14 0.29 0.14 0.29 179 840 2.0
WINT003 3.26 8.11 2.32 2.91 1,871 314 1.3
MSTTR02(1) 2.73 7.99 0.62 0.25 482 - -
AUBRN53 7.81 20.03 1.34 2.95 1,212 1,322 2.2
Average 1,446
Notes:
(1) PWWF constrictions upstream limit net PWWF calculation, making it difficult to determine accurate I/I values in these
basins.
Page 81 of 1163
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Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.9 Peak I/I Rate by Flow Monitoring Basin
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Flow Monitoring Basins
Roads
Auburn City Limits
City of Auburn Service Area
GIS Sewer Mains by Diameter
8" or Smaller
10" - 16"
18" or Larger
King County Interceptors
Peak I/I Rate (gpd)
0-3,000
3,000-5,000
5,000-7,000
7,000-10,000
Greater than 10,000
Unmetered
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Page 82 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-17
5.7 Remaining Useful Life
One key criteria used for assessing vulnerability and long-term rehabilitation and replacement needs is a
remaining useful life (RUL) estimate. This estimate represents how many years a pipe with a certain
material has before the likelihood of failure significantly increases.
Pipe age and material type are used to determine the RUL of the collection system pipelines. GIS data and
field research were used to determine the type of material and year or decade that pipe segments were
installed and identify data gaps. The City is in the process of updating its asset inventory, so the data to
conduct a comprehensive analysis of RUL across the system is not complete. Upon substantial completion
of the inventory work, the City should analyze the complete set of data to project rehabilitation and
replacement needs.
Pipe manufacturers establish a theoretical useful life based on pipe material; however, the actual useful
life is also influenced by local soil conditions, aggressive wastewater materials, methods of installation, etc.
The original useful life for pipe of known material varies from 75 years for concrete pipe (CP) to 100 years
for vitrified clay pipe (VCP). Since the age and material data for some of the pipelines were unavailable, it
is assumed that the original useful life for all pipes of unknown age and materials is 75 years. Table 5.6
presents the estimated useful life of pipes of various materials.
Table 5.6 Useful Life of Pipes
Pipe Material Original Useful Life (years)
Polyvinyl Chloride 100
Unknown 75
Concrete 75
Vitrified Clay 100
Ductile Iron 75
High Density Polyethylene 90
Clay 75
Cured in Place Liner 75
Table 5.7 summarizes the City's gravity sewer system available information by material type and known
age into short (less than 10 years), medium (10-20 years), and long-term (greater than 20 years) for
replacement needs, as well as unknown where age or material type is not current in the GIS. The cells are
color-coded to show the three categories of RUL and unknown; orange is the unknown, red indicates pipe
that is expected to reach the end of useful life in the next 10 years or has reached its useful life, yellow
represents pipe with a RUL of between 10 and 20 years, and green represents pipe that has a RUL of over
20 years. In total, approximately one percent of the existing collection pipes with a known installation year
are expected to reach the end of their useful lives by the year 2034. The table shows that the City GIS
database is currently missing information of material type and/or approximate installation year for a large
portion of the system.
Page 83 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-18
Table 5.7 Remaining Useful Life
Feet of Pipeline
Pipe Material Less than
10 Years
10-20 Years Greater than
20 Years
Unknown
Install Date
Total
Unknown 1,541 2,153 10,855 55,723 70,272
Clay 199 13,226 13,425
Concrete 14,998 8,219 119,443 142,660
Cured in Place Liner 3,408 3,408
Ductile Iron 14,860 9,616 24,475
High Density Polyethylene 18,759 4,555 23,315
Polyvinyl Chloride 443,899 381,190 825,089
Vitrified Clay 3,280(1) 3,280 3,280
Total 1,541 17,150 500,199 587,033 1,105,923
Notes:
(1) Likely greater than 20 years as material use was stopped more than 20 years ago.
As noted earlier, prior to developing any detailed formal replacement and rehabilitation programs based
on this information, a thorough assessment of the collection system asset management should be
completed to update the age and material information in the GIS system where missing. Material and age
of pipelines is critical to understanding when pipeline replacement may be needed. The material type and
age will provide a picture of when the asset may need updating. The asset inventory effort should
determine the following attributes for all City owned facilities:
Material.
Age of installation, or estimate based on material.
As the majority of the system has more than 20-years or unknown remaining useful life, the City should
focus on identifying the unknown information prior to the next plan update. Based on a complete picture
of material and age, long term costing can then be developed to create an effect renewal and
replacement program, thereby ensuring the long term reliability of this key City asset.
While the RUL analysis provides a guide to when pipes may need replacing, short term decisions that
prioritize which pipes to rehabilitate or replace must take other factors into account, including:
Pipe Condition Scores - Based on CCTV inspections and standard scoring criteria.
Pipe Criticality - The consequences of a pipe failure both for customers affected and environmental
concerns.
Efficiency - Considering replacement or rehabilitation of pipes in conjunction with other City projects
save funds.
Page 84 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-19
5.8 Recommendations
5.8.1 Asset Inventory, System Inspections, and Remaining Useful Life
An asset inventory effort is underway that will update the asset database with information available from
as-built drawings and inspection records. An inspection program of laterals in City right-of-way (ROW) is
being planned by the City to better understand current conditions. This inspection program would
provide several key benefits for the City, including better information on pipe material, condition, and age.
This program would allow for filling in GIS data gaps on pipe materials to enhance asset management
capabilities. When updating GIS records with material, the installation date could also be added to the
records to further improve understanding of a pipeline’s potential remaining useful life. The inspection
program would also provide significant insights on potential sources of I/I within the limited areas having
elevated WWFs.
5.8.2 Capacity Evaluation Recommendations
Figure 5.10 outlines the key conveyance deficiencies in the system, where a pipe is both surcharged and 6
feet from the rim. The figure identifies which scenario the deficiency is a part of with existing surcharged
pipes shown in red, the 2044 surcharged pipes in green, and the 2044 with climate change pipes in
purple. The figure also shows the peak I/I rate to help identify if I/I is a significant contributing factor. I/I
investigation is recommended to address capacity deficiencies in basins with an I/I rate above 5,000 gpad.
Ideally, the lateral inspection program would start with a high I/I basin.
Table 5.8 outlines six different deficiency areas. These areas are classified by timing, recommendation, and
extent of surcharging and deficient manholes. These areas are included withing the CIPs in Chapter 7 with
some additional discussion, however not all of them have a specific CIP number associated with them.
Area 1 has high I/I and is recommended for continued monitoring with a specific CIP Project 9. Area 4 is a
large project with a specific CIP. Areas 2, 3 5 and 6 are all shorter lengths of piping and included within a
programmatic CIP.
5.8.3 Future Population Growth
Although this Plan anticipates population and employment growth projected during the development of
the City Comprehensive Plan, recent legislation (e.g. HB1110 passed in 2023 and upcoming HB1245) may
permit or promote growth in a manner not anticipated by this Plan. As growth occurs, the utility may need
to reevaluate pump station or other conveyance systems to ensure adequate capacity exists.
Page 85 of 1163
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0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.10 Recommended Remediation Strategies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Deficent Manhole
King County Deficent
Manhole
Deficency on King County
Pipeline
Model Deficiencies
Existing Deficency
2044 Deficiency
2044+CC Deficency
Modeled Pipe
Sewer Force Main
Remediation Areas
Capacity Driven Deficiency
I/I Driven Deficiency
Flow Monitoring Basins
Roads
City of Auburn Sewer
Service Area
"=)Sewer Pump Stations
Shallow Manholes
King County Interceptors
Peak I/I Rate (gpd)
0-3,000
3,000-5,000
5,000-7,000
7,000-10,000
Greater than 10,000
Unmetered
18
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167
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Page 86 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-9
5.4 Gravity Collection System Deficiencies
A capacity analysis of the modeled collection system was performed using the City's calibrated hydraulic
model, the design storm, and referring to the above outlined evaluation criteria in Section 5.2. The
capacity analysis entailed identifying areas in the sewer system where the performance criteria or the
capacity of lift stations was exceeded.
5.4.1 Key Causes of Deficiencies
The calibrated hydraulic model was run with the design storm to determine areas that may be triggering
potential capacity deficiencies based on the system performance criteria. The key causes triggering
deficiencies in the City’s collection system included:
Adverse slopes and misaligned inverts.
Pipe restrictions (a single or few smaller diameter pipes between larger diameter pipes).
Pipe diameter too small or at too flat a slope to convey the PWWF.
5.4.2 Existing System Potential Deficiencies
For the existing planning scenario, the current PWWF was routed through the hydraulic model. The peak
HGL in manholes and gravity pipelines were compared to the established performance criteria. In general,
the modeled collection system has sufficient capacity to convey existing flows during the design storm.
The existing deficiencies are relatively minor; their locations are shown on Figure 5.6 in red and yellow.
Figure 5.7 also identifies shallow manholes (manholes with a depth less than 6 feet). A total of 7,428 feet
of pipe is surcharged, 1 manhole (MH) may flood, and 47 MHs are within 6 feet of the rim during the
design storm.
5.4.3 2044 Potential System Deficiencies
For the 2044 planning scenario, additional contributing areas, and additional dry weather flow (DWF) were
added to the model based on the projected growth identified in Section 5.3. In general, system HGL
increases with additional flows. A total of 16,842 feet of piping may surcharge during PWWF, 3 MH are
potentially flooding and 64 MHs are within 6 feet of the rim. The 2044 deficiencies are identified in red
and yellow on Figure 5.7. The 2044 deficiencies with the climate change design storm are shown in red
and yellow on Figure 5.8. The climate change design storm leads to 29,538 feet of surcharging pipe, 6 MH
potentially flooding and 76 MHs within 6 feet of the rim.
Page 87 of 1163
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0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.6 Existing System Deficiencies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Deficient Manholes
Flooding Manhole
6 Feet from Rim
Pipe not Modeled
Gravity Main
Deficient Modeled Pipe
(d/D>1)
Modeled Pipe
Shallow Manholes
Force Main
King County Interceptor
"=)Sewer Pump Station
City of Auburn Service
Area
Roads
Waterbodies
18
18
167
167
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0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.7 2044 System Deficiencies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
"=)Sewer Pump Station
Deficient Manholes
Flooding Manhole
6 Feet from Rim
Pipe not Modeled
Gravity Main
Deficient Modeled Pipe
(d/D>1)
Modeled Pipe
Shallow Manholes
Force Main
City of Auburn Service
Area
King County Interceptor
Waterbodies
Roads
18
18
167
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Last Revised: May 06, 2024 [ENTER PROJECT WISE PATH NAME TO MXD] For Example:pw://Carollo/Documents/Client/CA/ClientName/10265A00/Data/GIS/Figure_01_01.aprxO
0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.8 2044 Climate Change Design Storm System Deficiencies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
"=)Sewer Pump Station
Deficient Manholes
Flooding Manhole
6 Feet from Rim
Pipe not Modeled
Gravity Main
Deficient Modeled Pipe
(d/D>1)
Modeled Pipe
Shallow Manholes
Force Main
City of Auburn Service
Area
King County Interceptor
Waterbodies
Roads
18
18
167
167
Page 90 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-13
5.5 Lift Station and Force Main Evaluation
Ensuring lift stations have adequate capacity to convey PWWFs is important for preventing sewage
overflows at or near lift stations. In accordance with the established performance criteria, the City’s
existing modeled lift stations were evaluated to determine if each one has the available capacity to convey
existing and future PWWFs with the largest pump out of service (i.e., its firm capacity). If a lift station has
inadequate capacity to pump the PWWFs, the water level in the wet well may rise to the overflow point,
spilling sewage.
The City’s hydraulic model includes 14 of the 17 City owned lift stations located in the collection system.
The estimated current and future PWWFs were compared to the 14 lift stations’ firm capacities. Lift
stations with an influent PWWF above the existing firm capacity were flagged as deficient. Table 5.4
summarizes the results of the lift station evaluation. Rainier Ridge and Dogwood are shown as deficient
under 2044 PWWFs.
Table 5.4 Lift Station Analysis
Lift Station Number of
Pumps
Total Capacity(1)
(gpm)
Firm Capacity(1)
(gpm)
Existing PWWF
(gpm)
2044 PWWF
(gpm)
Area 19 2 650 325 120 124
Terrace View 2 1,350 675 114 282
Ellingson Road 2 3,054 1,527 1,355 1,456
Auburn 40 2 880 440 ---(2) ---(2)
F Street 2 800 400 265 370
Riverside 2 800 400 126 198
R Street 2 200 100 50 58
Peasley Ridge 2 550 275 47 115
Rainier Ridge 2 400 200 184 366
Valley Meadows 2 250 125 20 66
22nd Street 2 1,100 550 90 109
8th Street 2 300 150 94 106
North Tapps 2 1020 510 24 28
Verdana 3 3,000 2,000 975 1,219
Dogwood 2 600 300 239 395
Hudson 2 1,200 600 ---(2) ---(2)
Promenade 2 348 174 ---(2) ---(2)
Notes:
(1) The total and firm capacity of the station is based on the pump design point, assuming the pumps will be able to steadily
deliver the flow.
(2) The model is skeletonized, including only larger diameter piping and key connections, these pumps our outside of the
modeled portion of the system.
gpm - gallons per minute.
Page 91 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-14
5.6 Inflow and Infiltration Evaluation
I/I occurs in all sanitary sewer systems. Infiltration is defined as water entering the sanitary sewer system
through pipes, joint connections, manhole covers, and walls. Inflow is defined as water discharged to the
sanitary sewer system through connections to roof drains, yard drains, foundation drains, and cross
connections with storm sewers and combined sewers. The combination of I/I may be a major portion of
the total wastewater flow which is carried by the sanitary sewer system.
The City of Auburn 2016 Comprehensive Sewer Plan, Brown and Caldwell (2016 CSP) provided
recommendations to improve the City’s collection system. The Auburn Washington Rainfall Derived
Infiltration and Inflow Report 2022, ADS (2022 RDII Report) provided an initial look at the I/I across the
City. The results of both the analyses are summarized below:
Current levels of I/I were not causing capacity-related issues (2016 CSP).
Recommended the City to do an initial I/I investigation to support an eventual I/I management
program (2016 CSP).
Sewer extension projects are recommended to serve every parcel within the City limits.
Two of the larger basins, Y-1 and Y-3 exhibited slightly higher than the moderate threshold level of
10 gallons/linear feet/inch rainfall as RDII (2022 RDII Report). Converting to area based RDII shows
that Y-1 is estimated at 2,700 gpad and Y-3 at 4,100 gpad.
The upper most part of basin A9 (sub basin A9e) is responsible for the large majority of RDII
measured from this A9 area. In the basin A8 area, only sub basin A8b stood out as having potentially
elevated RDII. Only the southern part of basin A7 (A7e and A7g) area stood out as having potentially
elevated RDII (2022 RDII Report). These four basins had greater than 25 gallons/linear feet/inch
rainfall, or all greater than 12,000 gpad.
The City’s hydraulic model can be used to estimate peak flows for the different flow monitoring basins
and areas included in the model during the design storm. The following parameters were calculated to
better understand I/I severity in the collection system:
Peaking Factor: Peaking factors are the ratio between peak flow and base sanitary flow and are
commonly used for wastewater infrastructure design. These factors are derived by dividing the peak
flow by the base sanitary flow for each basin. Due to the prolonged rainy season, wastewater agencies
in the Pacific Northwest typically experience peaking factors from 2 to 10, and in some cases more
than 10.
» Systems with a Peaking Factor of 3 or less are often considered as performing well. High Peaking
Factors above 5 are typically signs of direct inflow to the collection system.
Peak I/I Rate: The Peak I/I rate is the peak flow rate of all non-sanitary flows. Peak I/I rates are
calculated by subtracting the base sanitary flow from the peak flow for each basin. Peak I/I rates are
largely dependent on local hydrology, the condition of the collection system, and drainage
connections, with the rate expressed in terms of gpad. The Peak I/I rate is calculated by dividing the
Peak I/I flow by the total contributing area of land in acres in each basin. Peak I/I Rates can range
from 1,000 gpad to over 20,000 gpad in areas in the Pacific Northwest. High peak I/I rates are usually
signs of infiltration.
Page 92 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-15
Table 5.5 summarizes the peaking factor and I/I rate for each flow monitoring basin during the design
storm. Figure 5.9 outlines the Peak I/I rate by flow monitoring basin. King County has a target I/I rate of
1,100 gpad during the design storm. Although some basins exceed the County target, the City average I/I
rate is 1,446 gpad during the design storm.
Table 5.5 I/I Summary by Flow Monitoring Basin for the Design Storm
Flow
Monitoring
Basin
Gross ADWF
(mgd)
Gross PWWF
(mgd)
Net ADWF
(mgd)
Net PWWF
(mgd)
Contributing
Area (acres)
I/I Rate
(gpad)
Peaking
Factor
A1 0.33 0.78 0.10 0.24 244 627 2.4
A1c 0.23 0.54 0.15 0.32 151 1,180 2.2
A1d 0.08 0.21 0.08 0.21 52 2,417 2.5
A3 0.14 0.21 0.14 0.21 83 802 1.5
A4 0.25 0.40 0.25 0.40 113 1,273 1.6
A6 0.09 0.47 0.09 0.47 98 3,847 5.1
A7 0.14 1.28 0.14 1.28 109 10,409 8.8
A9 0.06 0.43 0.06 0.43 53 7,000 7.4
A10 0.29 1.15 0.05 0.66 115 5,366 14.4
A11(1) 0.07 0.43 0.01 0.00 17 - -
A12 0.02 0.08 0.02 0.08 21 3,063 4.6
A13 0.04 0.11 0.04 0.11 63 1,048 2.5
A14 0.18 0.43 0.12 0.28 102 1,580 2.3
A15 0.06 0.15 0.06 0.15 72 1,300 2.7
A16 0.24 0.48 0.24 0.48 285 855 2.0
Y-1 0.40 1.01 0.40 1.01 94 6,454 2.5
Y-2 1.03 4.06 1.03 4.06 872 3,471 3.9
Y-3 0.66 3.63 0.66 3.63 541 5,494 5.5
Y-4 0.14 0.29 0.14 0.29 179 840 2.0
WINT003 3.26 8.11 2.32 2.91 1,871 314 1.3
MSTTR02(1) 2.73 7.99 0.62 0.25 482 - -
AUBRN53 7.81 20.03 1.34 2.95 1,212 1,322 2.2
Average 1,446
Notes:
(1) PWWF constrictions upstream limit net PWWF calculation, making it difficult to determine accurate I/I values in these
basins.
Page 93 of 1163
A16
A7
AUB
Y-4
A15
A9
A4
A13
A11
A6
AUB Y-3
AUBRN53
A3
A1 A1c
A1d
AUBY-1
AUB Y-2
MSTTR02A
WINT003
A12
A10
Unmetered
A14
EASTVALLEY122NDLAKELANDHI
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SUMNER TAPPSWEST VALLEYEDWARDS
STATE ROUTE
167132ND AVE SESE LAKE HOLM RD
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SE 256TH ST
AUBURNWAYNWESTVALLEYHWYSA ST SE116TH AVE SEKENT-DES MOINES RD S
51ST AVE S112TH AVE SES 277TH ST
B ST NWS
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Last Revised: May 06, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.9 Peak I/I Rate by Flow Monitoring Basin
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Flow Monitoring Basins
Roads
Auburn City Limits
City of Auburn Service Area
GIS Sewer Mains by Diameter
8" or Smaller
10" - 16"
18" or Larger
King County Interceptors
Peak I/I Rate (gpd)
0-3,000
3,000-5,000
5,000-7,000
7,000-10,000
Greater than 10,000
Unmetered
18
18
167
167
Page 94 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-17
5.7 Remaining Useful Life
One key criteria used for assessing vulnerability and long-term rehabilitation and replacement needs is a
remaining useful life (RUL) estimate. This estimate represents how many years a pipe with a certain
material has before the likelihood of failure significantly increases.
Pipe age and material type are used to determine the RUL of the collection system pipelines. GIS data and
field research were used to determine the type of material and year or decade that pipe segments were
installed and identify data gaps. The City is in the process of updating its asset inventory, so the data to
conduct a comprehensive analysis of RUL across the system is not complete. Upon substantial completion
of the inventory work, the City should analyze the complete set of data to project rehabilitation and
replacement needs.
Pipe manufacturers establish a theoretical useful life based on pipe material; however, the actual useful
life is also influenced by local soil conditions, aggressive wastewater materials, methods of installation, etc.
The original useful life for pipe of known material varies from 75 years for concrete pipe (CP) to 100 years
for vitrified clay pipe (VCP). Since the age and material data for some of the pipelines were unavailable, it
is assumed that the original useful life for all pipes of unknown age and materials is 75 years. Table 5.6
presents the estimated useful life of pipes of various materials.
Table 5.6 Useful Life of Pipes
Pipe Material Original Useful Life (years)
Polyvinyl Chloride 100
Unknown 75
Concrete 75
Vitrified Clay 100
Ductile Iron 75
High Density Polyethylene 90
Clay 75
Cured in Place Liner 75
Table 5.7 summarizes the City's gravity sewer system available information by material type and known
age into short (less than 10 years), medium (10-20 years), and long-term (greater than 20 years) for
replacement needs, as well as unknown where age or material type is not current in the GIS. The cells are
color-coded to show the three categories of RUL and unknown; orange is the unknown, red indicates pipe
that is expected to reach the end of useful life in the next 10 years or has reached its useful life, yellow
represents pipe with a RUL of between 10 and 20 years, and green represents pipe that has a RUL of over
20 years. In total, approximately one percent of the existing collection pipes with a known installation year
are expected to reach the end of their useful lives by the year 2034. The table shows that the City GIS
database is currently missing information of material type and/or approximate installation year for a large
portion of the system.
Page 95 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-18
Table 5.7 Remaining Useful Life
Feet of Pipeline
Pipe Material Less than
10 Years
10-20 Years Greater than
20 Years
Unknown
Install Date
Total
Unknown 1,541 2,153 10,855 55,723 70,272
Clay 199 13,226 13,425
Concrete 14,998 8,219 119,443 142,660
Cured in Place Liner 3,408 3,408
Ductile Iron 14,860 9,616 24,475
High Density Polyethylene 18,759 4,555 23,315
Polyvinyl Chloride 443,899 381,190 825,089
Vitrified Clay 3,280(1) 3,280 3,280
Total 1,541 17,150 500,199 587,033 1,105,923
Notes:
(1) Likely greater than 20 years as material use was stopped more than 20 years ago.
As noted earlier, prior to developing any detailed formal replacement and rehabilitation programs based
on this information, a thorough assessment of the collection system asset management should be
completed to update the age and material information in the GIS system where missing. Material and age
of pipelines is critical to understanding when pipeline replacement may be needed. The material type and
age will provide a picture of when the asset may need updating. The asset inventory effort should
determine the following attributes for all City owned facilities:
Material.
Age of installation, or estimate based on material.
As the majority of the system has more than 20-years or unknown remaining useful life, the City should
focus on identifying the unknown information prior to the next plan update. Based on a complete picture
of material and age, long term costing can then be developed to create an effect renewal and
replacement program, thereby ensuring the long term reliability of this key City asset.
While the RUL analysis provides a guide to when pipes may need replacing, short term decisions that
prioritize which pipes to rehabilitate or replace must take other factors into account, including:
Pipe Condition Scores - Based on CCTV inspections and standard scoring criteria.
Pipe Criticality - The consequences of a pipe failure both for customers affected and environmental
concerns.
Efficiency - Considering replacement or rehabilitation of pipes in conjunction with other City projects
save funds.
Page 96 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-19
5.8 Recommendations
5.8.1 Asset Inventory, System Inspections, and Remaining Useful Life
An asset inventory effort is underway that will update the asset database with information available from
as-built drawings and inspection records. An inspection program of laterals in City right-of-way (ROW) is
being planned by the City to better understand current conditions. This inspection program would
provide several key benefits for the City, including better information on pipe material, condition, and age.
This program would allow for filling in GIS data gaps on pipe materials to enhance asset management
capabilities. When updating GIS records with material, the installation date could also be added to the
records to further improve understanding of a pipeline’s potential remaining useful life. The inspection
program would also provide significant insights on potential sources of I/I within the limited areas having
elevated WWFs.
5.8.2 Capacity Evaluation Recommendations
Figure 5.10 outlines the key conveyance deficiencies in the system, where a pipe is both surcharged and 6
feet from the rim. The figure identifies which scenario the deficiency is a part of with existing surcharged
pipes shown in red, the 2044 surcharged pipes in green, and the 2044 with climate change pipes in
purple. The figure also shows the peak I/I rate to help identify if I/I is a significant contributing factor. I/I
investigation is recommended to address capacity deficiencies in basins with an I/I rate above 5,000 gpad.
Ideally, the lateral inspection program would start with a high I/I basin.
Table 5.8 outlines six different deficiency areas. These areas are classified by timing, recommendation, and
extent of surcharging and deficient manholes. These areas are included withing the CIPs in Chapter 7 with
some additional discussion, however not all of them have a specific CIP number associated with them.
Area 1 has high I/I and is recommended for continued monitoring with a specific CIP Project 9. Area 4 is a
large project with a specific CIP. Areas 2, 3 5 and 6 are all shorter lengths of piping and included within a
programmatic CIP.
5.8.3 Future Population Growth
Although this Plan anticipates population and employment growth projected during the development of
the City Comprehensive Plan, recent legislation (e.g. HB1110 passed in 2023 and upcoming HB1245) may
permit or promote growth in a manner not anticipated by this Plan. As growth occurs, the utility may need
to reevaluate pump station or other conveyance systems to ensure adequate capacity exists.
Page 97 of 1163
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AUB Y-3
AUBRN53
A3
A1 A1c
A1d
AUBY-1
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MSTTR02A
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Unmetered
A14
EASTVALLEY122NDLAKELANDHI
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SUMNER TAPPSWEST VALLEYEDWARDS
STATE ROUTE
167132ND AVE SESE LAKE HOLM RD
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W MEEKER ST
SE 256TH ST
AUBURNWAYNWESTVALLEYHWYSA ST SE116TH AVE SEKENT-DES MOINES RD S
51ST AVE S112TH AVE SES 277TH ST
B ST NWS
P
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AS
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EYCANYONRDMILITARY RD S124TH AVE SESEAUBURN-BLACKDIAMONDRD104THAVESESE K
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Area 1
Area 2
Area 3
Area 4
Area 5
Area 6
Last Revised: May 06, 2024 [ENTER PROJECT WISE PATH NAME TO MXD] For Example:pw://Carollo/Documents/Client/CA/ClientName/10265A00/Data/GIS/Figure_01_01.aprxO
0 0.70.35
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS
SEPTEMBER 2024 / DRAFT / CAROLLO
Figure 5.10 Recommended Remediation Strategies
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Deficent Manhole
King County Deficent
Manhole
Deficency on King County
Pipeline
Model Deficiencies
Existing Deficency
2044 Deficiency
2044+CC Deficency
Modeled Pipe
Sewer Force Main
Remediation Areas
Capacity Driven Deficiency
I/I Driven Deficiency
Flow Monitoring Basins
Roads
City of Auburn Sewer
Service Area
"=)Sewer Pump Stations
Shallow Manholes
King County Interceptors
Peak I/I Rate (gpd)
0-3,000
3,000-5,000
5,000-7,000
7,000-10,000
Greater than 10,000
Unmetered
18
18
167
167
Page 98 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-21
Table 5.8 Capacity Deficiencies
Area
Number
Location Timing Pipe
Diameter
Approximate
Depth
(feet)
Number of
Manholes
Impacted
Linear Feet of
Surcharged Pipe
(feet)
Flow Monitoring
Basin I/I Rate
(gpad)
Recommendation
Area 1 Along SE 304th Street and 304th Place,
between 116th Avenue SE and the
Green River crossing
2044 10-inch to
18-inch
9 3 2,666 6,454 Additional I/I Monitoring
Area 2 From Lea Hill Road SE to SE 311 Street 2044 12-inch 10 1 1,243 3,471 Capacity Driven –
Recommend Upsizing
Area 3 6th Street NE to H Street NE, through
Veterans Memorial Park
2044 10-inch 7 1 836 7,000 I/I Remediation
Area 4 Oravetz Place SE to the Lakeland Hills
force main, through Roegner Park
Existing 8-inch to
24-inch
12 11 4,158 314 Capacity Driven –
Recommend Upsizing
Area 5 Just south of 6th Street NW near the
Interurban Trail
Existing 18-inch 6 1 72 314 Capacity Driven –
Recommend Upsizing
Area 6 SE 320th Street and 102nd Avenue SE Existing 12-inch to
14-inch
10 1 602 3,471 Capacity Driven –
Recommend Upsizing
Notes:
NE - northeast; NW - northwest; SE - southeast; SW - southwest.
Page 99 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-22
5.8.4 Inflow and Infiltration Evaluation Recommendations
5.8.4.1 Recommended Strategies for Additional Monitoring or Investigation
The City has few high I/I basins and minimal I/I driven capacity deficiencies. Figure 5.8 outlined the
location of three areas that are in high I/I rate basins. Based on previous I/I analyses, and capacity
deficiencies identified in the model, the following I/I basins are to be prioritized:
A10.
A9.
A8.
A7.
AUB Y-1.
AUB Y-3.
ADS flow monitoring performed additional micro monitoring for basins A9, A8, and A7 and identified
sub-areas of focus, discussed in the next section. Basins AUB Y-1 and AUB Y-3 both have elevated I/I rates
that cause some risk of deficiency. It is recommended that additional monitoring at and upstream of
meter AUB Y-1 and AUB Y-3 be done and continued periodical monitoring of flows in the high I/I basis to
understand if conditions are stable or degrading.
5.8.4.2 Recommended Remediation Strategies
Reduction of I/I in wastewater systems can be a difficult and costly task to undertake. Identifying specific
sources, developing metrics for tracking the effectiveness of reduction techniques, and balancing the cost
against capacity projects are all major challenges.
Common techniques for reducing I/I include the following:
Direct Disconnects: This includes disconnecting roof downspouts, yard drains, foundation drains,
stormwater catch basins, and/or any connection to the wastewater system causing inflow.
Disconnection of these items may require additional provisions for stormwater drainage.
Repair and replacement of Pipes: This includes replacing or repairing public wastewater pipes,
typically due to poor condition, root intrusion, and disconnected joints. Options for pipe replacement
include open-cut trench construction or using trenchless technologies, such as pipe bursting or cured
in-place pipe. These options need to be assessed for local conditions, such as pipe condition, adjacent
utilities, and soil type.
Repair and replacement of Manholes: Several options exist for sealing manholes and preventing
infiltration through faulty joints and cracks. Alternatives include grouting, coating, installing a liner,
and/or applying an external sealant.
Page 100 of 1163
CHAPTER 5 - WASTEWATER SYSTEM ANALYSIS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 5-23
Repair and replacement of Laterals and Side Sewers: This includes replacing or repairing laterals and
side sewers due to poor condition and the presence of infiltration. Faulty side sewers and laterals are
known to be large contributors of I/I. Identifying and repairing multiple faulty laterals and side sewers
on private property can be more difficult and expensive than repairing a public wastewater pipe, and
replacing or repairing side sewers on private property is the responsibility of property owners.
Methods for repairing or replacing laterals and side sewers are similar to those described for public
pipes. Trenchless technologies, which are less obtrusive than open-cut trenches are effective for
replacing laterals and side sewers while minimizing impacts to landscaping and driveways. The City
can repair or replace portions of side sewers within rights-of-way, and should support efforts to
encourage property owners to replace portions on private property.
At this point, the City is experiencing relatively low I/I driven issues in concentrated areas. Area 6 is likely
deficient due to elevated I/I in the A9e subbasin. It is recommended that the I/I remediation strategies
outlined above be investigated further for I/I reduction in subbasin A9e. The lateral inspection program
should start with this basin.
Page 101 of 1163
CHAPTER 6 - MAINTENANCE AND OPERATIONS SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 6-1
CHAPTER 6 MAINTENANCE AND OPERATIONS
This chapter provides an overview of the organization and common procedures associated with the
ongoing maintenance and operation of the City sewer utility system, the primary purpose being to
establish a baseline understanding of the proactive and responsive maintenance procedures performed
by City staff. This baseline understanding is used herein to evaluate Sewer Utility (Utility) staffing, data
collection and computerized record-keeping needs, and other Utility requirements to continue to meet
the Utility’s goals.
The City sewer system, detailed in Chapter 4, consists of approximately 210 miles of collection system
piping, approximately 5,500 manholes, 17 sewer utility pump stations, and 3 siphons and serves more
than 16,000 Utility customers. Utility staff also maintain 7 stormwater pump stations and 5 sewer pump
stations serving individual facilities owned by other City departments.
6.1 Utility Responsibility and Authority
This section provides an overview of the Utility organization and basic information related to Utility
staffing, training, and education.
6.1.1 Organizational Structure
The Utility is operated as a utility enterprise under the direction of the Public Works (PW) Department
Director. PW is responsible for planning, design, construction, operation, maintenance, quality control,
and management of the sewer system. The City has a mayor-council form of government; therefore, the
PW Director reports to the Mayor. The Mayor provides direct administration and management of the
utility. The City Council provide direction on policies and budget.
The Engineering Services Division (Engineering) within PW is the lead group for comprehensive sewer
system planning, development of a CIP, and the design, construction, and inspection of projects related to
the sewer system. The Utilities Engineering Manager oversees Utilities Engineering, including the Sewer
Utility Engineer, and reports directly to the PW Director.
The M&O Services Division within PW is the lead group for the maintenance, inspection, and operation, of
the physical assets of the Sewer Utility. The Storm/Sewer Manager oversees the Utility’s 10 employees
including the Sewer Field Supervisor and is responsible for the day-to-day maintenance and operation of
the system. The Storm/Sewer Manager reports to the M&O Services General Manager, who, in turn,
reports to the PW Director.
The location of the Utility within the overall PW organizational structure is shown in Figure 6.1.
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Figure 6.1 City of Auburn Public Works Department Organizational Chart
6.1.2 Staffing Level
The Utility currently employs 10 full-time M&O field staff plus a Storm/Sewer Manager and a Sewer Field
Supervisor, who perform administrative duties. This chapter does not include an evaluation of Utility
management, including regulatory compliance, planning, and coordination with other City departments.
The position titles and primary functions of the full-time M&O field staff working within the Sewer
Division are shown in Table 6.1.
Table 6.1 Sewer Utility M&O Field Personnel
Position Primary Function(s)
Sewer/Storm Manager Utility administrative duties.
Sewer Field Supervisor Supervision of field staff.
Sewer Specialist Two full-time staff dedicated to pump station inspection and maintenance.
Lead Maintenance Worker II One full-time staff dedicated to operating the CCTV Inspection Program.
Maintenance Worker II Five full-time staff dedicated to field inspection and maintenance.
Maintenance Worker I Two full-time staff dedicated to field inspection and maintenance.
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6.1.3 Level of Service
The Utility operates in accordance with the policies outlined in Chapter 2, and internally adopted goals
integral to policy implementation. These goals are generally based on the current staffing level and tasks
deemed most critical to the City and its residents.
6.1.4 Operator Training and Education
The City recognizes the value of having a knowledgeable and well-trained staff operating the Utility and
encourages employees to obtain the highest level of training available. At this time, the State of
Washington does not require certification for sewer maintenance operators. Seminars, conferences
(specifically the annual Washington Wastewater Collection Personnel Association conference), and college
coursework have become tools to advance knowledge for maintenance staff with subjects covered
including safety, pumps, generators, forklift training, confined space, first aid, CPR, and electric and
electronic fundamentals.
Many M&O staff serve in a specialized capacity. This can promote expertise, but also has the potential to
limit the ability of the Utility to absorb absences due to vacation, sickness, retirement, and termination.
To mitigate this limitation, the City has broadened the scope of the Utility’s education system by
cross-training staff, primarily staff that will serve in an on-call capacity and will be required to respond to
off-duty emergencies.
6.2 Routine Operations
Routine M&O activities for the Utility can be divided into functional groups by facility type, as described in
the following sections.
6.2.1 Pump Station Maintenance
Utility staff are responsible for maintenance of 29 pump stations, including 17 sewer utility stations
(see Chapter 4), 7 stormwater utility stations, and 5 pump stations serving facilities owned by other
City departments, at the Auburn Golf Course, Auburn City Hall, Auburn Justice Center, Isaac Evans Park,
and Auburn Valley Humane Society. M&O activities include scheduled weekly and monthly equipment
and grounds maintenance as well as emergency generator testing and maintenance. Pump station
maintenance is a full-time commitment for two Utility staff teams which each include a maintenance
worker and a sewer specialist.
6.2.1.1 Weekly Activities
Weekly pump station inspections are intended as a quick check to ensure proper operation and
performance, and to identify potential non-emergency concerns to be addressed during scheduled
monthly maintenance. Equipment maintenance schedules are based on manufacturers’ recommendations.
Depending on the site and time of year, ground maintenance may also be performed weekly or monthly
as conditions dictate.
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Weekly pump station maintenance activities include the following tasks:
Perform a general visual inspection of grounds and pump station structure or vault.
Check equipment for abnormal vibrations.
Check lubrication of all pumping equipment.
Check and clean, as needed, seal filters.
Check ultrasonic level sensor.
Check pump run times.
Bleed lines of moisture.
Inspect/exercise control valves.
Check wet well for debris.
Manually run the pump and observe wet well level.
Security fencing inspection.
Weekly inspection activities are intended to be completed in less than one hour for each pump station.
6.2.1.2 Monthly Activities
Monthly pump station maintenance activities incorporate weekly activities while allowing more time for
detailed maintenance and to address any previously identified concerns. Monthly maintenance can be
particularly important for older pump stations, where equipment and facilities require more attention.
Monthly pump station maintenance activities include the following tasks:
Inspect and test engine-generators (see below).
Inspect pump station mechanical bypass pumping.
Flush sump pit and manually run sump pump.
Clean pump station interior and, at a minimum, wipe down control panels and pumps, and
wash down/disinfect floor.
Inspect fall restraint system.
Spot-check control system and telemetry alarms.
Inspect cathodic protection.
Conduct building safety inspection.
Test automatic transfer switch operation.
Clean seal filters and vacuum probes.
Clean check valves.
Inspect the bioxide system.
Inspect odor control systems.
Inspect ventilation systems.
Inspect chain hoist and crane systems.
Inspect ladders and stairs.
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Check dehumidifier.
Inspect electrical panels and variable frequency drive pumps.
Inspect remote terminal units that connect pump stations to the Supervisory Control and Data
Acquisition (SCADA) system.
The duration of monthly inspection activities varies widely depending upon the age/condition of the
pump station and observations made during previous weekly inspections. On average, monthly
inspections are assumed to be completed within four hours at each pump station.
6.2.1.3 Yearly Activities
Yearly maintenance includes actions that take significantly more time than routine activities and often
require coordination/scheduling with additional City staff and/or outside vendors.
Yearly pump station maintenance activities include, but are not limited to, the following tasks:
Mag meter calibrations.
Chain hoist and crane load testing.
Impellers an expeller inspection.
Volute and motor inspection.
6.2.1.4 Generator Testing and Maintenance
City Utility staff perform limited maintenance on emergency generators serving sewer and stormwater
pump stations, primarily to verify the generator’s ability to perform in an emergency. Emergency
generators are exercised, and fuel levels are evaluated during monthly maintenance activities. Private
contracting services are used for detailed generator maintenance. It is recommended that detailed
generator maintenance be performed annually, including filter changes and load bank testing.
Permanent generators are located at all 17 Utility-owned sewer pump stations. Four of the stormwater
pump stations are equipped with permanent engine-generators. During a power outage, pump stations at
City Hall and the Justice Center are run via generators that serve the building. Those two generators are
maintained by the Administration Department, Facilities Division. In the event of a generator failure, pump
stations can be operated using portable generators owned and maintained by the PW Department.
6.2.1.5 Wet Well Cleaning and Inspection
Wet well cleaning is performed by Utility staff as needed, but on average is necessary twice annually.
Some pump stations in service areas with a noted high amount of fat, oils, and grease (FOG) accumulation
require cleaning at a higher frequency (see Section 6.3).
During cleaning, wet wells are drained and the inside is cleaned with high-pressure water. Accumulated
FOG and sludge/sediments are suctioned from the wet well using the City’s vactor truck and transported
to a disposal facility. During cleaning, Utility staff inspect all floats, sensors, and other hardware while the
wet well is drained, and they also visually inspect the wet well structure for damage.
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6.2.2 Collection System Maintenance
Utility staff are responsible for maintenance of approximately 210 miles of collection system piping and
approximately 5,500 manholes. M&O activities include pipe cleaning/jetting, closed-circuit television (CCTV)
inspection, and manhole inspection and maintenance.
6.2.2.1 Manhole Maintenance
Manhole maintenance includes initial inspection and potential follow-up cleaning and/or repair.
Inspection is usually performed in conjunction with CCTV and jetting operations. The inspection includes
the following:
Visual confirmation of proper flow conveyance.
Assessment of solids buildup in the manhole.
Evaluation of structural damage or wear and the integrity/condition of manhole covers and ladder
rungs.
Confirmation and/or population of data stored in the computerized maintenance management
system (CMMS).
Follow-up cleaning and maintenance work orders are generated based upon the results of initial
inspection recorded in the CMMS, and typically require a two-person crew. Based upon recent
maintenance history, it is estimated that approximately one in 10 manhole inspections leads to further
cleaning. The City estimates that a total of 50 manholes per year require some repair.
6.2.2.2 Sewer Pipeline Cleaning and CCTV Inspection
Cleaning and inspection of the sewer system is performed using City-owned vactor/jet truck and CCTV
equipment. Cleaning and CCTV inspection are typically performed in tandem from manhole to manhole
by a two- or three-person crew for each task.
Jetting of sewer pipelines and subsequent vactor truck removal is the principal means of removing debris,
sludge, FOG, and obstructions from the sewer system. A hose with a special end fitting is inserted into a
pipe and high-pressure water (up to 2,500 pounds per square inch) is sent through the hose. The
high-pressure water exits the small hole at the tip of the nozzle, breaking down and/or scouring
obstructions. Debris is then removed via suction by the vactor truck equipment at each manhole.
Following cleaning, CCTV inspection is performed to identify structural defects and potential pipeline
leaks. Routine CCTV inspection of the sewer system is an essential component of the M&O program as it
can identify trouble spots before larger failures occur and can provide the City with accurate information
about the condition of the sewer collection system. Between 2007 and 2019, inspection reports and digital
video captured by the CCTV crews have been stored within the City’s computer network using PIPELOGIX
software). Since 2020, inspection data has been stored electronically using WinCan software. The PW GIS
Group is in the process of inventorying sewer assets and updating data attributes. As part of that effort,
Engineering staff is developing a procedure to export condition assessment data from WinCan to the
CMMS. The intent of this data sharing is to be able to provide a more accurate planning tool based upon
the known condition of wastewater system assets.
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The City’s goal is to clean and inspect all sewer collection pipes, using the National Association of Sewer
Service Companies (NASSCO) Pipeline Assessment Certification Program (PACP), within the system on a
seven-year cycle. On average, a three-person crew can clean approximately 3,000 feet of pipe per day or
inspect approximately 1,500 feet of pipe per day.
Some of the City’s larger, high-flow pipes are challenging for staff to inspect using the current set of
equipment. In 2019-2020, the City hired a contractor to perform CCTV inspections on all 18-inch diameter
sewer pipes and larger. While no major deficiencies were found, some degradation of older concrete pipe
was observed. Staff intends to repeat some of those large diameter pipe inspections during this planning
cycle to assess whether additional degradation has occurred and to help project and plan for future repair
and replacement needs.
6.2.3 Field Operations
In addition to the M&O activities discussed in Sections 6.2.1 and 6.2.2, the Utility typically maintains a
two-person field crew that performs a variety of other ongoing Utility functions. The Utility is also
available to assist other PW divisions such as Water, Stormwater, or Transportation during manpower
shortages or emergencies. Sewer staff perform liaison functions with Engineering and construction
inspections for new projects, repairs, or modification of existing lines.
Currently, services for Utility locates are performed by two designated locators who are under the
supervision of the Water Division Manager.
Examples of field operations activities include:
Repair: Sewer staff perform repair of minor pipe breaks/leaks and other system infrastructure.
Engineering: Sewer staff often provide facility inspection services for Engineering projects and
support Engineering through visual observation in the field.
Vehicle and Equipment Maintenance: The Utility maintains an extensive inventory of equipment
available to respond to problems or emergencies. The fleet is currently equipped with seven trucks,
one CCTV van, one sewer vactor/jet truck, and one emergency bypass pump. Each component of this
fleet is equipped with valve operators and traffic control equipment.
Supply Inventory: The Utility maintains an inventory of supplies and parts that are available for use in
responding to emergency situations as well as normal Utility operations. Supplies and parts are
tracked in an inventory control system that allows easy identification of available materials.
It is difficult to quantify the field tasks performed by Utility staff in terms of equivalent staff. Many of
these tasks are performed outside of a regular maintenance schedule. The evaluation of existing staffing
requirements in Section 6.6 assumes that a two-person field operations crew is maintained for a
majority (0.75) of working days, or 1.5 full-time equivalent (FTE).
6.3 Fats, Oils, and Grease Reduction Program
FOG causes many operational challenges in the collection and treatment systems when not properly
disposed of at the source. When FOG enters a sewer, it cools, solidifies, and can stick to the interior of
pipes. FOG buildup increases over time, reducing the capacity of pipe to convey wastewater, potentially
causing backups in the sewer system and operational concerns within pump stations. As of 2024,
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Engineering employs two staff members who, among other duties, implement and oversee the City’s FOG
Reduction Program. The program focuses on regulation of food service establishments (FSE) and FOG
generating food processing businesses, as well as public education to minimize the amount of FOG
entering the City sewer system. (Note: Each staff member designates 25 percent of their time to the FOG
program. Prior to 2024, only one position was available for this effort).
The City currently monitors approximately 174 FSEs within the service area, most of which are required to
use grease trap/interceptor pretreatment facilities before discharging to the sewer collection system. FSEs
are identified through the business licensing process, during which all FSEs are required to submit a FOG
Control Plan per Auburn City Code (ACC) Chapter 13.22. ACC also codifies requirements for installation of
pretreatment facilities (typically grease traps and interceptors), cleaning and maintenance, water quality
testing, and record-keeping. City policy is to work with FSEs on a cooperative basis through outreach
activities; however, refusal to comply with City requirements can result in code enforcement action.
Because of limited staffing for the program, inspection and education efforts have focused primarily on
managing requirements for businesses to have a FOG Control Plan and reacting to areas with observed
FOG issues. In 2024, an additional staff person was hired to enable a more regular, proactive inspection
schedule and more consistent monitoring of grease interceptor cleaning. Regular FOG inspections will
also be combined with stormwater source control inspections to use staff resources more efficiently.
Because areas with observed FOG issues are not all downstream from FSEs, staff will continue to monitor
those areas and reach out to residents of both single-family and multi-family housing.
In addition to efforts to reduce the amount of FOG in the system, education and outreach efforts include:
1. Discouraging the flushing of cleaning wipes that may be labeled “flushable,” but that do not disperse
in water. These items can clog sewer lines and get caught in pumps, increasing maintenance efforts
within both the City collection and conveyance system, and King County’s treatment system.
2. Discouraging the disposal into the sewer system of pharmaceuticals, microplastics, and other
prohibited discharges by educating the public on the harmful effects of those substances in the
wastewater stream and by promoting alternative disposal methods.
3. Working with the King County Wastewater Treatment Division, Industrial Waste Program, to identify
manufacturing and other businesses that discharge substances that may be detrimental to the
wastewater treatment process.
6.4 Non-Routine and Emergency Operations
This section discusses unscheduled activities performed by Utility staff and provides a response plan for
emergency conditions. The intent of the routine inspection and maintenance activities discussed in
Sections 6.2 and 6.3 is to minimize, through proactive management of the sewer facilities, the potential
for conditions that could lead to emergencies.
6.4.1 Customer Service Requests
Customer service requests, such as a localized sewer backup complaint, trigger creation of a task
to inspect the affected area or sewer facility and identify potential solutions. In some cases, relatively
simple solutions can alleviate the issue. However, other cases require coordination with Engineering or
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other City departments. On average, Utility staff respond to approximately 50 customer
service/complaint-related tasks per year. The effort required to resolve complaints varies considerably.
Good record-keeping can help with complaint resolution by ensuring that all relevant data are gathered
and by serving as a reminder to resolve the complaint and notify the complainant. When a complaint is
received, the following information should be recorded to the greatest extent possible:
Name and contact information of the person making the complaint.
Brief description of the nature of the complaint.
If sewer overflow, include estimate of volume and duration of overflow.
Time and date the complaint was received.
M&O staff assigned to respond.
If any sewage is spilled to the environment, staff will immediately report the spill to the Department of
Ecology’s ERTS System.
Following the initial response, the complaint record is updated to include the results of inspections and
corrective actions taken, if any. If the complaint cannot be resolved internally within the Utility, the
complaint record is forwarded to Engineering for further investigation. Notification of any system
investigation and/or action is provided to the customer making the complaint.
6.4.2 Emergency Response Program
For specifically sewer related emergencies, the Utility has implemented a standby program whereby one
on-call employee is designated to be the first to receive after-hours emergency calls. Most sewer system
problems that occur outside normal working hours are reported through the City’s 911 emergency
response system. An emergency call-out list is provided to the emergency operator in order to contact
Utility staff in case of an emergency. Pump station SCADA alarms are also forwarded to the on-call
employee. The primary responder to those after-hours calls is the on-call employee. Utility staff have been
trained to respond to system emergencies and staff maintains a “Wastewater Standby Manual” with
pertinent information helpful in resolving spills, blockages, and other emergencies. The contacted staff
assesses the situation, contacts additional staff as necessary, and then responds in accordance with
established emergency response procedures.
For citywide emergencies such as severe weather events, flooding, landslides, power outages, or other
events with widespread impact across the PW Director or designee will activate the Department
Operations Center (DOC) which operates at the M&O facility. By direction of the DOC Operations Chief,
Sewer Utility staff will be used for any PW operations and will not necessarily be limited to sewer
operations. To help manage staff and operations during such incidents, the PW Department has
implemented several standard operating procedures that outline employee responsibilities for availability,
work response, etc.
For longer lasting or regional emergencies, City resources, including staff will be managed in accordance
with the City’s Comprehensive Emergency Management Plan dated October 21, 2019. The primary
objectives of the Comprehensive Emergency Management Plan are to ensure public safety, restore
essential services as quickly as possible, and provide assistance to other areas as required. That plan
outlines responsibilities of City departments related to the mitigation of the emergency situation within
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the City, and coordination and support of or from other organizations such as King County, Pierce County,
the State of Washington, and neighboring cities.
6.5 Communications, Data Collection, and Record-Keeping
This section describes the electronic communication, data collection, and record-keeping systems used by
Utility staff.
6.5.1 Telemetry and Pump Station Controls
The Utility uses a SCADA system to monitor and operate, as necessary, the sewer and storm pump
stations from a centralized location. SCADA information from all sewer, storm, and water facilities is
routed via radio signals to the M&O control center located at 1305 C Street SW. The control center
monitors wet well levels at all of the sewer pump stations together with pump run times and cycles.
Logic programming automates the sewer pump station operation via ultrasonic level detectors with
backup high float switches. The control center is configured to sound an alarm in the M&O building if a
recognized anomaly is detected. The alarm system is contacts Utility staff to investigate the anomaly in
the event that the problem occurs during non-working hours. All alarm and pump information is recorded
within the computer that functions as the control center.
6.5.2 Data Collection and Record-Keeping
Data collection and record-keeping functions for the Utility are performed using a Web-based CMMS
software package provided by Cartegraph Inc. The CMMS integrates GIS data with Utility records,
providing managers with overview information about system and operational performance, and field
crews with information related to the condition and failure history of specific wastewater facilities. The City
currently uses the CMMS to plan field staff activities (tasks), record results of both routine and non-
routine maintenance, and compare actual maintenance efforts to City goals. The City is also using the
CMMS as an asset management tool, through which the City optimizes staffing and capital resource
planning.
In recent years, the City has made considerable progress in adding asset information to the CMMS,
specifically GIS data, physical information related to size and material, and installation date. However,
significant inventory work, which is underway, is still required to fully utilize the asset management
function of the CMMS, and the addition of information related to risk, asset criticality, and condition is
also necessary. To assist the City’s transition to an asset management program, the attributes listed
below should be used within the CMMS to define each of the City sewer assets (manhole, pipe segment,
pump, etc.).
6.5.2.1 Asset-Specific Attributes
The following asset-specific attributes are related to the asset and, besides replacement cost, remain
relatively unchanged over time:
Asset ID: The unique asset number that is used by all business systems to identify an asset.
Location: Where the asset is located (GIS).
In-service date: The date the asset was placed into service.
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Replacement cost: The cost to replace the asset and the year that the cost data were calculated.
Useful life: The average life expectancy of the asset.
Asset criticality: A value assigned to each asset that indicates how essential it is to maintain service.
Typically, it is defined as a combined score based on the consequence of failure and the likelihood of
failure, as defined below:
» Consequence of failure: The social and economic cost if the asset fails.
» Likelihood of failure (condition): The estimated time until the asset fails, usually based on
condition.
Asset class: A group of assets that share the same characteristics (e.g., manholes, pipe segments).
Asset class is used to estimate replacement costs and useful life of groups of assets.
Nameplate information and asset specifications: Important information that is used to uniquely
describe an asset such as the manufacturer name, type of asset, serial number, size, material, etc. This
information is used for asset identification, replacement, and repair.
6.5.2.2 Maintenance and Operation Attributes
The following M&O attributes are captured as part of the operations, maintenance, and repair history
associated with each asset.
Asset ID: Most work orders should be associated with one or more assets. The asset ID is used to
uniquely associate work with individual assets.
Issue, cause, action: These codes are used to classify historical M&O activities associated with
corrective actions or unplanned maintenance.
» Issue: What is the problem observed in the field?
» Cause: What is the underlying cause of the problem?
» Action: What was done to address the cause?
Target start/stop date and actual dates: Recording the estimated and actual start and stop dates
for a work order can help in determining efficiency, planning workloads, and assessing repair costs.
Task costs: Task order costs include labor, parts, materials, and equipment, and should be accurately
recorded for each work order.
Task type: Task order types are used to group and compare different types of work activities. Typical
work order types include:
» Capital improvement: Work associated with a capital improvement project.
» Corrective maintenance: Work associated with an unplanned repair.
» Preventive maintenance: Work associated with a planned preventive maintenance activity.
» Predictive maintenance: Work associated with predictive measures (usually for critical assets).
Warranty information: Helps to determine assets that are under warranty and the warranty
maintenance requirements.
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6.6 Existing Staffing Requirements
Existing staffing requirements for M&O activities as discussed in this chapter were compiled and
evaluated to determine staffing requirements needed to efficiently operate, maintain, repair, and collect
and report the information necessary to properly operate the sewer system. Table 6.2 evaluates the
estimated time to conduct sewer system M&O tasks in the manner currently performed. Calculated days
for each M&O activity are for a single person performed over an eight-hour “day.” Therefore, an activity
that is performed quarterly and that requires four hours and two M&O staff to complete would result in
an annual requirement of four days.
Table 6.2 Sewer System Maintenance and Operation Task Summary
Work Activity FTE Days
Required
Annually
Assumptions/City Goal
Collection System Maintenance
Manhole inspection 35 Inspect once every 5 years, total of 5,500 manholes. Perform
32 inspections per day with one-person crew.
Manhole cleaning 28 One cleaning is required for every 20 inspections. Two-person crew,
2 hours each.
Manhole repair 40 40 repairs per year. Two-person crew, 4 hours each.
Pipeline cleaning 238 City goal is 220,000 feet per year (entire system in 7 years). A
three-person crew cleans approximately 3,000 feet of pipe per day.
CCTV inspection 370 City goal is 220,000 feet per year (entire system in 7 years). A two-person
crew inspects approximately 1,200 feet of pipe per day.
Pump Station Maintenance
Weekly routine maintenance 377 29 pump stations weekly (52 per year). Two-person crew, 1 hour each.
Monthly routine maintenance 174 29 pump stations monthly (12 per year). Two-person crew, 2 hours each.
Wet well cleaning 29 29 pump stations, 2 per year. Two-person crew, 2 hours each.
Other Sewer M&O Activities
Field operations 375 Two-person field crew for 0.75 of working days (1.5 FTE).
Customer service
requests/complaints
50 50 requests per year. Two-person crew, 4 hours each.
Data entry 130 20 hours per week total.
Subtotal 1,846
Total 2,172 Assumes 15% unquantified work
Total number of working days
available at current staffing level
2,140 Based on 5-year average
Current FTEs 10 2,045 days required divided by 200 days per FTE year.
Number of FTEs required 10.1
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Table 6.2 shows that the Utility is appropriately staffed with respect to meeting current City goals for
M&O activities. The analysis confirms the qualitative assessment of staffing adequacy provided by City
Maintenance staff. The City has consistently approached assessment and maintenance goals, but has little
room for deviation from normal procedure due to equipment failure, employee turnover, sickness,
additional training, etc. To mitigate shortfalls, areas of the collection system have received higher priority
due to frequent need for maintenance (older pipe in poor condition), relatively flat slopes, or high
concentrations of FOG. As the system grows and ages, there will likely be a need for additional staff to
perform more frequent cleaning and CCTV inspection of the entire system and to account for sewer
system expansion with overall city growth.
6.7 Potential Improvement Opportunities and Capital Needs
Based upon discussions with City staff and analysis of M&O activities discussed in this chapter, the
following improvement opportunities are available to the Utility. These opportunities are based on
improving existing services and improving work productivity:
Continue to integrate asset management with existing Utility management software (CMMS and GIS):
» Continue to add GIS attributes to known Utility assets.
» Perform and document condition assessments. Use defined criteria (such as leaks/cracks
observed, cleanliness, and other specific measures) and provide staff training to ensure
assessment consistency. Use NASSCO PACP-certified inspection programs to integrate inspection
results with CMMS.
» Use the results of condition assessments to move toward risk-based maintenance to best utilize
staff resources. For example, consistently high assessment scores would result in a lower risk or
need for maintenance/inspection, allowing M&O staff to be diverted to more essential activities.
» Use the compiled results of condition-based assessments to more systematically program repair,
rehabilitation and replacement of aging sewer pipes.
Complete CCTV inspection of inverted siphons that cross the Green River. The City does not have the
equipment to inspect these facilities; therefore, contract services will be required.
Hire a contractor to perform follow-up inspections of the City’s large diameter pipes (with a greater
than 18-inch diameter) to assess degradation since the previous inspections in 2020.
Initiate a program to inspect and correct deficiencies in portions of side sewers that are the City’s
responsibility, meaning the portions located within City rights-of-way. Such a program could include
adding additional “side launch” inspection capabilities to the City’s current CCTV equipment, hiring a
contractor to conduct inspections, or some combination of the two. The compiled results of those
inspections would be used to initiate repairs, whether they be done by current staff, or by one of
various methods of delivering a capital project.
Utilize new engineering staff to oversee the cleaning programs more proactively for grease traps and
interceptors by food service establishments, and more frequently educate the public about the
harmful effects of discharging FOG and other prohibited substances to the public sewer system.
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CHAPTER 7 CAPITAL IMPROVEMENT PLAN
This chapter discusses recommended capital projects for the City’s sewer system service area (SSSA). The
capital projects necessary to meet and maintain the City’s level of service (LOS), as described by the goals
and policies in Chapter 2 of this Plan, through the 20-year planning period (2025–2044) are presented as a
Capital Improvement Plan (CIP).
This Plan includes time frames, which represent the intended framework for future funding decisions and
within which future actions and decisions are intended to occur. However, these time frames are
estimates, and depending on factors involved in the processing of applications and project work, and
availability of funding, the timing may change. The framework does not represent actual commitments by
the City. Project identification is an ongoing effort requiring periodic evaluation. This CIP list was
developed based on incorporating the City’s Capital Facilities Plan (CFP), identification of equipment
limitations within the M&O group, and identification of areas of improvement.
7.1 Capital Improvement Plan
The CIP focuses on addressing known problems in a manner identifying cost-effective solutions that
incorporate the risks associated with substandard facilities and the uncertainty inherent in engineering
calculations/model simulations. A flow chart depicting the process of CIP development is shown in
Figure 7.1.
Figure 7.1 CIP Development Flow Chart
The CIP places emphasis on projects identified for implementation between 2025 and 2030, which
constitutes the 6-year planning period for utility capital funding requirements and staffing needs. This
period provides a realistic outer limit for accurately forecasting the annual cycle of utility projects and
priorities. This Plan also includes a 20-year CIP that examines long-term capital requirements, such as the
replacement of infrastructure as it exceeds its useful life. All projects in the CIP are consistent with the LOS.
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7.1.1 Project Priority
All projects in the CIP have been prioritized for implementation. Priority was assigned as one of three
designations. Projects in the top tier, or highest priority, are designated Priority 1; projects in the middle
tier are designated Priority 2; and projects with the lowest priority relative to the other projects are
considered Priority 3. The priority levels are based on how the proposed project impacts LOS. The project
descriptions below include the designated priority.
7.1.2 Project Cost
Estimated costs for each project are included in the CIP descriptions below. The costs are planning-level
estimates. Actual costs will depend on various factors at the time of design and construction including
labor and material costs. Estimated costs include an allowance for engineering, legal, and administration
fees, construction contingencies, contractor overhead, and general conditions. Permitting and land,
easement, and/or right-of-way acquisitions are not included in the cost estimate. The costs estimates are
in 2024 dollars. CIP Projects 1 and 2 are part of the City’s Capital Facilities Plan, where the City developed
the costs for these projects.
7.1.3 Project Summary
The CIP projects mainly consist of ongoing and programmatic capital improvements. Ongoing projects
include projects identified through previous studies. The City has previously allocated funding to each of
these projects, which are currently in various stages of execution. These projects must continue to receive
funding under the CIP until completion and have been included in this document to provide a complete
picture of the program. Programmatic projects are included in the CIP to provide funding for maintaining
and/or improving the LOS. These projects do not address a problem at a specific location but allocate
budget for addressing LOS goals citywide. As discussed in Chapter 5, the system hydraulic analysis
outlined six areas with future capacity deficiencies. Capacity-related capital projects have been included in
the six-year or 20-year planning period, specifically Projects 1 and 4, which are described below in
Section 7.2.2. The next Plan update, scheduled for 2032 and repeating every 10 years, has been included
as a cost in Table 7.1.
7.2 Capital Improvement Projects
7.2.1 Summary Table
Table 7.1 presents Annual Project Cost Summary for 6-Year and 20-Year CIP.
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Table 7.1 Annual Project Cost Summary for 6-Year and 20-Year CIP
Project
Number
Project Name Priority 2025 2026 2027 2028 2029 2030 2025-2030 2031-44 20-Year
Project Cost
CIP Allocation
(Growth/
Expansion)
CIP Allocation
(Repair/
Replacement)
1 Sanitary Sewer Repair and Replacement/System Improvements
(Includes Areas 2, 3, 5 and 6 identified in Figure 5.10)
1 $350,000 $1,800,000 $350,000 $1,800,000 $350,000 $1,800,000 $6,450,000 $15,050,000 $21,500,000 5% 95%
2 Street Utility Improvements 1 $300,000 $300,000 $300,000 $300,000 $300,000 $300,000 $1,800,000 $4,200,000 $6,000,000 100%
3 Side Sewer Inspections 1 $370,000 $370,000 $370,000 $370,000 $370,000 $370,000 $2,220,000 $1,480,000 $3,700,000 100%
4 Sewer Pump Station Replacement/Improvement 2 $0 $0 $400,000 $800,000 $1,000,000 $2,000,000 $4,200,000 $10,950,000 $15,150,000 25% 75%
5 Siphon Assessment and Cleaning 1 $0 $0 $580,000 $0 $0 $0 $580,000 $580,000 $1,160,000 100%
6 Pump Station Condition Assessment 1 $0 $105,000 $0 $0 $0 $0 $105,000 $105,000 $210,000 100%
7 Manhole Ring and Cover Replacement 2 $90,000 $90,000 $90,000 $90,000 $90,000 $90,000 $540,000 $1,260,000 $1,800,000 100%
8 Cleaning and Inspection of Large-Diameter Pipe (21-inches and larger) 2 $0 $0 $0 $950,000 $0 $0 $950,000 $1,900,000 $2,850,000 100%
9 Inflow and Infiltration Monitoring
(Area 1, Figure 5.10)
3 $0 $0 $0 $0 $0 $530,000 $530,000 $1,590,000 $2,120,000 100%
10 Roegner Park Sewer Capacity Improvements
(Area 4, Figure 5.10)
1 $0 $0 $120,000 $0 $0 $1,080,000 $1,200,000 $0 $1,200,000 60% 40%
11 Rainier Ridge Pump Station Replacement 1 $4,000,000 $0 $0 $0 $0 $0 $4,000,000 $0 $4,000,000 50% 50%
12 1st and R Sewer Replacement 2 $400,000 $0 $0 $0 $0 $0 $400,000 $0 $400,000 100%
13 Plan Update 1 $0 $0 $0 $0 $0 $0 $0 $800,000 $800,000 100%
Total Cost of Priority 1 Projects $5,020,000 $2,575,000 $1,720,000 $2,470,000 $1,020,000 $3,550,000 $16,355,000 $20,735,000 $37,090,000
Total Cost of Priority 2 Projects $490,000 $90,000 $ 490,000 $1,840,000 $1,090,000 $2,090,000 $6,090,000 $14,110,000 $20,200,000
Total Cost of Priority 3 Projects $0 $0 $0 $0 $0 $530,000 $530,000 $1,590,000 $2,120,000
Total CIP Cost $5,510,000 $2,665,000 $2,210,000 $4,310,000 $2,110,000 $6,170,00 $22,975,000 $36,435,000 $59,410,000
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7.2.2 Project Descriptions
Table 7.2 Project Descriptions
Project Number 1
Project Name Sanitary Sewer Repair and Replacement/System Improvements (Includes Areas 2, 3, 5 and 6 identified in Figure 5.10)
Location Throughout the SSSA
Priority 1
Schedule Ongoing, alternating a large project every other year
Problem Summary As infrastructure ages, failures begin to appear, causing LOS issues
Description This project is R&R of existing sewer lines, manholes, public side sewers, and other facilities. These assets will be identified through
modeled capacity evaluation, areas identified with elevated inflow and infiltration, CCTV inspection and routine cleaning and monitoring. This
particular program includes proposed projects that do not have an approved Project Management Plan, or are not associated primarily with
the Save Our Streets (SOS) or other transportation improvements. Anticipated projects include biannual, standalone, R&R projects for sewer
lines that are broken, misaligned, “bellied,” or otherwise require an inordinate amount of maintenance effort or present a risk of backup or
trench failure, and facilities that generate consistent odor complaints. Improvements identified through this program may be completed as
components of larger projects to gain efficiency in project costs. Additionally, system improvements that enhance the ability to maintain
service are included here. It is anticipated, as data such as pipe age, pipe material, condition rating (based on CCTV inspection), and
consequence of failure are consolidated in Cartegraph, that planning for the R&R program will be based on a systematic analysis of that
data. This project is planned to occur during both the 6- and 20-year CIPs.
Recommended
Predesign Refinements
As sewer mains are prioritized for replacement based on age, criticality and condition assessments, continual coordination with other utility
and street improvements should be made to increase efficiency.
Cost Estimate Costs developed by the City and carried over from the Capital Facilities Plan:
2025 - $350,000
2026 - $1,800,000
2027 - $350,000
2028 - $1,800,000
2029 - $350,000
2030 - $1,800,000
2031–44 - $15,050,000
20 Year Project Cost $21,500,000
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Project Number 2
Project Name Street Utility Improvements
Location Throughout the SSSA
Priority 1
Schedule Ongoing
Problem Summary As infrastructure ages, failures begin to appear, causing LOS issues.
Description This project is R&R of existing sewer lines, manholes, and public side sewers located within the project limits of City arterial transportation
projects and within the SOS program. Coordinating sanitary sewer utility projects with local street and arterial transportation projects can
lower the unit cost of pipe replacement by eliminating the pavement restoration component of the sewer project’s costs. This project is
planned to occur during both the 6- and 20-year CIPs.
Recommended
Predesign Refinements
Refine list as additional information becomes available.
Cost Estimate Costs developed by the City and carried over from the Capital Facilities Plan:
2025 - $300,000
2026 - $300,000
2027 - $300,000
2028 - $300,000
2029 - $300,000
2030 - $300,000
2031–44 - $4,200,000
20 Year Project Cost $6,000,000
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Project Number 3
Project Name Side Sewer Inspections
Location Throughout the SSSA
Priority 1
Schedule 2025-2034
Problem Summary The most common cause for sewer backups in the City in recent years has been the failure of side sewers. Throughout the City the condition
of lateral sewers on City property is generally unknown.
Description Use the services of a contractor to systematically inspect, via CCTV, lateral sewers within City rights-of-way and identify needed repairs.
Anticipate conducting approximately 1,600 inspections per year, for 10 years to capture information on 100% of these facilities. Initial
inspections will concentrate on areas known to primarily have concrete or clay side sewers.
Recommended
Predesign Refinements
Review existing CCTV and GIS information to identify gaps in material type and age that should also be collected during the program.
Cost Estimate $370,000 per year for 10 years
10 Year Project Cost $3,700,000
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Project Number 4
Project Name Sewer Pump Station Replacement/Improvements
Location Throughout the SSSA
Priority 1
Schedule 2025-30
Problem Summary The 2016 Pump Station Condition Assessment identified Rainier Ridge and 22nd Street pump stations as the highest priority stations, followed by
R Street and 8th Street pump stations for needing to be renovated, replaced, and/or relocated based on condition, safety concerns, and to
accommodate growth. The Rainer Ridge pump station project is ongoing and expected to be mostly complete under the prior CIP. This CIP
provides for a programmatic program to renovate or replace the next pump stations on a bi-annual basis following completion of Rainer Ridge. The
preliminary anticipated order for modification/replacement is:
1. 22nd Street Pump Station.
2. Riverside Pump Station.
3. Dogwood Pump Station Capacity Improvements.
4. R Street Pump Station.
5. 8th Street Pump Station.
It is anticipated that additional stations will require significant improvements and/or replacement within the 6 – 20 year planning horizon as well. The
estimated cost for 22nd Street is distributed between 2027 and 2030. The estimated costs for the next identified pump stations are used as a
placeholder for project value and distributed from 2031 to 2044. Following the results of the systematic pump station evaluation study updated
scheduled for 2026 (CIP project 6, Pump Station Inspections), the sequence or identification of pump stations requiring R&R, and detailed scope of
improvements for each of these stations will be developed.
Description This project will renovate or replace one pump station within the 6-year CIP and allocates money for R&R of unknown pump stations in the 6- to 20-
year CIP.
Recommended
Predesign Refinements
The costs below for all pump stations do not include provisions for new gravity or force main piping. The costs also assume that the existing
generators on site will be reused and that no additional land or site improvements are required.
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Project Number 4
Project Name Sewer Pump Station Replacement/Improvements
Cost Estimate 1. 22th Street Pump Station (2027-2030)
Based on 2016 Condition Assessment $4,200,000
Subtotal $4,200,000
2. Riverside Pump Station (2031-2033)
Package pump station $2,724,000
Project contingency (50% of all above costs) $1,362,000
Washington State and King County taxes (10.2% of construction costs) $417,000
Subtotal construction costs $4,503,000
Administration, engineering design, and permitting (30% of costs) $1,347,000
Subtotal $5,850,000
3. Dogwood Pump Station (2034-2035)
Package pump station $256,000
Project contingency (50% of all above costs) $128,000
Washington State and King County taxes (10.2% of construction costs) $39,000
Subtotal construction costs $423,000
Administration, engineering design, and permitting (30% of costs) $127,000
Subtotal $550,000
4. R Street Pump Station (2037-2039)
Package pump station $605,000
Project contingency (50% of all above costs) $302,500
Washington State and King County taxes (10.2% of construction costs) $93,000
Subtotal construction costs $1,000,500
Administration, engineering design, and permitting (30% of costs) $299,500
Subtotal $1,300,000
5. 8th Street Pump Station (2041-2043)
Package pump station $1,513,000
Project contingency (50% of all above costs) $756,500
Washington State and King County taxes (10.2% of construction costs) $231,000
Subtotal construction costs $2,500,500
Administration, engineering design, and permitting (30% of costs) $749,500
Subtotal $3,250,000
20 Year Project Cost $15,150,000
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Project Number 5
Project Name Siphon Assessment and Cleaning
Location Green River crossing near 26th Street NE; Green River crossing over 8th Street NE Bridge
Priority 1
Schedule 2027, repeated in 10 years, 2037 or as inspection results warrant
Problem Summary Currently, the City does not have the required equipment to complete inspections of the three siphons located within its collection system,
and little is known about their condition.
Description This project would inspect each siphon to determine and or update its condition and help set future inspection/cleaning protocols. The
siphons would be inspected prior to cleaning to determine what their in-situ condition is, then if required the lines would be cleaned and re-
inspected. Based on the debris level and condition of the pipes, future activities can be planned. Repeat in 10 years. For cost efficiencies, it
is assumed that all three sites would be completed under one contract. This project is planned to occur during both the 6- and 20-year CIPs.
Recommended predesign
refinements
Determine flow rates required for bypass pumping/trucking. Verify the assumption that the Green River crossing at 26th Street NE can be
diverted to each barrel without the need for additional bypass pumping.
Cost Estimate Green River crossing via Inverted Siphon at 26th Street NE: 488 feet of 8-inch and 12-inch HDPE
Initial CCTV $6,600
Cleaning $15,600
Post-cleaning CCTV $6,600
Subtotal $28,800
Green River Crossing via 8th Street NE Bridge: 1,191 feet of 14-inch CIP
Traffic control $117,000
Bypass pumping $124,000
Initial CCTV $8,000
Cleaning $23,000
Post-cleaning CCTV $8,000
Subtotal $280,000
Subtotal line-item costs $308,800
Project contingency (30% of all above costs) $92,600
Washington State and King County taxes (10.2% of construction costs) $40,900
Subtotal construction costs $442,300
Administration, engineering design, and permitting (30% of costs) $132,700
20 Year Project Cost $1,160,000
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Project Number 6
Project Name Pump Station Condition Assessment
Location Throughout the SSSA
Priority 1
Schedule 2026 and 2036
Problem Summary The City last completed a pump station condition assessment in 2016. Since that time, improvements/ upgrades to the stations have been
made, and the pump stations have continued to age. To adequately plan for future pump station investments, re-inspection is required.
Description The assessment will evaluate the apparent physical condition of existing stations and equipment. The purpose of the assessment is to
predict future serviceability and anticipated longevity for development of future CIPs.
Pump stations must meet the adopted system performance and reliability goals, and current code conditions, which may differ from those
that existed when the stations were originally built. The assessment would identify requirements necessary to meet the City’s goals,
requirements necessary for the health and safety of staff and the public, and suggestions that might increase reliability or reduce cost of
operations or maintenance.
Similar to the 2016 assessment, equipment checklists will be prepared for mechanical/hydraulic and electrical/control systems, site visits to
all stations will be made, as-built information and M&O manuals will be reviewed, and M&O personnel will be asked about known issues at
each location. Station operation will be observed, but no detailed physical testing of equipment, wiring, controls, or structures will be
included. The results of this assessment will compared to the previous inspection to identify observable degradation of especially the older
stations. To continue to stay up to date on pump station needs, it is recommended to repeat the inspection within the 20-year CIP.
Recommended
Predesign Refinements
None
Cost Estimate Engineering services for condition assessment $70,200
Subtotal line-item costs $70,200
Project contingency (30% of all above costs) $21,100
Subtotal inspection costs $91,300
Administration (15% of costs) $13,700
20 Year Project Cost $210,000
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Project Number 7
Project Name Manhole Ring and Cover Replacement
Location Throughout the SSSA
Priority 2
Schedule Ongoing
Problem Summary Frame and covers on sewer manholes are continually subject to impact from vehicles. While other portions of the of the manhole structures
generally remain in adequate condition, the frames and covers often to be replaced.
Description This project would establish an ongoing CIP to provide funds for continued replacement of frames and covers. These replacements may
occur as part of other City capital projects or as a stand-alone ring and cover replacement project. The cost for this effort is based on
historical, all-inclusive spending from previous City of Auburn work. This project is planned to occur during both the 6- and 20-year CIPs.
Recommended
Predesign Refinements
None.
Cost Estimate for year
2025 Frame and cover replacement annual $90,000
Subtotal line-item costs $90,000
Project contingency (0% of all above costs) $0
Washington State and King County taxes (10.2% of construction costs) Included
Subtotal construction costs $90,000
Administration, engineering design, and permitting (0% of costs) $0
20 Year Project Cost $1,800,000
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Project Number 8
Project Name Cleaning and Inspection of Large-Diameter Pipe
Location Throughout the SSSA
Priority 2
Schedule 2028, positioned in an off year of CIP 1, repeated in 10 years, 2037 or as initial inspection warrants.
Problem Summary M&O staff are not currently equipped to efficiently clean and inspect pipe larger than 18 inches in diameter and meet other goals for cleaning and
inspection.
Description This project would clean and internally inspect approximately half of the pipe owned by the City that is 21 inches and larger in diameter per effort.
This is approximately 39,000 feet, ranging in diameter from 21 inches up to 36 inches. This project is planned to occur during both the 6- and 20-
year CIPs.
Recommended
Predesign Refinements
Review existing CCTV inspection information to see if any of the large-diameter pipe has been inspected and determine if it needs cleaning.
Cost Estimate Cleaning $318,000
CCTV $106,000
Disposal $6,000
Traffic control $12,000
Subtotal line-item costs $442,000
Project contingency (50% of all above costs) $221,000
Washington State & King County taxes (10.2% of construction costs) $67,600
Subtotal construction costs $730,600
Administration, engineering design, and permitting (30% of costs) $219,000
20 Year Project Cost $2,850,000
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Project Number 9
Project Name Long Term Inflow and Infiltration Monitoring
Location Throughout the SSSA
Priority 3
Schedule Collect additional data during plan updates to monitor system conditions
Problem Summary Based on previous flow monitoring, I/I does not appear to be causing any large scale capacity issues within the city system, and limited areas of
elevated I/I have been identified. As part of future plan updates, the I/I should be evaluated and compared with past results to understand if
conditions are stable or changed. Excessive localized I/I can also be an indicator of poor sewer main and side sewer condition, and could help
prioritize ongoing sewer cleaning and replacement programs.
Description This project would monitor flow at key points in the collection system during plan updates. This data will then be used in for Comprehensive Sewer
Plan for modeling purposes and I/I assessment. Effort should be made to coordinate flow monitoring with the King County’s Decennial Flow
Monitoring.
Recommended
Predesign Refinements
Analyze prior flow metering data and hydraulic model results to develop a flow monitoring plan.
Cost Estimate Flow monitoring (four flow meters and two rain gauges for 6 months per year) $284,500
Subtotal line-item costs $284,500
Project contingency (30% of all above costs) $85,400
Washington State & King County taxes (10.2% of construction costs $37,700
Subtotal construction costs $407,600
Administration, engineering design, and permitting (30% of costs) $122,300
20 Year Project Cost $2,120,000
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Project Number 10
Project Name Roegner Park Sewer Capacity Improvements (Area 4, Figure 5.10)
Location Roegner Park between Oravetz Place to just north of the Lakeland Hills Pump Station.
Priority 1
Schedule Anticipated design to begin in 2027, with construction anticipated 2030. As King County proceeds with plans to replace the Lakeland Hills Pump
Station, staff will determine the optimal time to replace the lines depending on the siting and construction schedule of the County project.
Problem Summary Hydraulic modelling indicated that the sewer mains just upstream of the Lakeland Hills Pump Station will be surcharged during the design storm
event by the year 2044.
Description This project will replace the potentially surcharging sewer mains will larger pipes or pipes with a modified slope to increase their capacity. The
Lakeland Hill Pump Station is being replaced by King County and that project is expected to be complete in 2031. The City will work with County
staff during the design phase of each project to identify the most efficient time to construct both projects.
Recommended
Predesign Refinements
Coordinate final location and discharge elevations for the pump station wet well prior to design. Some of the surcharged pipes lie within an
easement across Auburn School District Athletic Fields. Construction should be scheduled to be least impactful to their operations.
Cost Estimate 2027 - $120,000
2030 - $1,080,000
6 Year Project Cost $1,200,000
Project Number 11
Project Name Rainier Ridge Pump Station Replacement
Location 126th Avenue SE within the Rainier Ridge Development
Priority 1
Schedule Design will be complete and preliminary construction will begin in 2024. The remainder of the construction will be completed in 2025.
Problem Summary The existing station is currently under capacity and has little room to expand, and the force main has needed repair several times over the past
20 years.
Description The project is replacing the existing Rainier Ridge Pump Station located by the edge of a cul-de-sac with a new station located on a City owned
parcel that includes a storm pond. The project involves installing gravity lines to accommodate the station relocation and a new force main to be
located within an easement on the Green River College property.
Recommended
Predesign Refinements
Project is underway
Cost Estimate 2025 - $4,000,000
Current Planning Period
Project Cost
$4,000,000
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Project Number 12
Project Name 1st and R Sewer Replacement
Location Between 1st Street NE and 2nd Street NE, east of ‘R’ Street NW.
Priority 2
Schedule Design work will begin 2024. Construction is anticipated to be completed in 2025.
Problem Summary There is an existing clay pipe that has significant sags which allow sediment and debris to collect and has caused periodic backups in homes
served by the line.
Description The project will replace the line with a new PVC pipe and reconnect all side sewers. The project requires significant coordination between the City
and residents, as the sewer main lies along abutting back property lines of the homes served by the line. The City does not have explicit easements
for the sewer main.
Recommended
Predesign Refinements
During design, contact will be made with each property owner to discuss rights-of-entry, permanent easements, etc.
Cost Estimate 2025 - $400,000
6 Year Project Cost $400,000
Project Number 13
Project Name Plan Update
Location Throughout the SSSA
Priority 1
Schedule Every 10 years
Problem Summary The City maintains a current Comprehensive Sewer Plan to meet Washington Administrative Code (WAC) Section 173-240-050.
Description The plan update is a combination of City and Consultant work. The update typically includes review of the existing system and practices, hydraulic
modeling, evaluation of system capacity, development of a 6 and 20 year capital improvement program, planning for enhancement of the utility’s
maintenance and operations, and final plan preparation and assembly
Recommended
Predesign Refinements
N/A
Cost Estimate $400,000
20 Year Project Cost $800,000
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CHAPTER 8 - FINANCIAL PLAN SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 8-1
CHAPTER 8 FINANCIAL PLAN
8.1 Introduction
This chapter was prepared by FCS GROUP to provide a financial program that allows the City sewer utility
to remain financially viable during the planning period. This financial viability analysis considers the
historical financial condition, current and identified future financial and policy obligations, M&O needs,
and the financial impacts of the capital projects identified in this Plan. Furthermore, this chapter provides
a review of the sewer utility’s current rate structure with respect to rate adequacy and customer
affordability.
8.2 Past Financial Performance
This section includes a historical summary of financial performance as reported by the City, including fund
resources and uses arising from cash transactions.
8.2.1 Comparative Financial Statements
The City legally owns and operates a sewer utility. Table 8.1 shows a summary of sewer fund resources
and uses arising from cash transactions for the previous six years (2017 through 2022). 2023 financial
statements were not available at the time the chapter was developed. Table 8.2 shows a summary of
assets and liabilities, with the difference between the two reported as “net position”. Increases and
decreases in net position are useful indicators of the financial position of the City’s utility. Noteworthy
findings and trends for the historical performance and condition of the City’s sewer utility are then
discussed.
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Table 8.1 Summary of Historical Fund Resources and Uses Arising from Cash Transactions
2017 2018 2019 2020 2021 2022
Operating Revenues
Charges for Service $26,369,496 $26,582,233 $26,559,461 $25,357,477 $27,402,561 $28,925,941
Other Operating Revenue $- $- $- $- $- $-
Total Operating Revenues $26,369,496 $26,582,233 $26,559,461 $25,357,477 $27,402,561 $28,925,941
Operating Expenses
Maintenance and Operations $19,055,093 $19,117,920 $19,553,676 $19,125,939 $19,244,065 $20,656,344
Administration $4,464,901 $4,509,602 $4,519,668 $4,556,451 $5,455,736 $4,115,950
Depreciation and Amortization $2,199,711 $2,234,136 $2,275,905 $2,337,347 $2,382,652 $2,478,902
Other Operating Expenses $6,648 $103,267 $- $- $- $-
Total Operating Expenses $25,726,353 $25,964,925 $26,349,249 $26,019,737 $27,082,453 $27,251,196
Operating Income (Loss) $643,143 $617,308 $210,212 $(662,260) $320,108 $1,674,745
Non-Operating Revenues (Expenses)
Interest Revenue $164,566 $350,596 $451,889 $120,844 $21,240 $335,524
Other Non-Operating Revenue $73,739 $71,039 $279,452 $36,167 $765 $21,860
Gain (Loss) on Scale of Capital Assets $- $- $- $- $- $-
Interest Expense ($258,270) (244,962) ($231,100) ($38,434) ($72,545) ($58,844)
Other Non-Operating Expense $- $- $- ($31,102) $- ($240,442)
Total Non-Operating Revenues (Expenses) $(19,965) $176,673 $500,241 $87,475 ($50,540) $58,098
Income (Loss) Before Contributions and Transfers $623,178 $793,981 $710,453 ($574,785) $269,568 $1,732,843
Capital Contributions $873,779 $2,299,751 $2,417,611 $2,801,816 $2,653,740 $666,761
Transfers In $800,000 $- $- $- $- $-
Transfers Out ($962,905) ($95,244) ($64,119) ($63,399) ($91,086) ($59,555)
Change in Net Position $1,334,052 $2,998,488 $3,063,945 $2,163,632 $2,832,222 $2,340,049
Net Position, January 1 $84,591,243 $85,925,295 $88,923,783 $91,987,728 $94,151,360 $96,983,582
Net Position, December 31 $85,925,295 $88,923,783 $91,987,728 $94,151,360 $96,983,582 $99,323,631
M&O Coverage Ratio 102.5% 102.4% 100.8% 97.5% 101.2% 106.1%
Net Operating Income as a % of Operating Revenue 2.4% 2.3% 0.8% -2.6% 1.2% 5.8%
Debt Service Coverage Ratio 5.41 5.40 4.70 5.59 6.94 10.68
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8.2.1.1 Findings and Trends
The City’s sewer charges for services increased from $26.4 million (M) in 2017 to $28.9M in 2022. The
average annual increase was approximately 1.9 percent per year, with a total increase of 9.7 percent
from 2017 to 2022. Charges for service increased each year, except for 2020 where revenues fell by
4.5 percent. Operating expenditures increased by $1.5M across the six years with an average annual
increase of 1.2 percent. Similar to revenues, expenditures dropped in 2020, but to a lesser extent,
decreasing by 1.3 percent. With growth in total operating revenues slightly outpacing growth in
operating expenses, operating income has been positive in five of the last six years, with 2020 being
the exception, where the utility posted an operating loss of $662,000. As many will note, 2020 was not
a typical year and likely affected by the global pandemic restrictions in place at the time.
The M&O coverage ratio (total operating revenues divided by total operating expenses) was
102.5 percent in 2017. With relatively stable revenues and expenses, this metric has maintained its
stability, ending 2022 at 106.1 percent. A ratio of 100.0 percent or greater shows that operating
revenue will successfully cover operating expenses, and the utility has remained above this ratio for
five of the last six years. Again, 2020 was the exception when the ratio decreased to 97.5 percent.
Net operating income as a percentage of operating revenue was 2.4 percent in 2017, decreasing to
negative 2.6 percent in 2020, before recovering back to 5.8 percent by 2022. Similar to the M&O
coverage ratio, these trends show how successfully operating revenue actually covered operating
expenses, with higher positive numbers being the best and negative numbers showing a need for
improvement. In addition, these trends demonstrate the ability of the utility to invest in capital,
whether through direct cash transfers or the issuance and servicing of debt.
The debt service coverage ratio measures the amount of cash flow available to meet principal and
interest payments. Typically, revenue bond debt service coverage requires a minimum factor of 1.25
during the life of the loans. This ratio is calculated by dividing cash or net operating income
(operating revenues less operating expenses) by annual revenue bond debt service. The debt service
coverage ratio for all outstanding revenue bond debt ended 2017 at 5.4, decreasing to 4.7 in 2020,
when revenues decreased, before rebounding to 10.7 by 2022. The fact that this ratio has sustained
levels higher than the minimum target of 1.25 indicates a stable capacity for new debt and will likely
result in favorable terms when entering the bond market.
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Table 8.2 Summary of Historical Comparative Statements of Net Position
2017 2018 2019 2020 2021 2022
Current Assets
Cash and Cash Equivalents $16,427,725 $15,768,440 $13,572,363 $16,258,323 $20,799,254 $22,972,741
Investments $- $2,004,660 $6,578,855 $4,521,754 $- $-
Restricted Cash:
Bond Payments $535,820 $535,243 $534,067 $451,161 $438,395 $438,395
Customer Deposits $79,473 $95,300 $77,353 $61,526 $61,527 $61,527
Other (Reserve for Bonds and Rate Stabilization) $516,173 $516,173 $516,075 $295,639 $295,639 $294,444
Customer Accounts $2,745,457 $3,516,161 $3,971,951 $4,063,452 $4,146,223 $4,504,623
Other Receivables $- $19,200 $19,200 $19,200 $- $-
Due From Other Governmental Units $- $- $- $- $- $-
Inventories $9,103 $8,316 $9,220 $13,117 $13,059 $12,867
Total Current Assets $20,313,751 $22,463,493 $25,279,084 $25,684,172 $25,754,097 $28,284,597
Noncurrent Assets
Long-Term Contracts, Leases and Notes $645,900 $623,400 $623,400 $623,400 $600,900 $578,400
Net Pension Asset $- $- $- $- $1,360,112 $533,150
Capital Assets Not Being Depreciated:
Land $1,695,023 $1,695,023 $1,695,023 $1,695,023 $1,695,023 $1,695,023
Intangible - Water Rights $- $- $- $- $- $-
Construction In Progress $1,121,482 $1,270,093 $243,140 $1,053,882 $865,150 $883,132
Capital Assets:
Buildings and Equipment $1,255,947 $1,274,801 $1,304,180 $1,304,180 $1,304,180 $1,304,180
Improvements Other Than Buildings $101,366,336 $103,581,870 $106,432,969 $109,169,429 $113,189,587 $114,548,300
Right of Use (Leases) $- $- $- $- $- $-
Less Accumulated Depreciation ($31,609,927) ($33,844,064) ($36,119,969) ($38,457,317) ($40,839,968) ($43,318,870)
Total Noncurrent Assets Net of Accumulated Depreciation $74,474,761 $74,601,123 $74,178,743 $75,388,597 $78,174,984 $76,223,315
Total Assets $94,788,512 $97,064,616 $99,457,827 $101,072,769 $103,929,081 $104,507,912
Deferred Outflows of Resources
Deferred Outflow from Bond Refunding $- $- $- $34,939 $34,939 $34,939
Deferred Outflow related to Pensions $200,138 $174,689 $187,172 $208,339 $193,419 $535,880
Total Deferred Outflows of Resources $200,138 $174,689 $187,172 $243,278 $228,358 $570,819
Current Liabilities
Current Payables $393,163 $409,231 $515,602 $895,896 $612,294 $516,801
Claims Payable $- $- $- $- $- $-
Loans Payable - Current $288,262 $288,262 $288,262 $288,262 $288,262 $288,262
Employee Leave Benefits - Current $103,747 $105,009 $94,806 $105,009 $153,048 $151,157
Leases Payable - Current $- $- $- $- $- $-
Revenue Bonds Payable - Current $262,685 $274,960 $287,235 $233,225 $244,273 $255,320
Payable From Restricted Assets:
Accrued Interest $279,081 $265,509 $251,338 $160,194 $146,794 $132,796
Deposits $79,473 $95,300 $77,353 $61,526 $61,527 $61,527
Other Liabilities Payable $172 $- $- $- $- $-
Total Current Liabilities $1,406,583 $1,438,271 $1,514,596 $1,744,112 $1,506,198 $1,405,863
Noncurrent Liabilities
Employee Leave Benefits $31,332 $37,988 $25,197 $37,988 $66,243 $57,986
Loans Payable $2,090,408 $1,802,146 $1,513,884 $1,225,622 $937,360 $649,098
Leases Payable $- $- $- $- $- $-
Revenue Bonds Payable $4,206,276 $3,924,924 $3,631,296 $3,341,264 $3,030,092 $2,707,872
Net Pension Liability $1,130,142 $771,584 $599,334 $588,136 $167,400 $328,393
Total Noncurrent Liabilities $7,458,158 $6,536,642 $5,769,711 $5,193,010 $4,201,095 $3,743,349
Total Liabilities $8,864,741 $7,974,913 $7,284,307 $6,937,122 $5,707,293 $5,149,212
Deferred Inflows Of Resources
Deferred Inflow Related to Leases $- $- $- $- $- $-
Deferred Inflow Related to Pensions $198,614 $340,609 $372,964 $227,565 $1,466,564 $605,888
Total Deferred Inflows of Resources $198,614 $340,609 $372,964 $227,565 $1,466,564 $605,888
Net Position
Net Investment in Capital Assets $67,517,050 $68,222,674 $68,368,733 $70,127,985 $72,152,380 $71,568,397
Restricted For:
Debt Service 237,092 250,664 264,737 196,971 148,845 242,859
Rate Stabilization $- $- $- $- $- $-
Pension Asset $- $- $- $- $- 533,150
Unrestricted 18,171,153 20,450,445 23,354,258 23,826,404 24,682,357 26,979,225
Total Net Position 85,925,295 88,923,783 91,987,728 94,151,360 96,983,582 99,323,631
Current Ratio 14.4 15.6 16.7 14.7 17.1 20.1
Debt to Net Position Ratio 0.08 0.07 0.06 0.06 0.05 0.04
Debt to Noncurrent Capital Assets Ratio 0.10 0.09 0.08 0.07 0.06 0.05
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8.2.1.2 Findings and Trends
The Current Ratio is calculated by dividing unrestricted current assets by current liabilities and
measures an entity’s ability to pay short-term obligations. This ratio ranges from a low of 14.4 in 2017,
ending at a high of 20.1 in 2022. Anything above 2.0 for this liquidity ratio is good.
The Debt to Net Position Ratio compares total debt to total net position, which is the difference
between current assets and liabilities. This ratio begins at 0.08 or 8 percent debt in 2017 and
decreases to 0.04 by 2022. For utilities, a ratio of 40 to 60 percent helps to moderate rate impacts by
spreading costs over a longer period of time. Based on these results, the City may consider utilizing
debt service for future capital investments, especially if it benefits system expansion.
The Debt to Noncurrent Capital Asset Ratio compares total debt to noncurrent capital assets, which
are also known as property, plant, and equipment. This ratio begins at 0.10 or 10 percent debt to
90 percent noncurrent assets in 2017. Noncurrent capital assets increase by $1.7M throughout the
six-year history while debt decreases $2.9M, and the ratio decreases to 5 percent by 2022. Similar to
the debt to net position ratio, these results indicate the utility has ample borrowing capacity and may
consider utilizing debt service for future capital investments, especially if it benefits system expansion.
A ratio of 40 percent debt to 60 percent equity or below is a general industry target
8.3 Financial Plan
The sewer utility is responsible for generating sufficient revenue to meet all of its costs. The primary
source of funding is derived from ongoing monthly service charges, with additional revenue coming from
late penalties and interest earnings. The City controls the level of user charges and, with City Council
approval, can adjust user charges as needed to meet financial objectives.
The financial plan can only confirm financial feasibility if it considers the total system costs of providing
sewer services, both operating and capital. To meet these objectives, the following elements have been
completed.
1. Capital Funding Plan - Identifies the total CIP obligations of the planning period. The plan defines a
strategy for funding the CIP, including an analysis of available resources from rate revenues, existing
reserves, connection charge revenues, debt financing, and any special resources that may be readily
available (e.g., grants, developer contributions, etc.). The capital funding plan impacts the financial
plan through the use of debt financing (resulting in annual debt service) and the assumed rate
revenue made available for capital funding.
2. Financial Forecast - Identifies future annual non-capital costs associated with the operation,
maintenance, and administration of the sewer system. Included in the financial plan is a reserve
analysis that forecasts cash flow and fund balance activity, along with testing for satisfaction of actual
or recommended minimum fund balance policies. The financial plan ultimately evaluates the
sufficiency of utility revenues in meeting all obligations, including cash uses such as operating
expenses, debt service, capital outlays, and reserve contributions, as well as any coverage
requirements associated with long-term debt. The plan also identifies the future adjustments required
to fully fund all utility obligations in the planning period.
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8.3.1 Capital Funding Plan
To properly evaluate future capital funding needs, capital costs were escalated by 3.00 percent annually to
the year of planned spending. The CIP developed for this Plan identifies $45.7M in escalated project costs
over the 10-year planning horizon from 2024-2033. The 20-year period, through 2043, includes $81.3M in
total escalated project costs.
A summary of the 10-year and 20-year CIPs are shown in Table 8.3. As shown, each year has varied capital
cost obligations depending on construction schedules and infrastructure planning needs.
Table 8.3 10-Year and 20-Year CIPs
Year Unescalated $ Escalated $
2024 $6,725,000 $6,725,000
2025 $5,510,000 $5,675,300
2026 $2,665,000 $2,827,299
2027 $2,210,000 $2,414,927
2028 $4,310,000 $4,850,943
2029 $2,110,000 $2,446,068
2030 $6,170,000 $7,367,303
2031 $1,720,000 $2,115,383
2032 $3,490,000 $4,421,028
2033 $5,240,000 $6,837,011
10-Year Total $40,150,000 $45,680,261
2034 - 2043 $22,845,000 $35,581,679
20-Year Total $62,995,000 $81,261,940
Table 8.4 provides more detail for the 10-year CIP.
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Table 8.4 10-Year CIP (Escalated $)
Project 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033
Sanitary Sewer Repair and Replacement/System Improvements $300,000 $360,500 $1,909,620 $382,454 $2,025,916 $405,746 $2,149,294 $430,456 $2,280,186 $456,671
Street Utility Improvements $347,000 $309,000 $318,270 $327,818 $337,653 $347,782 $358,216 $368,962 $380,031 $391,432
Side Sewer Inspections $- $381,100 $392,533 $404,309 $416,438 $428,931 $441,799 $- $- $-
Sewer Pump Station Replacement/Improvement $- $- $- $437,091 $900,407 $1,159,274 $2,388,105 $553,443 $1,140,093 $5,871,479
Siphon Assessment and Cleaning $- $- $- $633,782 $- $- $- $- $- $-
Pump Station Condition Assessment $- $- $111,395 $- $- $- $- $- $- $-
Manhole Ring and Cover Replacement $86,000 $92,700 $95,481 $98,345 $101,296 $104,335 $107,465 $110,689 $114,009 $117,430
Cleaning and Inspection of Large-Diameter Pipe (21-inches and larger) $- $- $- $- $1,069,233 $- $- $- $- $-
Inflow and Infiltration Monitoring $- $- $- $- $- $- $632,848 $651,833 $- $-
Roegner Park Sewer Capacity Improvements $- $- $- $131,127 $- $- $1,289,576 $- $- $-
Rainier Ridge Pump Station Replacement $4,400,000 $4,120,000 $- $- $- $- $- $- $- $-
1st and R Sewer Replacement $- $412,000 $- $- $- $- $- $- $- $-
Plan Update $300,000 $- $- $- $- $- $- $- $506,708 $-
Garden Avenue Realignment $200,000 $- $- $- $- $- $- $- $- $-
Jornada Park Access Imp $100,000 $- $- $- $- $- $- $- $- $-
M Street Widening $232,000 $- $- $- $- $- $- $- $- $-
Regional Growth Center Access Improvements $160,000 $- $- $- $- $- $- $- $- $-
2024 Sewer Repair and Replacement $600,000 $- $- $- $- $- $- $- $- $-
Total $6,725,000 $5,675,300 $2,827,299 $2,414,927 $4,850,943 $2,446,068 $7,367,303 $2,115,383 $4,421,028 $6,837,011
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8.4 Available Funding Assistance and Financing Resources
Feasible long-term capital funding strategies must be defined to ensure that adequate resources are
available to fund the CIP identified in this Plan. In addition to the City’s resources, such as accumulated
cash reserves, capital revenues, and rate revenues designated for capital purposes, capital needs can be
met from outside sources, such as grants, low-interest loans, and bond financing. The following is a
summary of the City’s internal and external resources.
8.4.1 City Resources
Resources appropriate for funding capital needs include accumulated cash in the capital fund, rate
revenues designated for capital spending purposes, developer contributions, and capital-related charges
such as system development charges. The first two resources will be discussed in the Fiscal Policies
section of the Financial Forecast. Capital-related charges are discussed below.
8.4.1.1 System Development Charges
A connection charge such as the City’s system development charge (SDC) refers to a one-time charge
imposed on new customers as a condition of connecting to the sewer system. The purpose of the SDC is
two-fold: 1) to promote equity between new and existing customers; and 2) to provide a source of
revenue to fund capital projects. Revenue can only be used to fund utility capital projects or to pay debt
service incurred to finance those projects. In the absence of a connection charge, growth-related capital
costs would be borne in large part by existing customers. In 2024, the City charged all new customers an
SDC of $3,544 per residential customer equivalent.
8.4.1.2 Local Facilities Charges
While a connection charge is the manner in which new customers pay their share of system investment
costs, local facilities charge funding is used to pay the costs of local facilities that connect each property
to the system’s infrastructure. Local facilities funding is often overlooked in rate forecasting because it is
funded upfront by either connecting customers and developers, or through an assessment to properties,
but never from rates.
A number of mechanisms can be considered toward funding local facilities. One of the following scenarios
typically occurs: (a) the utility charges a connection fee based on the cost of the local facilities (under the
same authority as the facilities assessment fee); (b) a developer funds an extension of the system to its
development and turns those facilities over to the utility (contributed capital); or (c) a local assessment is
set up called a Utility Local Improvement District (ULID/LID) or a Local Utility District, which collects tax
revenue from benefited properties.
A local facilities charge is a variation of the connection charge. It is a city-imposed charge to recover the
cost related to service extension to local properties. Often called a front-footage charge and imposed on
the basis of footage of the main “fronting” a particular property, it is usually implemented as a
reimbursement mechanism to a city for the cost of a local facility that directly serves a property. It is a
form of a connection charge and thus can accumulate up to 10 years of interest. It typically applies in
instances when no developer-installed facilities are needed through developer extension due to the prior
existence of available mains already serving the developing property.
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The developer extension is a requirement that a developer install on-site and sometimes off-site
improvements as a condition of extending service. These are in addition to the connection charge
required and must be built to City standards. Part of the agreement between the City and the developer
planning to extend service might include a latecomer agreement, resulting in a latecomer charge to new
connections for the developer extension.
Latecomer charges are a variation of developer extensions, whereby new customers connecting to a
developer-installed improvement make a payment to the City based on their share of the developer’s
cost. The City passes this charge on to the developer who installed the facilities. As part of the developer
extension process, this defines the allocation of costs and records latecomer obligations on the title of
affected properties. No interest is allowed, and the reimbursement agreement cannot exceed 20 years in
duration.
ULID/LID is another mechanism for funding infrastructure that assesses benefited properties based on the
special benefit received by the construction of specific facilities. Most often used for local facilities, some
ULIDs also recover related general facilities costs. Substantial legal and procedural requirements can make
this a relatively expensive process, and there are mechanisms by which a ULID can be rejected.
8.4.2 Outside Resources
This section outlines various grant, loan, and bond opportunities available to the City through federal and
state agencies to fund the CIP identified in the Plan.
8.4.2.1 Grants and Low-Cost Loans
Historically, federal and state grant programs were available to local utilities for capital funding assistance.
However, these assistance programs have been mostly eliminated, substantially reduced in scope and
amount, or replaced by loan programs. Remaining grant programs are generally lightly funded and
heavily subscribed. Nonetheless, the benefit of low-interest loans makes the effort of applying worthwhile.
8.4.2.2 Bond Financing
General Obligation Bonds - General obligation (G.O.) bonds are bonds secured by the full faith and
credit of the issuing agency, committing all available tax and revenue resources to debt repayment. With
this high level of commitment, G.O. bonds have relatively low interest rates and few financial restrictions.
However, the authority to issue G.O. bonds is restricted in terms of the amount and use of the funds, as
defined by the Washington constitution and statute. Specifically, the amount of debt that can be issued is
linked to assessed valuation.
Revised Code of Washington 39.36.020 states:
(2)(a)(ii) Counties, cities, and towns are limited to an indebtedness amount not exceeding one and
one-half percent of the value of the taxable property in such counties, cities, or towns without the
assent of three-fifths of the voters therein voting at an election held for that purpose.
(b) In cases requiring such assent counties, cities, towns, and public hospital districts are limited to a
total indebtedness of two and one-half percent of the value of the taxable property therein.
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While bonding capacity can limit the availability of G.O. bonds for utility purposes, these can sometimes
play a valuable role in project financing. A utility rate savings may be realized through two avenues: the
lower interest rate and related bond costs, and the extension of repayment obligation to all tax-paying
properties (not just developed properties) through the authorization of an ad valorem property tax levy.
Revenue Bonds – Revenue bonds are commonly used to fund utility capital improvements. The debt is
secured by the revenues of the issuing utility. With this limited commitment, revenue bonds typically bear
higher interest rates than G.O. bonds and require security conditions related to the maintenance of
dedicated reserves (a bond reserve) and financial performance (added bond debt service coverage). The
City agrees to satisfy these requirements by resolution as a condition of bond sale.
Revenue bonds can be issued in Washington without a public vote. There is no bonding limit, except
perhaps the practical limit of the utility’s ability to generate sufficient revenue to repay the debt and
provide coverage. In some cases, poor credit might make issuing revenue bonds problematic.
8.4.3 Capital Financing Strategy
An ideal capital financing strategy would include the use of grants and low-cost loans when debt issuance
is required. However, these resources are very limited and competitive in nature and do not provide a
reliable source of funding for planning purposes. It is recommended that the City pursue these funding
avenues but assume revenue bond financing to meet the needs which can’t be met by available cash
resources. The capital financing strategy developed to fund the CIP identified in this Plan assumes the
following funding resources:
Accumulated cash reserves,
Transfers of excess cash (over minimum balance targets) from the Operating Fund,
System development charge revenue, and
Interest earned on Capital Fund balances.
The cash resources described above are anticipated to fund 100.0 percent of the 10-year CIP and 20-year
CIP. No new debt is anticipated in the next 10-year or 20-year planning periods. Table 8.5 presents the
10-year and 20-year capital financing strategy.
Table 8.5 10-Year and 20-Year Capital Financing Strategy
Year Capital Expenditures System Development
Charge Revenue
Cash/Reserve
Funding
Total Financial
Resources
2024 $6,725,000 $325,000 $6,400,000 $6,725,000
2025 $5,675,300 $468,144 $5,207,156 $5,675,300
2026 $2,827,299 $484,117 $2,343,181 $2,827,299
2027 $2,414,927 $500,635 $1,914,291 $2,414,927
2028 $4,850,943 $517,717 $4,333,226 $4,850,943
2029 $2,446,068 $535,382 $1,910,687 $2,446,068
2030 $7,367,303 $553,649 $6,813,654 $7,367,303
2031 $2,115,383 $572,539 $1,542,844 $2,115,383
2032 $4,421,028 $592,074 $3,828,953 $4,421,028
2033 $6,837,011 $612,276 $6,224,736 $6,837,011
Subtotal $45,680,261 $5,161,534 $40,518,727 $45,680,261
2034-2043 $35,581,679 $7,397,790 $28,183,889 $35,581,679
Total $81,261,940 $12,559,324 $68,702,617 $81,261,940
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8.5 Financial Forecast
The financial forecast, or revenue requirement analysis, forecasts the amount of annual revenue that
needs to be generated by user rates. The analysis incorporates operating revenues, M&O expenses, debt
service payments, rate-funded capital needs, and any other identified revenues or expenses related to
operations. The objective of the financial forecast is to evaluate the sufficiency of the current level of rates.
In addition to annual operating costs, the revenue needs also include debt covenant requirements and
specific fiscal policies and financial goals of the City.
For this analysis, two revenue sufficiency tests have been developed to reflect the financial goals and
constraints of the City: cash needs must be met; and debt coverage requirements must be realized. In
order to operate successfully with respect to these goals, both tests of revenue sufficiency must be met.
Cash Test - The cash flow test identifies all known cash requirements for the City in each year of the
planning period. Typically, these include M&O expenses, debt service payments, rate-funded system
reinvestment funding or directly funded capital outlays, and any additions to specified reserve balances.
The total annual cash needs of the City are then compared to projected cash revenues using the current
rate structure. Any projected revenue shortfalls are identified, and the rate increases necessary to make up
the shortfalls are established.
Coverage Test - The coverage test is based on a commitment made by the City when issuing revenue
bonds and some other forms of long-term debt. For the purposes of this analysis, revenue bond debt is
assumed for any needed debt issuance. As a security condition of issuance, the City would be required per
covenant to agree that the revenue bond debt would have a higher priority for payment (a senior lien)
compared to most other expenditures; the only outlays with a higher lien are M&O expenses. Debt service
coverage is expressed as a multiplier of the annual revenue bond debt service payment. For example, a
1.00 coverage factor would imply that no additional cushion is required. A 1.25 coverage factor means
revenue must be sufficient to pay M&O expenses, annual revenue bond debt service payments, and an
additional 25.0 percent of annual revenue bond debt service payments. The excess cash flow derived from
the added coverage, if any, can be used for any purpose, including funding capital projects. Targeting a
higher coverage factor can help the City achieve a better credit rating and provide lower interest rates for
future debt issues.
In determining the annual revenue requirement, both the cash and coverage sufficiency tests must be
met, and the test with the greatest deficiency drives the level of needed rate increase in any given year.
8.5.1 Current Financial Structure
The City maintains a fund structure and implements financial policies that target management of a
financially viable and fiscally responsible sewer system.
8.5.1.1 Fiscal Policies
A summary of the key financial policies employed by the City, as well as those recommended and
incorporated in the financial program, are discussed below.
Operating Fund - Operating reserves are designed to provide a liquidity cushion to ensure that adequate
cash working capital will be maintained to deal with significant cash balance fluctuations, such as seasonal
fluctuations in billings and receipts, unanticipated cash expenses, or lower than expected revenue
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collections. Like other types of reserves, operating reserves also serve another purpose: they help smooth
rate increases over time. Target funding levels for an operating reserve are generally expressed as a
certain number of days of M&O expenses, with the minimum requirement varying with the expected
revenue volatility. Industry practice for utility operating reserves ranges from 30 days (8.0 percent) to
120 days (33.0 percent) of M&O expenses, with the lower end more appropriate for utilities with stable
revenue streams and the higher end more appropriate for utilities with significant seasonal or
consumption-based fluctuations.
This financial plan targets a minimum balance in the sewer utility Operating Fund equal to 60 days of
M&O expenses.
Capital Fund - A utility capital contingency reserve is an amount of cash set aside in case of an
emergency should a piece of equipment or a portion of the utility’s infrastructure fail unexpectedly. The
reserve also could be used for other unanticipated capital needs, including capital project cost overruns.
Industry practices range from maintaining a balance equal to 1.0 to 2.0 percent of fixed assets, an amount
equal to a 5-year rolling average of CIP costs, or an amount determined sufficient to fund equipment
failure (other than catastrophic failure). The final target level should balance industry practices with the
risk level of the City.
This financial plan targets a minimum balance in the sewer utility capital fund equal to 1.0 percent of fixed
assets.
Metro Sub Fund - The City’s sewer utility collects rate revenue for treatment expenses provided by King
County’s Sewer Treatment Division. Rates are collected to offset regional treatment expenses and are
treated as a pass-through for forecasting purposes. Similar to the operating and capital reserves, the
metro sub-fund reserve is meant to provide a liquidity cushion as well as provide for unexpected
contingencies.
The current metro sub-fund reserve target is set at $625,000, or approximately 3.0 percent of total
operating expenses.
System Reinvestment - System reinvestment funding promotes system integrity through ongoing repair
and replacement of system infrastructure. Ideally, a detailed asset management plan would guide the
level of rate funded system reinvestment, however, in absence of this level of effort, annual depreciation
expense is commonly used as a measure of the decline in asset value associated with routine use of the
system. Particularly for utilities that do not already have an explicit system reinvestment policy in place,
implementing a funding level based on full depreciation expense could significantly impact rates. An
alternative benchmark is annual depreciation expense net of debt principal payments on outstanding
debt. This approach recognizes that customers are still paying for certain assets through the debt
component of their rate and intends to avoid simultaneously charging customers for an asset and its
future replacement. The specific benchmark used to set system reinvestment funding targets is a matter
of policy that must balance various objectives, including managing rate impacts, keeping long-term costs
down, and promoting “generational equity” (i.e., not excessively burdening current customers with paying
for facilities that will serve a larger group of customers in the future).
The City is currently phasing in system reinvestment funding, aiming to reach 75.0 percent of annual
depreciation levels by 2029. With this phase-in strategy in place, the City is forecast to fund an average
of $1.7M in capital costs annually through rate revenues within the 10-year forecast period.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 8-13
Debt Management - It is prudent to consider policies related to debt management as part of a broader
utility financial policy structure. Debt management policies should be evaluated and formalized, including
the level of acceptable outstanding debt, debt repayment, bond coverage, and total debt coverage
targets. The City has one outstanding sewer revenue bond, as well as two Public Works Trust Fund loans,
which will both be repaid between 2024-2026. This forecast meets or exceeds the required revenue bond
debt service coverage of 1.25.
8.5.1.2 Financial Forecast
The financial forecast is primarily based upon the City’s budget through 2024 and takes into consideration
other key factors and assumptions needed to develop a complete portrait of the City’s annual sewer utility
financial obligations. The following is a list of the key revenue and expense factors and assumptions used
to develop the financial forecast.
Growth - Rate revenue escalation is based on a 0.40 percent growth rate developed based on actual
historical trends at the City. While the Plan assumes an annual growth rate of 1.33 percent for units
and 1.51 percent for flow, the City preferred a more conservative growth rate for the financial
planning purpose.
Revenue - The City has two general revenue sources: 1) sewer service charges (rate revenue); and
2) miscellaneous (non-rate) revenue. In the event of a forecasted annual shortfall, rate revenue can be
increased to meet the annual revenue requirement. For the purpose of this financial forecast, rate
revenues are forecasted to increase with customer growth. Non-rate revenues are held constant
throughout the forecast period, with the exception of interest earnings which are calculated based on
projected balances and assumed investment rates.
» King County Metro Service Charges - The City collects rate revenue for treatment expenses
provided by King County’s Sewer Treatment Division. Rates are collected to offset regional
treatment expenses and are treated as a pass-through for forecasting purposes.
System Development Charge Revenue - The existing system development charges are applied to
the projected new connections to forecast revenue. Based on the growth assumptions described
above, the connection charge will generate an average of $516,000 annually from 2024-2033. This
equates to an average of 126 new connections per year. Connection charge revenue is directed
towards annual capital needs.
Expenses - M&O expense projections are based on the City’s budget through 2024 with general cost
inflation increases of 3.0 percent, labor cost inflation of 5.0 percent for 2025 and 2026, decreasing to
3.0 percent thereafter and benefit cost inflation increases of 12.50 percent for 2025 and 2026,
decreasing to 5.5 percent per year thereafter. Budget figures were used for taxes through 2024. Future
taxes are calculated based on forecasted revenues and prevailing tax rates.
» King County Metro Service Charges - Rates are expected to increase by approximately
5.75 percent in 2025, followed by 7.00 percent annually from 2026-2028, increasing to
8.25 percent annually from 2029-2031 and finally 9.26 percent annually from 2032-2034 (Based
on the recent King County Sewer Treatment Division Financial Plan).
» Facilities G.O. Bond - In order to construct a new facility for the City, the sewer utility will fund
part of a General Obligation Bond totaling $38M. Beginning in 2025, the sewer utility’s
proportionate share of the bond is forecasted at $333,000 annually for the remainder of the
twenty-year forecast.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 8-14
Existing Debt - The sewer utility has three outstanding debt issues: one revenue bond, and two
Public Works Trust Fund (PWTF) loans. The 2020 refunding revenue bond has annual payments
averaging $375,000 that end after 2030 when the loan is repaid. The PWTF loans combined annual
payment is $292,000 in 2024 before the first PWTF loan is repaid, dropping the annual payment to
$182,000 for 2025 and 2026, when the second PWTF loan is repaid. The total annual existing debt
service obligations begin 2024 at $669,000, decreasing to $376,000 with the repayment of the PWTF
loans and will be completely repaid by 2030.
Future Debt - No new debt is anticipated in the 10-year and 20-year forecast periods.
Transfers to Capital - Operating fund balance above the minimum requirement is assumed to be
available to fund capital projects and projected to be transferred to the Capital Fund each year, if
needed. In total, the utility is forecast to fund $23.5M in capital projects from excess operating fund
cash.
Although the financial plan is completed through 2043, the rate strategy focuses on the shorter-term
planning period of 2024 through 2033. It is recommended that the City revisit the proposed rates every
two to three years to ensure that the rate projections developed remain adequate. Any significant
changes should be incorporated into the financial plan and future rates should be adjusted as needed.
Table 8.6, following, summarizes the annual revenue requirements based on the forecast of revenues,
expenditures, fund balances, and fiscal policies.
The financial forecast indicates that at existing rate levels the utility will become deficient in 2028 as
growth in expenses outpaces growth in revenues and the utility phases in rate funded system
reinvestment levels towards their fiscal policy goal of full annual depreciation funding.
8.5.1.3 City Funds and Reserves
Table 8.7 shows a summary of the projected Operating Fund and Capital Fund ending balances through
2033 based on the rate forecasts presented above. The Operating Fund is maintained at a minimum of
60 days of M&O expenses, and the Capital Fund balance continues to meet or exceed the minimum
target of 1.00 percent of fixed assets in every year of the forecast.
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CHAPTER 8 - FINANCIAL PLAN SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 8-15
Table 8.6 10-Year Financial Forecast
Revenue Requirement 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033
Revenues
Rate Revenues Under Existing Rates $10,794,348 $10,837,525 $10,880,876 $10,924,399 $10,968,097 $11,011,969 $11,056,017 $11,100,241 $11,144,642 $11,189,220
King County Metro Charge $22,023,000 $23,289,792 $24,920,237 26,666,572 28,536,789 30,894,541 33,444,109 36,205,476 39,558,279 43,218,789
Non-Rate Revenues $136,700 $139,751 $123,600 106,765 106,847 106,947 107,062 106,636 107,338 107,501
Total Revenues $32,954,048 $34,267,068 $35,924,713 $37,697,736 $39,611,733 $42,013,457 $44,607,188 $47,412,353 $50,810,259 $54,515,510
Expenses
Cash Operating Expenses $8,270,883 $8,529,150 $8,893,962 $9,137,639 $9,392,749 $9,657,439 $9,932,109 $10,217,105 $10,513,087 $10,820,294
King County Metro Charge $22,023,000 $23,289,792 $24,920,237 26,666,572 28,536,789 30,894,541 33,444,109 36,205,476 39,558,279 43,218,789
Existing Debt Service $668,964 $558,512 $557,058 375,738 375,001 373,528 373,774 $- $- $-
New Debt Service $- $- $- $- $- $- $- $- $- $-
Rate Funded System Reinvestment $198,877 $414,781 $761,873 $1,435,024 $1,780,240 $2,261,992 $2,372,501 $2,404,232 $2,470,547 $2,573,102
Total Expenses $31,161,724 $32,792,235 $35,133,130 $37,614,973 $40,084,780 $43,187,499 $46,122,493 $48,826,813 $52,541,914 $56,612,186
Total Surplus (Deficiency) $1,792,324 $1,474,834 $791,583 $82,763 ($473,047) ($1,174,043) ($1,515,305) ($1,414,459) ($1,731,655) ($2,096,675)
Annual Rate Adjustment 7.50% 2.25% 2.25% 2.25% 2.25% 2.25% .25% 2.25% 2.25%
Cumulative Annual Rate Adjustment 7.50% 9.92% 12.39% 14.92% 17.51% 20.15% 2.85% 25.62% 28.44%
Rate Revenues After Rate Increase $10,794,348 $11,650,340 $11,960,122 $12,278,142 $12,604,618 $12,939,775 $13,283,843 $13,637,061 $13,999,670 $14,371,921
Additional Taxes from Rate Increase - $119,726 $158,971 $199,404 $241,056 $283,962 $328,155 $373,669 $420,540 $468,806
Net Cash Flow After Rate Increase $1,792,324 $2,167,922 $1,711,859 $1,237,102 $922,417 $469,801 $384,367 $749,174 $702,834 $617,220
Coverage After Rate Increases 10.63 13.46 12.55 12.15 12.29 12.39 12.50 n/a n/a n/a
Table 8.7 Ending Cash Balance Summary
Ending Fund Balances 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033
Operating Fund $1,378,480 $1,421,525 $1,482,327 $1,522,940 $1,565,458 $1,609,573 $1,655,351 $1,702,863 $1,752,181 $1,803,382
Capital Fund $20,036,228 $17,969,817 $18,398,962 $19,300,174 $17,820,089 $18,775,281 $14,860,470 $16,572,125 $16,032,955 $13,107,670
Total $21,414,708 $19,391,342 $19,881,289 $20,823,114 $19,385,547 $20,384,854 $16,515,821 $18,274,988 $17,785,136 $14,911,052
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CHAPTER 8 - FINANCIAL PLAN SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 8-16
8.6 Current and Projected Rates
8.6.1 Current Rates
The existing sewer rates consist of a monthly fixed rate for the single family class. The non single family
class pays a monthly fixed rate plus a volume rate per hundred cubic feet (CCF) of flow over the monthly
usage allowance of 7.5 CCF per unit. In addition to the monthly rates charged by the City, separate rates
are applied to each account for treatment expenses provided by King County. Rates for treatment
expenses are set by the King County Sewer Division and are treated as a path-through. The exhibits below
summarize the existing and proposed City of Auburn rates, as well as the existing and proposed
King County Sewer Division rates. Total bills for customers will include both a City of Auburn and a
King County Treatment component.
Table 8.8 shows the existing City of Auburn and King County Sewer Division rate schedule.
Table 8.8 Existing Schedule of Rates
Description 2024 Existing
Monthly Fixed Charges
Single Family $30.04
Non Single Family $32.95
King County Treatment $55.11
Volume Charge per CCF (Over 7.5 CCF/unit)
Non Single Family $3.34
Non Single Family - King County $7.35
8.6.2 Projected Rates
The financial forecast discussed above indicates the need for annual rate adjustments in order to satisfy all
forecasted financial obligations. The City has adopted a 7.50 percent rate increase for 2025, with annual
2.25 percent increases forecasted from 2026 through 2033. Table 8.9 shows the projected rates with increases
applied uniformly to the sewer fixed and flow components of all classes, where applicable.
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CHAPTER 8 - FINANCIAL PLAN SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 8-17
Table 8.9 Proposed Schedule of Rates
Description Existing Proposed
2025 2026 2027 2028 2029 2030 2031 2032 2033
Monthly Fixed Charges
Single Family $30.04 $32.29 $33.02 $33.76 $34.52 $35.30 $36.09 $36.90 $37.73 $38.58
Non Single Family $32.95 $35.42 $36.22 $37.03 $37.86 $38.71 $39.58 $40.47 $41.38 $42.31
King County Treatment $55.11 $58.28 $62.36 $66.73 $71.41 $77.31 $83.69 $90.60 $98.99 $108.15
Volume Charge per CCF (over 7.5 CCF/unit)
Non Single Family $3.34 $3.59 $3.67 $3.75 $3.83 $3.92 $4.01 $4.10 $4.19 $4.28
Non Single Family - King County $7.35 $7.77 $8.32 $8.90 $9.52 $10.31 $11.16 $12.08 $13.20 $14.42
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CHAPTER 8 - FINANCIAL PLAN SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 8-18
8.7 Affordability
A common affordability metric used by the Environmental Protection Agency to measure the relative
financial impact sewer rates have on a community as a whole considers whether rates exceed 2.50 percent
of a community’s median household income. The average median household income for the City was
$87,406 between 2018 and 2022, expressed in 2022 dollars, according to the U.S. Census Bureau. The
2022 value is escalated based on the actual rate of inflation in 2023 of 4.31 percent and the 3.00 percent
inflation rate used in the financial forecast to project the median household income in future years. Table
8.10 presents the City’s monthly sewer bill, inclusive of the King County Sewer Division’s component,
projected to 2033 and tested against the 2.50 percent monthly affordability threshold.
Table 8.10 Community Affordability Test
Year Inflation Median
HH Income
2.5% Monthly
Threshold
Projected
Monthly Bill
% of Median
HH Income
2022 - $87,406 $- $- -
2023 4.31% $91,173 $- $- -
2024 3.00% $93,908 $195.64 $85.15 1.09%
2025 3.00% $96,726 $201.51 $90.57 1.12%
2026 3.00% $99,627 $207.56 $95.38 1.15%
2027 3.00% $102,616 $213.78 $100.49 1.18%
2028 3.00% $105,695 $220.20 $105.93 1.20%
2029 3.00% $108,866 $226.80 $112.61 1.24%
2030 3.00% $112,132 $233.61 $119.78 1.28%
2031 3.00% $115,495 $240.62 $127.50 1.32%
2032 3.00% $118,960 $247.83 $136.72 1.38%
2033 3.00% $122,529 $255.27 $146.73 1.44%
Applying the 2.50 percent monthly affordability test, the City’s rates are forecasted to remain within the
indicated affordability range through 2033.
8.8 Conclusion
The results of this analysis indicate that at existing rate levels the utility will be deficient beginning in 2028.
To keep pace with expenses and continue to uphase in rate funded system reinvestment towards
depreciation levels, the City has adopted a 7.50 percent rate increase in 2025. Forecasting into the future
a 2.25 percent annual rate increase will be required from 2026 through 2033. It is recommended that the
City regularly review and update the key underlying assumptions that compose the multi-year financial
plan to ensure that adequate revenues are collected to meet the City’s total financial obligations.
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APPENDICES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
APPENDIX A INTER-LOCAL AGREEMENTS AND
OUTSIDE AGENCY CORRESPONDENCE
A1: KING COUNTY
Sewage Disposal Service with Metro (Ordinance 2774, and Resolutions 1727 and 2090)
Franchise Agreement No. 14458
A2: SOOS CREEK WATER AND SEWER DISTRICT
Service Area Boundaries (Resolution 3321)
A3: CITY OF KENT
Sewer Service Boundaries (Resolution 3322)
A4: CITY OF PACIFIC
Sewer Service Boundaries (Resolutions 4335 and 730)
A5: MUCKLESHOOT INDIAN TRIBE
Sewer Service Boundaries (Resolution 4902)
Wastewater Conveyance Cost Sharing (Resolution 3660)
Temporary Sewage Lift Station Operation (Resolution 3502)
A6: LAKEHAVEN UTILITY DISTRICT
Sewer Service Boundaries (Resolutions 3651, 3824, and 2005-1038)
Sewer District's Sanitary Sewer Service Area (Resolution 5353)
A7: CITY OF ANGOLA
Sewer Service Boundaries (Resolution 3589)
Water And Sewer Utility Service, Billing, And Collection (Resolution 5505)
A8: CITY OF BONNEY LAKE
Sewer Service Boundaries (Resolutions 3760 and 3796)
Right of Way Use Permits (Resolutions 3873 and 1471)
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APPENDIX A1 KING COUNTY
Sewage Disposal Service with Metro (Ordinance 2774, and Resolutions 1727 and 2090)
Franchise Agreement No. 14458
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APPENDIX A2 SOOS CREEK WATER AND SEWER DISTRICT
Service Area Boundaries (Resolution 3321)
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APPENDIX A3 CITY OF KENT
Sewer Service Boundaries (Resolution 3322)
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APPENDIX A4 CITY OF PACIFIC
Sewer Service Boundaries (Resolutions 4335 and 730)
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APPENDIX A5 MUCKLESHOOT INDIAN TRIBE
Sewer Service Boundaries (Resolution 4902)
Wastewater Conveyance Cost Sharing (Resolution 3660)
Temporary Sewage Lift Station Operation (Resolution 3502)
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APPENDIX A6 LAKEHAVEN UTILITY DISTRICT
Sewer Service Boundaries (Resolutions 3651, 3824, and 2005-1038)
Sewer District's Sanitary Sewer Service Area (Resolution 5353)
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RESOLUTION NO. 5:3.5 3
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
AUBURN, WASHINGTON, AUTHORIZING THE MAYOR TO
EXECUTE AN AMENDMENT TO THE INTERLOCAL AGREEMENT
WITH THE LAKEHAVEN WATER AND SEWER DISTRICT FOR.
THE PURPOSE OF MODIFYING THE SEWER DISTRICT'S
SANITARY SEWER SERVICE AREA
WHEREAS, pursuant to RCW 35.A.11.040, Auburn has the legal authority
to exercise its powers and perform any of its functions as set forth in RCW 39.34;
and
WHEREAS, in January 2004 the Commissioners of the Lakehaven Utility
District adopted Resolution No. 2004-1006 authorizing the General Manager to
execute an interlocal agreement with Auburn, which agreement was
subsequently signed by the City of Auburn as authorized under Auburn
Resolution No. 3651; and
WHEREAS, in March 2005 the Commissioners of the Lakehaven Utility
District adopted Resolution No. 2005-1038 authorizing the General Manager to
execute an amendment to' the interlocal agreement with Auburn, which
amendment subsequently signed by the City of Auburn as authorized under
Auburn Resolution No. 3824; and
WHEREAS, the parties recognize the responsibility of public sanitary
sewer utilities to provide efficient and reliable service to their customers at
reasonable cost; and
Resolution No. 5353
03/14/18
Page 1 Page 379 of 1163
WHEREAS, portions of the Auburn sanitary sewer system have been
sized with sufficient wastewater conveyance capacity and are situated so as to
be capable of affording sewer service to a number of properties that lie within the
Lakehaven Sanitary Sewer Service Area and adjacent to Auburn's Sanitary
Sewer Service Area; and
WHEREAS, Auburn has evaluated sanitary sewer service issues relative
to the adjacent properties and determined that it is feasible for Auburn to provide
sanitary sewer service to those properties; and
WHEREAS, Lakehaven has evaluated the request and determined that
Lakehaven can transfer to Auburn that portion of its Sanitary Sewer Service Area
adjacent to the City of Auburn's infrastructure so that Auburn can provide sanitary
sewer service to those properties.
NOW, THEREFORE, THE COUNCIL OF THE CITY OF AUBURN,
WASHINGTON, RESOLVES as follows:
Section 1. The Mayor is hereby authorized to execute an amendment
to the Interlocal Agreement with Lakehaven Utility District, in substantial
conformity with the agreement attached hereto, marked as Exhibit A and
incorporated herein by this reference.
Section 2. The Mayor is hereby authorized to implement such
administrative procedures as may be necessary to carry out the directions of this
legislation.
Resolution No. 5353
03/14/18
Page 2 Page 380 of 1163
Section 3. This Resolution shall take effect and be in force upon
passage and signatures thereon.
DATED and SIGNED on this j t day of )1(Gtiteil_.) 2018.
CITY OF AUBURN
ANCYB ,k. S, M •Y• -
ATTEST:
Ai I
Da 'elle E. Daskam, City Clerk
APP' •V- i A 1
1f
la OR
1
D B. Heid, City Attorney
Resolution No. 5353
03/14/18
Page 3 Page 381 of 1163
EXHIBIT A TO RESOLUTION 5353
AMENDMENT NO. 2
TO THE LAKEHAVEN WATER AND SEWER DISTRICT AND CITY OF AUBURN
INTERLOCAL AGREEMENT ESTABLISHING
SANITARY SEWER SERVICE BOUNDARIES
Page 382 of 1163
AMENDMENT NO. 2
TO THE LAKEHAVEN WATER AND SEWER DISTRICT AND CITY OF AUBURN
INTERLOCAL AGREEMENT ESTABLISHING
SANITARY SEWER SERVICE BOUNDARIES
THIS AGREEMENT, made and entered into th•is 2- day of 2018,
by and between LAKEHAVEN WATER AND SEWER DISTRICT, a Washington municipal
corporation (hereinafter referred to as "Lakehaven"), and the CITY OF AUBURN, a
Washington municipal corporation, (hereinafter referred to as "Auburn"), both being duly
organized and existing under and by virtue of the laws of the State of Washington, as an
amendment to the Interlocal Agreement dated February 2, 2004, between the parties and
executed on the 8th day of January, 2004, and the 20th day of January, 2004, respectively
hereinafter referred to as "Original Agreement") as amended by Amendment No. 1 to
that agreement, dated February 22, 2005, between the parties and executed on the 10th
day of March, and the 22nd day of February, 2005, respectively.
WITNESSETH:
WHEREAS, in January 2004 the Commissioners of the Lakehaven Water and
Sewer District adopted Resolution No. 2004-1006 authorizing the General Manager to
execute an interlocal agreement with Auburn, which agreement was subsequently signed
by the City of Auburn as authorized under Auburn Resolution No. 3651; and
WHEREAS, in March 2005 the Commissioners of the Lakehaven Water and Sewer
District adopted Resolution No. 2005-1038 authorizing the General Manager to execute
an amendment to the interlocal agreement with Auburn, which amendment subsequently
signed by the City of Auburn as authorized under Auburn Resolution No. 3824; and
WHEREAS, the parties recognize the responsibility of public sanitary sewer utilities
to provide efficient and reliable service to their customers at reasonable cost; and
WHEREAS, portions of the Auburn sanitary sewer system have been sized with
sufficient wastewater conveyance capacity and are situated so as to be capable of
affording sewer service to a number of properties that lie within the Lakehaven Sanitary
Sewer Service Area and adjacent to Auburn's Sanitary Sewer Service Area; and
WHEREAS, Auburn has evaluated sanitary sewer service issues relative to the
adjacent properties and determined that it is feasible for Auburn to provide sanitary sewer
service to those properties; and
WHEREAS, Lakehaven has evaluated the request and determined that
Lakehaven can transfer to Auburn that portion of its Sanitary Sewer Service Area adjacent
to the City of Auburn's infrastructure so that Auburn can provide sanitary sewer service
to those properties.
Amendment No. 2 to the Lakehaven Water and Sewer District
And the City of Auburn Interlocal Agreement
Establishing Sanitary Sewer Service Boundaries
Page 383 of 1163
NOW, THEREFORE in consideration of their mutual covenants, conditions, and
promises, IT IS HEREBY AGREED by and between the parties hereto as follows:
ITEM ONE REVISION TO SERVICE AREA BOUNDARY
The parties have agreed to modify the mutual sewer service planning boundary as
established in the Original Agreement and modified by Amendment No. 1. The properties
depicted in Exhibit A and described in Exhibit B are hereby designated to be within the
City of Auburn's sanitary sewer service area and no longer within the Lakehaven Water
and Sewer District's sanitary sewer service area.
ITEM TWO REMAINING TERMS UNCHANGED:
That all other provisions of the Original Agreement as modified by Amendment No. 1 not
herein amended shall remain in full force and effect.
IN WITNESS WHEREOF the parties hereto have executed this agreement as of the day
and year first below written.
LAKEHAVEN WATER AND SEWER DISTRICT
Approved by Resolution No. 2.CAS—V1Ckbf the Lakehaven Water and Sewer District,
Federal Way, Washington, at its regular meeting held on the n_st day of
2018.
By:
Appro ed as to Form:
r
Amendment No. 2 to the Lakehaven Water and Sewer District
And the City of Auburn Interlocal Agreement
Establishing Sanitary Sewer Service Boundaries
Page 384 of 1163
CITY OF AUBURN
Approved by Resolutiop No. 5353 of the City of Auburn, Washington, at its regular
meeting held on the P day of 2018.
By:_.
NtG
Ba•ks, Mayor
Attest: Approve• as to
Ci rk Ci rAttorne
Amendment No. 2 to the Lakehaven Water and Sewer District
And the City of Auburn Interlocal Agreement
Establishing Sanitary Sewer Service Boundaries
Page 385 of 1163
EXHIBIT 'A'
Legal Description for Lakehaven to Auburn Sewer Service Transfer Area
A portion of thesoutheast quarter of the southwest quarter of Section 14 and the northeast
quarter of the northwest quarter of section 23,all in Township 21 North,Range 4 East,WM.,City
of Auburn, King County,Washington,,said:portion`:described as follows:
Commencing at an angle point in the westerly boundary of the Interlocal Agreement described.in
City of Auburn Resolution 3824 dated February 22, 2005,said angle point being at the
intersection of the north margin of State Highway No.18 and the southerly projection of the
centerline of 58th Avenue South;
Chence southerly along said westerly`boundary'and'said southerly..projection of 58th Avenue
South to the south margin of the lands conveyed to the City of Auburn,from the State of
Washington in deed recorded under King County Recording No.8709221482 and the point of
beginning for this boundary description;
Thence continuing southerly along said westerly boundary and said southerly projectionof 58th
Avenue South to the north margin of South 336th Street;
Thence westerly along said westerly boundary and the north margin of South 336th Street to the
west margin of 56th Avenue South;,
Thence southerly along said westerly boundary and:the west margin of 56th.Avenue'South.to.the
north margin of South 340th Street;`
Thence Westerly alongsaid'Westerly:,boundary-and said north'margin of South340th-Streetto the
east margin of 55th Avenue South;
Thence leaving said westerly boundary of City of Auburn Resolution 3824, northerly along said
east margin of 55th Avenue South to the south margin of South 336th Street;
Thence easterly along said south margin of South 336th Street to the southerly proJection of the
west line of the southeast quarter of the southwest quarter of said Section 14;
Thence northerly along said west line to said"south margin of the lands conveyed to the City of
Auburn in deed recorded under King County Recording No.8709221482;
Thence easterly along,said south margin to the point of beginning.
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Amendment No. 2 to the Lakehaven Water and Sewer District
And the City of Auburn Interlocal Agreement.
Establishing Sanitary Sewer Service Boundaries
Page 386 of 1163
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Amendment No. 2 to the Lakehaven Water and Sewer District
And the City of Auburn Interlocal Agreement
Establishing Sanitary Sewer Service Boundaries
Page 387 of 1163
LAKEHAVEN WATER AND SEWER DISTRICT
King County,Washington
Resolution No.2018-1306
A RESOLUTION of the Board of Commissioners of the Lakehaven Water
and Sewer District, King County, Washington, approving Amendment No. 2 to the
sanitary sewer service boundary with the City of Auburn, authorizing the General
Manager to execute an agreement reflecting such amendment on behalf of the
District and amending District Resolution No. 2004-1006.
WHEREAS, the District is authorized under state law to provide water and sanitary sewer
service pursuant to adopted comprehensive plans, and
WHEREAS, under authority of existing regulatory requirements, the District and the City
of Auburn have determined to establish, by interlocal agreement, service area boundaries between
their respective water and sewer systems, and
WHEREAS, since the adoption of the sewer service area boundary, Auburn and the
District have concluded that certain territory within the area designated for sewer service by the
District would be better served by Auburn,and
WHEREAS, the parties have previously executed Amendment No. 1 to the interlocal
agreement to transfer service jurisdiction of an area to Auburn,and
WHEREAS,Auburn and the District have discussed terms for a second amendment which
would transfer the service jurisdiction for an additional area to Auburn, and
WHEREAS, the Board believing the transfer of service jurisdiction to be in the best
interests of the District
NOW,THEREFORE,BE IT RESOLVED as follows:
1. The District hereby approves an Amendment No. 2 to the "Interlocal Agreement
Establishing Sanitary Sewer Service Boundaries" with the City of Auburn to provide
that the area referenced in Exhibit "A" shall hereinafter be included within the service
area jurisdiction of the City of Auburn.
2. The General Manager is hereby directed to execute an agreement with Auburn to
provide for such transfer.
3. Resolution No. 2004-1006 is hereby amended in part to reflect the transfer of service
jurisdiction herein.
4. This Resolution shall be effective on the date of adoption below.
Resolution No. 2018-1306 Page 1
Page 388 of 1163
ADOPTED by the Board of Commissioners of Lakehaven Water and Sewer District, King
County, Washington,at an open public meeting this %2 ``day of April,2018.
AF1'BST
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President an Commissioner Yea Nay Abstain
1644-0-6---
Vice President and Commissioner Yea Nay Abstain
Secretary and Commissioner Yea Nay Abstain
7Ji , 0
ommissioner Yea Nay Abstain
Commissioner Yea
1
Nay Abstain
i (' 'I
Approved as to form: t
General Counsel
Resolution No. 2018-1306 Page 2
Page 389 of 1163
Lalceliaven
WATER & SEWER DISTRICT
316271st Avenue South • P.O.Box 4249 • Federal Way,WA 98063-4249
253-941-1516 Federal Way • 253-927-2922 Tacoma • www.lakehaven.org
RECEIVED
April 17, 2018
APR 19 2018
Robert Elwell, P.E. City of Auburn
City of Auburn Wit_Eraginceedeig BeMoes
25 West Main Street
Auburn, Washington 98001-4998
RE: AUBURN-LAKEHAVEN SEWER INTERLOCAL AGREEMENT AMENDMENT (NO. 2)
Revised Sewer Service Area Boundary
Mr. Elwell:
Enclosed is an original signed copy of Lakehaven Resolution 2018-1306, adopted by
Lakehaven's Board of Commissioners on 4/12/18, along with an original of the referenced
ILA Amendment signed by the Board President & Lakehaven's General Counsel; amending
the sewer service area boundary in the vicinity of southeast Peasley Canyon. At this time,
Lakehaven will consider the service area boundary amended accordingly. Thanks for your
assistance in this matter.
Let me know if there's any questions or if additional information is needed.
Sincerely,
Brian Asbury
Development Engineering Supervisor
Enclosures
Page 390 of 1163
APPENDIX A7 CITY OF ANGOLA
Sewer Service Boundaries (Resolution 3589)
Water And Sewer Utility Service, Billing, And Collection (Resolution 5505)
Page 391 of 1163
Page 392 of 1163
Page 393 of 1163
Page 394 of 1163
Page 395 of 1163
Page 396 of 1163
Page 397 of 1163
Page 398 of 1163
Page 399 of 1163
Page 400 of 1163
Page 401 of 1163
Page 402 of 1163
RESOLUTION NO. 5505
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
AUBURN, WASHINGTON, AUTHORIZING THE MAYOR TO
EXECUTE AN INTERLOCAL AGREEMENT CONCERNING
WATER AND SEWER UTILITY SERVICE, BILLING, AND
COLLECTION
WHEREAS, both Algona and Auburn (each a "Party" and collectively "the Parties")
are "public agencies" as defined by Chapter 39.34 RCW, and are authorized by that
statute to cooperate on a basis of mutual advantage in order to provide for services and
facilities;
WHEREAS, Algona owns and operates a water utility ("Algona Water System")
and a sanitary sewer utility ("Algona Sewer System"), which collectively provide water and
sewer service to customers located within Algona's utility service area(s);
WHEREAS, Auburn owns and operates a water utility ("Auburn Water System")
and a sanitary sewer utility ("Auburn Sewer System"), which collectively provide water
and sewer service to customers located within Auburn's utility service area(s);
WHEREAS, there are three parcels located within the City limits of Auburn at 1611
West Valley Highway S (APN 2321049039), 1743 West Valley Highway S (APN
3751600709) and 1929 West Valley Highway S (APN 3751600711) (collectively, "West
Valley Parcels") that are connected to and served by the Auburn Water System, but are
also connected to and served by the Algona Sewer System;
WHEREAS, there are four parcels located within the City limits of Algona at 502
Boundary Boulevard (APN 0301510060), 512 Boundary Boulevard (APN 0301510120),
1196 Industry Drive N (APN 0301510190) and a vacant parcel located between 502 and
512 Boundary Boulevard (APN 0301510100) (collectively, "Boundary Boulevard Parcels")
Resolution No. 5505
4/6/2020
Page 1 of 3 Rev. 2018
Page 403 of 1163
that are connected to and served by the Algona Water Utility, but are also connected to
and served by the Auburn Sewer System;
WHEREAS, the dissociation between the water and sewer service connections for
the West Valley Parcels and Boundary Boulevard Parcels is longstanding and of
uncertain origin;
WHEREAS, to the best of the Parties' mutual belief and understanding, said
dissociation may have resulted from various factors, including without limitation the timing
of annexation, development and/or utility connection of the underlying properties;
WHEREAS, the water and sewer utility usage of the West Valley Parcels has
historically been roughly equivalent to the water and sewer utility usage of the Boundary
Boulevard Parcels;
WHEREAS, each Party's billing and collection for sanitary sewer service usage is
based primarily upon water usage, such that each Party may approximately measure, bill
and collect for a customer's sewer utility service by measuring the volume of water service
provided to that customer;
WHEREAS, the significant expense of connecting the West Valley Parcels to the
Auburn Sewer System, and of connecting the Boundary Boulevard Parcels to the Algona
Sewer System, would be greatly disproportionate to the practical benefits resulting from
such connection, which would be nominal;
WHEREAS, the Parties are currently evaluating permanent options to address the
issue of water and sewer utility service for the West Valley Parcels and Boundary
Boulevard Parcels and will continue to engage in discussions regarding the same as the
Resolution No. 5505
4/6/2020
Page 2 of 3
Rev. 2018
Page 404 of 1163
lines require repair or replacement or as development in the respective area(s) occurs;
and
WHEREAS, as an interim approach, the Parties mutually desire to simplify the
billing relationships and to contractually define their respective rights, obligations costs
and liabilities regarding the provision of water and sewer utility service to the West Valley
Parcels and the Boundary Boulevard Parcels while a permanent solution is identified and
implemented.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF AUBURN,
WASHINGTON, RESOLVES as follows:
Section 1. The Mayor is authorized to execute an interlocal agreement with the
City of Algona, in substantial conformity with the agreement attached as Exhibit A.,
Section 2. The Mayor is authorized to implement those administrative
procedures necessary to carry out the directives of this legislation.
Section 3. This Resolution will take effect and be in full force on passage and
signatures.
Dated and Signed this 61h day of April, 2020.
ATTEST:
Shawn Campbell, MMC,City Clerk
Resolution No. 5505
4/6/2020
Page 3 of 3
CITY OF AUBURN
NNANCY B KUS, MAYOR
APPROVED AS TO FORM-
endra Comeau, City Attorney
Rev. 2016Page 405 of 1163
EXHIBIT A TO RESOLUTION 5505
INTERLOCAL COOPERATION AGREEMENT CONCERNING WATER AND SEWER
UTILITY SERVICE, BILLING AND COLLECTION
Page 406 of 1163
INTERLOCAL COOPERATION AGREEMENT
Water and Sewer Utility Service,Billing and Collection
THIS INTERLOCAL COOPERATION AGREEMENT ("Agreement") is entered into as of
2020("Effective Date")by and between the City of Algona, Washington("Algona")and the
City of Auburn,Washington("Auburn"),both municipal corporations organized under the laws of the State
of Washington, pursuant to the Interlocal Cooperation Act, Chapter 39.34 RCW.
Recitals
A. Both Algona and Auburn (each a"Party" and collectively '`the Parties") are"public agencies"as
defined by Chapter 39.34 RCW,and are authorized by that statute to cooperate on a basis of mutual
advantage in order to provide for services and facilities.
B. Algona owns and operates a water utility ("Algona Water System") and a sanitary sewer utility
Algona Sewer System"),which collectively provide water and sewer service to customers located
within Algona's utility service area(s).
C. Auburn owns and operates a water utility ("Auburn Water System") and a sanitary sewer utility
Auburn Sewer System"),which collectively provide water and sewer service to customers located
within Auburn's utility service area(s).
D. There are three parcels located within the City limits of Auburn at 1611 West Valley Highway S
APN 2321049039), 1743 West Valley Highway S (APN 3751600709) and 1929 West Valley
Highway S (APN 3751600711) (collectively, "West Valley Parcels") that are connected to and
served by the Auburn Water System, but are also connected to and served by the Algona Sewer
System.
E. There are four parcels located within the City limits of Algona at 502 Boundary Boulevard(APN
0301510060), 512 Boundary Boulevard (APN 0301510120), 1196 Industry Drive N (APN
0301510190) and a vacant parcel located between 502 and 512 Boundary Boulevard (APN
0301510100)(collectively,"Boundary Boulevard Parcels")that are connected to and served by the
Algona Water Utility, but are also connected to and served by the Auburn Sewer System.
F. The dissociation between the water and sewer service connections for the West Valley Parcels and
Boundary Boulevard Parcels is longstanding and of uncertain origin. To the best of the Parties'
mutual belief and understanding, said dissociation may have resulted from various factors,
including without limitation the timing of annexation,development and/or utility connection of the
underlying properties.
G. The water and scwer utility usage of the West Valley Parcels has historically been roughly
equivalent to the water and sewer utility usage of the Boundary Boulevard Parcels.
H. Each Party's billing and collection for sanitary sewer service usage is based primarily upon water
usage, such that each Party may approximately measure, bill and collect for a customer's sewer
utility service by measuring the volume of water service provided to that customer.
I nterlocal Cooperation Agreement
Concerning Water and Sewer Utility
Service, Billing, and Collection.
2
Page 407 of 1163
1. The significant expense of connecting the West Valley Parcels to the Auburn Sewer System, and
of connecting the Boundary Boulevard Parcels to the Algona Sewer System, would be greatly
disproportionate to the practical benefits resulting from such connection, which would be nominal.
J. The Parties are currently evaluating permanent options to address the issue of water and sewer
utility service for the West Valley Parcels and Boundary Boulevard Parcels and will continue to
engage in discussions regarding the same as the lines require repair or replacement or as
development in the respective area(s) occurs.
K. As an interim approach, the Parties mutually desire to simplify the billing relationships and to
contractually define their respective rights, obligations costs and liabilities regarding the provision
of water and sewer utility service to the West Valley Parcels and the Boundary Boulevard Parcels
while a permanent solution is identified and implemented.
NOW, THEREFORE, in consideration of the mutual benefits set forth herein, and other good and
sufficient consideration the receipt and sufficiency of which are mutually acknowledged, including without
limitation the public interest, the Parties hereby agree as follows:
Terms
Section 1. Authority and Purpose. This Agreement is executed pursuant to Chapter 39.34 RCW
as a cooperative endeavor of the Parties. The purpose of this Agreement is to establish a contractual
relationship governing the provision of water and sewer utility service for the West Valley Parcels and the
Boundary Boulevard Parcels, and to set forth the Parties' respective rights, obligations, costs and liabilities
regarding this undertaking. This Agreement shall be reasonably construed in furtherance of said purpose.
Section 2. West Valley Parcels --Connection Service Bill ing and Collection.
2.1 Connection and Service. The West Valley Parcels shall remain connected to and served
by the Auburn Water System and the Algona Sewer System.
2.2 Billing and Collection. Auburn shall be exclusively responsible for billing and collecting
utility payments from the West Valley Parcels for both water and sewer utility service pursuant to Auburn's
adopted utility rate schedule(s). Auburn shall maintain accurate records of water and sewer usage, billing
and payments with respect to the West Valley Parcels, but shall not be required to remit any such payments
to Algona except as expressly set forth in this Agreement.
Section 3. Boundaq Boulevard Parcels—Connection. Service Billing and Collection.
3.1 Connection and Service. The Boundary Boulevard Parcels shall remain connected to and
served by the Algona Water System and the Auburn Sewer System.
3.2 Billing and Collection. Algona shall be exclusively responsible for billing and collecting
utility payments from the Boundary Boulevard Parcels for both water and sewer utility service pursuant to
Algona's adopted utility rate schedule(s). Algona shall maintain accurate records of water and sewer usage,
billing and payments with respect to the Boundary Boulevard Parcels, but shall not be required to remit any
such payments to Auburn except as expressly set forth in this Agreement.
Section 4. Inspection Rights, Annual Review.
Interlocal Cooperation Agreement
Concerning Water and Sewer Utility
Service, Billing, and Collection.
Page 408 of 1163
4.1 Inspection Rights. Each Party shall, upon written request, promptly provide the other Party
with access to and copies of its utility billing records for the West Valley Parcels and the Boundary
Boulevard Parcels,
4.2 Annual Review. Upon the request of Algona, Auburn shall provide to Algona a written
summary of the water and sewer utility billing and collection records of the West Valley Parcels for the
preceding year. Upon the request of Auburn, Algona shall provide a written summary of the water and
sewer utility billing and collection records of the Boundary Boulevard Parcels for the preceding year. Upon
receipt of the above -referenced written summaries, the Parties shall confer as deemed mutually appropriate
to detennine whether to continue, terminate or amend this Agreement.
Section 5. Ownership, Regulation Operation. Maintenance and Repairs. Except as otherwise
expressly provided herein, nothing in this Agreement shall be construed as altering or otherwise modifying
the Parties' respective rights, duties, obligations and liabilities concerning their respective water and sewer
utility systems. Without limitation of the foregoing: Auburn shall own and remain exclusively responsible
for all regulation, operation, maintenance and repairs of the Auburn Water System and the Auburn Sewer
System, and (ii) Algona shall own and remain exclusively responsible for all regulation, operation,
maintenance and repairs of the Algona Water System and the Algona Sewer System.
Section 6. Meter Removal. Algona may in its sole discretion remove or otherwise
decommission Algona's utility service meters for any or all of the West Valley Parcels. Algona agrees to
provide at least five business days' notice to Auburn of any meter removal or decommissioning.
Section 7. Term. This Agreement shall be in force as of the Effective Date written above following
mutual execution by the Parties, and shall remain in effect for ten (10) years thereafter ("Term"), unless
terminated earlier in accordance with Section 8. The Parties may at their option extend the Term for one
or more mutually agreed upon periods through a writing signed by both Parties.
Section 8. Termination. Either Party may terminate this Agreement with or without cause by
providing the other Party with one hundred and eighty (180) days written notice of its intent to terminate.
Section 9. Administration: No Separate Entity Created. The Algona Public Works Director and
the Auburn Public Works Director shall serve as joint administrators of this Agreement. No separate legal
entity is formed hereby.
Section 10. ProAc uisition Retention and Disposition. No joint acquisition of real or
personal property is contemplated by this Agreement. Except as provided in this section, any other real or
personal property acquired by a Party shall remain within the sole and exclusive ownership and control of
that Party following the termination or expiration of this Agreement.
Section 11. Indemnification. Each Party shall defend, indemnify and hold the other Party, its
officers, officials, employees and volunteers harmless from and against any and all claims, injuries,
damages, losses or suits including attorney fees, arising out of or resulting from the acts, errors or omissions
of the first Party in its performance of this Agreement. Without prejudice to the foregoing, it is expressly
understood that each Party's obligations under this section shall include exclusive responsibility for any
claims, injuries, damages, losses or suits arising out of or otherwise relating to the content and validity of
that Party's codes, ordinances and regulations, and that the other Party, its officers, officials, employees
and volunteers shall have no liability or responsibility whatsoever therefore.
Interlocal Cooperation Agreement
Concerning Water and Sewer Utility
Service, Billing, and Collection.
4 Page 409 of 1163
It is further specially and expressly understood that the indemnification provided herein constitutes
each Party's waiver of immunity under industrial insurance, Title 51 RCW, solely for the purposes of this
indemnification. This waiver has been mutually negotiated by the Parties.
The provisions of this section shall survive the expiration or termination of this Agreement.
Section 12. Governinz. Law and Venue; Attomys' Pees. This Agreement shall be governed by
the laws of the State of Washington. The venue for any action arising out of this Agreement shall be the
Superior Court for King County, Washington. The substantially prevailing Party in any such action shall
be entitled to an award of its reasonable attorneys' fees.
Section 13. No Employment Relationship Created. The Parties agree that nothing in this
Agreement shall be construed as creating an employment relationship between Algona and any employee,
agent, representative or contractor of Auburn, or between Auburn and any employee, agent, representative
or contractor of Algona.
Section 14. Notices. Notices to Algona shall be sent to the following address:
City of Algona
Attn: Public Works Director
200 Washington Blvd.
Algona, WA 98001
Notices to Auburn shall be sent to the following address:
City of Auburn
Attn: Public Works Director
25 W. Main Street
Auburn, WA 98001
Section 15. Duty. to File or Post Agreement. Prior to this Agreement's entry into force, Auburn
shall, pursuant to RCW 39.34.040, (1) file this Agreement with the King County Auditor's Office, or (2)
list this Agreement by subject on Auburn's internet web site.
Section 16. Integration This document, together with any exhibits thereto, constitutes the entire
embodiment of the contract between the Parties, and, unless modified in writing by an amendment signed
by the Parties hereto, shall be implemented exclusively as described above. All oral agreements and
understandings between the Parties related to the subject matter hereof shall be deemed superseded by this
Agreement and shall hereinafter be null and void.
Section 17. NoThird-Party Beneficiary Created. This Agreement is executed for the sole and
exclusive benefit of the signatory Parties. Nothing in this Agreement, whether expressed or implied, is
intended to confer any right, remedy or other entitlement upon any person other than the Parties hereto, nor
is anything in this Agreement intended to relieve or discharge the obligation or liability of any third party,
nor shall any provision herein give any third party any right of action against any party hereto.
Interlocal Cooperation Agreement
Concerning Water and Sewer Utility
Service, Billing, and Collection.
Page 410 of 1163
Section 18. SigagM Warrantx. Each signatory hereto warrants and represents that he/she has
been authorized to execute this Agreement by appropriate action of the legislative body of his/her respective
city.
Section Irk. Execution in Counterparts. This Agreement may be executed in separate counterparts.
Section 20. Regulatory Authority Reserved. Nothing herein shall be construed as waiving, limiting
or otherwise abridging in any manner regulatory authority of either party, which Algona and Auburn each
hereby expressly reserve in full.
EXECUTED this •- day of Yl , 2020. vl
CITY OF ALGONA
t'
oA
J""
Dave I - it . Ma or
ATTEST/AUTHENTICATED
ww v a 0j lv L6-
Jennie Gamic4, City &krk
APPROVED AS TO FORM
Algona City Attorney
CITY OF AUBURN
ATTEST/AUTHENTICATED
Sliawn Campbell, City Clerk
APPROVED AS TO FORM
AL Burn City Attorney
Interlocal Cooperation Agreement
Concerning Water and Sewer Utility
Service, Billing, and Collection.
Page 411 of 1163
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APPENDIX A8 CITY OF BONNEY LAKE
Sewer Service Boundaries (Resolutions 3760 and 3796)
Right of Way Use Permits (Resolutions 3873 and 1471)
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APPENDICES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
APPENDIX B HYDRAULIC MODEL UPDATE,
CALIBRATION, AND CAPACITY ANALYSIS
Page 454 of 1163
2024 Comprehensive Sewer Plan
TECHNICAL MEMORANDUM 1
Model Calibration Report
FINAL / May 2024
Page 455 of 1163
2024 Comprehensive Sewer Plan
TECHNICAL MEMORANDUM 1
Model Calibration Report
FINAL / May 2024
Page 456 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN i
pw://Carollo/WA/Auburn/201005-000000/03 Reports and Studies/02 Deliverables/TM01/TM01_ModelCalibrationReport
Contents
TM 1 MODEL CALIBRATION REPORT
1.1 Introduction 1-1
1.2 Existing Service Area 1-1
1.3 Sewer Collection Flows 1-3
1.3.1 Dry Weather Flow Components 1-3
1.3.2 Wet Weather Flow Components 1-4
1.4 Flow Monitoring Program 1-7
1.4.1 Program Description 1-7
1.4.2 Flow Monitoring Results 1-11
1.5 Zoning and Land Use Data 1-15
1.5.1 Zoning and Existing Served and Connected Area 1-16
1.5.2 Future Land Use 1-18
1.6 Wastewater Flow Factors 1-20
1.6.1 Flow Factor Development 1-23
1.7 Hydraulic Model Overview 1-24
1.7.1 Selected Hydraulic Modeling Software 1-24
1.7.2 Modeled Collection System and Skeletonization 1-25
1.7.3 Elements of a Hydraulic Model 1-25
1.8 Hydraulic Model Calibration 1-28
1.8.1 Calibration Standards 1-28
1.8.2 DWF Calibration 1-29
1.8.3 Wet Weather Flow Calibration 1-32
Attachments
ATTACHMENT 1A AUBURN WA 2020-21 DRAFT I/I REPORT V1
ATTACHMENT 1B FLOW METER QUALITY REVIEW
ATTACHMENT 1C LAND USE ELEMENTS OF COMPREHENSIVE PLAN
ATTACHMENT 1D FLOW FACTORS
ATTACHMENT 1E DRY WEATHER CALIBRATION SUMMARY SHEETS
ATTACHMENT 1F RDII PARAMETERS
ATTACHMENT 1G WET WEATHER CALIBRATION SUMMARY SHEETS
Page 457 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN ii
Tables
Table 1.1 Flow Monitoring Locations 1-8
Table 1.2 ADWF Development Summary 1-13
Table 1.3 Largest Storm Events 1-15
Table 1.4 Existing Zoning and Future Land Use Correlation 1-15
Table 1.5 Existing Zoning Summary 1-16
Table 1.6 Future Land Use Summary 1-18
Table 1.7 Flow Factor Development Summary 1-24
Table 1.8 DWF Calibration Results 1-31
Table 1.9 WWF Calibration Results 1-37
Figures
Figure 1.1 Existing Service Area 1-2
Figure 1.2 Typical Wastewater Flow Components 1-3
Figure 1.3 Typical Sources of I/I 1-5
Figure 1.4 Typical Effects of I/I 1-6
Figure 1.5 Flow Monitoring Locations 1-9
Figure 1.6 Flow Monitoring Schematic 1-10
Figure 1.7 Flow Monitoring Schematic of Meters Chosen for Calibration 1-10
Figure 1.8 Typical Weekday vs Weekend DWF (Meter AUB A-1) 1-12
Figure 1.9 Rainfall Intensity 1-14
Figure 1.10 Cumulative Rainfall 1-14
Figure 1.11 Current Land Use Based Zoning 1-17
Figure 1.12 Future Land Use 1-19
Figure 1.13 Developable Areas 1-21
Figure 1.14 Flow Monitoring Basins 1-22
Figure 1.15 Modeled Subatchments 1-27
Figure 1.16 Example Diurnal Pattern 1-30
Figure 1.17 Example DWF Calibration (Meter AUB A1) 1-32
Figure 1.18 RDI Model Schematic 1-34
Figure 1.19 Example WWF Calibration 1-36
Page 458 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN iii
Abbreviations
ADWF average dry weather flow
BWF base wastewater flow
City City of Auburn
CIWEM Chartered Institution of Water and Environmental Management
du/acre dwelling units per acre
DWF dry weather flow
FRC fast response curve
GIS geographic information system
gpda gallons per day per acre
GWI groundwater infiltration
HGL hydraulic grade line
I/I inflow and infiltration
mgd million gallons per day
RDI rainfall derived infiltration
RDII rainfall derived infiltration and inflow
SRC slow response curve
SSO sanitary sewer overflow
UDG Urban Drainage Group
WWF wet weather flow
Page 459 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-1
TM 1 MODEL CALIBRATION REPORT
1.1 Introduction
Sanitary Sewer collection system models are valuable tools used to assess the performance of collection
systems during dry and wet weather conditions, and to plan for future improvements. These models
provide a means to simulate the impact of different sized storms on the collection system and determine
where system deficiencies are likely to occur. In addition, a well-calibrated model provides an easy way to
test alternative improvement scenarios. This Technical Memorandum summarizes the City of Auburn’s
(City) sewer collection system hydraulic model update and calibration for use in the City’s sewer system
conveyance planning.
1.2 Existing Service Area
The City’s service area is shown in Figure 1.1. The service area contains approximately 17,968 acres. The
current service area includes most of the City limits, parts of City of Kent, some unincorporated areas of
both King and Pierce County’s, and part of the Muckleshoot Indian Reservation.
Page 460 of 1163
Edgewood
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51ST AVE S112TH AVE SES 277TH ST
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City of
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City of
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Soos Creek
Water & Sewer
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Last Revised: May 08, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
0 4,0002,000
Feet
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
TM 1 - MODEL CALIBRATION REPORT
MAY 2024 / DRAFT / CAROLLO
Figure 1.1 Existing Service Area
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Roads
Parcels
Auburn City Limts
County Boundary
Waterbodies
Muckleshoot Reservation
City of Auburn Service
Area
Service Area Outside
Auburn City Limts
Neighboring City Limts
Adjacent Sewer Service
Areas
18
18
167
167
Unincorporated
King County
Unincorporated King County
Served by Auburn Sewer
Unincorporated Pierce County
Served by Auburn Sewer
Area of Bonney Lake
Served by Auburn Sewer
Area of Bonney Lake
Served by Auburn Sewer
King County
Pierce County
Unincorporated King County
Served by Auburn Sewer
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TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-3
1.3 Sewer Collection Flows
Sewer collections systems are intended to convey sanitary flows, but frequently have additional flows
from other sources. The different flow components are described in the section below and illustrated in
Figure 1.2.
1.3.1 Dry Weather Flow Components
Average dry weather flow (ADWF) is the flow that is always entering the collection system on a daily basis.
There are two primary components of ADWF, base wastewater flow (BWF) that is the sanitary flow the
system is intended to convey, and dry weather ground water infiltration. ADWF was estimated from an
average of dry weather flow (DWF) data at each flow meter from 2020 to 2022. Section 1.4 describes the
flow monitoring efforts performed by ADS Environmental Services (ADS), which went into determining the
ADWFs. The ADWF serves as the baseline flow in the hydraulic model.
Figure 1.2 Typical Wastewater Flow Components
Note: This figure is not based on flow data specific to the City.
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TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-4
1.3.1.1 Base Wastewater Flow
The BWF is the sanitary flow generated by routine water usage of the collection system service area
residential, commercial, and industrial customers. Conveying this flow is the primary function of the
collection system. The flow has a diurnal (24-hour) pattern that varies by individual customer’s water use
patterns. Typically, a residential diurnal pattern has two peaks with the more pronounced peak following
the wake-up hours of the day, and a less pronounced peak occurring in the evening. Commercial and
industrial patterns, though they vary depending on the type of use, typically have more consistent higher
flow patterns during business hours, and lower flows at night. Furthermore, the diurnal flow pattern of a
weekend may vary from the diurnal flow experienced during a weekday. Diurnal patterns are applied to
ADWFs, and cumulatively make up the flows through the wastewater collection system. The diurnal
patterns utilized for the City’s collection system basins are developed in Section 1.4.2.1.
1.3.1.2 Dry Weather Groundwater Infiltration
Dry weather groundwater infiltration (GWI) will enter the sewer system when the relative depth of the
groundwater table is higher than the depth of the pipeline and the sanitary sewer pipe, allowing
infiltration through defects such as cracks, misaligned joints, and broken pipelines. Dry weather GWI (or
base infiltration) cannot easily be separated from BWF by flow measurement techniques. Therefore, dry
weather GWI is typically grouped with BWF.
1.3.2 Wet Weather Flow Components
Wet weather flow (WWF) includes two components:
Inflow and infiltration (I/I): The stormwater I/I response in the sewer system to rainfall is seen
immediately (inflow) or within hours after the storm (infiltration).
GWI: Wet weather GWI is not specific to a single rainfall event, but instead from effects of saturated
soils on the sewer system over the entire wet weather season. The depth of groundwater rising above
the pipe invert elevation causes GWI. Sewer pipes within close proximity to a body of water can also be
greatly influenced by groundwater effects.
1.3.2.1 Inflow and Infiltration
I/I are rainfall derived flows in the collection system from specific storm events. Inflow is stormwater that
enters the sewer system via a direct connection to the system, such as roof drain and downspout
connections, leaky manhole covers, and inappropriate storm drain connections. Infiltration is stormwater
that enters the sewer system by percolating through the soil and entering through foundation drains and
sumps inappropriately connected to the system, defects in pipelines, manholes, and joints. Some common
sources of I/I are shown in Figure 1.3. The adverse effects of I/I entering the sewer system is increases in
both flow volume and peak flows such that the sewer system may operate at or above its capacity, as
illustrated in Figure 1.4. If too much I/I enter the sewer system, sanitary sewer overflows (SSO) could occur.
Page 463 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-5
1.3.2.2 Groundwater Infiltration
GWI, one of the components of I/I, is associated with extraneous water entering the sewer system through
defects in pipes and manholes while the ground is saturated during the wet weather season. GWI is
related to the condition of the sewer pipes, manholes, and groundwater levels. GWI may occur
throughout the year, although rates are typically higher in the late winter and early spring in the
Pacific Northwest.
Figure 1.3 Typical Sources of I/I
Page 464 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-6
Figure 1.4 Typical Effects of I/I
Page 465 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-7
1.4 Flow Monitoring Program
Prior to the Comprehensive Sewer Planning effort, the City contracted with ADS to conduct a temporary
flow monitoring program within the City's sanitary sewer collection system. The City also obtained flow
data from meters within the City that are part of King County’s larger flow monitoring program. The
purposes of the flow monitoring program were to collect data for correlating actual collection system
flows to the hydraulic model predicted flows, evaluate the system's capacity, and estimate basin I/I.
The flow monitoring data was collected for a period of two years of wet season, monitoring from
2020 to 2022. The "Auburn WA 2020-21 Draft I&I Report v1" prepared by ADS summarizes the flow
monitoring program and was submitted to the City as a stand-alone report. The report can be found in
Attachment 1A.
1.4.1 Program Description
1.4.1.1 Flow Monitoring Sites and Tributary Areas
A total of 40 sewer basins were monitored during the flow monitoring period from 2020 to 2022 within
the service area, and seven King County meters recorded data within the City. A total of 20 of the meters
and all seven of the King County meters recorded data over the first wet season from October 2, 2020 to
April 15, 2021. Four meters recorded data from 2020 to 2022. The remaining 16 meters were sub-basin
monitoring over the 2021-2022 wet weather season.
The remainder of this report will focus on the 22 flow monitoring locations that encompass larger
tributary areas and have accurate data for the first wet season period. These meters were selected for
calibration and offer the best distribution of data across the collection system and encompass the City’s
critical sewered areas. These 22-meter locations are identified in Figure 1.5. Table 1.1 lists the flow
monitoring locations that were selected for calibration and the diameters for the associated sewers.
Figure 1.6 provides a schematic illustrating all 47 flow monitoring locations relationship to help
understand how the basins connect and the time data was recorded at each meter site. Figure 1.7
provides the same schematic showing the meters that were selected for model calibration.
Meter data quality was reviewed at all sites and deemed acceptable to use for model calibration. The
quality of meter data and other trends in the flow can be determined from scattergraphs, which plot the
depth versus velocity as compared to the manning’s curve for the pipe segment. Scattergraphs for each
site can be found in the Flow Meter Quality Review, Attachment 1B.
Page 466 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-8
Table 1.1 Flow Monitoring Locations
Meter ID Upstream Pipe ID Manhole ID Upstream Pipe Diameter (inch)
A1 308-19 308-20 21
A1c 309-08 309-06 18
A1d 309-11 309-10 18
A3 409-55 409-34 18
A4 508-28 508-17 12
A6 610-30 610-31 12
A7 708-07 707-03 18
A9 710-32 710-31 10
A10 710-152 710-151 24
A11 710-19 710-142 12
A12 710-43 710-42 12
A13 710-130 710-85 8
A14 710-148 710-149 18
A15 809-30 809-30 21
A16 809-44A 809-56 18
Y-1 410-76 410-16 18
Y-2 611-53 611-02 14
Y-3 1012-55 1012-55 24
Y-4 1010-02 1010-02 18
WINT003 508-01 508-02 42
MSTTR02 509-16 509-16 36
AUBRN53 207-02 207-01 72
Page 467 of 1163
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Last Revised: May 08, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
0 10.5
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
TM 1 - MODEL CALIBRATION REPORT
MAY 2024 / DRAFT / CAROLLO
Figure 1.5 Flow Monitoring Locations
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Flow Meters
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City of Auburn Service Area
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Roads
18
18
167
167
Page 468 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-10
Figure 1.6 Flow Monitoring Schematic
Figure 1.7 Flow Monitoring Schematic of Meters Chosen for Calibration
Page 469 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-11
1.4.1.2 Flow Meter Description
The flow meters used were area velocity meters. The velocity meter measured water with a Doppler signal
and the depth measured with either a submerged pressure sensor or level transducer. Level was
converted to area based on the pipe diameter. ADS selected the optimal type of flow meter to use on a
site-to-site basis based on the hydraulic characteristics at each site, as well as other factors.
ADS conducted an analysis of the data retrieved from each flow meter and made adjustments as needed
for calibration based on the field measurements. The flow at each meter was then calculated at 15-minute
intervals based on the continuity equation:
Q = V x A
Where:
Q = Pipeline flow rate, cubic feet per second.
V = Average velocity, feet per second.
A = Cross sectional flow area, square feet.
1.4.1.3 Rain Gauges
One rain gauge was installed by ADS to record rainfall that occurred throughout the flow monitoring
program and six existing king county rain gauges were used. The location of the rain gauge is shown in
Figure 1.5.
1.4.2 Flow Monitoring Results
The flow monitoring program data were evaluated by components including DWF, rainfall, and
WWF. Data collected from flow meter AUB A-1 is presented throughout this Technical Memorandum as
an example of the type of data and the results from the flow monitoring program. Results for all other
meters are included in Attachment 1B.
1.4.2.1 DWF Data
Base flow can be estimated for a wastewater collection system by comparing DWF and WWF at the flow
monitoring locations. To estimate ADWF for more specific areas, such as individual wastewater basins,
DWF’s are typically estimated based on the area contributing to flows and flow coefficients developed for
each land use type. This method is based on the assumption that areas with similar land uses, such as
low-density residential parcels, produce equivalent quantities of wastewater flow on a per area basis.
System-wide flows can be compared to known flows at flow monitors to verify accuracy. This method of
estimating base flows is an industry standard for planning and provides sufficiently accurate data for
planning purposes.
Page 470 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-12
Existing ADWFs for each basin were estimated using data from the flow monitoring program for each of
the flow monitoring basins. ADWF was developed using the driest days from the flow monitoring period
based on the following set of minimum criteria:
Less than 0.1 inch of rain in the previous 24 hours.
In addition, those dry days that exhibited unusual flow patterns were not used to generate net dry day
flow values for a basin.
Characteristic dry weather 24-hour diurnal flow patterns for each site were developed from hourly data.
The hourly flow data were also used to calibrate the hydraulic model for the observed DWF’s during the
flow monitoring period. Hourly patterns for weekday and weekend flows vary and were separated to
better define DWF. An example of the ADWF from Flow Meter AUB A-1, are shown in Figure 1.8. Both
gross and net ADWF are developed for each meter data set. Gross ADWF corresponds to the total
measured flow at the meter and includes all upstream areas while net basin flows are those associated
only with the basin as monitored by its meter of the same name, and therefore excludes all flow from
upstream meters (if any). A summary of the DWFs is outlined in Table 1.2.
Figure 1.8 Typical Weekday vs Weekend DWF (Meter AUB A-1)
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TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-13
Table 1.2 ADWF Development Summary
Meter ID Weekday Gross ADWF
(mgd)
Weekend Gross ADWF
(mgd)
Weekday/Weekend
Ratio
Gross ADWF
(mgd)
Net ADWF
(mgd)
A1 0.336 0.316 1.065 0.330 0.042
A1c 0.229 0.236 0.970 0.231 0.146
A1d 0.085 0.085 1.000 0.085 0.085
A3 0.280 0.284 0.988 0.281 0.281
A4 0.255 0.253 1.010 0.255 0.255
A6 0.091 0.094 0.966 0.092 0.092
A7 0.158 0.112 1.412 0.145 0.003
A9 0.057 0.057 0.998 0.057 0.057
A10 0.286 0.286 1.000 0.286 0.006
A11 0.065 0.066 0.991 0.066 0.008
A12 0.018 0.020 0.872 0.018 0.018
A13 0.044 0.045 0.977 0.044 0.044
A14 0.177 0.181 0.983 0.178 0.122
A15 0.056 0.059 0.953 0.057 0.057
A16 0.239 0.242 0.987 0.240 0.240
Y-1 0.396 0.415 0.954 0.401 0.401
Y-2 1.023 1.060 0.965 1.033 1.033
Y-3 0.658 0.657 1.002 0.657 0.657
Y-4 0.141 0.148 0.955 0.143 0.143
WINT003 3.271 3.258 1.004 3.267 2.321
MSTTR02 0.336 0.316 1.065 0.330 0.661
AUBRN53 7.817 7.800 1.002 7.812 0.949
Abbreviations: mgd - million gallons per day.
1.4.2.2 Rainfall Data
An important part of the flow monitoring program is the collection and analysis of rainfall data. Four
significant rainfall events occurred during the course of the flow monitoring period, as well as a few other
relatively minor events. The storms recorded during the flow monitoring program generated an I/I
response in the collection system and were appropriate for I/I analysis and model calibration purposes.
The hourly flow measured at seven different rain gauges recording rainfall over the course of the flow
monitoring program are illustrated in Figure 1.9. Figure 1.10 illustrates the total accumulation of rainfall
over the course of the flow monitoring period for the gauges including the ADS tipping bucket type rain
gauge (RG41Y). Table 1.3 summarizes the four largest events over the total rainfall period, recorded at the
RGAUB rain gauge. The RGAUB rain gauge best represented the rainfall distribution between the gauges
and was used in the model for WWF calibration.
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TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-14
Figure 1.9 Rainfall Intensity
Figure 1.10 Cumulative Rainfall
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-15
Table 1.3 Largest Storm Events
Storm Event Start Date End Date Total Event Rainfall
(inch)
Max 24-hour Volume
(inch)
Peak Intensity
(inch/hour)
Storm I October 6, 2020 October 13, 2020 1.98 1.52 0.17
Storm II December 30, 2020 January 6, 2021 4.06 1.66 0.13
Storm III January 8, 2021 January 15, 2021 3.20 2.08 0.06
Storm IV February 18, 2021 February 25, 2021 1.67 1.31 0.07
1.5 Zoning and Land Use Data
Land use designations and regulations provide important information in evaluating existing sewer
system capacity. Land use determines the area available for various types of development including both
single-family and multi-family residential development, as well as commercial and industrial uses that
provide the economic base necessary to support residential development.
Land use information is an integral component in estimating the amount of wastewater generated within
any City. The type of land use in an area will affect the volume of wastewater generated. Additionally, the
service area is typically comprised of both sewered and unsewered areas: sewered areas contribute flow to
the collection system, while unsewered areas are vacant, undeveloped land, or development such as parks
or parking facilities without a wastewater connection and do not currently contribute flow to the
collection system.
Future land use designations can be different from the existing zoning designations. A relationship
between existing and future designations was developed, based on the Comprehensive Land Use Plan.
This relationship was expanded based on the City’s geographic information system (GIS) Table 1.4
summarizes the correlation between zoning and land use and was used to develop wastewater flow
coefficients.
Table 1.4 Existing Zoning and Future Land Use Correlation
Land Use Designation Zoning
Residential Conservancy Residential Conservancy
Single Family Residential 20, 16, 7, 5, 1 du/Acre, Planned Unit Development District, Lea Hill Overlay
Moderate Density Residential Residential 10 du/acre
Heavy Commercial Heavy Commercial District, Mixed Use Commercial
Light Industrial Light Industrial District, Central Business District
Light Commercial Light Commercial District, Neighborhood Shopping District
Heavy Industrial Heavy Industrial District
Multi-Family Residential Manufactured/Mobile Home Community
Institutional Institutional Use District, Public Use District, Airport Landing Field District
Downtown Urban Center Downtown Urban Center
Neighborhood Commercial Residential Office District, Residential Office District-Hospital
Open Space Open Space
Parks Parks
Abbreviations: du/acre – dwelling units
Page 474 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-16
1.5.1 Zoning and Existing Served and Connected Area
The current zoning within the existing service area is shown in Figure 1.11. Right-of-Ways, unbuildable
land, open space and parks were removed from this analysis, as these areas are assumed to contribute no
sanitary flows to the collection system. Table 1.5 provides a summary of the zoning categories and
acreages for the existing service area and connected area from each category.
Table 1.5 Existing Zoning Summary
Zoning Area (acres) Percent of Total Area
Airport Landing Field District 110 0.6%
Central Business District 28 0.2%
Downtown Urban Center 91 0.5%
Heavy Commercial District 1,183 6.6%
Heavy Industrial District 776 4.3%
Institutional Use District 1,041 5.8%
Lakeland Hills South Special Plan Area – Planned Unit Development 667 3.7%
Light Commercial District 242 1.3%
Light Industrial District 1,272 7.1%
Mixed Use Commercial 67 0.4%
Neighborhood Shopping District 9 0.0%
Open Space/Parks 1,125 6.3%
Planned Unit Development District 136 0.8%
Public Use District 531 3.0%
Residential 1 du/acre 751 4.2%
Residential 10 du/acre 205 1.1%
Residential 16 du/acre 38 0.2%
Residential 20 du/acre 511 2.8%
Residential 5 du/acre 2,758 15.3%
Residential 7 du/acre 1,617 9.0%
Residential Conservancy 1,245 6.9%
Residential Manufactured/Mobile Home Community 443 2.5%
Residential Office District 75 0.4%
Residential Office District-Hospital 1 0.0%
Terrace View District 50 0.3%
Unclassified Use District 379 2.1%
Unknown(1) 501 2.8%
Right-of-Way 2,116 11.8%
Total 17,968 100.0%
Notes:
(1) Land Use is based on City’s GIS, areas within the service boundary, but outside City limits including the area in Kent, Bonney Lake and
unincorporated King and Pierce County are listed as Unknown.
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Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
TM 1 - MODEL CALIBRATION REPORT
MAY 2024 / DRAFT / CAROLLO
Figure 1.11 City of Auburn Land Use Designations
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Roads
City of Auburn Service
Area
Auburn City Limits
Land Use
Residential Conservancy
Single Family
Multi-Family
Downtown Urban Center
Industrial
Commercial
Parks/Open Space
Public/Quasi-Public
18
18
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-18
1.5.2 Future Land Use
Table 1.6 provides land use summary for the existing service area. Open space, parks, unbuildable land,
Streets, and Right-of-Way are removed from this analysis and are assumed to contribute zero sanitary
sewer flow in the future. The future land use within the existing service area is shown in Figure 1.12. The
Land Use elements of the Comprehensive Plan can be found in Attachment 1C.
Table 1.6 Future Land Use Summary
Land Use Designation Area (acres) Percent of Total Area
Downtown Urban Center 213 1.2%
Heavy Commercial 1,529 8.5%
Heavy Industrial 753 4.2%
Institutional 2,167 12.1%
Light Commercial 335 1.9%
Light Industrial 1,325 7.4%
Moderate Density Residential 449 2.5%
Multi-family 1,096 6.1%
Neighborhood Commercial 82 0.5%
Neighborhood Commercial Overlay 53 0.3%
Open Space/Parks 1,438 8.0%
Residential Conservancy 1,297 7.2%
Single Family 6,977 38.8%
Unknown(1) 254 1.4%
Total 17,968 100.0%
Notes:
(1) Land Use was provided from City’s GIS. Note it does not cover the entire wastewater service area. The unknown portion is
unincorporated areas including the area in Kent, Bonney Lake Areas and unincorporated King County Area.
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Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
TM 1 - MODEL CALIBRATION REPORT
MAY 2024 / DRAFT / CAROLLO
Figure 1.12 Future Land Use
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Auburn City Limits
City of Auburn Service Area
Roads
Zoning
Light Density Commercial
Medium Density Commercial
Heavy Commercial District
Mixed Use Commercial
Downtown Urban Center
Industrial
Public Use/Instititutional
Parks/Open Space
Low Density Residential
Medium Density Residential
High Density Residential
Lakeland Hills South PUD
Terrace View District
Unknown
Planned Unit Development
Unclassified Use District
1818
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-20
1.6 Wastewater Flow Factors
In order to develop wastewater flow projections and allocate future flows to the collection system,
relationships between land use and wastewater generation were developed. These relationships, called
wastewater flow factors are established based on the average wastewater flow generated for each existing
land use type. The land use flow factors were established to project the estimated ADWF through future
development of the City’s wastewater collection system and project future flows within the existing service
area boundary.
Average wastewater flow coefficients are volume rates, usually expressed in gallons per day per
acre (gpda), applied to either gross or net acres to calculate average day flow generated from a particular
land use type. A flow coefficient was developed for each of the land use classifications that were discussed
previously. The flow coefficient provides a means to transform a land use category from acreage into
wastewater flow. The resulting flow is then inputted into the appropriate sewer area in the sewer system
model. Wastewater flow coefficients for residential areas typically range between 500 to 3,000 gpda, and
commercial and industrial areas might range from 1,000 to 4,000 gpda, with typical values averaging
approximately 1,500 gpda. Land uses designated as open space and parks are assumed to generate
negligible amounts of sewage flow, and as a result have a flow coefficient of zero.
Figure 1.13 outlines the portion of the system that is currently considered sewered and contributing flows
to the collection system. This acreage is assigned to each catchment in the system and used for rainfall
runoff routing.
Flow monitoring basins were developed to define the upstream tributary area for each meter selected for
calibration, using only connected and developed parcels. Flow factors are applied across these flow
monitoring basins to allocate ADWF. Figure 1.14 outlines the flow monitoring basins used for this process.
Page 479 of 1163
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Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
TM 1 - MODEL CALIBRATION REPORT
MAY 2024 / DRAFT / CAROLLO
Figure 1.13 Flow Monitoring Locations
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Developed with Sewer
Sewer Pumps
"=)City of Auburn
"=)King County
"=)Private
GIS Sewer Mains by Diameter
8" or Smaller
10" - 16"
18" or Larger
King County Interceptor
Auburn City Limits
City of Auburn Service Area
Roads
18
18
167
167
Page 480 of 1163
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51ST AVE S112TH AVE SES 277TH ST
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Last Revised: May 08, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
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Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
TM 1 - MODEL CALIBRATION REPORT
MAY 2024 / DRAFT / CAROLLO
Figure 1.14 Flow Monitoring Basins
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Sewer Pumps
"=)City of Auburn
"=)King County
"=)Private
GIS Sewer Mains by Diameter
8" or Smaller
10" - 16"
18" or Larger
King County Interceptor
Auburn City Limits
City of Auburn Service Area
Flow Monitoring Basins
Roads
18
18
167
167
Page 481 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-23
1.6.1 Flow Factor Development
The coefficients are developed using the following procedure:
Average flows for each flow metering tributary area were extracted from the flow-monitoring data (see
Section 1.4).
The acres for each land use type contained in each flow-monitoring tributary area were calculated
using GIS data.
Preliminary coefficients for each land use type were assumed based on typical values, which can be
estimated from the approximate number of dwelling units per acre, the assumed per capita
wastewater generation rates, and/or the typical number of people per dwelling unit for each land use
type.
The coefficients for each flow metering tributary area are adjusted up or down (balanced) within a
reasonable range (based on engineering judgment) until the calculated average flows from each
tributary matched flow monitoring period measurements. If the flow coefficients produced average
flows that were significantly different from the field measured flows, further investigation was
conducted to verify that the tributary basins were delineated correctly and if the collection system
configuration was correct.
Once the coefficients for the 22 flow meter tributary areas are balanced, the weighted average of the
coefficients for each land use type is calculated based on the acreage contribution from each metering
tributary area.
The flow coefficients were then adjusted to balance the calculated flows for the overall developed
sewer service area, where flow-monitoring data was available.
The weighted wastewater flow coefficients and land use areas that represent existing ADWF are
summarized in Table 1.7. The land use coefficients generate an ADWF to the modeled collection system
of 7.77 mgd, a -0.5 percent difference from the measured ADWF of 7.81 mgd.
Wastewater flow factors were compared to the Comprehensive Plan, Attachment 1C, to confirm they
correspond to the densities and allowable dwelling unit per acre for each land use type. This was done at
a flow monitoring basin level such that the flow factors matched the relative densities, however when
averaged out across the system some flow factors are smaller or larger than the expected density based
on the flow monitoring basin the majority of the land use acreage is within. The detailed flow factors at a
flow monitoring basin level are shown in Attachment 1D.
Page 482 of 1163
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-24
Table 1.7 Flow Factor Development Summary
Land Use Type Developed Area
(acres)
Wastewater Flow Factor
(gpda)
Existing ADWF
(mgd)
Single Family 2,778 920 2.56
Moderate Density Residential 147 950 0.14
Residential Conservancy 11 800 0.01
Open Space 1 0 0.00
Neighborhood Commercial 64 1,020 0.07
Multi-Family 335 2,440 0.82
Light Industrial 721 530 0.38
Light Commercial 165 640 0.11
Institutional 953 1,230 1.17
Heavy Commercial 861 1,920 1.65
Heavy Industrial 414 1,890 0.78
Downtown Urban Center 58 1,500 0.09
Undeveloped Acreage 3,928
Total 17,968
Total Estimated ADWF 7.77
Measured ADWF 7.81
Percent Difference -0.5%
1.7 Hydraulic Model Overview
A wastewater collection system model is a simplified representation of the real sewer system. Wastewater
system models can assess the conveyance capacity of the collection system. The model can be used to
size new infrastructure. In addition, sewer system models can perform “what if” scenarios to assess the
impacts of future developments and land use changes. The City’s collection system hydraulic model was
updated and expanded using a multi-step process utilizing data from a variety of sources. This section
summarizes the hydraulic model development process, including a description of the modeled collection
system, the hydraulic model elements, and the model creation process.
1.7.1 Selected Hydraulic Modeling Software
The City’s previous collection system hydraulic model was developed using the Mike Urban hydraulic
modeling software package, developed by DHI. This project converted the model from Mike Urban to
Mike+, the current DHI collection system product. The hydraulic modeling engine for the Mike+ software
package is now 1D, it was previously MOUSE. The model was updated to use the 1D engine, which is
widely used throughout the world for planning, analysis, and design related to stormwater runoff,
combined sewers, sanitary sewers, and other free surface drainage systems such as streams and rivers.
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The latest version (2022) of Mike+ was used for the hydraulic model update. More information about the
modeling software can be found in the Mike+ Collection Systems Guide 1.
1.7.2 Modeled Collection System and Skeletonization
The City provided Carollo Engineers, Inc. with an initial skeletonized model. Skeletonization is the process
of identifying the key system conveyance components to include in the model. Smaller pipelines not
considered essential for the intended analysis purpose are removed from the modeled set. The purpose of
skeletonizing a system is to develop a model that accurately simulates the hydraulics of a collection
system, while at the same time reducing the complexity as well as computational run times and to simplify
data management.
It is common practice in sewer system master planning to exclude small diameter sewers when
developing a hydraulic computer model. Key sewers are included in the City’s hydraulic model where
needed for connectivity, or where it was determined that the pipes in question were considered as
primary collectors. The collection system remains skeletonized for this project, with no increase in
modeled system coverage. Pipes were updated to reflect projects and changes that occurred since the last
plan.
1.7.3 Elements of a Hydraulic Model
The following provides a brief overview of the various elements of the hydraulic model and the required
input parameters associated with each:
Nodes (Manhole): Sewer manholes, cleanouts, and other locations where pipes begin, pipe sizes
change, or pipelines intersect are represented by junctions in the hydraulic model. Required inputs for
junctions include rim elevation, invert elevation, diameter, and surcharge depth (used to represent
pressurized systems). Nodes are also used to represent locations where flows are split or divided
between two or more downstream links.
Pipes: Gravity sewers and force mains are represented as pipes in the hydraulic model. Input
parameters for pipes include length, friction factor (e.g., Manning’s n for gravity mains, Hazen
Williams C for force mains), invert elevations, diameter, shape, and whether or not the pipe is a force
main.
Nodes (Basin): For collection system modeling, basins are typically used to represent pump station
wet wells (although other storage basins, etc., can be modeled as basin). Input parameters for basins
include invert elevation, wet well depth, and wet well cross section or a depth-area relationship.
Pumps: Pumps are included in the hydraulic model as links. Input parameters for pumps include pump
curves and operational controls.
Nodes (Outfalls): Outfalls represent areas where flow can leave the system. For sewer system
modeling, an outfall typically represents an overflow point or the connection to the wastewater
treatment plant.
Boundary Conditions (Rainfall): Rain gauges are locations where rainfall is input to the hydraulic
model for simulation of WWF. The rain can be historical, projected, or theoretical hourly rainfall events.
1 Mike+ Collection System User Guide, DHI 2022.
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CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN 1-26
Catchments: Catchments represent areas of land whose topography and drainage characteristics
direct flow to a single discharge point into the sewer system. Catchments can be used to define
sanitary flows or to route a portion of the rainfall runoff into the system. Inflow conditions for the
catchments are defined model inputs. Figure 1.15 outlines all the modeled catchments in the collection
system model.
Inflows: There are two primary flow sources that enter into the collection system, which are input
through individual junctions (and storage nodes) in the model:
» Dry Weather. Dry weather inflows simulate base sanitary wastewater flows and represent the average
flow. The DWF can be multiplied by up to four patterns that vary the flow by month, day, hour, and
day of the week (e.g., weekday or weekend). The dry weather diurnal patterns are adjusted during the
dry weather calibration process to match the known typical daily flow fluctuations. Two diurnal
patterns were developed for each basin, respectively representing weekday and weekend days (see
Section 1.4.2.1).
» Rainfall derived infiltration and inflow (RDII). RDII are flows into the collection system originating
from rainfall. Several models are available in Mike Urban to capture these effects. The models have a
number of parameters that are adjusted during the wet weather calibration process to model the
flows into the collection during different storm events.
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RDFRAGERRDSGREENRIVERRDSESE GREEN VALLEY RD
STUCK RIVER DR
Last Revised: May 08, 2024 pw:\\IO-PW-INT.Carollo.local:Carollo_200000\Documents\WA\Auburn\201005-000000\03 Reports and Studies\09 GIS\O
0 10.5
Miles
Disclaimer: Features shown in this
figure are for planning purposes and
represent approximate locations.
Engineering and/or survey accuracy
is not implied.
Data Sources: City of Auburn,
King County, ESRI
TM 1 - MODEL CALIBRATION REPORT
MAY 2024 / DRAFT / CAROLLO
Figure 1.15 Modeled Subcatchments
CITY OF AUBURN
2024 COMPREHENSIVE SEWER PLAN
Legend
Sewer Subcatchments
Roads
City of Auburn Service Area
Model Pipelines by Diameter
8" or Smaller
10" - 16"
18" or Larger
King County Interceptors
18
18
167
167
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1.8 Hydraulic Model Calibration
Hydraulic model calibration is a crucial component of the hydraulic modeling effort. Calibrating the model
to match data collected during the flow monitoring program ensures the most accurate results possible.
The calibration process consists of calibrating to both dry and wet weather conditions.
For this project, both dry and wet weather calibration were conducted at the 22 metering sites presented
and discussed in Section 1.4:
DWF calibration ensures an accurate depiction of ADWF generated within the existing service area, and
diurnal fluctuations.
WWF calibration consists of calibrating the hydraulic model to a specific storm event or events to
accurately simulate the peak flow and volume of I/I into the sewer system. The amount of I/I is
essentially the difference between the WWF and DWF components.
1.8.1 Calibration Standards
The hydraulic model was calibrated in accordance with international modeling recommendations. The
Urban Drainage Group (UDG), formerly known as Wastewater Planning Users Group, a section of the
Chartered Institution of Water and Environmental Management (CIWEM), has established generally
agreed upon principles for model verification. The dry weather and wet weather calibration focused on
meeting the recommendations on model verification contained in the “Code of Practice for the Hydraulic
Modeling of Urban Drainage Systems,” published by the CIWEM UDG 2), as summarized below.
1.8.1.1 Dry Weather Calibration Standards
Dry weather calibration should be carried out for two dry weather days and the modeled flows and depths
should be compared to the field-measured flows and depths. Both the modeled and field-measured flow
hydrographs should closely follow each other in both shape and magnitude. In addition to the shape, the
flow hydrographs should also meet the following criteria as a general guide:
The timing of flow peaks and troughs should be within 1 hour.
The peak flow rate should be within the range of ±10 percent.
The volume of flow (or the average rate of flow) should be within the range of ±10 percent. If
applicable, care should be taken to exclude periods of missing or inaccurate data.
The unsurcharged depth should be within ±10 percent or ±4 inches, whichever is greater.
2 UDG, Code of Practice for the Hydraulic Modelling of Urban Drainage Systems, 1st Edition CIWEM 2017 www.ciwem.org.
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1.8.1.2 Wet Weather Calibration Standards
For each meter, three separate storms should be simulated with the model. For at least two storms out of
the three events from the flow monitoring period, the model-simulated flows and depths should match
the field-measured flows and depths within the accepted criteria. The modeled and field flow hydrographs
for the calibration storms should closely follow each other in both shape and magnitude, until the flow
has substantially returned to DWF rates.
In addition to the shape, the flow hydrographs should also meet the following criteria as a general guide:
The timing of the peaks and troughs should be similar with regard to the duration of the events.
The peak flow rates at significant peaks should be in the range of +25 percent to -15 percent and
should be generally similar throughout.
Modeled volume of flow should be within +20 percent to -10 percent of measured volume of flow.
The depth of surcharge should be in the range of +20-inches to -4-inches.
The difference between maximum unsurcharged depth should be within the range of ± 4-inches.
The UDG recommends that for wet weather calibration, the use of a single calibration period
incorporating a number of rainfall events should be considered whenever possible. In other words, if the
flow monitoring program captured several back to back storms, it may be preferable to use the back to
back storms events as the calibration storms, as opposed to calibrating to two separate storms that have
occurred weeks or months apart. Model calibration simulations should be run for a duration long enough
that the RDII response is no longer apparent in the measured data.
1.8.2 DWF Calibration
1.8.2.1 Dry Weather Calibration Process
The DWF calibration process consists of several steps, as outlined below:
The first step in the calibration process was to divide the City into flowmeter tributary areas. GIS
analysis was used to create 22 tributary areas, one for each flowmeter from the flow monitoring
program that was selected to be used for calibration. A map showing the locations of each flow
monitoring site and their associated tributary area was provided in Section 1.4 and Section 1.6, along
with a schematic of the flow meters.
The next step was to define the flow volumes within each area, which was accomplished by applying
the flow factors outlined in Table 1.7 to the catchments proportionally based on the distribution of
land use types withing the catchment.
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The last step is to create diurnal patterns to match the temporal distribution of flow. A diurnal curve is
a pattern of hourly multipliers that are applied to the base flow to simulate the variation in flow that
occurs throughout the day. Two diurnal curves were developed for each flow monitoring tributary
area, one representing weekday flow and one representing weekend flow. The diurnal patterns were
initially developed based on the flow monitoring data and adjusted as part of the calibration process
until the model-simulated flows closely matched the field-measured flows. Figure 1.16 shows the
calibrated weekday and weekend diurnal patterns for the area tributary to Meter AUB A1. Similar
diurnal curves were developed for each of the meters and its tributary area. These additional curves are
available in Attachment 1E.
Figure 1.16 Example Diurnal Pattern
1.8.2.2 Dry Weather Calibration Discussion
Table 1.8 provides a summary of the DWF calibration using the average and daily peak flow results for
both weekday and weekend conditions. As shown on Table 1.8, the model-simulated average for all sites
are within 10 percent. The peak flows for both weekday and weekend DWF were all within 10 percent,
except for meters A3, A7, Y-2, and MSTTR02A. Those four meters showed variability between weekday
and weekend volume, but still match for the average day DWF.
Attachment 1E contains a detailed DWF calibration summary sheet for each of the 22 metering sites. Each
calibration sheet provides plots that compare the model-simulated and field-measured flow data for both
weekday and weekend conditions. An example of the dry weather calibration for Meter AUB A1 is shown
on Figure 1.17.
There is good overall correlation of the field-measured data to the model output results. A total of
18 of 22 meters meet criteria for both level and velocity, indicating a well calibrated model for DWFs.
Manning’s n values were adjusted by flow monitoring basin so that modeled levels would better
match the measured data. However, even after these changes some levels could not be matched. The
Mike 1D engine simulates flow well under these conditions, but level and velocity are less accurate with
the Saint-Venant equations meant for free flow conditions.
To account for this, the modeled manhole head losses were adjusted for steep pipes throughout the
collection system. For pipes with slopes greater than 0.01 or 1 percent, the head loss was defined as
weighted inlet energy with a smaller effective area instead of the default Mouse Classic Engelund. This
change ignores inlet expansion losses and assumes the energy level in the manhole equals the inlet pipe.
Thus, the manhole level is reduced to better match the field measured data for steep slopes. These
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changes moved the levels closer to being in criteria, but the level changes were not significant enough
that all these sites could not be moved into calibration criteria.
All 4 meters outside of criteria had higher modeled levels than measured level. Meter A6, A7, Y-2, are all
meters located on steep pipe slopes where a hydraulic jump is occurring. These sites are also at points
where the pipe size is transitioning. The monitoring at Site A6 was done at a manhole that transitions
from a 12-inch to a 30-inch, site A7 was done at a manhole that transitions from an 18-inch to a 36-inch,
and Y-2 is where 14-inch transitions to a 24-inch. The modeled levels are exported at the downstream end
of the pipe in the monitoring manhole where the hydraulic grade line (HGL) is governed by larger
diameter downstream pipe, leading to higher levels than measured. These three sites remained out of
criteria for WWF as well.
Site AUBRN53 was also slightly out of criteria but moved into criteria during WWF’s so this was deemed
less of a concern.
Table 1.8 DWF Calibration Results
Flow Meter ID Weekday
Average Flow
Percent Error
Weekday
Peak Flow
Percent Error
Weekday Max
Level
Difference
(inches)
Weekend
Average Flow
Percent Error
Weekend Peak
Flow Percent
Error
Weekday Max
Level
Difference
(inches)
ADWF
Percent Error
A1 -3.3% -4.1% 1.62 2.9% 8.2% 1.55 -1.6%
A1c 4.5% 1.4% 2.50 1.6% -2.1% 2.69 3.7%
A1d -5.4% -5.7% 0.93 -4.7% -5.2% 0.93 -5.2%
A3 -4.9% -7.5% 1.56 34.3% 30.9% 1.22 3.7%
A4 -5.4% -5.6% 0.26 -4.3% -4.5% 0.29 -5.1%
A6 -3.8% 3.9% 6.67 -7.9% -0.5% 6.68 -5.0%
A7 -8.7% -9.6% 11.39 29.0% 28.3% 11.99 -0.4%
A9 -1.8% -3.2% 0.61 -1.9% -4.8% 0.71 -1.8%
A10 -1.9% -9.5% 1.44 -2.0% -9.7% 1.75 -1.9%
A11 5.9% 4.7% 0.65 4.9% 0.7% 0.78 5.6%
A12 7.2% 2.8% 0.61 -5.7% -7.6% 0.60 3.2%
A13 -1.1% -4.0% 0.37 -0.1% -1.5% 0.30 -0.8%
A14 -6.0% -3.1% 1.59 -7.4% -2.0% 1.66 -6.4%
A15 2.0% 1.6% 0.97 -2.4% -3.1% 1.08 0.7%
A16 -2.0% -2.7% 1.43 -3.2% -4.6% 1.45 -2.4%
Y-1 1.6% 0.8% 0.94 -3.0% -4.0% 1.08 0.2%
Y-2 1.9% 14.1% 5.30 0.1% 15.9% 5.68 1.4%
Y-3 -2.1% -2.5% 2.83 -1.6% -4.1% 2.83 -2.0%
Y-4 8.2% 2.7% 3.99 11.1% 1.1% 3.77 9.0%
WINT003 3.6% -5.3% 3.87 2.9% -5.1% 3.74 3.4%
MSTTR02A 11.0% 7.5% 2.28 6.3% 6.4% 2.28 9.6%
AUBRN53 6.1% 4.4% 4.29 6.0% 2.9% 4.71 6.0%
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Figure 1.17 Example DWF Calibration (Meter AUB A1)
1.8.3 Wet Weather Flow Calibration
1.8.3.1 Wet Weather Flow Calibration Process
The WWF calibration enables the hydraulic model to accurately simulate RDII entering the collection
system during storms. The WWF calibration process consists of running model simulations of historic
rainfall events based on data collected as part of a system flow monitoring program. The goal of any
WWF monitoring program is to capture and characterize a system’s response to a significant rainfall
event, preferably during wet antecedent moisture conditions. As outlined below, the WWF calibration
process consists of several elements:
Identify calibration rainfall events. The selection of a particular calibration storm or group of storms
is based on a review of the flow and rainfall data. There is a good range of different event types
available for the different meters. Major rainfall events that were used as calibration rainfall events
were identified as part of Section 1.4.2.2. Table 1.3 summarizes the four storms picked for calibration
for each of the 2 sites. The use of a single calibration period incorporating a number of rainfall events
was considered whenever possible. All meters except for WINT003, MSTR002A, and AUBRN53 used the
first three storms, those three used the 4th event due to meter availability. Figure 1.9 illustrated the
storms used in the model calibration process.
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Define RDII tributary areas. For the WWF calibration, RDII flows are added on top of the DWF. The
model calculates two types of response: a slow response corresponding mainly to infiltration, or slow
response curve (SRC), and a fast response corresponding mainly to direct inflow, or fast response
curve (FRC). Imperviousness is the fraction of the catchment area that is impervious and connected to
the collections system, generating the FRC runoff, and rainfall derived infiltration (RDI) Area, which is
the fraction of the total catchment area that contributes to the SRC. The imperviousness and RDI
runoff component are two major model-specific data in the model calculation of WWFs, and each have
a number of subparameter components that are adjusted to tune to response timing. These area
values were initially set based on engineering judgment, as well as the previously used values, and
then adjusted until the model-simulated wet weather flow volume roughly matched the
field-measured flows.
Create I/I parameter database and modify to match field-measured flows. The main step in the
WWF calibration process involves adjusting both Model A and RDI parameters for each flow
monitoring tributary area. Figure 1.18 provides a schematic of the RDI model used. Attachment 1F
summarizes all calibrated parameters by flow monitoring site, for current conditions. As with the dry
weather calibration, the wet weather calibration process compared the meter data with the model
output. Comparisons were made for average and peak flows as well as the temporal distribution of
flow until flows returned to their baseline levels. According to the CIWEM UDG, a hydraulic model is
generally considered calibrated to WWF conditions if the modeled peak flows are within
+25 percent to -15 percent of the field-measured data, and if the average modeled volumes are within
+20 percent to -10 percent of the field-measured data. Calibration was performed for the depth of
flow as well, this is considered calibrated when peak depths are with ± 4-inches when unsurcharged,
and +20-inches to -4 inches when surcharged.
Adjust model variables to match field-measured velocity and flow depths. Once the model-
simulated flows matched the field-measured flows within the acceptable limits, the model-simulated
velocity and flow depth were compared to the field-measured velocity and flow depth. Adjustments
were made to various model parameters until the modeled and measured velocity and depth closely
matched one another. The primary varied parameters for this process are node head losses and
pipeline roughness (Manning’s n), although other parameters can also be adjusted as calibration
results are generated. Sediment buildup and movement in the pipe will also influence the level and
depth, but these are very difficult to quantify and can change frequently, therefore they are not
included in the calibration.
Manning’s roughness coefficients, or n values, have industry accepted ranges based on a number of
variables. Roughness coefficients increase over time depending on the construction methods,
installation quality, system maintenance, and other environmental factors. There can be certain factors
within the City’s collection system that can result in roughness coefficients that differ from the typical
range. These could include joint misalignment, cracks, and debris (e.g., root intrusion, etc.) that lead to
increased turbulence in a pipe and an increase in the apparent Manning’s n factor.
If the model is unable to reasonably match the field-measured flow depth and velocity within the
acceptable range of Manning’s roughness coefficients, further investigation should be conducted to
help determine the cause of the discrepancy. Some issues that could cause such a discrepancy can
include errors in the slope or diameter of a pipeline, downstream blockages, pipeline sags, and, in
some cases, influences from downstream pump station operations.
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Figure 1.18 RDI Model Schematic
1.8.3.2 Wet Weather Calibration Results
Attachment 1G contains a detailed WWF calibration summary sheet for each of the 22-meter sites. The
modeled outputs at each flow meter were compared to the data from three storms recorded during the
flow monitoring period for calibration. Each calibration sheet provides plots that compare the model-
simulated and field-measured flow, velocity, and level data for the calibration storms. An example of the
wet weather calibration for Meter AUB 1A is shown on Figure 1.19.
Table 1.9 provides a summary of the WWF calibration using the total volume and peak flow results. Of the
22 meters, 21 had two or more storm event responses within calibration standards for volume and peak
flows. Meter A12 was the only site outside of criteria for volume, peak still matched, and this was due to
abnormal DWF data during the WWF calibration period. As shown on Table 1.9, the model-simulated
average and peak flows at all other meter sites were within the acceptable tolerances for the calibration
storms, and therefore the model was considered calibrated and ready to use for capacity analysis
purposes.
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As discussed in Section 1.8.1, it is critical that the hydraulic model is not only calibration to volume and
peak flow, but also level data. This will ensure accuracy and trust in modeled results when evaluating
capacity deficiencies; which are based on a HGL criteria in the collection system.
Modeled data at almost all meters closely matched the recorded level information, of the 22 meters with
level data, 18 met the level calibration standard. Meters A6, A7, and Y-2 did not meet the level criteria
during DWF either and are discussed in Section 1.8.2. Meter Y-1 fell out of level criteria for WWF. The
measured data indicated backwatering and surcharging effects during the latter two storm events, and
this surcharging was not replicated in the model. This meter is located right upstream of the Green River
Siphon, indicating potential sediment buildup constricting flows in the field, and not replicated in the
model.
1.8.3.3 Hydraulic Model Calibration Summary
Calibration of the City’s hydraulic model was a multi-step process that involved comparing model-
simulated flow to the actual field-measured data for both dry and wet weather conditions. The model met
all flow CIWEM standards for ADWF and most standards for level. Results showed the model met CIWEM
standards for calculation of flows during peak wet weather flow. The CIWEM level standards were met at
18 of the 22 sites used for model calibration. For the meters outside of level criteria, 3 of the 4 meters
were over predicting levels, offering a conservative approach for system analysis. These calibration results
provide a high level of confidence in the model’s accuracy such that the model can be considered
calibrated and ready to use for subsequent capacity analysis.
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Figure 1.19 Example WWF Calibration
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Table 1.9 WWF Calibration Results
Flow Meter ID Storm 1
Total Volume
Percent Err
Storm 1
Peak Flow
Percent Error
Storm 1
Max Level
Difference
(inches)
Storm 2
Total Volume
Percent Error
Storm 2
Peak Flow
Percent Error
Storm 2
Max Level
Difference
(inches)
Storm 3
Total Volume
Percent Error
Storm 3
Peak Flow
Percent Error
Storm 3
Max Level
Difference
(inches)
A1 -7.0% 2.2% 1.2 -4.5% -4.4% 0.9 -13.6% -10.0% 1.1
A1c -4.2% 0.8% 2.2 -2.8% -24.6% 2.7 -7.5% -10.7% 2.1
A1d 26.4% 7.3% -0.8 -7.4% -10.4% -0.9 -0.8% 9.8% -1.2
A3 -12.2% 2.9% 0.0 -2.5% -11.5% 0.1 -6.5% -5.7% 0.0
A4 1.2% -3.7% 0.3 -9.0% -10.6% 0.6 -9.2% -20.8% 1.2
A6 8.3% 0.3% -8.5 25.4% 5.0% -8.4 -1.1% 3.1% -8.0
A7 10.8% -10.1% -16.6 9.2% -14.9% -14.7 8.9% -13.7% -14.0
A9 -5.3% -6.9% -1.7 0.3% -13.9% 0.7 2.7% -11.6% 0.7
A10 10.8% -9.4% 1.9 10.0% -22.0% 2.2 -0.3% -10.3% 1.7
A11 2.2% 1.8% -1.8 7.3% -2.1% -0.5 9.3% -4.2% -0.2
A12 23.3% -4.2% 0.7 -22.1% -46.7% -0.1 20.3% -20.7% 0.0
A13 -34.8% -43.7% -0.6 15.5% -7.2% -0.6 15.3% 3.9% -0.4
A14 -1.7% -22.0% 1.3 -2.8% -0.3% 1.5 -8.4% -14.7% 1.1
A15 -12.7% -15.7% 1.5 -2.4% -13.3% 1.2 -6.9% -6.0% 1.2
A16 -5.7% -4.4% -1.6 -1.5% -23.4% -1.4 -1.6% -14.2% -1.5
Y-1 -3.2% -5.1% -1.0 -11.6% 8.2% 11.2 -9.4% 2.6% 15.1
Y-2 18.8% 29.2% -7.0 -5.1% -13.8% -5.9 -6.4% 15.7% -7.6
Y-3 29.9% 96.9% -1.0 -8.1% -4.2% 0.5 -7.7% 14.7% -0.1
Y-4 2.5% -4.9% -0.9 3.8% -2.9% 0.0 2.0% -10.2% 1.0
WINT003 4.4% 11.9% -4.2 7.7% 14.7% -5.1 10.9% -4.1% -3.9
MSTTR02A -8.9% 11.4% 0.6 0.1% 14.2% 0.9 -11.0% 4.8% 2.2
AUBRN53 -8.8% 0.9% -3.0 -7.2% -11.5% -3.3 -11.9% -18.8% -1.2
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ATTACHMENT 1A AUBURN WA 2020-21 DRAFT I/I
REPORT V1
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1
RDII Analysis
Auburn, Washington
Draft ‐ 8 June 2021
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2
Table of Contents
1.0 – Overview .............................................................................................................................................. 3
2.0 – Steps of a Wet Weather RDII Analysis ................................................................................................. 5
2.1 ‐ Basin Size ........................................................................................................................................... 5
2.2 – Average Dry Day Flow (ADDF) .......................................................................................................... 6
2.3 ‐ Rainfall Analysis .............................................................................................................................. 11
2.4 ‐ RDII Volumes ................................................................................................................................... 12
2.5 ‐ RDII Severity .................................................................................................................................... 14
2.6 ‐ Projected RDII Volumes .................................................................................................................. 17
a) Which sewersheds generate the most RDII volumes? ................................................................... 18
b) Sewersheds ranked on projected RDII ‐ in Gal/LF/Inch .................................................................. 19
3.0 – Operational Capacities ....................................................................................................................... 20
4.0 – Subjective Views of Hydrographs ....................................................................................................... 21
5.0 – Conclusions ........................................................................................................................................ 23
Appendix A – Sewershed Map ................................................................................................................ 24
Appendix B ‐ Sliicer Graphics .................................................................................................................. 24
Appendix C – Q vs i Plots ......................................................................................................................... 24
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3
1.0 – Overview
ADS Environmental Services (ADS) was retained by the City of Auburn to conduct a Rainfall
Dependent Infiltration Inflow (RDII) analysis of its sanitary sewer system. The scope of the
study was to characterize dry weather and wet weather flow conditions at twenty‐four (24)
temporary flow metering locations and six (6) King County permanent flow meters. One
temporary rain gauge and two King County rain gauges were used for rain data.
The metering period was from 2 October 2020 through 15 April 2021. This metering period is
characterized as a generally dry October following by a rainy winter. A total of 13 storms were
analyzed. Two storms on 2 January and 11 January exceeded 3 inches of rainfall, but only one
sewer surcharged (Y‐1) and the rest of the sewers barely reached half full. It appears that snow
melt affected the 14 February storm. Section 2.3 discusses the rainfall in more detail.
When the two sets of flow data were first integrated, there was large flow imbalance between
the most downstream Auburn meter (A2) and the four upstream meters, two of which were
King County meters. ADS discovered nearly a half‐inch difference in the pipe size and King
County found a depth sensor offset of over one inch at meter MSTTR02A. After both
corrections were made, a small positive balance exists, but it is suspected that the King County
meter WINT003 is still reading a bit high.
RDII volumes are normalized two ways in this report; Capture Coefficient (Percent rainfall
entering sewers) and Gallons per LF of sewer per inch of rainfall. In a third method basins are
ranked by RDII volume expected from a 2.4 ‐inch storm applied to the Q vs. i relationship
generated at each sewershed. Historic King County DDF (Depth Duration Frequency) data
indicate that a 5‐year, 24‐hour storm is 2.4 inches.
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4
Figure 1 is a schematic layout of the metering network including the six King County meters. A
diversion exists at SRT11 that conveys all flows to the west and it is believed that all the flow
occurring during this metering period followed that path.
FIGURE 1. Meter Schematic for Seventeen Meters.
AUB_A1
AUB_A10
AUB_A11
AUB_A12
AUB_A13AUB_A14
AUB_A15
AUB_A16
AUB_A17
AUB_A1a AUB_A1b
AUB_A1c
AUB_A1d
AUB_A2 AUB_A3
AUB_A4 AUB_A6
AUB_A7
AUB_A8
AUB_A9
AUB_Y‐1
AUB_Y‐2
AUB_Y‐3
AUB_Y‐4
AUBWV016
MSTTR02A
MSTTR22A
SRT11
WINT003
WINT035
Auburn Flow Schematic – 4 May 2021
King County meters
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5
2.0 – Steps of a Wet Weather RDII Analysis
The following sections address the steps followed to conduct the dry‐day and the RDII analyses.
These steps include determining the basin size and performing a quality check on the
wastewater produced by each basin. Rainfall data are examined and RDII is calculated.
2.1 ‐ Basin Size
The size of each basin in Acres and length (LF) of
public sewer was determined using the City’s GIS
information and the sizes are listed in Table 1.
Appendix A is a map showing the basin boundaries
used to determine basin sizes. There are two
reasons to keep track of basin size. The first use is
to 'normalize’ the flow measurements by basin size
to produce an apples‐to‐apples comparison of RDII
severity. Secondly, the basin size has value in
interpreting RDII severity. Large basins will exhibit
RDII severity close to the system wide average and
small basins will exhibit RDII severity much higher
and much lower than the system average. If there
are upstream meters, the basin size is the area
between the meters, also called the Net basin size.
GIS information was not complete for the King
County basins of AUBWV016 and WINT035 and
those basin sizes are estimates.
Table 1 Basin Sizes in Linear Feet and Acres
Basin Area Iac) Length (LF)
AUB_A1_30820 107 6,711
AUB_A10_710151 87 14,315
AUB_A11_710142 28 3,924
AUB_A12_71043 27 5,241
AUB_A13_71085 85 14,999
AUB_A14_710149 84 14,306
AUB_A15_80930 108 19,043
AUB_A16_80956 365 53,970
AUB_A17_80957 68 7,168
AUB_A1a_30822 50 5,248
AUB_A1b_30968 63 4,217
AUB_A1c_30906 174 17,330
AUB_A1d_30910 70 9,130
AUB_A2_40805K 247 22,232
AUB_A3_40834 110 14,345
AUB_A4_50817 152 13,085
AUB_A6_61009K 114 18,987
AUB_A7_70807 94 12,359
AUB_A8_70829 60 11,910
AUB_A9_71031 95 10,851
AUB_Y‐1_41016 270 26,267
AUB_Y‐2_61102 1,925 205,886
AUB_Y‐3_101255 631 84,525
AUB_Y‐4_101002 312 33,677
AUBWV016 539 69,999
MSTTR02A 401 51,714
MSTTR22A 223 38,240
SRT11 218 16,918
WINT003 145 22,140
WINT035 1,846 239,999
Page 502 of 1163
6
2.2 – Average Dry Day Flow (ADDF)
A first step in conducting an RDII analysis is to determine Average Dry Day Flow (ADDF) at each
metering location and this information is used in two ways. The first is that the ADDF is
subtracted from the flow measured during a storm and the difference is RDII. The second is
that the shape of the ADDF hydrograph is used to estimate what portion of the ADDF is
wastewater production (WWP) and what portion is base infiltration (BI).
Early in the analysis of RDII data it was observed that there were two distinctly different rain‐to‐
RDII relationships; a Summer season ending 6 November and Winter which is the rest of the
metering period. This distinction is common and is a function of vegetation; either actively
growing or dormant. Figure 2 shows the hydrograph for the AUB_Y‐1 meters with selected dry
days shown by the vertical shaded green (weekday) and blue (weekend) bars. Summer days are
in October and winter days are in April.
Figure 2 Selected Dry Days are shaded in green (weekday) and blue (weekend).
Page 503 of 1163
7
For each meter the ADDF is decomposed into the two components of wastewater production
(WWP) and base infiltration (BI) as shown in Figure 3. In this case the summer weekday value is
0.324 mgd (324,000 gallons per day) and winter weekday is 0.335 mgd. The estimated base
infiltration (BI) is based on the shape of the weekday ADDF hydrograph and is shown as the red
horizontal line at 0.082 mgd. The percent of base infiltration at this site is 0.082 mgd/0.324
mgd or 25% base infiltration.
Figure 3 Average Dry Day Diurnal Curves for Weekdays and Weekends
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0 3 6 9 12 15 18 21
Dry Weather Flow
AUB_Y-1_41016
MGDHours
2020 Summer Weekdays 2020 Summer Weekdays Base Infiltration 2020 Summer Weekends
2021 Winter Weekdays 2021 Winter Weekends
Summer Weekday
=0.324 mgd
Winter Weekday
=0.335 mgd
Winter Weekday Base
Infiltration =0.082 mgd
Page 504 of 1163
8
Calculating Base Infiltration
Base Infiltration (BI) is a component of I/I that is related to ground water and that could include
leaking water lines, leaking plumbing fixtures and springs. It may be a seasonal phenomenon as
rainfall affects ground water levels, but generally remains relatively steady over weeks and
months. The most rigorous method for determining the quantity of base infiltration originating
in a basin is to determine the quantity of potable water flowing into each building within the
basin and subtract it from the measured sewer flow coming out of the basin. This is an
expensive and sometimes difficult exercise and usually is not done for a short‐term flow
metering study.
For this analysis an empirical method for estimating base infiltration was used. The method is
borrowed from the potable water industry, which has estimated that the rate of residential
water usage during the overnight hours is approximately 12% of the daily average use. This
empirical method provides an estimate of the average wastewater production (WWP) in a Basin
based on the average flow (Qavg‐D) and minimum flow (Qmin‐D) of the average dry day
hydrograph.
Subtracting WWP from Qavg‐D provides an estimate of base infiltration (BI). The equations to
estimate WWP and BI are listed in Equations BI 1 and BI 2.
Equation BI 1
𝑊𝑊𝑃 ൌ ሺ𝑄௩ି െQ୫୧୬ିୈ ሻ
𝑋
Where; X = .88 (from potable water use records)
Equation BI 2
𝑄ூ ൌ𝑄௩ି െ 𝑊𝑊𝑃
In concept, this method generates an estimate of WWP based on the difference between
average flow and minimum flow. As base infiltration varies over the year the difference
between average and minimum flow (and WWP) is expected to remain constant. This method
of estimating is reliable for residential neighborhoods with sewer basin sizes on the order of
20,000 LF.
A refinement to this empirical method, the Stevens/Schutzbach equation, uses a curve fitting
technique to increase the reliability of the BI estimation at meters with higher flows. As sewer
sheds become larger with longer travel times, the normal dry day hydrograph flattens, which in
turn affect the minimum to average relationships. Equation BI 3 is the Stevens/Schutzbach
equation that was used to estimate base infiltration in all Basins. Qavg‐D is the average flow and
MDF is the minimum flow of the dry day hydrograph.
Equation BI 3
Stevens/Schutzbach Equation
Q୍ ൌ 0.4 ∗ Q ୫୧୬ିୈ
1 െ 0.60ሺ
Q୫୧୬ିୈQୟ୴ିୈ
ሻ୕౬ౝషీబ.ళబ
Page 505 of 1163
9
Equation BI 3 is also dependent on average and minimum flows that occur in traditional
residential flow patterns. Reliability decreases in non‐residential basins and in basins where the
flow meter measures flow from cycling pump stations. Although there are several limitations,
this method is considered the best for estimating BI in residential areas using only flow data. In
commercial or industrial areas this method can produce unreliable results.
Figure 4 is a graph of the gross average dry day flow (ADDF), the wastewater production and
base infiltration at each meter. The term, “gross,” refers to the meter measurement prior to
any upstream meter subtraction.
Figure 4 ADDF Wastewater Production and Base Infiltration
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Dry Day Flow Parameters
October 2020 - Weekdays
Flow(MGD)Basin AUB_A1_30820AUB_A10_710151AUB_A11_710142AUB_A12_71043AUB_A13_71085AUB_A14_710149AUB_A15_80930AUB_A16_80956AUB_A17_80957AUB_A1a_30822AUB_A1b_30968AUB_A1c_30906AUB_A1d_30910AUB_A2_40805KAUB_A3_40834AUB_A4_50817AUB_A6_61009KAUB_A7_70807AUB_A8_70829AUB_A9_71031AUB_Y‐1_41016AUB_Y‐2_61102AUB_Y‐3_101255AUB_Y‐4_101002AUBWV016MSTTR02AMSTTR22ASRT11WINT003WINT035GrossAvg GrossWW GrossBI
Basin
GrossAvg 0.30 0.29 0.06 0.01 0.06 0.17 0.06 0.24 0.05 0.02 0.03 0.20 0.08 4.95 0.22 0.25 0.08 0.14 0.14 0.05 0.32 0.84 0.51 0.14 0.26 1.90 0.47 0.78 2.96 1.21
GrossWW 0.20 0.17 0.04 0.01 0.04 0.09 0.04 0.12 0.03 0.00 0.01 0.14 0.06 3.43 0.08 0.14 0.05 0.09 0.09 0.03 0.24 0.59 0.30 0.10 0.08 1.08 0.51 2.13 0.86
GrossBI 0.10 0.14 0.02 0.00 0.02 0.08 0.02 0.12 0.02 0.01 0.01 0.06 0.02 1.46 0.14 0.11 0.03 0.05 0.05 0.02 0.08 0.25 0.21 0.05 0.17 0.36 0.27 0.84 0.35
Page 506 of 1163
10
The Net ADDF, Net WWP, and Net BI are normalized by the length of sewer in each basin to
obtain an apples‐to‐apples comparison expressed in GPD/LF of public sewer as shown in Figure
5. The WWP values are a function of land use with WWP in medium‐density residential sewer
sheds typically being in the range of 2 ‐ 5 gpd/LF. Low density residential areas can produce
less than 2 gpd/LF and high density residential (apartments) and business districts can be 5 to
10 gpd/LF range. Basins that have wastewater productions that appear to be outliers are
AUB_A2 (imbalance), MSTTR22A and WINT035.
Figure 5 Net ADDF, Wastewater Production and Base Infiltration values in GPD/LF.
0
5
10
15
20
25
30
35
40
Net Dry Day Flow GPD/LF
October 2020 - Weekdays
Flow(Gal/Day/ft)Basin AUB_A1_30820AUB_A10_710151AUB_A11_710142AUB_A12_71043AUB_A13_71085AUB_A14_710149AUB_A15_80930AUB_A16_80956AUB_A17_80957AUB_A1a_30822AUB_A1b_30968AUB_A1c_30906AUB_A1d_30910AUB_A2_40805KAUB_A3_40834AUB_A4_50817AUB_A6_61009KAUB_A7_70807AUB_A8_70829AUB_A9_71031AUB_Y‐1_41016AUB_Y‐2_61102AUB_Y‐3_101255AUB_Y‐4_101002AUBWV016MSTTR02AMSTTR22ASRT11WINT003WINT035NetAvg NetWW NetBI
Basin
NetAvg 7.9 1.1 2.2 2.7 4.0 7.8 3.0 4.5 7.1 3.1 6.3 11.6 8.7 0.0 15.3 19.1 4.3 0.7 11.8 4.5 12.1 4.1 6.0 4.3 3.7 3.9 7.4 37.5 5.1
NetWW 5.4 1.1 2.2 2.5 2.6 3.9 2.0 2.3 4.3 0.9 3.6 8.1 6.6 0.0 5.3 10.5 2.9 0.7 7.3 3.1 9.0 2.9 3.6 2.9 1.2 3.9 6.1 30.1 3.6
NetBI 2.5 0.3 1.3 4.0 1.1 2.2 2.8 2.2 2.8 3.4 2.2 10.0 8.6 1.5 4.5 1.4 3.1 1.2 2.5 1.3 2.5 1.3 7.4 1.5
Page 507 of 1163
11
2.3 ‐ Rainfall Analysis
This rainfall analysis looks at the total rainfall recorded by each rain gauge for each storm and
looks at the maximum return frequency for each rain gauge and each storm. There were
thirteen storms that were analyzed. Selecting a storm in King County during the winter is
subjective because of the frequent but small amounts of rainfall. Selecting a storm is a balance
between seeing a significant flow response to rain followed by a return to normal before the
following rain. Table 2 lists the measured rainfall for each of the three rain gauges and thirteen
storms. The right side of this table displays the maximum return frequency corresponding
duration for each storm. Yellow shaded storms exceeded a one‐year return frequency.
Table 2 Rainfall totals and Maximum Return Frequency
Storm AUB_RG RG41Y RGAUB AUB_RG RG41Y RGAUB
10/9/2020 1.69 1.84 1.53 16.9‐yr;6‐hr;1.3‐in 12.5‐yr;6‐hr;1.2‐in 10.6‐yr;6‐hr;1.2‐in
10/13/2020 0.6 0.6 0.59 1.1‐yr;30‐min;0.2‐in 8.8‐mo;30‐min;0.1‐in 10.7‐mo;30‐min;0.2‐in
11/3/2020 0.89 0.86 0.83 11.1‐mo;1‐hr;0.3‐in 9.9‐mo;1‐hr;0.2‐in 10.7‐mo;1‐hr;0.3‐in
11/14/2020 1.08 1.08 0.99 6.7‐mo;3‐hr;0.3‐in 6.5‐mo;3‐hr;0.3‐in 5.9‐m o;3‐hr;0.3‐in
12/8/2020 1.03 0.93 0.99 7.2‐mo;24‐hr;1.0‐in 5.9‐mo;24‐hr;0.8‐in 7.0‐mo;24‐hr;1.0‐in
12/15/2020 1.05 0.97 0.9 7.4‐mo;15‐min;0.1‐in 7.6‐mo;30‐min;0.1‐in 8.3‐mo;15‐min;0.1‐in
12/20/2020 1.1 1.15 1.1 11.4‐mo;30‐min;0.2‐in 10.7‐mo;30‐min;0.2‐in 11.4‐mo;30‐min;0.2‐in
1/2/2021 3.54 3.33 2.94 8.7‐yr;6‐hr;1.2‐in 6.5‐yr;12‐hr;1.6‐in 4.0‐yr;6‐hr;1.0‐in
1/11/2021 3.35 3.23 3.09 3.9‐yr;24‐hr;2.2‐in 3.5‐yr;24‐hr;2.1‐in 3.4‐yr;24‐hr;2.1‐in
1/31/2021 1.22 1.2 1.09 6.0‐mo;24‐hr;0.8‐in 5.7‐mo;24‐hr;0.8‐in 5.7‐m o;24‐hr;0.8‐in
2/14/2021 1.56 1.37 0.82 8.6‐mo;24‐hr;1.2‐in 7.7‐mo;24‐hr;1.1‐in 4.5‐mo;24‐hr;0.6‐in
2/21/2021 1.83 1.62 1.63 10.5‐mo;18‐hr;1.4‐in 7.8‐mo;18‐hr;1.0‐in 9.9‐mo;18‐hr;1.3‐in
3/24/2021 0.6 0.69 0.56 6.3‐mo;30‐min;0.1‐in 1.0‐yr;15‐min;0.1‐in 5.1‐mo;6‐hr;0.4‐in
Maximum Return FrequencyRainfall (In.)
Page 508 of 1163
12
2.4 ‐ RDII Volumes
The rainfall dependent infiltration and inflow (RDII) is determined on both a gross and net flow
basis. Figure 6 shows the process for the storm of 2 January 2021 at meter AUB_A8. The blue
hydrograph is the gross flow measured by the meter and the gold hydrograph is the gross RDII
calculated at the meter. If there is an upstream meter, net RDII is calculated by subtracting two
gross RDII hydrographs.
A key observation here is how reflective the RDII hydrograph is to the rainfall. The fact that
flow increases are timed almost exactly with the rainfall suggest the RDII sources are likely
traditional inflow sources. The hydrographs for the 8 largest storms for all meters are included
in Appendix B.
Figure 6 Storm hydrograph showing calculated RDII
Storm Event - 1/2/2021 7:00:00 AM
AUB_A8_70829
Rainfall (in)Flow (MGD)StormsDate
1 Fri
Jan 2021
2 Sat 3 Sun 4 Mon 5 Tue 6 Wed 7 Thu 8 Fri
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.0
0.5
1.0
Rainfall Gross Q Gross I/I
Precomp(-)2021 Winter Weekdays 2021 Winter Weekends
Rainfall
Measured
Flow
Calculated
RDII
ADDF
Pattern
Page 509 of 1163
13
Figure 7 shows the RDII volumes in million gallons from the 6 largest storms. These values are
total RDII volume measured during the storm and recovery period.
Figure 7 Gross RDII volume for each meter for the 6 largest storms.
0
2
4
6
8
10
12
14
Rainfall Dependent Inflow/Infiltration
GrossIIVolumeEvent for Six Largest Storms
Volume(Million Gallons)BasinAUB_A1_30820AUB_A10_710151AUB_A11_710142AUB_A12_71043AUB_A13_71085AUB_A14_710149AUB_A15_80930AUB_A16_80956AUB_A17_80957AUB_A1a_30822AUB_A1b_30968AUB_A1c_30906AUB_A1d_30910AUB_A2_40805KAUB_A3_40834AUB_A4_50817AUB_A6_61009KAUB_A7_70807AUB_A8_70829AUB_A9_71031AUB_Y‐1_41016AUB_Y‐2_61102AUB_Y‐3_101255AUB_Y‐4_101002AUBWV016MSTTR02AMSTTR22ASRT11WINT003WINT03509‐Oct‐20 09:00 PM 20‐Dec‐20 11:00 PM 02‐Jan‐21 07:00 AM 11‐Jan‐21 08:00 AM 14‐Feb‐21 07:00 AM 21‐Feb‐21 09:00 PM
Page 510 of 1163
14
Figure 8 shows the Net Volume of RDII from the 6 largest storms. Net RDII is the volume
generated within each sewer shed. Upstream RDII is subtracted from the downstream RDII.
2.5 ‐ RDII Severity
RDII volumes in Sections 2.4 are ‘normalized’ by dividing the RDII values by both the basin size
and inches of rainfall to get an apples‐to‐apples comparison of RDII severity. The most reliable
normalization is by length of sewer (Gallons/LF/Inch of rainfall) in a sewershed and the second
method is by acreage (Capture Coefficient or Percent Rainfall entering sewer). Normalizing by
LF is more reliable because it better reflects the possible connections on the ‘sewer frontage’
and does not include non‐sewered areas such as parks, school athletic fields, cemeteries etc.
Capture coefficient values tend to be biased low because of the unsewered areas.
Figure 8 Net RDII volumes from the 6 largest storms.
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Rainfall Dependent Inflow/Infiltration
NetIIVolumeEvent for Six Largest Storms
Volume(Million Gallons)BasinAUB_A1_30820AUB_A10_710151AUB_A11_710142AUB_A12_71043AUB_A13_71085AUB_A14_710149AUB_A15_80930AUB_A16_80956AUB_A17_80957AUB_A1a_30822AUB_A1b_30968AUB_A1c_30906AUB_A1d_30910AUB_A2_40805KAUB_A3_40834AUB_A4_50817AUB_A6_61009KAUB_A7_70807AUB_A8_70829AUB_A9_71031AUB_Y‐1_41016AUB_Y‐2_61102AUB_Y‐3_101255AUB_Y‐4_101002AUBWV016MSTTR02AMSTTR22ASRT11WINT003WINT03509‐Oct‐20 09:00 PM 20‐Dec‐20 11:00 PM 02‐Jan‐21 07:00 AM 11‐Jan‐21 08:00 AM 14‐Feb‐21 07:00 AM 21‐Feb‐21 09:00 PM
Page 511 of 1163
15
There is not a published set of standards for RDII severity expressed by either method because
the measured value is affected by the antecedent moisture condition of the soil. These
threshold levels will be higher in the winter when vegetation is dormant or after a series of
rainfall with saturated soil conditions. The threshold values with be lower in the summer and
fall when vegetation is actively taking up moisture and after a long dry period with low soil
moisture. This study was conducted in both low antecedent moisture conditions in October
and November and higher moisture condition later in the metering period.
Figure 9 shows RDII normalized by sewer length (Gal/LF/inch) and sorted on the 2 January
storm. For severity normalized by length, a general rule of thumb is that sewersheds in the
winter/spring with values less than ~10 to 12 Gal/LF/Inch do not have excessive RDII, values up
to 20 Gal/LF/Inch are marginal and values over 20 Gal/LF/Inch are considered excessive. In low
moisture conditions values greater than 10 Gal/LF/inch may be considered to fall within the
‘marginal’ range. The AUB_A2 basin should be discounted because of the balancing problem
and the 2 Feb storm should be discounted because of the snow melt.
Figure 9 RDII Severity in Gallons/LF/Inch
0
5
10
15
20
25
30
35
Rainfall Dependent Inflow/Infiltration
Gallons/LF/Inch Sorted on 2 Jan Storm
Volume(Gal/ft/in‐Rain)BasinAUB_A2_40805KAUB_A7_70807AUB_A1_30820AUB_A8_70829AUB_Y‐3_101255AUB_A3_40834AUB_A9_71031AUB_Y‐1_41016AUBWV016AUB_A1c_30906MSTTR02AWINT035AUB_A10_710151AUB_Y‐2_61102AUB_A4_50817AUB_A1b_30968AUB_A1d_30910AUB_A6_61009KAUB_A17_80957AUB_A1a_30822AUB_A12_71043SRT11AUB_A14_710149AUB_Y‐4_101002AUB_A16_80956AUB_A13_71085AUB_A15_80930MSTTR22AAUB_A11_71014210/09/2020 09:00 pm 12/20/2020 11:00 pm 01/02/2021 07:00 am 01/11/2021 08:00 am 02/14/2021 07:00 am 02/21/2021 09:00 pm
Page 512 of 1163
16
Although there are no fixed standards for the Capture Coefficient, it is generally considered that values
of less than 5% do not have excessive RDII, between 5% and 7% are marginal and values greater than 7%
to 10% are severe. These threshold values can be lower in low moisture conditions. Figure 10 shows
the Capture Coefficient (percent rainfall entering sewer) for the six largest storms sorted on the 2
January storm. The Capture Coefficient tends to be biased low because it includes non‐sewered areas
such as parks and athletic fields.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Rainfall Dependent Inflow/Infiltration
Capture Coeffiecinet Ranked on 2 Jan Storm
Volume(% Rainfall)BasinAUB_A2_40805KAUB_A8_70829AUB_A7_70807AUB_Y‐3_101255AUB_A3_40834AUB_A9_71031AUB_A1_30820AUB_A10_710151AUBWV016AUB_Y‐1_41016MSTTR02AWINT035AUB_A1c_30906AUB_A6_61009KAUB_Y‐2_61102AUB_A1d_30910AUB_A4_50817AUB_A12_71043AUB_A1b_30968AUB_A17_80957AUB_A14_710149AUB_A1a_30822AUB_A13_71085AUB_A15_80930SRT11AUB_A16_80956MSTTR22AAUB_Y‐4_101002AUB_A11_71014210/09/2020 09:00 pm 12/20/2020 11:00 pm 01/02/2021 07:00 am 01/11/2021 08:00 am 02/14/2021 07:00 am 02/21/2021 09:00 pm
Figure 10 RDII as Capture Coefficient
Page 513 of 1163
17
2.6 ‐ Projected RDII Volumes
A third method is to apply a design storm to the Q vs i plots for each basin. Figure 11 displays
the Q vs. i plots of RDII volume vs. rainfall for AUB_A9 for each storm separated into seasons.
Each data point on this plot is composed of the RDII volume measured during each storm and
the rainfall that fell during the storm. In the top plot a 2.4‐inch (5‐yr., 24‐Hr) storm is applied to
the regression line resulting in a predicted RDII volume of just over 0.24 MG. Because the snow
melt storm of 14 Feb should not be included here, it was removed to generate the bottom plot.
The results did not change much, and the projected RDII volume is 0.24 MG. Appendix C
includes this plot minus the 14 Feb snow melt storm for each basin.
Figure 11 Q vs. i Plots of RDII Volume vs. Rainfall, with and without the snowmelt of 14 Feb 2021.
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020)
(1/2/2021)
(1/11/2021)
(1/31/2021)
(2/21/2021)
(3/24/2021)
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Q vs i - AUB_A9 Minus Snow Melt
Total Event Net RDII Volume vs. Rainfall Depth
Total Event Net RDII Volume (mg)Total Event Rainfall Depth (in)
winter summer
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020)
(1/2/2021)
(1/11/2021)
(1/31/2021)
(2/14/2021) (2/21/2021)
(3/24/2021)
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Q vs i - AUB_A9_All Storms
Total Event Net RDII Volume vs. Rainfall Depth
Total Event Net RDII Volume (mg)Total Event Rainfall Depth (in)
winter summer
Page 514 of 1163
18
a) Which sewersheds generate the most RDII volumes?
Figure 12 shows the projected net volumes from each of the sewersheds based on the Q
vs i projections. It is not surprising the larger sewersheds produce the greatest volume
of RDII. The values from WINT003 and AUB_A2 are treated with less confidence
because of the flow balance issues described earlier. Also, WINT035 and AUBWV016
and not considered part of the Auburn system and are included here just for
completeness of the data set.
0.5
1.0
1.5
2.0
2.5
Q vs. i Volume Projections
Projections of RDII Volume from the 2.4-inch Design Storm Volume(Million Gallons)BasinAUB_Y‐2_61102WINT035AUB_Y‐3_101255WINT003AUBWV016AUB_A2_40805KMSTTR02AAUB_Y‐1_41016AUB_A7_70807AUB_A3_40834AUB_A8_70829AUB_A9_71031AUB_A1c_30906AUB_A10_710151AUB_A6_61009KAUB_A1_30820AUB_A4_50817SRT11AUB_A16_80956AUB_A1d_30910MSTTR22AAUB_Y‐4_101002AUB_A14_710149AUB_A17_80957AUB_A15_80930AUB_A1b_30968AUB_A12_71043AUB_A13_71085AUB_A1a_30822AUB_A11_710142Figure 12 Plot of Net Projected RDII volumes from each sewershed.
Page 515 of 1163
19
b) Sewersheds ranked on projected RDII ‐ in Gal/LF/Inch
The projected RDII volumes from a 2.4‐inch design storm are converted to Gallons/LF/Inch in
the last column on Table 3 and are ranked. The R2 column is the correlation coefficient and
values less than 0.7 are less reliable and the user should be cautious about using the projected
values. Poor correlations can be due to non‐uniform rainfall or some data issue. For example,
the flow from AUB_A11 was shallow and erratic and the RDII was low.
There is not a definitive way to determine when RDII is ‘too much’, but a rule of thumb is that
values greater that 10 gal/LF/Inch or so are probably in the range that deserves attention. But
Keep in mind that larger basins appear to have lower severity than many smaller basins. Basins
Y‐2 and Y‐3 are two largest sewersheds in the Auburn system and generated the most RDII of all
the Auburn sewersheds but fall below the rule of thumb for severity.
Table 3 Projected RDII Volume in Millions of Gallons from a 2.4‐inch storm.
Meter # Storms R
2 X Intercept Slope MG Gal/LF Gal/LF/Inch
WINT003 9 0.36 0.6 0.54 0.97 43.7 18.2
AUB_A2_40805K 9 0.53 0.83 0.54 0.86 38.5 16.0
AUB_A7_70807 9 0.95 0.6 0.22 0.4 32.3 13.4
AUB_A9_71031 9 0.9 0.54 0.13 0.24 22.2 9.3
AUB_Y‐3_101255 9 0.94 0.42 0.94 1.86 22.0 9.2
AUB_A8_70829 9 0.97 0.63 0.14 0.25 21.0 8.8
AUB_A1_30820 9 0.93 0.84 0.09 0.14 20.9 8.7
AUB_Y‐1_41016 9 0.84 0.02 0.22 0.52 19.6 8.2
AUB_A3_40834 9 0.99 0.64 0.15 0.26 18.3 7.6
AUBWV016 9 0.96 0.59 0.5 0.91 13.0 5.4
AUB_Y‐2_61102 9 0.93 0.58 1.38 2.51 12.2 5.1
AUB_A10_710151 9 0.94 0.27 0.08 0.17 12.1 5.0
AUB_A1c_30906 9 0.97 0.65 0.12 0.21 12.0 5.0
MSTTR02A 9 0.89 0.5 0.32 0.61 11.8 4.9
WINT035 9 0.94 0.51 1.24 2.33 9.7 4.1
AUB_A4_50817 9 0.87 0.2 0.06 0.12 9.6 4.0
AUB_A1b_30968 9 0.92 0.08 0.02 0.04 9.3 3.9
AUB_A1d_30910 9 0.94 0.63 0.04 0.08 8.6 3.6
AUB_A6_61009K 9 0.94 0.29 0.07 0.16 8.3 3.4
AUB_A17_80957 9 0.88 0 0.02 0.05 6.7 2.8
SRT11 9 0.32 0 0.04 0.11 6.3 2.6
AUB_A12_71043 9 0.31 0 0.01 0.03 5.6 2.3
AUB_A14_710149 9 0.85 0.02 0.02 0.05 3.7 1.5
AUB_A1a_30822 8 0.59 0 0.01 0.02 3.5 1.5
AUB_A15_80930 9 0.8 0 0.02 0.04 2.1 0.9
AUB_A11_710142 9 0.02 0 0 0.01 2.0 0.8
AUB_A16_80956 9 0.92 0.2 0.05 0.1 1.9 0.8
AUB_Y‐4_101002 9 0.62 0 0.02 0.06 1.7 0.7
MSTTR22A 9 0.81 0 0.02 0.06 1.5 0.6
AUB_A13_71085 9 0.71 0.13 0.01 0.02 1.5 0.6
Net Volume Projected from a 2.4‐inch storm applied to Winter Se ason Q vs I Plot
Page 516 of 1163
20
3.0 – Operational Capacities
Operational capacity is the actual flow that a pipe can carry as opposed to the theoretical capacity based
on pipe slope and roughness of the pipe section in which the meter is installed. The technique
for this analysis is to plot a depth‐velocity scattergraph of the meter data upon which are also
plotted a pipe curve (Lanfear‐Coll [Manning] or Stevens‐Schutzbach) and Iso‐Q lines. The
technique requires that the pipe fill to around 80% full so that hydraulic behavior can be
observed. As it turns out only one pipe reached more than 60% full and that was AUB_Y‐1 at
the Green River siphon and it surcharged to 24 inches. Figure 13 is a scattergraph of meter
AUB_Y‐1 it shows a Theoretical Capacity of approximately 4 mgd and the Operational Capacity
of 0.8 mgd circled in red. It surcharged during the 2 Jan and 11 Jan storms.
In this case both the Lanfear‐Coll and the Stevens‐Schutzbach curves are plotted. What is
observed here is that the theoretical capacity, as established by the Stevens‐Schutzbach curve
is around 4 mgd in this 17.5‐inch pipe. However, the actual data show that the sewer enters
backwater at around 7 inches of depth and carries around 0.8 mgd throughout the surcharge to
around 24 inches. There is a distinction in hydraulic conditions based on how data behave
relative to the Iso‐Q lines. Data will adhere to an Iso‐Q line if there is a ‘Hard restriction’
downstream such as an under‐sized pipe or a siphon.
GIS data indicated there is a double barrel siphon downstream of this meter with 8‐inch and 12‐
inch barrels. However, the scattergraph pattern reveals that only one barrel is active.
Scattergraphs for all sites are included in Appendix B.
.
Figure 13 Scattergraph reveals both Theoretical and Operation Capacity of the sewer.
Page 517 of 1163
21
4.0 – Subjective Views of Hydrographs
In addition to the numerical analysis in this report we have plotted storm hydrographs for the
eight largest storms at each meter in Appendix B. It is noticeable that there appear to be minor
sources of Inflow during high intensity storms of October as shown in Figure 14. The gold RDII
hydrograph follows the rainfall hyetograph very closely indicating that the RDII is the direct
result of rainfall, a classic inflow source such as a roof drain. This hydrograph is in 15‐minute
time steps, but the observations can easily be made in the 60‐minute plots in Appendix B.
Figure 14 Hydrographs in 15‐minute time steps showing what appears to be source(s) of Inflow.
Storm Event - 10/13/2020 1:00:00 AM
AUB_A8_70829
Rainfall (in)Flow (MGD)StormsDate
13 Tue
Oct 2020
14 Wed
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.0
0.5
1.0
Rainfall Gross Q Gross I/I Precomp(-)2020 Summer Weekdays
Page 518 of 1163
22
On the other hand, the hydrograph from AUB_A2 in Figure 15 reveals a sewershed that does
not include many ‘spikes’ from sources of Inflow, but does reflect dramatic influence of base
infiltration as the soil moisture increases and declines slowly over the wet season.
Figure 15 Sewershed AUB_A3 experiences RDII more similar to infiltration rather than inflow.
Page 519 of 1163
23
5.0 – Conclusions
1. By design this metering period captured the traditional dry weather period in October
and the wet season beginning in November. Five storms recorded a return frequency of
at least one year in at least one rain gauge. Two January storms exceeded 3 inches of
rainfall.
2. The sewer system handled these storms readily with only one sewer surcharging and
that was due to the restricted flow at a downstream siphon. The Green River siphon at
AUB_Y1 is shown to have an 8‐inch barrel and a 12‐inch barrel, but the scattergraph
indicates that only one barrel was functioning.
3. The wide range of basin sizes between the larger ‘Y’ basins and the smaller ‘A’ basins is
what would have been expected. The ‘Y’ basin generated the most RDII, but RDII
severity of the smaller basins was both higher and lower than the ‘Y’ basin. The intuitive
observation about severity should be avoided; “The large basins don’t look so bad”.
4. Many of the ‘A’ basins performed well with small RDII contributions, but some ‘A’ basins
experience minor sources of Inflow.
5. The RDII severity calculations are low compared to what is often experienced in other
collection systems.
Page 520 of 1163
24
Appendix A – Sewershed Map
Appendix B ‐ Sliicer Graphics
Appendix C – Q vs i Plots
Page 521 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
City of Auburn
Auburn, WA King County
City of Auburn
Final Report Submitted to the City of Auburn
May 28, 2021
Page 522 of 1163
2
Tuesday, September 22, 2020 to Wednesday, April 14, 2021
May 28, 2021
Bob Elwell
City of Auburn Sewer Utility Engineer
25 West Main Street
Auburn, WA 98001
SUBJECT: Auburn Temporary Flow Monitoring Report
Dear Bob,
ADS is pleased to submit this temporary flow monitoring report for the city of Auburn. The
metering was conducted at twenty-four (24) locations. The study was conducted during the
period of Tuesday, September 22, 2020 to Wednesday, April 14, 2021 .
The report contains depth, velocity, and quantity hydrographs based on an hourly average as
well as daily long tables for the metering period. All data can easily be exported from the PRISM
data hosting website.
In addition, we would be happy to further explain any details about the report that may seem
unclear. Should you have any questions or comments, you may contact the Project Manager,
Shawn Hoglan at 206-571-0130.
It has been our pleasure to be of service to you in the performance of this project. Thank you
for choosing ADS products and services to meet your flow monitoring needs.
Sincerely,
ADS ENVIRONMENTAL SERVICES
Tony Locke
Data Analyst III, ADS LLC Huntsville, AL
Page 523 of 1163
3
The City of Auburn
Temporary Flow Monitoring Project
Prepared For:
Bob Elwell
City of Auburn Sewer Utility Engineer
25 West Main Street
Auburn, WA 98001
Prepared By:
ADS, LLC
4455 S. 134th Place
Tukwila, WA 98168
Page 524 of 1163
4
AUB_A1_30820
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 3.87 1.68 0.337
Minimum 2.53 1.08 0.121
Maximum 5.41 2.25 0.713
Min Time 10/03/2020 3:00:00 AM 10/31/2020 5:00:00 AM 10/03/2020 5:00:00 AM
Max Time 01/12/2021 10:00:00 AM 01/12/2021 10:00:00 AM 01/12/2021 10:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 94.934
VFINAL (ft/s) 94.934
QFINAL (MGD - Total MG) 94.934
Pipe Elliptical (21 in H x 21 in W)
Silt 0.00 (in)
Page 525 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Hydrograph Report
AUB_A1_30820
Page 526 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Scattergraph Report
AUB_A1_30820
Page 527 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A1_30820Pipe: Elliptical (21 in H x 21 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 04:25 3.27 16:05 4.54 3.80 04:30 1.47 10:50 2.02 1.70 04:30 0.228 16:05 0.486 0.330 0.330 0.51
01/02/2021 04:35 3.24 21:25 5.25 4.12 04:35 1.45 21:45 2.31 1.81 04:35 0.220 21:35 0.698 0.403 0.403 1.69
01/03/2021 05:05 3.77 01:05 5.17 4.43 05:10 1.80 00:30 2.25 2.00 05:10 0.347 00:25 0.663 0.480 0.480 0.65
01/04/2021 03:50 3.64 12:35 5.03 4.38 03:55 1.74 12:35 2.17 1.96 04:10 0.322 12:35 0.622 0.464 0.464 0.48
01/05/2021 03:35 3.54 14:35 5.03 4.30 02:15 1.67 14:35 2.22 1.95 03:55 0.310 14:35 0.635 0.450 0.450 0.52
01/06/2021 05:30 3.65 15:50 5.17 4.31 04:10 1.74 16:05 2.27 1.92 06:20 0.326 15:50 0.667 0.444 0.444 0.22
01/07/2021 04:30 3.54 16:25 5.01 4.22 04:05 1.58 16:20 2.24 1.83 04:25 0.277 16:25 0.634 0.414 0.414 -
01/08/2021 04:35 3.46 12:50 4.68 4.16 03:30 1.54 15:55 2.05 1.81 04:45 0.259 14:05 0.521 0.400 0.400 0.22
01/09/2021 04:25 3.52 14:55 4.62 4.06 03:30 1.52 14:20 2.02 1.78 03:30 0.264 14:30 0.508 0.379 0.379 -
01/10/2021 04:30 3.43 12:20 4.42 3.96 02:55 1.42 12:25 1.97 1.75 02:55 0.238 12:25 0.469 0.360 0.360 0.07
01/11/2021 04:00 3.40 11:35 5.14 4.29 04:00 1.47 11:40 2.30 1.87 04:00 0.241 11:40 0.677 0.437 0.437 1.06
01/12/2021 00:30 4.09 09:55 5.56 4.83 00:30 1.70 10:35 2.33 2.09 00:30 0.362 09:55 0.750 0.570 0.570 2.10
01/13/2021 06:05 3.82 15:50 5.28 4.62 22:35 1.78 11:15 2.33 2.04 05:05 0.367 15:50 0.700 0.520 0.520 0.09
01/14/2021 04:40 3.65 16:00 5.47 4.49 01:35 1.75 16:05 2.24 1.98 04:45 0.334 16:00 0.708 0.485 0.485 0.01
01/15/2021 02:40 3.67 12:15 5.04 4.43 04:35 1.65 12:05 2.27 1.91 04:50 0.309 12:15 0.649 0.461 0.461 0.09
01/16/2021 04:20 3.71 12:15 4.87 4.33 05:05 1.61 12:45 2.14 1.86 04:20 0.302 12:45 0.583 0.434 0.434 -
01/17/2021 05:30 3.63 11:40 4.78 4.25 07:15 1.62 18:00 2.08 1.84 06:30 0.296 11:45 0.544 0.417 0.417 0.10
01/18/2021 03:45 3.54 16:15 5.03 4.31 02:45 1.56 15:55 2.19 1.86 03:50 0.274 16:40 0.619 0.433 0.433 -
01/19/2021 03:50 3.51 16:35 4.99 4.24 03:35 1.55 16:30 2.27 1.85 03:50 0.264 16:35 0.641 0.420 0.420 0.01
01/20/2021 03:15 3.47 12:55 4.97 4.18 04:05 1.55 12:45 2.26 1.83 03:10 0.266 12:45 0.630 0.407 0.407 -
01/21/2021 03:05 3.48 16:10 4.97 4.18 05:00 1.49 16:15 2.18 1.81 05:00 0.255 16:10 0.609 0.404 0.404 0.11
01/22/2021 04:45 3.46 14:05 4.95 4.14 03:05 1.50 13:55 2.20 1.82 03:05 0.255 14:05 0.607 0.400 0.400 -
01/23/2021 06:10 3.43 13:00 4.91 4.06 06:10 1.51 13:05 2.17 1.79 06:10 0.249 13:05 0.599 0.383 0.383 -
01/24/2021 05:25 3.35 11:35 4.46 4.00 04:05 1.50 15:15 2.02 1.77 05:20 0.245 10:35 0.471 0.370 0.370 0.16
01/25/2021 04:10 3.39 16:15 5.02 4.15 05:10 1.51 16:05 2.14 1.76 04:10 0.249 16:15 0.609 0.387 0.387 0.04
01/26/2021 03:30 3.42 13:40 4.93 4.10 03:20 1.52 13:40 2.16 1.79 03:35 0.251 13:40 0.600 0.387 0.387 -
01/27/2021 04:05 3.33 09:50 4.86 4.08 02:50 1.46 09:50 2.16 1.80 02:50 0.236 09:50 0.589 0.389 0.389 0.14
01/28/2021 02:25 3.41 15:40 4.96 4.12 04:35 1.52 15:45 2.14 1.82 03:15 0.251 15:35 0.592 0.398 0.398 0.24
01/29/2021 05:55 3.32 11:40 4.54 3.99 03:35 1.48 11:25 1.97 1.78 03:35 0.236 11:40 0.484 0.372 0.372 0.03
01/30/2021 04:40 3.33 13:55 4.51 3.93 06:40 1.50 13:10 2.01 1.77 06:40 0.238 13:10 0.489 0.361 0.361 0.07
01/31/2021 05:15 3.33 11:10 4.33 3.89 05:20 1.47 13:00 1.95 1.75 05:15 0.235 11:10 0.449 0.351 0.351 0.12
02/01/2021 01:55 3.46 15:45 5.11 4.18 01:55 1.51 16:20 2.22 1.81 01:55 0.253 15:45 0.646 0.405 0.405 0.82
02/02/2021 03:45 3.52 15:55 5.02 4.33 03:50 1.55 15:55 2.16 1.83 03:50 0.267 15:55 0.615 0.430 0.430 0.31
02/03/2021 04:00 3.65 14:20 5.16 4.29 03:30 1.53 14:20 2.11 1.77 04:00 0.280 14:20 0.625 0.408 0.408 0.06
02/04/2021 02:50 3.58 14:05 5.42 4.26 02:50 1.46 14:05 2.21 1.71 04:05 0.256 14:05 0.701 0.393 0.393 0.07
02/05/2021 04:10 3.58 11:25 4.87 4.19 02:50 1.45 11:20 2.00 1.69 04:05 0.258 11:20 0.544 0.376 0.376 0.01
02/06/2021 05:15 3.56 13:10 4.79 4.11 02:55 1.45 13:10 1.98 1.68 02:55 0.254 13:10 0.527 0.364 0.364 0.01
02/07/2021 06:05 3.43 10:35 4.63 4.05 04:35 1.41 10:30 1.88 1.66 06:00 0.239 10:35 0.477 0.353 0.353 -
02/08/2021 04:20 3.48 13:55 4.60 4.11 04:00 1.44 13:10 1.92 1.69 04:20 0.244 13:50 0.474 0.366 0.366 -
02/09/2021 04:55 3.32 13:00 4.53 4.04 03:20 1.36 09:50 1.86 1.68 03:20 0.216 13:00 0.456 0.356 0.356 -
02/10/2021 04:30 3.32 11:25 4.67 4.01 04:25 1.26 14:55 2.00 1.70 04:25 0.199 09:05 0.501 0.358 0.358 -
02/11/2021 04:45 3.30 14:50 4.86 4.00 03:15 1.36 14:40 2.10 1.70 03:15 0.216 14:40 0.568 0.356 0.356 -
02/12/2021 04:55 3.28 13:25 4.45 3.93 02:15 1.40 13:20 1.90 1.64 05:00 0.216 13:20 0.452 0.335 0.335 -
02/13/2021 06:05 3.37 13:40 4.40 3.84 04:50 1.34 13:45 1.89 1.61 05:00 0.217 13:40 0.445 0.317 0.317 0.08
02/14/2021 05:40 3.20 12:05 4.32 3.87 05:25 1.34 11:50 1.88 1.66 05:30 0.205 11:50 0.431 0.334 0.334 0.71
02/15/2021 05:20 3.63 12:35 5.18 4.33 02:55 1.58 14:05 2.22 1.86 03:00 0.286 12:40 0.657 0.437 0.437 0.78
02/16/2021 04:00 3.60 11:15 4.94 4.21 04:05 1.55 11:25 2.15 1.82 04:05 0.275 11:25 0.594 0.407 0.407 0.07
02/17/2021 03:00 3.42 11:55 4.63 4.08 04:10 1.53 10:30 2.07 1.81 04:20 0.253 11:50 0.520 0.389 0.389 -
02/18/2021 04:45 3.40 16:00 4.85 4.05 03:00 1.52 16:00 2.17 1.78 04:45 0.249 16:00 0.588 0.378 0.378 0.09
02/19/2021 05:15 3.31 12:30 5.08 4.04 04:10 1.48 12:30 2.21 1.76 04:10 0.238 12:30 0.642 0.373 0.373 0.17
02/20/2021 03:40 3.31 12:25 4.55 3.92 05:05 1.48 12:15 2.04 1.72 03:40 0.234 12:20 0.498 0.350 0.350 0.07
02/21/2021 06:05 3.24 12:20 4.31 3.87 04:20 1.45 18:05 1.93 1.72 06:05 0.222 12:20 0.441 0.344 0.344 0.42
02/22/2021 04:00 3.45 10:20 5.00 4.19 02:55 1.56 10:25 2.20 1.84 02:55 0.262 10:25 0.624 0.412 0.412 0.98
02/23/2021 02:45 3.46 15:05 5.12 4.16 04:00 1.55 15:00 2.27 1.82 05:05 0.260 15:00 0.666 0.402 0.402 0.27
02/24/2021 04:10 3.44 16:25 4.92 4.16 02:45 1.55 16:20 2.10 1.80 04:05 0.259 16:20 0.577 0.400 0.400 -
02/25/2021 03:35 3.44 14:45 4.90 4.19 03:40 1.53 14:50 2.06 1.80 03:40 0.256 14:45 0.564 0.402 0.402 0.18
02/26/2021 02:25 3.49 11:15 4.67 4.14 04:00 1.53 14:55 1.98 1.79 04:00 0.259 11:20 0.499 0.393 0.393 0.10
02/27/2021 04:55 3.47 15:25 4.85 4.04 07:10 1.48 15:20 2.05 1.73 06:15 0.251 15:25 0.557 0.367 0.367 0.02
02/28/2021 06:10 3.35 13:15 4.73 4.00 05:40 1.41 13:15 2.02 1.72 05:40 0.235 13:15 0.528 0.360 0.360 0.02
03/01/2021 04:00 3.33 15:45 4.85 4.08 03:45 1.46 15:40 2.04 1.74 04:00 0.233 15:45 0.551 0.374 0.374 -
03/02/2021 04:20 3.32 14:10 4.89 4.03 03:45 1.42 14:20 2.07 1.71 04:30 0.227 14:15 0.564 0.362 0.362 -
03/03/2021 04:40 3.36 13:05 4.93 4.04 03:25 1.39 13:00 2.10 1.72 04:40 0.229 13:00 0.582 0.365 0.365 -
03/04/2021 04:40 3.34 14:40 4.85 4.00 02:55 1.42 14:30 2.04 1.71 03:55 0.227 14:35 0.551 0.358 0.358 0.20
03/05/2021 02:50 3.34 13:15 4.45 3.93 04:10 1.44 13:40 1.92 1.70 02:50 0.231 13:15 0.455 0.347 0.347 0.05
03/06/2021 05:45 3.27 11:05 4.40 3.86 05:50 1.43 11:05 1.92 1.69 05:50 0.220 11:05 0.455 0.336 0.336 -
03/07/2021 05:00 3.21 12:45 4.27 3.82 06:10 1.43 12:40 1.87 1.67 04:55 0.217 12:45 0.423 0.326 0.326 0.04
03/08/2021 04:15 3.19 16:00 4.79 3.96 03:10 1.41 16:05 2.05 1.70 04:15 0.212 16:05 0.540 0.351 0.351 -
03/09/2021 04:25 3.15 14:55 4.70 3.96 05:20 1.40 16:10 1.99 1.68 03:10 0.208 14:45 0.511 0.346 0.346 0.01
03/10/2021 03:30 3.18 15:40 4.76 3.92 02:45 1.34 15:25 2.07 1.68 03:30 0.209 15:40 0.541 0.343 0.343 -
03/11/2021 03:20 3.15 15:40 4.52 3.81 03:00 1.38 15:40 2.00 1.70 05:30 0.204 15:40 0.491 0.332 0.332 -
Page 528 of 1163
8
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 03:10 3.14 12:35 4.24 3.77 01:40 1.37 12:25 1.90 1.67 02:55 0.204 12:25 0.420 0.320 0.320 -
03/13/2021 05:10 3.10 11:20 4.27 3.72 03:20 1.36 11:15 1.90 1.65 05:05 0.197 11:15 0.430 0.312 0.312 -
03/14/2021 04:50 3.14 15:40 4.26 3.75 04:10 1.39 13:10 1.89 1.66 04:50 0.205 15:35 0.421 0.316 0.316 0.30
03/15/2021 03:25 3.25 12:40 4.74 3.90 01:50 1.40 13:00 2.06 1.71 03:25 0.217 12:35 0.532 0.346 0.346 -
03/16/2021 04:20 3.14 09:50 4.63 3.81 03:05 1.38 10:20 2.05 1.70 03:05 0.203 10:20 0.517 0.332 0.332 -
03/17/2021 02:45 3.14 09:30 4.65 3.85 03:45 1.37 09:30 2.05 1.72 03:45 0.202 09:30 0.524 0.342 0.342 -
03/18/2021 03:00 3.14 10:45 4.68 3.87 04:20 1.33 10:40 2.04 1.70 02:45 0.201 10:45 0.528 0.340 0.340 0.11
03/19/2021 03:30 3.15 10:20 4.33 3.81 03:45 1.39 10:25 1.92 1.69 03:45 0.205 10:25 0.440 0.329 0.329 0.03
03/20/2021 04:50 3.15 11:45 4.35 3.78 04:55 1.35 11:45 1.93 1.66 04:55 0.198 11:45 0.449 0.321 0.321 0.17
03/21/2021 05:25 3.15 11:20 4.18 3.73 03:40 1.38 11:20 1.88 1.65 03:40 0.205 11:20 0.414 0.312 0.312 0.07
03/22/2021 02:50 3.17 11:20 4.41 3.87 02:50 1.37 07:40 1.99 1.71 02:50 0.203 10:50 0.467 0.341 0.341 0.11
03/23/2021 02:20 3.11 15:25 4.57 3.88 02:10 1.36 15:30 2.03 1.71 02:10 0.198 15:30 0.506 0.344 0.344 -
03/24/2021 03:55 3.17 15:15 4.76 3.89 01:25 1.38 15:10 2.07 1.72 03:55 0.204 15:10 0.546 0.347 0.347 0.34
03/25/2021 04:05 3.35 15:35 4.89 3.99 04:05 1.45 15:35 2.12 1.77 04:05 0.232 15:35 0.583 0.370 0.370 0.27
03/26/2021 02:40 3.28 13:55 4.71 3.95 04:00 1.43 13:55 2.08 1.76 02:40 0.227 13:55 0.543 0.361 0.361 -
03/27/2021 04:40 3.20 10:20 4.45 3.84 03:25 1.41 10:10 1.97 1.72 03:25 0.214 10:20 0.472 0.340 0.340 -
03/28/2021 05:10 3.21 13:40 4.46 3.87 03:40 1.43 13:30 1.98 1.72 05:05 0.216 13:30 0.474 0.345 0.345 0.37
03/29/2021 02:40 3.23 14:45 4.73 3.93 03:45 1.45 14:45 2.09 1.75 02:40 0.223 14:45 0.548 0.358 0.358 -
03/30/2021 03:30 3.18 15:00 4.46 3.84 03:25 1.42 15:00 1.93 1.71 03:25 0.212 15:00 0.467 0.338 0.338 -
03/31/2021 03:40 3.14 14:15 4.90 3.90 03:25 1.38 14:15 2.09 1.71 03:40 0.204 14:15 0.575 0.346 0.346 -
04/01/2021 04:15 3.20 15:40 4.65 3.87 03:05 1.42 15:30 2.08 1.71 03:05 0.215 15:30 0.527 0.342 0.342 -
04/02/2021 03:55 3.21 10:20 4.47 3.83 02:40 1.36 10:25 1.98 1.69 02:40 0.206 12:15 0.478 0.332 0.332 -
04/03/2021 02:35 3.00 11:30 4.30 3.69 02:35 1.37 11:45 1.89 1.66 02:35 0.187 11:30 0.428 0.310 0.310 -
04/04/2021 02:50 3.05 12:25 4.28 3.63 04:25 1.37 12:25 1.91 1.64 03:50 0.194 12:25 0.433 0.298 0.298 -
04/05/2021 03:55 3.02 15:30 4.54 3.78 02:25 1.37 15:25 2.02 1.70 02:25 0.193 15:25 0.498 0.330 0.330 -
04/06/2021 02:55 3.05 10:55 4.66 3.84 02:40 1.38 11:35 2.04 1.69 03:55 0.194 10:50 0.521 0.336 0.336 -
04/07/2021 03:35 3.16 11:00 4.61 3.79 03:25 1.30 11:15 1.95 1.65 03:25 0.192 10:55 0.486 0.320 0.320 0.22
04/08/2021 02:10 3.05 14:00 4.73 3.78 04:00 1.37 13:50 2.07 1.69 03:30 0.196 14:00 0.537 0.328 0.328 -
04/09/2021 02:40 3.04 12:05 4.62 3.75 04:00 1.39 12:00 2.02 1.68 04:05 0.194 12:10 0.513 0.323 0.323 0.03
04/10/2021 03:00 3.03 10:50 4.32 3.70 04:45 1.36 11:35 1.91 1.61 03:05 0.192 10:50 0.433 0.302 0.302 0.02
04/11/2021 04:00 3.00 10:55 4.25 3.67 04:00 1.28 10:50 1.83 1.59 04:00 0.174 10:50 0.411 0.295 0.295 -
04/12/2021 04:50 3.03 16:00 4.59 3.75 03:30 1.36 16:00 2.04 1.68 04:50 0.192 16:00 0.513 0.321 0.321 -
04/13/2021 02:40 2.99 14:45 4.65 3.76 03:15 1.35 14:45 2.00 1.67 02:40 0.184 14:45 0.511 0.321 0.321 -
04/14/2021 03:35 2.99 14:25 4.63 3.80 04:25 1.36 14:15 2.04 1.69 03:35 0.186 14:25 0.520 0.331 0.330 -
10/01/2020 - - - - - - - - - - - - - - - - -
10/02/2020 23:55 3.06 09:55 4.25 3.57 23:25 1.30 09:45 1.90 1.60 23:55 0.191 09:50 0.426 0.281 0.172 -
10/03/2020 05:35 2.49 13:15 3.94 3.27 03:35 1.10 13:05 1.72 1.44 03:35 0.115 13:05 0.346 0.229 0.229 0.01
10/04/2020 02:50 2.60 14:35 3.97 3.37 04:00 1.09 14:30 1.73 1.45 04:05 0.121 14:30 0.352 0.241 0.241 0.01
10/05/2020 03:05 2.67 15:55 4.40 3.59 03:05 1.13 15:35 1.86 1.50 03:05 0.130 15:40 0.438 0.271 0.271 -
10/06/2020 03:15 2.77 15:05 4.54 3.73 01:40 1.06 15:00 1.74 1.42 03:10 0.131 15:00 0.427 0.272 0.272 -
10/07/2020 02:35 2.85 09:45 4.72 3.80 02:30 1.07 09:40 1.86 1.45 02:30 0.137 09:45 0.484 0.287 0.287 -
10/08/2020 03:35 3.00 10:35 4.71 3.87 02:15 1.08 10:25 1.83 1.44 03:40 0.147 10:30 0.471 0.292 0.292 -
10/09/2020 04:50 3.02 10:25 4.96 3.86 04:40 1.05 10:20 1.86 1.45 04:40 0.146 10:25 0.522 0.292 0.292 0.64
10/10/2020 05:10 3.47 13:05 4.65 4.08 05:10 1.27 13:00 1.77 1.54 05:15 0.213 13:10 0.451 0.331 0.331 1.04
10/11/2020 03:40 3.10 12:05 4.55 3.96 03:40 1.13 17:05 1.74 1.49 03:40 0.162 17:05 0.429 0.310 0.310 0.53
10/12/2020 03:10 3.20 15:30 4.80 4.11 03:00 1.16 15:35 1.82 1.53 03:00 0.175 15:35 0.486 0.335 0.335 -
10/13/2020 02:30 3.35 13:25 5.02 4.25 00:45 1.14 13:20 1.85 1.54 02:25 0.194 13:20 0.527 0.353 0.353 0.61
10/14/2020 03:45 3.38 10:35 5.08 4.17 04:45 1.21 15:50 1.98 1.56 03:45 0.197 10:40 0.557 0.349 0.349 -
10/15/2020 03:10 3.24 10:25 5.08 4.06 01:30 1.26 14:00 2.01 1.57 03:05 0.194 14:05 0.579 0.337 0.337 -
10/16/2020 03:25 3.19 11:00 4.80 3.95 03:25 1.20 11:00 1.91 1.54 03:25 0.179 11:00 0.512 0.319 0.319 -
10/17/2020 03:35 3.17 11:20 4.63 3.92 04:45 1.16 11:15 1.82 1.52 04:45 0.171 11:15 0.461 0.310 0.310 0.01
10/18/2020 04:25 3.17 12:25 4.58 3.91 04:20 1.17 12:20 1.80 1.50 04:20 0.174 12:30 0.451 0.305 0.305 0.03
10/19/2020 03:25 3.14 11:40 4.67 4.01 01:45 1.13 15:20 1.85 1.55 01:45 0.170 11:40 0.470 0.327 0.327 0.05
10/20/2020 02:55 3.17 10:10 5.05 4.03 03:00 1.19 10:10 2.00 1.53 02:55 0.177 10:10 0.577 0.326 0.326 -
10/21/2020 01:55 3.25 15:20 4.86 4.03 02:45 1.19 15:15 1.97 1.55 02:45 0.185 15:20 0.532 0.330 0.330 0.01
10/22/2020 04:00 3.06 14:25 4.88 4.01 00:50 1.16 15:00 1.93 1.54 03:55 0.168 14:30 0.511 0.328 0.328 -
10/23/2020 03:10 3.28 10:40 4.94 4.11 01:45 1.21 10:40 1.94 1.56 03:00 0.191 10:40 0.542 0.342 0.342 0.20
10/24/2020 03:05 3.40 11:20 4.70 4.02 06:20 1.26 11:15 1.82 1.52 06:20 0.207 11:20 0.473 0.321 0.321 0.02
10/25/2020 04:50 3.09 10:30 4.42 3.80 04:55 1.16 11:10 1.75 1.48 04:55 0.166 11:10 0.412 0.289 0.289 -
10/26/2020 03:35 2.98 11:25 4.46 3.76 00:45 1.20 11:30 1.90 1.54 03:45 0.163 11:30 0.455 0.297 0.297 -
10/27/2020 03:00 2.98 15:10 4.54 3.79 01:40 1.23 15:05 1.87 1.56 03:00 0.165 15:05 0.461 0.303 0.303 -
10/28/2020 02:50 2.89 09:30 4.50 3.70 02:35 1.19 09:20 1.86 1.52 02:35 0.156 09:25 0.452 0.287 0.287 -
10/29/2020 04:55 2.88 09:10 4.43 3.73 03:35 1.16 08:55 1.83 1.50 03:45 0.152 09:10 0.431 0.287 0.287 -
10/30/2020 03:15 2.93 17:10 4.23 3.74 03:50 1.16 10:20 1.78 1.49 03:50 0.153 15:55 0.385 0.283 0.283 0.10
10/31/2020 05:05 3.09 10:55 4.51 3.66 05:05 1.06 12:05 1.72 1.42 05:10 0.150 10:55 0.386 0.262 0.262 -
11/01/2020 05:20 2.69 12:50 4.06 3.41 05:35 1.18 12:55 1.79 1.49 05:35 0.137 12:55 0.375 0.250 0.250 -
11/02/2020 04:55 2.56 16:00 4.03 3.45 04:50 1.19 16:10 1.82 1.55 04:50 0.130 16:10 0.381 0.265 0.265 -
11/03/2020 04:35 2.47 13:25 4.47 3.49 04:25 1.21 13:25 2.02 1.61 04:35 0.125 13:25 0.488 0.283 0.283 0.83
11/04/2020 03:10 2.72 15:30 4.35 3.46 03:05 1.28 15:30 1.98 1.57 03:05 0.152 15:30 0.460 0.269 0.269 0.09
11/05/2020 03:45 2.69 16:30 4.47 3.56 03:50 1.26 10:00 2.01 1.62 03:55 0.146 10:15 0.476 0.291 0.291 0.34
11/06/2020 04:50 2.63 15:00 4.01 3.41 03:25 1.27 10:35 1.80 1.56 04:55 0.142 15:05 0.370 0.261 0.261 0.10
11/07/2020 04:05 2.64 15:55 4.15 3.36 02:25 1.27 15:50 1.85 1.54 04:10 0.144 16:00 0.403 0.252 0.252 0.07
11/08/2020 06:10 2.61 10:50 3.95 3.37 06:05 1.25 11:30 1.82 1.55 06:05 0.141 11:30 0.366 0.255 0.255 0.01
11/09/2020 03:55 2.67 11:50 4.35 3.50 05:00 1.26 13:05 1.95 1.59 03:55 0.147 12:00 0.449 0.277 0.277 0.04
Page 529 of 1163
9
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/10/2020 03:45 2.57 13:05 4.35 3.41 04:00 1.25 12:25 1.97 1.57 03:45 0.138 13:05 0.456 0.265 0.265 0.03
11/11/2020 03:55 2.59 13:35 4.60 3.42 03:30 1.27 13:40 2.14 1.58 03:55 0.140 13:40 0.530 0.269 0.269 -
11/12/2020 04:30 2.57 15:45 4.37 3.42 03:55 1.25 15:45 1.97 1.59 03:55 0.138 15:45 0.461 0.269 0.269 0.16
11/13/2020 02:50 2.78 14:10 4.48 3.56 02:35 1.33 13:45 2.08 1.64 02:50 0.162 14:10 0.500 0.291 0.291 0.38
11/14/2020 04:55 2.68 10:50 4.20 3.47 04:35 1.31 10:45 1.92 1.61 05:05 0.151 10:50 0.421 0.277 0.277 0.47
11/15/2020 05:35 2.69 18:45 4.13 3.43 05:10 1.31 18:40 1.94 1.59 05:20 0.153 18:45 0.419 0.267 0.267 0.19
11/16/2020 04:55 2.74 14:10 4.44 3.59 02:25 1.22 16:30 2.01 1.65 02:25 0.158 16:30 0.479 0.299 0.299 0.31
11/17/2020 04:15 2.75 15:55 4.35 3.57 04:35 1.33 15:55 2.00 1.64 04:35 0.160 15:55 0.465 0.295 0.295 0.20
11/18/2020 03:35 2.72 15:45 4.51 3.57 04:55 1.29 15:50 2.04 1.63 04:55 0.154 15:45 0.497 0.292 0.292 0.30
11/19/2020 03:30 2.90 11:00 4.53 3.65 02:10 1.32 16:10 2.05 1.64 03:30 0.177 16:10 0.501 0.303 0.303 0.50
11/20/2020 03:55 2.72 13:25 4.29 3.52 05:15 1.28 13:25 1.93 1.60 03:55 0.153 13:25 0.441 0.279 0.279 0.01
11/21/2020 05:50 2.74 12:15 4.24 3.48 05:55 1.27 12:15 1.88 1.58 05:55 0.152 12:15 0.422 0.273 0.273 -
11/22/2020 06:00 2.72 17:45 3.94 3.48 05:40 1.25 12:50 1.79 1.58 05:50 0.149 17:45 0.360 0.273 0.273 0.21
11/23/2020 05:00 2.86 16:45 4.46 3.68 03:10 1.32 16:25 1.99 1.67 05:05 0.167 16:50 0.475 0.313 0.313 0.14
11/24/2020 03:25 2.83 13:15 4.54 3.66 03:20 1.27 12:45 1.98 1.63 03:25 0.159 13:15 0.487 0.304 0.304 0.21
11/25/2020 05:05 2.84 15:45 4.32 3.64 04:45 1.31 09:00 1.92 1.63 04:55 0.167 15:45 0.435 0.301 0.301 0.05
11/26/2020 04:55 2.77 12:50 4.26 3.48 04:45 1.27 12:40 1.91 1.58 05:00 0.154 13:00 0.431 0.273 0.273 0.02
11/27/2020 04:50 2.71 12:25 4.12 3.47 04:45 1.31 12:25 1.85 1.58 04:50 0.155 12:25 0.397 0.271 0.271 -
11/28/2020 04:40 2.76 11:10 4.13 3.52 04:30 1.33 11:10 1.88 1.59 04:45 0.161 11:10 0.406 0.278 0.278 0.05
11/29/2020 05:55 2.81 12:20 4.04 3.47 06:35 1.28 12:10 1.81 1.55 05:45 0.161 12:15 0.377 0.266 0.266 -
11/30/2020 04:00 2.90 16:30 4.42 3.71 04:05 1.30 16:35 1.96 1.64 04:05 0.169 16:35 0.466 0.310 0.310 0.36
12/01/2020 04:45 2.80 12:45 4.61 3.59 04:10 1.26 12:40 2.03 1.61 04:30 0.157 12:40 0.512 0.292 0.292 -
12/02/2020 04:05 2.81 11:10 4.66 3.65 06:00 1.29 11:10 2.11 1.66 04:05 0.161 11:10 0.540 0.310 0.310 0.01
12/03/2020 04:50 2.86 11:35 4.49 3.62 01:35 1.31 11:45 2.00 1.66 04:55 0.167 11:45 0.487 0.304 0.304 -
12/04/2020 03:15 2.89 13:45 4.48 3.61 03:10 1.31 13:45 1.99 1.64 03:15 0.170 13:45 0.483 0.298 0.298 -
12/05/2020 04:05 2.89 10:55 4.39 3.54 03:50 1.29 10:55 1.92 1.61 06:15 0.167 10:55 0.452 0.284 0.284 0.03
12/06/2020 07:10 2.74 10:50 3.91 3.42 04:55 1.26 11:55 1.84 1.58 05:10 0.154 11:55 0.362 0.265 0.265 0.03
12/07/2020 03:50 2.73 13:25 4.46 3.56 03:45 1.28 13:20 1.98 1.63 03:45 0.153 13:20 0.476 0.292 0.292 -
12/08/2020 05:00 2.77 16:35 4.76 3.71 03:20 1.24 16:20 2.17 1.69 03:20 0.153 16:35 0.566 0.324 0.324 0.87
12/09/2020 05:10 2.98 14:50 4.55 3.68 05:50 1.34 14:50 2.03 1.67 05:10 0.186 14:50 0.503 0.311 0.311 0.17
12/10/2020 03:45 2.96 12:55 4.49 3.64 03:30 1.33 12:50 2.07 1.67 03:35 0.178 12:55 0.497 0.306 0.306 0.07
12/11/2020 04:40 2.86 10:40 4.56 3.60 04:35 1.29 10:35 2.03 1.65 04:40 0.165 11:10 0.507 0.300 0.300 0.02
12/12/2020 05:05 2.87 11:40 4.26 3.56 05:05 1.32 11:50 1.94 1.61 05:05 0.169 11:50 0.437 0.287 0.287 0.01
12/13/2020 05:40 2.93 12:00 4.27 3.62 05:45 1.31 12:00 1.89 1.61 05:40 0.174 12:00 0.428 0.294 0.294 0.24
12/14/2020 03:10 2.97 16:25 4.49 3.73 02:45 1.32 18:30 2.01 1.67 03:10 0.178 16:20 0.477 0.317 0.317 0.05
12/15/2020 03:40 2.98 14:00 4.71 3.77 03:35 1.34 14:05 2.11 1.70 03:35 0.181 14:00 0.548 0.330 0.330 0.58
12/16/2020 04:10 2.98 13:45 4.74 3.80 04:00 1.35 13:50 2.08 1.70 04:00 0.184 13:50 0.540 0.333 0.333 0.39
12/17/2020 04:30 2.99 14:30 4.58 3.75 03:10 1.35 14:40 2.11 1.71 03:10 0.187 14:30 0.525 0.328 0.328 0.08
12/18/2020 02:55 3.02 08:40 4.30 3.70 02:50 1.42 08:25 1.93 1.70 02:50 0.196 08:40 0.443 0.319 0.319 0.25
12/19/2020 06:35 2.90 17:20 4.25 3.68 04:50 1.39 13:55 1.94 1.69 06:30 0.180 17:20 0.427 0.317 0.317 0.37
12/20/2020 05:25 3.03 12:15 4.08 3.63 04:10 1.44 10:30 1.83 1.67 05:25 0.202 12:15 0.387 0.303 0.303 0.04
12/21/2020 05:05 3.19 17:00 4.76 3.94 05:00 1.49 17:00 2.18 1.77 05:10 0.223 17:00 0.577 0.365 0.365 1.07
12/22/2020 04:05 3.18 16:10 4.90 3.88 05:35 1.44 16:05 2.10 1.71 05:35 0.214 16:05 0.577 0.343 0.343 -
12/23/2020 04:05 3.09 13:40 4.76 3.80 02:30 1.38 13:30 2.06 1.68 04:00 0.202 13:35 0.543 0.329 0.329 -
12/24/2020 04:50 3.05 12:35 4.37 3.70 03:00 1.37 12:25 1.92 1.65 04:45 0.198 12:35 0.442 0.309 0.309 -
12/25/2020 06:25 2.99 15:45 4.15 3.64 05:45 1.34 13:05 1.85 1.63 06:30 0.184 15:40 0.400 0.299 0.299 0.49
12/26/2020 06:45 3.15 12:50 4.20 3.65 03:55 1.40 12:55 1.93 1.65 03:55 0.209 12:55 0.423 0.302 0.302 0.02
12/27/2020 05:00 3.00 13:15 4.41 3.67 03:25 1.37 13:05 1.92 1.65 03:25 0.189 13:15 0.455 0.306 0.306 0.13
12/28/2020 04:10 2.98 13:50 4.34 3.79 03:50 1.33 14:10 1.95 1.70 03:55 0.182 13:50 0.447 0.331 0.331 -
12/29/2020 04:35 3.01 10:20 4.61 3.83 04:55 1.34 10:30 2.06 1.70 04:50 0.184 10:20 0.516 0.336 0.336 0.14
12/30/2020 03:50 3.29 16:10 4.78 3.99 03:50 1.42 16:10 2.08 1.75 03:50 0.222 16:10 0.554 0.366 0.366 0.78
12/31/2020 04:30 3.36 11:20 4.57 3.93 04:20 1.49 11:25 1.99 1.74 04:30 0.240 11:25 0.494 0.355 0.355 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 65.672 30.65
Average 3.87 1.68 0.337
Page 530 of 1163
10
Page 531 of 1163
11
AUB_A10_710151
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 5.60 0.80 0.297
Minimum 3.67 0.37 0.093
Maximum 10.47 1.32 1.093
Min Time 04/04/2021 5:00:00 AM 11/24/2020 5:00:00 AM 04/04/2021 5:00:00 AM
Max Time 01/02/2021 9:00:00 PM 01/03/2021 12:00:00 AM 01/02/2021 9:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 98.75
VFINAL (ft/s) 98.75
QFINAL (MGD - Total MG) 98.75
Pipe Elliptical (23.88 in H x 23.75 in W)
Silt 0.00 (in)
Page 532 of 1163
4455 S. 134th Place
Tukwila, WA 98168
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Hydrograph Report
AUB_A10_710151
Page 533 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A10_710151
Page 534 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A10_710151Pipe: Elliptical (23.88 in H x 23.75 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 06:40 4.69 15:45 8.64 5.80 04:10 0.66 15:40 1.16 0.84 06:40 0.184 15:40 0.753 0.323 0.323 0.51
01/02/2021 06:15 4.28 21:10 11.06 6.65 06:30 0.56 21:25 1.42 0.89 06:30 0.137 21:10 1.246 0.451 0.451 1.69
01/03/2021 06:35 4.39 00:05 10.65 6.44 07:20 0.52 00:15 1.39 0.88 07:20 0.133 00:15 1.193 0.409 0.409 0.65
01/04/2021 03:55 4.75 19:15 7.82 6.14 06:20 0.63 19:10 1.12 0.84 04:00 0.185 19:10 0.629 0.349 0.349 0.48
01/05/2021 04:25 4.41 21:10 7.75 5.97 05:45 0.48 20:55 1.07 0.81 05:45 0.124 20:55 0.600 0.330 0.330 0.52
01/06/2021 06:00 4.97 20:05 6.73 5.96 07:05 0.58 21:25 0.93 0.78 07:05 0.177 20:15 0.401 0.309 0.309 0.22
01/07/2021 04:55 4.26 19:55 6.69 5.78 04:15 0.50 19:55 1.00 0.80 04:15 0.123 19:55 0.458 0.307 0.307 -
01/08/2021 04:05 4.67 17:35 6.92 5.93 06:20 0.60 18:35 1.02 0.83 05:40 0.169 18:35 0.478 0.329 0.329 0.22
01/09/2021 05:30 4.50 13:10 6.83 5.75 06:20 0.58 20:55 1.06 0.84 06:20 0.154 13:35 0.468 0.319 0.319 -
01/10/2021 06:20 4.52 14:15 6.94 5.83 06:25 0.57 14:15 1.03 0.85 06:25 0.149 14:15 0.500 0.327 0.327 0.07
01/11/2021 03:45 4.47 10:55 8.25 6.47 04:40 0.60 12:40 1.14 0.90 04:40 0.157 10:55 0.676 0.414 0.414 1.06
01/12/2021 00:00 6.18 19:05 9.95 7.71 15:35 0.84 18:45 1.33 1.07 00:40 0.362 19:15 0.978 0.605 0.605 2.10
01/13/2021 04:55 4.70 00:35 9.42 6.13 06:15 0.61 00:40 1.27 0.88 06:15 0.177 00:40 0.929 0.369 0.369 0.09
01/14/2021 05:05 4.62 13:10 6.80 5.85 05:00 0.58 21:15 1.04 0.82 05:00 0.158 20:40 0.476 0.320 0.320 0.01
01/15/2021 04:35 4.77 15:50 6.90 5.72 04:15 0.60 15:45 1.07 0.82 04:15 0.174 15:50 0.512 0.306 0.306 0.09
01/16/2021 06:10 3.96 12:20 6.68 5.49 06:10 0.52 19:50 0.96 0.78 06:10 0.114 16:10 0.431 0.281 0.281 -
01/17/2021 07:10 4.02 12:25 6.50 5.49 06:40 0.53 21:20 0.99 0.80 06:15 0.120 12:25 0.413 0.285 0.285 0.10
01/18/2021 04:30 4.04 18:45 6.61 5.53 04:20 0.53 22:05 0.95 0.78 04:20 0.120 18:45 0.424 0.281 0.281 -
01/19/2021 05:05 3.89 17:45 6.42 5.42 04:00 0.52 19:00 0.96 0.77 05:05 0.112 19:50 0.397 0.273 0.273 0.01
01/20/2021 05:15 3.99 18:20 6.37 5.38 04:40 0.50 20:55 1.00 0.77 04:40 0.111 20:10 0.406 0.270 0.270 -
01/21/2021 03:30 3.99 18:40 6.42 5.45 03:35 0.54 16:15 0.97 0.79 03:35 0.120 18:45 0.413 0.278 0.278 0.11
01/22/2021 05:25 4.01 18:55 6.42 5.40 04:35 0.54 16:05 0.98 0.78 04:35 0.123 16:15 0.417 0.273 0.273 -
01/23/2021 05:15 4.13 14:40 6.80 5.54 05:25 0.53 20:10 0.95 0.75 05:25 0.123 14:40 0.429 0.274 0.274 -
01/24/2021 06:50 4.05 18:05 7.08 5.62 07:30 0.50 18:45 1.07 0.80 07:05 0.117 18:45 0.511 0.299 0.299 0.16
01/25/2021 04:25 4.40 13:20 6.39 5.62 03:15 0.56 20:50 0.98 0.80 05:10 0.148 21:35 0.415 0.294 0.294 0.04
01/26/2021 04:05 3.91 13:55 6.29 5.41 05:35 0.47 13:40 0.99 0.77 05:35 0.108 13:40 0.412 0.271 0.271 -
01/27/2021 04:35 3.93 18:55 6.61 5.46 04:35 0.52 18:40 0.99 0.79 04:35 0.111 18:40 0.435 0.279 0.279 0.14
01/28/2021 03:40 4.15 19:30 6.26 5.58 03:45 0.58 12:30 0.97 0.81 03:45 0.136 12:30 0.401 0.292 0.292 0.24
01/29/2021 05:40 3.96 18:40 6.50 5.43 05:25 0.53 18:40 1.00 0.78 05:50 0.116 18:40 0.441 0.276 0.276 0.03
01/30/2021 06:05 4.18 13:00 6.50 5.51 06:05 0.54 17:10 0.98 0.79 06:05 0.128 13:05 0.417 0.286 0.286 0.07
01/31/2021 06:30 4.29 12:15 6.57 5.61 06:25 0.58 14:30 1.00 0.81 06:25 0.144 14:30 0.433 0.296 0.296 0.12
02/01/2021 07:05 4.86 18:50 7.60 6.01 00:40 0.66 19:50 1.05 0.84 07:05 0.196 18:55 0.550 0.340 0.340 0.82
02/02/2021 05:10 4.06 00:00 7.28 5.75 05:00 0.47 13:15 1.03 0.81 05:00 0.108 00:00 0.518 0.310 0.310 0.31
02/03/2021 04:10 4.31 19:15 6.40 5.49 05:55 0.55 19:10 0.96 0.79 05:55 0.140 19:10 0.409 0.279 0.279 0.06
02/04/2021 05:15 3.96 15:40 6.35 5.35 05:15 0.47 15:45 0.97 0.77 05:15 0.102 15:45 0.411 0.267 0.267 0.07
02/05/2021 04:40 3.99 13:40 6.53 5.36 06:25 0.48 22:20 0.98 0.78 06:25 0.108 22:20 0.397 0.270 0.270 0.01
02/06/2021 05:55 3.90 14:50 6.57 5.42 06:05 0.54 14:35 0.97 0.79 05:55 0.118 14:40 0.431 0.279 0.279 0.01
02/07/2021 06:25 3.84 12:10 6.60 5.42 06:20 0.51 15:20 1.05 0.80 06:20 0.107 15:20 0.459 0.285 0.285 -
02/08/2021 04:40 3.87 19:05 6.25 5.35 04:20 0.54 22:00 0.97 0.77 04:35 0.114 19:05 0.386 0.266 0.266 -
02/09/2021 04:20 3.87 20:35 6.36 5.34 04:55 0.53 22:10 0.98 0.78 04:20 0.114 20:30 0.412 0.271 0.271 -
02/10/2021 04:00 4.00 18:45 6.34 5.38 04:50 0.57 18:10 0.97 0.79 04:00 0.127 18:10 0.407 0.276 0.276 -
02/11/2021 05:40 4.02 12:20 6.18 5.37 05:35 0.49 21:40 1.02 0.81 05:35 0.109 18:05 0.414 0.280 0.280 -
02/12/2021 05:40 3.85 13:05 6.53 5.30 06:15 0.50 12:50 1.05 0.79 06:15 0.105 13:00 0.459 0.272 0.272 -
02/13/2021 05:05 3.95 16:55 6.20 5.28 04:55 0.52 15:05 0.97 0.79 04:55 0.115 16:55 0.387 0.269 0.269 0.08
02/14/2021 05:45 3.92 15:15 6.56 5.47 06:10 0.50 14:10 0.97 0.79 06:10 0.109 14:20 0.426 0.283 0.283 0.71
02/15/2021 06:50 5.37 14:05 9.19 6.91 07:10 0.68 14:10 1.23 0.97 07:10 0.234 14:10 0.869 0.477 0.477 0.78
02/16/2021 05:55 4.95 19:25 6.62 5.74 09:15 0.69 19:30 0.97 0.83 06:35 0.220 19:25 0.433 0.309 0.309 0.07
02/17/2021 04:35 3.89 16:25 6.50 5.51 04:30 0.50 19:35 0.94 0.75 04:30 0.106 19:35 0.406 0.270 0.270 -
02/18/2021 03:40 4.11 19:05 6.46 5.51 05:55 0.53 13:30 0.96 0.77 03:35 0.125 13:40 0.414 0.278 0.278 0.09
02/19/2021 05:15 3.99 19:35 7.03 5.51 05:25 0.56 19:55 0.98 0.77 05:25 0.123 19:40 0.479 0.277 0.277 0.17
02/20/2021 05:05 4.11 13:25 6.84 5.56 05:25 0.56 13:20 0.94 0.77 06:40 0.129 13:20 0.439 0.282 0.282 0.07
02/21/2021 06:25 3.94 23:50 8.91 5.76 06:30 0.53 23:50 1.25 0.78 06:30 0.115 23:50 0.847 0.304 0.304 0.42
02/22/2021 05:20 4.93 13:10 9.64 6.61 06:00 0.67 12:55 1.17 0.89 05:35 0.211 13:10 0.888 0.413 0.413 0.98
02/23/2021 05:00 3.93 22:00 8.22 5.68 04:05 0.51 21:55 1.12 0.77 05:00 0.111 21:55 0.682 0.292 0.292 0.27
02/24/2021 05:10 4.00 17:05 6.46 5.54 04:25 0.51 23:50 0.97 0.74 04:25 0.113 17:05 0.403 0.268 0.268 -
02/25/2021 03:00 4.26 18:20 6.52 5.66 03:20 0.59 14:10 0.91 0.78 03:05 0.146 19:25 0.393 0.287 0.287 0.18
02/26/2021 04:00 4.01 18:30 6.57 5.58 04:30 0.50 17:20 0.93 0.77 04:30 0.112 19:55 0.406 0.281 0.281 0.10
02/27/2021 06:25 4.02 12:15 6.75 5.61 06:20 0.54 19:05 0.92 0.77 06:20 0.122 12:15 0.404 0.283 0.283 0.02
02/28/2021 06:40 3.99 14:35 6.82 5.60 07:15 0.49 14:45 0.93 0.75 04:30 0.113 14:45 0.434 0.278 0.278 0.02
03/01/2021 05:10 4.02 18:45 6.34 5.51 05:05 0.45 18:45 0.99 0.77 05:05 0.100 18:45 0.419 0.277 0.277 -
03/02/2021 05:05 3.96 13:35 6.37 5.41 04:55 0.50 20:40 0.99 0.77 05:05 0.111 18:15 0.401 0.271 0.271 -
03/03/2021 04:45 3.90 18:45 6.42 5.40 05:00 0.51 18:05 0.98 0.78 05:00 0.109 18:05 0.421 0.273 0.273 -
03/04/2021 05:20 3.95 19:55 7.23 5.47 05:40 0.49 19:45 1.07 0.77 05:40 0.108 19:55 0.538 0.277 0.277 0.20
03/05/2021 05:10 3.94 13:30 6.34 5.40 04:40 0.47 11:35 0.99 0.78 04:40 0.103 13:20 0.405 0.275 0.275 0.05
03/06/2021 05:10 3.97 12:45 6.51 5.46 04:15 0.46 17:15 1.00 0.78 06:40 0.104 10:55 0.422 0.279 0.279 -
03/07/2021 06:00 3.77 13:00 6.62 5.44 05:55 0.50 12:55 1.04 0.80 05:55 0.102 12:55 0.464 0.286 0.286 0.04
03/08/2021 04:30 3.97 20:15 6.47 5.45 05:00 0.53 19:35 1.01 0.80 05:00 0.118 20:10 0.429 0.283 0.283 -
03/09/2021 05:00 3.80 20:50 6.31 5.37 04:55 0.46 16:20 0.97 0.77 05:10 0.094 20:45 0.406 0.270 0.270 0.01
03/10/2021 05:00 3.97 19:00 6.47 5.47 04:55 0.48 21:45 1.01 0.78 04:55 0.105 19:00 0.418 0.277 0.277 -
03/11/2021 05:15 3.89 12:35 6.30 5.42 05:05 0.49 18:10 1.00 0.77 05:10 0.104 18:10 0.410 0.273 0.273 -
Page 535 of 1163
15
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:35 3.79 18:35 7.48 5.39 04:25 0.50 18:30 1.11 0.77 04:25 0.103 18:40 0.594 0.270 0.270 -
03/13/2021 05:40 3.95 13:50 6.76 5.45 05:00 0.52 13:50 1.00 0.78 05:00 0.114 13:50 0.464 0.277 0.277 -
03/14/2021 05:25 3.94 15:35 7.15 5.63 05:15 0.50 20:05 1.07 0.81 05:30 0.107 20:05 0.518 0.304 0.304 0.30
03/15/2021 04:10 4.04 11:40 6.25 5.40 03:45 0.51 20:55 1.00 0.78 04:05 0.116 20:55 0.410 0.272 0.272 -
03/16/2021 03:50 4.02 19:00 6.42 5.47 03:25 0.54 21:55 1.03 0.78 03:50 0.119 19:00 0.437 0.280 0.280 -
03/17/2021 03:10 3.98 11:35 6.25 5.42 03:10 0.47 21:35 0.98 0.78 03:10 0.103 21:35 0.385 0.275 0.275 -
03/18/2021 03:40 3.95 16:30 7.03 5.47 02:20 0.53 16:35 1.15 0.81 03:40 0.117 16:35 0.566 0.287 0.287 0.11
03/19/2021 03:30 3.94 13:00 6.31 5.35 04:40 0.53 21:20 1.01 0.79 04:40 0.119 13:00 0.408 0.274 0.274 0.03
03/20/2021 05:15 3.85 14:30 6.44 5.47 05:20 0.53 11:00 1.06 0.81 05:20 0.112 11:00 0.440 0.288 0.288 0.17
03/21/2021 05:25 3.90 11:15 6.73 5.42 02:00 0.51 13:55 1.02 0.79 05:05 0.115 11:20 0.448 0.283 0.283 0.07
03/22/2021 02:55 3.93 10:50 6.96 5.52 03:10 0.53 10:45 1.03 0.80 02:50 0.117 10:45 0.495 0.290 0.290 0.11
03/23/2021 05:00 3.94 11:15 6.33 5.42 05:55 0.53 15:50 1.02 0.79 04:55 0.119 15:50 0.428 0.280 0.280 -
03/24/2021 04:00 3.86 20:10 7.09 5.46 03:05 0.49 20:10 1.07 0.79 03:05 0.105 20:10 0.533 0.284 0.284 0.34
03/25/2021 03:10 4.61 18:20 6.55 5.74 02:50 0.63 18:30 0.99 0.82 02:50 0.175 18:30 0.438 0.309 0.309 0.27
03/26/2021 04:35 4.05 11:20 6.27 5.47 03:30 0.53 21:00 0.98 0.80 03:30 0.123 21:00 0.397 0.284 0.284 -
03/27/2021 05:10 3.95 14:15 6.38 5.47 05:50 0.52 12:35 1.01 0.76 05:15 0.116 12:35 0.429 0.271 0.271 -
03/28/2021 06:05 3.80 14:55 8.62 5.62 06:10 0.46 15:00 1.19 0.80 06:10 0.094 15:00 0.769 0.304 0.304 0.37
03/29/2021 04:10 3.85 20:40 6.46 5.44 04:10 0.47 20:45 1.04 0.78 04:10 0.098 20:45 0.452 0.276 0.276 -
03/30/2021 02:50 3.87 12:40 6.24 5.39 02:55 0.51 12:40 0.98 0.77 02:55 0.108 12:40 0.409 0.271 0.271 -
03/31/2021 04:00 4.04 21:10 6.27 5.48 03:35 0.55 19:40 0.94 0.78 03:45 0.123 18:05 0.382 0.276 0.276 -
04/01/2021 03:35 4.25 10:30 6.34 5.57 05:20 0.55 20:40 0.99 0.78 03:55 0.138 20:40 0.412 0.283 0.283 -
04/02/2021 03:30 3.93 15:50 6.24 5.44 03:20 0.54 16:35 0.98 0.78 03:25 0.117 16:35 0.407 0.278 0.278 -
04/03/2021 04:20 4.05 11:40 6.69 5.47 04:00 0.53 13:10 0.98 0.78 04:00 0.120 11:45 0.437 0.279 0.279 -
04/04/2021 05:05 3.64 11:30 6.62 5.37 04:55 0.44 16:20 0.95 0.76 04:55 0.085 11:25 0.422 0.266 0.266 -
04/05/2021 03:20 3.93 12:00 6.41 5.48 03:00 0.50 12:05 0.97 0.79 03:00 0.111 12:05 0.418 0.282 0.282 -
04/06/2021 03:40 4.03 12:35 6.56 5.51 04:20 0.55 21:15 0.98 0.78 04:25 0.126 12:20 0.422 0.280 0.280 -
04/07/2021 03:30 3.97 21:25 6.45 5.52 03:55 0.52 11:25 0.98 0.79 03:55 0.116 21:05 0.417 0.286 0.286 0.22
04/08/2021 03:20 4.14 12:50 6.26 5.51 02:40 0.51 21:15 0.96 0.80 02:40 0.120 16:55 0.389 0.285 0.285 -
04/09/2021 04:25 3.97 13:30 6.20 5.36 03:20 0.55 13:35 0.97 0.78 04:30 0.121 13:35 0.402 0.270 0.270 0.03
04/10/2021 06:10 3.98 12:00 6.62 5.47 06:00 0.55 11:20 0.97 0.80 06:05 0.121 11:25 0.425 0.287 0.287 0.02
04/11/2021 05:10 3.81 09:15 6.75 5.49 04:20 0.48 09:10 1.07 0.79 04:20 0.102 09:10 0.495 0.288 0.288 -
04/12/2021 03:45 3.92 11:35 6.45 5.47 03:55 0.52 20:10 0.96 0.77 03:55 0.112 20:15 0.410 0.273 0.273 -
04/13/2021 02:40 3.97 19:05 6.29 5.42 02:35 0.51 19:20 0.96 0.77 02:35 0.111 20:00 0.398 0.271 0.271 -
04/14/2021 03:40 3.88 18:50 6.39 5.46 03:05 0.53 20:40 0.96 0.78 03:10 0.114 18:45 0.406 0.278 0.277 -
09/24/2020 23:55 5.34 18:40 6.86 6.37 23:25 0.68 18:45 0.97 0.85 23:55 0.233 18:45 0.461 0.365 0.158 -
09/25/2020 03:45 4.57 12:25 7.63 6.04 04:55 0.53 12:10 1.06 0.82 03:50 0.148 12:10 0.565 0.334 0.334 -
09/26/2020 04:45 4.33 15:10 7.40 5.78 06:40 0.49 15:05 1.00 0.78 06:40 0.130 15:15 0.516 0.303 0.303 -
09/27/2020 05:05 4.36 11:30 6.86 5.65 04:55 0.48 14:55 0.98 0.79 04:55 0.121 11:45 0.449 0.297 0.297 -
09/28/2020 03:10 4.07 18:20 6.55 5.52 03:35 0.48 21:00 1.00 0.81 03:35 0.110 18:15 0.441 0.292 0.292 -
09/29/2020 03:10 3.95 17:25 6.35 5.47 03:50 0.45 21:10 1.00 0.80 03:50 0.101 21:10 0.410 0.288 0.288 -
09/30/2020 04:15 3.93 19:10 6.52 5.47 05:15 0.47 20:30 1.01 0.80 05:15 0.114 20:30 0.438 0.285 0.285 -
10/01/2020 04:20 3.92 19:20 6.47 5.50 04:00 0.50 11:10 1.05 0.83 04:00 0.109 19:15 0.433 0.299 0.299 -
10/02/2020 02:50 4.05 11:05 6.43 5.57 04:55 0.48 11:00 1.06 0.80 04:00 0.113 11:00 0.458 0.293 0.293 -
10/03/2020 04:30 4.13 11:35 6.57 5.58 05:25 0.50 12:35 1.03 0.84 05:25 0.121 12:35 0.454 0.310 0.310 0.01
10/04/2020 04:45 4.23 11:25 6.52 5.53 07:20 0.56 12:10 1.02 0.82 06:25 0.140 12:10 0.441 0.297 0.297 0.01
10/05/2020 04:15 4.09 12:25 6.36 5.49 04:05 0.58 21:20 1.02 0.82 04:15 0.132 18:30 0.423 0.294 0.294 -
10/06/2020 04:00 3.86 17:45 6.40 5.47 04:00 0.49 11:05 1.01 0.81 04:00 0.103 20:25 0.426 0.290 0.290 -
10/07/2020 03:20 4.11 18:45 6.45 5.51 04:45 0.54 19:35 1.01 0.81 04:45 0.128 19:35 0.431 0.292 0.292 -
10/08/2020 03:30 4.17 18:35 6.46 5.58 03:20 0.54 18:30 1.02 0.83 03:35 0.127 18:30 0.443 0.306 0.306 -
10/09/2020 03:20 4.22 23:55 10.07 5.76 04:45 0.55 23:55 1.40 0.84 02:35 0.136 23:55 1.125 0.329 0.329 0.64
10/10/2020 05:30 5.24 01:40 11.29 6.46 23:30 0.76 01:30 1.42 0.95 23:30 0.253 01:30 1.291 0.428 0.428 1.04
10/11/2020 05:45 3.98 18:15 7.57 5.74 07:15 0.50 18:10 1.10 0.83 05:40 0.113 18:10 0.596 0.325 0.325 0.53
10/12/2020 02:45 4.29 19:50 6.58 5.58 03:00 0.59 19:40 1.05 0.84 03:00 0.144 19:50 0.466 0.306 0.306 -
10/13/2020 01:30 4.60 07:35 8.80 5.98 00:50 0.68 07:25 1.30 0.89 01:35 0.189 07:25 0.854 0.359 0.359 0.61
10/14/2020 02:35 4.17 20:05 6.42 5.49 04:35 0.50 17:40 1.01 0.80 04:35 0.121 17:40 0.426 0.285 0.285 -
10/15/2020 04:05 3.98 12:15 6.48 5.46 05:25 0.49 20:00 1.02 0.80 04:00 0.113 18:05 0.429 0.287 0.287 -
10/16/2020 03:40 3.96 12:55 6.21 5.40 03:40 0.52 13:05 1.00 0.82 03:40 0.113 13:05 0.408 0.289 0.289 -
10/17/2020 05:25 4.08 12:00 6.41 5.44 03:40 0.58 20:40 1.03 0.83 03:40 0.134 12:05 0.431 0.294 0.294 0.01
10/18/2020 04:35 3.86 13:10 6.60 5.44 05:55 0.47 12:50 1.02 0.82 05:15 0.105 12:50 0.451 0.295 0.295 0.03
10/19/2020 04:20 4.06 19:00 6.46 5.51 05:40 0.56 19:00 0.99 0.81 04:20 0.129 19:00 0.432 0.292 0.292 0.05
10/20/2020 04:05 4.16 19:30 6.44 5.54 04:15 0.54 13:15 1.07 0.81 04:20 0.126 13:15 0.443 0.296 0.296 -
10/21/2020 03:15 4.01 19:35 6.43 5.47 04:25 0.51 18:00 1.05 0.82 04:10 0.117 18:00 0.450 0.294 0.294 0.01
10/22/2020 04:20 4.07 12:05 6.28 5.49 04:25 0.48 18:00 1.05 0.82 04:25 0.109 18:00 0.436 0.295 0.295 -
10/23/2020 03:00 4.03 19:30 6.69 5.50 03:10 0.51 19:30 1.08 0.82 03:10 0.113 19:30 0.493 0.297 0.297 0.20
10/24/2020 05:35 3.86 11:10 6.61 5.49 05:25 0.53 20:40 1.04 0.81 05:35 0.112 11:05 0.453 0.293 0.293 0.02
10/25/2020 04:50 3.94 11:40 6.47 5.46 04:20 0.54 20:10 1.01 0.81 04:25 0.118 12:10 0.433 0.291 0.291 -
10/26/2020 03:10 3.91 19:30 6.51 5.41 04:15 0.54 11:15 1.01 0.81 03:15 0.119 19:30 0.446 0.285 0.285 -
10/27/2020 02:45 4.18 18:50 6.56 5.52 03:30 0.53 16:55 1.02 0.81 03:55 0.126 18:20 0.445 0.293 0.293 -
10/28/2020 03:30 3.96 19:05 6.34 5.42 04:50 0.53 21:45 1.02 0.80 03:35 0.118 19:10 0.408 0.280 0.280 -
10/29/2020 03:25 4.03 13:40 7.39 6.04 03:30 0.53 15:05 1.15 0.89 03:30 0.118 10:45 0.589 0.377 0.377 -
10/30/2020 03:35 4.09 17:10 7.07 5.75 03:25 0.51 17:50 1.10 0.84 03:35 0.116 17:50 0.545 0.325 0.325 0.10
10/31/2020 04:40 3.87 11:15 6.71 5.39 04:50 0.47 10:55 1.02 0.78 04:50 0.100 13:45 0.465 0.276 0.276 -
11/01/2020 05:30 3.93 12:55 6.57 5.40 06:50 0.52 15:30 0.98 0.77 05:35 0.114 15:30 0.420 0.273 0.273 -
11/02/2020 03:35 4.03 19:00 6.31 5.41 04:05 0.52 19:00 0.99 0.79 03:45 0.117 19:00 0.420 0.277 0.277 -
Page 536 of 1163
16
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/03/2020 05:30 4.19 10:20 8.75 5.92 05:25 0.53 10:20 1.19 0.83 05:25 0.126 10:20 0.792 0.339 0.339 0.83
11/04/2020 04:10 4.11 20:10 6.29 5.46 03:35 0.58 20:05 1.02 0.80 03:35 0.135 20:05 0.428 0.283 0.283 0.09
11/05/2020 05:10 4.13 13:00 6.67 5.68 04:55 0.53 12:55 1.03 0.82 04:55 0.124 12:55 0.467 0.307 0.307 0.34
11/06/2020 05:30 4.31 20:10 6.37 5.56 05:30 0.60 19:55 1.01 0.82 05:30 0.149 20:10 0.430 0.294 0.294 0.10
11/07/2020 05:25 4.19 16:15 6.51 5.49 04:55 0.44 12:45 1.00 0.77 04:55 0.107 12:45 0.432 0.278 0.278 0.07
11/08/2020 06:25 4.11 13:10 6.76 5.57 06:20 0.41 13:05 1.07 0.79 06:20 0.095 13:05 0.497 0.293 0.293 0.01
11/09/2020 04:25 3.96 19:40 6.38 5.41 04:05 0.47 21:05 0.99 0.77 04:05 0.105 21:25 0.422 0.274 0.274 0.04
11/10/2020 04:25 4.11 17:55 6.56 5.46 04:30 0.49 17:55 1.04 0.79 04:30 0.114 17:55 0.463 0.282 0.282 0.03
11/11/2020 05:30 4.00 15:00 6.33 5.41 05:00 0.48 20:00 1.00 0.78 05:15 0.109 20:00 0.409 0.276 0.276 -
11/12/2020 05:05 4.05 20:45 6.64 5.51 05:00 0.46 11:15 1.04 0.80 05:00 0.105 19:55 0.445 0.290 0.290 0.16
11/13/2020 02:05 4.94 06:45 6.85 5.76 02:40 0.66 06:50 1.07 0.83 02:40 0.198 06:50 0.506 0.311 0.311 0.38
11/14/2020 05:55 4.01 18:25 7.82 5.68 08:00 0.52 18:55 1.06 0.76 06:10 0.120 18:30 0.559 0.292 0.292 0.47
11/15/2020 07:05 4.37 13:35 6.60 5.66 07:30 0.43 23:10 1.02 0.76 07:30 0.110 19:45 0.437 0.287 0.287 0.19
11/16/2020 04:25 4.33 13:45 7.46 5.71 05:05 0.51 13:45 1.09 0.78 05:05 0.128 13:45 0.581 0.296 0.296 0.31
11/17/2020 04:55 4.10 19:50 7.31 5.56 04:35 0.48 19:45 1.09 0.76 04:35 0.110 19:45 0.564 0.281 0.281 0.20
11/18/2020 04:30 3.95 18:00 6.90 5.60 05:15 0.45 17:45 1.01 0.76 04:35 0.100 17:45 0.464 0.281 0.281 0.30
11/19/2020 03:05 4.45 13:00 8.23 5.80 07:40 0.52 12:55 1.14 0.80 03:10 0.147 12:55 0.696 0.308 0.308 0.50
11/20/2020 04:35 4.21 12:25 6.22 5.45 04:50 0.45 22:30 0.96 0.73 04:50 0.108 22:30 0.384 0.261 0.261 0.01
11/21/2020 05:55 4.27 13:30 6.80 5.65 05:55 0.45 14:30 0.88 0.70 05:55 0.108 13:35 0.395 0.262 0.262 -
11/22/2020 06:30 4.47 17:55 7.14 5.94 06:25 0.34 19:25 0.86 0.64 06:25 0.090 19:25 0.403 0.261 0.261 0.21
11/23/2020 04:15 4.47 13:25 6.72 5.95 04:00 0.36 12:50 0.91 0.69 04:00 0.094 12:50 0.415 0.275 0.275 0.14
11/24/2020 05:00 4.83 16:15 7.34 5.72 05:15 0.33 16:05 1.10 0.74 05:10 0.097 16:05 0.564 0.281 0.281 0.21
11/25/2020 04:15 4.32 22:10 6.54 5.57 04:50 0.48 22:10 1.09 0.81 04:50 0.120 22:10 0.483 0.294 0.294 0.05
11/26/2020 06:25 4.07 13:05 6.92 5.58 06:50 0.52 14:05 1.10 0.84 06:55 0.119 14:10 0.523 0.309 0.309 0.02
11/27/2020 04:25 3.82 13:55 6.38 5.37 06:05 0.45 16:35 1.01 0.78 04:25 0.095 13:55 0.419 0.271 0.271 -
11/28/2020 06:15 4.00 13:30 6.50 5.46 05:35 0.48 18:35 0.96 0.77 06:05 0.110 13:25 0.404 0.273 0.273 0.05
11/29/2020 06:20 4.04 13:35 6.75 5.50 04:35 0.49 17:55 1.01 0.78 04:35 0.113 13:35 0.435 0.283 0.283 -
11/30/2020 03:40 4.34 04:50 6.69 5.79 03:55 0.54 04:30 1.02 0.80 03:55 0.145 04:50 0.450 0.305 0.305 0.36
12/01/2020 04:25 4.23 19:10 6.37 5.53 04:10 0.48 18:15 0.97 0.76 06:15 0.119 18:15 0.410 0.273 0.273 -
12/02/2020 04:30 4.09 19:30 6.47 5.60 04:25 0.49 19:10 1.02 0.80 04:25 0.115 19:10 0.438 0.295 0.295 0.01
12/03/2020 04:55 4.16 13:20 6.39 5.52 05:40 0.52 18:40 1.04 0.83 05:20 0.125 18:40 0.436 0.297 0.297 -
12/04/2020 04:35 4.04 13:00 6.44 5.54 05:00 0.49 14:15 1.02 0.82 05:00 0.109 14:15 0.441 0.297 0.297 -
12/05/2020 06:20 4.15 15:35 6.67 5.57 06:20 0.54 12:35 1.07 0.82 06:20 0.126 12:35 0.484 0.301 0.301 0.03
12/06/2020 05:45 4.19 17:45 6.72 5.71 05:45 0.53 21:05 1.04 0.85 05:45 0.125 17:45 0.457 0.319 0.319 0.03
12/07/2020 05:10 4.26 18:30 6.52 5.63 04:10 0.50 11:35 1.04 0.83 04:40 0.131 19:40 0.443 0.306 0.306 -
12/08/2020 04:55 4.32 21:35 7.68 6.14 05:15 0.58 21:30 1.20 0.88 05:15 0.150 21:30 0.659 0.370 0.370 0.87
12/09/2020 05:50 4.63 19:10 6.38 5.68 04:55 0.60 16:00 1.00 0.86 04:55 0.171 18:30 0.421 0.315 0.315 0.17
12/10/2020 05:35 4.00 20:45 6.55 5.41 05:35 0.56 20:40 1.04 0.82 05:35 0.124 20:45 0.465 0.286 0.286 0.07
12/11/2020 04:30 3.99 12:45 6.44 5.38 04:50 0.54 12:45 0.99 0.80 05:05 0.120 12:45 0.430 0.278 0.278 0.02
12/12/2020 05:50 3.99 12:35 6.60 5.41 05:00 0.50 13:25 1.04 0.80 05:00 0.112 13:25 0.459 0.282 0.282 0.01
12/13/2020 06:50 3.96 11:50 6.92 5.54 06:25 0.46 11:45 1.03 0.81 06:50 0.106 11:50 0.494 0.294 0.294 0.24
12/14/2020 03:30 4.14 19:30 6.40 5.45 03:30 0.57 20:25 1.02 0.81 03:30 0.133 17:50 0.434 0.286 0.286 0.05
12/15/2020 04:35 3.84 16:10 8.83 5.79 04:30 0.43 16:00 1.34 0.84 04:30 0.090 16:05 0.876 0.330 0.330 0.58
12/16/2020 05:20 4.20 14:50 7.62 5.70 05:15 0.49 14:55 1.10 0.83 05:15 0.116 14:55 0.601 0.316 0.316 0.39
12/17/2020 04:10 4.14 13:00 6.26 5.39 05:10 0.53 19:10 1.01 0.81 05:10 0.123 19:10 0.420 0.279 0.279 0.08
12/18/2020 04:25 4.09 19:25 6.46 5.45 04:25 0.56 19:10 1.01 0.80 04:25 0.128 19:10 0.435 0.281 0.281 0.25
12/19/2020 06:10 3.96 21:25 7.11 5.64 07:20 0.51 21:45 1.09 0.81 06:10 0.112 21:45 0.538 0.309 0.309 0.37
12/20/2020 06:50 3.97 13:25 6.37 5.36 07:20 0.50 13:25 1.01 0.79 07:10 0.114 13:25 0.433 0.275 0.275 0.04
12/21/2020 04:55 4.97 16:40 9.65 6.44 04:50 0.66 16:45 1.37 0.93 04:50 0.203 16:45 1.029 0.427 0.427 1.07
12/22/2020 05:10 4.20 18:55 6.20 5.47 05:20 0.49 19:00 0.97 0.79 05:20 0.116 19:00 0.399 0.282 0.282 -
12/23/2020 05:10 4.22 14:20 6.32 5.41 03:15 0.56 18:30 0.99 0.79 05:45 0.135 18:30 0.414 0.275 0.275 -
12/24/2020 05:50 3.99 14:05 6.49 5.45 05:45 0.56 19:00 1.01 0.81 05:45 0.124 15:55 0.421 0.289 0.289 -
12/25/2020 06:10 3.96 16:50 6.90 5.36 07:15 0.52 16:55 1.13 0.80 07:15 0.114 16:55 0.537 0.279 0.279 0.49
12/26/2020 06:00 4.10 12:55 6.54 5.41 05:35 0.57 12:15 1.04 0.81 05:35 0.132 12:30 0.450 0.284 0.284 0.02
12/27/2020 05:35 4.01 09:35 6.62 5.51 05:35 0.53 15:45 1.07 0.81 05:35 0.118 15:45 0.480 0.293 0.293 0.13
12/28/2020 05:10 4.15 14:35 6.51 5.48 06:40 0.56 22:00 1.01 0.82 05:10 0.144 14:40 0.443 0.290 0.290 -
12/29/2020 04:15 4.14 19:50 7.07 5.46 04:15 0.57 19:55 1.10 0.81 04:20 0.132 19:55 0.541 0.287 0.287 0.14
12/30/2020 01:35 5.00 06:35 6.99 6.06 01:40 0.63 06:30 1.05 0.88 01:40 0.193 06:30 0.510 0.354 0.354 0.78
12/31/2020 06:50 4.45 00:05 6.59 5.64 06:25 0.59 00:05 1.06 0.83 06:25 0.154 00:05 0.475 0.305 0.305 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 60.203 30.65
Average 5.60 0.80 0.297
Page 537 of 1163
17
Page 538 of 1163
18
AUB_A11_710142
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.41 0.84 0.071
Minimum 1.30 0.37 0.012
Maximum 4.84 1.55 0.330
Min Time 10/23/2020 4:00:00 AM 10/27/2020 4:00:00 AM 10/27/2020 4:00:00 AM
Max Time 01/03/2021 1:00:00 AM 01/03/2021 1:00:00 AM 01/03/2021 1:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.217
VFINAL (ft/s) 99.217
QFINAL (MGD - Total MG) 99.217
Pipe Round (14.13 in H)
Silt 0.00 (in)
Page 539 of 1163
4455 S. 134th Place
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Hydrograph Report
AUB_A11_710142
Page 540 of 1163
4455 S. 134th Place
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Scattergraph Report
AUB_A11_710142
Page 541 of 1163
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A11_710142Pipe: Round (14.13 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 04:15 2.04 16:15 3.18 2.66 04:15 0.69 16:15 1.14 0.95 04:15 0.043 16:15 0.135 0.090 0.090 0.51
01/02/2021 05:35 2.09 22:05 4.66 3.06 05:35 0.71 22:10 1.52 1.06 05:35 0.046 22:10 0.308 0.130 0.130 1.69
01/03/2021 23:05 3.12 01:05 4.87 3.71 23:05 1.08 01:10 1.56 1.26 23:05 0.125 01:20 0.336 0.190 0.190 0.65
01/04/2021 04:15 2.83 12:35 3.62 3.23 04:15 0.98 12:35 1.26 1.13 04:15 0.099 12:35 0.179 0.137 0.137 0.48
01/05/2021 03:15 2.45 21:40 3.55 2.99 03:10 0.83 21:35 1.23 1.04 03:10 0.068 21:35 0.170 0.114 0.114 0.52
01/06/2021 23:30 2.68 10:35 3.36 3.12 23:30 0.93 10:40 1.17 1.09 23:30 0.087 10:40 0.150 0.126 0.126 0.22
01/07/2021 05:20 2.20 21:00 3.09 2.71 04:10 0.74 20:55 1.10 0.94 05:20 0.052 20:55 0.124 0.090 0.090 -
01/08/2021 03:35 2.07 13:50 2.99 2.62 03:40 0.69 12:55 1.08 0.91 03:40 0.044 18:10 0.116 0.084 0.084 0.22
01/09/2021 05:15 1.93 12:55 3.25 2.51 07:20 0.63 12:45 1.14 0.87 07:20 0.036 12:50 0.139 0.076 0.076 -
01/10/2021 05:20 1.77 13:45 2.99 2.45 03:30 0.53 13:15 1.08 0.85 03:30 0.028 13:45 0.117 0.073 0.073 0.07
01/11/2021 04:20 1.74 22:05 3.72 2.78 04:05 0.57 21:55 1.26 0.96 04:05 0.029 22:00 0.186 0.103 0.103 1.06
01/12/2021 00:25 3.14 19:40 4.69 4.14 00:15 1.06 19:30 1.52 1.37 01:35 0.124 19:30 0.310 0.238 0.238 2.10
01/13/2021 23:55 2.95 01:10 4.36 3.46 23:50 1.02 01:10 1.44 1.19 23:50 0.109 01:10 0.266 0.160 0.160 0.09
01/14/2021 04:10 2.47 20:50 3.27 2.88 04:15 0.84 16:05 1.13 1.00 04:05 0.070 20:50 0.138 0.104 0.104 0.01
01/15/2021 04:40 2.16 12:55 3.09 2.69 04:35 0.71 10:50 1.09 0.93 04:35 0.048 12:50 0.123 0.088 0.088 0.09
01/16/2021 04:15 2.04 12:30 3.26 2.68 05:00 0.68 12:30 1.14 0.93 04:20 0.043 12:30 0.140 0.088 0.088 -
01/17/2021 04:35 1.99 11:45 3.10 2.61 04:35 0.64 14:25 1.10 0.90 04:35 0.039 11:40 0.124 0.083 0.083 0.10
01/18/2021 04:45 1.86 19:55 2.99 2.55 04:40 0.62 19:55 1.07 0.88 04:45 0.034 19:55 0.116 0.078 0.078 -
01/19/2021 04:15 1.63 21:20 3.16 2.50 04:10 0.48 21:30 1.10 0.86 04:10 0.022 21:25 0.129 0.076 0.076 0.01
01/20/2021 05:05 1.75 18:45 3.03 2.54 05:00 0.57 18:45 1.07 0.88 05:05 0.028 18:45 0.118 0.078 0.078 -
01/21/2021 03:35 1.83 18:45 2.97 2.50 03:25 0.60 18:45 1.06 0.87 03:35 0.032 18:50 0.114 0.075 0.075 0.11
01/22/2021 04:00 1.80 12:45 2.89 2.46 06:10 0.59 19:50 1.05 0.85 04:00 0.031 19:55 0.109 0.072 0.072 -
01/23/2021 04:30 1.70 12:25 3.10 2.45 04:30 0.54 12:20 1.10 0.85 04:30 0.026 12:20 0.126 0.072 0.072 -
01/24/2021 02:50 1.75 12:20 3.13 2.52 02:30 0.57 12:10 1.17 0.87 02:45 0.029 12:15 0.135 0.077 0.077 0.16
01/25/2021 04:55 1.70 14:10 2.93 2.47 04:50 0.57 14:10 1.06 0.85 04:55 0.027 14:10 0.111 0.073 0.073 0.04
01/26/2021 05:35 1.71 14:40 2.84 2.43 05:35 0.55 14:45 1.02 0.85 05:30 0.027 14:45 0.103 0.071 0.071 -
01/27/2021 02:50 1.79 13:10 2.91 2.45 02:55 0.57 10:15 1.03 0.85 02:55 0.030 13:05 0.107 0.072 0.072 0.14
01/28/2021 02:30 1.79 20:25 2.97 2.52 02:30 0.59 20:35 1.07 0.88 02:30 0.031 20:35 0.115 0.077 0.077 0.24
01/29/2021 05:20 1.75 11:45 2.90 2.43 05:10 0.57 11:45 1.03 0.84 05:10 0.029 11:50 0.107 0.070 0.070 0.03
01/30/2021 06:55 1.72 13:30 2.91 2.35 06:30 0.57 13:25 1.05 0.82 06:40 0.028 13:25 0.109 0.065 0.065 0.07
01/31/2021 06:20 1.66 12:55 3.19 2.40 07:00 0.54 12:45 1.15 0.84 06:20 0.025 12:55 0.137 0.070 0.070 0.12
02/01/2021 03:50 1.88 21:05 3.42 2.65 04:00 0.61 19:05 1.19 0.93 04:00 0.034 21:05 0.157 0.089 0.089 0.82
02/02/2021 05:45 2.49 09:00 3.30 2.98 03:15 0.82 13:45 1.17 1.04 03:15 0.070 08:55 0.145 0.114 0.114 0.31
02/03/2021 05:05 2.32 19:15 3.23 2.77 05:10 0.79 19:10 1.13 0.96 05:00 0.060 19:15 0.137 0.095 0.095 0.06
02/04/2021 02:45 2.04 14:50 2.99 2.58 02:45 0.67 14:50 1.07 0.90 02:45 0.042 14:50 0.116 0.081 0.081 0.07
02/05/2021 05:20 1.93 12:25 2.85 2.49 05:15 0.65 12:25 1.02 0.87 05:55 0.037 12:25 0.103 0.074 0.074 0.01
02/06/2021 03:35 1.79 15:20 3.04 2.45 07:10 0.59 15:20 1.11 0.86 03:40 0.031 15:20 0.124 0.072 0.072 0.01
02/07/2021 05:30 1.82 12:00 2.98 2.44 05:00 0.60 12:00 1.07 0.85 05:30 0.032 12:00 0.116 0.072 0.072 -
02/08/2021 05:25 1.65 17:30 2.78 2.35 05:30 0.54 17:20 1.00 0.82 05:25 0.025 17:20 0.097 0.065 0.065 -
02/09/2021 03:15 1.60 11:55 2.80 2.31 03:30 0.50 11:55 1.03 0.80 03:30 0.022 11:55 0.101 0.063 0.063 -
02/10/2021 04:40 1.53 12:00 2.76 2.27 04:20 0.50 12:05 1.01 0.79 04:25 0.021 11:55 0.097 0.060 0.060 -
02/11/2021 03:05 1.55 19:45 2.76 2.30 03:00 0.49 19:40 0.99 0.80 03:00 0.021 19:50 0.096 0.062 0.062 -
02/12/2021 03:50 1.50 16:00 2.75 2.27 03:50 0.48 15:55 1.00 0.78 03:50 0.019 16:00 0.096 0.060 0.060 -
02/13/2021 05:55 1.53 21:30 2.81 2.27 03:35 0.49 21:35 1.00 0.77 03:35 0.021 21:35 0.100 0.059 0.059 0.08
02/14/2021 05:30 1.57 13:15 2.83 2.31 04:25 0.51 13:20 1.02 0.80 05:25 0.022 13:15 0.102 0.063 0.063 0.71
02/15/2021 00:30 2.28 15:30 3.87 3.18 00:30 0.77 15:25 1.34 1.10 00:35 0.056 15:25 0.209 0.136 0.136 0.78
02/16/2021 05:05 2.89 14:15 4.24 3.13 03:10 1.01 14:10 1.40 1.09 03:25 0.105 14:15 0.249 0.128 0.128 0.07
02/17/2021 04:15 2.31 20:35 3.13 2.79 04:20 0.75 20:30 1.10 0.97 04:20 0.057 20:30 0.127 0.096 0.096 -
02/18/2021 05:20 2.03 18:35 3.07 2.65 04:50 0.69 18:35 1.08 0.92 05:00 0.043 18:35 0.121 0.086 0.086 0.09
02/19/2021 02:20 2.19 15:10 3.13 2.65 02:20 0.74 10:35 1.09 0.92 02:30 0.051 15:05 0.126 0.085 0.085 0.17
02/20/2021 05:50 1.89 14:15 3.09 2.55 05:15 0.59 14:20 1.10 0.88 05:15 0.035 14:15 0.125 0.078 0.078 0.07
02/21/2021 05:10 1.86 12:20 3.00 2.51 04:45 0.62 23:55 1.07 0.88 04:55 0.034 12:25 0.116 0.077 0.077 0.42
02/22/2021 05:35 2.66 14:15 4.18 3.36 05:35 0.94 14:20 1.40 1.16 05:35 0.086 14:20 0.244 0.152 0.152 0.98
02/23/2021 04:25 2.61 21:50 3.49 3.06 04:20 0.88 21:50 1.19 1.06 04:25 0.078 21:55 0.162 0.120 0.120 0.27
02/24/2021 04:15 2.39 19:10 3.27 2.91 04:10 0.78 19:05 1.16 1.01 04:10 0.062 19:05 0.142 0.106 0.106 -
02/25/2021 02:50 2.28 19:35 3.18 2.85 02:50 0.73 19:25 1.13 0.99 02:50 0.054 19:25 0.133 0.101 0.101 0.18
02/26/2021 02:05 2.35 19:25 3.11 2.75 02:05 0.78 16:25 1.09 0.96 02:05 0.060 16:30 0.124 0.094 0.094 0.10
02/27/2021 06:20 2.08 13:50 3.11 2.66 06:20 0.69 13:45 1.09 0.93 06:20 0.044 13:50 0.125 0.086 0.086 0.02
02/28/2021 04:55 2.00 13:10 3.12 2.62 02:50 0.65 12:30 1.11 0.91 02:50 0.040 13:10 0.127 0.084 0.084 0.02
03/01/2021 04:40 1.85 18:30 2.96 2.54 04:35 0.61 19:45 1.07 0.89 04:40 0.033 12:40 0.113 0.079 0.079 -
03/02/2021 02:35 1.84 20:35 2.91 2.49 02:35 0.60 20:35 1.06 0.87 02:35 0.032 20:45 0.111 0.075 0.075 -
03/03/2021 04:45 1.74 19:30 2.94 2.50 04:55 0.58 19:20 1.09 0.88 04:45 0.029 19:20 0.115 0.076 0.076 -
03/04/2021 05:45 1.82 19:15 3.01 2.46 05:40 0.60 19:10 1.10 0.86 05:40 0.032 19:15 0.121 0.073 0.073 0.20
03/05/2021 03:45 1.74 19:45 2.89 2.45 05:10 0.56 19:45 1.04 0.85 03:45 0.028 19:45 0.107 0.072 0.072 0.05
03/06/2021 06:15 1.66 12:10 3.00 2.40 06:15 0.53 12:05 1.08 0.84 06:10 0.025 12:10 0.118 0.069 0.069 -
03/07/2021 06:00 1.53 11:30 2.82 2.38 06:20 0.49 12:45 1.03 0.83 06:00 0.020 12:35 0.102 0.068 0.068 0.04
03/08/2021 05:55 1.65 12:00 2.85 2.35 05:55 0.53 12:00 1.03 0.82 05:50 0.025 12:05 0.105 0.066 0.066 -
03/09/2021 05:35 1.68 20:35 2.86 2.34 04:05 0.50 20:35 1.04 0.80 05:35 0.024 20:35 0.106 0.064 0.064 0.01
03/10/2021 03:30 1.66 20:35 2.72 2.34 02:50 0.50 19:00 0.98 0.81 03:00 0.023 20:35 0.093 0.063 0.063 -
03/11/2021 04:40 1.50 19:40 2.80 2.30 04:40 0.48 19:30 1.01 0.80 04:40 0.019 19:35 0.100 0.062 0.062 -
Page 542 of 1163
22
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 05:00 1.61 09:50 2.73 2.28 05:00 0.53 09:45 0.98 0.79 04:50 0.024 09:50 0.094 0.060 0.060 -
03/13/2021 04:25 1.54 15:00 3.00 2.29 04:20 0.50 15:00 1.08 0.79 04:15 0.021 15:00 0.118 0.061 0.061 -
03/14/2021 05:55 1.69 20:15 2.88 2.39 05:25 0.51 20:10 1.03 0.81 05:30 0.024 20:20 0.107 0.067 0.067 0.30
03/15/2021 04:25 1.55 19:30 2.78 2.31 04:15 0.48 19:20 1.01 0.80 04:25 0.020 19:30 0.099 0.063 0.063 -
03/16/2021 03:35 1.56 19:45 3.02 2.29 03:40 0.50 19:50 1.10 0.81 03:40 0.021 19:50 0.122 0.063 0.063 -
03/17/2021 03:15 1.49 11:55 2.76 2.26 03:25 0.49 12:00 1.02 0.79 03:00 0.020 12:00 0.099 0.060 0.060 -
03/18/2021 02:45 1.48 17:00 2.73 2.26 02:30 0.49 17:05 1.00 0.79 02:40 0.019 17:00 0.095 0.060 0.060 0.11
03/19/2021 03:45 1.43 11:45 2.66 2.22 03:45 0.46 11:35 0.96 0.78 03:45 0.017 11:40 0.088 0.057 0.057 0.03
03/20/2021 03:40 1.43 10:20 2.75 2.27 03:05 0.45 10:20 1.00 0.80 03:25 0.017 10:20 0.096 0.061 0.061 0.17
03/21/2021 04:20 1.37 13:10 2.86 2.23 04:15 0.43 13:10 1.03 0.78 04:00 0.015 13:10 0.105 0.060 0.060 0.07
03/22/2021 03:45 1.54 11:10 2.86 2.35 03:40 0.51 11:10 1.04 0.83 03:40 0.021 11:10 0.106 0.066 0.066 0.11
03/23/2021 03:05 1.50 19:10 2.81 2.28 03:05 0.48 19:10 1.01 0.80 03:05 0.019 19:10 0.100 0.061 0.061 -
03/24/2021 02:35 1.48 19:55 2.89 2.28 02:00 0.48 20:00 1.05 0.80 02:25 0.019 20:00 0.109 0.062 0.062 0.34
03/25/2021 03:10 2.00 20:15 2.97 2.56 03:15 0.69 13:35 1.06 0.90 03:15 0.042 20:20 0.114 0.080 0.080 0.27
03/26/2021 03:10 1.70 11:25 2.76 2.36 02:05 0.56 11:20 0.99 0.83 02:05 0.028 11:25 0.096 0.066 0.066 -
03/27/2021 05:15 1.62 13:25 2.83 2.29 05:05 0.52 13:20 1.03 0.80 05:10 0.023 13:25 0.103 0.062 0.062 -
03/28/2021 04:05 1.49 15:40 3.19 2.39 04:45 0.46 15:35 1.15 0.83 03:20 0.019 15:40 0.137 0.070 0.070 0.37
03/29/2021 04:00 1.70 20:00 2.82 2.35 02:00 0.55 20:00 1.00 0.81 02:15 0.027 19:55 0.099 0.065 0.065 -
03/30/2021 03:55 1.60 20:35 2.80 2.30 03:55 0.52 20:30 1.02 0.80 03:55 0.023 20:35 0.101 0.062 0.062 -
03/31/2021 02:55 1.57 19:00 2.82 2.32 04:25 0.53 18:55 0.98 0.79 02:55 0.023 19:00 0.098 0.062 0.062 -
04/01/2021 03:45 1.52 18:55 2.73 2.26 03:35 0.49 19:00 0.98 0.78 03:35 0.020 18:55 0.093 0.059 0.059 -
04/02/2021 04:05 1.42 18:50 2.62 2.21 04:25 0.44 18:50 0.94 0.77 04:05 0.017 18:50 0.084 0.057 0.057 -
04/03/2021 03:20 1.33 11:55 2.93 2.25 03:15 0.39 12:00 1.06 0.78 03:15 0.013 12:00 0.113 0.060 0.060 -
04/04/2021 04:50 1.51 10:25 2.79 2.25 04:55 0.47 13:10 1.00 0.79 04:50 0.019 10:20 0.096 0.060 0.060 -
04/05/2021 03:35 1.48 20:40 2.79 2.23 03:45 0.47 20:35 1.01 0.78 03:35 0.019 20:35 0.099 0.059 0.059 -
04/06/2021 03:35 1.48 19:55 2.83 2.21 03:45 0.45 20:00 1.02 0.77 02:05 0.019 20:00 0.102 0.057 0.057 -
04/07/2021 02:55 1.46 18:10 2.94 2.30 02:20 0.49 18:05 0.92 0.75 02:55 0.019 18:05 0.097 0.058 0.058 0.22
04/08/2021 04:40 1.57 20:55 2.79 2.34 02:45 0.39 15:00 1.02 0.79 02:15 0.021 15:00 0.099 0.063 0.063 -
04/09/2021 03:50 1.45 20:15 2.81 2.32 03:40 0.45 20:20 1.01 0.81 03:50 0.017 20:15 0.100 0.064 0.064 0.03
04/10/2021 03:40 1.63 12:00 2.79 2.36 03:40 0.54 11:55 1.00 0.83 03:45 0.024 12:00 0.098 0.066 0.066 0.02
04/11/2021 03:25 1.63 11:35 2.98 2.37 03:05 0.52 11:25 1.07 0.83 02:50 0.024 11:25 0.115 0.068 0.068 -
04/12/2021 04:00 1.70 20:35 2.82 2.38 03:45 0.56 20:20 1.01 0.84 03:50 0.027 20:35 0.101 0.068 0.068 -
04/13/2021 03:05 1.54 19:35 2.87 2.35 02:35 0.52 19:35 1.05 0.83 02:55 0.022 19:35 0.108 0.067 0.067 -
04/14/2021 04:20 1.64 21:15 2.83 2.33 04:25 0.55 19:25 1.03 0.82 04:20 0.025 19:30 0.103 0.065 0.065 -
09/23/2020 23:05 2.06 17:45 2.99 2.63 23:05 0.71 17:30 1.08 0.94 23:05 0.045 17:35 0.116 0.086 0.054 -
09/24/2020 03:30 1.39 10:55 2.79 2.26 03:25 0.43 10:50 1.02 0.79 03:10 0.016 10:55 0.100 0.061 0.061 -
09/25/2020 04:15 1.44 12:50 2.86 2.30 03:00 0.45 12:45 1.06 0.81 02:45 0.018 12:50 0.108 0.064 0.064 -
09/26/2020 03:00 1.48 10:35 3.01 2.26 02:55 0.48 10:35 1.10 0.80 02:55 0.019 10:35 0.121 0.061 0.061 -
09/27/2020 03:05 1.70 14:15 2.95 2.32 03:05 0.58 14:10 1.10 0.83 03:00 0.028 14:15 0.117 0.066 0.066 -
09/28/2020 03:55 1.38 20:35 2.78 2.23 03:10 0.45 20:35 1.00 0.78 03:50 0.016 20:35 0.098 0.059 0.059 -
09/29/2020 04:05 1.38 21:05 2.89 2.28 04:10 0.47 11:50 1.02 0.80 03:45 0.017 11:50 0.098 0.062 0.062 -
09/30/2020 04:30 1.54 19:30 2.89 2.32 04:25 0.45 19:20 1.08 0.79 04:25 0.019 19:35 0.112 0.063 0.063 -
10/01/2020 03:45 1.34 20:25 2.74 2.24 04:05 0.39 19:20 1.00 0.79 03:50 0.014 20:15 0.095 0.060 0.060 -
10/02/2020 04:05 1.42 19:15 2.72 2.24 03:45 0.44 19:05 0.98 0.79 03:50 0.016 19:15 0.093 0.059 0.059 -
10/03/2020 04:40 1.53 11:35 2.71 2.25 04:25 0.50 11:30 0.98 0.79 04:35 0.021 11:35 0.093 0.060 0.060 0.01
10/04/2020 04:35 1.36 15:30 2.74 2.25 04:20 0.43 15:30 1.02 0.80 04:20 0.015 15:30 0.097 0.062 0.062 0.01
10/05/2020 03:00 1.43 20:10 2.78 2.27 02:35 0.46 20:10 1.04 0.81 02:45 0.018 20:10 0.102 0.062 0.062 -
10/06/2020 03:10 1.37 20:15 2.67 2.25 03:00 0.41 20:05 0.99 0.80 03:00 0.015 20:05 0.091 0.061 0.061 -
10/07/2020 04:45 1.46 19:30 2.72 2.26 04:30 0.47 19:35 1.01 0.81 04:40 0.018 19:35 0.096 0.062 0.062 -
10/08/2020 02:40 1.39 19:50 2.83 2.23 02:45 0.44 19:50 1.08 0.79 02:30 0.016 19:50 0.108 0.060 0.060 -
10/09/2020 04:30 1.44 23:45 3.10 2.26 03:25 0.39 23:40 1.16 0.78 04:25 0.017 23:45 0.132 0.060 0.060 0.64
10/10/2020 04:30 1.93 02:25 3.09 2.49 04:30 0.64 00:00 1.14 0.88 04:30 0.037 02:20 0.130 0.075 0.075 1.04
10/11/2020 05:15 1.43 14:55 3.07 2.30 05:50 0.47 14:55 1.15 0.82 04:35 0.018 14:55 0.130 0.066 0.066 0.53
10/12/2020 04:30 1.38 20:35 2.82 2.22 04:35 0.43 20:35 1.03 0.79 04:35 0.015 20:35 0.103 0.059 0.059 -
10/13/2020 03:25 1.56 08:05 2.92 2.33 01:55 0.52 07:55 1.10 0.83 03:30 0.022 08:00 0.115 0.066 0.066 0.61
10/14/2020 04:25 1.37 08:35 2.80 2.20 04:35 0.41 08:35 1.04 0.78 04:20 0.015 08:35 0.103 0.058 0.058 -
10/15/2020 03:45 1.47 20:55 2.74 2.28 03:45 0.46 20:55 1.00 0.81 03:45 0.018 20:55 0.096 0.062 0.062 -
10/16/2020 04:15 1.34 16:10 2.62 2.19 02:55 0.44 16:10 0.96 0.77 04:05 0.015 16:10 0.086 0.057 0.057 -
10/17/2020 04:40 1.47 13:00 2.74 2.21 04:30 0.46 13:00 1.00 0.78 04:30 0.018 13:00 0.096 0.058 0.058 0.01
10/18/2020 04:55 1.33 12:25 2.79 2.20 04:35 0.42 12:25 1.02 0.78 04:35 0.014 12:25 0.100 0.059 0.059 0.03
10/19/2020 04:15 1.46 12:15 2.75 2.23 04:20 0.41 11:25 1.00 0.78 04:20 0.016 11:25 0.095 0.058 0.058 0.05
10/20/2020 04:15 1.32 20:00 2.78 2.17 03:10 0.43 20:00 1.03 0.76 04:20 0.014 20:00 0.100 0.056 0.056 -
10/21/2020 04:25 1.34 19:15 2.71 2.17 04:15 0.40 20:50 0.95 0.75 04:10 0.014 19:15 0.088 0.055 0.055 0.01
10/22/2020 02:35 1.45 11:45 2.67 2.18 02:10 0.38 18:20 0.98 0.74 02:10 0.015 18:25 0.090 0.055 0.055 -
10/23/2020 04:00 1.28 20:05 2.68 2.16 02:50 0.38 20:10 0.97 0.76 03:55 0.012 20:10 0.090 0.056 0.056 0.20
10/24/2020 04:30 1.61 10:40 2.75 2.18 04:15 0.53 09:15 1.00 0.77 04:10 0.024 10:45 0.096 0.055 0.055 0.02
10/25/2020 06:15 1.37 14:20 2.73 2.16 06:00 0.43 14:25 0.99 0.76 06:15 0.015 14:20 0.094 0.056 0.056 -
10/26/2020 04:00 1.58 20:30 2.65 2.22 04:15 0.52 20:25 0.98 0.79 04:15 0.022 20:25 0.089 0.059 0.059 -
10/27/2020 04:35 1.30 19:25 2.74 2.15 04:20 0.35 19:25 1.04 0.76 04:10 0.012 19:25 0.100 0.055 0.055 -
10/28/2020 04:20 1.34 18:40 2.67 2.17 04:35 0.35 16:40 0.97 0.76 03:40 0.014 18:40 0.090 0.056 0.056 -
10/29/2020 02:20 1.46 19:50 2.81 2.19 02:40 0.43 19:50 1.05 0.77 02:40 0.017 19:50 0.104 0.057 0.057 -
10/30/2020 04:45 1.45 10:30 2.62 2.22 05:15 0.41 10:30 0.95 0.78 05:15 0.016 10:30 0.085 0.058 0.058 0.10
10/31/2020 03:00 1.44 13:40 2.95 2.26 03:05 0.45 13:35 1.05 0.78 02:55 0.017 13:40 0.112 0.060 0.060 -
11/01/2020 03:45 1.46 10:20 2.87 2.26 03:30 0.44 10:20 1.04 0.78 03:30 0.017 10:20 0.106 0.061 0.061 -
Page 543 of 1163
23
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/02/2020 05:15 1.38 16:40 2.63 2.19 04:15 0.40 16:50 0.95 0.76 04:40 0.015 16:40 0.085 0.056 0.056 -
11/03/2020 04:15 1.35 10:50 3.05 2.30 03:55 0.41 10:45 1.13 0.80 03:40 0.014 10:45 0.126 0.065 0.065 0.83
11/04/2020 04:15 1.36 18:50 2.71 2.20 04:00 0.42 18:45 0.99 0.77 04:00 0.015 18:50 0.093 0.057 0.057 0.09
11/05/2020 04:55 1.42 20:55 2.82 2.28 04:45 0.44 20:55 1.04 0.80 04:40 0.017 20:55 0.104 0.063 0.063 0.34
11/06/2020 06:05 1.67 11:00 2.69 2.25 06:10 0.53 10:55 1.00 0.78 06:00 0.025 10:55 0.092 0.058 0.058 0.10
11/07/2020 04:00 1.39 15:40 2.78 2.22 03:20 0.44 15:45 1.03 0.78 04:00 0.016 15:45 0.101 0.058 0.058 0.07
11/08/2020 05:50 1.31 12:50 2.75 2.23 05:40 0.36 21:25 1.01 0.78 05:40 0.012 21:25 0.097 0.060 0.060 0.01
11/09/2020 05:35 1.38 20:05 2.74 2.19 05:25 0.41 20:00 1.01 0.76 05:25 0.015 20:00 0.096 0.056 0.056 0.04
11/10/2020 02:50 1.41 21:15 2.67 2.18 02:40 0.43 17:00 0.98 0.77 02:40 0.016 21:15 0.091 0.056 0.056 0.03
11/11/2020 04:05 1.30 16:05 2.60 2.15 03:50 0.38 14:10 1.03 0.79 04:00 0.012 16:05 0.091 0.057 0.057 -
11/12/2020 04:50 1.30 19:40 2.77 2.14 05:10 0.45 19:40 1.01 0.78 05:10 0.015 19:40 0.098 0.056 0.056 0.16
11/13/2020 02:15 1.65 13:25 2.79 2.28 02:10 0.54 13:20 1.10 0.80 02:10 0.025 13:20 0.108 0.060 0.060 0.38
11/14/2020 04:40 1.45 18:55 3.02 2.24 04:40 0.48 18:50 1.13 0.79 04:40 0.018 18:55 0.124 0.060 0.060 0.47
11/15/2020 04:55 1.38 13:15 2.92 2.22 05:05 0.42 13:20 1.08 0.78 04:55 0.015 13:15 0.113 0.059 0.059 0.19
11/16/2020 02:50 1.53 13:55 2.95 2.25 02:50 0.49 13:50 1.10 0.79 02:50 0.020 13:55 0.117 0.061 0.061 0.31
11/17/2020 05:30 1.37 19:25 2.78 2.22 05:35 0.41 19:25 1.01 0.77 05:25 0.015 19:25 0.099 0.058 0.058 0.20
11/18/2020 04:15 1.35 20:10 2.86 2.25 04:30 0.42 18:15 1.05 0.79 03:55 0.015 18:20 0.107 0.061 0.061 0.30
11/19/2020 02:50 1.62 13:25 2.96 2.32 02:50 0.53 13:20 1.09 0.82 02:50 0.024 13:25 0.117 0.064 0.064 0.50
11/20/2020 05:50 1.60 13:20 2.69 2.28 05:05 0.52 13:15 0.98 0.79 05:20 0.023 13:15 0.091 0.060 0.060 0.01
11/21/2020 04:35 1.54 15:05 2.88 2.25 06:20 0.49 14:50 1.06 0.79 06:20 0.021 15:00 0.109 0.060 0.060 -
11/22/2020 06:05 1.35 12:15 2.81 2.26 01:15 0.37 12:10 1.02 0.78 05:55 0.014 12:25 0.102 0.061 0.061 0.21
11/23/2020 05:05 1.52 17:50 2.74 2.30 05:00 0.46 17:50 0.97 0.78 03:40 0.019 17:50 0.093 0.061 0.061 0.14
11/24/2020 05:20 1.49 16:40 2.82 2.25 03:25 0.43 16:30 1.01 0.76 03:25 0.018 16:35 0.101 0.059 0.059 0.21
11/25/2020 05:25 1.48 18:20 2.82 2.28 04:55 0.44 18:20 1.03 0.78 05:25 0.018 18:20 0.103 0.061 0.061 0.05
11/26/2020 06:25 1.60 12:15 2.88 2.24 06:15 0.52 12:20 1.06 0.78 06:20 0.023 12:20 0.109 0.059 0.059 0.02
11/27/2020 05:30 1.41 13:55 2.76 2.22 05:10 0.45 13:50 1.01 0.77 05:05 0.017 13:50 0.097 0.059 0.059 -
11/28/2020 04:50 1.61 12:50 2.87 2.25 04:40 0.51 12:45 1.06 0.78 04:50 0.022 12:50 0.109 0.060 0.060 0.05
11/29/2020 06:00 1.39 13:30 2.79 2.22 06:20 0.44 13:25 1.02 0.78 06:00 0.016 13:30 0.101 0.059 0.059 -
11/30/2020 03:45 1.48 22:05 2.70 2.29 03:35 0.48 19:15 0.99 0.81 03:35 0.019 19:20 0.093 0.062 0.062 0.36
12/01/2020 04:10 1.48 18:00 2.73 2.20 04:00 0.44 18:00 1.02 0.76 04:05 0.017 18:00 0.097 0.056 0.056 -
12/02/2020 04:00 1.31 21:10 2.75 2.19 04:05 0.38 21:15 1.01 0.77 04:00 0.013 21:15 0.097 0.056 0.056 0.01
12/03/2020 04:10 1.41 14:15 2.72 2.17 04:15 0.46 14:15 1.02 0.76 04:10 0.017 14:15 0.097 0.054 0.054 -
12/04/2020 03:20 1.49 19:40 2.62 2.16 03:30 0.45 18:15 0.96 0.76 03:25 0.018 21:25 0.087 0.054 0.054 -
12/05/2020 05:15 1.42 12:45 2.71 2.19 05:20 0.42 12:30 0.99 0.76 05:15 0.016 12:30 0.093 0.056 0.056 0.03
12/06/2020 05:20 1.49 13:20 2.86 2.23 03:30 0.48 13:25 1.06 0.78 03:35 0.019 13:25 0.108 0.059 0.059 0.03
12/07/2020 03:55 1.35 17:45 2.76 2.19 04:00 0.36 17:50 1.00 0.76 04:00 0.012 17:50 0.096 0.055 0.055 -
12/08/2020 04:30 1.42 15:35 2.95 2.35 04:40 0.41 19:00 1.09 0.82 04:35 0.015 15:35 0.114 0.067 0.067 0.87
12/09/2020 04:50 1.67 11:25 2.74 2.34 03:30 0.54 15:40 0.96 0.79 03:30 0.025 11:25 0.091 0.062 0.062 0.17
12/10/2020 02:25 1.40 11:10 2.86 2.21 02:35 0.43 11:15 0.98 0.75 02:15 0.016 11:10 0.099 0.055 0.055 0.07
12/11/2020 01:05 1.38 14:10 2.73 2.21 02:15 0.42 14:10 0.98 0.76 02:15 0.015 14:10 0.093 0.056 0.056 0.02
12/12/2020 03:20 1.43 17:50 2.67 2.18 03:20 0.46 17:55 0.98 0.76 03:20 0.017 17:50 0.090 0.055 0.055 0.01
12/13/2020 23:30 1.52 09:25 2.90 2.29 23:50 0.44 09:15 1.06 0.81 23:45 0.020 09:25 0.110 0.063 0.063 0.24
12/14/2020 02:25 1.57 13:00 2.72 2.28 00:45 0.42 13:00 1.00 0.80 00:25 0.019 13:00 0.095 0.061 0.051 0.05
12/15/2020 04:55 1.45 16:50 3.07 2.37 05:05 0.38 16:45 1.13 0.82 05:05 0.016 16:55 0.128 0.069 0.069 0.58
12/16/2020 04:55 1.80 18:10 2.89 2.43 05:00 0.53 15:25 1.05 0.84 04:55 0.028 15:30 0.108 0.071 0.071 0.39
12/17/2020 04:15 1.73 13:35 2.82 2.35 04:00 0.58 13:35 1.04 0.83 04:00 0.029 13:35 0.104 0.066 0.066 0.08
12/18/2020 03:15 1.73 15:40 2.85 2.33 04:45 0.51 15:40 1.09 0.80 03:40 0.026 15:40 0.111 0.064 0.064 0.25
12/19/2020 07:10 1.64 21:00 2.97 2.39 07:10 0.49 20:55 1.06 0.81 07:15 0.022 21:05 0.114 0.067 0.067 0.37
12/20/2020 05:40 2.01 12:05 2.89 2.48 05:30 0.61 11:50 1.01 0.83 05:40 0.038 12:00 0.104 0.071 0.071 0.04
12/21/2020 02:35 1.92 19:05 3.76 2.76 02:35 0.64 19:05 1.32 0.98 02:35 0.037 19:05 0.199 0.100 0.100 1.07
12/22/2020 05:05 2.36 00:00 3.12 2.73 05:10 0.80 00:00 1.13 0.97 05:10 0.062 00:00 0.130 0.093 0.093 -
12/23/2020 04:00 1.91 13:05 2.89 2.47 03:55 0.63 13:05 1.06 0.86 03:55 0.036 13:05 0.110 0.073 0.073 -
12/24/2020 05:15 1.64 12:50 2.85 2.34 05:15 0.55 12:50 1.04 0.82 05:15 0.025 12:50 0.105 0.065 0.065 -
12/25/2020 04:30 1.61 19:05 2.79 2.28 04:40 0.53 19:00 1.03 0.80 04:25 0.024 19:05 0.102 0.061 0.061 0.49
12/26/2020 06:45 1.68 13:35 2.75 2.29 04:55 0.50 13:00 1.00 0.81 04:55 0.024 13:35 0.096 0.062 0.062 0.02
12/27/2020 05:45 1.44 12:55 2.88 2.32 05:45 0.47 13:00 1.09 0.82 05:40 0.018 12:55 0.112 0.065 0.065 0.13
12/28/2020 05:25 1.64 13:30 2.79 2.29 05:25 0.53 13:25 1.01 0.81 05:25 0.024 13:25 0.099 0.062 0.062 -
12/29/2020 05:45 1.53 20:10 2.85 2.34 05:25 0.50 18:40 1.03 0.82 05:45 0.020 18:40 0.104 0.066 0.066 0.14
12/30/2020 04:35 1.99 14:10 3.14 2.69 04:35 0.68 14:00 1.16 0.96 04:35 0.041 14:00 0.133 0.092 0.092 0.78
12/31/2020 04:20 2.36 14:10 3.16 2.73 04:10 0.81 12:10 1.11 0.96 04:10 0.063 14:10 0.130 0.093 0.093 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 14.520 30.65
Average 2.41 0.84 0.071
Page 544 of 1163
24
Page 545 of 1163
25
AUB_A12_71043
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 0.78 1.07 0.018
Minimum 0.10 0.21 0.000
Maximum 1.90 2.60 0.088
Min Time 09/27/2020 2:00:00 AM 11/18/2020 4:00:00 AM 10/14/2020 3:00:00 AM
Max Time 11/14/2020 6:00:00 PM 11/30/2020 11:00:00 AM 02/07/2021 10:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Conti nuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.319
VFINAL (ft/s) 99.319
QFINAL (MGD - Total MG) 99.319
Pipe Elliptical (11.5 in H x 12 in W)
Silt 0.00 (in)
Page 546 of 1163
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Hydrograph Report
AUB_A12_71043
Page 547 of 1163
4455 S. 134th Place
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Scattergraph Report
AUB_A12_71043
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4455 S. 134th Place
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A12_71043Pipe: Elliptical (11.5 in H x 12 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 22:20 0.33 09:45 0.72 0.53 08:30 0.25 15:45 2.83 0.95 22:55 0.002 15:55 0.033 0.008 0.008 0.51
01/02/2021 07:00 0.30 23:25 0.81 0.46 01:00 0.33 21:20 2.31 0.78 07:00 0.001 15:55 0.022 0.005 0.005 1.69
01/03/2021 14:05 0.32 17:10 0.93 0.48 04:50 0.23 09:10 2.31 0.81 06:05 0.001 16:05 0.019 0.006 0.006 0.65
01/04/2021 00:30 0.43 16:10 0.99 0.59 07:05 0.26 18:35 2.35 0.85 00:15 0.002 21:40 0.029 0.008 0.008 0.48
01/05/2021 03:10 0.38 16:10 1.07 0.64 01:30 0.34 12:10 2.49 1.03 00:00 0.003 09:35 0.048 0.012 0.012 0.52
01/06/2021 23:35 0.40 17:05 1.28 0.81 11:35 0.36 21:15 2.57 1.15 04:05 0.004 16:20 0.058 0.019 0.019 0.22
01/07/2021 00:25 0.46 10:05 2.94 0.95 03:50 0.37 16:25 3.67 1.17 00:05 0.005 13:35 0.122 0.024 0.024 -
01/08/2021 04:15 0.39 01:55 1.15 0.78 02:00 0.22 16:55 2.62 0.92 04:15 0.003 16:55 0.046 0.013 0.013 0.22
01/09/2021 04:45 0.39 08:00 1.07 0.73 04:30 0.19 09:15 2.30 0.92 03:40 0.001 09:20 0.045 0.013 0.013 -
01/10/2021 02:05 0.40 22:50 1.21 0.80 04:10 0.20 13:55 2.71 1.09 04:10 0.001 13:55 0.057 0.018 0.018 0.07
01/11/2021 04:50 0.41 09:50 1.46 0.92 01:20 0.23 11:05 2.92 1.21 01:20 0.003 10:00 0.079 0.024 0.024 1.06
01/12/2021 14:40 0.65 16:25 1.39 0.95 14:00 0.33 17:40 2.59 1.42 00:55 0.004 16:25 0.065 0.028 0.028 2.10
01/13/2021 03:30 0.58 19:25 1.16 0.78 14:50 0.12 17:50 2.34 0.89 14:50 0.002 18:30 0.044 0.013 0.013 0.09
01/14/2021 02:00 0.59 15:20 1.30 0.79 04:15 0.12 16:10 3.06 0.94 04:15 0.001 15:25 0.064 0.015 0.015 0.01
01/15/2021 03:05 0.59 09:40 1.34 0.82 02:20 0.20 10:30 2.19 0.83 03:00 0.002 08:50 0.064 0.013 0.013 0.09
01/16/2021 04:20 0.42 17:25 1.32 0.85 04:20 0.21 09:45 2.53 1.09 04:20 0.001 17:25 0.059 0.020 0.020 -
01/17/2021 05:20 0.48 08:20 1.37 0.82 01:15 0.24 19:15 2.66 1.04 04:35 0.002 08:20 0.069 0.018 0.018 0.10
01/18/2021 05:55 0.51 07:15 1.36 0.81 01:40 0.24 07:55 2.34 1.05 01:40 0.003 07:20 0.065 0.018 0.018 -
01/19/2021 06:40 0.58 16:25 1.37 0.88 05:50 0.26 18:10 2.30 0.94 05:50 0.003 17:15 0.065 0.017 0.017 0.01
01/20/2021 02:10 0.38 07:00 1.22 0.80 03:50 0.23 16:00 2.48 0.97 03:45 0.001 07:05 0.055 0.016 0.016 -
01/21/2021 03:35 0.40 09:00 1.73 0.87 04:20 0.20 18:25 2.47 0.96 03:10 0.002 09:00 0.095 0.018 0.018 0.11
01/22/2021 05:05 0.40 07:25 1.31 0.82 03:55 0.26 12:20 2.54 0.97 03:05 0.002 12:20 0.073 0.016 0.016 -
01/23/2021 03:25 0.40 20:05 1.54 0.84 04:50 0.22 20:00 2.61 1.18 04:50 0.003 20:05 0.095 0.021 0.021 -
01/24/2021 03:20 0.47 00:05 1.39 0.88 06:00 0.27 09:50 2.90 1.25 03:15 0.004 00:05 0.072 0.023 0.023 0.16
01/25/2021 03:45 0.38 09:40 1.14 0.77 04:55 0.12 17:25 2.77 1.03 04:55 0.001 17:25 0.046 0.016 0.016 0.04
01/26/2021 03:05 0.42 06:00 1.39 0.76 00:55 0.34 11:55 2.49 0.96 02:25 0.002 06:00 0.051 0.015 0.015 -
01/27/2021 04:45 0.59 17:30 1.19 0.83 02:55 0.25 11:20 2.29 1.02 01:55 0.003 22:20 0.046 0.017 0.017 0.14
01/28/2021 03:45 0.65 08:30 1.17 0.84 02:35 0.34 11:55 2.61 1.07 02:35 0.004 11:55 0.052 0.018 0.018 0.24
01/29/2021 04:50 0.57 10:15 1.27 0.80 05:15 0.23 09:45 2.50 1.00 05:15 0.002 10:15 0.062 0.016 0.016 0.03
01/30/2021 02:05 0.62 10:35 1.21 0.85 02:25 0.19 12:00 2.64 1.06 02:05 0.002 12:00 0.070 0.018 0.018 0.07
01/31/2021 04:30 0.59 00:30 1.30 0.90 02:50 0.24 14:50 2.50 1.04 07:30 0.003 13:15 0.050 0.019 0.019 0.12
02/01/2021 03:35 0.72 07:30 1.37 0.92 01:15 0.38 13:45 3.09 1.08 01:05 0.005 13:45 0.066 0.021 0.021 0.82
02/02/2021 16:20 0.70 06:50 1.53 0.95 03:25 0.24 08:05 2.57 1.20 03:25 0.004 11:00 0.074 0.025 0.025 0.31
02/03/2021 02:30 0.69 08:55 1.48 0.88 04:10 0.28 17:25 2.29 0.97 02:30 0.004 08:55 0.077 0.017 0.017 0.06
02/04/2021 04:15 0.60 17:50 1.32 0.86 02:50 0.10 12:40 2.61 0.94 02:50 0.001 17:50 0.061 0.017 0.017 0.07
02/05/2021 04:00 0.41 18:15 1.38 0.95 04:45 0.22 20:00 2.31 1.19 03:35 0.001 08:30 0.065 0.027 0.027 0.01
02/06/2021 00:30 0.66 09:40 1.88 1.19 07:15 0.33 22:55 2.31 1.42 00:30 0.005 13:20 0.091 0.042 0.042 0.01
02/07/2021 19:35 0.63 11:10 1.78 1.05 19:40 0.25 13:20 2.54 1.27 19:40 0.003 11:10 0.111 0.031 0.031 -
02/08/2021 02:25 0.63 11:15 1.44 0.90 02:55 0.29 13:45 2.69 1.00 02:15 0.003 11:15 0.072 0.019 0.019 -
02/09/2021 23:35 0.59 06:50 1.37 0.93 03:30 0.20 09:35 2.29 0.93 03:20 0.003 12:30 0.060 0.018 0.018 -
02/10/2021 05:10 0.54 20:45 1.50 0.92 02:15 0.22 10:10 2.98 1.04 03:05 0.003 20:45 0.083 0.020 0.020 -
02/11/2021 02:40 0.39 07:00 1.53 0.83 03:00 0.24 08:40 2.38 0.92 02:25 0.001 07:00 0.078 0.017 0.017 -
02/12/2021 04:30 0.49 08:25 1.37 0.85 04:55 0.27 10:10 2.34 0.91 03:20 0.002 12:05 0.063 0.017 0.017 -
02/13/2021 21:35 0.71 11:30 1.61 1.09 03:30 0.22 19:30 2.67 1.59 03:15 0.003 08:45 0.084 0.038 0.038 0.08
02/14/2021 04:00 0.43 10:25 1.62 0.93 06:10 0.41 10:05 2.47 1.28 02:35 0.003 10:25 0.098 0.027 0.027 0.71
02/15/2021 00:00 0.65 19:00 1.38 0.98 23:20 0.46 11:00 3.09 1.21 00:00 0.006 11:00 0.078 0.025 0.025 0.78
02/16/2021 03:20 0.54 20:20 1.50 0.83 02:50 0.24 13:25 2.36 1.10 04:00 0.003 20:20 0.077 0.018 0.018 0.07
02/17/2021 02:10 0.38 11:10 1.56 0.81 04:25 0.10 18:25 2.43 0.93 04:25 0.001 11:10 0.088 0.016 0.016 -
02/18/2021 02:30 0.42 09:30 1.25 0.79 02:15 0.20 10:25 2.55 1.00 02:15 0.001 09:25 0.068 0.017 0.017 0.09
02/19/2021 05:55 0.53 07:30 1.23 0.83 02:40 0.28 11:00 2.97 1.00 05:50 0.003 18:50 0.063 0.017 0.017 0.17
02/20/2021 03:40 0.44 15:45 1.41 0.76 06:10 0.30 10:30 2.57 1.03 02:35 0.002 15:45 0.073 0.016 0.016 0.07
02/21/2021 03:20 0.38 08:35 1.14 0.77 06:25 0.22 09:40 2.42 0.99 02:40 0.001 09:40 0.056 0.015 0.015 0.42
02/22/2021 05:40 0.67 06:15 1.30 0.85 02:55 0.41 12:55 2.70 0.98 01:30 0.005 16:55 0.064 0.017 0.017 0.98
02/23/2021 03:35 0.43 21:35 1.30 0.79 05:30 0.21 20:20 2.66 0.92 01:25 0.002 21:45 0.061 0.015 0.015 0.27
02/24/2021 02:25 0.41 18:15 1.45 0.83 03:50 0.24 20:05 2.55 0.91 02:10 0.003 18:15 0.082 0.015 0.015 -
02/25/2021 23:35 0.67 12:00 1.49 0.87 02:40 0.32 18:30 3.33 0.94 03:50 0.004 12:00 0.089 0.017 0.017 0.18
02/26/2021 04:55 0.39 09:35 1.10 0.79 10:35 0.25 09:30 2.55 1.00 03:05 0.002 09:30 0.060 0.017 0.017 0.10
02/27/2021 04:05 0.38 10:10 1.11 0.81 03:15 0.19 12:10 2.33 1.07 03:15 0.001 10:10 0.053 0.019 0.019 0.02
02/28/2021 04:25 0.39 14:55 1.52 0.82 03:55 0.15 09:40 3.21 0.97 03:55 0.001 09:40 0.095 0.018 0.018 0.02
03/01/2021 02:45 0.41 10:45 1.35 0.80 03:00 0.21 18:30 2.44 0.93 03:00 0.001 11:10 0.072 0.016 0.016 -
03/02/2021 03:40 0.40 19:00 1.31 0.83 04:30 0.27 08:50 2.23 0.94 01:30 0.002 19:00 0.065 0.016 0.016 -
03/03/2021 02:55 0.39 18:15 1.53 0.90 03:25 0.13 10:00 2.46 0.93 03:15 0.001 18:15 0.079 0.019 0.019 -
03/04/2021 01:20 0.40 20:05 1.54 0.89 06:00 0.11 09:05 2.48 0.99 01:20 0.001 19:45 0.088 0.021 0.021 0.20
03/05/2021 03:50 0.38 19:40 1.51 0.79 02:35 0.26 08:10 2.80 0.93 01:00 0.002 19:40 0.082 0.016 0.016 0.05
03/06/2021 02:40 0.53 10:25 1.39 0.90 02:55 0.24 10:40 2.76 1.03 02:55 0.002 10:40 0.084 0.021 0.021 -
03/07/2021 17:00 0.54 08:55 1.39 0.92 05:20 0.22 10:00 2.58 1.11 00:00 0.003 10:00 0.071 0.022 0.022 0.04
03/08/2021 03:25 0.39 10:05 1.11 0.77 03:05 0.22 21:45 2.54 0.82 03:05 0.001 10:05 0.052 0.012 0.012 -
03/09/2021 03:15 0.40 12:30 1.19 0.80 03:20 0.20 11:50 3.40 0.88 03:05 0.001 11:50 0.061 0.014 0.014 0.01
03/10/2021 03:25 0.40 20:30 1.34 0.76 03:25 0.22 11:30 3.16 0.80 03:05 0.001 20:30 0.075 0.013 0.013 -
03/11/2021 14:05 0.53 10:05 1.36 0.91 04:00 0.08 08:10 2.72 1.06 04:00 0.001 10:05 0.069 0.020 0.020 -
Page 549 of 1163
29
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 05:15 0.44 07:45 1.40 0.87 02:45 0.20 07:45 2.42 0.88 05:10 0.001 07:45 0.082 0.016 0.016 -
03/13/2021 02:55 0.45 10:35 1.57 0.77 01:50 0.28 11:00 2.49 1.01 01:50 0.002 10:35 0.098 0.016 0.016 -
03/14/2021 04:10 0.42 20:10 1.47 0.77 06:15 0.22 20:05 2.73 1.21 01:30 0.002 20:10 0.087 0.020 0.020 0.30
03/15/2021 02:35 0.44 12:10 1.57 0.84 02:35 0.20 18:00 2.78 1.29 02:35 0.001 12:10 0.086 0.023 0.023 -
03/16/2021 02:20 0.46 08:30 1.41 0.83 00:35 0.24 19:05 2.77 0.99 00:00 0.002 08:30 0.075 0.018 0.018 -
03/17/2021 02:10 0.53 19:55 1.14 0.80 01:05 0.19 19:55 3.05 1.00 00:50 0.002 19:55 0.076 0.017 0.017 -
03/18/2021 02:20 0.43 19:40 1.82 0.82 00:55 0.16 07:10 2.77 1.17 00:55 0.001 19:40 0.118 0.021 0.021 0.11
03/19/2021 02:25 0.40 07:25 1.37 0.92 03:25 0.27 10:00 2.64 0.86 01:35 0.002 20:15 0.076 0.018 0.018 0.03
03/20/2021 01:35 0.49 12:05 1.40 0.99 04:00 0.25 21:25 2.77 0.98 01:15 0.002 07:30 0.077 0.023 0.023 0.17
03/21/2021 02:30 0.42 10:20 1.39 0.94 03:15 0.22 15:45 2.63 0.96 03:15 0.001 08:45 0.072 0.021 0.021 0.07
03/22/2021 02:25 0.58 10:55 1.67 1.04 01:20 0.24 08:55 2.42 1.01 00:25 0.004 19:30 0.092 0.026 0.026 0.11
03/23/2021 01:30 0.38 09:35 2.23 0.99 00:55 0.23 09:30 2.38 1.01 00:55 0.001 09:35 0.147 0.025 0.025 -
03/24/2021 00:45 0.41 07:50 1.55 0.95 01:20 0.26 05:50 2.49 1.04 00:25 0.002 07:50 0.072 0.022 0.022 0.34
03/25/2021 02:50 0.64 07:40 1.31 0.95 23:45 0.29 09:40 2.60 0.86 23:40 0.004 07:50 0.072 0.017 0.017 0.27
03/26/2021 01:55 0.47 19:00 1.33 0.87 04:05 0.12 14:35 2.56 0.79 04:05 0.001 18:25 0.063 0.015 0.015 -
03/27/2021 05:40 0.65 08:00 1.74 0.99 23:10 0.22 07:55 2.53 0.83 02:10 0.004 08:00 0.112 0.019 0.019 -
03/28/2021 03:35 0.49 13:45 1.71 1.05 01:25 0.18 08:55 2.52 1.17 00:20 0.003 13:45 0.098 0.031 0.031 0.37
03/29/2021 02:30 0.66 15:00 1.82 1.04 01:05 0.23 07:45 2.57 1.01 02:00 0.003 15:00 0.076 0.024 0.024 -
03/30/2021 02:40 0.64 07:30 1.39 1.00 23:20 0.20 07:50 2.52 0.87 01:00 0.003 07:50 0.084 0.019 0.019 -
03/31/2021 00:25 0.38 09:45 1.64 1.04 05:15 0.29 17:50 2.20 0.82 02:15 0.002 09:45 0.093 0.020 0.020 -
04/01/2021 03:25 0.54 14:00 1.80 1.06 03:30 0.13 08:00 2.35 1.16 03:30 0.001 14:25 0.084 0.029 0.029 -
04/02/2021 00:55 0.48 14:10 1.40 1.06 03:20 0.28 15:00 2.47 1.09 00:55 0.002 15:00 0.072 0.028 0.028 -
04/03/2021 02:05 0.44 05:15 1.96 1.01 03:40 0.25 10:55 2.37 0.84 03:05 0.002 11:00 0.102 0.020 0.020 -
04/04/2021 02:30 0.39 11:40 1.96 0.96 03:50 0.24 09:05 2.47 0.81 02:10 0.001 11:45 0.102 0.020 0.020 -
04/05/2021 04:20 0.51 04:05 1.69 1.08 01:35 0.22 20:00 2.34 0.92 01:25 0.002 23:00 0.079 0.025 0.025 -
04/06/2021 23:55 0.44 20:55 1.52 1.06 04:20 0.30 10:00 2.33 0.84 04:20 0.002 21:00 0.079 0.021 0.021 -
04/07/2021 00:45 0.38 17:10 2.67 1.00 03:05 0.19 17:45 2.39 0.87 04:00 0.001 18:10 0.121 0.023 0.023 0.22
04/08/2021 05:45 0.60 09:55 2.44 1.08 03:45 0.20 09:45 2.63 0.94 02:30 0.004 10:00 0.133 0.023 0.023 -
04/09/2021 03:30 0.52 11:55 2.06 1.06 02:25 0.19 06:05 2.37 0.94 05:05 0.003 11:55 0.096 0.023 0.023 0.03
04/10/2021 02:40 0.57 11:25 2.14 1.17 02:15 0.19 12:50 2.86 1.00 02:30 0.002 08:10 0.130 0.028 0.028 0.02
04/11/2021 03:50 0.68 09:55 1.89 1.12 04:05 0.28 11:10 2.47 0.85 04:00 0.003 09:55 0.115 0.024 0.024 -
04/12/2021 02:05 0.50 08:55 2.00 1.02 02:45 0.21 10:35 2.60 1.52 01:45 0.002 08:55 0.120 0.036 0.036 -
04/13/2021 03:20 0.41 11:55 1.39 1.00 13:30 0.23 17:00 3.48 0.88 03:10 0.002 17:00 0.112 0.020 0.020 -
04/14/2021 02:55 0.49 07:50 1.61 0.98 03:40 0.23 09:00 2.59 0.79 02:55 0.002 07:50 0.074 0.018 0.018 -
09/23/2020 23:45 0.69 11:30 1.90 1.39 21:45 0.36 14:05 1.83 1.05 21:45 0.006 16:45 0.068 0.037 0.022 -
09/24/2020 02:50 0.46 11:20 1.53 1.06 04:05 0.28 03:15 1.97 1.08 02:45 0.002 18:10 0.050 0.025 0.025 -
09/25/2020 01:55 0.43 09:20 1.65 1.10 02:45 0.18 17:15 1.93 0.96 01:35 0.001 09:20 0.054 0.025 0.025 -
09/26/2020 04:30 0.21 05:30 1.96 0.90 00:35 0.22 05:40 1.97 1.18 01:45 0.001 09:15 0.066 0.023 0.023 -
09/27/2020 02:40 0.07 10:15 1.66 0.83 04:40 0.25 20:40 1.81 1.09 02:10 0.000 10:15 0.067 0.021 0.021 -
09/28/2020 04:20 0.15 17:50 1.08 0.58 23:35 0.17 10:05 2.35 1.46 00:20 0.001 17:55 0.049 0.017 0.017 -
09/29/2020 02:10 0.14 08:00 1.41 0.49 00:05 0.12 18:55 2.56 1.51 00:05 0.001 08:00 0.069 0.013 0.013 -
09/30/2020 17:40 0.06 08:55 1.20 0.38 00:40 0.15 19:15 2.73 1.56 10:10 0.000 08:55 0.066 0.008 0.008 -
10/01/2020 01:20 0.28 18:50 1.22 0.69 01:30 0.27 10:55 2.60 1.61 00:45 0.001 18:55 0.062 0.022 0.022 -
10/02/2020 01:25 0.41 11:55 1.55 0.98 01:25 0.29 11:05 2.46 1.40 00:55 0.002 11:55 0.072 0.031 0.031 -
10/03/2020 05:00 0.34 12:15 1.75 1.14 00:00 0.28 19:50 1.85 1.30 00:00 0.002 12:15 0.085 0.037 0.037 0.01
10/04/2020 22:45 0.49 10:40 1.81 1.16 02:50 0.25 10:35 1.93 1.17 22:40 0.002 10:40 0.094 0.037 0.037 0.01
10/05/2020 01:30 0.21 08:10 1.36 0.86 03:20 0.23 08:00 1.91 1.25 00:50 0.001 08:00 0.060 0.025 0.025 -
10/06/2020 00:45 0.28 18:00 1.89 1.06 02:00 0.29 17:05 1.98 1.14 00:45 0.001 18:00 0.097 0.030 0.030 -
10/07/2020 03:45 0.22 10:45 1.67 1.11 23:50 0.21 13:45 1.91 1.13 03:30 0.001 10:45 0.079 0.033 0.033 -
10/08/2020 03:20 0.41 13:40 1.98 1.17 01:05 0.14 13:35 1.83 1.02 01:05 0.001 13:35 0.101 0.031 0.031 -
10/09/2020 01:25 0.33 22:55 1.93 1.19 02:45 0.12 23:00 1.86 1.08 01:25 0.001 22:55 0.093 0.034 0.034 0.64
10/10/2020 01:10 0.32 08:25 1.49 0.84 23:40 0.26 08:05 2.33 1.22 00:55 0.002 01:55 0.054 0.021 0.021 1.04
10/11/2020 05:40 0.20 18:15 1.42 0.76 05:15 0.23 08:00 2.77 1.10 05:15 0.001 18:15 0.052 0.020 0.020 0.53
10/12/2020 23:25 0.24 05:20 1.74 0.81 21:20 0.11 05:15 2.60 1.19 21:20 0.001 05:15 0.084 0.022 0.022 -
10/13/2020 02:25 0.11 07:30 1.55 0.72 03:50 0.29 04:10 2.11 0.96 02:10 0.001 07:30 0.064 0.016 0.016 0.61
10/14/2020 04:35 0.08 10:25 1.56 0.67 06:30 0.26 07:55 2.30 0.95 03:00 0.000 08:45 0.062 0.015 0.015 -
10/15/2020 23:00 0.16 14:50 2.06 0.66 22:05 0.22 18:50 1.93 0.94 01:10 0.001 14:50 0.100 0.014 0.014 -
10/16/2020 01:15 0.21 07:10 1.20 0.58 03:35 0.11 07:00 2.43 1.04 01:00 0.001 08:40 0.041 0.011 0.011 -
10/17/2020 04:50 0.21 10:40 1.75 0.71 19:15 0.28 08:25 2.12 1.04 00:05 0.001 10:40 0.067 0.017 0.017 0.01
10/18/2020 04:10 0.11 11:55 2.01 0.67 05:50 0.31 15:30 2.28 1.07 00:35 0.001 11:55 0.086 0.016 0.016 0.03
10/19/2020 03:45 0.19 08:15 1.81 0.70 13:25 0.31 07:15 2.39 1.09 00:10 0.001 08:15 0.082 0.017 0.017 0.05
10/20/2020 04:00 0.20 23:00 1.45 0.71 01:20 0.18 08:55 1.99 0.91 05:00 0.000 09:00 0.063 0.014 0.014 -
10/21/2020 03:00 0.15 07:00 1.31 0.52 09:45 0.26 17:40 2.29 0.98 00:20 0.001 14:35 0.048 0.011 0.011 0.01
10/22/2020 00:45 0.21 09:10 2.04 0.61 04:30 0.31 15:45 2.42 0.94 00:45 0.001 09:10 0.086 0.013 0.013 -
10/23/2020 04:30 0.13 12:30 1.81 0.73 23:40 0.24 09:45 1.96 0.97 00:15 0.001 12:25 0.076 0.016 0.016 0.20
10/24/2020 01:15 0.26 09:00 1.89 0.80 04:40 0.26 21:20 2.01 1.07 01:35 0.001 08:55 0.069 0.019 0.019 0.02
10/25/2020 04:15 0.20 07:50 1.85 0.77 23:50 0.12 06:55 1.83 0.93 02:00 0.001 17:25 0.061 0.016 0.016 -
10/26/2020 02:05 0.05 07:50 1.44 0.65 04:40 0.20 09:00 2.21 0.93 01:45 0.000 07:55 0.052 0.014 0.014 -
10/27/2020 03:25 0.05 08:45 1.78 0.68 23:50 0.26 10:00 1.98 1.11 00:30 0.000 08:45 0.069 0.015 0.015 -
10/28/2020 01:30 0.20 18:55 1.56 0.70 00:10 0.29 16:50 1.97 1.01 01:30 0.001 07:00 0.062 0.015 0.015 -
10/29/2020 02:15 0.20 09:00 2.04 0.68 03:25 0.23 11:55 2.48 1.01 00:05 0.001 09:00 0.080 0.015 0.015 -
10/30/2020 00:25 0.12 22:40 1.10 0.45 07:10 0.28 13:30 2.70 1.02 00:25 0.000 13:30 0.051 0.008 0.008 0.10
10/31/2020 03:55 0.22 07:55 0.82 0.49 03:50 0.27 16:40 2.44 1.27 00:10 0.001 16:35 0.033 0.011 0.011 -
11/01/2020 00:50 0.11 14:20 1.54 0.60 22:30 0.30 12:00 2.40 1.01 00:50 0.000 15:55 0.047 0.014 0.014 -
Page 550 of 1163
30
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/02/2020 02:15 0.21 10:10 1.62 0.78 04:15 0.21 15:15 2.00 1.14 02:15 0.001 10:05 0.054 0.020 0.020 -
11/03/2020 03:20 0.27 10:05 1.97 0.88 20:15 0.10 21:30 2.01 1.13 00:35 0.001 10:05 0.077 0.024 0.024 0.83
11/04/2020 04:15 0.18 08:55 1.60 0.78 00:20 0.21 08:50 2.13 1.17 00:20 0.001 18:25 0.067 0.020 0.020 0.09
11/05/2020 06:45 0.37 14:45 1.48 0.98 06:20 0.28 01:45 2.16 1.32 04:45 0.002 20:00 0.059 0.029 0.029 0.34
11/06/2020 23:35 0.28 14:55 1.66 0.73 06:00 0.29 14:50 2.46 1.34 21:05 0.002 14:55 0.066 0.018 0.018 0.10
11/07/2020 05:10 0.12 12:30 1.70 0.77 23:55 0.28 14:25 2.50 1.35 03:55 0.001 12:35 0.074 0.021 0.021 0.07
11/08/2020 02:35 0.13 18:55 1.97 0.81 07:05 0.25 09:15 2.29 0.96 02:25 0.000 18:40 0.060 0.019 0.019 0.01
11/09/2020 04:45 0.22 06:55 2.94 0.74 05:35 0.23 19:45 2.27 0.89 04:40 0.001 19:45 0.066 0.014 0.014 0.04
11/10/2020 01:05 0.13 18:40 1.92 0.68 00:20 0.29 11:50 2.26 0.88 00:55 0.001 18:40 0.078 0.013 0.013 0.03
11/11/2020 23:25 0.34 09:40 1.18 0.62 23:45 0.29 18:00 2.35 0.88 23:25 0.001 09:40 0.055 0.010 0.010 -
11/12/2020 05:00 0.26 19:45 1.89 0.63 04:55 0.30 10:00 2.19 0.87 04:05 0.001 19:45 0.085 0.011 0.011 0.16
11/13/2020 14:05 0.35 20:20 1.82 0.70 23:25 0.27 06:55 2.16 0.90 02:50 0.002 20:20 0.093 0.013 0.013 0.38
11/14/2020 06:25 0.23 18:55 2.11 0.84 04:05 0.31 15:55 2.73 0.97 05:10 0.001 10:35 0.099 0.020 0.020 0.47
11/15/2020 06:30 0.28 09:10 1.77 1.05 02:25 0.14 20:20 1.93 1.14 06:25 0.001 09:10 0.070 0.030 0.030 0.19
11/16/2020 04:35 0.25 09:35 1.56 0.84 04:55 0.22 09:30 2.11 0.88 04:30 0.001 17:50 0.067 0.017 0.017 0.31
11/17/2020 00:00 0.29 09:45 1.83 0.96 05:05 0.21 21:45 2.69 1.01 00:00 0.002 12:45 0.065 0.023 0.023 0.20
11/18/2020 04:50 0.20 17:20 1.65 0.88 02:35 0.19 16:20 2.69 1.01 04:30 0.000 16:20 0.068 0.023 0.023 0.30
11/19/2020 02:20 0.21 11:25 1.38 0.67 23:35 0.25 17:55 2.40 1.21 01:35 0.001 13:10 0.070 0.017 0.017 0.50
11/20/2020 22:50 0.23 10:05 1.42 0.52 11:00 0.13 13:50 2.46 1.37 02:30 0.001 10:05 0.074 0.014 0.014 0.01
11/21/2020 06:15 0.26 09:25 1.47 0.60 02:40 0.24 12:25 2.54 1.63 02:40 0.001 09:25 0.087 0.019 0.019 -
11/22/2020 04:30 0.17 16:20 1.18 0.55 06:45 0.35 11:20 2.67 1.51 03:05 0.001 16:15 0.062 0.017 0.017 0.21
11/23/2020 03:10 0.24 19:20 1.22 0.58 22:30 0.27 09:05 2.43 1.40 01:30 0.001 19:20 0.059 0.016 0.016 0.14
11/24/2020 04:10 0.16 07:10 1.32 0.47 00:05 0.30 08:10 2.57 1.37 00:05 0.001 07:10 0.066 0.011 0.011 0.21
11/25/2020 04:50 0.21 09:25 2.10 0.63 04:55 0.45 09:20 2.78 1.17 01:35 0.001 09:25 0.087 0.014 0.014 0.05
11/26/2020 01:30 0.20 10:55 1.44 0.65 04:15 0.37 15:10 2.66 1.52 01:05 0.001 10:50 0.085 0.023 0.023 0.02
11/27/2020 00:40 0.12 10:20 1.24 0.62 04:55 0.54 10:25 2.67 1.78 00:40 0.001 10:20 0.071 0.022 0.022 -
11/28/2020 22:20 0.21 19:55 1.25 0.65 03:10 0.54 11:35 2.72 1.81 01:50 0.002 11:45 0.063 0.023 0.023 0.05
11/29/2020 01:50 0.19 11:55 1.37 0.74 05:25 0.49 12:40 2.91 1.77 00:25 0.002 11:10 0.082 0.030 0.030 -
11/30/2020 00:05 0.21 22:30 1.97 0.73 23:15 0.37 22:20 2.78 1.82 00:05 0.002 12:05 0.073 0.026 0.026 0.36
12/01/2020 02:45 0.19 20:05 1.46 0.76 03:50 0.34 11:40 2.25 1.52 02:40 0.001 19:15 0.063 0.025 0.025 -
12/02/2020 00:45 0.27 14:55 1.73 0.79 04:50 0.28 20:05 2.10 1.08 00:45 0.001 20:10 0.063 0.018 0.018 0.01
12/03/2020 02:25 0.31 10:10 1.43 0.78 23:10 0.38 18:25 2.05 1.49 00:50 0.003 10:10 0.060 0.023 0.023 -
12/04/2020 08:00 0.32 00:45 0.97 0.59 03:45 0.09 09:25 2.07 1.33 03:45 0.001 07:45 0.034 0.012 0.012 -
12/05/2020 03:30 0.29 01:25 0.96 0.48 03:30 0.33 09:40 2.34 1.39 03:05 0.001 10:20 0.032 0.011 0.011 0.03
12/06/2020 16:00 0.25 18:20 0.90 0.53 06:45 0.36 09:20 2.23 1.41 15:50 0.001 16:40 0.034 0.013 0.013 0.03
12/07/2020 23:55 0.10 01:50 0.92 0.58 16:20 0.29 18:35 2.27 1.14 23:55 0.000 06:05 0.031 0.011 0.011 -
12/08/2020 00:00 0.07 10:00 0.87 0.48 04:30 0.21 06:40 2.36 0.71 00:00 0.000 09:55 0.033 0.006 0.006 0.87
12/09/2020 04:45 0.22 13:15 0.93 0.47 01:40 0.24 13:55 2.19 0.83 01:10 0.001 13:50 0.025 0.006 0.006 0.17
12/10/2020 04:20 0.21 17:05 0.83 0.44 05:45 0.29 20:30 2.58 0.96 02:35 0.001 18:55 0.034 0.007 0.007 0.07
12/11/2020 23:55 0.21 09:15 0.94 0.45 08:50 0.26 11:50 2.08 0.65 00:45 0.001 09:15 0.029 0.005 0.005 0.02
12/12/2020 03:50 0.11 10:10 1.02 0.37 23:30 0.22 10:10 2.42 0.81 00:00 0.001 10:10 0.051 0.005 0.005 0.01
12/13/2020 05:25 0.15 10:30 0.93 0.49 00:00 0.26 11:10 2.36 0.73 00:00 0.001 11:10 0.036 0.006 0.006 0.24
12/14/2020 03:30 0.16 12:30 0.73 0.39 17:35 0.14 12:45 2.09 0.62 03:25 0.000 11:55 0.022 0.004 0.004 0.05
12/15/2020 03:05 0.10 16:45 0.79 0.48 03:50 0.19 09:15 1.89 0.72 03:05 0.000 09:10 0.022 0.006 0.006 0.58
12/16/2020 05:50 0.14 10:40 0.97 0.40 13:45 0.12 08:00 2.01 0.74 00:15 0.001 11:35 0.019 0.005 0.005 0.39
12/17/2020 03:30 0.12 08:15 0.77 0.36 14:20 0.23 15:40 2.43 0.78 00:50 0.000 08:15 0.022 0.004 0.004 0.08
12/18/2020 00:15 0.06 08:45 0.67 0.37 04:10 0.11 07:05 1.97 0.75 00:10 0.000 08:45 0.018 0.004 0.004 0.25
12/19/2020 04:00 0.12 16:55 1.07 0.45 01:05 0.23 22:30 2.39 0.87 00:40 0.001 18:00 0.034 0.007 0.007 0.37
12/20/2020 03:50 0.13 17:30 0.85 0.42 06:20 0.32 17:35 2.48 1.06 00:45 0.001 17:30 0.040 0.007 0.007 0.04
12/21/2020 00:15 0.33 11:30 0.87 0.57 23:10 0.45 16:20 2.75 1.66 00:10 0.002 11:30 0.043 0.017 0.017 1.07
12/22/2020 04:50 0.12 07:00 0.87 0.54 23:25 0.34 19:50 2.48 1.43 03:20 0.000 11:30 0.040 0.013 0.013 -
12/23/2020 03:15 0.19 06:55 0.79 0.52 02:20 0.32 19:50 2.49 1.39 00:25 0.001 19:55 0.031 0.012 0.012 -
12/24/2020 02:55 0.20 17:50 1.77 0.55 23:45 0.22 10:30 2.79 1.29 02:05 0.001 10:40 0.081 0.014 0.014 -
12/25/2020 03:40 0.21 14:55 1.24 0.53 05:25 0.12 16:00 2.34 0.91 00:45 0.001 14:55 0.058 0.009 0.009 0.49
12/26/2020 04:00 0.19 11:55 0.88 0.47 01:45 0.21 12:30 2.32 0.88 00:25 0.001 11:55 0.036 0.007 0.007 0.02
12/27/2020 02:20 0.28 11:10 0.91 0.42 16:15 0.43 09:45 2.18 0.92 00:30 0.002 11:10 0.030 0.006 0.006 0.13
12/28/2020 08:30 0.25 11:20 0.92 0.42 05:20 0.46 19:10 2.09 1.03 00:25 0.002 10:35 0.032 0.006 0.006 -
12/29/2020 02:10 0.33 21:30 0.97 0.45 03:45 0.27 08:45 1.78 0.99 03:40 0.001 21:30 0.029 0.006 0.006 0.14
12/30/2020 15:45 0.39 09:45 1.05 0.58 22:45 0.41 21:35 1.76 0.86 11:30 0.003 09:45 0.035 0.008 0.008 0.78
12/31/2020 10:10 0.37 15:55 0.77 0.54 02:20 0.44 09:55 2.54 0.86 10:10 0.003 11:35 0.018 0.007 0.007 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 3.650 30.65
Average 0.78 1.07 0.018
Page 551 of 1163
31
Page 552 of 1163
32
AUB_A13_71085
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced flow changes and backwater conditions during the monitoring period. An ADS field crew removed debris buildup
from the sensors during a site visit on October 30th. A confirmation was taken which verified the sensors are working properly.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.05 0.93 0.045
Minimum 0.67 0.22 0.005
Maximum 5.60 1.57 0.129
Min Time 01/23/2021 4:00:00 AM 12/10/2020 4:00:00 AM 01/23/2021 4:00:00 AM
Max Time 12/10/2020 12:00:00 PM 02/11/2021 6:00:00 PM 10/10/2020 11:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.284
VFINAL (ft/s) 99.284
QFINAL (MGD - Total MG) 99.284
Pipe Round (8 in H)
Silt 0.00 (in)
Page 553 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Hydrograph Report
AUB_A13_71085
Page 554 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Scattergraph Report
AUB_A13_71085
Page 555 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A13_71085Pipe: Round (8 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 05:50 0.76 15:30 2.68 1.82 03:15 0.56 15:30 1.21 0.90 05:50 0.006 15:30 0.080 0.038 0.038 0.51
01/02/2021 04:45 0.68 11:55 2.79 1.88 05:00 0.53 17:30 1.28 0.97 04:40 0.005 17:30 0.088 0.044 0.044 1.69
01/03/2021 04:30 0.65 13:05 2.94 1.85 04:25 0.55 13:05 1.37 0.99 04:20 0.005 13:05 0.103 0.043 0.043 0.65
01/04/2021 03:00 0.86 18:30 2.73 1.86 02:50 0.61 18:30 1.29 1.01 02:50 0.008 18:30 0.087 0.043 0.043 0.48
01/05/2021 04:35 0.67 18:55 2.71 1.76 04:40 0.49 18:55 1.25 0.96 04:40 0.004 18:55 0.084 0.039 0.039 0.52
01/06/2021 02:55 0.82 21:25 2.57 1.79 03:00 0.57 19:10 1.21 0.95 02:55 0.007 14:00 0.073 0.038 0.038 0.22
01/07/2021 03:50 0.88 15:30 2.79 1.98 03:45 0.57 09:30 1.22 0.87 03:40 0.008 09:30 0.084 0.040 0.040 -
01/08/2021 04:00 1.39 17:25 2.94 2.10 03:55 0.35 19:05 1.15 0.79 03:55 0.009 21:45 0.077 0.039 0.039 0.22
01/09/2021 06:10 0.71 12:10 2.87 1.82 05:10 0.54 12:50 1.25 0.92 06:15 0.005 12:10 0.090 0.039 0.039 -
01/10/2021 04:35 0.73 16:20 2.78 1.84 04:45 0.55 14:40 1.20 0.91 04:30 0.006 16:20 0.082 0.039 0.039 0.07
01/11/2021 04:40 1.05 11:00 2.92 2.06 04:00 0.56 11:00 1.20 0.93 04:00 0.010 11:00 0.089 0.046 0.046 1.06
01/12/2021 04:20 1.22 18:25 2.99 2.09 04:25 0.66 18:30 1.24 0.96 04:15 0.015 18:25 0.095 0.047 0.047 2.10
01/13/2021 03:10 1.01 18:45 2.67 1.90 03:55 0.38 18:45 1.16 0.88 03:55 0.008 18:45 0.076 0.039 0.039 0.09
01/14/2021 04:00 1.08 10:20 3.02 1.95 04:00 0.58 10:20 1.34 0.93 03:55 0.011 10:20 0.105 0.042 0.042 0.01
01/15/2021 03:15 0.95 17:00 2.73 1.91 05:40 0.40 17:00 1.21 0.90 03:15 0.006 17:00 0.082 0.040 0.040 0.09
01/16/2021 06:20 0.91 11:25 2.96 1.94 05:10 0.44 11:30 1.29 0.93 05:10 0.007 11:25 0.096 0.043 0.043 -
01/17/2021 06:55 0.91 15:35 2.78 1.85 05:30 0.47 12:55 1.29 0.93 05:20 0.007 12:50 0.088 0.040 0.040 0.10
01/18/2021 04:55 0.49 14:10 2.58 1.81 04:55 0.24 09:35 1.35 0.92 04:55 0.001 09:35 0.081 0.038 0.038 -
01/19/2021 02:55 0.78 19:35 2.84 1.77 02:55 0.55 10:55 1.30 0.97 02:55 0.006 19:35 0.092 0.040 0.040 0.01
01/20/2021 04:15 0.72 20:05 2.71 1.77 04:10 0.55 20:05 1.30 0.97 04:10 0.006 20:05 0.087 0.039 0.039 -
01/21/2021 03:50 0.87 18:25 4.59 1.74 03:10 0.61 18:20 2.16 0.96 03:10 0.008 18:20 0.284 0.038 0.038 0.11
01/22/2021 03:55 0.77 10:25 2.62 1.73 01:55 0.54 18:45 1.27 0.99 03:20 0.007 18:30 0.081 0.038 0.038 -
01/23/2021 04:55 0.64 11:05 2.73 1.76 04:20 0.50 13:25 1.34 1.00 04:15 0.004 11:05 0.087 0.040 0.040 -
01/24/2021 06:05 0.90 11:20 2.73 1.83 05:55 0.62 10:50 1.31 1.03 05:55 0.009 10:50 0.087 0.043 0.043 0.16
01/25/2021 04:05 0.69 18:05 2.90 1.86 04:35 0.54 10:25 1.32 0.96 04:00 0.005 10:25 0.095 0.042 0.042 0.04
01/26/2021 03:55 1.11 08:45 3.07 1.88 04:00 0.46 08:45 1.32 0.90 03:55 0.009 08:45 0.105 0.039 0.039 -
01/27/2021 05:40 1.07 18:55 2.70 1.87 03:20 0.41 19:20 1.26 0.91 03:10 0.009 19:20 0.079 0.039 0.039 0.14
01/28/2021 03:45 1.01 17:45 2.72 1.87 04:05 0.50 19:15 1.27 0.94 02:35 0.010 17:50 0.081 0.040 0.040 0.24
01/29/2021 03:45 0.81 17:35 2.84 1.81 03:15 0.57 11:25 1.23 0.95 03:40 0.007 17:35 0.087 0.039 0.039 0.03
01/30/2021 02:50 0.83 11:10 2.78 1.88 06:10 0.39 16:20 1.29 0.96 02:45 0.008 11:10 0.088 0.042 0.042 0.07
01/31/2021 04:45 0.83 19:45 2.91 1.79 02:45 0.52 11:45 1.31 0.97 02:45 0.007 19:45 0.094 0.041 0.041 0.12
02/01/2021 04:40 0.78 18:55 2.97 1.82 04:35 0.57 18:55 1.39 1.04 04:40 0.006 18:55 0.106 0.043 0.043 0.82
02/02/2021 04:20 0.67 18:40 2.79 1.81 04:20 0.54 18:40 1.40 1.02 04:05 0.005 18:40 0.098 0.042 0.042 0.31
02/03/2021 04:05 0.82 18:05 2.83 1.73 03:45 0.51 19:55 1.43 1.06 03:35 0.007 18:05 0.095 0.041 0.041 0.06
02/04/2021 03:05 0.73 18:10 2.70 1.83 04:20 0.60 20:20 1.39 1.01 03:05 0.006 18:10 0.084 0.043 0.043 0.07
02/05/2021 04:20 0.93 17:10 2.70 1.80 04:20 0.49 20:20 1.28 0.93 04:20 0.007 18:40 0.075 0.038 0.038 0.01
02/06/2021 04:00 0.80 09:45 2.82 1.75 05:00 0.63 12:20 1.39 1.04 03:55 0.008 09:45 0.092 0.041 0.041 0.01
02/07/2021 04:10 0.54 13:45 2.77 1.73 05:40 0.58 12:05 1.34 1.03 04:10 0.005 12:05 0.091 0.041 0.041 -
02/08/2021 04:35 0.81 10:35 2.54 1.71 04:25 0.60 12:15 1.35 1.08 04:25 0.008 10:35 0.081 0.041 0.041 -
02/09/2021 04:45 0.70 18:05 2.55 1.69 04:00 0.63 18:05 1.32 1.06 04:45 0.006 18:05 0.081 0.040 0.040 -
02/10/2021 02:10 0.77 18:20 2.63 1.68 02:10 0.66 18:25 1.34 1.05 02:10 0.007 18:20 0.086 0.039 0.039 -
02/11/2021 04:15 0.73 17:25 2.61 1.67 04:15 0.61 17:25 1.75 1.11 04:15 0.006 17:25 0.112 0.041 0.041 -
02/12/2021 04:30 0.69 18:25 2.80 1.71 02:55 0.68 09:10 1.52 1.18 04:25 0.007 18:25 0.103 0.045 0.045 -
02/13/2021 04:45 0.75 16:45 2.78 1.74 04:05 0.62 16:45 1.50 1.19 04:40 0.007 16:45 0.104 0.048 0.048 0.08
02/14/2021 04:00 0.78 11:30 2.81 1.77 03:20 0.71 19:10 1.51 1.22 03:55 0.008 11:35 0.105 0.050 0.050 0.71
02/15/2021 04:25 1.00 10:50 2.85 1.88 23:55 0.98 13:10 1.58 1.29 04:25 0.017 10:50 0.111 0.054 0.054 0.78
02/16/2021 02:40 0.88 11:10 2.84 1.73 04:20 0.74 20:15 1.57 1.21 04:20 0.010 11:10 0.098 0.046 0.046 0.07
02/17/2021 03:55 0.65 18:50 2.58 1.71 03:40 0.61 20:15 1.34 1.03 03:55 0.005 18:50 0.083 0.039 0.039 -
02/18/2021 03:15 0.91 18:30 2.52 1.79 04:00 0.72 20:10 1.33 1.09 03:15 0.011 20:35 0.079 0.043 0.043 0.09
02/19/2021 04:10 0.77 12:30 2.41 1.69 03:05 0.61 19:10 1.35 1.05 04:10 0.008 19:10 0.076 0.039 0.039 0.17
02/20/2021 03:50 0.74 10:05 2.70 1.70 05:20 0.61 11:40 1.37 1.06 03:30 0.007 10:05 0.088 0.041 0.041 0.07
02/21/2021 04:00 0.77 19:10 2.68 1.81 06:05 0.61 09:25 1.36 1.05 04:00 0.008 19:10 0.090 0.044 0.044 0.42
02/22/2021 03:45 0.82 21:30 2.59 1.78 03:15 0.59 10:50 1.31 1.00 03:45 0.007 10:50 0.080 0.040 0.040 0.98
02/23/2021 04:35 0.84 18:10 2.63 1.82 04:30 0.48 18:10 1.29 1.00 04:30 0.006 18:10 0.083 0.041 0.041 0.27
02/24/2021 03:30 0.73 12:30 2.49 1.72 03:25 0.55 12:30 1.27 1.03 03:25 0.006 12:30 0.076 0.039 0.039 -
02/25/2021 02:05 0.80 19:10 2.47 1.68 02:55 0.57 19:45 1.45 1.05 02:00 0.007 19:10 0.085 0.039 0.039 0.18
02/26/2021 04:00 0.77 17:35 2.48 1.68 04:05 0.59 10:25 1.31 1.03 04:05 0.006 10:25 0.077 0.038 0.038 0.10
02/27/2021 05:25 0.79 20:10 2.92 1.82 03:05 0.56 11:15 1.45 1.01 05:25 0.007 11:15 0.092 0.042 0.042 0.02
02/28/2021 03:40 0.56 20:05 2.68 1.75 04:00 0.53 18:25 1.28 0.98 03:35 0.004 20:05 0.085 0.040 0.040 0.02
03/01/2021 03:30 0.76 19:25 2.57 1.68 04:45 0.49 20:05 1.32 0.98 02:45 0.006 20:10 0.080 0.037 0.037 -
03/02/2021 03:15 0.82 20:15 2.73 1.75 03:20 0.48 19:35 1.32 0.97 03:10 0.006 20:15 0.090 0.038 0.038 -
03/03/2021 01:45 0.85 19:25 2.72 1.79 01:45 0.43 09:35 1.28 0.99 01:45 0.005 19:25 0.086 0.040 0.040 -
03/04/2021 03:10 0.84 20:55 2.97 1.99 05:00 0.52 07:30 1.16 0.87 03:00 0.007 20:55 0.087 0.042 0.042 0.20
03/05/2021 04:10 1.04 11:50 2.66 1.80 03:20 0.43 11:00 1.22 0.89 03:20 0.008 12:20 0.077 0.036 0.036 0.05
03/06/2021 04:40 0.78 11:30 2.77 1.82 04:45 0.40 11:35 1.24 0.95 04:30 0.005 11:30 0.085 0.040 0.040 -
03/07/2021 04:15 0.94 11:55 2.89 1.87 04:30 0.47 12:00 1.31 0.95 04:25 0.007 11:55 0.096 0.042 0.042 0.04
03/08/2021 03:15 0.84 10:50 2.70 1.79 02:30 0.43 18:25 1.27 0.92 03:20 0.005 10:50 0.082 0.038 0.038 -
03/09/2021 04:05 0.89 18:25 3.09 1.85 04:00 0.48 18:25 1.34 0.94 03:25 0.007 18:25 0.108 0.041 0.041 0.01
03/10/2021 04:05 0.96 20:15 2.77 1.89 03:45 0.40 20:15 1.29 0.94 03:20 0.007 20:15 0.090 0.041 0.041 -
03/11/2021 03:35 0.89 18:30 2.80 1.91 03:20 0.45 21:00 1.42 0.96 03:25 0.006 21:00 0.086 0.043 0.043 -
Page 556 of 1163
36
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:20 0.98 12:25 2.76 1.93 04:05 0.52 17:00 1.20 0.91 04:05 0.008 16:55 0.080 0.041 0.041 -
03/13/2021 05:55 0.86 10:40 2.80 1.89 04:05 0.49 10:40 1.22 0.90 06:00 0.006 10:40 0.086 0.040 0.040 -
03/14/2021 06:20 0.98 11:15 2.84 1.96 05:45 0.45 17:05 1.18 0.89 03:10 0.008 11:15 0.082 0.042 0.042 0.30
03/15/2021 02:05 1.06 09:45 2.70 1.91 03:20 0.38 20:15 1.22 0.88 03:20 0.007 09:45 0.079 0.039 0.039 -
03/16/2021 03:10 0.82 19:10 2.94 1.88 03:15 0.46 15:10 1.22 0.90 03:05 0.006 19:10 0.091 0.039 0.039 -
03/17/2021 02:30 0.88 09:15 2.73 1.87 02:20 0.45 17:25 1.17 0.88 02:20 0.007 09:15 0.078 0.038 0.038 -
03/18/2021 03:20 0.84 20:50 2.69 1.86 02:55 0.47 16:30 1.16 0.85 02:55 0.006 16:30 0.076 0.037 0.037 0.11
03/19/2021 03:35 0.92 14:00 2.87 1.96 03:35 0.52 14:00 1.21 0.87 03:30 0.008 14:00 0.088 0.040 0.040 0.03
03/20/2021 05:45 1.20 16:35 2.75 1.94 04:10 0.29 10:05 1.23 0.89 03:10 0.007 10:05 0.083 0.041 0.041 0.17
03/21/2021 04:10 0.84 12:35 2.99 1.93 04:15 0.44 12:35 1.24 0.90 03:55 0.006 12:35 0.096 0.042 0.042 0.07
03/22/2021 02:25 0.90 19:25 2.82 1.90 00:15 0.48 10:55 1.21 0.90 01:40 0.007 19:25 0.086 0.040 0.040 0.11
03/23/2021 02:30 0.93 19:50 2.91 1.94 03:00 0.38 19:50 1.25 0.90 03:05 0.006 19:50 0.093 0.041 0.041 -
03/24/2021 03:20 1.13 19:20 2.81 1.93 03:15 0.53 19:20 1.20 0.90 01:50 0.011 19:20 0.085 0.040 0.040 0.34
03/25/2021 03:00 0.94 09:10 2.73 1.90 03:05 0.56 16:50 1.22 0.90 03:00 0.008 19:40 0.082 0.039 0.039 0.27
03/26/2021 01:55 0.93 10:00 2.59 1.85 01:55 0.51 17:10 1.28 0.89 00:25 0.008 18:30 0.075 0.038 0.038 -
03/27/2021 03:00 0.86 11:20 2.82 1.94 03:05 0.67 12:00 1.34 1.01 02:55 0.009 11:20 0.092 0.046 0.046 -
03/28/2021 03:35 1.00 11:25 2.89 1.96 03:30 0.50 13:40 1.52 1.04 03:30 0.008 13:40 0.110 0.049 0.049 0.37
03/29/2021 02:10 0.81 18:05 2.79 1.84 02:20 0.61 07:25 1.57 1.24 02:15 0.007 18:05 0.110 0.053 0.053 -
03/30/2021 03:30 1.14 17:20 2.83 2.03 02:30 0.64 20:25 1.48 1.03 03:00 0.013 17:20 0.094 0.049 0.049 -
03/31/2021 03:10 1.04 19:30 2.93 2.00 03:15 0.43 19:30 1.27 0.88 03:15 0.007 19:30 0.095 0.042 0.042 -
04/01/2021 03:05 0.92 20:30 2.79 1.94 03:05 0.41 20:30 1.30 0.89 02:40 0.006 20:30 0.091 0.041 0.041 -
04/02/2021 02:20 0.97 13:05 2.61 1.85 03:15 0.47 18:00 1.23 0.91 02:10 0.008 18:00 0.076 0.039 0.039 -
04/03/2021 02:10 0.99 08:35 2.76 1.87 01:10 0.51 08:35 1.33 0.95 03:30 0.008 08:35 0.092 0.041 0.041 -
04/04/2021 04:05 0.96 20:45 2.67 1.84 04:05 0.54 20:45 1.36 0.93 04:05 0.008 20:45 0.089 0.040 0.040 -
04/05/2021 03:15 0.90 19:25 2.94 1.85 03:20 0.47 19:25 1.35 0.94 03:10 0.007 19:25 0.101 0.040 0.040 -
04/06/2021 02:45 0.92 09:00 2.69 1.77 01:05 0.47 09:00 1.25 0.89 01:05 0.008 09:00 0.083 0.036 0.036 -
04/07/2021 02:30 0.90 19:25 2.85 1.81 02:55 0.48 19:25 1.33 0.91 02:25 0.007 19:25 0.096 0.038 0.038 0.22
04/08/2021 03:00 0.89 18:15 2.82 1.79 03:00 0.48 18:15 1.33 0.92 02:55 0.007 18:15 0.094 0.037 0.037 -
04/09/2021 02:00 0.88 13:40 2.54 1.79 02:00 0.50 18:40 1.19 0.90 01:55 0.007 13:40 0.073 0.036 0.036 0.03
04/10/2021 02:25 0.95 08:30 2.81 1.83 02:25 0.42 15:10 1.24 0.91 02:25 0.006 08:30 0.086 0.039 0.039 0.02
04/11/2021 03:40 0.86 10:05 2.95 1.83 03:40 0.46 10:05 1.36 0.93 03:30 0.006 10:05 0.103 0.040 0.040 -
04/12/2021 01:55 0.88 09:40 3.11 1.83 02:00 0.48 09:40 1.22 0.92 01:40 0.007 09:40 0.099 0.039 0.039 -
04/13/2021 02:25 0.94 20:10 2.95 1.85 02:25 0.49 20:15 1.26 0.90 02:25 0.007 20:10 0.094 0.038 0.038 -
04/14/2021 03:00 0.94 19:50 2.72 1.89 02:45 0.45 11:30 1.23 0.91 02:40 0.007 11:30 0.082 0.040 0.040 -
09/23/2020 23:20 2.04 12:35 3.49 2.84 23:20 0.64 12:30 1.27 1.02 23:20 0.029 12:35 0.120 0.075 0.039 -
09/24/2020 03:25 1.61 19:40 3.51 2.71 03:15 0.37 08:55 1.14 0.84 03:15 0.012 08:55 0.104 0.059 0.059 -
09/25/2020 02:55 1.86 13:55 4.30 2.74 03:10 0.33 13:55 1.35 0.82 03:10 0.013 13:55 0.167 0.059 0.059 -
09/26/2020 03:00 1.79 09:40 3.66 2.77 03:05 0.37 09:05 1.09 0.83 03:00 0.014 09:40 0.110 0.060 0.060 -
09/27/2020 04:35 1.89 09:10 3.79 2.83 03:40 0.40 09:55 1.18 0.85 04:35 0.018 09:15 0.123 0.064 0.064 -
09/28/2020 03:05 2.02 19:30 3.66 2.84 01:55 0.49 19:30 1.18 0.87 01:55 0.022 19:30 0.119 0.065 0.065 -
09/29/2020 03:20 1.79 18:30 3.75 2.73 02:20 0.39 18:30 1.21 0.84 02:20 0.015 18:30 0.126 0.060 0.060 -
09/30/2020 02:40 1.70 18:45 3.54 2.71 02:40 0.36 18:45 1.12 0.81 02:40 0.013 18:45 0.108 0.058 0.058 -
10/01/2020 04:00 1.88 18:55 3.62 2.73 02:30 0.34 18:50 1.24 0.84 02:35 0.015 18:50 0.123 0.060 0.060 -
10/02/2020 01:15 1.96 12:15 3.43 2.80 01:15 0.56 12:15 1.17 0.88 01:15 0.024 12:15 0.108 0.063 0.063 -
10/03/2020 05:15 2.12 10:00 3.30 2.76 02:35 0.39 13:30 1.18 0.86 02:35 0.022 17:00 0.104 0.061 0.061 0.01
10/04/2020 04:05 2.06 18:45 3.71 2.84 04:05 0.37 10:50 1.21 0.88 04:05 0.017 18:45 0.122 0.066 0.066 0.01
10/05/2020 02:50 2.02 09:30 3.60 2.76 02:55 0.49 09:30 1.16 0.88 02:55 0.022 09:30 0.114 0.063 0.063 -
10/06/2020 02:05 1.81 19:00 3.69 2.72 01:55 0.31 19:00 1.18 0.83 02:10 0.012 19:00 0.119 0.060 0.060 -
10/07/2020 02:50 1.82 11:35 3.54 2.66 03:10 0.27 10:55 1.10 0.83 03:10 0.011 11:35 0.106 0.057 0.057 -
10/08/2020 01:40 1.73 19:15 3.40 2.62 03:30 0.34 08:45 1.07 0.78 01:30 0.014 19:15 0.096 0.053 0.053 -
10/09/2020 00:50 2.02 14:45 3.68 2.92 00:30 0.40 17:05 1.40 0.98 00:30 0.019 17:05 0.141 0.076 0.076 0.64
10/10/2020 01:05 2.26 11:55 3.92 3.02 01:00 0.68 11:30 1.40 1.04 01:00 0.036 11:50 0.152 0.083 0.083 1.04
10/11/2020 03:25 1.98 10:50 3.72 2.85 03:55 0.45 08:45 1.41 1.00 03:25 0.021 08:45 0.135 0.076 0.076 0.53
10/12/2020 00:55 1.95 20:15 3.63 2.82 02:20 0.48 13:15 1.48 1.04 01:10 0.023 15:20 0.146 0.077 0.077 -
10/13/2020 01:15 1.90 17:00 3.94 2.78 02:35 0.63 17:05 1.49 1.02 01:15 0.029 16:35 0.147 0.073 0.073 0.61
10/14/2020 01:40 1.84 19:15 3.51 2.77 01:25 0.41 19:10 1.13 0.82 01:20 0.017 19:15 0.108 0.059 0.059 -
10/15/2020 03:20 1.83 19:05 3.71 2.79 03:20 0.37 19:05 1.18 0.84 03:20 0.014 19:05 0.121 0.062 0.062 -
10/16/2020 02:55 1.84 10:15 3.44 2.70 02:50 0.40 10:15 1.10 0.80 02:50 0.016 10:15 0.101 0.056 0.056 -
10/17/2020 02:45 1.94 10:40 3.51 2.76 02:40 0.48 09:40 1.22 0.88 02:40 0.020 09:40 0.116 0.064 0.064 0.01
10/18/2020 03:15 1.72 11:50 3.77 2.78 03:10 0.40 11:55 1.26 0.86 03:10 0.014 11:55 0.132 0.064 0.064 0.03
10/19/2020 03:40 1.73 19:00 3.67 2.73 03:35 0.41 19:00 1.22 0.85 03:35 0.015 19:00 0.123 0.061 0.061 0.05
10/20/2020 03:40 1.70 18:00 3.64 2.79 02:45 0.40 18:00 1.11 0.83 02:45 0.014 18:00 0.110 0.061 0.061 -
10/21/2020 02:30 1.75 15:20 3.50 2.72 02:00 0.44 20:10 1.08 0.81 02:00 0.016 15:20 0.100 0.057 0.057 0.01
10/22/2020 03:15 1.89 19:55 3.55 2.76 01:25 0.41 19:55 1.18 0.86 01:25 0.017 19:55 0.114 0.062 0.062 -
10/23/2020 02:25 1.74 20:35 3.52 2.74 03:55 0.37 20:35 1.11 0.82 03:50 0.014 20:35 0.106 0.059 0.059 0.20
10/24/2020 03:35 1.88 13:10 3.73 2.80 04:25 0.45 13:10 1.22 0.85 03:35 0.018 13:10 0.126 0.063 0.063 0.02
10/25/2020 03:10 1.81 14:35 3.14 2.58 05:40 0.37 17:05 0.87 0.63 03:15 0.016 09:30 0.070 0.041 0.041 -
10/26/2020 02:00 2.17 11:25 3.58 2.75 01:50 0.25 20:15 0.89 0.61 01:50 0.013 11:25 0.086 0.043 0.043 -
10/27/2020 02:15 2.28 09:35 3.34 2.70 02:20 0.24 09:35 0.85 0.59 02:20 0.013 09:35 0.076 0.040 0.040 -
10/28/2020 02:50 2.17 05:45 3.32 2.62 02:45 0.24 09:15 0.86 0.58 02:45 0.012 20:00 0.075 0.038 0.038 -
10/29/2020 03:10 1.95 20:40 3.19 2.73 04:00 0.19 11:30 0.80 0.58 03:10 0.009 09:00 0.063 0.040 0.040 -
10/30/2020 23:20 1.14 09:45 3.18 2.26 03:15 0.31 19:55 1.28 0.82 23:20 0.014 09:45 0.091 0.041 0.041 0.10
10/31/2020 04:00 0.69 09:45 2.81 1.76 04:05 0.51 10:20 1.32 0.95 03:55 0.005 11:30 0.092 0.039 0.039 -
11/01/2020 04:45 0.55 09:55 2.88 1.90 04:00 0.45 11:35 1.23 0.92 03:50 0.004 10:40 0.087 0.042 0.042 -
Page 557 of 1163
37
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/02/2020 03:45 1.00 20:20 2.88 1.93 04:00 0.52 20:25 1.19 0.90 03:15 0.009 20:25 0.087 0.041 0.041 -
11/03/2020 03:40 0.87 10:30 2.90 1.92 04:20 0.35 10:30 1.25 0.89 03:40 0.005 10:30 0.093 0.041 0.041 0.83
11/04/2020 02:45 1.14 09:10 2.81 1.88 02:30 0.60 19:55 1.24 0.93 02:25 0.012 09:10 0.086 0.040 0.040 0.09
11/05/2020 03:35 0.74 12:30 2.81 1.77 02:30 0.54 12:30 1.32 0.93 03:30 0.006 12:30 0.093 0.037 0.037 0.34
11/06/2020 01:45 0.97 19:10 2.72 1.84 01:45 0.60 19:15 1.24 0.95 01:45 0.009 19:10 0.083 0.039 0.039 0.10
11/07/2020 03:00 1.03 11:20 2.95 1.85 03:05 0.51 08:50 1.44 1.03 02:55 0.009 11:20 0.103 0.044 0.044 0.07
11/08/2020 04:00 0.84 13:55 2.89 1.91 05:15 0.35 17:45 1.37 1.03 05:00 0.007 13:55 0.100 0.046 0.046 0.01
11/09/2020 03:50 0.72 11:30 2.80 1.87 03:35 0.47 11:30 1.22 0.91 03:35 0.005 11:30 0.086 0.040 0.040 0.04
11/10/2020 03:35 0.75 09:05 2.61 1.86 03:40 0.50 16:55 1.49 0.95 03:35 0.005 16:55 0.081 0.041 0.041 0.03
11/11/2020 04:10 0.83 20:25 2.79 1.88 04:10 0.52 10:50 1.21 0.88 03:10 0.007 20:25 0.077 0.038 0.038 -
11/12/2020 03:50 1.17 10:05 2.95 2.02 03:50 0.34 19:05 1.63 0.85 03:50 0.007 10:05 0.082 0.040 0.040 0.16
11/13/2020 04:05 0.90 19:00 2.56 1.80 01:35 0.58 18:55 1.28 0.97 04:10 0.008 19:00 0.080 0.039 0.039 0.38
11/14/2020 04:20 0.78 11:20 2.74 1.82 05:05 0.54 17:25 1.30 0.96 04:15 0.006 17:25 0.084 0.041 0.041 0.47
11/15/2020 05:20 0.73 11:05 2.70 1.85 04:00 0.55 11:05 1.34 1.00 04:40 0.006 11:05 0.089 0.044 0.044 0.19
11/16/2020 04:45 0.81 15:45 2.58 1.78 04:45 0.58 12:55 1.26 0.97 04:35 0.007 15:45 0.076 0.039 0.039 0.31
11/17/2020 03:15 0.76 19:05 2.63 1.82 02:50 0.56 16:00 1.32 1.00 02:55 0.006 16:00 0.084 0.042 0.042 0.20
11/18/2020 03:35 0.87 21:00 2.62 1.80 02:15 0.59 17:25 1.35 0.98 02:15 0.008 17:25 0.084 0.041 0.041 0.30
11/19/2020 02:30 1.23 12:35 2.73 1.90 02:30 0.74 21:20 1.26 1.00 02:30 0.016 12:35 0.084 0.043 0.043 0.50
11/20/2020 04:30 0.87 19:40 2.82 1.77 04:25 0.59 19:40 1.35 1.00 04:25 0.008 19:40 0.096 0.040 0.040 0.01
11/21/2020 05:35 0.84 12:45 2.88 1.81 07:35 0.53 10:30 1.42 1.03 03:35 0.008 10:30 0.102 0.043 0.043 -
11/22/2020 05:45 0.69 11:55 2.87 1.87 02:45 0.54 11:55 1.36 0.99 05:45 0.005 11:55 0.099 0.043 0.043 0.21
11/23/2020 04:25 0.68 15:25 2.60 1.82 04:25 0.51 12:55 1.28 0.94 04:20 0.005 15:25 0.075 0.040 0.040 0.14
11/24/2020 04:50 0.67 17:00 2.76 1.81 04:50 0.51 17:50 1.25 0.98 04:40 0.005 17:00 0.085 0.041 0.041 0.21
11/25/2020 03:35 0.71 18:30 2.65 1.82 03:35 0.61 18:30 1.40 1.01 03:35 0.006 18:30 0.091 0.042 0.042 0.05
11/26/2020 05:05 0.84 11:05 2.83 1.82 04:35 0.69 11:10 1.47 1.05 04:25 0.009 11:10 0.105 0.045 0.045 0.02
11/27/2020 04:20 0.63 18:20 2.58 1.74 04:05 0.60 11:30 1.28 1.00 04:05 0.005 18:20 0.078 0.040 0.040 -
11/28/2020 04:45 0.84 12:10 2.63 1.79 02:25 0.64 12:10 1.28 1.00 04:40 0.008 12:10 0.083 0.041 0.041 0.05
11/29/2020 05:00 0.68 14:20 2.79 1.86 05:00 0.50 14:20 1.35 1.02 05:00 0.005 14:20 0.095 0.045 0.045 -
11/30/2020 02:45 0.89 13:35 2.66 1.83 02:40 0.72 13:35 1.30 1.02 02:35 0.010 13:35 0.086 0.042 0.042 0.36
12/01/2020 03:20 0.88 19:10 2.61 1.77 03:05 0.59 19:10 1.28 0.99 03:05 0.008 19:10 0.082 0.039 0.039 -
12/02/2020 04:15 0.73 14:55 2.82 1.74 04:15 0.63 14:55 1.34 1.01 04:20 0.006 14:55 0.095 0.039 0.039 0.01
12/03/2020 04:15 0.72 17:35 2.53 1.77 03:40 0.62 17:35 1.31 1.02 03:40 0.006 17:35 0.080 0.041 0.041 -
12/04/2020 02:50 0.74 11:35 2.62 1.79 04:25 0.53 11:35 1.28 1.00 02:45 0.007 11:35 0.082 0.040 0.040 -
12/05/2020 04:40 0.65 21:40 4.43 2.01 23:40 0.38 11:40 1.32 0.92 04:50 0.004 11:40 0.084 0.041 0.041 0.03
12/06/2020 04:35 2.96 14:35 4.82 3.85 05:05 0.28 14:40 0.71 0.49 02:15 0.022 14:40 0.101 0.054 0.054 0.03
12/07/2020 02:30 2.97 18:35 4.61 3.75 02:30 0.19 18:35 0.75 0.49 02:30 0.014 18:35 0.101 0.053 0.053 -
12/08/2020 03:55 2.93 19:15 4.53 3.77 03:15 0.20 13:05 0.63 0.45 03:15 0.015 13:05 0.079 0.048 0.048 0.87
12/09/2020 04:30 2.88 10:30 4.53 3.72 04:40 0.27 10:30 0.69 0.46 04:40 0.020 10:30 0.091 0.048 0.048 0.17
12/10/2020 23:30 1.40 13:55 6.19 3.30 04:35 0.20 18:55 1.30 0.66 04:35 0.014 11:55 0.097 0.048 0.048 0.07
12/11/2020 03:35 0.70 19:05 2.59 1.73 03:35 0.57 09:25 1.26 0.97 03:35 0.006 09:25 0.076 0.038 0.038 0.02
12/12/2020 05:10 0.92 13:15 2.97 1.95 05:00 0.44 13:15 1.20 0.89 05:10 0.006 13:15 0.091 0.041 0.041 0.01
12/13/2020 04:55 0.96 10:40 2.90 2.03 04:50 0.35 10:40 1.21 0.89 04:50 0.005 10:40 0.089 0.044 0.044 0.24
12/14/2020 02:30 1.31 18:25 2.84 2.09 02:35 0.54 12:55 1.14 0.87 02:30 0.013 12:55 0.079 0.043 0.043 0.05
12/15/2020 03:10 1.08 08:55 2.80 1.97 03:15 0.43 14:25 1.28 0.92 03:10 0.008 10:35 0.084 0.043 0.043 0.58
12/16/2020 05:35 1.05 18:25 2.66 1.88 04:40 0.36 11:35 1.30 0.97 03:25 0.008 11:35 0.082 0.041 0.041 0.39
12/17/2020 04:00 0.77 11:15 2.64 1.81 03:05 0.39 08:00 1.19 0.95 03:05 0.005 11:15 0.075 0.039 0.039 0.08
12/18/2020 03:50 0.74 18:05 2.80 1.81 03:50 0.56 18:05 1.26 0.92 03:50 0.006 18:05 0.088 0.038 0.038 0.25
12/19/2020 03:35 0.91 09:55 2.77 1.93 03:35 0.62 09:10 1.22 0.96 02:40 0.009 09:55 0.084 0.043 0.043 0.37
12/20/2020 04:50 0.70 14:15 2.78 1.88 04:45 0.56 19:55 1.25 0.96 04:30 0.006 14:15 0.086 0.042 0.042 0.04
12/21/2020 04:10 0.86 19:30 2.79 1.93 04:00 0.65 18:05 1.26 0.98 04:00 0.009 19:30 0.085 0.044 0.044 1.07
12/22/2020 04:05 0.88 18:40 2.61 1.84 04:35 0.41 20:35 1.18 0.89 04:30 0.006 20:30 0.074 0.038 0.038 -
12/23/2020 04:25 0.69 13:25 2.72 1.84 04:05 0.57 11:05 1.15 0.90 04:25 0.006 13:25 0.077 0.038 0.038 -
12/24/2020 05:25 0.99 11:35 2.94 1.95 04:55 0.55 18:20 1.46 0.96 04:25 0.009 11:35 0.095 0.044 0.044 -
12/25/2020 04:55 0.71 11:20 2.64 1.84 07:35 0.52 00:10 1.23 0.93 04:55 0.005 12:00 0.076 0.039 0.039 0.49
12/26/2020 06:45 0.80 14:55 2.67 1.78 04:35 0.50 12:15 1.19 0.90 04:35 0.006 12:15 0.077 0.037 0.037 0.02
12/27/2020 02:50 0.95 10:15 2.97 1.88 02:55 0.61 13:10 1.31 0.93 02:50 0.009 10:15 0.097 0.041 0.041 0.13
12/28/2020 03:45 0.77 13:00 2.72 1.81 04:40 0.57 18:40 1.27 0.97 03:45 0.006 13:00 0.085 0.040 0.040 -
12/29/2020 03:45 0.77 12:40 2.74 1.76 03:45 0.54 12:40 1.22 0.92 03:45 0.006 12:40 0.083 0.037 0.037 0.14
12/30/2020 03:10 0.99 12:35 2.64 1.88 03:05 0.56 23:30 1.67 1.12 03:05 0.009 20:25 0.101 0.048 0.048 0.78
12/31/2020 04:50 0.97 17:55 2.79 1.83 07:10 0.67 00:50 1.49 1.04 04:50 0.013 18:30 0.086 0.041 0.041 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 9.089 30.65
Average 2.05 0.93 0.045
Page 558 of 1163
38
Page 559 of 1163
39
AUB_A14_710149
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced some backwater conditions during the monitoring period.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 4.68 0.79 0.182
Minimum 2.63 0.40 0.068
Maximum 9.24 1.42 0.357
Min Time 11/08/2020 6:00:00 AM 01/03/2021 3:00:00 AM 11/02/2020 3:00:00 AM
Max Time 01/02/2021 9:00:00 PM 11/23/2020 8:00:00 AM 10/09/2020 11:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 98.74
VFINAL (ft/s) 98.74
QFINAL (MGD - Total MG) 98.74
Pipe Elliptical (18 in H x 18 in W)
Silt 0.38 (in)
Page 560 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A14_710149
Page 561 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A14_710149
Page 562 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A14_710149Pipe: Elliptical (18 in H x 18 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 02:50 3.70 15:45 7.42 4.86 01:00 0.51 09:45 1.00 0.75 03:30 0.088 15:25 0.302 0.183 0.183 0.51
01/02/2021 03:50 2.94 21:15 9.88 5.58 22:05 0.43 07:05 0.95 0.72 04:45 0.077 21:20 0.385 0.209 0.209 1.69
01/03/2021 06:35 2.95 00:05 9.37 5.36 03:10 0.36 08:50 0.94 0.70 06:45 0.079 00:05 0.327 0.194 0.194 0.65
01/04/2021 03:20 3.67 19:15 6.69 5.12 03:30 0.52 10:10 0.97 0.73 03:30 0.089 11:55 0.280 0.190 0.190 0.48
01/05/2021 04:25 3.14 21:00 6.58 4.93 00:15 0.51 06:15 0.97 0.71 02:50 0.089 19:50 0.289 0.177 0.177 0.52
01/06/2021 05:55 3.96 19:55 5.69 4.98 18:50 0.49 07:20 0.86 0.69 04:00 0.118 11:40 0.233 0.174 0.174 0.22
01/07/2021 04:00 2.87 19:55 5.63 4.69 08:15 0.54 05:30 1.01 0.73 03:10 0.087 21:00 0.248 0.168 0.168 -
01/08/2021 04:05 3.36 17:35 5.73 4.87 01:50 0.55 16:45 0.98 0.76 02:45 0.091 17:05 0.288 0.188 0.188 0.22
01/09/2021 04:35 3.28 13:30 5.67 4.78 04:20 0.50 08:30 0.99 0.74 04:30 0.076 12:10 0.268 0.178 0.178 -
01/10/2021 05:40 3.46 14:25 5.77 4.84 02:30 0.46 17:55 0.96 0.74 03:45 0.085 17:55 0.270 0.181 0.181 0.07
01/11/2021 04:05 3.07 13:05 6.88 5.37 01:15 0.48 07:20 0.99 0.70 04:10 0.075 13:20 0.305 0.200 0.200 1.06
01/12/2021 00:40 5.11 19:05 8.91 6.60 05:55 0.45 17:15 0.88 0.62 00:45 0.147 19:10 0.376 0.231 0.231 2.10
01/13/2021 05:05 3.44 00:35 8.27 5.10 02:40 0.48 13:20 1.07 0.82 05:05 0.107 13:25 0.298 0.213 0.213 0.09
01/14/2021 03:50 3.49 13:00 5.70 4.80 02:50 0.54 06:20 0.92 0.78 02:50 0.083 18:45 0.266 0.188 0.188 0.01
01/15/2021 04:05 3.68 15:55 5.59 4.77 02:40 0.60 07:30 1.01 0.82 02:35 0.100 16:05 0.256 0.197 0.197 0.09
01/16/2021 03:35 2.83 12:35 5.63 4.54 00:50 0.64 08:20 1.27 0.87 03:45 0.092 10:50 0.280 0.192 0.192 -
01/17/2021 06:05 3.10 12:25 5.53 4.61 00:15 0.67 08:40 0.99 0.82 06:05 0.094 14:05 0.270 0.187 0.187 0.10
01/18/2021 04:35 2.80 14:50 5.64 4.57 01:30 0.64 06:25 1.19 0.85 02:45 0.083 13:20 0.278 0.190 0.190 -
01/19/2021 03:35 2.86 19:55 5.41 4.51 00:50 0.56 06:00 1.11 0.80 04:30 0.097 15:50 0.237 0.173 0.173 0.01
01/20/2021 04:35 2.89 18:15 5.34 4.43 00:00 0.55 06:25 1.42 0.82 02:45 0.083 14:25 0.256 0.174 0.174 -
01/21/2021 03:40 2.90 18:40 5.31 4.50 00:35 0.63 06:25 1.26 0.84 01:25 0.105 18:55 0.241 0.180 0.180 0.11
01/22/2021 05:25 2.88 19:10 5.38 4.44 23:55 0.57 05:10 1.25 0.86 03:40 0.091 17:35 0.259 0.182 0.182 -
01/23/2021 05:10 2.86 12:05 5.56 4.50 00:00 0.56 06:10 1.18 0.84 03:50 0.090 12:00 0.279 0.181 0.181 -
01/24/2021 05:25 2.88 18:05 5.92 4.53 23:50 0.56 07:05 1.37 0.87 03:00 0.094 18:05 0.289 0.188 0.188 0.16
01/25/2021 05:05 3.15 17:55 5.28 4.55 01:05 0.54 11:55 1.07 0.79 02:40 0.086 11:55 0.269 0.177 0.177 0.04
01/26/2021 04:05 2.74 18:05 5.22 4.37 00:20 0.63 03:50 1.13 0.86 02:00 0.101 21:10 0.257 0.176 0.176 -
01/27/2021 04:30 2.83 18:55 5.38 4.45 01:10 0.53 06:35 1.46 0.89 01:20 0.088 16:20 0.257 0.186 0.186 0.14
01/28/2021 03:20 2.84 12:45 5.25 4.59 17:50 0.65 15:30 1.03 0.84 04:00 0.094 12:55 0.271 0.190 0.190 0.24
01/29/2021 05:35 2.84 18:40 5.37 4.43 22:25 0.58 05:45 1.23 0.86 02:50 0.102 14:05 0.254 0.181 0.181 0.03
01/30/2021 04:40 3.09 12:40 5.43 4.52 23:45 0.65 05:10 1.18 0.86 02:45 0.104 14:20 0.274 0.189 0.189 0.07
01/31/2021 06:35 2.98 12:15 5.55 4.62 02:30 0.61 08:15 1.21 0.87 06:50 0.106 18:05 0.275 0.197 0.197 0.12
02/01/2021 05:10 3.93 18:45 6.52 5.00 23:50 0.63 07:10 1.13 0.85 00:40 0.132 18:55 0.297 0.214 0.214 0.82
02/02/2021 04:55 2.90 00:00 6.00 4.71 00:20 0.60 05:50 1.23 0.82 02:40 0.105 12:10 0.255 0.187 0.187 0.31
02/03/2021 04:10 3.06 19:15 5.38 4.59 01:00 0.54 06:30 1.24 0.82 04:25 0.105 16:05 0.253 0.185 0.185 0.06
02/04/2021 05:10 2.82 15:35 5.35 4.44 00:50 0.58 05:30 1.10 0.82 04:00 0.070 11:10 0.247 0.177 0.177 0.07
02/05/2021 04:20 2.87 13:40 5.54 4.47 23:40 0.51 06:20 1.24 0.83 04:10 0.092 13:40 0.296 0.178 0.178 0.01
02/06/2021 05:05 2.85 15:25 5.61 4.50 00:00 0.58 07:30 1.25 0.85 03:05 0.085 11:25 0.288 0.185 0.185 0.01
02/07/2021 05:25 2.86 13:20 5.63 4.45 02:05 0.49 06:25 1.14 0.80 03:00 0.085 12:35 0.261 0.172 0.172 -
02/08/2021 03:55 2.85 19:10 5.39 4.46 00:00 0.61 06:15 1.15 0.88 02:10 0.093 12:10 0.279 0.190 0.190 -
02/09/2021 04:30 2.77 17:10 5.37 4.46 00:40 0.56 05:10 1.25 0.88 03:55 0.106 11:45 0.272 0.186 0.186 -
02/10/2021 04:05 2.93 17:25 5.32 4.48 00:25 0.58 08:20 1.02 0.82 04:10 0.071 20:30 0.260 0.180 0.180 -
02/11/2021 03:05 3.00 18:05 5.33 4.47 01:00 0.55 06:05 1.39 0.79 02:40 0.077 09:15 0.244 0.169 0.169 -
02/12/2021 04:35 2.96 13:05 5.48 4.43 00:00 0.60 06:10 1.60 0.86 04:10 0.095 21:20 0.239 0.179 0.179 -
02/13/2021 05:50 2.96 12:20 5.29 4.44 01:35 0.60 08:15 1.10 0.81 05:30 0.092 12:05 0.266 0.175 0.175 0.08
02/14/2021 05:20 2.81 14:30 5.57 4.53 03:10 0.45 06:45 1.15 0.82 04:25 0.061 16:25 0.279 0.184 0.184 0.71
02/15/2021 05:55 4.45 14:05 8.03 5.89 14:40 0.56 09:00 0.88 0.72 06:10 0.151 13:25 0.328 0.229 0.229 0.78
02/16/2021 04:00 3.95 19:25 5.65 4.86 03:05 0.57 16:20 1.00 0.77 03:05 0.108 16:20 0.275 0.189 0.189 0.07
02/17/2021 04:05 2.74 16:20 5.62 4.59 14:25 0.63 07:00 1.14 0.83 02:30 0.100 18:55 0.248 0.183 0.183 -
02/18/2021 04:05 2.91 13:45 5.43 4.57 01:20 0.55 06:15 1.20 0.82 03:20 0.103 16:20 0.240 0.181 0.181 0.09
02/19/2021 05:00 2.99 19:35 5.91 4.61 23:55 0.58 07:20 1.16 0.84 05:00 0.104 15:40 0.263 0.189 0.189 0.17
02/20/2021 05:30 2.86 13:35 5.72 4.59 00:00 0.59 07:25 1.19 0.80 04:20 0.082 12:00 0.264 0.179 0.179 0.07
02/21/2021 06:25 2.87 23:50 7.87 4.79 23:50 0.53 07:30 1.21 0.80 05:05 0.086 23:35 0.310 0.189 0.189 0.42
02/22/2021 05:25 4.01 13:10 8.43 5.61 03:45 0.47 06:00 0.91 0.70 03:55 0.114 13:25 0.340 0.209 0.209 0.98
02/23/2021 05:05 2.82 22:00 6.87 4.73 01:30 0.55 08:00 1.06 0.77 05:15 0.086 09:10 0.296 0.182 0.182 0.27
02/24/2021 03:40 2.92 18:10 5.45 4.62 00:10 0.57 05:10 1.12 0.83 03:40 0.099 18:30 0.258 0.187 0.187 -
02/25/2021 02:50 3.05 20:05 5.51 4.76 01:35 0.62 02:00 1.06 0.80 02:50 0.097 19:00 0.261 0.190 0.190 0.18
02/26/2021 04:05 2.58 18:35 5.59 4.63 23:05 0.61 05:55 1.16 0.82 04:05 0.094 13:20 0.258 0.183 0.183 0.10
02/27/2021 04:35 2.94 12:20 5.72 4.66 00:20 0.61 08:00 1.35 0.86 03:30 0.101 11:30 0.274 0.195 0.195 0.02
02/28/2021 03:50 2.77 12:45 5.76 4.67 23:55 0.59 07:00 1.36 0.83 03:40 0.082 20:55 0.272 0.189 0.189 0.02
03/01/2021 05:05 2.92 13:45 5.37 4.61 01:00 0.58 11:20 1.07 0.82 02:45 0.087 11:20 0.294 0.186 0.186 -
03/02/2021 03:55 2.88 18:20 5.39 4.48 00:30 0.63 05:15 1.16 0.84 04:05 0.085 18:40 0.276 0.182 0.182 -
03/03/2021 03:45 2.79 17:50 5.45 4.50 00:05 0.63 06:35 1.25 0.87 02:35 0.089 19:00 0.252 0.188 0.188 -
03/04/2021 04:55 2.92 19:55 6.16 4.54 01:25 0.51 06:20 1.39 0.85 04:10 0.091 13:00 0.289 0.186 0.186 0.20
03/05/2021 04:15 2.53 13:30 5.38 4.48 02:15 0.55 05:25 1.28 0.84 04:15 0.083 14:45 0.266 0.179 0.179 0.05
03/06/2021 06:20 2.90 14:25 5.47 4.51 01:55 0.59 07:00 1.32 0.90 01:55 0.108 12:05 0.284 0.195 0.195 -
03/07/2021 06:35 2.67 13:00 5.55 4.49 23:05 0.64 07:05 1.36 0.90 03:25 0.093 10:30 0.298 0.194 0.194 0.04
03/08/2021 04:40 2.75 20:15 5.45 4.54 23:30 0.53 07:00 1.27 0.82 04:15 0.082 10:30 0.266 0.177 0.177 -
03/09/2021 05:50 2.88 20:55 5.38 4.48 01:20 0.50 07:05 1.36 0.85 01:35 0.077 11:35 0.267 0.183 0.183 0.01
03/10/2021 03:30 2.85 16:50 5.47 4.56 00:25 0.48 05:10 1.28 0.83 02:35 0.089 18:15 0.262 0.181 0.181 -
03/11/2021 04:30 2.78 12:35 5.47 4.53 00:50 0.53 06:10 1.23 0.82 03:25 0.074 09:30 0.249 0.179 0.179 -
Page 563 of 1163
43
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:40 2.40 18:40 6.24 4.46 18:35 0.53 06:15 1.34 0.82 03:40 0.078 17:00 0.250 0.175 0.175 -
03/13/2021 05:20 2.75 13:55 5.64 4.52 04:40 0.52 08:00 1.27 0.81 04:40 0.066 10:35 0.292 0.181 0.181 -
03/14/2021 06:05 2.81 15:40 5.98 4.61 02:30 0.46 06:00 1.11 0.79 04:55 0.064 15:05 0.289 0.182 0.182 0.30
03/15/2021 03:20 2.90 11:40 5.45 4.48 00:55 0.55 04:35 1.22 0.81 02:05 0.082 12:10 0.246 0.172 0.172 -
03/16/2021 04:00 2.83 18:45 5.44 4.54 00:00 0.59 05:20 1.16 0.81 05:05 0.084 16:20 0.266 0.179 0.179 -
03/17/2021 03:05 2.73 11:35 5.43 4.56 00:05 0.56 05:50 1.17 0.78 02:15 0.072 10:15 0.256 0.173 0.173 -
03/18/2021 04:30 2.95 16:35 5.78 4.55 01:25 0.53 05:45 1.10 0.78 02:00 0.067 11:55 0.258 0.172 0.172 0.11
03/19/2021 03:10 2.75 13:00 5.41 4.44 01:15 0.53 05:40 1.36 0.85 01:15 0.083 09:10 0.259 0.176 0.176 0.03
03/20/2021 04:05 2.75 14:45 5.46 4.54 23:05 0.55 05:30 1.22 0.78 04:15 0.063 13:45 0.252 0.172 0.172 0.17
03/21/2021 04:35 2.79 11:15 5.71 4.47 01:10 0.54 06:30 1.11 0.87 04:30 0.082 11:15 0.291 0.190 0.190 0.07
03/22/2021 02:30 2.93 10:45 5.81 4.63 22:45 0.54 04:20 1.22 0.86 23:50 0.111 11:55 0.278 0.192 0.192 0.11
03/23/2021 04:00 3.26 18:45 5.48 4.65 02:55 0.49 07:10 0.92 0.72 02:55 0.072 12:10 0.247 0.168 0.168 -
03/24/2021 03:15 3.05 20:10 5.98 4.63 01:45 0.51 07:10 1.02 0.75 01:45 0.073 20:20 0.245 0.171 0.171 0.34
03/25/2021 03:05 3.60 18:20 5.52 4.88 01:10 0.48 07:40 1.06 0.72 03:50 0.103 07:40 0.245 0.175 0.175 0.27
03/26/2021 04:35 2.95 11:25 5.42 4.59 00:00 0.52 06:05 0.95 0.80 03:40 0.075 11:10 0.267 0.181 0.181 -
03/27/2021 05:00 3.03 10:45 5.46 4.60 01:15 0.61 05:55 0.97 0.78 02:10 0.087 11:00 0.241 0.178 0.178 -
03/28/2021 05:05 2.78 14:55 7.39 4.67 16:25 0.59 08:20 1.03 0.74 04:15 0.073 14:35 0.339 0.172 0.172 0.37
03/29/2021 03:20 2.83 10:45 5.44 4.56 00:50 0.64 05:10 1.42 0.93 03:20 0.076 10:05 0.301 0.206 0.206 -
03/30/2021 05:15 2.84 12:30 5.43 4.51 23:40 0.64 06:20 1.26 0.92 01:35 0.098 17:15 0.282 0.199 0.199 -
03/31/2021 02:50 2.72 11:55 5.40 4.57 23:20 0.57 05:45 1.29 0.84 02:50 0.081 13:15 0.262 0.188 0.188 -
04/01/2021 03:15 2.72 11:40 5.41 4.58 02:00 0.52 10:55 0.89 0.73 02:25 0.066 10:55 0.247 0.165 0.165 -
04/02/2021 03:55 2.91 11:40 5.41 4.56 01:05 0.57 12:10 0.94 0.74 04:50 0.069 17:15 0.251 0.167 0.167 -
04/03/2021 03:15 2.91 11:10 5.59 4.51 05:15 0.52 07:50 1.03 0.76 05:15 0.062 08:50 0.270 0.170 0.170 -
04/04/2021 03:15 2.78 11:20 5.59 4.48 23:40 0.46 07:25 1.07 0.78 05:05 0.077 11:40 0.251 0.167 0.167 -
04/05/2021 02:55 2.86 11:55 5.53 4.59 00:50 0.46 15:35 0.92 0.71 01:50 0.059 15:35 0.246 0.163 0.163 -
04/06/2021 03:45 2.83 13:05 5.47 4.62 02:55 0.50 06:50 1.04 0.76 03:15 0.063 11:15 0.255 0.176 0.176 -
04/07/2021 03:10 2.81 19:05 5.45 4.62 01:15 0.54 04:45 1.03 0.80 03:05 0.077 19:05 0.253 0.182 0.182 0.22
04/08/2021 03:15 2.90 12:30 5.42 4.61 23:35 0.57 10:00 1.06 0.82 04:40 0.085 10:00 0.275 0.187 0.187 -
04/09/2021 02:50 2.67 19:00 5.42 4.47 22:35 0.63 05:50 1.10 0.81 02:10 0.082 13:00 0.255 0.174 0.174 0.03
04/10/2021 03:35 2.93 12:05 5.60 4.53 02:10 0.56 06:25 1.11 0.78 04:10 0.074 09:50 0.271 0.172 0.172 0.02
04/11/2021 03:20 2.89 09:15 5.72 4.56 06:20 0.54 16:30 0.98 0.74 03:25 0.065 16:30 0.262 0.169 0.169 -
04/12/2021 02:25 2.88 11:45 5.50 4.57 23:50 0.51 06:00 1.18 0.80 03:00 0.076 11:40 0.280 0.180 0.180 -
04/13/2021 02:20 2.80 12:05 5.42 4.53 00:00 0.55 06:30 1.14 0.80 02:15 0.072 11:25 0.256 0.179 0.179 -
04/14/2021 03:30 2.66 12:50 5.41 4.58 01:20 0.57 06:35 1.09 0.81 02:25 0.063 15:05 0.273 0.185 0.185 -
09/24/2020 23:45 4.98 18:35 6.21 5.91 22:45 0.52 14:55 0.81 0.69 23:45 0.139 19:25 0.276 0.222 0.091 -
09/25/2020 03:00 4.24 12:25 7.13 5.57 01:55 0.43 15:15 0.82 0.65 03:00 0.086 12:25 0.282 0.197 0.197 -
09/26/2020 04:45 3.74 15:15 6.41 5.34 03:15 0.38 12:30 0.94 0.66 04:25 0.071 12:30 0.300 0.188 0.188 -
09/27/2020 03:55 3.84 11:20 6.18 5.20 01:30 0.40 09:50 0.92 0.70 01:30 0.075 11:45 0.300 0.194 0.194 -
09/28/2020 03:10 3.18 18:15 5.98 5.02 02:50 0.49 06:20 0.91 0.76 03:00 0.077 12:30 0.280 0.196 0.196 -
09/29/2020 04:05 3.38 17:30 5.87 5.01 01:55 0.60 03:45 1.12 0.81 01:50 0.091 14:15 0.284 0.205 0.205 -
09/30/2020 02:55 3.21 19:05 5.98 5.01 23:45 0.58 04:20 1.13 0.82 01:00 0.109 14:50 0.303 0.206 0.206 -
10/01/2020 02:55 3.31 19:20 5.90 5.01 00:20 0.58 05:00 1.10 0.77 02:45 0.097 16:55 0.280 0.195 0.195 -
10/02/2020 02:45 3.21 10:55 5.89 5.01 00:20 0.55 04:30 1.01 0.78 01:45 0.101 16:40 0.288 0.198 0.198 -
10/03/2020 03:25 3.06 11:55 6.01 4.97 00:25 0.53 08:45 1.02 0.76 03:50 0.075 09:00 0.300 0.193 0.193 0.01
10/04/2020 03:10 3.32 11:25 6.01 4.99 04:05 0.47 15:20 1.03 0.73 04:05 0.068 15:20 0.322 0.190 0.190 0.01
10/05/2020 04:10 3.31 12:25 5.70 4.79 21:15 0.58 05:15 1.07 0.79 02:55 0.089 09:05 0.260 0.190 0.190 -
10/06/2020 04:05 2.82 12:40 5.31 4.42 01:10 0.59 04:00 1.12 0.79 01:15 0.089 17:20 0.239 0.167 0.167 -
10/07/2020 02:50 2.85 18:45 5.42 4.39 23:45 0.50 05:10 0.95 0.77 01:30 0.080 19:00 0.234 0.163 0.163 -
10/08/2020 03:30 2.90 18:35 5.40 4.47 00:00 0.55 04:30 0.98 0.72 02:45 0.077 20:05 0.257 0.157 0.157 -
10/09/2020 03:15 2.99 23:55 8.95 4.70 00:40 0.55 15:25 0.96 0.76 02:15 0.078 23:20 0.373 0.180 0.180 0.64
10/10/2020 23:55 4.01 01:40 10.26 5.35 03:15 0.51 10:30 0.97 0.73 23:55 0.110 01:45 0.382 0.201 0.201 1.04
10/11/2020 05:30 2.74 18:15 6.46 4.51 02:35 0.49 07:10 1.15 0.80 02:35 0.061 18:00 0.307 0.178 0.178 0.53
10/12/2020 02:50 3.01 17:55 5.52 4.59 23:10 0.56 05:50 1.03 0.77 03:05 0.077 11:30 0.263 0.174 0.174 -
10/13/2020 01:20 3.21 07:35 7.75 5.03 08:45 0.53 03:50 1.08 0.75 00:55 0.077 07:10 0.361 0.193 0.193 0.61
10/14/2020 01:35 2.83 20:05 5.58 4.64 11:00 0.60 04:35 1.14 0.78 01:20 0.072 19:20 0.287 0.178 0.178 -
10/15/2020 02:40 2.96 18:05 5.66 4.64 23:10 0.54 05:25 1.19 0.80 01:35 0.082 19:55 0.271 0.182 0.182 -
10/16/2020 03:05 2.41 11:45 5.53 4.56 00:40 0.47 04:50 1.08 0.79 01:00 0.071 15:40 0.266 0.175 0.175 -
10/17/2020 03:40 2.86 13:40 5.58 4.58 00:25 0.57 06:55 1.21 0.79 02:45 0.084 13:30 0.268 0.178 0.178 0.01
10/18/2020 04:40 2.66 13:00 5.60 4.48 00:50 0.49 07:10 1.22 0.78 02:15 0.060 13:10 0.264 0.173 0.173 0.03
10/19/2020 03:20 2.81 20:05 5.53 4.58 20:30 0.58 05:35 1.19 0.78 02:55 0.075 14:00 0.251 0.174 0.174 0.05
10/20/2020 04:05 2.82 19:25 5.52 4.60 23:20 0.56 05:15 0.98 0.75 03:05 0.067 20:20 0.268 0.170 0.170 -
10/21/2020 02:30 2.83 19:35 5.53 4.54 01:10 0.53 04:15 1.19 0.74 02:00 0.065 19:25 0.229 0.163 0.163 0.01
10/22/2020 04:00 2.77 12:15 5.46 4.59 22:40 0.53 04:20 1.11 0.76 01:35 0.080 12:15 0.242 0.169 0.169 -
10/23/2020 03:35 2.61 20:10 5.68 4.62 01:15 0.47 04:15 1.08 0.78 01:15 0.066 20:00 0.283 0.179 0.179 0.20
10/24/2020 04:50 2.72 11:30 5.68 4.59 20:35 0.56 08:05 1.03 0.81 04:50 0.081 12:05 0.286 0.182 0.182 0.02
10/25/2020 04:55 2.80 11:55 5.49 4.55 01:10 0.57 06:05 1.10 0.80 02:40 0.078 17:10 0.257 0.179 0.179 -
10/26/2020 03:55 2.89 17:40 5.50 4.55 23:55 0.56 04:30 1.25 0.82 01:15 0.086 09:25 0.269 0.180 0.180 -
10/27/2020 03:40 2.93 18:55 5.68 4.60 01:35 0.56 06:00 0.94 0.76 01:30 0.073 18:55 0.273 0.173 0.173 -
10/28/2020 03:35 2.95 13:10 5.42 4.52 02:10 0.56 04:30 1.04 0.81 01:40 0.077 13:00 0.278 0.180 0.180 -
10/29/2020 02:55 2.90 10:40 6.24 4.90 14:45 0.38 06:20 1.05 0.60 03:45 0.075 11:55 0.199 0.138 0.138 -
10/30/2020 04:35 2.93 16:55 5.80 4.74 23:15 0.50 05:30 1.00 0.67 04:05 0.071 19:35 0.216 0.157 0.157 0.10
10/31/2020 03:45 2.54 11:15 5.67 4.47 01:40 0.52 06:20 1.15 0.76 02:10 0.064 09:20 0.249 0.164 0.164 -
11/01/2020 04:40 2.61 12:50 5.64 4.37 01:20 0.55 06:55 1.09 0.78 03:00 0.061 13:20 0.270 0.166 0.166 -
11/02/2020 03:25 2.70 18:30 5.42 4.44 01:15 0.46 06:05 0.99 0.73 04:10 0.059 18:50 0.233 0.158 0.158 -
Page 564 of 1163
44
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/03/2020 05:25 2.74 10:20 7.67 4.87 04:00 0.48 06:40 1.02 0.72 04:10 0.056 10:05 0.348 0.178 0.178 0.83
11/04/2020 03:30 2.84 20:10 5.36 4.50 00:15 0.55 05:45 1.12 0.77 02:45 0.077 16:25 0.238 0.167 0.167 0.09
11/05/2020 05:10 2.93 13:40 5.55 4.71 23:55 0.56 04:40 0.98 0.78 04:10 0.103 18:15 0.275 0.180 0.180 0.34
11/06/2020 04:35 3.23 13:20 5.32 4.66 00:00 0.56 06:15 1.07 0.75 04:35 0.086 12:25 0.238 0.171 0.171 0.10
11/07/2020 06:15 2.76 16:20 5.45 4.43 01:40 0.47 08:20 1.08 0.75 01:55 0.067 11:35 0.251 0.161 0.161 0.07
11/08/2020 06:25 2.55 13:10 5.64 4.48 01:00 0.51 06:45 1.08 0.76 02:55 0.073 11:20 0.253 0.166 0.166 0.01
11/09/2020 04:15 2.36 21:30 5.43 4.50 00:35 0.56 06:00 1.10 0.77 03:05 0.066 13:35 0.240 0.166 0.166 0.04
11/10/2020 04:10 2.59 19:15 5.47 4.56 04:50 0.40 08:15 0.97 0.73 04:55 0.061 16:45 0.231 0.165 0.165 0.03
11/11/2020 05:50 2.77 14:50 5.41 4.54 01:15 0.49 08:35 1.18 0.75 04:05 0.057 11:00 0.244 0.167 0.167 -
11/12/2020 04:00 2.50 20:40 5.65 4.56 00:45 0.60 07:25 1.08 0.81 01:40 0.070 21:25 0.274 0.182 0.182 0.16
11/13/2020 02:05 3.87 06:50 5.69 4.91 21:10 0.68 06:25 1.18 0.83 23:55 0.139 06:25 0.310 0.204 0.204 0.38
11/14/2020 03:55 2.72 18:25 6.83 4.68 02:20 0.65 08:05 1.24 0.85 03:55 0.094 18:00 0.325 0.193 0.193 0.47
11/15/2020 07:20 2.94 13:35 5.53 4.71 12:00 0.64 10:30 1.07 0.83 07:30 0.109 10:30 0.271 0.191 0.191 0.19
11/16/2020 05:15 2.91 13:30 6.34 4.74 00:25 0.58 12:25 1.12 0.80 05:15 0.088 12:25 0.382 0.188 0.188 0.31
11/17/2020 04:50 2.87 19:50 6.08 4.59 00:50 0.50 06:45 1.21 0.82 00:50 0.094 19:15 0.257 0.182 0.182 0.20
11/18/2020 04:20 2.84 18:00 5.68 4.67 22:10 0.61 06:50 1.18 0.84 02:45 0.096 10:15 0.257 0.191 0.191 0.30
11/19/2020 02:50 3.10 13:05 6.93 4.87 03:40 0.55 03:10 1.26 0.82 02:50 0.101 12:35 0.291 0.198 0.198 0.50
11/20/2020 04:05 3.04 12:30 5.34 4.53 22:25 0.61 05:45 1.39 0.88 03:05 0.109 13:55 0.258 0.190 0.190 0.01
11/21/2020 02:40 2.90 13:25 5.62 4.52 01:00 0.62 09:10 1.24 0.88 02:40 0.079 13:30 0.293 0.196 0.196 -
11/22/2020 03:55 2.86 18:15 5.83 4.61 01:25 0.57 06:30 1.19 0.82 03:10 0.084 11:10 0.265 0.182 0.182 0.21
11/23/2020 05:05 2.88 13:10 5.48 4.75 23:55 0.60 08:35 1.68 0.89 02:40 0.108 08:35 0.450 0.209 0.209 0.14
11/24/2020 05:00 2.81 16:15 6.22 4.62 23:50 0.56 06:45 1.40 0.86 03:10 0.090 08:55 0.296 0.194 0.194 0.21
11/25/2020 03:35 3.03 22:10 5.46 4.70 00:05 0.53 05:15 1.34 0.83 02:50 0.099 14:05 0.244 0.188 0.188 0.05
11/26/2020 05:05 2.76 11:55 5.80 4.63 01:20 0.51 06:50 1.34 0.82 05:05 0.082 14:50 0.298 0.184 0.184 0.02
11/27/2020 04:55 2.87 12:15 5.49 4.53 03:25 0.52 08:15 1.05 0.78 04:45 0.070 12:30 0.263 0.175 0.175 -
11/28/2020 05:40 2.91 13:25 5.51 4.59 01:20 0.48 03:25 1.06 0.76 05:50 0.076 15:10 0.270 0.172 0.172 0.05
11/29/2020 05:45 2.90 13:35 5.66 4.59 02:35 0.42 08:50 1.11 0.76 02:35 0.067 12:30 0.271 0.174 0.174 -
11/30/2020 03:35 3.06 04:55 5.60 4.92 03:10 0.48 11:25 1.06 0.77 03:10 0.072 11:25 0.286 0.192 0.192 0.36
12/01/2020 04:00 3.08 19:05 5.39 4.65 01:15 0.52 08:15 1.04 0.73 04:35 0.086 12:40 0.241 0.169 0.169 -
12/02/2020 04:30 2.94 19:30 5.43 4.68 01:25 0.45 06:40 1.08 0.76 02:05 0.073 13:30 0.249 0.178 0.178 0.01
12/03/2020 04:55 2.87 13:20 5.40 4.60 01:40 0.42 06:30 1.11 0.75 01:40 0.069 20:15 0.255 0.173 0.173 -
12/04/2020 04:10 3.00 12:55 5.46 4.63 03:05 0.49 04:55 1.07 0.79 03:55 0.076 16:05 0.282 0.180 0.180 -
12/05/2020 03:50 2.90 15:35 5.62 4.60 01:25 0.53 06:15 1.01 0.75 04:20 0.074 10:40 0.259 0.171 0.171 0.03
12/06/2020 03:35 3.08 13:00 5.68 4.73 03:45 0.48 15:50 0.89 0.68 03:35 0.068 12:55 0.267 0.162 0.162 0.03
12/07/2020 05:05 2.99 17:35 5.47 4.67 00:50 0.47 09:40 0.98 0.74 04:35 0.065 13:10 0.262 0.174 0.174 -
12/08/2020 03:15 3.05 21:35 6.68 5.16 03:55 0.55 06:10 1.02 0.72 03:55 0.074 19:40 0.296 0.195 0.195 0.87
12/09/2020 05:50 3.60 18:30 5.56 4.82 04:35 0.53 15:15 0.99 0.76 04:35 0.089 19:00 0.259 0.183 0.183 0.17
12/10/2020 04:20 2.92 20:50 5.51 4.54 02:00 0.55 05:25 1.01 0.80 03:10 0.073 16:20 0.259 0.180 0.180 0.07
12/11/2020 05:00 2.91 12:55 5.42 4.50 01:55 0.58 07:10 1.12 0.84 02:30 0.090 18:50 0.266 0.181 0.181 0.02
12/12/2020 05:25 2.56 12:35 5.62 4.51 01:35 0.55 06:50 1.25 0.83 04:20 0.084 16:20 0.283 0.181 0.181 0.01
12/13/2020 07:05 3.10 11:45 5.79 4.66 00:40 0.58 05:00 1.07 0.84 02:10 0.097 10:30 0.298 0.194 0.194 0.24
12/14/2020 03:25 2.87 17:40 5.45 4.57 01:50 0.57 06:00 1.14 0.81 02:45 0.085 19:40 0.276 0.180 0.180 0.05
12/15/2020 03:40 2.85 16:10 7.63 4.85 01:55 0.48 08:10 1.04 0.78 03:45 0.077 15:50 0.320 0.191 0.191 0.58
12/16/2020 04:30 3.13 14:50 6.58 4.80 02:50 0.42 06:55 0.99 0.75 02:50 0.069 15:30 0.318 0.181 0.181 0.39
12/17/2020 04:25 2.86 13:00 5.36 4.52 01:25 0.61 07:00 1.01 0.79 03:15 0.079 18:05 0.233 0.174 0.174 0.08
12/18/2020 04:15 2.88 19:10 5.40 4.59 00:55 0.63 07:30 1.08 0.85 04:00 0.090 14:30 0.269 0.191 0.191 0.25
12/19/2020 05:45 2.35 21:20 6.08 4.64 02:20 0.62 08:15 1.21 0.82 05:45 0.072 17:20 0.271 0.186 0.186 0.37
12/20/2020 06:55 2.78 14:00 5.45 4.49 22:10 0.58 05:00 1.06 0.82 03:40 0.079 15:45 0.255 0.177 0.177 0.04
12/21/2020 04:50 4.13 16:40 8.47 5.51 20:20 0.54 16:10 0.99 0.73 04:10 0.131 16:50 0.387 0.211 0.211 1.07
12/22/2020 04:50 2.91 12:40 5.40 4.61 22:55 0.57 06:05 1.12 0.77 04:50 0.086 17:00 0.266 0.175 0.175 -
12/23/2020 05:45 3.02 14:25 5.44 4.52 01:10 0.55 11:45 1.02 0.78 02:55 0.084 11:45 0.277 0.173 0.173 -
12/24/2020 05:50 2.87 14:00 5.64 4.52 20:35 0.54 07:40 1.39 0.82 03:55 0.080 14:00 0.306 0.177 0.177 -
12/25/2020 04:45 2.72 17:15 5.79 4.45 01:15 0.57 16:00 1.04 0.80 04:45 0.079 16:10 0.318 0.174 0.174 0.49
12/26/2020 05:10 3.01 12:55 5.57 4.48 02:25 0.56 10:00 1.01 0.78 03:55 0.075 16:50 0.270 0.172 0.172 0.02
12/27/2020 06:50 2.88 12:30 5.75 4.57 02:35 0.59 07:05 1.10 0.81 03:45 0.075 14:15 0.297 0.183 0.183 0.13
12/28/2020 04:50 3.01 14:25 5.58 4.53 01:30 0.50 06:15 1.27 0.79 03:45 0.076 15:45 0.261 0.175 0.175 -
12/29/2020 03:45 2.98 19:45 6.07 4.55 00:15 0.58 06:50 1.12 0.79 03:00 0.094 19:40 0.271 0.174 0.174 0.14
12/30/2020 01:40 4.03 06:35 5.91 5.14 20:15 0.54 10:30 0.92 0.75 03:45 0.132 21:35 0.254 0.197 0.197 0.78
12/31/2020 06:50 3.38 18:15 5.57 4.73 01:20 0.58 11:10 1.03 0.78 03:20 0.115 18:00 0.286 0.183 0.183 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 36.893 30.65
Average 4.68 0.79 0.182
Page 565 of 1163
45
Page 566 of 1163
46
AUB_A15_80930
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.89 0.45 0.058
Minimum 1.84 0.19 0.013
Maximum 3.95 0.72 0.135
Min Time 01/07/2021 3:00:00 AM 03/31/2021 2:00:00 AM 01/07/2021 3:00:00 AM
Max Time 11/23/2020 8:00:00 AM 02/22/2021 1:00:00 PM 11/23/2020 8:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.263
VFINAL (ft/s) 99.263
QFINAL (MGD - Total MG) 99.263
Pipe Round (21 in H)
Silt 0.38 (in)
Page 567 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A15_80930
Page 568 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Scattergraph Report
AUB_A15_80930
Page 569 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A15_80930Pipe: Round (21 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 03:05 2.23 15:40 3.57 2.89 03:00 0.31 16:10 0.67 0.49 03:00 0.026 15:45 0.112 0.062 0.062 0.51
01/02/2021 04:30 2.06 19:50 3.84 3.01 03:35 0.27 19:50 0.74 0.52 03:35 0.020 19:50 0.139 0.074 0.074 1.69
01/03/2021 06:10 2.07 13:25 3.52 2.91 06:15 0.27 12:55 0.69 0.51 06:10 0.020 13:00 0.113 0.067 0.067 0.65
01/04/2021 03:50 2.28 12:00 3.41 2.93 04:10 0.33 11:55 0.66 0.51 03:40 0.029 11:55 0.103 0.066 0.066 0.48
01/05/2021 03:10 2.16 19:05 3.38 2.82 03:15 0.30 13:25 0.62 0.48 03:10 0.024 19:05 0.096 0.058 0.058 0.52
01/06/2021 04:10 2.40 20:00 3.23 2.82 04:10 0.36 19:55 0.63 0.48 04:20 0.033 20:00 0.091 0.058 0.058 0.22
01/07/2021 03:15 1.78 14:50 3.20 2.67 03:10 0.20 18:10 0.59 0.44 03:15 0.011 18:05 0.083 0.051 0.051 -
01/08/2021 02:50 2.08 16:15 3.40 2.84 03:15 0.27 09:10 0.71 0.48 03:15 0.020 09:10 0.105 0.060 0.060 0.22
01/09/2021 03:40 2.07 22:15 3.90 2.79 03:35 0.28 13:25 0.66 0.47 03:40 0.020 22:15 0.127 0.059 0.059 -
01/10/2021 02:00 2.14 14:10 3.57 2.89 02:00 0.30 11:10 0.63 0.49 02:00 0.023 14:10 0.102 0.064 0.064 0.07
01/11/2021 03:35 2.03 13:00 3.67 2.93 02:50 0.27 11:10 0.63 0.50 02:50 0.019 13:00 0.110 0.067 0.067 1.06
01/12/2021 00:10 2.66 18:50 3.81 3.13 00:10 0.44 18:50 0.65 0.55 00:10 0.047 18:50 0.120 0.078 0.078 2.10
01/13/2021 05:00 2.15 00:25 3.56 2.93 04:55 0.33 16:55 0.73 0.56 05:00 0.025 17:25 0.117 0.073 0.073 0.09
01/14/2021 04:05 2.17 11:05 3.43 2.94 03:00 0.30 11:45 0.71 0.52 03:00 0.026 11:45 0.111 0.068 0.068 0.01
01/15/2021 02:30 2.23 13:25 3.40 2.93 01:55 0.32 10:25 0.66 0.50 01:55 0.027 10:25 0.099 0.065 0.065 0.09
01/16/2021 03:50 2.06 11:40 3.53 2.89 03:55 0.22 15:30 0.58 0.42 03:55 0.016 17:25 0.095 0.056 0.056 -
01/17/2021 06:35 2.13 13:50 3.59 2.96 01:50 0.22 19:00 0.58 0.42 06:30 0.019 13:50 0.096 0.056 0.056 0.10
01/18/2021 03:05 2.10 12:55 3.68 2.89 02:20 0.24 12:50 0.65 0.45 02:20 0.018 12:55 0.115 0.058 0.058 -
01/19/2021 05:05 2.11 17:25 3.40 2.84 02:35 0.23 17:10 0.59 0.41 03:00 0.018 17:25 0.092 0.051 0.051 0.01
01/20/2021 04:15 2.05 20:10 3.46 2.89 02:00 0.21 12:25 0.54 0.40 04:20 0.015 12:25 0.087 0.052 0.052 -
01/21/2021 02:55 2.16 18:05 3.39 2.94 02:55 0.25 14:00 0.52 0.41 02:50 0.020 18:05 0.080 0.053 0.053 0.11
01/22/2021 04:10 2.01 12:00 3.56 2.90 04:10 0.21 17:10 0.56 0.40 04:10 0.015 17:10 0.093 0.053 0.053 -
01/23/2021 03:15 2.02 11:40 3.89 2.86 03:10 0.19 11:45 0.64 0.40 03:10 0.014 11:45 0.122 0.053 0.053 -
01/24/2021 03:05 2.04 17:55 3.75 2.87 02:20 0.22 17:35 0.63 0.40 02:55 0.016 17:40 0.113 0.053 0.053 0.16
01/25/2021 05:15 2.09 11:35 3.38 2.87 03:15 0.23 11:30 0.55 0.41 05:10 0.017 11:30 0.085 0.052 0.052 0.04
01/26/2021 02:55 2.06 19:30 3.29 2.80 02:45 0.22 19:20 0.55 0.40 02:40 0.016 19:20 0.082 0.049 0.049 -
01/27/2021 02:15 2.09 19:00 3.49 2.93 01:55 0.21 21:40 0.62 0.41 01:55 0.016 21:40 0.088 0.054 0.054 0.14
01/28/2021 03:00 1.95 12:45 3.35 2.92 04:00 0.17 12:40 0.56 0.42 04:00 0.012 12:40 0.085 0.055 0.055 0.24
01/29/2021 03:25 2.03 16:15 3.32 2.83 03:15 0.19 16:10 0.58 0.40 03:15 0.014 16:10 0.088 0.050 0.050 0.03
01/30/2021 03:30 2.14 12:25 3.47 2.88 02:30 0.22 12:30 0.58 0.42 03:10 0.018 12:30 0.094 0.054 0.054 0.07
01/31/2021 06:00 2.12 17:40 3.53 2.90 05:25 0.25 11:15 0.60 0.44 05:55 0.019 11:55 0.098 0.058 0.058 0.12
02/01/2021 03:20 2.35 18:50 3.72 3.05 03:10 0.30 18:45 0.67 0.48 03:15 0.027 18:45 0.118 0.066 0.066 0.82
02/02/2021 03:50 2.17 18:05 3.32 2.88 04:00 0.25 10:25 0.58 0.44 04:00 0.020 18:05 0.084 0.056 0.056 0.31
02/03/2021 03:55 2.17 18:45 3.36 2.85 04:05 0.27 11:50 0.57 0.43 04:10 0.021 12:10 0.084 0.054 0.054 0.06
02/04/2021 03:00 1.95 17:45 3.25 2.79 03:05 0.20 10:35 0.55 0.41 03:05 0.013 10:35 0.081 0.051 0.051 0.07
02/05/2021 03:35 2.06 13:15 4.89 2.85 04:00 0.21 13:15 0.67 0.42 03:35 0.016 13:15 0.179 0.054 0.054 0.01
02/06/2021 05:50 2.01 15:00 3.74 2.90 03:30 0.23 14:55 0.65 0.43 05:45 0.016 14:55 0.117 0.057 0.057 0.01
02/07/2021 04:40 2.03 12:45 3.68 2.88 04:10 0.22 11:15 0.62 0.43 04:10 0.016 12:45 0.108 0.057 0.057 -
02/08/2021 02:45 2.07 12:00 3.51 2.87 02:10 0.23 11:55 0.65 0.44 02:10 0.017 12:00 0.105 0.058 0.058 -
02/09/2021 03:40 1.98 11:20 3.40 2.81 03:35 0.20 11:20 0.58 0.43 03:35 0.014 11:20 0.091 0.053 0.053 -
02/10/2021 03:35 2.05 20:10 3.35 2.77 04:05 0.20 20:00 0.62 0.42 03:35 0.015 20:00 0.093 0.051 0.051 -
02/11/2021 03:55 1.92 08:50 3.29 2.74 03:50 0.19 09:00 0.59 0.41 03:55 0.012 09:00 0.085 0.049 0.049 -
02/12/2021 03:55 2.06 17:15 3.27 2.77 04:00 0.22 17:15 0.60 0.44 04:00 0.016 17:15 0.088 0.052 0.052 -
02/13/2021 05:10 2.22 13:05 3.39 2.85 02:05 0.29 21:15 0.65 0.47 02:15 0.024 11:55 0.095 0.059 0.059 0.08
02/14/2021 04:15 1.95 15:55 3.64 2.93 02:35 0.30 15:10 0.73 0.55 02:35 0.022 15:10 0.125 0.073 0.073 0.71
02/15/2021 05:05 2.67 11:35 3.69 3.19 04:00 0.46 11:00 0.71 0.58 04:45 0.050 11:10 0.126 0.084 0.084 0.78
02/16/2021 05:10 2.47 16:45 3.40 2.95 02:50 0.33 15:45 0.76 0.52 02:50 0.035 15:45 0.113 0.067 0.067 0.07
02/17/2021 03:35 2.14 17:25 3.48 2.91 02:00 0.31 17:40 0.66 0.49 04:05 0.024 17:40 0.107 0.064 0.064 -
02/18/2021 03:55 2.06 15:55 3.45 2.86 04:10 0.27 16:05 0.64 0.48 04:10 0.020 15:55 0.102 0.061 0.061 0.09
02/19/2021 04:40 2.32 13:30 3.47 2.95 01:20 0.34 15:35 0.65 0.50 01:20 0.030 13:30 0.103 0.065 0.065 0.17
02/20/2021 03:35 2.07 11:35 3.54 2.92 03:40 0.27 13:45 0.74 0.49 03:35 0.020 13:45 0.120 0.065 0.065 0.07
02/21/2021 04:50 1.97 12:45 3.67 2.97 05:55 0.23 11:40 0.72 0.50 04:50 0.017 11:40 0.124 0.069 0.069 0.42
02/22/2021 04:25 2.39 13:00 3.85 3.10 05:15 0.35 13:25 0.77 0.55 05:15 0.033 13:05 0.142 0.077 0.077 0.98
02/23/2021 04:00 1.99 08:45 3.84 2.90 03:50 0.23 08:45 0.80 0.49 03:50 0.016 08:45 0.150 0.064 0.064 0.27
02/24/2021 03:35 2.21 17:50 3.44 2.93 05:25 0.29 13:40 0.67 0.51 03:05 0.024 17:45 0.106 0.067 0.067 -
02/25/2021 02:25 2.24 18:55 3.34 2.91 02:50 0.32 17:10 0.71 0.52 02:20 0.027 17:10 0.104 0.066 0.066 0.18
02/26/2021 03:20 2.13 14:25 3.38 2.91 04:15 0.27 12:30 0.69 0.51 03:15 0.022 12:55 0.104 0.067 0.067 0.10
02/27/2021 04:35 2.11 11:00 3.66 3.00 04:25 0.28 10:35 0.68 0.51 04:30 0.021 10:35 0.117 0.070 0.070 0.02
02/28/2021 05:55 2.09 13:45 3.73 2.97 04:25 0.27 13:20 0.67 0.48 04:30 0.020 13:35 0.119 0.066 0.066 0.02
03/01/2021 13:05 1.62 13:10 5.17 2.92 13:05 0.10 13:30 1.03 0.48 13:05 0.005 13:30 0.245 0.064 0.064 -
03/02/2021 03:55 2.09 18:20 3.48 2.87 03:15 0.26 16:10 0.64 0.47 03:00 0.020 18:00 0.097 0.059 0.059 -
03/03/2021 04:05 2.07 18:30 3.42 2.89 03:50 0.19 18:25 0.60 0.43 03:50 0.014 18:25 0.094 0.057 0.057 -
03/04/2021 12:15 1.89 12:25 5.64 2.84 12:15 0.19 12:25 0.86 0.43 12:15 0.012 12:25 0.282 0.054 0.054 0.20
03/05/2021 04:05 2.01 11:30 3.40 2.87 03:40 0.22 11:35 0.57 0.41 04:05 0.015 11:35 0.089 0.052 0.052 0.05
03/06/2021 04:25 2.22 14:50 3.64 3.02 04:25 0.21 13:55 0.62 0.43 04:25 0.017 11:45 0.105 0.061 0.061 -
03/07/2021 05:10 2.03 10:00 3.62 2.96 04:40 0.21 15:15 0.63 0.43 05:10 0.015 15:15 0.109 0.059 0.059 0.04
03/08/2021 03:45 1.98 11:00 3.60 2.94 03:15 0.23 11:00 0.60 0.45 03:20 0.016 11:00 0.103 0.060 0.060 -
03/09/2021 03:25 2.06 11:10 3.38 2.85 03:25 0.24 18:40 0.59 0.43 03:25 0.017 18:40 0.091 0.054 0.054 0.01
03/10/2021 03:10 1.99 16:05 3.45 2.86 02:55 0.24 14:20 0.58 0.42 03:10 0.016 14:20 0.090 0.054 0.054 -
03/11/2021 02:30 2.12 13:40 3.37 2.90 03:30 0.23 12:30 0.57 0.42 02:30 0.019 12:30 0.085 0.054 0.054 -
Page 570 of 1163
50
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:00 1.96 13:30 3.50 2.87 04:05 0.20 13:25 0.60 0.42 04:00 0.014 13:25 0.097 0.054 0.054 -
03/13/2021 05:25 2.05 12:40 3.50 2.93 03:50 0.21 09:40 0.62 0.43 05:25 0.015 09:40 0.100 0.057 0.057 -
03/14/2021 05:35 2.13 15:25 3.61 2.91 04:15 0.20 19:45 0.60 0.42 03:55 0.016 15:25 0.101 0.056 0.056 0.30
03/15/2021 01:55 2.30 11:05 3.39 2.91 01:40 0.26 11:00 0.57 0.41 01:40 0.023 11:00 0.088 0.053 0.053 -
03/16/2021 01:30 2.07 19:10 3.37 2.87 03:05 0.19 17:50 0.57 0.41 03:05 0.014 19:10 0.087 0.053 0.053 -
03/17/2021 03:10 1.94 15:50 3.30 2.79 02:55 0.20 10:05 0.61 0.44 03:00 0.013 20:10 0.084 0.053 0.053 -
03/18/2021 01:25 1.99 16:25 3.43 2.79 01:20 0.21 16:25 0.56 0.41 01:25 0.014 16:25 0.089 0.051 0.051 0.11
03/19/2021 03:10 2.07 15:50 3.28 2.77 01:45 0.21 17:25 0.55 0.40 01:45 0.016 15:50 0.079 0.048 0.048 0.03
03/20/2021 04:05 2.02 16:10 3.44 2.84 04:00 0.22 16:10 0.57 0.42 04:00 0.016 16:10 0.091 0.052 0.052 0.17
03/21/2021 04:10 1.91 12:00 3.43 2.81 04:00 0.17 12:05 0.59 0.39 04:00 0.011 12:00 0.093 0.050 0.050 0.07
03/22/2021 02:45 2.05 10:40 3.53 2.90 02:30 0.19 10:45 0.57 0.42 01:55 0.015 10:45 0.094 0.055 0.055 0.11
03/23/2021 02:15 2.17 12:00 3.35 2.86 04:10 0.20 14:25 0.57 0.41 04:05 0.018 14:30 0.084 0.052 0.052 -
03/24/2021 03:25 2.00 20:05 3.50 2.87 00:50 0.20 20:05 0.55 0.39 03:25 0.014 20:05 0.091 0.050 0.050 0.34
03/25/2021 23:45 2.41 15:15 3.43 2.97 03:05 0.27 18:10 0.58 0.43 03:10 0.026 17:40 0.090 0.056 0.056 0.27
03/26/2021 02:10 1.99 10:40 3.45 2.86 02:50 0.18 10:55 0.56 0.39 02:05 0.013 10:45 0.089 0.050 0.050 -
03/27/2021 04:20 1.96 12:40 3.54 2.91 02:20 0.18 08:55 0.56 0.38 04:10 0.013 08:55 0.089 0.051 0.051 -
03/28/2021 04:20 1.95 14:35 3.91 2.95 02:05 0.18 12:30 0.65 0.42 04:15 0.012 14:35 0.125 0.059 0.059 0.37
03/29/2021 04:10 2.33 10:30 3.55 3.03 02:35 0.23 10:15 0.59 0.42 04:05 0.020 10:20 0.099 0.058 0.058 -
03/30/2021 04:15 2.11 16:40 3.41 2.91 01:50 0.21 11:55 0.54 0.40 01:50 0.016 11:55 0.083 0.053 0.053 -
03/31/2021 02:30 2.06 13:40 3.44 2.87 03:05 0.14 13:25 0.56 0.41 03:05 0.010 13:40 0.090 0.053 0.053 -
04/01/2021 02:10 2.07 13:40 3.51 2.91 02:05 0.18 10:25 0.55 0.41 02:05 0.013 13:40 0.088 0.054 0.054 -
04/02/2021 02:15 2.17 16:50 3.53 2.96 04:00 0.24 11:00 0.57 0.42 04:00 0.019 11:00 0.094 0.057 0.057 -
04/03/2021 03:55 2.03 12:05 3.65 2.98 02:50 0.18 12:05 0.57 0.40 03:55 0.013 12:05 0.100 0.055 0.055 -
04/04/2021 04:10 2.15 13:30 3.75 2.96 02:35 0.18 13:15 0.59 0.40 02:35 0.015 13:15 0.106 0.054 0.054 -
04/05/2021 01:25 2.03 10:30 3.55 2.92 01:40 0.19 09:30 0.59 0.42 01:25 0.014 14:50 0.095 0.056 0.056 -
04/06/2021 02:20 2.03 13:55 3.45 2.91 02:15 0.18 17:15 0.53 0.41 02:15 0.013 13:55 0.083 0.054 0.054 -
04/07/2021 02:20 2.01 21:55 3.46 2.87 02:20 0.17 22:05 0.54 0.38 02:20 0.012 22:05 0.086 0.049 0.049 0.22
04/08/2021 04:20 2.10 17:10 3.48 2.94 04:05 0.20 18:55 0.54 0.40 04:05 0.015 17:30 0.085 0.052 0.052 -
04/09/2021 04:00 2.39 12:30 3.48 2.97 01:20 0.21 12:30 0.54 0.37 03:40 0.020 12:30 0.087 0.049 0.049 0.03
04/10/2021 02:55 2.02 10:35 3.64 2.96 03:00 0.17 10:55 0.57 0.40 03:00 0.012 10:40 0.095 0.055 0.055 0.02
04/11/2021 05:05 2.11 13:55 3.58 2.93 04:30 0.19 11:35 0.58 0.42 02:20 0.015 13:50 0.096 0.056 0.056 -
04/12/2021 03:05 2.11 11:10 3.68 2.97 02:55 0.19 11:00 0.62 0.43 02:55 0.014 11:10 0.110 0.059 0.059 -
04/13/2021 02:10 2.13 17:55 3.42 2.90 02:50 0.24 10:55 0.57 0.43 02:15 0.019 17:55 0.090 0.056 0.056 -
04/14/2021 02:10 2.08 17:20 3.57 2.95 02:15 0.22 10:00 0.56 0.42 02:15 0.016 17:20 0.089 0.057 0.057 -
09/23/2020 23:55 2.60 16:55 3.71 3.32 22:30 0.44 17:50 0.74 0.62 23:25 0.048 16:55 0.129 0.095 0.046 -
09/24/2020 03:00 2.30 17:25 3.44 2.96 03:35 0.35 13:50 0.68 0.54 03:35 0.030 15:30 0.102 0.070 0.070 -
09/25/2020 02:10 2.19 12:05 3.46 2.92 23:55 0.31 12:15 0.66 0.53 23:55 0.028 12:15 0.104 0.068 0.068 -
09/26/2020 03:35 1.95 13:30 3.54 2.88 06:00 0.28 13:15 0.69 0.47 02:15 0.023 13:25 0.112 0.060 0.060 -
09/27/2020 03:45 2.03 11:20 3.59 2.92 01:30 0.25 11:55 0.72 0.52 03:40 0.018 11:55 0.121 0.069 0.069 -
09/28/2020 03:35 2.03 18:50 3.47 2.92 03:20 0.26 14:35 0.70 0.52 03:35 0.018 19:40 0.110 0.069 0.069 -
09/29/2020 02:25 2.01 17:15 3.54 2.92 03:35 0.25 16:50 0.63 0.47 01:15 0.019 17:15 0.104 0.061 0.061 -
09/30/2020 02:45 2.23 19:35 3.62 2.97 00:50 0.29 18:30 0.63 0.47 02:55 0.024 18:40 0.105 0.062 0.062 -
10/01/2020 03:30 2.14 19:55 3.90 2.93 03:00 0.27 08:20 0.62 0.44 03:30 0.020 19:55 0.119 0.058 0.058 -
10/02/2020 01:20 2.29 11:00 3.59 3.02 01:15 0.25 11:00 0.62 0.44 01:15 0.021 11:00 0.105 0.060 0.060 -
10/03/2020 03:30 2.14 11:50 3.68 3.01 03:40 0.22 14:00 0.62 0.45 03:40 0.017 12:50 0.104 0.062 0.062 0.01
10/04/2020 03:35 2.05 12:55 3.65 2.97 03:35 0.19 11:35 0.60 0.43 03:35 0.014 12:55 0.104 0.058 0.058 0.01
10/05/2020 02:10 2.14 19:15 3.51 3.01 01:55 0.20 14:40 0.58 0.44 01:55 0.016 14:45 0.093 0.060 0.060 -
10/06/2020 02:55 2.24 16:55 3.56 3.04 03:00 0.28 14:00 0.60 0.43 02:50 0.024 16:55 0.097 0.060 0.060 -
10/07/2020 02:00 2.47 17:10 3.66 3.12 02:15 0.21 20:30 0.62 0.43 02:05 0.021 14:15 0.101 0.061 0.061 -
10/08/2020 01:55 2.40 16:50 3.61 3.13 02:50 0.20 11:15 0.58 0.43 02:50 0.018 11:15 0.092 0.061 0.061 -
10/09/2020 02:05 2.37 23:50 3.98 3.17 02:05 0.20 23:50 0.66 0.46 02:05 0.018 23:50 0.131 0.069 0.069 0.64
10/10/2020 23:40 2.73 00:00 3.94 3.33 23:30 0.36 02:05 0.67 0.52 23:30 0.041 01:35 0.127 0.080 0.080 1.04
10/11/2020 05:10 2.31 13:25 3.96 3.21 03:15 0.28 16:25 0.64 0.48 03:15 0.025 13:05 0.122 0.074 0.074 0.53
10/12/2020 02:45 2.34 16:35 3.59 3.05 02:45 0.27 16:35 0.63 0.46 02:45 0.024 16:35 0.107 0.065 0.065 -
10/13/2020 01:35 2.23 07:15 4.05 3.14 01:35 0.28 07:15 0.75 0.50 01:35 0.023 07:20 0.153 0.072 0.072 0.61
10/14/2020 02:55 2.22 19:15 3.65 3.06 03:10 0.31 17:25 0.62 0.47 03:10 0.025 17:25 0.105 0.065 0.065 -
10/15/2020 03:05 2.29 17:40 3.57 3.02 01:00 0.29 16:25 0.62 0.46 03:10 0.025 17:40 0.103 0.063 0.063 -
10/16/2020 03:30 2.27 15:20 3.43 2.98 01:10 0.24 12:15 0.62 0.45 03:30 0.021 12:15 0.092 0.060 0.060 -
10/17/2020 03:40 2.45 12:00 3.66 3.13 01:15 0.25 12:00 0.63 0.45 03:35 0.025 12:00 0.110 0.065 0.065 0.01
10/18/2020 01:40 2.36 12:45 3.69 3.07 03:40 0.27 12:45 0.63 0.46 01:35 0.026 12:45 0.111 0.064 0.064 0.03
10/19/2020 02:00 2.22 16:30 3.50 3.00 01:55 0.26 16:25 0.60 0.44 01:55 0.021 16:25 0.098 0.059 0.059 0.05
10/20/2020 01:15 2.30 11:15 3.50 2.98 01:10 0.25 10:35 0.62 0.44 01:10 0.022 11:20 0.093 0.059 0.059 -
10/21/2020 02:20 2.08 10:40 3.43 2.94 02:15 0.23 18:25 0.61 0.45 02:15 0.017 18:25 0.096 0.059 0.059 0.01
10/22/2020 01:05 2.29 18:05 3.48 2.91 01:10 0.28 18:00 0.62 0.46 01:10 0.024 18:05 0.101 0.058 0.058 -
10/23/2020 02:25 2.04 19:30 3.51 2.86 02:10 0.24 19:25 0.64 0.45 02:15 0.017 19:25 0.106 0.057 0.057 0.20
10/24/2020 04:05 2.13 13:50 3.59 2.85 03:25 0.29 13:50 0.66 0.47 03:35 0.022 13:50 0.113 0.059 0.059 0.02
10/25/2020 03:30 2.13 10:30 3.42 2.84 04:15 0.27 10:35 0.61 0.46 03:20 0.021 10:30 0.096 0.058 0.058 -
10/26/2020 02:55 2.11 10:35 3.32 2.75 00:30 0.29 10:25 0.59 0.44 02:20 0.022 10:35 0.089 0.052 0.052 -
10/27/2020 01:55 2.00 18:35 3.42 2.76 02:00 0.24 17:35 0.63 0.45 01:55 0.017 18:30 0.097 0.054 0.054 -
10/28/2020 02:35 2.04 12:35 3.57 2.76 04:10 0.26 12:35 0.63 0.45 02:30 0.019 12:35 0.106 0.054 0.054 -
10/29/2020 03:20 2.06 18:20 3.24 2.76 01:50 0.30 18:15 0.57 0.45 03:20 0.023 18:20 0.083 0.053 0.053 -
10/30/2020 02:25 1.99 08:25 3.34 2.83 02:20 0.24 08:25 0.60 0.45 02:25 0.016 08:25 0.092 0.055 0.055 0.10
10/31/2020 02:15 1.99 13:10 3.41 2.76 02:00 0.28 15:30 0.64 0.46 02:00 0.020 11:55 0.096 0.056 0.056 -
11/01/2020 02:25 1.97 11:15 3.57 2.80 03:30 0.24 11:30 0.66 0.46 03:30 0.016 11:30 0.112 0.058 0.058 -
Page 571 of 1163
51
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/02/2020 03:30 2.14 18:20 3.63 2.85 03:30 0.21 12:00 0.69 0.44 03:30 0.016 12:00 0.117 0.055 0.055 -
11/03/2020 02:50 2.10 10:05 3.79 2.97 03:05 0.23 10:05 0.71 0.47 03:05 0.017 10:05 0.130 0.064 0.064 0.83
11/04/2020 03:25 2.27 17:00 3.31 2.88 02:50 0.21 20:10 0.61 0.44 02:50 0.018 20:10 0.087 0.055 0.055 0.09
11/05/2020 04:40 2.32 17:10 3.51 2.96 04:20 0.33 17:05 0.62 0.47 04:25 0.029 17:10 0.102 0.062 0.062 0.34
11/06/2020 04:25 2.38 16:55 3.28 2.87 04:00 0.32 17:00 0.60 0.46 04:00 0.030 17:00 0.088 0.056 0.056 0.10
11/07/2020 01:00 2.21 11:10 3.42 2.86 03:20 0.18 11:10 0.62 0.42 03:25 0.017 11:15 0.098 0.053 0.053 0.07
11/08/2020 03:10 2.23 14:00 3.44 2.86 03:10 0.24 13:45 0.63 0.44 03:05 0.020 13:45 0.100 0.056 0.056 0.01
11/09/2020 04:00 1.96 16:40 3.30 2.75 04:05 0.22 07:15 0.60 0.46 04:00 0.015 16:40 0.086 0.055 0.055 0.04
11/10/2020 04:00 1.95 18:50 3.25 2.72 03:15 0.25 18:45 0.61 0.45 03:55 0.017 18:45 0.088 0.052 0.052 0.03
11/11/2020 02:40 2.00 14:50 3.25 2.74 01:50 0.29 13:55 0.59 0.46 02:40 0.021 14:55 0.086 0.054 0.054 -
11/12/2020 02:50 1.89 20:50 3.52 2.84 02:50 0.22 20:45 0.61 0.44 02:50 0.014 20:45 0.099 0.055 0.055 0.16
11/13/2020 01:30 2.38 18:20 3.20 2.88 01:25 0.32 09:30 0.64 0.46 01:30 0.029 09:30 0.082 0.057 0.057 0.38
11/14/2020 02:40 2.01 18:05 3.62 2.82 03:05 0.27 17:25 0.66 0.46 02:40 0.020 18:10 0.114 0.058 0.058 0.47
11/15/2020 05:15 2.26 13:45 3.30 2.81 04:15 0.30 13:15 0.58 0.44 05:25 0.025 13:15 0.085 0.053 0.053 0.19
11/16/2020 03:55 2.04 12:05 4.62 2.80 03:15 0.22 12:05 0.90 0.42 03:15 0.016 12:05 0.223 0.052 0.052 0.31
11/17/2020 04:30 2.05 19:55 3.40 2.77 02:50 0.24 19:30 0.57 0.41 02:10 0.018 19:45 0.089 0.050 0.050 0.20
11/18/2020 03:45 2.04 18:35 3.33 2.81 02:50 0.28 18:30 0.57 0.44 02:50 0.020 18:30 0.087 0.054 0.054 0.30
11/19/2020 02:25 2.22 14:10 3.37 2.84 01:50 0.30 14:10 0.57 0.44 01:55 0.024 14:10 0.088 0.054 0.054 0.50
11/20/2020 02:50 2.09 13:25 3.31 2.77 03:15 0.29 13:25 0.59 0.44 02:50 0.023 13:25 0.088 0.053 0.053 0.01
11/21/2020 03:50 2.04 16:00 3.51 2.81 03:05 0.29 12:55 0.64 0.47 03:20 0.021 12:55 0.103 0.059 0.059 -
11/22/2020 03:25 1.90 18:25 3.71 2.85 03:10 0.28 13:30 0.69 0.51 03:10 0.018 18:25 0.120 0.067 0.067 0.21
11/23/2020 04:10 2.08 08:15 4.46 2.92 02:55 0.29 08:05 0.74 0.49 04:10 0.021 08:25 0.174 0.064 0.064 0.14
11/24/2020 03:05 1.92 08:25 3.58 2.78 03:05 0.24 22:00 0.64 0.46 02:55 0.016 16:55 0.090 0.056 0.056 0.21
11/25/2020 02:40 2.02 13:35 3.26 2.81 02:10 0.34 14:20 0.63 0.50 02:15 0.024 14:20 0.084 0.059 0.059 0.05
11/26/2020 04:50 1.91 11:10 3.54 2.77 04:40 0.25 11:10 0.70 0.46 04:45 0.016 11:10 0.116 0.057 0.057 0.02
11/27/2020 03:55 1.93 13:30 3.35 2.73 03:50 0.23 13:15 0.62 0.44 03:50 0.015 13:30 0.095 0.052 0.052 -
11/28/2020 05:50 2.05 14:50 3.45 2.78 05:50 0.25 14:45 0.67 0.46 05:50 0.018 14:45 0.106 0.056 0.056 0.05
11/29/2020 03:15 2.07 12:50 3.41 2.80 04:25 0.24 20:35 0.65 0.47 03:05 0.018 16:10 0.099 0.059 0.059 -
11/30/2020 02:45 2.06 13:05 3.48 2.92 02:40 0.26 09:35 0.68 0.51 02:40 0.019 13:05 0.105 0.065 0.065 0.36
12/01/2020 04:15 2.10 13:50 3.40 2.79 04:05 0.29 13:55 0.66 0.48 04:10 0.022 13:50 0.103 0.058 0.058 -
12/02/2020 04:15 1.94 18:05 3.30 2.76 04:15 0.23 13:40 0.60 0.46 04:15 0.015 13:40 0.089 0.055 0.055 0.01
12/03/2020 02:40 1.90 19:45 3.29 2.69 02:30 0.23 15:05 0.59 0.45 02:40 0.014 19:45 0.089 0.052 0.052 -
12/04/2020 03:55 1.95 11:55 3.30 2.75 03:50 0.25 10:25 0.60 0.45 03:50 0.016 16:00 0.087 0.054 0.054 -
12/05/2020 03:25 1.99 13:35 3.45 2.80 03:35 0.24 13:30 0.67 0.46 03:25 0.017 13:30 0.106 0.057 0.057 0.03
12/06/2020 03:00 2.01 12:30 3.53 2.83 02:55 0.25 12:20 0.67 0.46 02:55 0.017 12:20 0.111 0.058 0.058 0.03
12/07/2020 04:30 1.90 12:00 3.33 2.77 03:05 0.20 12:05 0.58 0.42 03:05 0.013 12:05 0.087 0.051 0.051 -
12/08/2020 02:40 1.98 19:25 3.59 3.07 02:40 0.22 16:15 0.61 0.47 02:40 0.015 19:05 0.102 0.067 0.067 0.87
12/09/2020 05:15 2.35 17:05 3.25 2.84 04:05 0.29 17:30 0.57 0.41 05:10 0.026 17:30 0.077 0.049 0.049 0.17
12/10/2020 03:55 2.00 19:25 3.29 2.75 03:55 0.20 21:20 0.55 0.40 03:55 0.014 17:15 0.078 0.049 0.049 0.07
12/11/2020 05:00 2.08 12:45 3.29 2.73 05:05 0.25 19:05 0.54 0.41 03:20 0.019 13:00 0.079 0.048 0.048 0.02
12/12/2020 04:05 1.94 15:45 3.57 2.73 03:50 0.22 15:45 0.62 0.42 04:05 0.014 15:45 0.104 0.051 0.051 0.01
12/13/2020 06:35 2.18 11:35 3.57 2.87 03:00 0.27 09:10 0.66 0.45 02:55 0.022 11:35 0.100 0.058 0.058 0.24
12/14/2020 03:10 2.06 19:05 3.64 2.80 02:40 0.25 19:10 0.60 0.43 02:45 0.018 19:05 0.101 0.052 0.052 0.05
12/15/2020 03:35 2.07 10:35 3.70 2.90 03:35 0.24 16:00 0.64 0.44 03:15 0.018 16:00 0.108 0.058 0.058 0.58
12/16/2020 02:05 1.95 14:05 3.55 2.81 01:55 0.22 14:05 0.61 0.45 01:55 0.015 14:05 0.103 0.055 0.055 0.39
12/17/2020 04:00 2.06 22:55 3.31 2.75 03:50 0.26 11:15 0.60 0.43 03:40 0.019 22:55 0.082 0.050 0.050 0.08
12/18/2020 03:15 2.03 14:00 3.50 2.84 03:05 0.24 14:00 0.63 0.46 03:05 0.017 14:00 0.104 0.057 0.057 0.25
12/19/2020 05:15 1.89 22:10 3.42 2.80 03:40 0.23 17:05 0.67 0.46 05:15 0.014 17:05 0.105 0.058 0.058 0.37
12/20/2020 03:10 2.12 13:40 3.39 2.84 03:05 0.26 13:35 0.60 0.45 03:05 0.020 13:35 0.094 0.056 0.056 0.04
12/21/2020 03:15 2.51 16:35 3.93 3.04 03:10 0.37 16:35 0.72 0.50 03:15 0.036 16:35 0.140 0.068 0.068 1.07
12/22/2020 04:30 2.21 16:25 3.43 2.82 02:55 0.27 13:50 0.64 0.45 03:00 0.022 16:25 0.098 0.056 0.056 -
12/23/2020 02:10 2.10 11:20 3.78 2.78 02:05 0.27 11:15 0.69 0.46 02:05 0.020 11:20 0.127 0.056 0.056 -
12/24/2020 04:40 2.14 13:40 3.69 2.84 03:10 0.28 13:10 0.72 0.46 04:40 0.022 13:40 0.124 0.058 0.058 -
12/25/2020 05:40 2.05 15:35 4.57 2.86 04:30 0.26 15:35 0.97 0.47 04:40 0.019 15:35 0.236 0.061 0.061 0.49
12/26/2020 03:35 2.24 16:20 3.64 2.87 04:30 0.22 16:20 0.73 0.46 04:30 0.018 16:20 0.126 0.059 0.059 0.02
12/27/2020 05:50 1.91 13:45 3.85 2.85 04:35 0.23 13:45 0.69 0.47 04:30 0.015 13:45 0.131 0.061 0.061 0.13
12/28/2020 03:00 1.95 10:20 4.11 2.75 03:00 0.24 10:20 0.80 0.46 03:00 0.016 10:20 0.167 0.056 0.056 -
12/29/2020 03:10 2.04 19:45 3.35 2.76 02:30 0.28 11:40 0.65 0.47 02:30 0.020 11:40 0.097 0.056 0.056 0.14
12/30/2020 03:20 2.47 21:00 3.53 2.95 03:30 0.40 21:00 0.69 0.53 03:30 0.039 21:00 0.114 0.068 0.068 0.78
12/31/2020 03:35 2.27 16:30 3.47 2.86 03:35 0.35 17:55 0.67 0.50 03:35 0.029 16:30 0.104 0.062 0.062 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 11.870 30.65
Average 2.89 0.45 0.058
Page 572 of 1163
52
Page 573 of 1163
53
AUB_A16_80956
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.07 3.29 0.243
Minimum 1.56 0.87 0.042
Maximum 3.04 4.51 0.575
Min Time 12/17/2020 3:00:00 AM 12/17/2020 4:00:00 AM 12/17/2020 4:00:00 AM
Max Time 01/02/2021 10:00:00 PM 01/02/2021 10:00:00 PM 01/02/2021 10:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.761
VFINAL (ft/s) 99.761
QFINAL (MGD - Total MG) 99.761
Pipe Round (18 in H)
Silt 0.00 (in)
Page 574 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A16_80956
Page 575 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Scattergraph Report
AUB_A16_80956
Page 576 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A16_80956Pipe: Round (18 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 05:35 1.87 16:10 2.36 2.10 07:25 2.15 16:05 4.14 3.33 05:50 0.154 16:05 0.364 0.250 0.250 0.51
01/02/2021 02:15 1.82 22:10 3.09 2.22 06:20 2.27 22:00 4.62 3.52 06:00 0.150 22:10 0.594 0.296 0.296 1.69
01/03/2021 08:00 1.89 00:25 3.04 2.24 06:15 1.86 00:25 4.50 3.52 06:15 0.131 00:25 0.574 0.296 0.296 0.65
01/04/2021 05:15 1.82 21:05 2.34 2.10 04:05 1.96 19:10 4.01 3.44 04:05 0.141 21:05 0.348 0.258 0.258 0.48
01/05/2021 02:10 1.83 19:00 2.27 2.09 03:25 2.24 19:00 4.15 3.37 04:05 0.150 19:00 0.347 0.252 0.252 0.52
01/06/2021 05:15 1.87 07:20 2.21 2.06 03:50 2.37 20:10 3.88 3.39 03:50 0.157 20:10 0.301 0.247 0.247 0.22
01/07/2021 05:20 1.77 00:00 2.23 2.03 04:15 2.13 19:05 3.95 3.30 04:15 0.136 19:05 0.319 0.236 0.236 -
01/08/2021 02:00 1.78 16:45 2.24 2.04 02:40 2.08 16:40 4.00 3.33 02:40 0.136 16:45 0.328 0.240 0.240 0.22
01/09/2021 00:40 1.79 10:00 2.59 2.18 03:30 1.97 12:20 4.11 3.24 06:50 0.154 10:20 0.348 0.254 0.254 -
01/10/2021 07:15 1.78 13:30 2.32 2.05 05:40 2.02 16:05 4.07 3.38 05:40 0.127 16:05 0.348 0.247 0.247 0.07
01/11/2021 01:30 1.76 21:45 2.40 2.09 02:20 1.91 14:25 4.09 3.37 02:20 0.124 21:45 0.363 0.253 0.253 1.06
01/12/2021 02:45 1.97 19:25 2.68 2.31 01:35 2.71 19:30 4.40 3.84 01:40 0.192 19:30 0.467 0.332 0.332 2.10
01/13/2021 06:25 1.90 00:55 2.73 2.12 03:55 2.19 00:50 4.46 3.44 03:55 0.156 00:50 0.485 0.263 0.263 0.09
01/14/2021 05:55 1.83 23:55 2.21 2.05 02:35 2.04 20:05 4.11 3.32 02:35 0.145 20:05 0.326 0.241 0.241 0.01
01/15/2021 01:25 1.79 07:35 2.26 2.03 02:20 2.22 18:05 3.88 3.29 04:00 0.143 18:05 0.297 0.235 0.235 0.09
01/16/2021 05:00 1.78 15:20 2.31 2.03 04:55 1.87 15:20 4.05 3.27 05:00 0.110 15:20 0.347 0.236 0.236 -
01/17/2021 07:20 1.72 12:40 2.24 2.02 04:50 1.77 12:05 3.93 3.26 06:05 0.107 12:40 0.321 0.234 0.234 0.10
01/18/2021 01:50 1.80 18:00 2.24 2.03 03:15 1.72 18:05 3.96 3.32 03:15 0.108 18:00 0.322 0.239 0.239 -
01/19/2021 03:55 1.82 19:15 2.19 2.02 03:20 1.53 19:10 3.95 3.20 03:20 0.097 19:15 0.311 0.227 0.227 0.01
01/20/2021 02:20 1.82 09:10 2.32 2.07 05:05 1.50 15:25 3.91 3.18 05:05 0.112 19:35 0.314 0.232 0.232 -
01/21/2021 01:05 1.79 15:20 2.27 2.03 03:15 1.76 15:20 4.19 3.23 04:45 0.113 15:20 0.350 0.231 0.231 0.11
01/22/2021 03:00 1.76 09:50 2.34 2.05 04:20 1.86 15:20 3.94 3.20 04:15 0.112 15:25 0.329 0.234 0.234 -
01/23/2021 02:45 1.88 07:40 2.31 2.12 05:15 1.86 13:35 3.99 3.16 05:15 0.124 13:40 0.334 0.240 0.240 -
01/24/2021 05:30 1.84 18:50 2.46 2.13 05:35 1.86 18:45 4.06 3.30 05:35 0.116 18:50 0.380 0.254 0.254 0.16
01/25/2021 03:00 1.91 04:55 2.32 2.11 03:40 2.29 21:00 4.02 3.40 03:40 0.161 21:00 0.343 0.255 0.255 0.04
01/26/2021 03:00 1.83 08:05 2.25 2.06 04:10 1.70 13:00 3.95 3.18 04:10 0.108 17:45 0.320 0.233 0.233 -
01/27/2021 01:15 1.81 18:10 2.42 2.04 03:25 1.67 18:05 4.13 3.24 03:25 0.104 18:10 0.379 0.234 0.234 0.14
01/28/2021 01:05 1.83 10:05 2.29 2.08 03:50 2.13 11:40 3.84 3.25 02:35 0.140 16:35 0.302 0.241 0.241 0.24
01/29/2021 04:45 1.79 23:40 2.31 2.09 03:15 1.67 17:55 4.00 3.17 04:40 0.100 17:50 0.339 0.237 0.237 0.03
01/30/2021 05:45 1.88 22:10 2.33 2.09 03:30 2.05 12:35 3.97 3.27 03:45 0.137 17:55 0.323 0.244 0.244 0.07
01/31/2021 06:45 1.75 18:00 2.27 2.07 05:40 1.96 11:00 4.06 3.32 05:40 0.130 11:00 0.335 0.244 0.244 0.12
02/01/2021 06:00 1.76 20:00 2.31 2.06 02:55 2.07 20:00 4.09 3.36 03:05 0.133 20:00 0.351 0.246 0.246 0.82
02/02/2021 02:05 1.84 18:45 2.27 2.05 04:10 1.75 18:45 4.06 3.36 04:10 0.116 18:45 0.339 0.243 0.243 0.31
02/03/2021 01:20 1.86 05:55 2.23 2.03 05:35 2.27 18:40 3.95 3.34 04:35 0.152 18:45 0.313 0.239 0.239 0.06
02/04/2021 08:55 1.79 14:55 2.48 2.07 04:10 2.04 14:55 4.11 3.20 04:05 0.134 14:55 0.389 0.235 0.235 0.07
02/05/2021 06:50 1.90 00:00 2.28 2.08 03:35 1.80 13:05 4.02 3.16 03:35 0.124 22:45 0.330 0.235 0.235 0.01
02/06/2021 02:35 1.90 08:50 2.35 2.11 05:55 1.80 11:05 3.99 3.14 05:55 0.120 11:05 0.349 0.239 0.239 0.01
02/07/2021 06:45 1.70 11:20 2.41 2.08 05:25 1.61 11:20 4.07 3.23 05:25 0.095 11:20 0.370 0.241 0.241 -
02/08/2021 01:40 1.78 18:25 2.30 2.03 05:05 1.60 18:25 3.96 3.18 03:20 0.103 18:25 0.338 0.229 0.229 -
02/09/2021 00:45 1.81 19:50 2.29 2.03 02:30 1.78 19:55 3.98 3.22 02:30 0.118 19:55 0.334 0.231 0.231 -
02/10/2021 00:55 1.84 23:50 2.36 2.08 02:50 1.73 18:00 3.99 3.24 02:50 0.116 18:00 0.326 0.239 0.239 -
02/11/2021 01:25 1.90 09:10 2.32 2.09 04:45 1.85 11:30 3.98 3.26 04:45 0.125 17:15 0.326 0.243 0.243 -
02/12/2021 05:00 1.80 09:15 2.36 2.08 05:10 1.82 12:10 4.10 3.20 04:55 0.110 12:10 0.351 0.238 0.238 -
02/13/2021 01:25 1.92 08:45 2.29 2.08 04:40 1.97 11:30 3.94 3.24 04:40 0.133 11:30 0.305 0.240 0.240 0.08
02/14/2021 03:15 1.88 00:05 2.30 2.11 05:05 1.97 10:20 4.06 3.30 05:05 0.133 14:35 0.338 0.250 0.250 0.71
02/15/2021 01:00 2.06 14:35 2.96 2.35 04:40 2.87 14:45 4.49 3.73 04:45 0.210 14:40 0.548 0.334 0.334 0.78
02/16/2021 23:10 2.02 06:25 2.44 2.15 04:00 2.83 18:40 4.12 3.44 04:00 0.200 18:40 0.366 0.264 0.264 0.07
02/17/2021 05:45 1.71 00:00 2.24 2.05 03:45 1.95 20:10 3.96 3.24 03:45 0.126 20:20 0.314 0.236 0.236 -
02/18/2021 05:30 1.83 23:35 2.27 2.06 03:25 1.70 18:25 4.06 3.23 03:25 0.114 18:25 0.338 0.236 0.236 0.09
02/19/2021 05:40 1.77 19:50 2.21 2.05 02:45 1.79 19:55 4.02 3.24 02:50 0.120 19:55 0.323 0.234 0.234 0.17
02/20/2021 04:10 1.82 12:40 2.36 2.07 05:10 1.77 12:40 4.13 3.29 05:10 0.120 12:40 0.366 0.242 0.242 0.07
02/21/2021 02:20 1.78 19:05 2.33 2.09 05:10 1.92 19:05 4.11 3.37 05:10 0.127 19:05 0.357 0.253 0.253 0.42
02/22/2021 04:50 1.95 13:50 2.67 2.20 05:25 2.32 13:45 4.38 3.61 05:20 0.174 13:50 0.461 0.291 0.291 0.98
02/23/2021 04:45 1.85 19:15 2.24 2.05 03:00 1.95 19:15 4.05 3.30 03:00 0.126 19:15 0.332 0.240 0.240 0.27
02/24/2021 03:40 1.82 01:10 2.23 2.04 03:40 1.68 20:50 4.00 3.26 03:40 0.102 20:50 0.325 0.235 0.235 -
02/25/2021 05:25 1.77 23:30 2.31 2.05 03:45 1.82 13:20 3.98 3.27 03:45 0.123 13:20 0.319 0.237 0.237 0.18
02/26/2021 01:55 1.75 19:15 2.21 2.04 03:40 1.81 16:05 4.01 3.30 03:40 0.118 16:05 0.315 0.238 0.238 0.10
02/27/2021 06:45 1.76 23:10 2.27 2.03 05:00 1.89 10:10 3.95 3.31 05:00 0.115 11:35 0.317 0.237 0.237 0.02
02/28/2021 07:50 1.76 13:45 2.32 2.03 05:40 1.79 13:50 4.07 3.31 05:45 0.108 13:50 0.351 0.239 0.239 0.02
03/01/2021 04:55 1.80 21:35 2.25 2.03 02:50 1.84 17:55 4.02 3.31 02:50 0.126 21:35 0.328 0.237 0.237 -
03/02/2021 04:00 1.77 12:50 2.20 2.02 04:05 1.71 20:45 3.93 3.26 04:05 0.099 12:50 0.313 0.231 0.231 -
03/03/2021 01:45 1.78 23:55 2.34 2.04 03:20 1.55 17:35 4.00 3.22 03:20 0.102 17:35 0.326 0.233 0.233 -
03/04/2021 01:20 1.81 00:00 2.37 2.05 04:30 1.78 19:15 4.01 3.26 04:30 0.112 19:15 0.344 0.237 0.237 0.20
03/05/2021 04:10 1.82 23:55 2.31 2.05 04:10 1.79 21:05 3.95 3.29 04:10 0.109 21:05 0.310 0.239 0.239 0.05
03/06/2021 07:10 1.83 10:20 2.32 2.07 03:50 2.04 12:15 4.12 3.33 05:35 0.131 11:55 0.351 0.246 0.246 -
03/07/2021 06:40 1.80 15:50 2.42 2.08 06:05 1.85 12:20 4.12 3.31 06:05 0.116 15:50 0.372 0.248 0.248 0.04
03/08/2021 02:25 1.86 13:10 2.42 2.08 03:20 1.85 19:35 4.05 3.32 03:20 0.125 19:35 0.340 0.247 0.247 -
03/09/2021 01:15 1.81 08:20 2.34 2.07 03:35 1.84 20:05 4.03 3.26 04:05 0.112 20:05 0.336 0.241 0.241 0.01
03/10/2021 01:40 1.85 08:15 2.26 2.08 03:40 1.93 16:00 4.02 3.31 04:10 0.125 16:00 0.328 0.245 0.245 -
03/11/2021 01:10 1.86 07:50 2.32 2.07 04:05 1.86 17:15 3.99 3.23 04:05 0.118 17:20 0.320 0.237 0.237 -
Page 577 of 1163
57
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 03:25 1.81 18:00 3.12 2.08 03:25 1.80 18:00 4.69 3.19 03:25 0.108 18:00 0.621 0.239 0.239 -
03/13/2021 04:50 1.83 13:00 2.34 2.07 04:05 1.92 13:05 4.19 3.27 04:25 0.123 13:05 0.366 0.242 0.242 -
03/14/2021 04:15 1.86 11:05 2.32 2.09 05:05 1.76 11:05 4.10 3.29 05:05 0.113 11:05 0.354 0.246 0.246 0.30
03/15/2021 02:10 1.85 20:15 2.23 2.04 03:15 1.81 20:10 4.02 3.25 03:15 0.115 20:10 0.326 0.234 0.234 -
03/16/2021 00:10 1.81 21:00 2.33 2.06 02:45 2.01 21:00 4.08 3.31 02:45 0.137 21:00 0.355 0.242 0.242 -
03/17/2021 02:40 1.86 23:55 2.25 2.04 03:20 2.10 10:50 4.08 3.31 03:20 0.137 10:50 0.320 0.238 0.238 -
03/18/2021 04:30 1.75 06:55 2.31 2.05 02:00 2.07 16:30 4.03 3.35 02:40 0.131 16:40 0.334 0.244 0.244 0.11
03/19/2021 03:35 1.73 20:35 3.13 2.03 02:30 1.89 12:00 4.11 3.28 02:30 0.121 20:35 0.435 0.235 0.235 0.03
03/20/2021 05:50 1.77 13:45 2.34 2.03 04:15 2.02 13:40 4.06 3.34 04:15 0.120 13:45 0.355 0.241 0.241 0.17
03/21/2021 01:00 1.77 10:25 2.40 2.05 04:30 1.97 10:30 4.22 3.31 03:55 0.121 10:30 0.381 0.242 0.242 0.07
03/22/2021 03:40 1.77 08:40 2.20 2.02 02:05 2.13 13:20 3.97 3.36 02:05 0.132 13:20 0.311 0.240 0.240 0.11
03/23/2021 02:55 1.75 09:00 2.59 2.04 03:20 1.74 15:05 4.05 3.30 03:20 0.107 15:05 0.341 0.239 0.239 -
03/24/2021 03:30 1.64 19:30 2.29 2.04 02:50 1.99 16:00 4.08 3.28 02:50 0.125 16:00 0.343 0.238 0.238 0.34
03/25/2021 03:25 1.74 17:45 2.36 2.05 02:25 2.13 17:40 4.15 3.41 02:15 0.143 17:45 0.367 0.248 0.248 0.27
03/26/2021 02:55 1.84 11:45 2.22 2.05 03:35 2.16 11:45 3.97 3.34 03:35 0.136 11:45 0.322 0.243 0.243 -
03/27/2021 05:40 1.82 06:45 2.27 2.06 04:00 2.05 12:00 3.95 3.31 04:00 0.133 13:30 0.313 0.242 0.242 -
03/28/2021 04:55 1.80 18:50 2.43 2.08 04:30 1.79 18:45 4.20 3.32 04:30 0.108 18:50 0.385 0.250 0.250 0.37
03/29/2021 23:45 1.81 12:05 2.39 2.10 03:00 1.78 20:00 4.10 3.27 03:00 0.112 12:05 0.365 0.246 0.246 -
03/30/2021 02:05 1.78 08:10 2.19 2.04 04:20 2.06 09:25 3.94 3.32 01:45 0.126 20:30 0.307 0.239 0.239 -
03/31/2021 04:50 1.79 06:45 2.24 2.08 02:55 2.15 10:55 4.14 3.36 02:55 0.144 10:55 0.331 0.249 0.249 -
04/01/2021 03:30 1.83 19:50 2.26 2.04 02:35 1.84 19:50 4.06 3.29 02:35 0.118 19:50 0.337 0.237 0.237 -
04/02/2021 02:25 1.80 18:25 2.25 2.04 02:20 1.84 18:15 3.95 3.28 02:20 0.112 18:25 0.325 0.237 0.237 -
04/03/2021 04:20 1.73 11:00 2.39 2.06 03:25 2.09 10:55 4.20 3.36 03:25 0.137 10:55 0.375 0.247 0.247 -
04/04/2021 03:55 1.74 10:45 2.30 2.02 04:20 1.67 10:45 4.07 3.31 04:20 0.096 10:45 0.345 0.237 0.237 -
04/05/2021 03:20 1.79 11:10 2.25 2.04 02:05 2.01 11:15 4.14 3.40 02:05 0.123 11:10 0.341 0.246 0.246 -
04/06/2021 02:20 1.71 20:25 2.41 2.04 03:20 1.91 20:20 4.17 3.43 03:20 0.128 20:20 0.377 0.248 0.248 -
04/07/2021 01:05 1.78 22:55 2.30 2.05 02:35 2.04 20:25 4.21 3.40 02:35 0.129 20:15 0.329 0.246 0.246 0.22
04/08/2021 07:45 1.82 07:05 2.25 2.08 01:35 2.21 20:45 3.89 3.31 02:05 0.146 20:45 0.317 0.245 0.245 -
04/09/2021 04:40 1.82 06:40 2.30 2.08 02:30 1.93 12:40 3.92 3.24 02:30 0.127 18:05 0.314 0.240 0.240 0.03
04/10/2021 05:05 1.84 12:40 2.34 2.10 02:15 1.75 11:05 4.02 3.26 05:05 0.115 12:45 0.351 0.247 0.247 0.02
04/11/2021 05:25 1.75 08:30 2.49 2.11 02:45 1.67 08:30 4.28 3.30 05:15 0.101 08:30 0.409 0.252 0.252 -
04/12/2021 04:10 1.82 19:45 2.29 2.07 02:45 1.92 19:30 4.23 3.32 02:45 0.123 19:30 0.351 0.244 0.244 -
04/13/2021 01:30 1.58 06:30 2.29 2.06 02:40 2.14 18:15 3.95 3.32 01:40 0.134 18:20 0.323 0.243 0.243 -
04/14/2021 04:10 1.81 23:20 2.23 2.06 02:30 1.83 20:25 3.98 3.35 02:30 0.113 20:25 0.320 0.245 0.244 -
09/22/2020 23:55 1.94 19:20 2.29 2.14 22:40 2.75 19:20 4.08 3.68 23:55 0.185 19:20 0.346 0.283 0.143 -
09/23/2020 23:35 1.77 19:40 2.58 2.15 02:50 1.91 20:15 4.15 3.50 02:25 0.133 16:30 0.392 0.274 0.274 -
09/24/2020 00:20 1.86 23:15 2.33 2.14 03:25 2.08 10:50 4.02 3.40 03:25 0.154 18:20 0.348 0.261 0.261 -
09/25/2020 00:10 1.92 01:40 2.34 2.13 03:30 2.33 16:30 3.99 3.42 03:15 0.173 10:25 0.320 0.261 0.261 -
09/26/2020 00:40 1.90 13:20 2.41 2.13 04:05 2.04 10:55 4.14 3.40 03:20 0.140 13:20 0.374 0.261 0.261 -
09/27/2020 23:55 1.87 12:00 2.39 2.14 04:05 2.07 08:35 4.15 3.34 04:05 0.146 08:45 0.365 0.259 0.259 -
09/28/2020 23:45 1.91 17:40 2.41 2.13 00:30 2.10 11:00 4.15 3.29 01:20 0.143 17:40 0.375 0.252 0.252 -
09/29/2020 05:05 1.89 22:55 2.38 2.13 00:45 2.11 10:10 4.03 3.29 02:25 0.148 10:10 0.328 0.252 0.252 -
09/30/2020 03:00 1.92 07:20 2.34 2.12 00:55 2.12 18:35 4.00 3.26 03:00 0.148 19:40 0.338 0.249 0.249 -
10/01/2020 00:10 1.87 08:30 2.34 2.12 01:45 2.10 19:45 4.08 3.28 03:20 0.140 19:05 0.346 0.250 0.250 -
10/02/2020 00:15 1.87 22:45 2.41 2.11 00:35 2.10 10:20 3.99 3.30 03:35 0.136 10:10 0.326 0.250 0.250 -
10/03/2020 00:35 1.89 23:20 2.33 2.13 03:25 2.12 12:20 4.02 3.36 03:25 0.146 12:20 0.339 0.256 0.256 0.01
10/04/2020 01:45 1.85 10:50 2.32 2.14 03:40 2.11 08:40 4.18 3.36 03:40 0.147 10:50 0.347 0.259 0.259 0.01
10/05/2020 23:25 1.95 05:20 2.38 2.15 01:50 2.13 11:45 3.91 3.27 01:50 0.157 11:45 0.318 0.252 0.252 -
10/06/2020 05:25 1.91 05:05 2.51 2.16 01:25 2.10 17:05 3.96 3.23 00:30 0.157 17:10 0.328 0.250 0.250 -
10/07/2020 00:35 1.85 19:05 2.25 2.11 02:50 2.11 19:10 3.92 3.27 01:55 0.146 19:05 0.323 0.247 0.247 -
10/08/2020 01:15 1.87 23:00 2.26 2.11 02:35 2.20 12:05 3.97 3.37 03:25 0.153 12:05 0.322 0.256 0.256 -
10/09/2020 00:15 1.90 23:45 2.49 2.13 01:35 2.14 23:45 4.16 3.38 04:00 0.146 23:45 0.397 0.258 0.258 0.64
10/10/2020 04:45 1.89 00:00 2.39 2.16 05:45 2.40 10:50 4.07 3.59 04:45 0.165 10:55 0.355 0.280 0.280 1.04
10/11/2020 01:25 1.83 11:50 2.34 2.12 06:00 2.11 08:05 4.14 3.34 04:55 0.136 11:50 0.347 0.256 0.256 0.53
10/12/2020 05:30 1.89 11:55 2.36 2.12 04:25 2.12 18:55 4.04 3.32 04:25 0.155 11:55 0.353 0.253 0.253 -
10/13/2020 02:05 1.81 08:30 2.68 2.10 02:40 2.35 08:10 4.45 3.46 02:45 0.163 08:30 0.467 0.261 0.261 0.61
10/14/2020 04:40 1.83 19:25 2.33 2.06 04:05 2.15 19:30 4.01 3.28 03:30 0.142 19:25 0.347 0.240 0.240 -
10/15/2020 05:40 1.80 07:30 2.29 2.07 04:05 2.16 11:05 4.06 3.24 02:25 0.141 11:05 0.344 0.240 0.240 -
10/16/2020 03:00 1.86 07:05 2.19 2.04 01:00 2.17 17:50 3.96 3.26 03:00 0.137 17:50 0.300 0.235 0.235 -
10/17/2020 01:20 1.79 03:25 2.28 2.06 03:10 2.16 19:45 4.14 3.29 04:00 0.139 19:45 0.325 0.240 0.240 0.01
10/18/2020 00:45 1.81 12:20 2.33 2.06 06:00 2.10 12:35 4.08 3.28 01:25 0.136 12:35 0.352 0.240 0.240 0.03
10/19/2020 00:50 1.81 11:45 2.27 2.05 02:40 2.16 19:15 3.95 3.29 02:20 0.137 11:45 0.328 0.238 0.238 0.05
10/20/2020 02:40 1.82 18:20 2.31 2.06 02:35 2.10 18:20 4.03 3.30 02:30 0.136 18:20 0.345 0.242 0.242 -
10/21/2020 23:20 1.89 23:55 2.27 2.10 04:35 2.11 09:30 4.04 3.22 03:20 0.145 09:30 0.330 0.241 0.241 0.01
10/22/2020 06:35 1.94 06:05 2.45 2.13 04:30 2.10 16:35 3.88 3.22 04:20 0.154 16:35 0.312 0.246 0.246 -
10/23/2020 05:40 1.89 19:50 2.28 2.08 02:50 1.85 19:45 4.06 3.25 01:40 0.129 19:45 0.340 0.240 0.240 0.20
10/24/2020 04:30 1.84 10:30 2.26 2.08 04:25 1.77 15:55 3.96 3.25 04:25 0.110 10:30 0.325 0.242 0.242 0.02
10/25/2020 23:55 1.87 12:45 2.24 2.09 03:35 1.84 18:20 4.06 3.20 03:35 0.120 12:45 0.322 0.238 0.238 -
10/26/2020 05:35 1.86 17:05 2.23 2.07 00:50 1.83 10:20 3.98 3.18 00:50 0.125 17:05 0.320 0.234 0.234 -
10/27/2020 05:55 1.82 17:20 2.26 2.08 02:00 1.85 15:55 3.92 3.24 02:00 0.128 17:20 0.324 0.241 0.241 -
10/28/2020 23:55 1.86 01:10 2.27 2.05 02:15 1.85 16:35 3.89 3.24 03:20 0.122 16:40 0.303 0.234 0.234 -
10/29/2020 00:05 1.80 14:25 2.23 2.07 01:10 1.84 17:35 3.90 3.24 02:30 0.120 18:45 0.315 0.238 0.238 -
10/30/2020 23:25 1.87 06:50 2.28 2.07 01:40 1.82 10:05 3.95 3.27 02:40 0.123 10:05 0.321 0.240 0.240 0.10
10/31/2020 01:10 1.78 10:30 2.42 2.06 02:30 1.83 10:25 4.13 3.20 02:40 0.121 10:30 0.379 0.236 0.236 -
Page 578 of 1163
58
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 06:55 1.76 13:05 2.27 2.05 05:05 1.83 14:45 4.00 3.19 04:45 0.117 14:45 0.332 0.232 0.232 -
11/02/2020 01:10 1.79 23:40 2.21 2.04 02:30 1.83 13:35 3.93 3.22 04:20 0.113 13:35 0.307 0.232 0.232 -
11/03/2020 01:40 1.84 10:35 2.31 2.07 02:25 1.80 10:25 4.03 3.33 03:55 0.118 10:30 0.344 0.246 0.246 0.83
11/04/2020 06:05 1.83 07:50 2.22 2.04 01:55 1.77 12:15 3.92 3.19 02:00 0.121 21:00 0.303 0.229 0.229 0.09
11/05/2020 01:15 1.84 09:25 2.31 2.09 04:05 1.84 16:25 3.94 3.29 03:50 0.123 16:25 0.336 0.244 0.244 0.34
11/06/2020 02:05 1.86 09:00 2.30 2.07 04:20 2.15 20:00 4.03 3.28 04:20 0.152 12:45 0.314 0.241 0.241 0.10
11/07/2020 06:55 1.83 15:20 2.29 2.07 04:30 1.96 15:20 3.98 3.25 04:35 0.132 15:20 0.336 0.238 0.238 0.07
11/08/2020 01:30 1.84 12:25 2.39 2.11 04:45 2.02 12:20 4.04 3.31 04:45 0.137 12:25 0.362 0.251 0.251 0.01
11/09/2020 00:50 1.84 23:30 2.30 2.04 02:35 1.99 20:45 3.98 3.25 04:15 0.132 20:50 0.328 0.234 0.234 0.04
11/10/2020 01:20 1.84 17:10 2.34 2.07 02:30 1.99 17:05 4.07 3.24 02:30 0.133 17:05 0.350 0.239 0.239 0.03
11/11/2020 06:25 1.81 23:50 2.32 2.05 04:15 2.10 14:05 3.99 3.23 04:15 0.135 14:10 0.320 0.234 0.234 -
11/12/2020 01:05 1.84 00:00 2.33 2.07 03:35 2.10 08:50 3.98 3.27 04:35 0.141 10:40 0.318 0.240 0.240 0.16
11/13/2020 01:45 1.87 00:30 2.28 2.08 03:05 2.23 13:50 4.13 3.34 03:05 0.155 18:55 0.333 0.246 0.246 0.38
11/14/2020 01:25 1.90 08:05 2.53 2.11 04:20 1.94 11:30 4.01 3.18 04:25 0.129 16:15 0.345 0.241 0.241 0.47
11/15/2020 04:00 1.75 15:05 2.34 2.06 03:15 2.11 11:10 4.07 3.35 05:00 0.134 15:05 0.354 0.245 0.245 0.19
11/16/2020 05:05 1.82 14:35 2.31 2.04 03:40 2.09 11:25 3.95 3.28 04:00 0.137 14:25 0.329 0.237 0.237 0.31
11/17/2020 00:45 1.88 18:55 2.29 2.05 03:35 2.04 19:00 4.01 3.28 03:35 0.135 18:55 0.337 0.237 0.237 0.20
11/18/2020 03:20 1.83 15:45 2.27 2.04 04:05 1.96 17:45 3.98 3.22 04:00 0.128 15:45 0.330 0.232 0.232 0.30
11/19/2020 00:35 1.84 19:20 2.20 2.05 03:45 2.10 13:10 3.93 3.27 03:45 0.133 19:25 0.311 0.237 0.237 0.50
11/20/2020 00:50 1.81 01:50 2.29 2.01 02:40 2.07 21:45 4.07 3.23 02:40 0.136 21:45 0.340 0.228 0.228 0.01
11/21/2020 01:55 1.76 23:15 2.31 2.04 04:00 1.98 12:35 3.97 3.23 05:25 0.130 12:35 0.329 0.233 0.233 -
11/22/2020 05:30 1.78 13:00 2.29 2.04 03:50 1.97 12:50 3.99 3.23 05:30 0.120 12:45 0.335 0.234 0.234 0.21
11/23/2020 03:15 1.80 08:45 2.18 2.03 02:20 1.86 19:40 3.88 3.19 03:25 0.112 19:45 0.299 0.229 0.229 0.14
11/24/2020 02:30 1.74 00:10 2.19 2.03 03:30 1.86 16:45 3.90 3.17 03:30 0.121 17:50 0.304 0.226 0.226 0.21
11/25/2020 01:40 1.81 21:25 2.43 2.04 02:45 1.86 21:25 4.22 3.24 02:45 0.126 21:25 0.389 0.233 0.233 0.05
11/26/2020 07:15 1.76 13:30 2.39 2.07 05:30 1.95 13:30 4.20 3.35 05:20 0.131 13:30 0.378 0.247 0.247 0.02
11/27/2020 01:20 1.79 00:35 2.19 1.99 05:30 1.86 11:25 3.88 3.18 03:25 0.112 11:35 0.284 0.221 0.221 -
11/28/2020 01:40 1.82 08:40 2.35 2.06 04:50 1.86 19:00 4.03 3.16 04:50 0.126 19:05 0.333 0.230 0.230 0.05
11/29/2020 08:05 1.82 12:40 2.35 2.05 04:55 1.88 12:40 4.13 3.22 04:55 0.122 12:40 0.363 0.235 0.235 -
11/30/2020 02:00 1.80 23:50 2.24 2.03 02:45 1.93 11:35 4.03 3.33 02:50 0.125 11:40 0.321 0.237 0.237 0.36
12/01/2020 01:55 1.78 23:10 2.31 2.03 04:40 1.86 18:40 3.96 3.21 03:20 0.127 18:40 0.301 0.229 0.229 -
12/02/2020 06:05 1.78 08:30 2.33 2.04 01:05 1.86 18:30 3.94 3.19 03:30 0.116 18:30 0.324 0.230 0.230 0.01
12/03/2020 02:25 1.77 17:35 2.35 2.02 03:05 1.81 19:25 3.87 3.17 03:35 0.119 17:35 0.317 0.225 0.225 -
12/04/2020 00:55 1.84 23:20 2.24 2.02 04:05 1.55 20:55 3.92 3.17 04:00 0.099 20:55 0.312 0.226 0.226 -
12/05/2020 01:20 1.83 21:00 2.83 2.16 04:05 1.93 11:45 3.99 3.11 04:05 0.123 19:15 0.383 0.245 0.245 0.03
12/06/2020 01:50 1.86 17:00 2.33 2.07 06:45 2.12 12:55 3.98 3.28 06:35 0.140 17:00 0.344 0.242 0.242 0.03
12/07/2020 01:20 1.88 00:15 2.32 2.04 04:50 1.86 17:45 3.91 3.25 04:50 0.120 17:45 0.321 0.234 0.234 -
12/08/2020 03:35 1.78 17:25 2.29 2.06 04:25 1.79 19:30 4.01 3.31 03:55 0.108 19:35 0.334 0.244 0.244 0.87
12/09/2020 03:10 1.79 07:55 2.23 2.04 02:20 2.40 22:20 3.95 3.32 03:00 0.155 22:20 0.311 0.238 0.238 0.17
12/10/2020 06:35 1.82 23:35 2.23 2.04 03:20 1.64 17:15 3.88 3.15 03:20 0.111 18:25 0.298 0.226 0.226 0.07
12/11/2020 06:20 1.84 08:40 2.22 2.02 02:50 1.86 12:00 3.90 3.14 02:30 0.122 12:10 0.315 0.223 0.223 0.02
12/12/2020 08:50 1.82 23:30 2.30 2.05 02:10 1.87 08:50 3.90 3.08 04:10 0.122 12:40 0.324 0.225 0.225 0.01
12/13/2020 00:50 1.84 08:25 2.26 2.05 05:45 1.69 09:10 3.98 3.08 05:45 0.105 15:30 0.320 0.224 0.224 0.24
12/14/2020 06:15 1.77 18:20 2.20 2.02 03:45 1.85 10:45 3.92 3.18 03:45 0.115 17:05 0.308 0.226 0.226 0.05
12/15/2020 01:00 1.83 16:30 2.22 2.04 02:30 1.82 16:30 3.91 3.21 03:20 0.113 16:30 0.315 0.232 0.232 0.58
12/16/2020 01:35 1.85 18:50 2.68 2.24 04:20 1.99 07:40 3.59 2.87 04:20 0.135 18:50 0.357 0.238 0.238 0.39
12/17/2020 01:55 1.48 12:25 2.41 1.93 03:15 0.77 12:15 3.92 2.55 03:15 0.037 12:20 0.343 0.180 0.180 0.08
12/18/2020 01:05 1.84 11:30 2.31 2.11 03:40 1.34 14:10 4.06 3.11 03:40 0.104 12:50 0.301 0.233 0.233 0.25
12/19/2020 02:00 1.87 22:05 2.28 2.06 04:45 1.66 12:10 3.96 3.27 04:45 0.109 22:05 0.332 0.238 0.238 0.37
12/20/2020 02:25 1.78 12:55 2.24 2.03 06:25 1.90 12:55 3.98 3.24 06:25 0.122 12:55 0.326 0.233 0.233 0.04
12/21/2020 01:10 1.76 19:15 2.99 2.21 04:15 2.18 19:10 4.51 3.51 03:35 0.145 19:05 0.556 0.289 0.289 1.07
12/22/2020 05:55 1.89 09:45 2.25 2.08 04:10 1.88 19:05 3.91 3.25 04:10 0.135 14:50 0.309 0.239 0.239 -
12/23/2020 01:55 1.81 13:30 2.26 2.05 04:10 2.28 13:20 4.00 3.29 04:25 0.144 13:30 0.329 0.238 0.238 -
12/24/2020 05:50 1.74 00:35 2.32 2.07 04:55 2.01 14:20 4.07 3.34 04:55 0.132 14:25 0.347 0.246 0.246 -
12/25/2020 03:05 1.78 00:35 2.24 2.00 04:50 1.87 16:10 4.05 3.28 04:50 0.119 16:10 0.329 0.231 0.231 0.49
12/26/2020 03:05 1.79 11:45 2.29 2.04 06:05 2.18 11:40 4.09 3.37 06:05 0.143 11:40 0.345 0.242 0.242 0.02
12/27/2020 05:25 1.75 15:05 2.39 2.04 06:55 2.18 15:00 4.17 3.32 04:55 0.135 15:00 0.371 0.241 0.241 0.13
12/28/2020 05:25 1.76 13:45 2.36 2.05 03:45 2.18 13:45 4.24 3.39 03:45 0.136 13:45 0.374 0.246 0.246 -
12/29/2020 07:25 1.84 02:15 2.22 2.06 03:15 2.15 20:00 4.15 3.26 03:50 0.146 20:00 0.329 0.238 0.238 0.14
12/30/2020 05:00 1.78 17:20 2.28 2.10 03:35 2.32 17:20 4.03 3.43 03:10 0.153 17:20 0.338 0.257 0.257 0.78
12/31/2020 02:35 1.83 22:45 2.36 2.08 04:10 2.12 17:35 3.94 3.28 06:45 0.144 17:40 0.325 0.244 0.244 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 49.698 30.65
Average 2.07 3.29 0.243
Page 579 of 1163
59
Page 580 of 1163
60
AUB_A17_80957
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced a flow change on October 25th and backwater conditions April 13th through April 14th. An ADS field crew
performed a confirmation on January 27th which verified the sensors are working properly.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 3.07 0.48 0.041
Minimum 1.92 0.15 0.010
Maximum 5.56 1.61 0.218
Min Time 12/10/2020 3:00:00 AM 04/14/2021 4:00:00 AM 04/06/2021 3:00:00 AM
Max Time 04/14/2021 11:00:00 AM 10/09/2020 11:00:00 PM 10/09/2020 11:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 96.773
VFINAL (ft/s) 96.773
QFINAL (MGD - Total MG) 96.773
Pipe Elliptical (9.5 in H x 9.25 in W)
Silt 1.00 (in)
Page 581 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A17_80957
Page 582 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A17_80957
Page 583 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A17_80957Pipe: Elliptical (9.5 in H x 9.25 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 05:35 2.33 15:15 4.91 3.00 21:20 0.25 15:15 0.71 0.45 05:35 0.020 15:15 0.114 0.039 0.039 0.51
01/02/2021 04:10 2.11 20:55 6.19 3.34 06:30 0.26 20:55 0.83 0.49 06:30 0.014 20:55 0.178 0.052 0.052 1.69
01/03/2021 06:15 2.07 00:00 4.95 3.00 06:10 0.30 00:00 0.71 0.45 04:40 0.015 00:00 0.116 0.039 0.039 0.65
01/04/2021 05:40 2.27 11:25 4.20 2.93 03:05 0.34 11:25 0.62 0.44 05:40 0.019 11:25 0.082 0.036 0.036 0.48
01/05/2021 04:15 2.13 20:35 3.87 2.92 04:15 0.32 20:35 0.57 0.44 04:15 0.016 20:35 0.068 0.036 0.036 0.52
01/06/2021 05:50 2.21 00:10 3.51 2.84 05:40 0.33 09:20 0.87 0.57 05:40 0.018 09:20 0.092 0.053 0.053 0.22
01/07/2021 03:05 2.07 09:00 3.56 2.80 12:10 0.30 08:55 0.78 0.46 03:50 0.016 08:55 0.113 0.038 0.038 -
01/08/2021 04:35 1.94 08:50 3.57 2.82 04:35 0.28 08:50 0.53 0.42 04:35 0.013 08:50 0.057 0.033 0.033 0.22
01/09/2021 06:25 2.09 12:45 3.43 2.74 08:10 0.20 22:55 0.60 0.42 03:25 0.015 10:50 0.067 0.037 0.037 -
01/10/2021 06:20 1.99 16:45 3.47 2.74 08:35 0.24 11:10 0.64 0.41 06:15 0.014 11:10 0.070 0.032 0.032 0.07
01/11/2021 05:25 2.04 10:10 4.28 2.96 01:45 0.30 18:35 0.64 0.45 01:45 0.015 20:10 0.088 0.043 0.043 1.06
01/12/2021 15:55 2.45 18:35 5.92 3.53 11:05 0.37 18:40 0.78 0.50 15:55 0.023 18:40 0.147 0.055 0.055 2.10
01/13/2021 04:55 1.99 00:00 7.83 2.71 03:25 0.29 10:40 1.04 0.55 03:20 0.014 00:00 0.173 0.050 0.050 0.09
01/14/2021 04:20 2.03 10:10 4.03 2.66 03:20 0.21 10:10 0.58 0.40 03:20 0.014 10:05 0.072 0.031 0.031 0.01
01/15/2021 06:15 2.09 17:50 3.35 2.73 05:35 0.26 17:50 0.50 0.41 03:50 0.016 17:50 0.049 0.031 0.031 0.09
01/16/2021 03:15 2.10 18:05 3.39 2.67 06:05 0.20 18:05 0.51 0.40 06:05 0.015 18:05 0.050 0.029 0.029 -
01/17/2021 04:15 2.07 20:15 5.62 3.02 04:10 0.30 11:30 0.68 0.45 04:10 0.015 20:15 0.106 0.040 0.040 0.10
01/18/2021 05:35 2.37 20:00 4.23 3.27 05:30 0.25 20:00 0.67 0.46 05:30 0.015 20:00 0.089 0.045 0.045 -
01/19/2021 02:20 2.71 19:15 4.10 3.44 02:20 0.33 19:15 0.64 0.50 02:20 0.024 19:15 0.082 0.051 0.051 0.01
01/20/2021 04:10 2.67 15:10 4.05 3.39 02:55 0.33 15:10 0.63 0.49 04:10 0.023 15:10 0.079 0.050 0.050 -
01/21/2021 03:00 2.58 21:30 4.38 3.42 03:00 0.30 21:30 0.68 0.50 03:00 0.020 21:30 0.094 0.051 0.051 0.11
01/22/2021 02:50 2.76 10:55 4.24 3.38 02:45 0.35 10:55 0.67 0.49 02:45 0.026 10:50 0.089 0.049 0.049 -
01/23/2021 06:55 2.60 15:45 4.23 3.43 04:25 0.31 15:45 0.66 0.50 04:25 0.021 15:45 0.089 0.052 0.052 -
01/24/2021 04:40 2.58 17:15 4.44 3.47 04:40 0.30 17:15 0.71 0.51 04:40 0.021 17:15 0.101 0.054 0.054 0.16
01/25/2021 02:25 2.60 16:35 4.34 3.38 02:25 0.31 16:35 0.69 0.49 02:25 0.021 16:35 0.095 0.049 0.049 0.04
01/26/2021 04:20 2.48 21:15 3.98 3.36 04:20 0.28 21:15 0.62 0.48 04:20 0.018 21:15 0.076 0.049 0.049 -
01/27/2021 05:15 2.60 08:15 4.06 3.30 05:10 0.31 22:55 0.65 0.49 05:15 0.021 08:15 0.080 0.044 0.044 0.14
01/28/2021 03:35 2.61 17:25 4.36 3.41 03:35 0.34 04:50 0.66 0.49 03:35 0.017 17:25 0.080 0.042 0.042 0.24
01/29/2021 03:45 2.69 19:10 4.38 3.41 03:50 0.30 19:10 0.70 0.48 03:40 0.017 19:10 0.085 0.041 0.041 0.03
01/30/2021 05:20 2.65 14:55 4.18 3.41 04:55 0.30 14:35 0.71 0.49 04:55 0.016 14:55 0.076 0.042 0.042 0.07
01/31/2021 05:25 2.50 14:35 4.28 3.36 04:55 0.30 11:40 0.65 0.47 05:25 0.014 14:35 0.074 0.039 0.039 0.12
02/01/2021 00:55 2.92 18:15 4.77 3.63 00:45 0.39 18:15 0.74 0.56 00:50 0.025 18:15 0.102 0.053 0.053 0.82
02/02/2021 02:45 2.55 08:05 4.82 3.38 04:35 0.15 07:55 0.73 0.46 04:35 0.008 08:05 0.103 0.039 0.039 0.31
02/03/2021 03:20 2.48 22:50 3.97 3.24 03:15 0.23 19:15 0.61 0.44 03:15 0.011 22:50 0.063 0.034 0.034 0.06
02/04/2021 04:00 2.39 22:10 4.45 3.28 03:55 0.21 22:05 0.65 0.43 03:55 0.009 22:05 0.081 0.035 0.035 0.07
02/05/2021 03:40 2.51 19:25 4.24 3.36 03:35 0.23 19:20 0.65 0.42 03:35 0.011 19:25 0.075 0.036 0.036 0.01
02/06/2021 03:05 2.54 11:50 4.26 3.45 04:15 0.23 19:10 0.67 0.45 04:15 0.013 20:25 0.076 0.040 0.040 0.01
02/07/2021 04:10 2.58 14:25 4.26 3.31 05:05 0.20 14:25 0.62 0.43 04:05 0.013 14:25 0.073 0.035 0.035 -
02/08/2021 04:55 2.60 20:05 4.06 3.34 03:20 0.29 10:10 0.58 0.45 04:50 0.015 20:05 0.064 0.036 0.036 -
02/09/2021 05:05 2.50 22:15 4.39 3.33 03:40 0.20 22:10 0.62 0.43 03:40 0.010 22:15 0.076 0.035 0.035 -
02/10/2021 03:05 2.51 09:50 4.22 3.38 03:35 0.20 09:50 0.62 0.43 03:35 0.012 09:50 0.072 0.036 0.036 -
02/11/2021 04:30 2.30 11:05 4.06 3.27 04:25 0.23 11:05 0.63 0.45 04:30 0.009 11:05 0.069 0.036 0.036 -
02/12/2021 04:20 2.28 10:10 4.00 3.19 03:20 0.24 12:15 0.64 0.45 04:15 0.010 12:15 0.064 0.035 0.035 -
02/13/2021 04:05 2.41 13:45 4.16 3.28 03:55 0.26 13:45 0.66 0.45 03:55 0.012 13:45 0.074 0.037 0.037 0.08
02/14/2021 04:50 2.36 21:50 3.96 3.28 05:00 0.22 14:40 0.61 0.45 04:20 0.011 17:30 0.061 0.037 0.037 0.71
02/15/2021 05:55 3.04 13:25 5.07 3.92 05:50 0.45 12:50 0.75 0.61 05:50 0.031 13:25 0.113 0.065 0.065 0.78
02/16/2021 05:20 2.52 20:00 4.04 3.24 06:15 0.27 19:30 0.64 0.46 06:10 0.014 19:30 0.067 0.036 0.036 0.07
02/17/2021 03:40 2.27 21:15 4.30 3.24 03:00 0.19 19:10 0.61 0.42 03:35 0.010 21:15 0.071 0.033 0.033 -
02/18/2021 03:10 2.49 10:15 4.04 3.34 05:00 0.24 14:40 0.63 0.45 01:40 0.013 14:40 0.067 0.038 0.038 0.09
02/19/2021 04:30 2.45 19:00 4.62 3.32 03:30 0.21 19:00 0.72 0.44 04:30 0.011 19:00 0.095 0.037 0.037 0.17
02/20/2021 04:15 2.43 16:20 4.16 3.32 05:35 0.22 12:40 0.64 0.45 04:10 0.012 16:20 0.070 0.037 0.037 0.07
02/21/2021 05:25 2.38 22:50 5.83 3.51 06:50 0.24 23:25 0.81 0.47 04:50 0.012 23:35 0.146 0.044 0.044 0.42
02/22/2021 04:15 2.84 12:50 6.66 3.76 05:05 0.34 12:50 0.87 0.55 04:15 0.022 12:50 0.186 0.057 0.057 0.98
02/23/2021 04:10 2.38 21:05 5.43 3.20 04:55 0.24 21:10 0.85 0.47 04:05 0.011 21:10 0.141 0.037 0.037 0.27
02/24/2021 04:15 2.52 20:20 4.27 3.18 03:05 0.30 20:20 0.62 0.45 04:05 0.016 20:20 0.073 0.033 0.033 -
02/25/2021 02:50 2.50 20:45 4.03 3.31 01:55 0.29 04:25 0.62 0.47 01:35 0.014 20:45 0.067 0.038 0.038 0.18
02/26/2021 03:50 2.36 22:30 4.47 3.27 04:15 0.20 22:35 0.62 0.42 04:15 0.011 22:30 0.077 0.034 0.034 0.10
02/27/2021 04:25 2.38 13:00 4.19 3.34 01:25 0.24 15:55 0.59 0.44 04:25 0.011 12:55 0.063 0.037 0.037 0.02
02/28/2021 06:30 2.32 17:55 4.50 3.35 06:25 0.27 11:45 0.58 0.42 06:25 0.011 11:45 0.067 0.035 0.035 0.02
03/01/2021 02:25 2.42 19:00 4.37 3.41 01:30 0.27 22:50 0.63 0.45 01:30 0.013 19:00 0.073 0.038 0.038 -
03/02/2021 04:30 2.37 02:25 4.50 3.39 02:15 0.17 11:10 0.58 0.46 03:20 0.012 19:40 0.068 0.039 0.039 -
03/03/2021 03:05 2.48 18:30 4.13 3.37 05:10 0.18 11:40 0.61 0.51 05:05 0.014 18:30 0.067 0.042 0.042 -
03/04/2021 02:20 2.44 19:20 4.88 3.53 02:15 0.34 19:25 0.73 0.52 02:15 0.016 19:25 0.104 0.047 0.047 0.20
03/05/2021 04:30 2.38 09:40 4.59 3.48 02:30 0.33 10:55 0.64 0.50 02:30 0.018 11:10 0.080 0.043 0.043 0.05
03/06/2021 05:00 2.28 21:45 4.71 3.47 22:30 0.31 13:45 0.59 0.45 04:45 0.013 21:45 0.074 0.040 0.040 -
03/07/2021 05:00 2.52 10:05 4.74 3.40 04:45 0.28 18:20 0.65 0.46 04:50 0.014 18:25 0.082 0.040 0.040 0.04
03/08/2021 03:55 2.54 19:25 4.45 3.41 03:30 0.28 19:25 0.68 0.47 03:50 0.015 19:25 0.085 0.040 0.040 -
03/09/2021 04:05 2.50 12:20 4.65 3.44 03:25 0.25 11:55 0.70 0.45 03:20 0.013 11:15 0.073 0.039 0.039 0.01
03/10/2021 04:00 2.46 18:15 4.30 3.49 03:55 0.23 19:35 0.57 0.42 03:55 0.011 13:55 0.063 0.037 0.037 -
03/11/2021 04:20 2.35 11:45 4.47 3.42 04:20 0.24 15:55 0.60 0.43 04:20 0.010 11:45 0.070 0.038 0.038 -
Page 584 of 1163
64
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 02:55 2.40 20:45 4.54 3.53 02:50 0.26 20:45 0.61 0.46 02:55 0.011 20:45 0.078 0.041 0.041 -
03/13/2021 05:05 2.63 11:20 4.68 3.53 06:55 0.25 10:05 0.68 0.44 04:20 0.016 11:20 0.088 0.039 0.039 -
03/14/2021 04:20 2.52 19:20 5.45 3.60 04:05 0.24 19:20 0.71 0.46 04:05 0.013 19:20 0.119 0.044 0.044 0.30
03/15/2021 02:50 2.58 19:40 5.49 3.48 05:15 0.26 09:10 0.71 0.45 02:45 0.014 09:10 0.119 0.040 0.040 -
03/16/2021 03:35 2.47 20:25 4.17 3.39 04:30 0.23 18:20 0.63 0.46 02:35 0.012 18:20 0.066 0.039 0.039 -
03/17/2021 03:30 2.21 08:00 4.90 3.23 02:50 0.20 08:00 0.75 0.45 02:50 0.008 08:00 0.108 0.036 0.036 -
03/18/2021 03:15 2.39 15:50 5.95 3.43 04:30 0.25 06:35 0.79 0.49 03:20 0.011 15:50 0.143 0.043 0.043 0.11
03/19/2021 02:40 2.42 17:40 4.45 3.38 02:45 0.20 17:40 0.63 0.46 02:45 0.009 17:40 0.078 0.039 0.039 0.03
03/20/2021 03:05 2.58 05:25 4.79 3.47 03:15 0.26 05:25 0.73 0.48 03:15 0.016 05:25 0.102 0.042 0.042 0.17
03/21/2021 05:20 2.61 04:30 4.49 3.40 04:30 0.16 23:05 0.66 0.47 03:20 0.012 21:30 0.081 0.040 0.040 0.07
03/22/2021 02:45 2.12 10:00 5.61 3.38 02:45 0.29 10:00 0.77 0.50 02:45 0.010 10:00 0.134 0.043 0.043 0.11
03/23/2021 03:20 2.31 08:15 5.37 3.33 02:25 0.30 08:05 0.78 0.47 02:25 0.013 08:15 0.094 0.039 0.039 -
03/24/2021 02:20 2.47 19:20 5.79 3.46 03:40 0.25 19:20 0.77 0.51 02:05 0.014 19:20 0.139 0.046 0.046 0.34
03/25/2021 04:25 2.84 21:25 4.40 3.50 23:50 0.31 12:25 0.68 0.54 23:30 0.020 19:55 0.073 0.047 0.047 0.27
03/26/2021 03:25 2.45 20:00 4.19 3.38 02:30 0.31 10:25 0.67 0.50 02:55 0.015 20:00 0.077 0.042 0.042 -
03/27/2021 03:45 2.42 16:40 4.21 3.35 03:55 0.23 11:50 0.66 0.50 03:55 0.010 11:50 0.075 0.041 0.041 -
03/28/2021 03:05 2.41 14:20 7.36 3.52 04:30 0.28 14:20 0.94 0.53 03:05 0.016 14:20 0.226 0.049 0.049 0.37
03/29/2021 03:00 2.37 17:40 4.46 3.28 01:00 0.26 12:45 0.76 0.51 01:00 0.012 17:40 0.084 0.041 0.041 -
03/30/2021 01:35 2.53 17:30 4.29 3.33 01:50 0.27 10:10 0.75 0.49 01:50 0.014 10:10 0.072 0.040 0.040 -
03/31/2021 03:00 2.48 18:00 4.15 3.32 04:55 0.31 17:55 0.66 0.49 01:50 0.017 18:00 0.073 0.040 0.040 -
04/01/2021 03:30 2.31 07:25 4.15 3.27 01:50 0.24 07:25 0.65 0.48 01:50 0.011 07:25 0.073 0.038 0.038 -
04/02/2021 02:25 2.40 19:15 4.64 3.28 00:50 0.30 19:15 0.66 0.48 02:20 0.013 19:15 0.088 0.039 0.039 -
04/03/2021 01:10 2.35 12:25 4.34 3.33 03:10 0.24 14:00 0.67 0.49 03:10 0.012 12:25 0.079 0.041 0.041 -
04/04/2021 03:45 2.36 12:30 4.48 3.26 02:35 0.26 12:30 0.64 0.46 03:40 0.012 12:30 0.080 0.036 0.036 -
04/05/2021 03:05 2.50 16:40 4.34 3.44 03:00 0.31 12:30 0.66 0.49 03:00 0.015 10:30 0.073 0.043 0.043 -
04/06/2021 02:50 2.13 09:10 4.44 3.29 02:45 0.23 12:30 0.60 0.45 02:45 0.008 10:20 0.070 0.037 0.037 -
04/07/2021 04:05 2.34 23:25 5.48 3.46 04:05 0.27 23:30 0.73 0.48 04:05 0.011 23:25 0.121 0.043 0.043 0.22
04/08/2021 03:00 2.50 17:10 4.28 3.35 02:10 0.23 13:20 0.59 0.46 02:10 0.011 10:35 0.062 0.038 0.038 -
04/09/2021 03:10 2.50 10:15 4.51 3.37 03:00 0.25 10:15 0.66 0.46 03:00 0.012 10:15 0.084 0.039 0.039 0.03
04/10/2021 02:30 2.60 15:10 4.69 3.41 02:40 0.29 11:30 0.70 0.48 02:40 0.015 18:35 0.077 0.041 0.041 0.02
04/11/2021 05:00 2.40 10:50 4.45 3.31 23:35 0.27 10:50 0.70 0.48 03:15 0.016 10:50 0.088 0.040 0.040 -
04/12/2021 02:50 2.44 17:35 4.29 3.33 04:25 0.27 09:40 0.68 0.48 01:50 0.014 09:40 0.080 0.039 0.039 -
04/13/2021 03:00 2.41 20:50 5.25 3.63 23:55 0.16 11:45 0.71 0.41 02:55 0.015 11:50 0.076 0.036 0.036 -
04/14/2021 23:25 3.26 10:50 5.81 4.45 04:45 0.14 18:25 0.44 0.25 23:55 0.015 18:25 0.060 0.030 0.030 -
09/28/2020 23:45 2.33 20:40 3.32 2.91 23:50 0.46 20:40 1.00 0.76 23:50 0.025 19:40 0.087 0.058 0.022 -
09/29/2020 01:55 2.06 20:25 3.41 2.71 02:50 0.33 19:25 1.02 0.67 02:10 0.015 19:25 0.092 0.045 0.045 -
09/30/2020 03:00 2.19 08:25 3.56 2.74 03:15 0.35 08:25 1.11 0.68 03:15 0.017 08:25 0.091 0.046 0.046 -
10/01/2020 01:50 2.07 10:05 3.38 2.72 01:50 0.28 11:50 0.97 0.66 01:50 0.013 21:10 0.083 0.045 0.045 -
10/02/2020 02:45 1.96 15:10 3.58 2.78 02:10 0.26 15:10 1.17 0.69 02:10 0.012 18:20 0.104 0.051 0.051 -
10/03/2020 04:00 2.06 16:05 3.39 2.73 03:15 0.28 10:50 1.04 0.64 03:15 0.013 10:50 0.100 0.047 0.047 0.01
10/04/2020 05:20 2.09 11:25 3.42 2.71 06:50 0.30 11:25 1.03 0.62 06:50 0.015 16:15 0.099 0.045 0.045 0.01
10/05/2020 03:05 2.02 11:30 3.38 2.75 00:55 0.26 11:30 1.11 0.64 01:05 0.013 11:30 0.109 0.048 0.048 -
10/06/2020 03:00 1.93 20:20 3.36 2.73 02:55 0.24 19:10 1.01 0.65 02:50 0.011 19:10 0.099 0.047 0.047 -
10/07/2020 02:10 2.21 12:30 3.45 2.79 02:10 0.29 12:30 1.03 0.66 02:10 0.015 12:30 0.090 0.048 0.048 -
10/08/2020 03:05 2.26 13:05 3.36 2.83 02:10 0.34 20:05 1.00 0.68 02:10 0.018 20:05 0.087 0.051 0.051 -
10/09/2020 02:25 2.27 23:45 5.09 2.92 01:25 0.32 23:45 1.89 0.74 03:00 0.017 23:45 0.319 0.063 0.063 0.64
10/10/2020 04:50 2.48 01:10 4.94 3.09 16:05 0.50 01:10 1.88 0.83 23:30 0.031 01:10 0.306 0.071 0.071 1.04
10/11/2020 04:35 2.26 22:40 3.85 2.90 04:20 0.33 22:40 1.46 0.75 03:15 0.018 22:40 0.172 0.060 0.060 0.53
10/12/2020 04:15 2.26 11:00 3.35 2.76 01:40 0.33 11:00 1.06 0.66 01:40 0.020 11:00 0.103 0.047 0.047 -
10/13/2020 00:45 2.29 07:05 4.90 2.88 00:25 0.37 07:05 1.84 0.75 00:30 0.020 07:05 0.296 0.059 0.059 0.61
10/14/2020 00:30 2.08 17:50 3.18 2.69 03:10 0.26 17:50 0.97 0.64 03:10 0.012 14:45 0.082 0.045 0.045 -
10/15/2020 03:00 2.14 12:00 3.36 2.78 03:20 0.32 12:00 1.03 0.62 02:55 0.016 12:00 0.101 0.047 0.047 -
10/16/2020 02:35 2.21 18:15 3.30 2.82 02:35 0.36 18:15 0.98 0.70 02:35 0.020 18:15 0.094 0.055 0.055 -
10/17/2020 02:00 2.20 11:05 3.42 2.83 02:00 0.36 11:05 1.05 0.71 02:00 0.019 11:05 0.106 0.057 0.057 0.01
10/18/2020 03:00 2.17 10:50 3.32 2.81 04:50 0.30 10:50 0.99 0.70 04:50 0.017 10:50 0.095 0.056 0.056 0.03
10/19/2020 02:55 2.09 20:10 3.28 2.78 02:55 0.29 20:10 0.96 0.68 02:55 0.015 20:10 0.091 0.052 0.052 0.05
10/20/2020 04:15 2.17 13:25 3.25 2.79 04:15 0.29 13:25 0.95 0.69 04:15 0.017 13:25 0.089 0.054 0.054 -
10/21/2020 02:15 2.19 10:35 3.28 2.78 02:15 0.35 10:35 0.96 0.68 02:15 0.019 10:35 0.091 0.053 0.053 0.01
10/22/2020 03:25 2.16 10:35 3.38 2.78 03:25 0.34 10:35 1.03 0.68 03:25 0.018 10:35 0.102 0.052 0.052 -
10/23/2020 02:20 2.15 23:00 4.04 2.73 04:45 0.33 23:00 1.56 0.66 04:45 0.018 23:00 0.204 0.051 0.051 0.20
10/24/2020 04:05 2.03 14:50 3.40 2.70 04:05 0.26 14:50 1.04 0.63 04:05 0.012 14:50 0.103 0.048 0.048 0.02
10/25/2020 01:20 2.12 10:30 3.73 3.01 23:55 0.27 07:20 0.75 0.47 01:20 0.016 11:40 0.070 0.041 0.041 -
10/26/2020 01:55 2.51 18:40 3.75 3.14 05:15 0.19 10:30 0.66 0.40 00:55 0.014 10:30 0.075 0.039 0.039 -
10/27/2020 02:50 2.34 17:55 3.73 3.09 03:55 0.14 19:20 0.61 0.40 02:35 0.011 18:00 0.072 0.038 0.038 -
10/28/2020 02:15 2.22 18:55 3.73 3.04 04:10 0.16 18:55 0.62 0.39 02:35 0.011 18:55 0.074 0.037 0.037 -
10/29/2020 03:10 2.32 15:20 3.67 3.06 02:15 0.19 15:20 0.60 0.41 02:15 0.013 15:20 0.066 0.038 0.038 -
10/30/2020 02:30 2.47 05:20 5.06 3.04 00:45 0.22 05:15 0.91 0.42 03:15 0.015 05:15 0.142 0.037 0.037 0.10
10/31/2020 03:25 2.36 13:30 3.62 2.99 04:15 0.17 12:20 0.56 0.39 04:15 0.011 12:20 0.060 0.034 0.034 -
11/01/2020 03:00 2.31 14:30 4.21 2.98 03:05 0.18 01:50 0.62 0.40 03:05 0.011 14:30 0.075 0.034 0.034 -
11/02/2020 04:20 2.39 17:20 3.78 3.06 02:00 0.22 10:15 0.58 0.41 03:50 0.015 17:20 0.060 0.036 0.036 -
11/03/2020 02:45 2.33 09:45 5.85 3.24 04:25 0.17 09:45 0.94 0.45 04:25 0.010 09:45 0.187 0.045 0.045 0.83
11/04/2020 02:45 2.37 10:40 3.51 2.95 01:40 0.18 19:25 0.69 0.42 01:40 0.013 19:25 0.070 0.035 0.035 0.09
11/05/2020 03:55 2.17 12:20 3.72 2.95 04:40 0.23 01:35 0.78 0.44 03:55 0.015 01:35 0.079 0.038 0.038 0.34
11/06/2020 04:25 2.31 18:30 3.49 2.92 00:05 0.23 02:00 0.61 0.45 00:05 0.015 19:20 0.060 0.037 0.037 0.10
Page 585 of 1163
65
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/07/2020 03:30 1.96 09:15 3.54 2.77 03:30 0.22 09:15 0.64 0.40 03:30 0.010 09:15 0.067 0.031 0.031 0.07
11/08/2020 05:55 1.97 12:15 3.54 2.77 04:10 0.23 18:10 0.57 0.40 04:05 0.011 18:10 0.060 0.031 0.031 0.01
11/09/2020 03:10 2.02 12:10 3.50 2.81 04:20 0.21 11:40 0.52 0.39 03:10 0.011 11:40 0.053 0.031 0.031 0.04
11/10/2020 03:25 1.99 19:30 3.36 2.79 03:25 0.23 11:10 0.58 0.40 03:15 0.011 11:10 0.053 0.031 0.031 0.03
11/11/2020 04:15 2.14 20:45 3.48 2.78 04:15 0.27 20:45 0.56 0.41 04:15 0.014 20:45 0.058 0.032 0.032 -
11/12/2020 04:25 2.06 11:40 3.49 2.84 01:30 0.24 10:35 0.55 0.40 02:15 0.012 17:30 0.066 0.036 0.036 0.16
11/13/2020 21:50 2.52 06:25 4.37 2.92 12:55 0.28 06:25 0.64 0.44 21:50 0.024 06:25 0.089 0.040 0.040 0.38
11/14/2020 03:45 2.05 17:50 4.26 2.85 06:50 0.22 17:45 0.65 0.41 03:45 0.012 17:50 0.087 0.040 0.040 0.47
11/15/2020 06:20 2.05 22:35 4.12 2.92 06:20 0.24 18:20 0.62 0.43 06:20 0.012 18:20 0.083 0.040 0.040 0.19
11/16/2020 23:50 2.51 13:05 4.00 3.02 22:20 0.35 12:30 0.61 0.46 01:45 0.024 08:55 0.086 0.041 0.041 0.31
11/17/2020 04:10 1.98 19:05 4.64 2.78 04:00 0.23 19:05 0.78 0.41 04:00 0.011 19:05 0.116 0.037 0.037 0.20
11/18/2020 03:50 2.13 10:10 3.44 2.80 03:50 0.26 09:55 0.59 0.41 03:50 0.014 10:00 0.080 0.038 0.038 0.30
11/19/2020 02:50 2.15 03:05 4.20 2.83 04:45 0.24 12:35 0.67 0.42 02:50 0.014 12:45 0.090 0.038 0.038 0.50
11/20/2020 02:15 2.06 15:50 3.27 2.66 02:15 0.24 00:25 0.53 0.38 02:15 0.012 11:15 0.066 0.032 0.032 0.01
11/21/2020 03:25 2.01 11:15 3.78 2.67 03:25 0.23 11:25 0.60 0.39 03:25 0.011 11:25 0.074 0.033 0.033 -
11/22/2020 01:25 2.01 17:40 3.43 2.73 01:25 0.23 08:55 0.67 0.41 01:20 0.011 13:10 0.077 0.036 0.036 0.21
11/23/2020 03:55 2.20 13:00 3.29 2.74 04:10 0.21 05:10 0.63 0.41 04:10 0.015 05:10 0.080 0.037 0.037 0.14
11/24/2020 05:40 2.02 15:30 3.58 2.63 05:40 0.23 15:30 0.68 0.39 05:40 0.011 15:30 0.139 0.034 0.034 0.21
11/25/2020 03:05 2.11 18:30 3.22 2.67 02:40 0.25 10:25 0.52 0.40 03:05 0.013 18:25 0.063 0.034 0.034 0.05
11/26/2020 03:50 1.99 11:55 3.22 2.63 03:50 0.23 11:50 0.54 0.39 03:50 0.011 12:20 0.067 0.034 0.034 0.02
11/27/2020 04:20 1.90 19:05 3.08 2.53 02:20 0.21 18:55 0.55 0.36 02:20 0.009 18:55 0.064 0.031 0.031 -
11/28/2020 05:10 1.88 11:30 3.20 2.62 05:10 0.20 11:30 0.63 0.40 05:10 0.009 11:30 0.077 0.037 0.037 0.05
11/29/2020 05:30 2.01 13:50 3.51 2.60 08:40 0.22 13:45 0.70 0.38 05:30 0.011 13:45 0.084 0.032 0.032 -
11/30/2020 02:20 1.95 05:10 3.38 2.66 02:20 0.22 03:40 0.64 0.41 02:20 0.010 03:40 0.089 0.034 0.034 0.36
12/01/2020 02:20 1.96 21:30 3.26 2.58 02:20 0.22 10:35 0.64 0.39 02:20 0.010 10:35 0.076 0.032 0.032 -
12/02/2020 04:00 1.90 10:35 3.18 2.53 04:00 0.20 17:40 0.58 0.38 04:00 0.009 17:50 0.068 0.030 0.030 0.01
12/03/2020 04:05 1.91 18:35 3.17 2.52 02:30 0.21 20:50 0.61 0.38 02:35 0.009 20:50 0.070 0.032 0.032 -
12/04/2020 04:10 1.78 10:05 3.18 2.56 03:05 0.21 15:40 0.65 0.38 03:05 0.009 15:40 0.067 0.031 0.031 -
12/05/2020 02:10 1.89 13:30 3.28 2.54 07:45 0.18 11:00 0.59 0.38 02:10 0.009 11:35 0.073 0.034 0.034 0.03
12/06/2020 04:00 1.91 20:15 3.13 2.56 04:00 0.21 18:45 0.57 0.38 04:00 0.009 18:25 0.069 0.033 0.033 0.03
12/07/2020 03:45 1.86 21:10 3.03 2.52 02:20 0.20 20:20 0.70 0.44 02:15 0.009 21:10 0.080 0.038 0.038 -
12/08/2020 02:30 1.91 19:00 4.01 2.82 03:15 0.24 15:30 0.66 0.49 03:30 0.017 11:45 0.093 0.053 0.053 0.87
12/09/2020 05:50 2.06 02:25 3.59 2.71 05:50 0.25 23:15 0.72 0.40 05:50 0.012 19:40 0.075 0.037 0.037 0.17
12/10/2020 03:35 1.75 17:55 3.23 2.52 02:45 0.20 20:20 0.68 0.41 02:45 0.009 20:15 0.097 0.038 0.038 0.07
12/11/2020 05:15 1.86 12:50 3.21 2.57 05:10 0.20 19:25 0.64 0.44 05:10 0.009 19:25 0.075 0.041 0.041 0.02
12/12/2020 04:55 2.05 12:35 3.43 2.64 04:35 0.19 14:50 0.68 0.46 04:55 0.012 14:50 0.092 0.045 0.045 0.01
12/13/2020 05:15 1.89 08:50 3.62 2.64 05:15 0.20 16:10 0.63 0.45 05:00 0.009 10:55 0.091 0.045 0.045 0.24
12/14/2020 00:20 2.10 13:35 3.17 2.59 01:05 0.23 10:40 0.59 0.40 00:15 0.014 13:35 0.077 0.037 0.037 0.05
12/15/2020 02:35 1.83 15:45 6.49 2.68 02:30 0.21 15:40 1.17 0.46 02:30 0.009 15:45 0.237 0.047 0.047 0.58
12/16/2020 02:55 1.91 14:10 3.56 2.62 02:55 0.21 13:40 0.69 0.45 02:55 0.009 14:10 0.100 0.046 0.046 0.39
12/17/2020 03:30 1.92 12:45 3.30 2.58 03:30 0.21 12:45 0.71 0.45 03:30 0.009 12:45 0.092 0.043 0.043 0.08
12/18/2020 01:20 2.01 18:30 3.40 2.65 04:45 0.20 18:45 0.70 0.42 01:20 0.011 18:50 0.101 0.041 0.041 0.25
12/19/2020 03:25 1.97 21:05 3.51 2.66 03:25 0.22 20:55 0.72 0.46 03:30 0.011 20:55 0.107 0.048 0.048 0.37
12/20/2020 04:55 1.89 10:50 3.20 2.53 03:30 0.16 18:40 0.54 0.38 04:55 0.009 10:50 0.065 0.035 0.035 0.04
12/21/2020 04:05 2.05 16:05 6.72 2.98 04:05 0.24 16:00 0.85 0.46 04:05 0.012 16:05 0.223 0.052 0.052 1.07
12/22/2020 04:00 1.96 21:20 3.33 2.67 03:15 0.22 21:20 0.54 0.39 04:00 0.010 11:15 0.056 0.033 0.033 -
12/23/2020 05:05 2.25 11:35 3.60 2.95 04:00 0.30 09:30 0.60 0.43 05:05 0.017 11:35 0.058 0.036 0.036 -
12/24/2020 05:30 2.18 15:40 3.99 2.99 05:30 0.32 15:40 0.59 0.45 05:30 0.017 15:40 0.073 0.038 0.038 -
12/25/2020 04:45 2.03 15:10 4.31 2.97 04:40 0.30 15:10 0.63 0.44 04:45 0.014 15:10 0.086 0.038 0.038 0.49
12/26/2020 03:15 2.17 17:45 4.09 2.93 03:15 0.32 17:45 0.60 0.44 03:15 0.017 17:45 0.077 0.037 0.037 0.02
12/27/2020 05:55 2.22 08:55 3.97 2.99 05:05 0.33 08:55 0.59 0.45 05:55 0.018 08:55 0.072 0.039 0.039 0.13
12/28/2020 04:05 2.16 12:00 3.75 2.95 03:30 0.32 12:00 0.56 0.44 03:30 0.017 12:00 0.063 0.037 0.037 -
12/29/2020 02:50 2.19 19:25 4.45 2.99 02:50 0.32 19:25 0.65 0.45 02:55 0.017 19:25 0.093 0.038 0.038 0.14
12/30/2020 00:00 2.69 05:50 4.37 3.31 00:00 0.40 05:45 0.64 0.49 00:00 0.029 05:45 0.089 0.048 0.048 0.78
12/31/2020 05:45 2.18 01:45 3.82 2.99 05:45 0.32 01:45 0.57 0.45 05:45 0.017 01:45 0.066 0.038 0.038 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 8.143 30.65
Average 3.07 0.48 0.041
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AUB_A1a_30822
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 1.73 0.71 0.029
Minimum 1.14 0.25 0.008
Maximum 3.27 2.37 0.113
Min Time 12/31/2020 4:00:00 AM 01/20/2021 9:00:00 PM 11/03/2020 2:00:00 AM
Max Time 04/02/2021 7:00:00 PM 12/11/2020 12:00:00 PM 12/10/2020 6:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.842
VFINAL (ft/s) 99.842
QFINAL (MGD - Total MG) 99.842
Pipe Elliptical (10 in H x 9.88 in W)
Silt 0.00 (in)
Page 588 of 1163
4455 S. 134th Place
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Hydrograph Report
AUB_A1a_30822
Page 589 of 1163
4455 S. 134th Place
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Scattergraph Report
AUB_A1a_30822
Page 590 of 1163
4455 S. 134th Place
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A1a_30822Pipe: Elliptical (10 in H x 9.88 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 18:55 1.17 10:45 1.35 1.25 11:30 0.48 20:20 0.92 0.70 11:20 0.013 18:10 0.023 0.018 0.018 0.51
01/02/2021 00:20 1.16 04:25 1.33 1.21 10:55 0.70 21:05 0.99 0.84 11:00 0.017 20:40 0.025 0.020 0.020 1.69
01/03/2021 07:55 1.19 19:45 1.30 1.23 13:50 0.78 00:00 1.00 0.91 13:50 0.019 19:45 0.026 0.022 0.022 0.65
01/04/2021 00:40 1.24 22:00 1.78 1.46 19:05 0.52 08:30 1.25 0.81 19:05 0.015 12:05 0.043 0.025 0.025 0.48
01/05/2021 00:45 1.12 16:50 1.83 1.45 23:10 0.42 09:25 0.97 0.61 21:20 0.011 09:25 0.033 0.019 0.019 0.52
01/06/2021 05:20 1.18 11:50 2.18 1.49 11:20 0.31 16:50 0.79 0.55 04:25 0.012 14:05 0.031 0.018 0.018 0.22
01/07/2021 23:20 1.21 08:30 1.94 1.47 12:20 0.33 10:30 1.04 0.61 19:30 0.013 10:30 0.042 0.019 0.019 -
01/08/2021 00:05 1.24 18:05 2.82 1.71 15:20 0.30 07:15 0.81 0.53 00:05 0.014 18:55 0.033 0.020 0.020 0.22
01/09/2021 16:25 1.44 00:40 1.95 1.62 00:15 0.36 12:25 0.66 0.47 07:00 0.013 13:00 0.026 0.017 0.017 -
01/10/2021 18:00 1.34 08:25 1.77 1.54 17:05 0.34 12:20 0.70 0.53 17:05 0.012 07:55 0.023 0.018 0.018 0.07
01/11/2021 03:05 1.42 11:55 2.55 1.72 20:25 0.38 02:15 0.68 0.52 23:10 0.012 11:00 0.042 0.021 0.021 1.06
01/12/2021 22:15 1.48 23:20 1.94 1.69 11:00 0.30 23:00 0.84 0.50 00:25 0.012 23:20 0.040 0.019 0.019 2.10
01/13/2021 07:05 1.52 04:35 2.36 1.80 18:10 0.30 12:50 0.81 0.52 18:10 0.013 03:10 0.038 0.022 0.022 0.09
01/14/2021 05:45 1.63 08:25 2.49 1.82 13:55 0.28 10:25 0.82 0.54 07:15 0.013 10:25 0.052 0.023 0.023 0.01
01/15/2021 09:05 1.64 17:05 2.35 1.82 14:25 0.25 14:30 0.82 0.56 01:15 0.013 14:30 0.046 0.024 0.024 0.09
01/16/2021 22:30 1.52 19:40 2.30 1.79 11:05 0.37 20:00 0.96 0.60 22:25 0.016 20:00 0.041 0.025 0.025 -
01/17/2021 19:30 1.39 10:35 2.10 1.67 19:40 0.38 13:20 0.90 0.58 19:40 0.012 10:35 0.034 0.022 0.022 0.10
01/18/2021 01:25 1.46 19:25 2.41 1.77 23:35 0.30 06:30 0.81 0.50 19:45 0.012 02:40 0.035 0.021 0.021 -
01/19/2021 16:20 1.61 07:50 3.38 1.99 23:25 0.24 07:50 0.81 0.47 19:10 0.011 07:50 0.084 0.024 0.024 0.01
01/20/2021 14:00 1.64 16:25 2.43 1.86 20:55 0.22 15:05 1.01 0.37 03:20 0.010 15:05 0.048 0.017 0.017 -
01/21/2021 20:45 1.47 13:10 2.26 1.76 04:50 0.19 16:15 0.94 0.43 04:50 0.007 08:45 0.043 0.018 0.018 0.11
01/22/2021 07:20 1.46 13:45 2.08 1.64 21:30 0.22 11:00 1.03 0.39 01:10 0.008 11:00 0.038 0.015 0.015 -
01/23/2021 19:30 1.30 03:25 1.70 1.48 02:40 0.20 12:00 0.83 0.49 02:40 0.007 12:00 0.026 0.016 0.016 -
01/24/2021 06:25 1.33 11:25 2.01 1.45 19:10 0.32 11:35 1.15 0.57 19:10 0.009 11:35 0.042 0.018 0.018 0.16
01/25/2021 12:25 1.35 18:35 2.28 1.61 18:20 0.44 13:45 1.22 0.82 17:45 0.016 20:20 0.053 0.030 0.030 0.04
01/26/2021 06:25 1.36 01:25 1.93 1.65 17:00 0.53 08:10 1.32 0.82 18:50 0.020 09:15 0.053 0.031 0.031 -
01/27/2021 01:50 1.52 08:30 2.38 1.70 23:50 0.53 11:30 1.37 0.83 01:50 0.018 12:45 0.060 0.033 0.033 0.14
01/28/2021 01:55 1.49 23:15 2.11 1.72 18:30 0.38 15:00 1.29 0.73 18:25 0.013 15:00 0.055 0.029 0.029 0.24
01/29/2021 23:10 1.41 08:35 2.41 1.81 19:00 0.35 12:05 1.27 0.72 19:00 0.012 08:40 0.051 0.030 0.030 0.03
01/30/2021 10:50 1.36 14:20 1.64 1.45 14:45 0.54 14:00 1.10 0.80 21:30 0.016 14:00 0.035 0.025 0.025 0.07
01/31/2021 18:50 1.32 18:25 1.69 1.48 15:20 0.39 20:35 1.03 0.73 22:05 0.012 20:35 0.034 0.024 0.024 0.12
02/01/2021 05:40 1.28 09:00 2.23 1.71 01:15 0.48 12:10 1.30 0.73 05:00 0.015 12:10 0.056 0.029 0.029 0.82
02/02/2021 01:45 1.85 09:35 2.26 2.03 19:50 0.40 10:30 1.23 0.74 19:50 0.021 10:30 0.066 0.037 0.037 0.31
02/03/2021 05:10 1.76 12:30 2.14 2.00 19:25 0.36 08:30 1.05 0.69 19:25 0.017 08:30 0.053 0.034 0.034 0.06
02/04/2021 05:55 1.75 11:20 2.22 1.95 00:10 0.38 07:55 0.99 0.71 00:10 0.017 07:55 0.051 0.034 0.034 0.07
02/05/2021 08:10 1.84 10:25 2.16 1.94 17:25 0.46 07:15 0.98 0.69 12:35 0.022 10:35 0.050 0.033 0.033 0.01
02/06/2021 15:25 1.81 02:20 2.18 1.86 02:05 0.48 13:25 0.85 0.64 02:05 0.021 13:30 0.039 0.028 0.028 0.01
02/07/2021 09:00 1.72 14:15 2.09 1.85 12:55 0.41 15:55 1.06 0.66 12:55 0.017 15:55 0.050 0.029 0.029 -
02/08/2021 21:35 1.73 17:45 2.30 1.98 13:40 0.42 07:55 1.16 0.71 21:35 0.019 08:00 0.057 0.035 0.035 -
02/09/2021 02:05 1.81 17:45 2.28 1.99 21:05 0.42 12:40 0.99 0.66 23:20 0.020 12:40 0.055 0.033 0.033 -
02/10/2021 16:55 1.59 10:05 2.62 1.99 03:50 0.42 13:10 1.21 0.67 18:20 0.018 13:10 0.066 0.034 0.034 -
02/11/2021 22:30 1.69 12:25 2.51 1.91 19:50 0.46 12:50 1.10 0.69 19:50 0.020 08:55 0.069 0.032 0.032 -
02/12/2021 19:10 1.54 09:30 2.10 1.77 01:15 0.49 10:00 1.19 0.69 18:35 0.019 09:55 0.052 0.029 0.029 -
02/13/2021 05:25 1.69 18:15 2.70 1.93 12:45 0.45 18:25 0.92 0.61 12:10 0.018 18:15 0.055 0.029 0.029 0.08
02/14/2021 19:30 1.81 13:55 2.63 2.29 11:00 0.57 19:15 1.13 0.66 18:55 0.031 19:15 0.080 0.040 0.040 0.71
02/15/2021 01:50 1.80 17:00 3.23 2.48 18:15 0.49 09:40 1.21 0.77 05:55 0.031 09:40 0.087 0.051 0.051 0.78
02/16/2021 14:15 2.50 16:40 2.91 2.61 17:30 0.35 01:50 0.67 0.50 17:30 0.024 06:10 0.047 0.036 0.036 0.07
02/17/2021 20:20 1.76 10:10 3.10 2.36 03:40 0.35 11:25 1.33 0.65 03:40 0.025 11:25 0.085 0.040 0.040 -
02/18/2021 01:00 1.80 10:05 2.52 2.08 20:40 0.48 09:10 1.39 0.78 20:40 0.024 08:45 0.088 0.041 0.041 0.09
02/19/2021 20:35 1.77 12:30 2.40 2.06 04:20 0.47 12:05 1.41 0.74 21:55 0.023 12:05 0.088 0.039 0.039 0.17
02/20/2021 13:55 1.75 16:00 2.37 1.95 04:50 0.49 14:05 1.20 0.71 04:50 0.022 14:05 0.063 0.034 0.034 0.07
02/21/2021 13:05 1.56 13:40 2.17 1.90 00:25 0.44 05:05 1.07 0.77 00:25 0.019 13:40 0.055 0.035 0.035 0.42
02/22/2021 22:35 1.84 14:20 2.65 2.12 02:45 0.47 09:20 1.43 0.77 02:45 0.023 09:20 0.088 0.042 0.042 0.98
02/23/2021 04:45 1.82 11:35 2.39 2.07 03:25 0.38 08:05 1.18 0.70 04:45 0.016 08:05 0.071 0.037 0.037 0.27
02/24/2021 23:05 1.69 11:10 2.57 2.05 18:35 0.50 11:10 1.31 0.73 22:15 0.021 11:10 0.092 0.038 0.038 -
02/25/2021 00:05 1.62 07:25 2.41 2.10 01:20 0.43 10:10 1.22 0.76 01:45 0.016 10:10 0.070 0.041 0.041 0.18
02/26/2021 11:05 2.05 11:20 2.62 2.21 15:40 0.58 07:05 1.26 0.77 00:05 0.032 07:05 0.069 0.044 0.044 0.10
02/27/2021 19:20 1.98 10:50 2.65 2.14 17:45 0.64 08:15 1.01 0.78 19:20 0.031 10:50 0.075 0.043 0.043 0.02
02/28/2021 09:30 1.96 16:00 2.69 2.06 14:55 0.48 16:00 1.10 0.70 14:05 0.025 16:00 0.083 0.037 0.037 0.02
03/01/2021 19:15 1.86 11:00 2.75 2.13 19:15 0.56 14:10 1.43 0.73 18:55 0.025 14:10 0.100 0.040 0.040 -
03/02/2021 21:20 1.75 15:25 2.61 2.04 21:20 0.48 15:20 1.06 0.68 19:55 0.020 15:20 0.066 0.035 0.035 -
03/03/2021 20:30 1.59 16:10 2.51 2.05 20:30 0.37 09:20 1.40 0.73 20:30 0.013 09:20 0.085 0.038 0.038 -
03/04/2021 21:00 1.63 15:40 2.46 2.04 21:00 0.39 08:30 1.05 0.66 21:00 0.015 08:30 0.063 0.034 0.034 0.20
03/05/2021 18:50 1.66 13:15 2.39 2.03 18:50 0.41 10:35 1.13 0.71 18:50 0.016 10:35 0.070 0.036 0.036 0.05
03/06/2021 15:20 1.65 14:35 2.20 1.90 03:05 0.42 15:55 0.93 0.68 03:05 0.016 14:35 0.050 0.031 0.031 -
03/07/2021 10:15 1.63 05:40 2.65 1.91 14:30 0.40 05:20 1.15 0.66 14:30 0.015 05:20 0.063 0.031 0.031 0.04
03/08/2021 00:05 1.77 09:45 3.04 2.09 09:40 0.46 08:25 1.11 0.81 23:30 0.030 09:15 0.083 0.043 0.043 -
03/09/2021 21:05 1.82 10:30 2.74 2.09 10:20 0.45 13:30 1.15 0.76 23:20 0.024 13:30 0.073 0.041 0.041 0.01
03/10/2021 22:05 1.74 16:55 2.59 2.09 22:05 0.49 08:55 1.14 0.74 22:05 0.020 08:55 0.069 0.040 0.040 -
03/11/2021 06:40 1.76 12:40 2.93 2.10 12:30 0.47 07:55 1.16 0.76 01:00 0.024 07:55 0.067 0.041 0.041 -
Page 591 of 1163
71
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 23:40 1.67 15:10 2.97 2.03 18:05 0.56 15:10 1.09 0.78 23:40 0.025 15:10 0.094 0.040 0.040 -
03/13/2021 00:00 1.65 20:10 2.02 1.91 22:20 0.64 13:25 0.88 0.76 00:00 0.026 10:15 0.040 0.035 0.035 -
03/14/2021 16:00 1.78 17:20 2.22 1.96 14:05 0.56 17:25 1.31 0.75 22:30 0.026 17:20 0.070 0.036 0.036 0.30
03/15/2021 23:50 1.64 07:25 2.47 2.05 22:30 0.50 07:20 1.26 0.74 23:00 0.020 07:20 0.080 0.039 0.039 -
03/16/2021 05:10 1.67 13:00 2.70 2.07 22:00 0.48 13:30 1.24 0.77 22:00 0.020 12:50 0.082 0.041 0.041 -
03/17/2021 23:15 1.75 12:00 2.43 2.04 21:30 0.48 09:35 1.25 0.75 00:30 0.021 09:35 0.075 0.039 0.039 -
03/18/2021 22:15 1.64 13:45 2.74 2.00 23:15 0.50 07:55 1.05 0.71 00:05 0.022 13:45 0.078 0.036 0.036 0.11
03/19/2021 06:30 1.76 15:25 2.67 2.19 19:50 0.32 11:45 0.94 0.60 19:50 0.021 11:45 0.058 0.033 0.033 0.03
03/20/2021 12:10 1.81 08:50 2.52 2.20 00:10 0.33 13:05 1.15 0.60 00:05 0.020 13:10 0.067 0.033 0.033 0.17
03/21/2021 15:45 1.95 16:35 2.18 2.04 00:55 0.69 12:15 1.05 0.83 00:55 0.034 12:15 0.058 0.043 0.043 0.07
03/22/2021 18:00 1.69 08:35 2.54 2.08 21:25 0.43 08:05 1.21 0.78 20:10 0.019 08:05 0.078 0.041 0.041 0.11
03/23/2021 22:45 1.69 09:50 2.50 2.05 10:00 0.44 09:30 1.24 0.71 22:50 0.020 09:30 0.080 0.037 0.037 -
03/24/2021 20:50 1.81 11:55 2.67 2.05 11:55 0.43 07:10 1.12 0.72 21:25 0.020 09:50 0.072 0.038 0.038 0.34
03/25/2021 03:55 1.78 14:00 2.54 2.05 20:35 0.33 08:05 1.24 0.75 20:35 0.016 08:05 0.079 0.039 0.039 0.27
03/26/2021 02:20 1.80 14:00 2.89 2.13 14:25 0.36 11:25 1.20 0.70 02:15 0.023 11:25 0.067 0.037 0.037 -
03/27/2021 16:25 1.85 09:50 2.34 1.95 07:20 0.42 09:50 0.96 0.61 10:20 0.020 09:50 0.059 0.029 0.029 -
03/28/2021 05:15 1.83 16:40 2.20 1.90 17:45 0.43 08:45 1.02 0.70 17:45 0.020 08:45 0.052 0.032 0.032 0.37
03/29/2021 22:30 1.69 13:45 2.44 1.97 18:20 0.45 07:35 1.22 0.80 19:50 0.018 13:40 0.072 0.040 0.040 -
03/30/2021 23:50 1.66 12:25 2.37 1.92 22:45 0.51 10:05 1.48 0.84 22:45 0.020 10:05 0.090 0.040 0.040 -
03/31/2021 01:00 1.66 07:55 2.63 1.91 07:50 0.52 09:05 1.36 0.85 00:00 0.020 09:05 0.085 0.040 0.040 -
04/01/2021 00:00 1.66 14:10 2.61 2.03 17:05 0.38 07:10 1.58 0.83 18:15 0.020 14:10 0.107 0.042 0.042 -
04/02/2021 06:45 1.85 20:30 3.37 2.38 16:20 0.30 11:20 1.47 0.68 04:25 0.023 13:25 0.085 0.041 0.041 -
04/03/2021 22:10 1.69 17:40 2.13 1.87 17:45 0.45 17:50 1.12 0.74 19:05 0.019 17:50 0.061 0.033 0.033 -
04/04/2021 10:10 1.67 20:55 2.38 1.94 19:45 0.42 12:25 1.33 0.74 19:45 0.024 12:25 0.060 0.034 0.034 -
04/05/2021 18:25 1.63 14:10 2.79 1.97 00:35 0.53 09:50 1.56 0.87 18:15 0.021 09:50 0.112 0.043 0.043 -
04/06/2021 05:40 1.64 10:10 2.39 1.91 17:10 0.52 10:10 1.55 0.95 21:05 0.021 10:10 0.099 0.045 0.045 -
04/07/2021 02:15 1.66 08:25 2.42 1.90 19:15 0.44 14:20 1.63 0.85 19:15 0.017 10:35 0.100 0.040 0.040 0.22
04/08/2021 17:35 1.63 11:30 2.36 1.88 19:30 0.38 15:30 1.39 0.78 19:30 0.015 13:35 0.081 0.036 0.036 -
04/09/2021 04:15 1.67 10:20 2.54 1.91 22:05 0.39 14:30 1.31 0.79 22:05 0.015 10:20 0.083 0.037 0.037 0.03
04/10/2021 17:15 1.66 23:05 2.48 1.87 20:05 0.36 15:40 1.15 0.69 15:45 0.018 12:35 0.049 0.030 0.030 0.02
04/11/2021 12:40 2.28 02:45 2.55 2.44 20:50 0.31 02:45 0.60 0.43 20:50 0.020 02:45 0.042 0.028 0.028 -
04/12/2021 11:35 1.62 01:30 2.56 1.98 00:40 0.33 08:05 1.69 0.76 18:40 0.019 08:05 0.079 0.035 0.035 -
04/13/2021 23:50 1.63 02:10 2.00 1.78 21:40 0.41 08:25 1.51 0.77 21:40 0.016 08:25 0.065 0.032 0.032 -
04/14/2021 21:40 1.55 05:20 1.88 1.68 00:20 0.44 07:15 1.11 0.73 00:20 0.017 07:15 0.047 0.028 0.028 -
09/22/2020 22:50 1.79 13:40 2.79 2.19 18:30 0.35 08:05 0.86 0.45 22:40 0.015 08:05 0.041 0.026 0.017 -
09/23/2020 01:05 1.80 10:00 2.73 2.15 00:45 0.36 09:55 0.55 0.42 00:45 0.015 09:55 0.042 0.024 0.024 -
09/24/2020 23:20 1.53 19:50 2.78 2.04 23:00 0.26 10:25 0.94 0.50 23:00 0.015 20:35 0.068 0.025 0.025 -
09/25/2020 00:05 1.52 10:25 2.17 1.68 18:10 0.50 14:55 0.90 0.65 00:00 0.019 08:10 0.048 0.025 0.025 -
09/26/2020 21:45 1.44 15:45 2.62 1.54 15:40 0.47 15:55 0.84 0.60 06:50 0.018 15:55 0.041 0.020 0.020 -
09/27/2020 23:25 1.43 12:45 1.98 1.53 15:20 0.46 11:25 0.75 0.60 23:40 0.017 12:45 0.032 0.020 0.020 -
09/28/2020 05:10 1.39 15:55 2.25 1.76 22:25 0.43 13:50 0.85 0.61 03:25 0.017 13:50 0.044 0.025 0.025 -
09/29/2020 07:15 1.63 10:10 2.77 2.04 13:10 0.38 09:30 0.81 0.47 23:55 0.017 10:05 0.050 0.024 0.024 -
09/30/2020 22:35 1.64 08:40 2.64 2.01 07:40 0.37 17:25 0.60 0.46 00:00 0.017 08:40 0.040 0.023 0.023 -
10/01/2020 01:35 1.64 12:25 2.65 1.87 11:50 0.30 10:15 0.81 0.51 01:40 0.017 12:40 0.047 0.023 0.023 -
10/02/2020 16:10 1.33 13:45 2.55 1.73 17:05 0.26 13:45 1.04 0.53 17:05 0.008 13:45 0.073 0.022 0.022 -
10/03/2020 21:00 1.43 23:20 2.07 1.58 23:50 0.32 10:30 0.69 0.51 23:45 0.014 15:40 0.028 0.018 0.018 0.01
10/04/2020 16:45 1.38 06:15 1.89 1.51 16:45 0.30 17:35 0.68 0.49 16:45 0.009 06:20 0.030 0.016 0.016 0.01
10/05/2020 07:05 1.29 11:10 2.05 1.59 10:40 0.23 07:10 0.97 0.61 07:25 0.009 11:10 0.046 0.023 0.023 -
10/06/2020 03:50 1.39 07:45 1.93 1.59 12:05 0.32 07:45 0.85 0.59 12:05 0.009 07:45 0.040 0.021 0.021 -
10/07/2020 01:15 1.39 13:15 2.19 1.59 03:45 0.45 13:45 1.61 0.85 02:30 0.013 13:15 0.081 0.031 0.031 -
10/08/2020 17:25 1.15 07:25 1.86 1.43 17:25 0.57 11:00 1.83 1.05 17:25 0.013 10:25 0.073 0.033 0.033 -
10/09/2020 23:50 1.16 14:55 1.61 1.32 05:05 0.53 15:00 1.91 0.92 05:05 0.013 15:00 0.069 0.026 0.026 0.64
10/10/2020 19:55 1.21 01:55 1.68 1.35 00:45 0.57 02:50 1.80 0.79 20:20 0.014 01:55 0.064 0.022 0.022 1.04
10/11/2020 06:50 1.18 22:10 1.82 1.29 08:35 0.48 11:25 1.38 0.72 08:35 0.011 22:15 0.045 0.019 0.019 0.53
10/12/2020 09:20 1.21 06:10 1.74 1.30 16:40 0.52 08:05 1.87 0.90 16:40 0.014 07:55 0.051 0.024 0.024 -
10/13/2020 11:00 1.18 16:15 1.93 1.28 23:05 0.41 08:30 1.66 0.71 22:20 0.010 16:15 0.073 0.019 0.019 0.61
10/14/2020 07:00 1.20 09:10 1.47 1.27 00:10 0.43 10:45 1.08 0.63 00:00 0.011 12:00 0.031 0.016 0.016 -
10/15/2020 02:35 1.19 14:15 1.62 1.33 23:10 0.36 09:05 1.07 0.59 02:25 0.010 09:05 0.034 0.016 0.016 -
10/16/2020 13:45 1.19 10:20 1.44 1.27 01:05 0.38 10:20 1.00 0.50 03:00 0.010 10:20 0.031 0.013 0.013 -
10/17/2020 07:35 1.14 08:10 1.51 1.23 04:30 0.39 14:25 0.85 0.50 03:10 0.009 10:15 0.023 0.012 0.012 0.01
10/18/2020 10:35 1.16 15:50 1.49 1.25 05:05 0.43 15:50 0.99 0.54 04:50 0.011 15:50 0.032 0.014 0.014 0.03
10/19/2020 05:55 1.20 11:35 2.72 1.31 11:25 0.38 11:20 1.16 0.62 01:20 0.011 11:20 0.051 0.017 0.017 0.05
10/20/2020 04:10 1.18 10:35 1.72 1.35 02:50 0.39 10:35 1.91 0.74 03:05 0.009 10:35 0.076 0.022 0.022 -
10/21/2020 20:30 1.22 10:20 1.74 1.42 20:45 0.34 06:40 1.64 0.87 20:30 0.008 09:50 0.060 0.027 0.027 0.01
10/22/2020 03:20 1.21 09:15 1.67 1.34 19:55 0.29 10:20 1.01 0.55 18:45 0.008 10:20 0.035 0.016 0.016 -
10/23/2020 21:35 1.15 12:15 1.75 1.30 00:00 0.36 11:05 1.54 0.68 00:00 0.009 11:05 0.053 0.019 0.019 0.20
10/24/2020 06:55 1.16 14:55 1.50 1.31 02:15 0.46 09:25 1.18 0.73 02:10 0.011 14:50 0.035 0.020 0.020 0.02
10/25/2020 16:20 1.30 19:05 1.43 1.36 20:55 0.52 15:15 1.19 0.85 20:55 0.015 12:45 0.036 0.024 0.024 -
10/26/2020 16:45 1.19 14:50 1.80 1.36 03:10 0.44 13:20 1.46 0.69 17:40 0.011 08:25 0.046 0.020 0.020 -
10/27/2020 16:10 1.18 05:55 1.92 1.27 01:50 0.42 09:20 1.33 0.62 00:10 0.011 09:20 0.045 0.016 0.016 -
10/28/2020 10:35 1.19 06:30 1.78 1.35 01:50 0.30 11:10 1.37 0.56 18:10 0.009 11:15 0.045 0.015 0.015 -
10/29/2020 02:40 1.18 21:35 1.83 1.35 07:45 0.33 11:55 1.32 0.58 00:50 0.008 12:00 0.042 0.016 0.016 -
10/30/2020 08:30 1.22 11:25 2.10 1.56 17:55 0.31 17:40 1.36 0.62 17:55 0.012 17:40 0.069 0.021 0.021 0.10
10/31/2020 00:10 1.30 20:05 1.93 1.80 00:10 0.38 20:05 0.52 0.45 00:10 0.010 20:00 0.024 0.019 0.019 -
Page 592 of 1163
72
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 22:50 1.65 15:35 2.04 1.80 22:40 0.36 15:30 0.61 0.44 17:55 0.014 15:30 0.031 0.019 0.019 -
11/02/2020 17:50 1.23 16:25 2.50 1.63 08:55 0.24 13:20 1.00 0.48 08:55 0.007 16:30 0.049 0.018 0.018 -
11/03/2020 19:10 1.18 19:50 1.85 1.42 01:40 0.27 09:55 1.36 0.43 01:35 0.007 10:10 0.047 0.013 0.013 0.83
11/04/2020 10:40 1.23 01:20 2.11 1.51 00:05 0.35 14:50 0.96 0.46 09:00 0.009 10:30 0.036 0.015 0.015 0.09
11/05/2020 00:50 1.21 09:15 2.56 1.55 03:35 0.35 11:25 1.44 0.63 01:10 0.009 11:25 0.061 0.023 0.023 0.34
11/06/2020 08:30 1.28 10:00 2.88 1.91 09:20 0.26 08:55 1.54 0.66 01:00 0.013 13:00 0.090 0.032 0.032 0.10
11/07/2020 03:35 1.93 15:35 2.14 1.98 14:35 0.37 14:05 0.77 0.52 02:35 0.018 14:05 0.039 0.025 0.025 0.07
11/08/2020 20:55 1.95 16:55 2.11 1.99 14:00 0.32 17:15 0.83 0.48 11:05 0.016 17:15 0.042 0.024 0.024 0.01
11/09/2020 19:05 1.20 08:00 2.53 1.55 05:15 0.36 08:25 1.52 0.57 08:10 0.011 07:50 0.076 0.019 0.019 0.04
11/10/2020 07:50 1.19 14:00 1.65 1.29 10:50 0.42 07:00 1.27 0.65 08:20 0.011 07:20 0.036 0.017 0.017 0.03
11/11/2020 07:35 1.17 20:50 2.14 1.35 20:00 0.34 06:55 1.19 0.64 19:55 0.012 06:55 0.030 0.018 0.018 -
11/12/2020 17:25 1.16 12:50 2.00 1.31 12:10 0.35 20:45 0.96 0.59 07:55 0.011 12:50 0.038 0.016 0.016 0.16
11/13/2020 04:55 1.15 10:30 1.84 1.42 01:25 0.46 10:40 1.47 0.72 06:05 0.012 10:40 0.057 0.022 0.022 0.38
11/14/2020 21:05 1.22 05:10 1.77 1.45 14:55 0.50 16:40 1.26 0.70 22:00 0.012 16:40 0.038 0.022 0.022 0.47
11/15/2020 16:50 1.21 16:00 1.37 1.26 12:10 0.47 00:45 0.88 0.57 11:40 0.012 00:45 0.023 0.015 0.015 0.19
11/16/2020 21:15 1.16 09:25 1.84 1.30 07:25 0.43 10:00 2.38 0.62 07:25 0.011 10:00 0.074 0.017 0.017 0.31
11/17/2020 00:45 1.13 16:55 2.62 1.52 18:40 0.39 09:45 1.99 0.90 00:45 0.012 09:35 0.092 0.032 0.032 0.20
11/18/2020 02:00 1.22 08:05 1.67 1.38 00:15 0.41 17:00 1.84 0.89 02:20 0.010 16:15 0.066 0.027 0.027 0.30
11/19/2020 06:55 1.21 11:20 1.77 1.37 16:30 0.47 11:20 1.94 1.10 22:20 0.014 11:20 0.081 0.032 0.032 0.50
11/20/2020 20:40 1.25 14:20 2.88 1.40 06:40 0.41 09:35 1.99 1.00 06:40 0.011 09:35 0.079 0.031 0.031 0.01
11/21/2020 02:25 1.24 17:45 1.66 1.28 09:05 0.42 17:40 1.71 0.67 09:05 0.011 17:40 0.063 0.018 0.018 -
11/22/2020 21:40 1.23 17:10 1.60 1.31 02:25 0.50 16:30 1.61 0.73 02:25 0.013 17:10 0.056 0.020 0.020 0.21
11/23/2020 02:45 1.31 14:20 1.90 1.49 23:25 0.41 07:25 1.81 0.93 23:20 0.014 14:50 0.078 0.031 0.031 0.14
11/24/2020 21:50 1.20 11:05 2.25 1.45 02:55 0.39 12:40 2.31 0.83 20:50 0.011 14:25 0.082 0.027 0.027 0.21
11/25/2020 05:40 1.18 08:20 1.77 1.34 00:10 0.46 12:10 2.34 0.78 00:05 0.011 12:10 0.087 0.022 0.022 0.05
11/26/2020 06:40 1.24 00:00 1.31 1.27 19:15 0.39 00:40 0.80 0.66 19:15 0.010 00:40 0.021 0.017 0.017 0.02
11/27/2020 18:20 1.26 12:15 1.47 1.32 10:15 0.48 12:40 1.06 0.68 03:10 0.013 12:40 0.033 0.018 0.018 -
11/28/2020 19:00 1.25 11:35 1.36 1.31 15:45 0.40 13:45 0.76 0.60 15:35 0.011 13:45 0.021 0.016 0.016 0.05
11/29/2020 00:00 1.26 12:40 1.32 1.29 11:10 0.44 17:50 0.77 0.63 11:10 0.012 17:50 0.020 0.016 0.016 -
11/30/2020 00:00 1.29 17:25 2.40 1.41 20:40 0.40 13:25 2.46 0.80 07:15 0.012 17:25 0.120 0.024 0.024 0.36
12/01/2020 22:45 1.39 14:10 2.47 1.57 14:50 0.38 08:40 2.58 0.95 14:50 0.013 12:50 0.112 0.036 0.036 -
12/02/2020 05:05 1.38 09:10 1.85 1.50 23:55 0.37 11:25 2.52 0.86 01:10 0.012 11:20 0.089 0.029 0.029 0.01
12/03/2020 22:10 1.43 10:55 2.21 1.54 08:55 0.35 15:15 2.12 0.94 09:55 0.012 11:00 0.077 0.032 0.032 -
12/04/2020 23:55 1.29 08:30 1.88 1.48 23:45 0.32 16:25 1.89 0.86 22:30 0.009 08:30 0.085 0.028 0.028 -
12/05/2020 00:00 1.30 18:10 1.61 1.38 00:05 0.32 19:55 1.66 0.75 00:05 0.008 11:35 0.050 0.022 0.022 0.03
12/06/2020 00:00 1.34 13:05 1.41 1.36 01:10 0.37 21:40 0.94 0.50 01:10 0.010 21:40 0.027 0.014 0.014 0.03
12/07/2020 07:45 1.18 14:20 3.18 1.76 21:05 0.23 10:40 1.34 0.53 07:35 0.009 10:40 0.094 0.022 0.022 -
12/08/2020 17:40 1.22 08:30 2.67 1.86 05:20 0.24 23:25 2.13 0.91 12:10 0.011 22:20 0.086 0.039 0.039 0.87
12/09/2020 10:35 1.50 13:45 2.58 1.67 10:35 1.31 13:40 2.50 1.63 10:35 0.043 13:45 0.167 0.063 0.063 0.17
12/10/2020 03:25 1.60 18:25 2.22 1.77 09:10 1.29 18:25 2.25 1.67 09:10 0.046 18:25 0.130 0.071 0.071 0.07
12/11/2020 18:45 1.31 10:25 2.37 1.72 21:20 0.53 12:35 2.56 1.63 21:20 0.015 13:40 0.139 0.068 0.068 0.02
12/12/2020 12:10 1.32 23:35 2.26 1.51 04:00 0.79 19:25 2.11 1.33 01:45 0.023 19:10 0.093 0.045 0.045 0.01
12/13/2020 14:50 1.53 06:15 2.09 1.81 08:25 0.66 18:35 1.90 1.12 08:25 0.024 18:35 0.096 0.048 0.048 0.24
12/14/2020 04:15 1.41 20:00 2.30 1.83 04:05 0.38 14:55 1.73 1.02 04:05 0.012 14:55 0.079 0.045 0.045 0.05
12/15/2020 20:35 1.57 00:50 2.25 1.86 03:30 0.48 15:40 2.06 1.00 01:25 0.023 10:25 0.092 0.044 0.044 0.58
12/16/2020 02:15 1.59 13:05 2.15 1.78 03:15 0.72 10:40 2.31 1.12 03:15 0.026 10:40 0.104 0.047 0.047 0.39
12/17/2020 00:05 1.61 18:10 2.35 1.81 15:50 0.55 13:00 1.88 0.80 01:15 0.023 13:00 0.089 0.035 0.035 0.08
12/18/2020 18:00 1.68 12:00 2.29 1.87 18:00 0.41 10:15 1.51 0.77 18:00 0.016 13:40 0.065 0.035 0.035 0.25
12/19/2020 06:30 1.63 00:25 2.15 1.82 10:25 0.37 15:30 1.13 0.68 10:25 0.014 15:30 0.061 0.030 0.030 0.37
12/20/2020 22:20 1.51 17:05 2.13 1.83 23:40 0.42 21:25 1.35 0.71 22:20 0.014 21:25 0.064 0.031 0.031 0.04
12/21/2020 01:00 1.51 10:05 2.56 1.79 00:15 0.40 13:45 1.80 0.81 00:15 0.013 17:15 0.092 0.035 0.035 1.07
12/22/2020 12:45 1.63 07:00 2.17 1.76 00:20 0.38 17:25 1.68 0.84 00:20 0.015 07:00 0.065 0.035 0.035 -
12/23/2020 07:00 1.42 08:15 2.17 1.80 09:35 0.37 14:05 1.36 0.83 09:05 0.015 19:05 0.061 0.036 0.036 -
12/24/2020 22:40 1.46 05:30 2.20 1.78 08:25 0.33 05:30 1.22 0.72 08:25 0.012 05:30 0.069 0.031 0.031 -
12/25/2020 07:25 1.51 16:30 1.78 1.59 07:25 0.45 16:30 0.73 0.53 03:40 0.015 16:30 0.031 0.019 0.019 0.49
12/26/2020 19:00 1.35 00:10 2.03 1.63 18:00 0.29 01:10 1.00 0.57 18:00 0.008 01:10 0.051 0.022 0.022 0.02
12/27/2020 17:45 1.39 00:10 1.90 1.50 08:10 0.37 00:10 0.87 0.48 06:30 0.013 00:10 0.040 0.016 0.016 0.13
12/28/2020 18:25 1.18 13:45 2.50 1.62 06:10 0.24 14:50 1.06 0.55 19:15 0.012 13:45 0.044 0.020 0.020 -
12/29/2020 01:40 1.14 08:05 1.71 1.35 23:40 0.39 11:10 0.96 0.56 05:45 0.011 10:55 0.028 0.016 0.016 0.14
12/30/2020 22:35 1.12 08:05 2.64 1.30 07:55 0.25 13:05 1.13 0.72 00:00 0.012 08:05 0.043 0.018 0.018 0.78
12/31/2020 00:40 1.13 16:15 1.80 1.21 16:15 0.47 08:35 0.98 0.79 17:50 0.014 11:05 0.026 0.019 0.019 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 5.890 30.65
Average 1.73 0.71 0.029
Page 593 of 1163
73
Page 594 of 1163
74
AUB_A1b_30968
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced flow changes during the monitoring period.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.62 0.32 0.029
Minimum 1.44 0.05 0.003
Maximum 5.65 1.57 0.214
Min Time 11/08/2020 10:00:00 PM 04/13/2021 12:00:00 AM 04/13/2021 12:00:00 AM
Max Time 03/01/2021 12:00:00 PM 11/13/2020 1:00:00 PM 11/13/2020 1:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIM E
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.827
VFINAL (ft/s) 99.827
QFINAL (MGD - Total MG) 99.827
Pipe Round (11.88 in H)
Silt 0.00 (in)
Page 595 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A1b_30968
Page 596 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A1b_30968
Page 597 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A1b_30968Pipe: Round (11.88 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 12:45 2.19 10:20 4.21 2.77 13:00 0.10 10:20 0.73 0.21 12:35 0.007 10:20 0.115 0.020 0.020 0.51
01/02/2021 12:40 2.23 08:55 3.62 2.73 07:35 0.09 06:30 0.61 0.23 00:00 0.010 05:00 0.059 0.020 0.020 1.69
01/03/2021 19:25 2.34 04:50 3.97 2.72 07:15 0.11 04:40 0.51 0.20 18:30 0.011 04:40 0.070 0.017 0.017 0.65
01/04/2021 05:00 2.31 07:50 4.51 2.95 06:00 0.10 08:00 1.15 0.30 03:15 0.011 08:00 0.183 0.032 0.032 0.48
01/05/2021 01:35 2.32 15:40 4.75 2.92 04:50 0.16 10:45 0.93 0.32 00:00 0.012 10:45 0.161 0.036 0.036 0.52
01/06/2021 23:50 2.37 15:25 4.95 2.87 06:15 0.16 15:25 1.05 0.28 22:20 0.012 15:25 0.206 0.029 0.029 0.22
01/07/2021 01:50 2.27 15:35 4.48 3.02 10:50 0.10 15:45 0.92 0.29 00:55 0.013 15:45 0.151 0.032 0.032 -
01/08/2021 04:35 2.36 14:50 4.17 2.93 02:40 0.09 16:50 0.98 0.27 02:40 0.010 16:50 0.109 0.026 0.026 0.22
01/09/2021 21:25 2.25 17:50 4.25 2.82 17:50 0.10 09:30 0.64 0.27 18:25 0.009 08:10 0.076 0.025 0.025 -
01/10/2021 00:55 2.26 04:50 3.20 2.74 15:40 0.08 18:10 0.95 0.21 15:40 0.008 18:10 0.093 0.019 0.019 0.07
01/11/2021 05:40 2.41 11:05 4.77 3.20 05:10 0.13 09:25 1.01 0.33 05:35 0.012 10:35 0.171 0.041 0.041 1.06
01/12/2021 00:00 2.72 10:20 4.59 3.12 08:00 0.15 10:20 1.98 0.33 00:00 0.015 10:20 0.351 0.039 0.039 2.10
01/13/2021 02:10 2.53 15:25 4.80 3.17 06:50 0.15 08:10 1.24 0.34 20:50 0.014 15:20 0.178 0.040 0.040 0.09
01/14/2021 03:00 2.51 15:35 5.02 3.13 04:10 0.14 15:35 0.94 0.33 17:50 0.014 15:35 0.187 0.040 0.040 0.01
01/15/2021 05:40 2.52 11:45 4.20 3.00 23:55 0.12 12:05 0.86 0.30 21:10 0.013 12:05 0.130 0.032 0.032 0.09
01/16/2021 07:30 2.76 07:20 4.26 3.17 00:00 0.13 17:25 0.70 0.35 00:00 0.013 07:20 0.098 0.038 0.038 -
01/17/2021 09:20 2.36 06:25 4.19 3.01 09:30 0.12 06:05 0.84 0.34 09:30 0.010 06:25 0.093 0.034 0.034 0.10
01/18/2021 22:10 2.25 14:30 4.55 3.03 07:00 0.11 16:15 1.93 0.33 21:50 0.010 16:15 0.301 0.037 0.037 -
01/19/2021 05:15 2.30 16:10 4.50 2.92 19:40 0.10 16:20 1.09 0.28 19:40 0.010 16:20 0.188 0.030 0.030 0.01
01/20/2021 03:25 2.21 12:35 4.54 2.92 04:05 0.10 12:20 0.91 0.29 04:05 0.009 12:30 0.159 0.030 0.030 -
01/21/2021 05:25 2.31 15:20 4.65 2.96 12:30 0.14 15:10 1.00 0.31 00:05 0.010 15:20 0.163 0.033 0.033 0.11
01/22/2021 19:20 2.48 13:30 4.57 3.20 02:00 0.15 13:35 0.90 0.29 15:15 0.014 13:35 0.158 0.033 0.033 -
01/23/2021 11:20 2.55 04:55 4.20 2.93 00:40 0.18 04:55 0.60 0.24 22:55 0.017 04:55 0.094 0.023 0.023 -
01/24/2021 20:30 2.62 08:15 4.00 2.87 14:35 0.14 14:25 0.71 0.23 10:55 0.017 08:20 0.078 0.021 0.021 0.16
01/25/2021 20:50 2.42 15:20 4.64 3.07 21:05 0.11 15:20 0.86 0.27 21:05 0.010 15:20 0.155 0.030 0.030 0.04
01/26/2021 19:55 2.28 13:10 4.47 2.93 00:55 0.12 13:20 0.89 0.27 23:45 0.009 13:10 0.148 0.028 0.028 -
01/27/2021 02:15 2.21 15:45 4.86 2.95 01:30 0.12 15:45 0.99 0.30 01:30 0.008 15:45 0.190 0.034 0.034 0.14
01/28/2021 02:05 2.31 15:00 4.91 3.06 18:45 0.11 15:25 1.40 0.32 23:25 0.010 15:25 0.243 0.039 0.039 0.24
01/29/2021 04:55 2.36 12:55 3.64 2.84 23:05 0.13 13:30 0.49 0.25 04:40 0.012 13:25 0.056 0.023 0.023 0.03
01/30/2021 18:20 2.26 10:55 3.68 2.67 01:25 0.10 10:45 1.03 0.23 12:00 0.009 10:45 0.113 0.019 0.019 0.07
01/31/2021 01:05 2.36 08:30 3.78 3.01 00:50 0.11 08:25 0.45 0.21 00:10 0.008 08:25 0.056 0.022 0.022 0.12
02/01/2021 07:05 2.52 15:35 4.72 3.16 04:20 0.12 16:00 1.23 0.28 21:45 0.013 16:00 0.216 0.032 0.032 0.82
02/02/2021 23:35 2.55 15:25 4.72 3.20 04:40 0.16 15:40 0.88 0.30 23:15 0.014 15:25 0.153 0.036 0.036 0.31
02/03/2021 02:10 2.46 14:00 4.73 3.17 22:10 0.13 14:10 2.13 0.32 03:15 0.013 14:10 0.392 0.038 0.038 0.06
02/04/2021 02:10 2.67 13:40 6.61 3.28 23:20 0.13 10:20 1.91 0.30 02:10 0.014 13:40 0.539 0.037 0.037 0.07
02/05/2021 23:25 2.44 06:25 4.18 2.97 18:15 0.12 06:25 0.59 0.24 23:15 0.011 06:25 0.092 0.024 0.024 0.01
02/06/2021 05:10 2.29 15:55 4.33 2.91 08:45 0.08 15:55 0.62 0.23 19:35 0.008 15:55 0.102 0.024 0.024 0.01
02/07/2021 22:15 2.36 08:10 3.53 2.47 07:00 0.12 19:40 0.51 0.18 19:55 0.008 07:50 0.056 0.014 0.014 -
02/08/2021 00:35 2.37 07:25 4.32 2.80 22:00 0.10 07:25 0.87 0.26 22:00 0.008 07:25 0.142 0.025 0.025 -
02/09/2021 01:15 2.36 07:10 4.57 3.06 06:50 0.11 09:35 0.95 0.28 00:15 0.010 07:10 0.137 0.032 0.032 -
02/10/2021 22:00 2.41 08:05 4.57 3.07 19:15 0.10 08:00 1.54 0.30 19:15 0.009 08:00 0.270 0.034 0.034 -
02/11/2021 23:55 2.41 07:45 4.96 3.31 09:55 0.09 14:05 0.85 0.31 21:30 0.011 14:05 0.142 0.037 0.037 -
02/12/2021 23:25 2.29 22:15 3.89 2.79 02:20 0.11 22:10 0.51 0.23 02:20 0.009 22:10 0.070 0.021 0.021 -
02/13/2021 16:35 2.21 13:20 3.66 2.44 15:45 0.11 20:35 0.54 0.18 15:45 0.007 13:20 0.062 0.013 0.013 0.08
02/14/2021 08:45 2.30 08:15 2.88 2.44 07:30 0.14 08:25 0.65 0.19 08:40 0.009 08:25 0.049 0.014 0.014 0.71
02/15/2021 19:40 2.36 12:05 4.66 2.93 08:20 0.11 12:15 0.91 0.29 19:55 0.014 12:15 0.156 0.031 0.031 0.78
02/16/2021 03:20 2.28 10:40 4.62 2.86 21:45 0.14 10:45 0.90 0.28 02:20 0.013 10:55 0.162 0.028 0.028 0.07
02/17/2021 20:45 2.27 04:20 5.14 2.97 01:30 0.12 10:15 0.99 0.29 18:55 0.009 04:20 0.177 0.031 0.031 -
02/18/2021 20:55 2.30 15:35 4.45 3.12 06:35 0.14 15:25 0.82 0.28 19:00 0.014 15:25 0.134 0.031 0.031 0.09
02/19/2021 23:15 2.23 15:55 4.13 2.83 22:20 0.09 15:50 0.56 0.23 23:15 0.008 15:50 0.084 0.021 0.021 0.17
02/20/2021 02:10 2.15 09:20 3.73 2.75 09:10 0.10 06:00 0.48 0.23 02:25 0.007 05:55 0.062 0.021 0.021 0.07
02/21/2021 18:20 2.17 08:10 4.12 2.69 19:40 0.10 07:10 0.47 0.22 19:40 0.006 07:10 0.062 0.019 0.019 0.42
02/22/2021 05:55 2.14 09:50 4.42 2.95 05:55 0.09 10:00 0.88 0.29 05:55 0.005 10:05 0.148 0.030 0.030 0.98
02/23/2021 03:25 2.25 13:45 4.64 2.98 09:10 0.11 13:40 0.91 0.29 03:20 0.008 13:45 0.162 0.031 0.031 0.27
02/24/2021 04:10 2.21 09:25 4.60 2.90 05:15 0.12 09:20 0.92 0.30 22:35 0.010 09:20 0.163 0.033 0.033 -
02/25/2021 23:35 2.24 14:05 4.50 2.75 23:30 0.12 14:00 1.15 0.26 23:30 0.008 14:00 0.198 0.026 0.026 0.18
02/26/2021 01:45 2.23 11:15 4.51 2.92 01:00 0.12 11:10 0.64 0.26 01:00 0.008 11:10 0.106 0.027 0.027 0.10
02/27/2021 03:20 2.17 20:05 4.93 3.35 08:25 0.11 20:05 0.81 0.26 00:30 0.012 20:05 0.159 0.032 0.032 0.02
02/28/2021 06:25 2.14 23:35 4.23 3.34 18:40 0.11 23:25 0.60 0.26 00:05 0.012 23:45 0.096 0.031 0.031 0.02
03/01/2021 03:30 2.23 08:30 6.06 3.98 04:40 0.13 15:15 1.11 0.47 03:55 0.013 08:25 0.257 0.081 0.081 -
03/02/2021 23:55 2.29 05:35 5.41 3.21 01:20 0.12 05:35 0.91 0.31 23:50 0.009 05:35 0.200 0.039 0.039 -
03/03/2021 04:30 2.12 12:45 5.15 2.73 07:50 0.12 12:45 0.80 0.26 00:00 0.009 12:45 0.165 0.026 0.026 -
03/04/2021 23:35 2.21 14:00 5.01 2.73 01:05 0.12 14:00 0.77 0.26 00:55 0.008 14:00 0.153 0.026 0.026 0.20
03/05/2021 02:10 2.11 08:05 3.74 2.78 02:10 0.08 17:45 0.56 0.26 02:10 0.005 21:45 0.065 0.024 0.024 0.05
03/06/2021 03:45 2.21 02:55 4.48 3.17 18:10 0.12 02:55 0.66 0.34 05:20 0.009 02:55 0.113 0.038 0.038 -
03/07/2021 10:25 2.08 05:25 4.18 2.97 10:25 0.07 05:25 0.59 0.21 10:25 0.004 05:25 0.092 0.022 0.022 0.04
03/08/2021 04:35 2.21 15:30 4.81 2.87 00:45 0.11 15:25 0.74 0.26 20:30 0.010 15:30 0.140 0.027 0.027 -
03/09/2021 04:05 2.21 14:25 4.86 2.74 07:05 0.08 14:15 0.76 0.27 04:05 0.007 14:25 0.144 0.027 0.027 0.01
03/10/2021 04:30 2.10 14:55 4.94 2.74 01:20 0.09 15:25 1.30 0.27 04:25 0.005 15:25 0.239 0.027 0.027 -
03/11/2021 02:05 2.08 15:10 5.32 2.76 23:50 0.11 17:20 0.97 0.29 20:35 0.010 15:10 0.200 0.028 0.028 -
Page 598 of 1163
78
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 20:15 2.09 10:40 3.97 2.81 20:15 0.08 04:55 0.67 0.26 20:15 0.004 04:55 0.066 0.024 0.024 -
03/13/2021 04:40 2.02 12:00 4.12 3.34 02:25 0.10 12:30 0.58 0.37 03:35 0.006 12:35 0.089 0.046 0.046 -
03/14/2021 16:05 2.11 03:20 3.89 2.66 23:00 0.09 14:55 0.54 0.27 10:30 0.006 03:25 0.075 0.028 0.028 0.30
03/15/2021 02:00 2.11 12:00 5.25 2.69 20:55 0.09 12:00 0.93 0.28 20:55 0.006 12:00 0.197 0.027 0.027 -
03/16/2021 00:35 2.08 09:05 5.17 2.78 00:45 0.08 09:20 1.43 0.29 00:45 0.004 09:20 0.283 0.031 0.031 -
03/17/2021 19:20 1.95 08:50 4.79 2.73 02:45 0.09 08:50 0.83 0.28 02:40 0.006 08:50 0.157 0.028 0.028 -
03/18/2021 00:45 2.09 10:10 4.81 2.74 00:45 0.08 12:10 0.84 0.29 00:40 0.005 11:05 0.149 0.029 0.029 0.11
03/19/2021 03:05 2.04 10:30 3.56 2.50 00:05 0.08 04:30 0.48 0.24 00:10 0.004 10:30 0.057 0.019 0.019 0.03
03/20/2021 04:30 2.01 10:40 3.68 2.55 09:10 0.11 08:50 0.45 0.22 01:20 0.009 08:50 0.056 0.018 0.018 0.17
03/21/2021 00:10 2.06 14:55 3.46 2.55 06:45 0.08 10:55 0.44 0.22 06:45 0.009 14:55 0.052 0.017 0.017 0.07
03/22/2021 18:50 2.10 06:50 4.91 2.67 18:50 0.08 07:00 0.84 0.27 18:45 0.005 06:50 0.162 0.026 0.026 0.11
03/23/2021 20:40 2.02 05:35 4.72 2.73 20:35 0.06 06:25 1.63 0.30 20:35 0.004 06:25 0.279 0.031 0.031 -
03/24/2021 20:55 2.07 14:10 4.75 2.91 01:25 0.10 07:15 2.21 0.33 01:25 0.006 07:15 0.281 0.036 0.036 0.34
03/25/2021 22:40 2.17 08:35 4.64 2.71 20:05 0.13 08:35 1.62 0.32 20:05 0.008 08:35 0.292 0.032 0.032 0.27
03/26/2021 03:10 2.09 13:20 4.44 2.83 01:05 0.08 08:45 1.27 0.28 01:05 0.005 08:45 0.136 0.026 0.026 -
03/27/2021 11:50 2.03 14:15 3.95 2.36 11:50 0.06 06:10 0.54 0.19 11:50 0.003 01:25 0.063 0.014 0.014 -
03/28/2021 02:15 2.02 14:45 4.57 3.66 02:15 0.06 21:30 0.66 0.38 02:15 0.003 18:40 0.112 0.056 0.056 0.37
03/29/2021 23:40 2.09 14:25 4.88 3.02 23:55 0.08 04:45 1.26 0.34 23:30 0.005 14:25 0.152 0.040 0.040 -
03/30/2021 00:25 2.04 14:30 4.65 2.67 03:20 0.09 14:35 0.68 0.28 02:30 0.006 14:30 0.119 0.025 0.025 -
03/31/2021 02:15 2.07 13:50 5.18 2.69 03:20 0.10 14:55 1.17 0.29 03:20 0.006 14:55 0.191 0.029 0.029 -
04/01/2021 03:35 2.06 15:05 4.76 2.83 10:00 0.08 15:05 0.91 0.27 00:00 0.006 15:05 0.169 0.027 0.027 -
04/02/2021 22:35 2.02 11:50 5.23 2.46 01:15 0.11 11:45 0.96 0.28 01:15 0.007 11:50 0.193 0.022 0.022 -
04/03/2021 06:30 1.84 13:25 3.96 2.17 05:50 0.05 20:30 0.62 0.29 05:50 0.003 13:25 0.079 0.019 0.019 -
04/04/2021 11:55 1.99 07:10 2.42 2.06 09:45 0.05 07:10 0.34 0.12 08:55 0.003 07:10 0.024 0.007 0.007 -
04/05/2021 00:50 2.02 05:40 4.46 2.44 00:45 0.06 14:45 0.76 0.23 00:45 0.003 14:45 0.130 0.020 0.020 -
04/06/2021 23:55 1.99 10:20 4.55 2.50 23:45 0.05 10:25 0.82 0.30 02:50 0.003 10:25 0.143 0.027 0.027 -
04/07/2021 19:40 1.84 10:25 4.75 2.57 00:05 0.05 13:45 0.93 0.30 00:05 0.003 10:25 0.163 0.027 0.027 0.22
04/08/2021 01:15 1.95 13:35 4.58 2.58 01:00 0.06 00:40 1.26 0.36 01:00 0.003 13:35 0.145 0.031 0.031 -
04/09/2021 15:50 1.91 16:15 4.67 2.49 22:35 0.05 16:15 0.70 0.28 22:35 0.003 16:15 0.127 0.023 0.023 0.03
04/10/2021 14:40 1.90 06:05 3.34 2.20 13:30 0.05 19:05 0.48 0.23 14:50 0.002 06:05 0.046 0.015 0.015 0.02
04/11/2021 09:30 1.89 08:10 3.28 2.41 09:00 0.05 08:10 0.54 0.21 08:45 0.003 08:10 0.061 0.016 0.016 -
04/12/2021 22:10 1.99 15:05 4.73 2.52 22:00 0.05 15:20 0.88 0.28 20:20 0.003 15:10 0.154 0.025 0.025 -
04/13/2021 00:35 1.99 14:20 5.04 2.54 00:10 0.05 14:25 1.05 0.34 00:00 0.003 14:25 0.209 0.031 0.031 -
04/14/2021 02:25 1.85 10:05 4.62 2.64 20:20 0.08 13:25 1.12 0.40 20:20 0.005 14:00 0.161 0.038 0.038 -
09/22/2020 11:00 1.65 12:30 3.74 2.28 23:05 0.10 12:40 1.03 0.40 23:15 0.006 12:35 0.136 0.031 0.020 -
09/23/2020 03:30 1.65 06:00 3.98 2.25 02:50 0.10 14:40 1.89 0.35 03:30 0.005 14:40 0.273 0.028 0.028 -
09/24/2020 21:55 1.48 11:50 4.33 2.11 20:20 0.08 11:55 1.16 0.33 19:30 0.004 11:55 0.188 0.025 0.025 -
09/25/2020 01:40 1.47 09:35 3.90 2.05 01:10 0.10 09:45 1.06 0.34 01:20 0.003 09:45 0.150 0.025 0.025 -
09/26/2020 22:45 1.65 14:00 3.10 2.05 02:45 0.09 13:30 0.76 0.30 02:45 0.005 14:00 0.075 0.019 0.019 -
09/27/2020 00:20 1.58 11:10 2.81 2.13 23:30 0.08 17:15 1.14 0.33 01:40 0.005 17:15 0.077 0.021 0.021 -
09/28/2020 09:30 1.82 14:20 4.02 2.29 02:20 0.08 14:25 1.05 0.32 02:20 0.005 14:20 0.155 0.024 0.024 -
09/29/2020 20:45 1.43 14:50 4.05 2.08 06:40 0.09 14:45 1.03 0.30 21:50 0.004 14:45 0.150 0.021 0.021 -
09/30/2020 05:15 1.52 12:30 3.84 2.15 00:55 0.10 12:20 1.05 0.32 00:55 0.004 12:25 0.141 0.023 0.023 -
10/01/2020 23:30 1.44 11:45 3.98 2.12 23:25 0.08 11:40 1.08 0.32 18:50 0.003 11:40 0.155 0.023 0.023 -
10/02/2020 03:40 1.44 09:00 4.03 2.13 03:35 0.08 09:05 1.03 0.30 03:30 0.003 09:00 0.149 0.022 0.022 -
10/03/2020 11:05 1.32 13:40 3.51 1.87 11:55 0.09 13:40 0.82 0.24 11:55 0.003 13:40 0.101 0.015 0.015 0.01
10/04/2020 07:30 1.55 07:00 3.61 1.93 07:30 0.13 07:00 0.85 0.28 07:30 0.005 07:00 0.109 0.015 0.015 0.01
10/05/2020 18:55 1.47 06:05 3.95 2.28 21:55 0.08 15:15 1.02 0.37 18:55 0.003 06:05 0.142 0.029 0.029 -
10/06/2020 02:40 1.58 14:35 3.81 2.17 16:25 0.08 09:45 1.18 0.31 02:40 0.005 14:35 0.144 0.022 0.022 -
10/07/2020 16:40 1.58 06:35 4.10 2.35 00:40 0.10 08:45 1.03 0.35 00:40 0.005 08:40 0.154 0.028 0.028 -
10/08/2020 19:15 1.45 09:05 3.88 2.07 03:30 0.09 14:40 1.26 0.33 19:10 0.003 09:05 0.149 0.023 0.023 -
10/09/2020 20:15 1.49 09:50 3.77 2.10 00:05 0.09 10:10 1.01 0.31 00:05 0.004 09:50 0.134 0.021 0.021 0.64
10/10/2020 18:45 1.41 17:20 2.68 1.82 18:35 0.08 11:15 1.15 0.22 18:35 0.003 11:15 0.056 0.011 0.011 1.04
10/11/2020 21:50 1.55 17:50 3.14 2.06 01:30 0.11 00:05 0.84 0.23 01:30 0.005 17:55 0.062 0.014 0.014 0.53
10/12/2020 00:10 1.55 06:20 4.02 2.35 19:55 0.08 06:20 1.03 0.36 00:10 0.005 06:25 0.153 0.030 0.030 -
10/13/2020 02:25 1.59 12:30 3.89 2.25 21:40 0.08 02:00 1.30 0.35 02:30 0.006 12:30 0.150 0.026 0.026 0.61
10/14/2020 13:10 1.64 10:15 4.13 2.31 01:00 0.13 15:40 2.80 0.40 23:55 0.007 15:40 0.372 0.033 0.033 -
10/15/2020 22:25 1.48 13:40 4.37 2.10 00:50 0.12 13:40 1.20 0.34 03:05 0.005 13:40 0.200 0.025 0.025 -
10/16/2020 04:15 1.54 10:20 3.75 2.07 14:05 0.09 10:25 0.96 0.31 01:00 0.006 10:25 0.128 0.020 0.020 -
10/17/2020 11:35 1.47 07:00 3.06 2.10 04:55 0.10 06:20 0.62 0.32 11:30 0.003 06:20 0.057 0.020 0.020 0.01
10/18/2020 22:20 1.47 08:35 2.75 1.84 08:50 0.09 08:35 0.58 0.25 00:00 0.004 08:35 0.051 0.013 0.013 0.03
10/19/2020 13:35 1.64 14:45 4.15 2.43 16:40 0.10 14:45 1.28 0.39 18:55 0.007 14:45 0.198 0.034 0.034 0.05
10/20/2020 22:35 1.67 10:05 4.13 2.72 01:30 0.07 03:10 0.89 0.41 21:40 0.005 10:05 0.137 0.040 0.040 -
10/21/2020 23:55 1.49 07:40 3.82 2.32 06:40 0.09 14:45 1.23 0.35 20:30 0.004 14:45 0.168 0.031 0.031 0.01
10/22/2020 01:30 1.46 14:00 3.82 2.04 01:25 0.09 14:00 1.05 0.30 01:25 0.003 14:00 0.145 0.021 0.021 -
10/23/2020 16:50 1.62 10:05 3.92 2.07 01:30 0.12 09:55 1.00 0.28 01:30 0.005 09:55 0.142 0.019 0.019 0.20
10/24/2020 17:15 1.59 14:45 3.12 2.06 15:10 0.09 14:45 0.70 0.27 20:20 0.005 14:45 0.073 0.016 0.016 0.02
10/25/2020 16:20 1.62 11:45 3.56 2.11 08:35 0.08 11:45 0.84 0.31 14:35 0.004 11:45 0.105 0.022 0.022 -
10/26/2020 16:55 1.68 06:45 4.00 2.31 01:20 0.11 06:45 1.06 0.32 01:45 0.006 06:45 0.157 0.025 0.025 -
10/27/2020 01:50 1.84 05:55 4.16 2.55 16:45 0.10 05:55 1.02 0.40 16:45 0.006 05:55 0.159 0.035 0.035 -
10/28/2020 22:55 1.60 08:45 4.09 2.48 01:20 0.12 08:40 1.03 0.35 23:45 0.005 08:45 0.155 0.030 0.030 -
10/29/2020 20:05 1.56 08:25 4.05 2.14 05:05 0.09 08:40 1.03 0.32 19:00 0.005 08:25 0.153 0.023 0.023 -
10/30/2020 18:15 1.52 05:45 4.05 2.23 21:50 0.08 05:45 1.07 0.33 17:00 0.005 05:45 0.161 0.025 0.025 0.10
10/31/2020 04:05 1.57 08:45 3.35 2.48 04:00 0.10 07:50 1.10 0.35 04:00 0.004 07:50 0.098 0.028 0.028 -
Page 599 of 1163
79
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 08:45 1.91 08:25 4.00 2.48 03:55 0.11 08:25 0.97 0.41 09:25 0.008 08:25 0.142 0.034 0.034 -
11/02/2020 23:15 1.58 07:30 4.24 2.29 04:10 0.09 07:30 1.18 0.37 21:40 0.005 07:30 0.188 0.030 0.030 -
11/03/2020 21:35 1.58 12:55 3.98 2.14 03:45 0.08 22:30 1.24 0.35 20:45 0.005 12:55 0.151 0.025 0.025 0.83
11/04/2020 01:15 1.56 14:50 3.94 2.33 23:40 0.11 21:55 1.13 0.32 00:00 0.005 15:10 0.143 0.024 0.024 0.09
11/05/2020 06:05 1.56 15:55 3.94 2.48 02:15 0.11 01:20 1.17 0.41 06:00 0.005 09:30 0.139 0.035 0.035 0.34
11/06/2020 23:30 1.67 15:00 4.38 2.20 00:40 0.12 01:55 1.32 0.28 20:10 0.006 15:00 0.178 0.019 0.019 0.10
11/07/2020 03:45 1.69 10:05 3.00 1.96 06:15 0.15 16:25 1.31 0.36 02:45 0.008 15:50 0.071 0.020 0.020 0.07
11/08/2020 15:45 1.41 08:25 2.95 1.78 22:45 0.07 10:00 0.63 0.22 22:45 0.002 10:00 0.059 0.012 0.012 0.01
11/09/2020 00:35 1.46 11:10 4.02 2.35 00:35 0.09 11:30 1.43 0.44 00:30 0.003 11:30 0.198 0.035 0.035 0.04
11/10/2020 17:55 1.63 12:05 4.51 2.32 08:55 0.15 12:05 1.21 0.45 17:45 0.007 12:05 0.210 0.036 0.036 0.03
11/11/2020 23:25 1.36 13:15 4.45 2.28 23:20 0.13 13:15 1.29 0.42 23:20 0.005 13:15 0.220 0.032 0.032 -
11/12/2020 01:20 1.41 14:10 4.92 2.43 01:15 0.12 16:35 1.83 0.43 01:15 0.005 15:25 0.259 0.034 0.034 0.16
11/13/2020 04:00 1.61 13:00 3.99 2.26 00:55 0.17 13:05 2.49 0.49 00:55 0.007 13:05 0.362 0.036 0.036 0.38
11/14/2020 20:10 1.61 04:45 3.25 2.12 19:30 0.09 17:15 1.03 0.36 19:30 0.004 04:45 0.081 0.023 0.023 0.47
11/15/2020 11:25 1.59 09:40 2.79 1.85 08:45 0.13 22:40 0.74 0.25 11:00 0.006 08:50 0.051 0.013 0.013 0.19
11/16/2020 10:55 1.73 07:10 4.02 2.34 04:50 0.08 16:30 1.89 0.47 04:50 0.007 07:10 0.273 0.039 0.039 0.31
11/17/2020 23:35 1.19 15:25 3.90 2.20 17:35 0.09 15:30 1.37 0.42 17:35 0.003 15:30 0.192 0.032 0.032 0.20
11/18/2020 07:05 1.43 15:00 4.00 2.18 07:10 0.09 05:20 1.79 0.43 07:00 0.003 15:10 0.176 0.031 0.031 0.30
11/19/2020 13:50 1.90 15:35 3.97 2.44 08:30 0.15 18:10 1.20 0.49 19:15 0.009 15:35 0.144 0.039 0.039 0.50
11/20/2020 00:35 1.45 12:45 3.75 2.39 00:35 0.08 12:50 0.89 0.38 00:35 0.003 12:45 0.116 0.029 0.029 0.01
11/21/2020 23:45 1.79 05:45 2.56 1.98 23:45 0.21 05:45 0.52 0.32 23:45 0.010 05:45 0.041 0.017 0.017 -
11/22/2020 14:30 1.73 08:50 3.17 1.89 07:25 0.21 17:15 1.71 0.35 01:40 0.010 17:15 0.088 0.018 0.018 0.21
11/23/2020 15:20 1.62 06:35 4.05 2.25 03:45 0.10 08:10 2.34 0.49 03:45 0.006 08:00 0.202 0.036 0.036 0.14
11/24/2020 19:40 1.60 12:25 4.16 2.24 06:05 0.14 14:45 1.24 0.43 19:35 0.006 12:20 0.152 0.031 0.031 0.21
11/25/2020 04:35 1.67 15:10 3.90 2.30 06:55 0.13 07:50 0.96 0.38 04:35 0.007 07:50 0.135 0.030 0.030 0.05
11/26/2020 01:15 1.80 07:15 2.88 2.04 08:15 0.13 07:05 0.62 0.33 08:15 0.008 07:15 0.058 0.019 0.019 0.02
11/27/2020 15:55 1.49 12:30 3.72 2.20 15:55 0.10 12:25 1.49 0.38 15:55 0.004 12:25 0.153 0.025 0.025 -
11/28/2020 07:40 1.29 06:05 3.28 2.42 15:30 0.17 06:05 0.75 0.45 15:30 0.007 06:05 0.084 0.034 0.034 0.05
11/29/2020 04:35 1.59 09:00 3.37 2.23 04:35 0.14 09:00 0.78 0.40 04:35 0.006 09:00 0.090 0.028 0.028 -
11/30/2020 14:15 1.70 07:20 3.85 2.34 09:45 0.15 07:30 1.41 0.46 14:15 0.008 07:30 0.190 0.036 0.036 0.36
12/01/2020 18:15 1.88 12:20 4.09 2.60 09:05 0.21 06:40 1.33 0.56 12:05 0.012 12:20 0.156 0.048 0.048 -
12/02/2020 03:45 1.69 10:30 4.24 2.41 18:45 0.09 10:45 1.14 0.44 18:45 0.005 10:45 0.176 0.037 0.037 0.01
12/03/2020 02:35 1.64 10:45 4.19 2.31 03:15 0.13 22:40 1.26 0.45 02:35 0.007 10:45 0.150 0.034 0.034 -
12/04/2020 01:10 1.78 13:00 4.07 2.39 04:40 0.11 08:50 1.08 0.43 04:40 0.008 13:00 0.147 0.033 0.033 -
12/05/2020 18:30 1.56 10:15 3.70 2.18 08:45 0.11 10:15 0.88 0.35 18:30 0.005 10:15 0.116 0.024 0.024 0.03
12/06/2020 00:00 1.80 08:15 3.19 2.00 06:55 0.09 08:20 0.69 0.30 06:35 0.008 08:20 0.071 0.018 0.018 0.03
12/07/2020 19:00 1.76 06:45 4.16 2.63 08:10 0.11 12:05 1.60 0.50 18:20 0.010 12:55 0.162 0.046 0.046 -
12/08/2020 06:25 1.94 15:40 4.57 2.69 23:15 0.12 15:55 1.63 0.57 14:15 0.011 15:55 0.264 0.052 0.052 0.87
12/09/2020 04:10 1.73 14:20 4.08 2.37 06:05 0.14 02:20 1.34 0.46 06:05 0.007 14:25 0.171 0.037 0.037 0.17
12/10/2020 23:15 1.83 12:20 4.18 2.39 06:10 0.10 12:25 2.04 0.47 06:10 0.010 12:25 0.314 0.038 0.038 0.07
12/11/2020 04:00 1.73 02:35 3.34 2.14 02:55 0.11 12:50 1.20 0.49 04:55 0.006 02:35 0.088 0.030 0.030 0.02
12/12/2020 15:40 1.78 04:40 3.19 2.28 20:40 0.10 16:00 1.66 0.39 04:47 0.007 16:00 0.145 0.028 0.028 0.01
12/13/2020 06:40 2.18 02:40 2.93 2.37 23:50 0.17 06:15 1.00 0.42 23:50 0.013 06:15 0.085 0.030 0.030 0.24
12/14/2020 19:40 2.25 04:50 4.72 3.17 23:00 0.10 15:35 0.92 0.35 01:10 0.010 15:35 0.168 0.043 0.043 0.05
12/15/2020 06:15 2.20 13:35 4.59 2.95 01:35 0.09 13:40 1.12 0.30 06:20 0.010 13:40 0.197 0.033 0.033 0.58
12/16/2020 03:00 2.05 13:10 4.59 3.37 03:00 0.07 07:30 1.31 0.31 02:55 0.004 07:30 0.195 0.038 0.038 0.39
12/17/2020 01:10 2.07 07:10 4.77 3.11 01:05 0.08 07:10 1.01 0.33 01:05 0.004 07:10 0.188 0.040 0.040 0.08
12/18/2020 22:50 2.01 18:35 4.61 2.99 22:50 0.05 07:45 0.90 0.30 22:45 0.003 07:45 0.152 0.033 0.033 0.25
12/19/2020 05:20 2.13 08:40 4.48 3.12 11:40 0.08 08:40 0.94 0.29 05:20 0.005 08:40 0.161 0.032 0.032 0.37
12/20/2020 07:05 2.55 08:25 4.46 3.10 08:05 0.08 08:25 0.66 0.30 00:00 0.009 08:25 0.112 0.033 0.033 0.04
12/21/2020 19:40 2.44 07:50 4.68 3.21 00:00 0.12 06:45 1.09 0.31 00:00 0.010 08:40 0.161 0.038 0.038 1.07
12/22/2020 19:15 2.40 15:45 5.12 3.35 04:35 0.12 15:45 1.10 0.33 18:45 0.011 15:45 0.226 0.043 0.043 -
12/23/2020 20:55 2.22 05:25 4.68 3.00 04:35 0.09 13:05 0.90 0.27 20:55 0.007 13:15 0.156 0.030 0.030 -
12/24/2020 22:00 2.10 15:20 3.87 2.70 03:00 0.08 15:50 0.71 0.25 21:50 0.005 15:20 0.073 0.022 0.022 -
12/25/2020 02:20 1.97 21:50 4.22 2.52 02:00 0.06 22:05 0.57 0.20 02:00 0.003 22:05 0.085 0.021 0.021 0.49
12/26/2020 18:00 2.97 06:45 5.08 4.01 09:45 0.07 06:45 0.84 0.46 09:45 0.009 06:45 0.171 0.071 0.071 0.02
12/27/2020 15:55 2.14 09:00 5.03 3.09 12:30 0.09 09:00 0.83 0.32 15:55 0.005 09:00 0.167 0.041 0.041 0.13
12/28/2020 05:25 2.15 07:05 4.44 2.95 04:40 0.11 06:55 0.90 0.30 22:45 0.008 07:05 0.152 0.032 0.032 -
12/29/2020 06:10 2.23 09:40 4.55 3.16 04:15 0.10 09:00 1.15 0.33 03:40 0.009 09:00 0.164 0.038 0.038 0.14
12/30/2020 20:05 2.30 03:25 4.62 3.19 04:50 0.08 08:55 1.52 0.33 18:55 0.009 06:55 0.255 0.040 0.040 0.78
12/31/2020 19:35 2.21 08:10 4.47 2.97 19:25 0.11 08:20 0.90 0.30 19:25 0.007 08:20 0.154 0.032 0.032 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 5.885 30.65
Average 2.62 0.32 0.029
Page 600 of 1163
80
Page 601 of 1163
81
AUB_A1c_30906
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 7.27 0.67 0.234
Minimum 5.45 0.31 0.064
Maximum 9.70 1.04 0.555
Min Time 10/01/2020 2:00:00 AM 10/19/2020 2:00:00 AM 10/09/2020 2:00:00 AM
Max Time 01/02/2021 9:00:00 PM 01/02/2021 9:00:00 PM 01/02/2021 9:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.334
VFINAL (ft/s) 99.324
QFINAL (MGD - Total MG) 99.324
Pipe Round (18 in H)
Silt 2.50 (in)
Page 602 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A1c_30906
Page 603 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A1c_30906
Page 604 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A1c_30906Pipe: Round (18 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 05:10 6.23 15:40 8.53 7.36 07:55 0.44 15:35 0.87 0.67 06:05 0.115 15:40 0.382 0.238 0.238 0.51
01/02/2021 04:15 6.08 21:15 9.98 7.94 04:10 0.42 21:05 1.07 0.77 04:15 0.103 21:10 0.593 0.317 0.317 1.69
01/03/2021 04:55 7.00 00:00 9.77 8.17 04:35 0.60 00:05 1.05 0.80 04:45 0.189 00:00 0.560 0.332 0.332 0.65
01/04/2021 03:40 6.70 10:35 8.78 7.84 03:20 0.55 10:35 0.89 0.74 03:25 0.160 10:35 0.405 0.288 0.288 0.48
01/05/2021 03:20 6.52 13:40 9.20 7.76 02:55 0.51 13:40 1.00 0.73 03:25 0.140 13:40 0.489 0.280 0.280 0.52
01/06/2021 05:00 6.80 17:35 8.60 7.76 05:00 0.54 17:30 0.89 0.74 05:00 0.161 17:35 0.394 0.280 0.280 0.22
01/07/2021 04:05 6.47 16:00 8.48 7.60 03:05 0.49 16:00 0.87 0.71 03:05 0.136 16:00 0.375 0.262 0.262 -
01/08/2021 04:10 6.31 17:40 8.59 7.57 01:40 0.47 13:30 0.86 0.70 04:15 0.123 17:45 0.378 0.257 0.257 0.22
01/09/2021 03:55 6.42 14:10 8.62 7.60 03:40 0.49 14:00 0.90 0.71 03:55 0.132 13:55 0.396 0.265 0.265 -
01/10/2021 05:25 6.32 12:00 8.40 7.50 02:20 0.45 10:45 0.85 0.70 05:25 0.119 10:45 0.355 0.253 0.253 0.07
01/11/2021 03:30 6.10 15:00 8.80 7.74 03:25 0.41 11:10 0.92 0.74 03:25 0.102 11:10 0.422 0.286 0.286 1.06
01/12/2021 01:15 7.40 19:00 9.37 8.46 00:05 0.68 18:55 1.00 0.86 00:05 0.236 19:00 0.506 0.375 0.375 2.10
01/13/2021 04:45 6.90 00:35 8.76 7.98 03:45 0.59 00:35 0.92 0.79 04:40 0.181 00:35 0.419 0.313 0.313 0.09
01/14/2021 04:10 6.66 12:55 8.91 7.82 03:10 0.53 12:55 1.00 0.76 03:15 0.155 12:55 0.466 0.294 0.294 0.01
01/15/2021 04:20 6.63 17:15 8.54 7.79 03:10 0.51 17:15 0.92 0.77 03:10 0.149 17:15 0.401 0.297 0.297 0.09
01/16/2021 03:55 6.55 12:00 8.87 7.80 03:30 0.52 12:00 0.97 0.78 04:50 0.148 12:00 0.449 0.303 0.303 -
01/17/2021 05:00 6.52 11:10 8.86 7.72 05:00 0.55 11:10 0.98 0.78 05:00 0.152 11:10 0.456 0.295 0.295 0.10
01/18/2021 03:25 6.42 13:05 8.79 7.70 03:25 0.52 13:25 1.02 0.78 03:25 0.140 13:25 0.446 0.295 0.295 -
01/19/2021 03:15 6.49 18:50 8.46 7.62 01:20 0.54 18:50 0.91 0.76 03:20 0.151 18:50 0.391 0.279 0.279 0.01
01/20/2021 03:35 6.38 18:15 8.25 7.57 03:30 0.52 15:30 0.91 0.76 03:30 0.139 15:30 0.378 0.277 0.277 -
01/21/2021 03:40 6.31 18:05 8.77 7.55 03:30 0.48 18:00 0.95 0.75 03:30 0.126 18:05 0.434 0.274 0.274 0.11
01/22/2021 04:10 6.27 18:30 8.39 7.52 01:45 0.50 18:30 0.88 0.74 04:00 0.129 18:30 0.374 0.268 0.268 -
01/23/2021 03:35 6.22 12:30 9.37 7.54 05:45 0.44 12:30 1.06 0.74 05:45 0.112 12:30 0.535 0.272 0.272 -
01/24/2021 05:00 6.13 11:00 8.36 7.48 04:45 0.49 14:30 0.93 0.73 04:45 0.122 14:30 0.375 0.263 0.263 0.16
01/25/2021 03:40 6.13 17:50 8.51 7.46 03:30 0.47 17:45 0.91 0.73 03:30 0.118 17:50 0.395 0.262 0.262 0.04
01/26/2021 03:05 6.09 18:15 8.48 7.42 02:30 0.43 18:05 0.90 0.73 03:05 0.110 18:10 0.391 0.259 0.259 -
01/27/2021 03:35 6.10 17:45 8.23 7.39 03:15 0.46 17:45 0.89 0.72 03:35 0.112 17:45 0.367 0.254 0.254 0.14
01/28/2021 04:05 6.22 09:50 8.32 7.47 02:45 0.43 09:45 0.88 0.73 02:45 0.113 09:50 0.369 0.261 0.261 0.24
01/29/2021 03:05 6.12 11:10 8.29 7.43 04:05 0.45 11:10 0.88 0.72 04:05 0.113 11:10 0.369 0.257 0.257 0.03
01/30/2021 05:15 6.13 13:30 8.47 7.46 04:00 0.47 11:40 0.89 0.72 05:10 0.117 12:35 0.381 0.262 0.262 0.07
01/31/2021 04:55 6.09 10:40 8.36 7.44 05:45 0.47 18:00 0.89 0.72 05:50 0.118 10:55 0.370 0.258 0.258 0.12
02/01/2021 03:05 6.36 18:55 8.49 7.57 03:05 0.51 14:25 0.89 0.74 03:05 0.134 18:55 0.387 0.273 0.273 0.82
02/02/2021 03:25 6.32 20:15 8.78 7.65 03:15 0.51 20:10 0.92 0.75 03:25 0.136 20:10 0.422 0.281 0.281 0.31
02/03/2021 03:40 6.39 13:55 8.27 7.54 03:35 0.51 13:55 0.86 0.73 03:35 0.137 13:55 0.359 0.266 0.266 0.06
02/04/2021 03:35 6.12 17:10 9.07 7.41 02:20 0.45 17:05 0.95 0.70 03:35 0.114 17:10 0.459 0.250 0.250 0.07
02/05/2021 03:45 6.15 10:50 8.35 7.40 03:25 0.46 10:45 0.87 0.70 03:30 0.116 10:50 0.369 0.248 0.248 0.01
02/06/2021 06:00 6.20 12:45 9.01 7.44 05:45 0.46 12:45 0.95 0.71 05:45 0.118 12:45 0.451 0.256 0.256 0.01
02/07/2021 05:35 5.94 10:10 8.56 7.35 03:05 0.44 10:05 0.91 0.70 04:15 0.105 10:10 0.398 0.247 0.247 -
02/08/2021 03:55 6.01 15:55 8.17 7.36 03:45 0.43 18:25 0.91 0.70 03:55 0.103 18:25 0.365 0.246 0.246 -
02/09/2021 03:15 5.95 12:25 8.15 7.28 04:20 0.44 18:25 0.84 0.68 04:20 0.104 18:25 0.337 0.236 0.236 -
02/10/2021 04:05 5.92 12:10 8.11 7.27 04:00 0.42 11:25 0.84 0.68 04:00 0.098 12:10 0.337 0.237 0.237 -
02/11/2021 03:15 5.89 12:15 8.16 7.32 02:55 0.43 12:15 0.84 0.68 03:20 0.098 12:15 0.341 0.238 0.238 -
02/12/2021 04:30 5.98 12:55 8.69 7.30 02:35 0.43 13:05 0.88 0.68 03:25 0.102 12:55 0.388 0.237 0.237 -
02/13/2021 04:30 6.11 13:15 8.43 7.28 05:35 0.45 13:10 0.87 0.68 05:35 0.110 13:15 0.374 0.235 0.235 0.08
02/14/2021 05:20 5.94 11:40 8.34 7.42 04:55 0.40 11:35 0.88 0.69 04:55 0.097 11:40 0.369 0.249 0.249 0.71
02/15/2021 02:35 6.73 13:45 9.08 7.89 06:00 0.52 13:40 0.98 0.77 06:10 0.157 13:45 0.469 0.305 0.305 0.78
02/16/2021 03:35 6.52 17:05 8.40 7.58 01:50 0.55 15:45 0.90 0.73 03:15 0.158 17:05 0.371 0.267 0.267 0.07
02/17/2021 03:55 6.16 16:00 8.40 7.48 06:35 0.49 20:00 0.91 0.71 03:55 0.129 16:00 0.373 0.257 0.257 -
02/18/2021 04:20 6.21 17:30 8.57 7.44 02:35 0.45 17:20 0.89 0.71 02:35 0.116 17:30 0.386 0.252 0.252 0.09
02/19/2021 02:55 6.18 12:05 9.76 7.47 03:20 0.46 12:00 1.08 0.71 03:20 0.123 12:05 0.580 0.257 0.257 0.17
02/20/2021 04:35 6.06 12:00 8.56 7.40 04:30 0.50 13:05 0.93 0.72 04:35 0.121 13:05 0.406 0.256 0.256 0.07
02/21/2021 05:30 5.95 13:35 8.20 7.37 07:00 0.46 13:35 0.89 0.71 07:00 0.111 13:35 0.364 0.252 0.252 0.42
02/22/2021 04:30 6.32 12:30 8.78 7.60 03:20 0.51 13:00 0.94 0.74 03:20 0.135 13:00 0.426 0.273 0.273 0.98
02/23/2021 03:35 6.21 14:35 10.04 7.51 02:05 0.47 14:40 0.93 0.73 02:05 0.129 14:40 0.507 0.267 0.267 0.27
02/24/2021 02:30 6.27 20:00 8.20 7.49 02:00 0.49 19:55 0.88 0.74 04:50 0.136 19:55 0.360 0.265 0.265 -
02/25/2021 03:15 6.18 20:25 8.26 7.49 03:10 0.52 11:55 0.90 0.74 03:15 0.130 12:05 0.363 0.268 0.268 0.18
02/26/2021 03:45 6.24 10:55 8.44 7.54 03:45 0.53 17:45 0.90 0.75 03:45 0.135 10:55 0.378 0.273 0.273 0.10
02/27/2021 03:20 6.17 15:00 9.22 7.47 02:35 0.49 14:55 0.98 0.73 02:35 0.130 14:55 0.483 0.265 0.265 0.02
02/28/2021 05:35 6.04 12:55 8.68 7.42 02:20 0.46 12:50 0.95 0.73 04:05 0.122 12:50 0.424 0.261 0.261 0.02
03/01/2021 03:35 6.02 12:55 8.24 7.41 01:50 0.47 17:05 0.89 0.72 03:35 0.116 17:05 0.359 0.256 0.255 -
03/02/2021 04:05 6.04 17:55 8.26 7.39 02:15 0.46 13:50 0.88 0.71 02:15 0.120 13:50 0.362 0.252 0.252 -
03/03/2021 03:50 5.94 17:25 8.22 7.37 04:00 0.47 12:15 0.88 0.70 04:00 0.112 12:15 0.361 0.247 0.247 -
03/04/2021 03:25 6.01 18:00 8.22 7.33 03:25 0.47 17:25 0.87 0.70 03:25 0.113 18:05 0.346 0.243 0.243 0.20
03/05/2021 03:50 5.94 16:00 8.17 7.30 03:10 0.43 12:00 0.86 0.69 03:15 0.105 12:00 0.348 0.239 0.239 0.05
03/06/2021 05:25 5.97 15:55 8.57 7.36 03:35 0.47 11:40 0.89 0.71 05:25 0.109 12:40 0.375 0.250 0.250 -
03/07/2021 04:25 5.95 12:20 8.28 7.30 05:15 0.42 11:05 0.87 0.69 05:20 0.102 11:05 0.357 0.242 0.242 0.04
03/08/2021 03:40 5.96 17:15 8.22 7.29 03:20 0.46 16:50 0.85 0.70 03:45 0.108 17:15 0.352 0.243 0.243 -
03/09/2021 02:45 5.93 18:00 8.09 7.26 02:40 0.46 12:45 0.84 0.69 02:45 0.106 17:55 0.327 0.236 0.236 0.01
03/10/2021 02:55 5.88 19:20 8.15 7.29 02:35 0.44 19:20 0.85 0.69 02:50 0.102 19:20 0.344 0.238 0.238 -
03/11/2021 04:05 5.84 17:30 8.24 7.23 02:40 0.43 17:30 0.86 0.68 04:05 0.097 17:30 0.354 0.231 0.231 -
Page 605 of 1163
85
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 03:05 5.87 12:15 8.07 7.19 05:20 0.43 12:00 0.82 0.67 03:05 0.103 12:15 0.326 0.228 0.228 -
03/13/2021 04:40 5.81 10:50 8.39 7.25 05:50 0.39 09:25 0.90 0.68 05:50 0.089 11:55 0.369 0.236 0.236 -
03/14/2021 06:10 5.88 15:10 8.32 7.28 04:35 0.46 20:15 0.84 0.69 04:35 0.106 15:10 0.347 0.239 0.239 0.30
03/15/2021 02:55 6.11 20:35 8.11 7.31 02:35 0.45 10:15 0.82 0.69 02:35 0.114 20:35 0.330 0.240 0.240 -
03/16/2021 02:35 5.89 19:25 8.04 7.18 02:30 0.41 19:15 0.85 0.66 02:30 0.095 19:20 0.332 0.223 0.223 -
03/17/2021 02:05 5.80 10:25 8.32 7.21 03:20 0.46 16:25 0.88 0.67 02:05 0.105 10:25 0.361 0.229 0.229 -
03/18/2021 02:50 5.82 16:10 8.17 7.19 02:00 0.45 12:00 0.84 0.67 02:30 0.100 12:00 0.341 0.228 0.228 0.11
03/19/2021 03:15 5.84 10:50 8.10 7.23 01:35 0.40 11:05 0.85 0.68 01:35 0.095 10:45 0.338 0.233 0.233 0.03
03/20/2021 04:10 5.75 11:20 8.41 7.23 04:00 0.41 09:50 0.85 0.67 04:00 0.090 09:55 0.351 0.232 0.232 0.17
03/21/2021 03:20 5.72 15:05 8.19 7.15 03:05 0.45 09:15 0.85 0.67 05:15 0.098 11:35 0.336 0.227 0.227 0.07
03/22/2021 02:40 5.78 11:20 8.08 7.20 02:35 0.38 11:15 0.81 0.66 02:35 0.085 11:20 0.325 0.224 0.224 0.11
03/23/2021 01:45 5.74 11:15 8.06 7.16 01:40 0.47 13:10 0.81 0.68 01:40 0.103 11:15 0.319 0.227 0.227 -
03/24/2021 02:15 5.91 11:15 8.52 7.27 03:00 0.40 11:15 0.90 0.69 03:00 0.097 11:15 0.394 0.238 0.238 0.34
03/25/2021 03:15 6.07 15:10 8.32 7.35 03:15 0.49 15:05 0.83 0.69 03:20 0.118 15:10 0.350 0.240 0.240 0.27
03/26/2021 02:15 5.98 16:50 8.35 7.34 03:35 0.47 11:50 0.85 0.70 03:35 0.115 16:45 0.353 0.245 0.245 -
03/27/2021 04:35 5.90 11:10 8.51 7.34 04:30 0.46 11:10 0.89 0.71 04:30 0.106 11:10 0.387 0.249 0.249 -
03/28/2021 04:45 5.99 13:00 8.47 7.37 01:50 0.43 16:35 0.90 0.71 01:50 0.110 12:55 0.374 0.252 0.252 0.37
03/29/2021 02:05 6.02 12:55 8.10 7.30 03:15 0.48 12:25 0.83 0.70 03:25 0.117 12:25 0.329 0.241 0.241 -
03/30/2021 03:10 5.86 19:20 8.19 7.18 01:30 0.43 15:50 0.84 0.67 01:35 0.100 15:55 0.332 0.226 0.226 -
03/31/2021 01:25 5.67 13:50 8.02 7.19 01:15 0.44 12:00 0.82 0.68 03:10 0.098 19:40 0.321 0.228 0.228 -
04/01/2021 02:45 5.78 16:10 7.97 7.20 02:20 0.46 09:55 0.83 0.67 02:40 0.102 15:45 0.310 0.228 0.228 -
04/02/2021 02:35 5.75 09:55 8.08 7.17 02:05 0.41 09:30 0.82 0.66 02:05 0.092 09:55 0.329 0.224 0.224 -
04/03/2021 03:45 5.64 11:05 8.45 7.19 01:55 0.37 11:05 0.89 0.65 01:55 0.082 11:05 0.385 0.226 0.226 -
04/04/2021 03:55 5.62 11:05 8.71 7.11 03:55 0.37 11:50 0.88 0.64 03:55 0.077 11:55 0.388 0.217 0.217 -
04/05/2021 02:05 5.78 11:45 8.22 7.19 00:05 0.42 11:45 0.86 0.67 02:00 0.092 11:45 0.355 0.227 0.226 -
04/06/2021 02:00 5.72 20:20 7.95 7.16 01:00 0.36 09:20 0.80 0.64 02:00 0.078 20:40 0.308 0.217 0.217 -
04/07/2021 02:40 5.68 12:45 8.06 7.11 02:50 0.35 12:45 0.83 0.64 02:55 0.074 12:45 0.330 0.215 0.215 0.22
04/08/2021 02:10 5.66 13:25 7.99 7.14 03:35 0.35 15:10 0.83 0.65 03:40 0.075 13:30 0.318 0.219 0.219 -
04/09/2021 03:05 5.73 16:20 8.16 7.16 02:00 0.40 16:15 0.84 0.67 03:15 0.091 16:15 0.342 0.225 0.225 0.03
04/10/2021 04:25 5.67 10:25 8.58 7.15 02:20 0.39 10:25 0.89 0.66 02:25 0.087 10:25 0.392 0.225 0.225 0.02
04/11/2021 04:30 5.61 10:20 8.33 7.13 02:10 0.38 10:20 0.85 0.65 04:30 0.080 10:20 0.356 0.220 0.220 -
04/12/2021 03:00 5.73 20:10 8.31 7.15 01:35 0.41 20:00 0.84 0.66 03:15 0.090 20:10 0.354 0.222 0.222 -
04/13/2021 02:40 5.62 11:40 7.94 7.11 02:00 0.39 18:25 0.81 0.65 02:45 0.080 18:30 0.315 0.218 0.218 -
04/14/2021 03:00 5.66 12:40 7.99 7.16 02:50 0.40 15:40 0.84 0.67 02:55 0.085 15:40 0.321 0.225 0.225 -
09/23/2020 23:40 6.25 16:50 8.47 7.68 23:40 0.48 16:50 0.85 0.74 23:40 0.124 16:55 0.369 0.274 0.185 -
09/24/2020 02:15 5.84 19:35 7.86 7.06 02:15 0.39 19:15 0.79 0.63 02:15 0.088 19:40 0.300 0.207 0.207 -
09/25/2020 03:50 5.54 12:10 8.56 7.11 03:40 0.35 12:05 0.86 0.64 03:40 0.073 12:10 0.380 0.216 0.216 -
09/26/2020 03:45 5.60 11:15 8.29 7.07 03:50 0.33 11:10 0.86 0.63 03:50 0.068 11:15 0.353 0.211 0.211 -
09/27/2020 04:10 5.33 11:20 8.22 7.03 04:00 0.31 10:25 0.82 0.62 04:00 0.059 11:15 0.338 0.207 0.207 -
09/28/2020 02:40 5.38 19:00 7.95 6.92 02:35 0.32 10:40 0.78 0.61 02:35 0.062 10:40 0.293 0.195 0.195 -
09/29/2020 03:15 5.43 13:15 8.06 6.95 02:00 0.34 17:25 0.79 0.63 02:00 0.068 13:15 0.308 0.202 0.202 -
09/30/2020 03:15 5.31 11:10 8.63 7.01 01:35 0.33 11:05 0.91 0.64 03:10 0.062 11:10 0.404 0.210 0.210 -
10/01/2020 03:05 5.34 11:10 7.91 6.96 02:25 0.33 19:05 0.80 0.63 02:35 0.062 11:10 0.301 0.204 0.204 -
10/02/2020 03:05 5.35 20:10 7.78 6.98 02:40 0.31 12:45 0.80 0.64 02:45 0.059 12:55 0.295 0.207 0.207 -
10/03/2020 03:00 5.43 11:45 8.32 6.99 02:55 0.34 11:40 0.84 0.62 03:00 0.066 11:40 0.351 0.204 0.204 0.01
10/04/2020 03:40 5.39 12:50 8.13 7.02 02:10 0.33 13:55 0.82 0.63 03:40 0.064 14:05 0.331 0.209 0.209 0.01
10/05/2020 02:30 5.50 11:05 7.75 6.98 02:15 0.35 13:40 0.78 0.63 02:20 0.071 10:05 0.287 0.203 0.203 -
10/06/2020 02:40 5.40 16:00 8.09 6.95 02:25 0.32 15:55 0.77 0.59 02:25 0.062 19:15 0.309 0.192 0.192 -
10/07/2020 02:10 5.43 19:25 8.01 6.99 02:05 0.30 10:35 0.75 0.58 02:05 0.059 19:20 0.293 0.188 0.188 -
10/08/2020 01:40 5.45 10:15 7.98 6.92 01:40 0.30 10:20 0.77 0.56 01:40 0.059 10:20 0.301 0.181 0.181 -
10/09/2020 04:15 5.44 23:25 8.05 7.04 02:15 0.28 09:50 0.74 0.58 02:10 0.057 23:20 0.293 0.194 0.194 0.64
10/10/2020 04:40 6.14 12:30 8.27 7.34 04:35 0.44 10:35 0.80 0.63 04:40 0.110 10:35 0.330 0.220 0.220 1.04
10/11/2020 03:00 5.47 13:20 8.29 7.16 05:00 0.29 09:40 0.79 0.61 03:05 0.061 13:20 0.325 0.211 0.211 0.53
10/12/2020 02:35 5.48 18:40 8.00 7.01 02:25 0.31 19:10 0.81 0.61 02:25 0.061 19:10 0.314 0.199 0.199 -
10/13/2020 02:55 5.63 19:05 7.98 7.15 02:00 0.37 19:00 0.80 0.65 02:00 0.078 19:00 0.311 0.220 0.220 0.61
10/14/2020 03:10 5.56 15:50 7.93 7.04 01:20 0.36 12:45 0.78 0.63 02:35 0.075 14:20 0.303 0.209 0.209 -
10/15/2020 02:35 5.72 09:55 8.95 7.06 02:25 0.39 09:55 0.90 0.63 02:30 0.084 09:55 0.425 0.209 0.209 -
10/16/2020 02:55 5.45 12:45 7.96 6.98 02:55 0.33 13:00 0.82 0.63 02:55 0.064 13:00 0.313 0.203 0.203 -
10/17/2020 04:00 5.38 10:55 8.35 7.02 02:50 0.33 10:40 0.87 0.63 02:55 0.065 10:40 0.362 0.208 0.208 0.01
10/18/2020 03:50 5.38 11:45 8.32 7.06 06:40 0.31 11:45 0.86 0.63 03:35 0.068 11:55 0.362 0.211 0.211 0.03
10/19/2020 02:55 5.46 11:10 8.14 7.06 02:55 0.27 18:15 0.80 0.59 02:55 0.053 18:15 0.309 0.198 0.198 0.05
10/20/2020 04:05 5.55 18:35 7.80 7.01 03:15 0.36 11:30 0.77 0.64 03:15 0.073 18:30 0.291 0.207 0.207 -
10/21/2020 03:55 5.55 10:50 8.07 7.01 02:30 0.35 10:45 0.80 0.62 02:30 0.074 10:50 0.322 0.204 0.204 0.01
10/22/2020 03:15 5.36 12:05 7.88 7.01 02:05 0.34 12:00 0.78 0.62 03:10 0.065 12:00 0.296 0.205 0.205 -
10/23/2020 02:50 5.45 11:25 8.32 7.07 02:45 0.34 11:25 0.87 0.64 02:45 0.066 11:25 0.364 0.212 0.212 0.20
10/24/2020 06:50 5.83 11:00 8.28 7.13 02:40 0.40 11:00 0.85 0.65 02:40 0.092 11:00 0.353 0.219 0.219 0.02
10/25/2020 04:15 5.35 10:45 8.11 7.02 04:15 0.33 09:55 0.81 0.63 04:15 0.063 10:45 0.325 0.207 0.207 -
10/26/2020 03:05 5.51 12:25 8.09 7.04 02:50 0.35 12:20 0.81 0.62 03:05 0.069 12:25 0.325 0.205 0.205 -
10/27/2020 02:20 5.46 19:15 7.93 7.03 01:10 0.33 12:45 0.82 0.62 01:10 0.069 19:15 0.303 0.205 0.205 -
10/28/2020 03:20 5.55 10:50 8.60 7.01 02:05 0.35 10:50 0.80 0.61 02:05 0.073 10:50 0.354 0.200 0.200 -
10/29/2020 03:15 5.40 11:45 8.08 7.04 03:10 0.34 16:50 0.79 0.62 03:15 0.065 11:45 0.312 0.204 0.204 -
10/30/2020 03:00 5.45 19:00 8.00 7.02 02:30 0.33 18:40 0.79 0.62 02:35 0.066 19:00 0.310 0.203 0.203 0.10
10/31/2020 04:25 5.62 10:25 8.47 7.11 04:10 0.37 10:35 0.87 0.64 04:30 0.076 10:25 0.370 0.216 0.216 -
11/01/2020 05:00 5.42 12:20 8.26 7.05 04:55 0.32 12:15 0.84 0.63 04:55 0.063 12:15 0.349 0.211 0.211 -
Page 606 of 1163
86
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/02/2020 04:15 5.31 12:35 7.81 6.99 04:10 0.32 12:35 0.78 0.62 04:10 0.060 12:35 0.295 0.201 0.201 -
11/03/2020 04:00 5.36 16:30 8.46 7.10 04:00 0.31 20:00 0.89 0.64 04:00 0.059 16:30 0.360 0.215 0.215 0.83
11/04/2020 02:40 5.61 18:00 7.99 7.02 02:15 0.39 20:30 0.83 0.64 02:15 0.084 20:30 0.308 0.209 0.209 0.09
11/05/2020 03:15 5.65 12:40 8.12 7.13 03:20 0.40 12:35 0.86 0.67 03:20 0.085 12:40 0.348 0.223 0.223 0.34
11/06/2020 02:50 5.50 14:25 8.19 6.99 00:40 0.38 14:20 0.84 0.63 03:55 0.077 14:25 0.342 0.205 0.205 0.10
11/07/2020 03:15 5.59 12:05 8.49 6.98 03:10 0.38 12:05 0.89 0.63 05:20 0.078 12:05 0.385 0.206 0.206 0.07
11/08/2020 05:35 5.41 10:15 8.22 7.01 05:30 0.35 10:15 0.84 0.62 05:30 0.067 10:15 0.347 0.206 0.206 0.01
11/09/2020 03:15 5.48 20:05 8.31 7.01 03:10 0.36 20:05 0.84 0.64 03:10 0.072 20:05 0.352 0.208 0.208 0.04
11/10/2020 03:25 5.52 12:45 7.97 6.96 02:55 0.36 12:40 0.78 0.63 02:55 0.073 12:40 0.306 0.201 0.201 0.03
11/11/2020 03:20 5.56 18:30 8.29 7.03 02:55 0.40 18:15 0.92 0.64 02:55 0.083 18:15 0.371 0.212 0.212 -
11/12/2020 03:20 5.46 21:45 7.95 7.01 03:05 0.33 12:10 0.79 0.64 03:10 0.066 12:15 0.309 0.209 0.209 0.16
11/13/2020 02:20 5.82 10:25 7.96 7.16 01:55 0.40 10:25 0.79 0.66 01:55 0.092 10:25 0.310 0.221 0.221 0.38
11/14/2020 04:30 5.47 10:20 8.68 7.19 04:10 0.39 10:15 0.93 0.66 04:30 0.078 10:20 0.416 0.230 0.230 0.47
11/15/2020 05:00 5.54 18:10 8.68 7.15 04:55 0.37 18:05 0.87 0.66 04:55 0.075 18:10 0.392 0.223 0.223 0.19
11/16/2020 04:20 5.64 13:45 8.37 7.14 04:15 0.37 13:40 0.85 0.65 04:15 0.078 13:45 0.363 0.218 0.218 0.31
11/17/2020 04:00 5.57 12:35 8.14 7.07 01:50 0.40 12:15 0.85 0.64 03:55 0.081 12:15 0.339 0.212 0.212 0.20
11/18/2020 04:25 5.56 18:20 8.15 7.10 04:20 0.37 12:05 0.85 0.64 04:25 0.075 12:05 0.341 0.216 0.216 0.30
11/19/2020 02:55 5.70 10:30 8.19 7.13 01:40 0.39 12:45 0.84 0.66 02:55 0.085 10:30 0.339 0.220 0.220 0.50
11/20/2020 03:25 5.57 17:20 8.01 6.97 03:00 0.41 17:20 0.84 0.64 03:00 0.088 17:20 0.331 0.207 0.207 0.01
11/21/2020 05:10 5.49 11:50 8.38 7.04 05:05 0.40 11:45 0.87 0.66 05:05 0.081 11:45 0.368 0.217 0.217 -
11/22/2020 05:35 5.52 12:15 8.05 7.07 05:30 0.39 12:15 0.81 0.65 05:30 0.078 12:15 0.323 0.217 0.217 0.21
11/23/2020 04:30 5.71 13:45 8.39 7.17 04:15 0.40 13:40 0.86 0.65 04:15 0.088 13:40 0.367 0.222 0.222 0.14
11/24/2020 02:55 5.57 13:40 8.47 7.13 02:40 0.38 09:30 0.88 0.65 02:45 0.078 13:40 0.377 0.218 0.218 0.21
11/25/2020 04:30 5.59 18:25 8.68 7.15 04:30 0.39 18:20 0.90 0.66 04:30 0.081 18:25 0.404 0.224 0.224 0.05
11/26/2020 07:00 5.66 12:25 8.76 7.23 05:05 0.40 12:25 0.93 0.68 06:55 0.086 12:25 0.422 0.237 0.237 0.02
11/27/2020 04:10 5.58 11:50 8.39 7.16 01:50 0.40 13:40 0.86 0.66 04:10 0.081 13:45 0.365 0.223 0.223 -
11/28/2020 04:10 5.61 10:40 8.45 7.23 04:00 0.40 10:45 0.88 0.67 04:00 0.083 10:45 0.378 0.231 0.231 0.05
11/29/2020 05:20 5.70 11:40 8.30 7.12 05:05 0.40 11:50 0.85 0.65 05:20 0.085 11:50 0.354 0.217 0.217 -
11/30/2020 03:35 5.72 13:40 8.15 7.22 03:15 0.38 13:40 0.80 0.63 03:30 0.082 13:40 0.326 0.215 0.215 0.36
12/01/2020 04:15 5.62 15:25 8.51 7.09 04:05 0.35 15:20 0.82 0.60 04:05 0.074 15:20 0.355 0.201 0.201 -
12/02/2020 03:30 5.61 10:45 8.24 7.16 03:25 0.37 13:05 0.81 0.63 03:25 0.077 16:30 0.327 0.214 0.214 0.01
12/03/2020 04:20 5.74 12:05 7.96 7.15 04:10 0.40 19:30 0.77 0.62 04:15 0.086 19:35 0.300 0.210 0.210 -
12/04/2020 02:50 5.85 14:55 8.20 7.15 02:40 0.38 14:50 0.79 0.62 02:50 0.085 14:50 0.324 0.208 0.208 -
12/05/2020 03:35 5.69 12:00 8.57 7.15 03:15 0.37 12:00 0.84 0.64 03:15 0.080 12:00 0.368 0.216 0.216 0.03
12/06/2020 06:30 5.66 10:25 8.05 7.07 06:35 0.35 10:05 0.83 0.63 06:35 0.074 10:05 0.327 0.210 0.210 0.03
12/07/2020 03:20 5.69 17:35 8.05 7.08 03:25 0.34 17:25 0.82 0.63 03:25 0.073 17:30 0.328 0.210 0.210 -
12/08/2020 04:25 5.65 16:10 8.33 7.26 02:40 0.37 16:20 0.86 0.65 04:15 0.078 16:20 0.358 0.228 0.228 0.87
12/09/2020 04:35 5.88 18:55 8.04 7.18 05:05 0.42 18:25 0.82 0.65 04:35 0.100 18:30 0.321 0.220 0.220 0.17
12/10/2020 03:15 5.88 08:35 8.11 7.15 02:50 0.42 08:35 0.79 0.63 03:15 0.095 08:35 0.320 0.213 0.213 0.07
12/11/2020 03:55 5.84 16:20 8.16 7.20 03:55 0.40 12:00 0.80 0.64 03:55 0.091 16:20 0.327 0.218 0.218 0.02
12/12/2020 04:40 5.80 11:15 8.59 7.24 04:40 0.39 11:15 0.87 0.65 04:40 0.087 11:15 0.382 0.225 0.225 0.01
12/13/2020 05:00 5.74 11:30 8.45 7.21 04:50 0.38 11:10 0.86 0.64 05:00 0.083 11:30 0.364 0.221 0.221 0.24
12/14/2020 02:40 5.68 18:00 8.94 7.15 02:40 0.39 17:55 0.98 0.64 02:40 0.084 18:00 0.460 0.215 0.215 0.05
12/15/2020 04:05 5.80 16:10 8.41 7.25 02:45 0.39 16:05 0.83 0.65 02:45 0.088 16:10 0.348 0.225 0.225 0.58
12/16/2020 03:35 5.80 15:15 8.69 7.28 02:00 0.40 09:15 0.82 0.65 03:30 0.092 15:10 0.357 0.228 0.228 0.39
12/17/2020 03:55 5.78 17:45 8.12 7.18 04:45 0.36 17:25 0.82 0.64 04:45 0.083 17:25 0.327 0.218 0.218 0.08
12/18/2020 04:00 5.87 12:50 8.33 7.21 02:30 0.39 12:45 0.83 0.64 02:30 0.089 12:45 0.347 0.217 0.217 0.25
12/19/2020 04:20 5.80 16:50 8.42 7.31 04:40 0.38 16:45 0.90 0.65 04:40 0.087 16:50 0.380 0.232 0.232 0.37
12/20/2020 04:55 5.88 11:45 8.28 7.27 05:00 0.35 12:35 0.86 0.65 05:00 0.081 11:40 0.344 0.226 0.226 0.04
12/21/2020 04:50 6.21 17:00 8.73 7.51 02:50 0.44 17:00 0.91 0.70 03:25 0.114 17:00 0.411 0.256 0.256 1.07
12/22/2020 03:45 6.07 09:35 8.36 7.33 04:55 0.39 15:25 0.86 0.67 04:55 0.096 09:35 0.354 0.234 0.234 -
12/23/2020 03:35 5.92 12:55 8.33 7.29 01:55 0.41 12:55 0.85 0.66 03:25 0.098 13:00 0.359 0.229 0.229 -
12/24/2020 04:15 5.89 12:05 8.63 7.28 04:15 0.39 12:00 0.87 0.65 04:15 0.090 12:05 0.386 0.227 0.227 -
12/25/2020 05:30 5.80 15:10 8.29 7.18 06:00 0.37 11:35 0.83 0.63 06:00 0.082 15:05 0.334 0.214 0.214 0.49
12/26/2020 04:40 5.92 12:20 8.38 7.21 04:40 0.39 12:00 0.85 0.64 04:40 0.091 12:20 0.359 0.219 0.219 0.02
12/27/2020 04:30 5.78 12:40 8.68 7.25 05:40 0.40 12:40 0.91 0.65 04:20 0.097 12:40 0.407 0.228 0.228 0.13
12/28/2020 03:35 5.85 13:05 8.28 7.29 03:30 0.37 13:00 0.83 0.64 03:30 0.084 13:05 0.344 0.224 0.224 -
12/29/2020 04:45 5.89 14:25 8.78 7.32 04:25 0.37 14:25 0.89 0.65 04:10 0.086 14:25 0.406 0.231 0.231 0.14
12/30/2020 03:15 6.24 14:25 8.37 7.51 04:15 0.46 14:20 0.85 0.70 03:15 0.123 14:20 0.357 0.255 0.255 0.78
12/31/2020 04:05 6.42 17:35 8.53 7.51 05:10 0.48 10:45 0.87 0.70 05:10 0.133 18:20 0.380 0.254 0.254 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 47.749 30.65
Average 7.27 0.67 0.234
Page 607 of 1163
87
Page 608 of 1163
88
AUB_A1d_30910
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Data are not available from February 15th through February 19th due to a monitor problem. The monitor was replaced on February 19th
to resolve the problem.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 1.81 1.41 0.087
Minimum 0.63 0.55 0.012
Maximum 2.94 2.27 0.190
Min Time 11/02/2020 3:00:00 AM 12/20/2020 3:00:00 AM 11/01/2020 4:00:00 AM
Max Time 01/02/2021 1:00:00 PM 11/01/2020 11:00:00 AM 01/03/2021 12:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 97.749
VFINAL (ft/s) 97.749
QFINAL (MGD - Total MG) 97.749
Pipe Elliptical (18.13 in H x 18 in W)
Silt 0.00 (in)
Page 609 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A1d_30910
Page 610 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A1d_30910
Page 611 of 1163
4455 S. 134th Place
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A1d_30910Pipe: Elliptical (18.13 in H x 18 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 07:40 1.17 16:55 2.50 1.93 03:45 1.29 08:20 1.87 1.50 05:00 0.045 16:55 0.150 0.100 0.100 0.51
01/02/2021 01:50 1.43 13:20 3.01 2.32 02:50 1.25 20:45 1.70 1.51 01:50 0.059 13:15 0.200 0.132 0.132 1.69
01/03/2021 23:50 1.92 13:40 3.04 2.45 21:30 1.42 10:55 1.79 1.55 23:55 0.100 12:20 0.211 0.145 0.145 0.65
01/04/2021 03:40 1.71 12:00 2.88 2.30 22:45 1.26 12:45 1.79 1.53 03:10 0.085 12:45 0.202 0.130 0.130 0.48
01/05/2021 03:25 1.44 14:45 2.84 2.14 04:35 1.17 12:45 1.87 1.48 03:25 0.064 13:30 0.186 0.114 0.114 0.52
01/06/2021 04:30 1.48 13:20 2.52 1.98 07:30 1.21 13:15 1.76 1.48 04:25 0.068 13:15 0.163 0.102 0.102 0.22
01/07/2021 03:25 1.04 16:55 2.76 2.03 05:55 1.35 05:35 1.96 1.52 03:25 0.043 16:55 0.167 0.108 0.108 -
01/08/2021 03:50 1.15 16:10 2.61 2.00 05:50 1.30 04:35 1.64 1.46 04:15 0.044 16:05 0.153 0.103 0.103 0.22
01/09/2021 03:45 1.16 12:35 2.70 2.00 07:55 1.30 08:25 1.74 1.47 03:45 0.047 12:35 0.160 0.104 0.104 -
01/10/2021 04:25 1.13 11:40 2.48 1.85 07:25 1.15 15:35 1.65 1.45 04:35 0.042 14:05 0.148 0.092 0.092 0.07
01/11/2021 04:45 0.97 20:20 2.63 2.04 05:50 1.21 07:20 1.82 1.44 04:45 0.037 20:20 0.157 0.105 0.105 1.06
01/12/2021 01:40 1.85 09:50 2.84 2.36 01:50 1.37 18:25 1.72 1.50 01:35 0.090 09:45 0.172 0.133 0.133 2.10
01/13/2021 23:25 1.62 09:30 2.70 2.16 11:30 1.44 19:55 1.99 1.65 04:25 0.085 17:15 0.186 0.128 0.128 0.09
01/14/2021 04:10 1.41 12:35 2.68 2.04 11:55 1.38 08:35 1.92 1.61 04:10 0.068 15:15 0.163 0.114 0.114 0.01
01/15/2021 03:45 1.39 12:25 2.55 2.07 10:20 1.37 20:10 1.74 1.50 04:05 0.062 17:30 0.147 0.110 0.110 0.09
01/16/2021 02:40 1.41 11:55 2.79 2.07 08:15 1.26 19:35 1.79 1.48 02:40 0.058 11:55 0.166 0.109 0.109 -
01/17/2021 06:30 1.37 17:15 2.44 1.91 02:35 1.40 03:45 1.94 1.62 01:45 0.062 17:30 0.141 0.104 0.104 0.10
01/18/2021 03:50 1.32 13:25 2.67 2.01 17:15 1.36 19:05 1.75 1.53 05:05 0.055 15:35 0.157 0.107 0.107 -
01/19/2021 03:55 1.23 08:20 2.44 1.81 14:50 1.31 16:30 1.96 1.59 03:45 0.049 16:40 0.146 0.095 0.095 0.01
01/20/2021 03:50 1.09 11:35 2.52 1.95 16:45 1.35 05:35 1.91 1.54 03:50 0.046 11:30 0.144 0.102 0.102 -
01/21/2021 03:45 1.15 13:45 2.55 1.96 05:05 1.34 06:20 1.78 1.50 03:40 0.047 12:55 0.143 0.101 0.101 0.11
01/22/2021 03:30 1.09 14:45 2.50 1.94 04:35 1.33 23:20 1.68 1.47 03:30 0.040 17:25 0.142 0.099 0.099 -
01/23/2021 03:40 0.98 10:55 2.68 1.90 06:45 1.31 00:25 1.69 1.47 03:40 0.035 10:55 0.155 0.096 0.096 -
01/24/2021 05:05 1.04 13:10 2.42 1.82 07:35 1.26 08:10 1.68 1.48 05:05 0.039 19:15 0.136 0.091 0.091 0.16
01/25/2021 03:10 1.06 13:25 2.57 1.90 09:00 1.28 22:45 1.83 1.51 03:20 0.040 14:20 0.150 0.098 0.098 0.04
01/26/2021 03:45 1.01 08:45 2.41 1.75 02:55 0.96 15:25 1.86 1.58 02:55 0.030 08:40 0.144 0.093 0.093 -
01/27/2021 04:30 0.92 17:25 2.53 1.74 23:50 1.06 15:45 1.89 1.60 02:55 0.026 17:30 0.149 0.092 0.092 0.14
01/28/2021 03:40 0.92 09:25 3.09 1.87 02:15 0.94 09:20 2.14 1.47 02:15 0.026 09:20 0.228 0.095 0.095 0.24
01/29/2021 02:50 1.07 17:00 2.52 1.88 22:50 1.35 10:15 1.70 1.50 02:50 0.041 10:20 0.148 0.097 0.097 0.03
01/30/2021 04:15 1.09 10:30 2.57 1.89 06:35 1.18 00:00 1.65 1.44 04:00 0.040 09:55 0.144 0.094 0.094 0.07
01/31/2021 03:45 1.09 10:30 2.51 1.82 06:30 1.28 09:55 1.66 1.45 03:45 0.039 10:25 0.145 0.090 0.090 0.12
02/01/2021 03:45 1.14 15:00 2.48 1.93 08:10 1.26 01:15 1.71 1.43 02:30 0.045 13:25 0.137 0.095 0.095 0.82
02/02/2021 02:00 1.19 10:10 2.61 2.01 04:00 1.19 18:45 1.57 1.38 02:00 0.043 18:50 0.146 0.098 0.098 0.31
02/03/2021 03:15 1.08 12:25 2.54 1.90 12:25 1.19 05:35 1.76 1.44 03:15 0.039 08:40 0.129 0.093 0.093 0.06
02/04/2021 02:55 1.08 12:05 2.50 1.85 06:00 1.25 22:35 1.65 1.43 02:55 0.038 17:40 0.138 0.090 0.090 0.07
02/05/2021 02:50 1.00 09:35 2.52 1.90 05:55 1.25 22:15 1.72 1.49 02:50 0.036 17:35 0.141 0.096 0.096 0.01
02/06/2021 03:05 0.97 10:50 2.91 1.87 03:15 1.26 00:00 1.72 1.50 03:05 0.034 10:50 0.174 0.096 0.096 0.01
02/07/2021 02:30 1.01 10:00 2.69 1.76 01:55 1.29 05:00 1.70 1.46 01:25 0.036 10:00 0.157 0.084 0.084 -
02/08/2021 04:05 0.87 09:55 2.42 1.80 01:40 1.20 05:55 1.89 1.45 04:05 0.028 09:50 0.134 0.087 0.087 -
02/09/2021 03:20 0.96 16:20 2.32 1.78 01:15 1.21 18:10 1.70 1.42 03:20 0.034 18:25 0.130 0.084 0.084 -
02/10/2021 03:35 0.75 15:35 2.55 1.76 05:45 1.22 05:35 1.76 1.47 03:35 0.025 15:35 0.154 0.086 0.086 -
02/11/2021 03:45 0.96 14:55 2.42 1.80 03:55 1.08 06:40 1.63 1.41 03:55 0.029 19:25 0.138 0.086 0.086 -
02/12/2021 02:20 1.01 12:35 2.43 1.74 05:15 0.73 15:00 1.74 1.42 05:15 0.025 16:50 0.135 0.083 0.083 -
02/13/2021 03:00 1.00 11:25 2.32 1.67 01:40 1.03 08:45 2.07 1.45 05:20 0.031 11:25 0.135 0.078 0.078 0.08
02/14/2021 04:10 0.94 14:30 2.38 1.74 02:20 0.88 09:10 1.65 1.43 02:20 0.027 11:15 0.135 0.084 0.084 0.71
02/15/2021 03:30 1.14 00:35 1.75 1.49 02:50 1.35 03:55 1.57 1.48 03:35 0.044 04:00 0.087 0.067 0.012 0.78
02/16/2021 - - - - - - - - - - - - - - - - 0.07
02/17/2021 - - - - - - - - - - - - - - - - -
02/18/2021 - - - - - - - - - - - - - - - - 0.09
02/19/2021 23:15 1.33 15:50 2.52 2.11 21:05 1.31 11:15 1.65 1.43 23:15 0.058 15:50 0.140 0.107 0.062 0.17
02/20/2021 04:45 0.85 11:40 2.64 1.80 00:40 1.24 07:30 1.80 1.51 04:45 0.034 11:40 0.147 0.091 0.091 0.07
02/21/2021 01:30 1.32 11:15 2.48 1.86 03:45 0.97 11:35 1.71 1.38 03:05 0.040 11:15 0.152 0.088 0.088 0.42
02/22/2021 02:25 0.98 16:30 2.55 1.94 05:25 1.17 18:35 1.72 1.40 02:25 0.033 18:35 0.151 0.094 0.094 0.98
02/23/2021 03:35 1.08 10:05 2.60 1.97 08:05 1.13 10:30 1.64 1.36 03:35 0.037 10:05 0.142 0.094 0.094 0.27
02/24/2021 02:45 1.00 17:20 2.71 1.95 10:30 1.25 05:10 1.79 1.45 02:45 0.038 17:25 0.153 0.097 0.097 -
02/25/2021 02:15 0.80 17:20 2.53 1.88 11:20 1.34 11:05 1.91 1.51 02:15 0.026 08:20 0.148 0.097 0.097 0.18
02/26/2021 03:35 1.00 17:40 2.61 1.91 02:00 1.27 23:35 1.77 1.48 03:35 0.037 17:40 0.148 0.097 0.097 0.10
02/27/2021 02:50 0.96 12:20 2.68 1.84 06:00 1.18 07:50 1.76 1.48 02:50 0.031 11:30 0.154 0.093 0.093 0.02
02/28/2021 02:20 0.92 11:40 2.47 1.69 06:05 1.20 08:40 1.86 1.52 02:20 0.031 10:45 0.146 0.085 0.085 0.02
03/01/2021 01:20 0.89 16:45 2.70 1.82 08:50 1.21 04:40 1.69 1.45 01:40 0.028 16:45 0.153 0.089 0.089 -
03/02/2021 02:45 0.76 17:40 2.44 1.74 00:35 1.24 05:40 1.67 1.48 02:45 0.023 17:40 0.135 0.085 0.085 -
03/03/2021 03:25 0.84 17:15 2.62 1.76 05:30 1.18 20:05 1.70 1.47 03:25 0.024 17:10 0.149 0.086 0.086 -
03/04/2021 04:35 0.88 12:35 2.57 1.73 04:25 1.19 05:35 1.83 1.48 03:05 0.028 12:35 0.143 0.085 0.085 0.20
03/05/2021 02:00 0.73 14:40 2.53 1.73 03:40 1.16 05:40 1.75 1.43 02:00 0.021 14:40 0.134 0.082 0.082 0.05
03/06/2021 02:40 1.22 11:45 2.65 1.85 05:15 0.68 19:55 1.65 1.34 05:15 0.032 11:40 0.152 0.085 0.085 -
03/07/2021 04:10 0.90 10:55 2.55 1.85 19:40 1.08 11:25 1.57 1.30 02:45 0.027 10:50 0.141 0.083 0.083 0.04
03/08/2021 04:35 1.02 16:40 2.93 1.93 02:45 1.07 19:45 1.68 1.30 04:35 0.031 16:40 0.163 0.087 0.087 -
03/09/2021 02:35 0.80 17:45 2.59 1.73 01:40 1.11 08:25 1.59 1.40 02:35 0.024 17:25 0.132 0.079 0.079 0.01
03/10/2021 03:10 0.72 11:45 2.57 1.86 16:15 1.11 04:45 1.56 1.33 03:10 0.021 12:50 0.141 0.085 0.085 -
03/11/2021 04:20 1.07 16:35 2.78 2.01 02:50 1.00 22:55 1.41 1.21 04:20 0.032 16:30 0.136 0.086 0.086 -
Page 612 of 1163
92
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 02:35 1.02 17:30 2.65 1.89 04:10 0.98 19:55 1.52 1.26 02:35 0.030 17:35 0.133 0.083 0.083 -
03/13/2021 04:10 0.86 10:10 2.88 1.85 06:05 1.06 05:40 1.54 1.32 04:10 0.027 10:10 0.160 0.084 0.084 -
03/14/2021 03:10 1.08 11:10 2.45 1.81 05:45 1.02 12:20 1.50 1.32 04:20 0.034 20:05 0.133 0.081 0.081 0.30
03/15/2021 03:20 0.91 15:15 2.69 1.84 04:30 1.12 18:55 1.50 1.32 03:20 0.028 15:15 0.142 0.083 0.083 -
03/16/2021 01:15 0.84 10:55 2.50 1.77 03:00 1.07 14:50 1.67 1.34 01:15 0.024 14:55 0.138 0.080 0.080 -
03/17/2021 01:50 0.84 08:40 2.48 1.78 23:15 1.09 18:55 1.52 1.34 01:45 0.025 12:35 0.130 0.080 0.080 -
03/18/2021 02:45 0.95 11:45 2.59 1.83 22:20 0.90 12:05 1.57 1.32 01:45 0.031 11:45 0.144 0.082 0.082 0.11
03/19/2021 02:35 1.08 10:35 2.77 2.04 23:45 0.96 07:30 1.43 1.17 02:35 0.030 08:35 0.128 0.085 0.085 0.03
03/20/2021 01:05 1.24 10:55 2.80 2.03 03:05 0.79 09:15 1.46 1.12 01:50 0.029 10:55 0.143 0.083 0.083 0.17
03/21/2021 23:25 1.09 11:20 2.79 2.01 00:30 0.88 08:20 1.42 1.16 23:25 0.032 08:25 0.139 0.083 0.083 0.07
03/22/2021 01:55 1.16 12:55 2.65 1.98 03:20 0.97 07:25 1.41 1.17 01:50 0.035 19:05 0.133 0.081 0.081 0.11
03/23/2021 01:30 0.92 11:05 3.04 1.79 07:50 0.99 19:00 1.69 1.34 03:05 0.030 11:05 0.146 0.080 0.080 -
03/24/2021 00:50 0.90 11:35 2.66 1.80 21:25 0.97 15:30 1.76 1.41 00:05 0.028 14:30 0.151 0.086 0.086 0.34
03/25/2021 03:20 0.81 12:15 2.31 1.65 22:50 1.00 13:20 1.76 1.48 03:25 0.026 12:10 0.146 0.081 0.081 0.27
03/26/2021 02:10 0.73 07:55 2.50 1.74 19:50 1.04 07:20 1.69 1.48 02:10 0.021 07:55 0.152 0.088 0.088 -
03/27/2021 04:30 0.79 11:00 2.39 1.65 21:35 0.92 14:45 1.72 1.43 04:30 0.024 11:00 0.145 0.078 0.078 -
03/28/2021 02:55 0.96 12:20 2.33 1.67 06:35 0.89 14:10 1.74 1.44 02:55 0.028 12:20 0.137 0.080 0.080 0.37
03/29/2021 02:30 0.70 12:15 2.48 1.71 21:45 1.14 19:15 1.66 1.47 02:30 0.018 12:15 0.142 0.084 0.084 -
03/30/2021 02:30 0.71 09:30 2.33 1.71 22:20 1.10 17:15 1.74 1.45 02:30 0.019 09:20 0.129 0.083 0.083 -
03/31/2021 01:30 0.85 11:55 2.26 1.70 23:55 1.03 19:10 1.77 1.45 01:25 0.027 19:10 0.136 0.082 0.082 -
04/01/2021 23:55 1.05 11:55 2.53 1.85 00:10 1.00 18:50 1.71 1.35 23:55 0.035 15:45 0.131 0.085 0.085 -
04/02/2021 01:00 0.56 07:20 2.35 1.65 23:05 1.13 03:35 1.72 1.46 01:00 0.014 07:20 0.129 0.078 0.078 -
04/03/2021 02:40 0.67 10:55 2.54 1.62 00:20 1.06 16:50 1.76 1.43 02:40 0.021 10:55 0.150 0.076 0.076 -
04/04/2021 02:00 0.66 21:25 2.13 1.56 23:25 0.90 09:20 1.68 1.37 02:00 0.017 11:10 0.123 0.068 0.068 -
04/05/2021 23:50 1.01 13:15 2.31 1.73 02:50 0.82 16:10 1.72 1.36 23:55 0.021 13:25 0.143 0.080 0.080 -
04/06/2021 01:40 0.82 12:15 2.36 1.70 01:15 0.70 10:55 1.88 1.36 00:45 0.016 11:10 0.136 0.077 0.077 -
04/07/2021 02:40 0.75 09:35 2.49 1.68 01:10 0.53 20:35 1.72 1.31 01:10 0.012 16:20 0.114 0.072 0.072 0.22
04/08/2021 02:45 0.71 15:00 2.33 1.70 03:10 0.73 18:40 1.60 1.31 02:45 0.018 13:20 0.125 0.074 0.074 -
04/09/2021 01:45 0.66 10:10 2.33 1.67 00:00 1.14 03:20 1.72 1.42 01:45 0.019 13:45 0.117 0.077 0.077 0.03
04/10/2021 02:45 0.86 09:50 2.57 1.70 05:15 0.97 06:10 1.69 1.39 05:15 0.022 09:50 0.135 0.078 0.078 0.02
04/11/2021 02:50 0.80 11:25 2.18 1.53 01:45 0.81 06:15 1.69 1.44 01:10 0.017 09:50 0.114 0.071 0.071 -
04/12/2021 01:45 0.84 10:50 2.35 1.70 01:50 0.97 22:55 1.57 1.38 01:50 0.020 19:30 0.121 0.077 0.077 -
04/13/2021 01:50 0.77 11:25 2.43 1.73 00:55 0.86 06:55 1.63 1.30 03:05 0.017 17:45 0.122 0.076 0.076 -
04/14/2021 02:00 0.72 12:00 2.44 1.71 23:20 0.87 04:45 1.65 1.34 01:30 0.021 12:00 0.125 0.075 0.075 -
09/22/2020 23:55 1.21 20:10 2.23 1.91 23:15 0.97 16:10 1.76 1.45 23:15 0.047 20:10 0.127 0.094 0.057 -
09/23/2020 03:00 0.88 10:55 2.52 1.87 02:40 1.01 00:30 1.76 1.34 02:20 0.026 18:45 0.138 0.086 0.086 -
09/24/2020 03:55 0.85 08:40 2.38 1.74 05:25 1.05 15:00 1.87 1.41 01:35 0.025 12:55 0.138 0.082 0.082 -
09/25/2020 02:30 0.85 11:55 2.89 1.85 09:55 0.98 07:25 1.91 1.37 03:35 0.025 07:25 0.196 0.086 0.086 -
09/26/2020 02:35 0.95 11:25 2.52 1.80 02:30 0.76 18:10 1.96 1.38 02:35 0.020 18:10 0.182 0.087 0.087 -
09/27/2020 03:50 0.79 10:30 2.43 1.78 23:40 0.79 10:25 1.75 1.37 03:50 0.023 10:30 0.158 0.083 0.083 -
09/28/2020 02:10 1.06 10:25 2.36 1.84 02:55 0.65 10:05 1.58 1.26 02:55 0.018 10:20 0.130 0.080 0.080 -
09/29/2020 02:25 0.69 15:50 2.48 1.80 02:20 0.72 04:40 1.83 1.32 02:20 0.012 19:05 0.137 0.080 0.080 -
09/30/2020 02:35 0.91 10:50 3.47 1.82 23:45 0.92 13:55 1.72 1.41 02:25 0.029 10:50 0.247 0.088 0.088 -
10/01/2020 02:05 0.82 18:55 2.31 1.74 02:05 0.64 10:25 1.74 1.35 02:05 0.012 10:30 0.133 0.079 0.079 -
10/02/2020 02:20 0.79 09:10 2.40 1.78 02:15 0.77 03:35 1.65 1.31 02:15 0.014 15:55 0.129 0.081 0.081 -
10/03/2020 04:20 0.70 11:05 2.57 1.72 06:40 0.70 05:05 1.76 1.40 00:40 0.016 11:30 0.142 0.081 0.081 0.01
10/04/2020 02:30 0.91 13:00 2.30 1.76 02:15 0.54 11:35 1.72 1.35 02:15 0.013 13:00 0.143 0.082 0.082 0.01
10/05/2020 01:20 1.08 09:55 2.56 1.84 00:10 0.67 16:30 1.70 1.27 00:25 0.021 16:40 0.135 0.080 0.080 -
10/06/2020 23:15 0.84 15:40 2.57 1.75 01:20 0.55 06:15 1.72 1.30 01:25 0.012 18:50 0.151 0.079 0.079 -
10/07/2020 01:25 0.89 15:40 2.60 1.83 00:10 0.61 13:25 1.85 1.28 01:35 0.016 19:05 0.139 0.082 0.082 -
10/08/2020 03:40 0.57 10:10 2.61 1.72 01:35 0.56 14:40 1.80 1.36 01:35 0.007 10:05 0.130 0.079 0.079 -
10/09/2020 04:10 0.58 09:15 2.40 1.69 01:35 0.37 13:25 1.74 1.37 01:30 0.007 09:35 0.131 0.079 0.079 0.64
10/10/2020 04:00 1.05 11:10 2.52 1.78 23:10 0.84 00:40 1.89 1.45 23:10 0.028 10:45 0.144 0.087 0.087 1.04
10/11/2020 02:40 0.73 16:25 2.52 1.81 02:30 0.53 08:35 1.66 1.33 02:35 0.009 11:15 0.149 0.085 0.085 0.53
10/12/2020 23:55 0.95 12:20 2.48 1.79 04:55 0.67 07:30 1.76 1.27 00:50 0.019 18:20 0.144 0.079 0.079 -
10/13/2020 03:10 0.85 10:05 2.37 1.79 01:50 0.82 03:40 1.73 1.42 01:35 0.019 18:45 0.139 0.087 0.087 0.61
10/14/2020 02:00 0.74 12:20 2.29 1.70 03:20 0.84 15:05 1.68 1.37 03:30 0.017 20:05 0.125 0.078 0.078 -
10/15/2020 03:40 0.79 09:45 2.34 1.70 00:10 0.69 11:40 1.74 1.40 01:10 0.017 11:40 0.127 0.079 0.079 -
10/16/2020 03:00 0.85 08:50 2.41 1.70 03:00 0.83 04:25 1.77 1.39 03:00 0.016 16:25 0.132 0.079 0.079 -
10/17/2020 04:50 0.71 10:15 2.50 1.70 05:50 0.58 03:50 1.66 1.35 04:50 0.011 10:10 0.139 0.078 0.078 0.01
10/18/2020 02:05 0.83 12:00 2.35 1.71 02:00 0.59 12:00 1.74 1.35 02:05 0.011 12:00 0.152 0.079 0.079 0.03
10/19/2020 01:15 0.62 09:15 2.30 1.69 02:20 0.60 04:15 1.83 1.41 01:15 0.009 18:50 0.144 0.079 0.079 0.05
10/20/2020 03:35 0.57 09:05 2.28 1.70 01:40 0.48 19:40 1.71 1.37 03:35 0.007 19:05 0.135 0.079 0.079 -
10/21/2020 01:50 0.77 15:45 2.27 1.67 01:45 0.60 12:15 1.67 1.36 01:50 0.010 15:40 0.131 0.076 0.076 0.01
10/22/2020 02:05 0.66 11:55 2.28 1.67 02:00 0.49 18:15 1.78 1.38 02:00 0.007 16:10 0.134 0.077 0.077 -
10/23/2020 02:05 0.79 11:10 3.29 1.69 02:20 0.86 11:05 1.98 1.41 02:05 0.015 11:10 0.228 0.080 0.080 0.20
10/24/2020 00:20 0.88 10:35 2.47 1.73 00:15 0.63 14:20 1.89 1.37 00:15 0.013 10:30 0.151 0.082 0.082 0.02
10/25/2020 03:00 0.67 09:35 2.66 1.71 03:10 0.84 07:55 1.86 1.41 03:00 0.012 09:35 0.180 0.081 0.081 -
10/26/2020 01:35 0.66 10:10 2.65 1.74 01:35 0.44 18:25 1.91 1.39 01:35 0.006 18:30 0.142 0.082 0.082 -
10/27/2020 01:50 0.64 11:10 2.36 1.67 04:10 0.49 10:00 1.92 1.38 01:35 0.011 11:10 0.128 0.077 0.077 -
10/28/2020 04:15 0.73 19:20 2.20 1.65 03:10 0.60 04:20 1.77 1.39 03:15 0.010 19:15 0.125 0.076 0.076 -
10/29/2020 03:50 0.78 12:20 2.39 1.67 03:20 0.82 05:25 2.05 1.45 04:00 0.015 19:10 0.154 0.080 0.080 -
10/30/2020 03:35 0.90 16:05 2.32 1.71 00:25 0.79 06:55 1.83 1.39 03:30 0.018 06:55 0.139 0.080 0.080 0.10
10/31/2020 05:25 0.84 09:20 2.50 1.69 04:15 0.61 20:30 1.84 1.36 04:10 0.015 09:15 0.140 0.078 0.078 -
Page 613 of 1163
93
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 05:20 0.66 10:15 2.30 1.53 04:35 0.48 11:45 2.38 1.67 04:35 0.007 10:45 0.172 0.087 0.087 -
11/02/2020 04:00 0.54 08:35 2.13 1.43 04:10 0.94 08:30 2.39 2.00 03:55 0.010 08:35 0.170 0.091 0.091 -
11/03/2020 03:00 0.61 06:55 2.51 1.71 03:15 0.52 06:40 2.16 1.47 03:15 0.006 17:15 0.136 0.082 0.082 0.83
11/04/2020 03:30 0.97 06:55 2.43 1.74 02:50 0.67 18:50 1.89 1.33 03:20 0.018 06:55 0.141 0.079 0.079 0.09
11/05/2020 03:45 0.87 14:30 2.32 1.75 03:30 0.55 05:40 1.79 1.38 03:30 0.012 14:25 0.121 0.082 0.082 0.34
11/06/2020 02:40 0.78 08:40 2.40 1.68 03:45 0.52 04:50 1.72 1.38 03:20 0.010 17:00 0.138 0.077 0.077 0.10
11/07/2020 03:50 1.05 11:50 2.52 1.68 02:50 0.78 15:10 1.76 1.35 02:50 0.022 11:50 0.145 0.076 0.076 0.07
11/08/2020 06:30 0.89 10:45 2.47 1.67 02:45 0.86 06:45 1.67 1.39 06:25 0.020 10:45 0.153 0.077 0.077 0.01
11/09/2020 04:00 0.67 13:35 2.19 1.59 02:45 0.81 18:00 1.95 1.46 02:45 0.016 14:10 0.117 0.074 0.074 0.04
11/10/2020 03:10 0.69 12:35 2.27 1.60 04:10 0.59 14:00 1.85 1.42 03:10 0.014 19:20 0.144 0.075 0.075 0.03
11/11/2020 03:45 0.59 12:50 2.62 1.65 03:55 0.73 08:40 1.80 1.38 03:55 0.008 18:15 0.164 0.076 0.076 -
11/12/2020 04:50 0.58 21:40 2.29 1.62 04:40 0.52 07:40 1.82 1.33 04:45 0.006 21:40 0.132 0.072 0.072 0.16
11/13/2020 03:00 0.81 15:10 2.93 1.70 03:05 0.57 12:55 1.73 1.38 03:05 0.011 15:10 0.174 0.079 0.079 0.38
11/14/2020 04:10 0.62 12:35 2.68 1.63 04:20 0.60 07:45 1.95 1.45 04:10 0.008 12:30 0.169 0.078 0.078 0.47
11/15/2020 04:10 0.74 17:55 3.70 1.69 04:25 0.38 17:50 2.48 1.36 04:20 0.006 17:55 0.351 0.080 0.080 0.19
11/16/2020 04:05 0.83 11:05 2.46 1.68 04:00 0.80 17:55 1.70 1.39 04:00 0.016 11:05 0.151 0.078 0.078 0.31
11/17/2020 03:55 0.86 12:25 2.34 1.69 04:00 0.71 08:15 1.84 1.42 04:00 0.015 19:55 0.134 0.080 0.080 0.20
11/18/2020 03:05 0.85 12:50 2.20 1.58 03:05 0.60 15:50 2.20 1.53 03:05 0.012 12:15 0.140 0.080 0.080 0.30
11/19/2020 04:30 0.62 15:25 2.71 1.63 04:25 0.79 15:20 2.35 1.50 04:30 0.010 15:25 0.138 0.079 0.079 0.50
11/20/2020 04:10 0.78 12:50 2.38 1.67 04:10 0.48 08:20 2.03 1.33 04:10 0.008 12:45 0.140 0.075 0.075 0.01
11/21/2020 03:00 0.74 10:50 2.55 1.70 04:45 0.52 08:35 1.74 1.31 03:00 0.010 10:40 0.156 0.078 0.078 -
11/22/2020 07:10 0.75 12:30 2.31 1.66 05:30 0.79 07:10 1.80 1.35 05:30 0.014 12:20 0.134 0.075 0.075 0.21
11/23/2020 02:25 0.92 13:40 2.33 1.75 02:20 0.75 15:25 1.70 1.40 02:25 0.017 13:30 0.128 0.083 0.083 0.14
11/24/2020 04:35 0.79 13:30 4.03 1.73 02:30 0.64 12:15 2.17 1.36 02:30 0.012 13:30 0.286 0.081 0.081 0.21
11/25/2020 03:45 0.84 09:20 2.18 1.64 03:40 0.60 13:50 1.86 1.42 03:40 0.013 17:15 0.132 0.078 0.078 0.05
11/26/2020 06:35 1.03 13:45 2.51 1.72 06:40 0.41 07:45 1.86 1.36 06:40 0.011 13:45 0.168 0.080 0.080 0.02
11/27/2020 05:50 0.80 11:35 2.51 1.68 03:55 0.62 07:55 1.86 1.39 05:45 0.013 11:25 0.151 0.079 0.079 -
11/28/2020 01:45 0.79 11:40 2.38 1.69 01:35 0.66 11:10 1.66 1.38 01:40 0.014 11:30 0.143 0.079 0.079 0.05
11/29/2020 05:05 0.70 19:05 2.19 1.58 02:35 0.65 05:40 1.84 1.40 02:30 0.012 19:05 0.123 0.072 0.072 -
11/30/2020 03:35 0.63 11:25 2.32 1.73 02:15 0.69 00:55 1.98 1.38 02:35 0.010 11:25 0.129 0.081 0.081 0.36
12/01/2020 03:15 0.84 16:45 2.39 1.72 04:30 0.61 17:35 1.64 1.35 04:30 0.013 16:45 0.144 0.079 0.079 -
12/02/2020 02:25 0.87 16:20 2.47 1.75 06:45 0.73 08:15 1.67 1.38 06:45 0.018 16:15 0.147 0.083 0.083 0.01
12/03/2020 03:00 0.97 18:30 2.42 1.80 03:00 0.73 22:30 1.93 1.38 03:00 0.017 18:25 0.148 0.085 0.085 -
12/04/2020 04:55 1.10 15:15 2.34 1.86 01:30 0.79 07:25 1.88 1.35 03:25 0.028 15:10 0.131 0.087 0.087 -
12/05/2020 01:30 1.10 11:00 2.82 1.92 04:45 0.64 18:45 1.62 1.29 04:50 0.020 12:25 0.150 0.088 0.088 0.03
12/06/2020 04:15 0.87 19:00 2.32 1.75 06:55 0.69 11:10 1.76 1.34 02:25 0.021 11:10 0.146 0.080 0.080 0.03
12/07/2020 03:30 1.11 17:25 2.46 1.84 03:00 0.74 19:50 1.71 1.34 02:35 0.027 17:20 0.140 0.085 0.085 -
12/08/2020 04:10 0.95 16:05 2.53 1.90 01:45 0.93 06:35 1.70 1.39 04:00 0.026 16:05 0.147 0.093 0.093 0.87
12/09/2020 02:55 1.01 18:35 2.61 1.93 02:45 0.92 09:40 1.59 1.30 02:45 0.024 18:30 0.155 0.088 0.088 0.17
12/10/2020 01:35 1.06 12:00 2.73 1.84 03:05 0.57 18:20 1.74 1.29 03:05 0.019 12:00 0.145 0.083 0.083 0.07
12/11/2020 03:35 0.85 13:50 2.36 1.80 03:25 0.62 08:15 1.59 1.35 03:25 0.014 13:45 0.131 0.084 0.084 0.02
12/12/2020 05:55 1.12 10:45 2.54 1.75 04:45 0.60 21:45 2.01 1.40 02:45 0.019 10:40 0.148 0.084 0.084 0.01
12/13/2020 04:50 0.90 09:50 2.36 1.75 00:35 0.69 09:45 2.37 1.44 00:35 0.023 10:35 0.141 0.085 0.085 0.24
12/14/2020 04:15 0.87 16:15 2.34 1.80 04:15 0.77 12:00 1.61 1.38 04:15 0.015 16:40 0.130 0.085 0.085 0.05
12/15/2020 03:50 1.08 16:20 2.41 1.84 23:35 1.17 07:35 1.76 1.46 02:40 0.043 16:45 0.142 0.091 0.091 0.58
12/16/2020 03:25 1.10 18:35 2.41 1.85 03:20 0.72 18:25 1.68 1.35 03:20 0.021 18:40 0.144 0.087 0.087 0.39
12/17/2020 02:30 1.11 17:30 2.55 1.85 23:30 0.89 12:55 1.80 1.41 01:25 0.038 17:30 0.151 0.089 0.089 0.08
12/18/2020 03:25 1.04 10:40 2.35 1.81 03:00 0.64 09:10 1.65 1.38 03:00 0.021 13:50 0.136 0.086 0.086 0.25
12/19/2020 02:20 1.07 13:10 2.49 1.85 03:10 0.59 09:40 1.63 1.30 03:10 0.019 13:05 0.146 0.085 0.085 0.37
12/20/2020 04:10 1.07 20:25 2.43 1.86 03:35 0.45 20:20 1.75 1.23 04:05 0.013 20:20 0.155 0.082 0.082 0.04
12/21/2020 04:20 1.04 16:20 2.48 1.87 03:30 0.95 17:25 1.72 1.41 03:35 0.030 16:20 0.142 0.091 0.091 1.07
12/22/2020 03:55 0.98 10:05 2.36 1.84 04:35 1.24 07:25 1.67 1.45 03:55 0.035 10:05 0.136 0.090 0.090 -
12/23/2020 02:50 0.94 14:25 2.44 1.82 05:25 1.19 07:00 1.64 1.43 02:50 0.032 12:50 0.141 0.088 0.088 -
12/24/2020 02:35 1.00 09:50 2.50 1.78 06:50 1.10 05:55 1.77 1.43 03:10 0.035 09:45 0.139 0.085 0.085 -
12/25/2020 06:15 1.06 11:10 2.27 1.74 02:35 0.99 18:50 1.70 1.34 03:40 0.037 12:10 0.130 0.076 0.076 0.49
12/26/2020 04:55 1.12 12:20 2.62 1.88 23:55 1.08 17:15 1.64 1.34 04:55 0.041 12:20 0.150 0.087 0.087 0.02
12/27/2020 04:55 0.98 11:50 2.55 1.83 07:55 1.04 05:00 1.98 1.38 05:50 0.037 12:00 0.140 0.085 0.085 0.13
12/28/2020 03:25 1.25 11:35 2.58 1.91 01:05 0.92 18:00 1.64 1.37 00:50 0.039 11:35 0.151 0.092 0.092 -
12/29/2020 03:15 0.79 11:25 2.59 1.89 06:00 1.10 18:10 1.71 1.48 03:15 0.025 13:25 0.160 0.097 0.097 0.14
12/30/2020 05:10 1.20 12:35 2.86 2.08 01:45 0.99 05:25 1.74 1.49 01:45 0.037 17:10 0.187 0.113 0.113 0.78
12/31/2020 02:05 1.26 11:10 2.85 2.11 11:10 1.24 07:15 1.81 1.51 02:50 0.051 14:20 0.177 0.115 0.115 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 17.381 30.65
Average 1.81 1.41 0.087
Page 614 of 1163
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Page 615 of 1163
95
AUB_A2_40805K
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 15.12 2.00 5.587
Minimum 9.17 1.29 1.708
Maximum 25.82 2.57 14.268
Min Time 10/04/2020 5:00:00 AM 10/04/2020 5:00:00 AM 10/04/2020 5:00:00 AM
Max Time 01/12/2021 8:00:00 PM 01/13/2021 2:00:00 AM 01/12/2021 9:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 95.015
VFINAL (ft/s) 95.015
QFINAL (MGD - Total MG) 95.015
Pipe Elliptical (71.5 in H x 70 in W)
Silt 0.00 (in)
Page 616 of 1163
4455 S. 134th Place
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Hydrograph Report
AUB_A2_40805K
Page 617 of 1163
4455 S. 134th Place
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Scattergraph Report
AUB_A2_40805K
Page 618 of 1163
4455 S. 134th Place
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A2_40805KPipe: Elliptical (71.5 in H x 70 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 06:10 13.03 17:35 18.67 15.91 07:10 1.80 16:45 2.34 2.09 07:10 3.987 17:25 8.558 6.223 6.223 0.51
01/02/2021 06:30 13.08 23:55 22.98 17.22 05:40 1.77 22:00 2.57 2.14 07:20 3.968 23:55 12.470 7.234 7.234 1.69
01/03/2021 08:40 17.90 01:50 24.01 20.81 06:35 2.12 14:45 2.58 2.36 08:35 7.539 01:50 13.050 10.145 10.145 0.65
01/04/2021 05:05 16.56 13:45 21.20 19.33 04:30 2.04 13:35 2.45 2.29 05:05 6.416 13:50 10.710 8.884 8.884 0.48
01/05/2021 05:20 15.64 22:15 20.81 18.39 03:30 2.02 22:05 2.42 2.24 04:45 5.784 22:05 10.300 8.089 8.089 0.52
01/06/2021 05:45 16.92 20:00 20.06 18.87 05:15 2.10 13:15 2.40 2.28 05:15 6.725 19:55 9.718 8.512 8.512 0.22
01/07/2021 05:40 14.84 20:20 19.20 17.45 05:00 1.96 19:55 2.41 2.21 05:00 5.245 19:55 9.089 7.410 7.410 -
01/08/2021 06:00 13.87 19:40 18.78 16.98 04:30 1.90 19:50 2.42 2.20 05:55 4.584 19:50 8.928 7.124 7.124 0.22
01/09/2021 06:10 13.72 14:15 18.94 16.66 05:55 1.86 20:20 2.43 2.22 06:00 4.446 14:15 9.000 7.024 7.024 -
01/10/2021 06:55 13.42 14:45 18.73 16.43 06:50 1.95 12:10 2.48 2.26 06:55 4.467 14:45 9.088 7.013 7.013 0.07
01/11/2021 05:50 12.78 22:10 20.54 17.20 05:35 1.87 21:45 2.40 2.22 05:45 4.081 22:10 10.050 7.404 7.404 1.06
01/12/2021 02:35 17.23 20:55 25.96 22.11 02:15 2.25 22:50 2.55 2.40 02:35 7.359 21:25 14.490 11.194 11.194 2.10
01/13/2021 06:30 19.73 00:00 24.52 21.20 04:30 2.23 02:05 2.62 2.42 07:10 9.008 02:05 13.850 10.623 10.623 0.09
01/14/2021 05:50 16.52 20:00 20.39 18.82 03:50 2.07 15:15 2.37 2.25 03:50 6.481 19:35 9.614 8.370 8.370 0.01
01/15/2021 05:10 15.71 19:20 19.61 18.22 04:35 1.97 20:05 2.38 2.21 04:35 5.693 15:20 9.284 7.883 7.883 0.09
01/16/2021 06:00 14.58 13:55 19.74 17.41 06:40 1.95 13:15 2.38 2.21 06:40 5.103 14:00 9.304 7.398 7.398 -
01/17/2021 07:30 14.19 15:00 19.11 17.06 04:15 1.90 14:20 2.36 2.18 08:15 4.824 14:20 8.878 7.111 7.111 0.10
01/18/2021 05:55 13.84 20:35 18.62 16.73 05:55 1.90 21:30 2.32 2.14 05:55 4.554 21:30 8.460 6.806 6.806 -
01/19/2021 05:15 13.43 21:30 18.41 16.44 05:00 1.86 20:15 2.30 2.10 05:10 4.290 20:15 8.208 6.509 6.509 0.01
01/20/2021 06:10 13.29 20:30 18.02 16.14 05:05 1.81 21:20 2.27 2.08 06:10 4.100 20:30 7.895 6.285 6.285 -
01/21/2021 05:00 13.14 21:15 17.92 16.12 04:40 1.71 20:50 2.29 2.07 04:40 3.875 21:20 7.922 6.233 6.233 0.11
01/22/2021 05:20 12.92 21:15 17.30 15.83 04:20 1.74 20:05 2.22 2.05 04:20 3.854 20:05 7.304 6.032 6.032 -
01/23/2021 05:55 12.36 13:20 17.64 15.55 05:00 1.70 12:05 2.25 2.04 05:50 3.501 13:10 7.522 5.860 5.860 -
01/24/2021 05:35 12.33 14:10 18.07 15.71 06:25 1.72 13:45 2.28 2.07 06:25 3.535 13:45 7.941 6.062 6.062 0.16
01/25/2021 05:40 12.17 14:15 17.24 15.51 05:25 1.73 19:35 2.24 2.06 05:40 3.469 19:35 7.227 5.887 5.887 0.04
01/26/2021 05:05 11.70 21:35 17.24 15.21 05:05 1.62 21:25 2.23 2.01 05:05 3.051 21:25 7.267 5.615 5.615 -
01/27/2021 05:40 12.02 20:50 17.30 15.28 05:20 1.72 20:40 2.22 2.02 05:35 3.390 20:40 7.315 5.645 5.645 0.14
01/28/2021 05:20 11.99 21:15 17.13 15.38 04:15 1.69 20:40 2.16 1.97 05:20 3.309 20:40 6.997 5.562 5.562 0.24
01/29/2021 05:25 11.98 20:20 16.76 15.12 05:00 1.70 10:50 2.17 2.00 05:25 3.336 20:15 6.746 5.508 5.508 0.03
01/30/2021 07:05 12.01 14:15 17.38 15.12 06:55 1.72 13:55 2.23 2.02 07:00 3.382 14:15 7.397 5.586 5.586 0.07
01/31/2021 06:40 11.65 14:15 17.75 15.19 06:40 1.64 14:00 2.23 2.00 06:40 3.067 14:00 7.595 5.602 5.602 0.12
02/01/2021 05:15 12.51 20:40 18.75 15.78 04:05 1.78 20:35 2.32 2.04 04:15 3.686 20:35 8.545 5.983 5.983 0.82
02/02/2021 05:50 13.45 21:05 18.61 16.71 05:50 1.79 13:55 2.34 2.13 05:50 4.109 21:05 8.484 6.760 6.760 0.31
02/03/2021 05:45 13.41 21:00 17.71 16.13 04:50 1.84 20:45 2.27 2.07 05:10 4.247 21:00 7.711 6.233 6.233 0.06
02/04/2021 05:40 12.72 20:40 17.42 15.61 04:40 1.73 21:40 2.25 2.05 04:40 3.719 21:00 7.422 5.913 5.913 0.07
02/05/2021 05:10 12.56 20:20 16.81 15.39 04:45 1.70 12:35 2.21 2.03 06:05 3.612 19:55 6.892 5.722 5.722 0.01
02/06/2021 06:35 12.04 13:35 17.62 15.39 05:30 1.69 16:35 2.26 2.03 06:35 3.342 13:40 7.479 5.763 5.763 0.01
02/07/2021 07:05 11.88 14:25 17.95 15.30 05:45 1.65 13:00 2.26 2.01 05:45 3.194 13:05 7.785 5.673 5.673 -
02/08/2021 05:20 11.64 20:55 17.01 15.09 05:10 1.62 20:10 2.19 1.97 05:10 3.064 20:55 7.029 5.428 5.428 -
02/09/2021 05:00 11.60 22:05 16.98 14.87 05:00 1.63 21:10 2.22 1.96 05:00 3.039 21:10 7.095 5.297 5.297 -
02/10/2021 04:55 11.72 21:05 16.76 14.79 04:50 1.68 20:25 2.21 1.99 04:55 3.182 21:00 6.887 5.328 5.328 -
02/11/2021 05:20 11.50 21:05 16.68 14.70 05:25 1.63 20:55 2.19 1.98 05:25 2.993 21:00 6.841 5.251 5.251 -
02/12/2021 05:35 11.14 20:50 16.13 14.56 05:30 1.57 15:10 2.17 1.96 05:35 2.769 15:10 6.360 5.143 5.143 -
02/13/2021 05:35 11.33 15:25 16.84 14.54 05:25 1.59 14:55 2.23 1.95 05:30 2.860 14:55 6.882 5.119 5.119 0.08
02/14/2021 07:15 11.14 14:30 17.67 14.91 05:55 1.61 14:45 2.26 1.98 07:10 2.856 14:45 7.605 5.430 5.430 0.71
02/15/2021 06:15 13.82 15:20 21.16 17.71 07:40 1.84 15:05 2.43 2.19 06:00 4.501 15:15 10.610 7.624 7.624 0.78
02/16/2021 05:35 15.50 00:00 19.03 17.50 06:05 1.99 14:25 2.34 2.18 06:05 5.630 00:00 8.677 7.339 7.339 0.07
02/17/2021 05:00 13.19 20:10 17.73 16.16 04:05 1.78 19:40 2.28 2.09 04:50 4.059 21:10 7.691 6.323 6.323 -
02/18/2021 05:30 12.74 21:45 17.62 15.85 03:35 1.76 19:05 2.28 2.07 05:30 3.854 21:50 7.504 6.068 6.068 0.09
02/19/2021 06:10 12.70 20:55 17.40 15.68 05:55 1.79 12:25 2.22 2.06 06:10 3.791 21:00 7.251 5.944 5.944 0.17
02/20/2021 07:10 12.50 13:45 17.67 15.50 06:00 1.72 13:30 2.27 2.05 07:00 3.600 13:40 7.662 5.872 5.872 0.07
02/21/2021 06:40 12.03 13:30 17.49 15.36 05:30 1.72 20:40 2.26 2.03 06:35 3.373 13:40 7.357 5.750 5.750 0.42
02/22/2021 06:05 14.40 14:55 22.12 18.47 06:00 1.89 14:45 2.54 2.22 06:00 4.851 14:45 11.770 8.137 8.137 0.98
02/23/2021 05:50 14.56 23:20 19.53 17.30 03:35 1.92 14:45 2.29 2.14 05:30 5.035 23:20 8.682 7.110 7.110 0.27
02/24/2021 05:30 14.16 00:00 18.88 17.00 05:25 1.90 21:55 2.37 2.15 05:30 4.704 21:55 8.636 6.947 6.947 -
02/25/2021 05:05 13.98 20:50 18.57 16.91 05:00 1.84 21:40 2.32 2.13 05:00 4.484 20:55 8.388 6.856 6.856 0.18
02/26/2021 06:00 13.70 20:35 17.76 16.44 05:20 1.84 21:30 2.30 2.13 05:20 4.422 21:30 7.735 6.568 6.568 0.10
02/27/2021 05:30 13.07 13:05 18.42 16.16 03:45 1.79 12:20 2.33 2.09 05:30 4.046 12:20 8.260 6.344 6.344 0.02
02/28/2021 06:35 12.53 13:40 18.31 15.87 06:25 1.80 13:50 2.32 2.10 06:35 3.740 13:50 8.267 6.207 6.207 0.02
03/01/2021 05:40 12.51 21:40 17.21 15.50 04:15 1.74 19:40 2.22 2.03 05:35 3.647 21:30 7.218 5.796 5.796 -
03/02/2021 05:40 11.69 21:25 17.53 15.13 05:25 1.63 20:55 2.24 2.00 05:40 3.084 21:25 7.434 5.540 5.540 -
03/03/2021 05:20 12.34 20:55 17.16 15.47 05:35 1.72 20:45 2.22 2.05 05:35 3.504 22:35 7.216 5.837 5.837 -
03/04/2021 05:45 12.00 21:30 17.49 15.24 05:45 1.71 21:45 2.22 2.02 05:45 3.345 21:30 7.378 5.639 5.639 0.20
03/05/2021 05:25 12.14 20:30 16.79 15.23 04:30 1.71 13:30 2.17 2.01 05:35 3.408 20:30 6.775 5.589 5.589 0.05
03/06/2021 05:50 11.79 14:10 17.35 15.16 07:15 1.65 13:25 2.21 2.00 07:15 3.158 13:25 7.283 5.540 5.540 -
03/07/2021 06:10 11.77 13:05 17.45 15.13 06:30 1.60 12:00 2.17 1.96 06:30 3.048 13:20 7.177 5.428 5.428 0.04
03/08/2021 05:55 11.64 21:40 16.91 14.94 04:50 1.54 21:00 2.21 1.96 04:50 2.933 21:00 6.918 5.346 5.346 -
03/09/2021 06:10 11.23 21:50 16.83 14.78 04:55 1.62 22:10 2.22 1.99 06:10 2.893 22:10 7.025 5.317 5.317 0.01
03/10/2021 05:35 11.41 21:20 16.62 14.76 05:00 1.59 21:10 2.18 1.99 05:15 2.948 21:10 6.762 5.309 5.309 -
03/11/2021 05:05 11.22 21:10 16.58 14.70 05:00 1.60 22:00 2.16 1.97 05:05 2.831 21:10 6.642 5.229 5.229 -
Page 619 of 1163
99
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 05:20 11.41 20:40 16.19 14.56 04:00 1.59 20:40 2.18 1.97 05:15 2.994 20:40 6.531 5.156 5.156 -
03/13/2021 05:40 11.03 14:05 16.85 14.56 05:20 1.58 13:25 2.29 1.97 05:40 2.744 13:25 7.181 5.186 5.186 -
03/14/2021 07:25 11.12 21:35 17.07 14.82 07:15 1.58 14:40 2.25 1.97 07:25 2.765 14:40 7.112 5.332 5.332 0.30
03/15/2021 04:05 11.40 21:25 16.75 14.80 04:00 1.53 19:20 2.22 1.95 04:00 2.808 21:25 6.922 5.257 5.257 -
03/16/2021 03:50 11.30 21:40 16.70 14.67 03:30 1.60 20:45 2.20 1.97 03:50 2.864 20:45 6.863 5.210 5.210 -
03/17/2021 05:05 11.18 21:45 16.32 14.56 04:55 1.56 21:45 2.12 1.94 05:05 2.756 21:45 6.419 5.070 5.070 -
03/18/2021 05:00 11.25 20:30 16.44 14.50 03:30 1.58 20:00 2.15 1.93 05:05 2.861 20:40 6.554 5.017 5.017 0.11
03/19/2021 05:10 11.00 19:50 16.06 14.49 05:05 1.55 19:30 2.16 1.94 05:10 2.694 19:30 6.375 5.050 5.050 0.03
03/20/2021 04:45 10.98 13:05 16.71 14.54 04:30 1.55 11:15 2.16 1.95 04:35 2.689 12:15 6.743 5.118 5.118 0.17
03/21/2021 06:10 10.83 12:50 16.92 14.53 06:00 1.52 12:20 2.18 1.94 06:10 2.567 13:55 6.862 5.109 5.109 0.07
03/22/2021 05:05 11.04 21:20 16.60 14.60 05:10 1.54 20:30 2.17 1.96 05:10 2.669 21:20 6.736 5.158 5.158 0.11
03/23/2021 03:45 11.25 21:05 16.62 14.54 04:25 1.55 21:00 2.16 1.94 04:50 2.775 21:05 6.715 5.075 5.075 -
03/24/2021 03:50 11.10 21:40 17.30 14.62 03:50 1.57 21:35 2.22 1.94 03:50 2.740 21:35 7.303 5.122 5.122 0.34
03/25/2021 04:55 12.42 20:55 17.17 15.41 04:50 1.74 11:30 2.19 2.01 04:55 3.573 20:55 7.138 5.675 5.675 0.27
03/26/2021 04:05 11.72 12:40 16.52 14.97 04:05 1.63 13:30 2.15 1.97 04:05 3.079 12:40 6.532 5.347 5.347 -
03/27/2021 05:35 11.29 12:05 17.15 14.76 05:25 1.58 11:30 2.20 1.96 05:30 2.834 11:40 7.086 5.241 5.241 -
03/28/2021 05:15 11.07 16:35 17.63 14.90 05:10 1.55 16:10 2.22 1.94 05:15 2.709 16:10 7.464 5.326 5.326 0.37
03/29/2021 04:25 11.44 21:20 16.96 14.93 04:20 1.62 21:10 2.18 1.96 04:25 2.952 21:20 6.974 5.326 5.326 -
03/30/2021 04:50 11.60 21:40 16.83 14.61 04:30 1.63 21:25 2.18 1.95 04:30 3.059 21:25 6.885 5.128 5.128 -
03/31/2021 04:45 11.60 22:00 16.52 14.76 04:45 1.60 21:00 2.12 1.94 04:45 2.977 21:35 6.510 5.181 5.181 -
04/01/2021 04:10 11.30 22:05 16.36 14.50 04:00 1.56 22:10 2.15 1.93 04:00 2.807 22:10 6.527 5.010 5.010 -
04/02/2021 04:35 11.18 20:45 15.97 14.36 04:10 1.55 20:05 2.10 1.91 04:35 2.731 20:45 6.085 4.894 4.894 -
04/03/2021 05:55 10.77 12:25 16.86 14.40 05:50 1.51 11:10 2.18 1.92 05:50 2.539 11:20 6.824 4.981 4.981 -
04/04/2021 06:20 10.76 13:10 16.87 14.28 06:15 1.53 11:00 2.15 1.91 06:20 2.560 12:55 6.813 4.902 4.902 -
04/05/2021 04:35 10.24 21:40 16.04 14.14 04:45 1.41 20:30 2.09 1.88 04:45 2.208 21:25 6.148 4.761 4.761 -
04/06/2021 04:30 10.92 21:35 15.96 14.26 04:40 1.52 19:35 2.11 1.90 04:40 2.593 12:35 6.099 4.844 4.844 -
04/07/2021 05:00 10.81 19:35 15.90 14.13 05:20 1.53 21:40 2.09 1.89 04:55 2.591 20:30 6.085 4.747 4.747 0.22
04/08/2021 04:55 10.94 22:00 15.88 14.24 04:45 1.50 21:25 2.09 1.88 05:00 2.572 22:00 6.095 4.766 4.766 -
04/09/2021 04:20 10.96 11:55 15.75 14.14 04:25 1.51 11:35 2.07 1.89 04:30 2.588 11:35 5.958 4.742 4.742 0.03
04/10/2021 07:00 10.81 13:15 16.58 14.20 06:50 1.50 12:20 2.16 1.90 06:50 2.531 12:25 6.696 4.815 4.815 0.02
04/11/2021 05:55 10.47 12:25 16.83 14.27 05:45 1.46 11:50 2.18 1.90 05:50 2.353 11:50 6.848 4.882 4.882 -
04/12/2021 04:35 10.70 20:45 16.06 14.16 04:40 1.47 20:35 2.13 1.90 04:40 2.446 20:35 6.291 4.801 4.801 -
04/13/2021 04:25 10.45 21:55 16.21 14.15 04:10 1.47 22:15 2.19 1.89 04:25 2.348 22:15 6.512 4.780 4.780 -
04/14/2021 04:45 10.68 22:20 16.41 14.25 04:50 1.47 22:20 2.17 1.90 04:50 2.430 22:20 6.640 4.842 4.829 -
10/01/2020 - - - - - - - - - - - - - - - - -
10/02/2020 06:10 10.36 12:20 14.87 13.90 05:45 1.43 20:45 2.08 1.92 06:00 2.308 20:45 5.511 4.692 3.633 -
10/03/2020 05:55 9.55 12:30 15.94 13.30 05:55 1.37 12:45 2.18 1.86 06:00 1.923 13:05 6.362 4.353 4.353 0.01
10/04/2020 06:50 8.86 11:45 15.29 12.91 05:00 1.25 13:20 2.14 1.79 05:30 1.623 13:20 5.804 4.067 4.067 0.01
10/05/2020 04:35 9.06 20:25 15.52 13.25 03:55 1.27 19:55 2.15 1.85 04:35 1.677 20:15 5.954 4.300 4.300 -
10/06/2020 04:40 9.51 21:15 15.69 13.31 04:35 1.38 19:55 2.12 1.85 04:40 1.921 21:05 6.064 4.320 4.320 -
10/07/2020 05:00 9.68 20:40 15.41 13.24 04:25 1.27 21:25 2.13 1.85 04:25 1.921 21:25 5.927 4.269 4.269 -
10/08/2020 05:10 9.84 20:20 15.27 13.38 05:05 1.38 20:20 2.10 1.85 05:05 2.023 20:20 5.793 4.335 4.335 -
10/09/2020 04:10 10.04 20:00 14.98 13.35 05:20 1.41 13:45 2.09 1.84 05:20 2.144 13:45 5.569 4.291 4.291 0.64
10/10/2020 05:25 12.47 13:10 17.36 15.27 06:20 1.75 11:35 2.25 2.04 05:25 3.652 13:00 7.415 5.669 5.669 1.04
10/11/2020 06:50 9.72 14:35 16.32 13.82 06:45 1.39 19:40 2.18 1.89 06:45 2.016 14:20 6.555 4.680 4.680 0.53
10/12/2020 04:40 10.16 11:00 16.74 14.06 04:35 1.40 11:00 2.27 1.92 04:35 2.160 11:00 7.124 4.841 4.841 -
10/13/2020 04:05 10.98 09:20 17.83 14.88 03:40 1.54 09:05 2.28 2.00 04:05 2.710 09:15 7.813 5.426 5.426 0.61
10/14/2020 05:00 10.86 21:05 16.11 14.10 03:35 1.55 21:05 2.19 1.94 04:55 2.646 21:05 6.534 4.856 4.856 -
10/15/2020 04:40 10.36 21:10 16.03 13.96 04:10 1.47 20:20 2.16 1.93 04:40 2.376 21:00 6.381 4.791 4.791 -
10/16/2020 04:40 10.41 14:05 15.32 13.77 04:30 1.47 13:05 2.12 1.89 04:35 2.338 13:05 5.820 4.601 4.601 -
10/17/2020 06:20 10.29 12:55 16.18 13.75 05:05 1.48 13:45 2.17 1.88 06:20 2.306 13:45 6.416 4.591 4.591 0.01
10/18/2020 05:30 9.55 13:00 16.00 13.42 05:05 1.34 11:50 2.13 1.83 05:20 1.908 12:55 6.275 4.349 4.349 0.03
10/19/2020 04:50 9.50 20:20 15.84 13.59 04:50 1.37 20:45 2.12 1.86 04:50 1.909 20:45 6.172 4.481 4.481 0.05
10/20/2020 04:40 10.29 20:50 15.97 13.83 04:05 1.44 19:40 2.15 1.90 04:30 2.316 20:40 6.257 4.664 4.664 -
10/21/2020 05:30 10.14 20:50 15.99 13.79 04:05 1.44 20:35 2.19 1.90 04:05 2.272 20:35 6.385 4.646 4.646 0.01
10/22/2020 05:15 10.21 21:05 15.82 13.59 04:55 1.47 20:40 2.14 1.89 05:00 2.289 21:10 6.204 4.511 4.511 -
10/23/2020 05:05 10.24 21:15 15.91 13.82 05:10 1.45 21:05 2.19 1.91 05:10 2.260 21:05 6.351 4.676 4.676 0.20
10/24/2020 05:55 10.22 12:30 16.44 13.88 05:55 1.46 11:20 2.18 1.90 05:55 2.254 12:25 6.654 4.710 4.710 0.02
10/25/2020 06:00 9.57 13:40 16.00 13.43 05:50 1.34 13:45 2.16 1.84 05:50 1.892 13:45 6.373 4.388 4.388 -
10/26/2020 05:10 9.51 20:50 16.07 13.65 04:55 1.36 19:35 2.13 1.86 04:55 1.908 20:55 6.268 4.525 4.525 -
10/27/2020 04:30 10.39 21:00 16.09 13.84 04:15 1.46 19:20 2.15 1.89 04:25 2.314 20:55 6.316 4.640 4.640 -
10/28/2020 04:20 10.18 20:05 15.82 13.48 04:10 1.44 19:30 2.14 1.85 04:10 2.226 19:50 6.167 4.373 4.373 -
10/29/2020 04:40 10.19 21:10 16.02 13.81 04:45 1.47 21:20 2.16 1.89 04:45 2.279 21:20 6.339 4.630 4.630 -
10/30/2020 04:50 10.23 20:15 15.51 13.82 05:00 1.42 14:25 2.11 1.90 05:00 2.223 19:40 5.947 4.648 4.648 0.10
10/31/2020 05:40 9.99 12:25 16.54 13.57 05:40 1.43 12:35 2.20 1.87 05:40 2.143 12:35 6.774 4.478 4.478 -
11/01/2020 06:05 9.24 13:30 16.03 13.22 06:15 1.23 12:10 2.14 1.81 06:15 1.655 13:40 6.192 4.240 4.240 -
11/02/2020 04:50 9.16 20:20 15.55 13.45 04:45 1.32 20:15 2.11 1.84 04:45 1.754 20:15 5.954 4.371 4.371 -
11/03/2020 06:15 10.06 12:40 16.87 14.32 04:55 1.41 18:00 2.22 1.94 04:55 2.147 12:50 6.964 5.053 5.053 0.83
11/04/2020 05:25 11.11 21:00 16.21 14.44 05:25 1.60 20:30 2.19 1.98 05:25 2.801 21:00 6.521 5.124 5.124 0.09
11/05/2020 05:55 11.15 21:35 16.49 14.36 06:55 1.55 21:20 2.23 1.95 06:55 2.742 21:20 6.828 5.024 5.024 0.34
11/06/2020 06:10 11.93 20:45 16.19 14.68 04:05 1.70 10:45 2.18 1.99 05:10 3.349 20:35 6.492 5.255 5.255 0.10
11/07/2020 05:25 10.91 13:30 16.58 14.28 05:20 1.53 18:00 2.22 1.94 05:20 2.624 13:30 6.871 4.991 4.991 0.07
11/08/2020 07:30 10.11 12:45 16.18 13.89 06:10 1.45 15:10 2.16 1.90 07:25 2.233 12:35 6.444 4.703 4.703 0.01
11/09/2020 05:20 9.92 21:15 16.04 13.85 05:15 1.40 20:20 2.17 1.89 05:20 2.080 21:15 6.404 4.665 4.665 0.04
Page 620 of 1163
100
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/10/2020 06:00 10.77 20:35 16.09 14.12 04:45 1.47 20:35 2.16 1.93 04:45 2.488 20:35 6.429 4.852 4.852 0.03
11/11/2020 05:10 10.76 21:50 16.04 14.14 04:25 1.53 20:35 2.18 1.95 06:10 2.633 20:40 6.389 4.916 4.916 -
11/12/2020 06:25 10.81 21:35 16.16 14.09 06:05 1.56 21:05 2.18 1.94 06:30 2.653 21:05 6.455 4.867 4.867 0.16
11/13/2020 04:35 11.55 19:55 16.00 14.61 04:30 1.64 12:10 2.17 1.98 04:30 3.035 12:15 6.359 5.205 5.205 0.38
11/14/2020 07:20 10.71 20:15 17.29 14.57 06:00 1.54 19:50 2.25 1.96 07:25 2.575 19:50 7.364 5.187 5.187 0.47
11/15/2020 07:10 11.02 14:05 16.68 14.50 04:45 1.50 14:25 2.20 1.94 07:05 2.727 14:25 6.876 5.070 5.070 0.19
11/16/2020 05:50 10.67 15:05 17.42 14.91 05:10 1.50 14:30 2.31 1.97 05:45 2.491 14:45 7.607 5.391 5.391 0.31
11/17/2020 05:10 11.84 21:30 17.46 15.12 04:50 1.67 21:30 2.25 2.02 05:10 3.199 21:30 7.515 5.588 5.588 0.20
11/18/2020 05:50 11.69 20:55 17.15 15.18 05:50 1.63 18:50 2.23 2.01 05:50 3.067 20:25 7.174 5.585 5.585 0.30
11/19/2020 04:05 12.40 14:50 17.15 15.21 04:50 1.62 13:55 2.19 2.00 04:50 3.372 14:30 7.047 5.554 5.554 0.50
11/20/2020 05:35 11.63 19:50 16.47 14.88 05:35 1.65 13:35 2.14 1.97 05:35 3.087 20:00 6.471 5.296 5.296 0.01
11/21/2020 06:20 11.47 13:10 17.12 14.87 07:25 1.59 13:20 2.21 1.98 06:20 2.937 13:20 7.129 5.381 5.381 -
11/22/2020 07:05 10.67 13:30 16.91 14.44 07:20 1.50 12:40 2.20 1.92 07:20 2.479 13:15 6.862 5.025 5.025 0.21
11/23/2020 05:35 11.20 21:25 16.82 14.88 04:20 1.52 20:20 2.19 1.96 04:25 2.739 21:25 6.946 5.306 5.306 0.14
11/24/2020 05:45 11.73 21:05 17.02 15.05 05:15 1.55 21:00 2.26 1.99 05:25 3.088 21:00 7.247 5.479 5.479 0.21
11/25/2020 05:50 11.73 21:00 16.65 15.02 04:35 1.64 20:05 2.21 2.00 05:50 3.168 20:05 6.856 5.466 5.466 0.05
11/26/2020 06:10 10.77 13:55 17.74 14.44 06:00 1.51 14:50 2.27 1.94 06:00 2.549 14:50 7.671 5.081 5.081 0.02
11/27/2020 06:00 10.44 13:25 16.34 14.03 06:25 1.47 13:55 2.17 1.90 06:00 2.392 13:55 6.531 4.751 4.751 -
11/28/2020 06:50 10.98 14:40 16.69 14.29 05:35 1.53 14:00 2.18 1.92 06:50 2.671 14:40 6.836 4.941 4.941 0.05
11/29/2020 05:55 10.45 14:40 16.95 14.35 05:50 1.48 20:00 2.24 1.93 05:50 2.379 14:40 6.986 5.026 5.026 -
11/30/2020 05:00 11.50 20:35 16.33 14.78 05:00 1.62 19:00 2.17 1.98 05:00 2.979 20:50 6.568 5.275 5.275 0.36
12/01/2020 05:55 11.03 11:45 16.63 14.38 04:35 1.52 20:20 2.21 1.93 04:35 2.683 20:45 6.729 4.976 4.976 -
12/02/2020 05:35 11.03 21:45 16.47 14.49 05:20 1.57 14:00 2.17 1.96 05:35 2.734 21:40 6.654 5.105 5.105 0.01
12/03/2020 05:55 11.10 12:25 17.40 14.44 05:30 1.58 20:05 2.19 1.95 05:55 2.749 20:05 6.499 5.058 5.058 -
12/04/2020 05:50 11.06 21:20 15.98 14.38 05:40 1.58 13:10 2.12 1.96 05:50 2.742 21:20 6.239 5.044 5.044 -
12/05/2020 06:20 10.64 14:30 16.66 14.31 06:15 1.54 14:00 2.25 1.96 06:15 2.551 14:00 6.989 5.062 5.062 0.03
12/06/2020 06:15 10.17 14:05 16.49 13.92 06:05 1.42 13:20 2.20 1.90 06:15 2.199 13:20 6.728 4.736 4.736 0.03
12/07/2020 05:05 10.23 21:00 15.70 13.80 04:55 1.42 15:05 2.15 1.90 05:00 2.231 20:55 6.143 4.633 4.633 -
12/08/2020 05:05 10.45 21:15 18.27 14.69 04:55 1.44 21:00 2.34 1.97 05:05 2.320 21:00 8.274 5.324 5.324 0.87
12/09/2020 06:00 13.19 00:00 16.92 15.67 05:55 1.85 14:05 2.24 2.08 05:55 4.156 21:05 7.047 6.010 6.010 0.17
12/10/2020 04:40 11.79 22:20 16.94 15.10 05:25 1.65 19:45 2.23 2.02 04:40 3.180 19:45 7.103 5.572 5.572 0.07
12/11/2020 06:20 11.83 20:15 16.23 14.78 05:20 1.62 17:30 2.18 1.98 05:20 3.139 19:00 6.488 5.269 5.269 0.02
12/12/2020 06:45 10.99 14:15 16.70 14.43 05:35 1.54 16:05 2.20 1.95 06:45 2.648 14:00 6.820 5.072 5.072 0.01
12/13/2020 07:00 11.36 14:40 17.46 14.70 05:35 1.59 12:40 2.26 1.98 07:00 2.883 14:35 7.472 5.294 5.294 0.24
12/14/2020 05:05 10.98 21:05 16.48 14.61 04:00 1.52 22:05 2.20 1.96 05:00 2.643 20:20 6.687 5.193 5.193 0.05
12/15/2020 05:15 11.34 18:05 17.41 15.17 05:15 1.59 18:05 2.27 2.02 05:15 2.859 18:05 7.559 5.649 5.649 0.58
12/16/2020 05:20 12.13 19:20 17.56 15.43 05:15 1.70 19:20 2.31 2.05 05:15 3.383 19:20 7.757 5.851 5.851 0.39
12/17/2020 05:00 11.97 21:00 16.83 15.23 04:20 1.64 21:20 2.26 2.04 05:00 3.221 21:20 7.025 5.695 5.695 0.08
12/18/2020 05:55 12.07 20:30 16.67 15.10 05:50 1.69 20:25 2.24 2.04 05:50 3.344 20:25 6.966 5.605 5.605 0.25
12/19/2020 06:45 11.75 23:05 16.97 14.97 06:35 1.63 12:15 2.25 2.02 06:35 3.108 22:55 7.177 5.517 5.517 0.37
12/20/2020 07:15 12.35 15:05 17.34 15.39 05:30 1.69 14:50 2.27 2.07 06:05 3.586 15:05 7.497 5.840 5.840 0.04
12/21/2020 05:50 13.24 20:40 20.90 16.91 05:50 1.82 19:50 2.47 2.18 05:50 4.093 20:25 10.510 7.096 7.096 1.07
12/22/2020 06:20 14.63 00:00 19.43 16.91 05:55 1.93 00:00 2.39 2.17 05:55 5.040 00:00 9.283 6.948 6.948 -
12/23/2020 05:20 13.11 13:30 17.30 15.91 05:15 1.83 20:15 2.29 2.11 05:20 4.091 13:30 7.467 6.237 6.237 -
12/24/2020 06:10 12.51 13:50 17.80 15.61 05:05 1.80 13:15 2.32 2.09 06:10 3.770 13:15 7.880 6.040 6.040 -
12/25/2020 07:00 11.89 14:15 16.83 14.97 08:30 1.71 14:10 2.24 2.01 07:05 3.332 14:10 7.078 5.461 5.461 0.49
12/26/2020 07:15 11.74 14:30 17.66 15.18 07:15 1.62 15:40 2.28 2.02 07:15 3.073 13:55 7.676 5.642 5.642 0.02
12/27/2020 07:25 11.99 14:10 18.14 15.40 06:10 1.71 14:00 2.26 2.03 07:25 3.329 14:10 7.975 5.789 5.789 0.13
12/28/2020 06:20 11.70 13:50 17.22 15.08 06:20 1.67 13:35 2.27 2.01 06:20 3.150 13:40 7.327 5.544 5.544 -
12/29/2020 05:50 11.72 21:10 17.06 14.94 05:45 1.64 20:55 2.22 1.99 05:45 3.113 21:00 7.115 5.408 5.408 0.14
12/30/2020 05:20 13.03 15:40 17.85 16.24 03:30 1.80 12:50 2.30 2.11 05:15 3.981 15:15 7.838 6.413 6.413 0.78
12/31/2020 06:35 14.05 19:20 18.26 16.52 04:55 1.80 19:10 2.33 2.08 06:35 4.403 19:10 8.258 6.476 6.476 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 1088.339 30.65
Average 15.13 2.00 5.588
Page 621 of 1163
101
Page 622 of 1163
102
AUB_A3_40834
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.17 3.55 0.282
Minimum 1.43 2.13 0.096
Maximum 3.13 4.25 0.566
Min Time 09/27/2020 2:00:00 AM 10/02/2020 3:00:00 AM 09/25/2020 2:00:00 AM
Max Time 01/12/2021 9:00:00 AM 01/12/2021 9:00:00 AM 01/12/2021 9:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.782
VFINAL (ft/s) 99.782
QFINAL (MGD - Total MG) 99.782
Pipe Round (18 in H)
Silt 0.00 (in)
Page 623 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A3_40834
Page 624 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Scattergraph Report
AUB_A3_40834
Page 625 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A3_40834Pipe: Round (18 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 05:35 2.01 15:25 2.56 2.24 02:35 3.60 15:30 3.99 3.77 05:35 0.252 15:30 0.398 0.309 0.309 0.51
01/02/2021 04:35 2.02 20:50 3.21 2.47 04:35 3.60 20:50 4.29 3.89 04:35 0.254 20:50 0.592 0.372 0.372 1.69
01/03/2021 04:45 2.37 00:05 3.01 2.56 23:25 3.82 00:05 4.20 3.98 05:00 0.346 00:05 0.529 0.396 0.396 0.65
01/04/2021 03:05 2.31 11:55 2.74 2.49 02:35 3.79 07:40 4.11 3.96 03:05 0.328 11:55 0.449 0.379 0.379 0.48
01/05/2021 03:00 2.24 14:05 2.69 2.46 04:25 3.77 20:45 4.10 3.95 03:00 0.309 20:45 0.438 0.372 0.372 0.52
01/06/2021 02:50 2.33 18:50 2.74 2.54 03:10 3.82 10:40 4.10 3.99 03:50 0.337 18:50 0.446 0.394 0.394 0.22
01/07/2021 23:45 2.30 09:00 2.75 2.47 23:35 3.77 10:05 4.09 3.96 23:35 0.327 09:00 0.447 0.375 0.375 -
01/08/2021 04:30 2.19 17:20 2.68 2.42 23:10 3.74 09:15 4.09 3.91 23:45 0.300 09:15 0.425 0.360 0.360 0.22
01/09/2021 02:35 2.16 10:40 2.67 2.39 01:10 3.68 11:15 3.98 3.85 02:35 0.287 10:40 0.417 0.347 0.347 -
01/10/2021 04:35 2.17 09:35 2.67 2.41 04:10 3.72 14:05 4.05 3.88 04:10 0.292 14:05 0.425 0.354 0.354 0.07
01/11/2021 00:55 2.19 10:20 2.98 2.53 04:45 3.74 10:15 4.19 3.96 04:35 0.297 10:20 0.518 0.391 0.391 1.06
01/12/2021 00:00 2.49 18:55 3.20 2.86 00:35 3.91 18:55 4.32 4.13 00:00 0.379 18:55 0.593 0.483 0.483 2.10
01/13/2021 04:05 2.51 00:35 2.97 2.75 21:40 3.94 00:30 4.21 4.08 04:55 0.386 00:35 0.519 0.450 0.450 0.09
01/14/2021 03:35 2.46 12:50 2.92 2.65 03:05 3.90 12:55 4.18 4.03 03:45 0.369 12:50 0.500 0.421 0.421 0.01
01/15/2021 04:35 2.43 13:00 2.86 2.65 03:15 3.88 13:05 4.14 4.02 04:35 0.361 13:05 0.484 0.420 0.420 0.09
01/16/2021 03:20 2.43 13:10 2.95 2.65 07:15 3.82 12:10 4.12 4.00 04:40 0.356 13:05 0.502 0.420 0.420 -
01/17/2021 05:15 2.44 12:55 2.92 2.64 04:00 3.79 11:20 4.11 3.98 05:20 0.360 12:50 0.489 0.414 0.414 0.10
01/18/2021 02:15 2.36 13:25 2.85 2.61 02:50 3.83 12:15 4.10 3.98 03:25 0.339 13:30 0.474 0.408 0.408 -
01/19/2021 02:00 2.32 09:50 2.70 2.54 03:05 3.80 15:20 4.04 3.95 03:05 0.331 15:40 0.434 0.390 0.390 0.01
01/20/2021 03:00 2.30 12:25 2.80 2.50 03:15 3.79 12:25 4.08 3.92 02:05 0.325 12:30 0.463 0.378 0.378 -
01/21/2021 03:10 2.25 13:20 2.69 2.46 03:50 3.72 13:45 4.04 3.89 03:10 0.310 13:45 0.430 0.366 0.366 0.11
01/22/2021 01:45 2.23 08:10 2.74 2.47 03:35 3.72 10:45 4.02 3.87 01:45 0.303 08:10 0.436 0.365 0.365 -
01/23/2021 03:05 2.22 14:00 2.78 2.43 03:05 3.67 14:00 3.99 3.84 03:05 0.297 14:00 0.447 0.355 0.355 -
01/24/2021 04:40 2.21 11:45 2.81 2.45 03:20 3.67 12:00 4.02 3.85 03:20 0.299 12:00 0.455 0.359 0.359 0.16
01/25/2021 01:55 2.19 12:50 2.86 2.44 04:40 3.62 12:55 4.11 3.83 04:35 0.288 12:55 0.478 0.357 0.357 0.04
01/26/2021 04:05 2.24 22:30 2.70 2.42 04:20 3.63 22:30 3.95 3.82 04:10 0.298 22:30 0.424 0.350 0.350 -
01/27/2021 02:20 2.23 12:40 2.65 2.40 01:55 3.63 10:35 3.97 3.81 03:15 0.296 12:45 0.412 0.346 0.346 0.14
01/28/2021 04:30 2.13 10:00 2.65 2.38 04:00 3.59 13:30 3.99 3.79 04:30 0.273 13:30 0.412 0.341 0.341 0.24
01/29/2021 03:30 2.10 09:55 2.56 2.35 04:10 3.50 10:25 3.93 3.76 04:10 0.265 10:00 0.390 0.331 0.331 0.03
01/30/2021 05:15 2.10 10:45 2.55 2.33 04:55 3.55 13:50 3.93 3.74 05:10 0.267 10:45 0.388 0.325 0.325 0.07
01/31/2021 05:00 2.11 14:40 2.54 2.31 05:10 3.54 12:40 3.91 3.74 05:10 0.265 12:35 0.381 0.322 0.322 0.12
02/01/2021 03:05 2.12 18:25 2.64 2.38 02:00 3.51 11:30 3.96 3.79 00:30 0.270 18:25 0.411 0.340 0.340 0.82
02/02/2021 04:25 2.14 12:45 2.66 2.43 02:45 3.58 11:00 3.92 3.78 04:20 0.279 12:45 0.411 0.351 0.351 0.31
02/03/2021 04:25 2.21 10:30 2.57 2.41 04:40 3.58 09:45 3.90 3.76 04:40 0.287 11:25 0.389 0.342 0.342 0.06
02/04/2021 02:45 2.10 13:40 2.52 2.34 03:55 3.58 13:55 3.88 3.74 03:45 0.267 13:50 0.376 0.326 0.326 0.07
02/05/2021 03:00 2.08 11:25 2.55 2.31 04:50 3.61 11:20 3.93 3.74 02:55 0.267 11:25 0.387 0.321 0.321 0.01
02/06/2021 05:15 2.08 11:15 2.58 2.33 03:55 3.60 11:20 3.93 3.76 05:15 0.265 11:20 0.395 0.328 0.328 0.01
02/07/2021 02:40 2.08 11:45 2.51 2.29 03:30 3.52 11:50 3.88 3.71 03:30 0.259 11:45 0.374 0.314 0.314 -
02/08/2021 04:15 2.08 12:05 2.75 2.30 04:25 3.52 09:55 3.95 3.72 04:25 0.259 12:10 0.434 0.318 0.318 -
02/09/2021 03:35 2.08 11:45 2.36 2.21 00:55 3.51 11:35 3.82 3.66 03:35 0.260 11:50 0.335 0.295 0.295 -
02/10/2021 01:55 2.02 09:30 2.44 2.22 02:35 3.47 08:00 3.82 3.65 04:25 0.245 09:30 0.352 0.295 0.295 -
02/11/2021 04:25 1.97 12:35 2.38 2.16 02:10 3.43 12:40 3.81 3.63 04:45 0.234 12:35 0.338 0.282 0.282 -
02/12/2021 04:05 2.00 12:10 2.45 2.18 04:05 3.45 09:20 3.82 3.64 04:05 0.240 12:10 0.353 0.288 0.288 -
02/13/2021 05:05 1.91 17:20 2.39 2.15 03:00 3.46 17:20 3.83 3.62 05:05 0.224 17:20 0.345 0.279 0.279 0.08
02/14/2021 04:50 1.92 14:05 2.36 2.19 02:00 3.42 18:00 3.79 3.63 04:50 0.226 14:05 0.330 0.289 0.289 0.71
02/15/2021 02:20 2.17 15:05 2.88 2.47 05:25 3.60 15:10 4.00 3.80 05:25 0.282 15:05 0.472 0.361 0.361 0.78
02/16/2021 02:30 2.28 10:00 2.55 2.43 02:25 3.57 09:40 3.89 3.74 02:30 0.302 09:40 0.381 0.345 0.345 0.07
02/17/2021 02:35 2.24 12:35 2.60 2.40 02:25 3.54 12:35 3.88 3.71 02:25 0.291 12:35 0.395 0.336 0.336 -
02/18/2021 02:35 2.11 10:15 2.93 2.41 00:45 3.45 10:05 3.96 3.73 02:35 0.265 10:15 0.477 0.341 0.341 0.09
02/19/2021 04:45 2.06 12:15 2.56 2.37 05:05 3.49 09:55 3.85 3.71 04:45 0.257 12:20 0.381 0.329 0.329 0.17
02/20/2021 04:05 2.02 13:00 2.57 2.32 01:20 3.44 11:30 3.84 3.65 04:10 0.243 13:00 0.381 0.317 0.317 0.07
02/21/2021 06:20 2.03 23:35 2.59 2.31 03:35 3.45 22:55 3.85 3.65 04:40 0.250 23:35 0.388 0.314 0.314 0.42
02/22/2021 04:30 2.22 12:50 2.89 2.51 03:50 3.56 12:30 3.92 3.76 04:35 0.288 12:50 0.465 0.364 0.364 0.98
02/23/2021 04:55 2.25 15:40 2.70 2.46 02:10 3.53 20:25 3.91 3.75 04:50 0.295 20:30 0.420 0.353 0.353 0.27
02/24/2021 02:45 2.26 12:10 2.70 2.47 01:15 3.59 12:55 3.90 3.77 03:15 0.301 12:15 0.418 0.356 0.356 -
02/25/2021 02:45 2.21 11:10 2.82 2.52 02:40 3.58 10:55 3.96 3.78 02:50 0.288 11:10 0.447 0.370 0.370 0.18
02/26/2021 03:00 2.29 12:15 2.78 2.52 02:00 3.62 14:00 3.99 3.79 03:00 0.312 12:05 0.438 0.370 0.370 0.10
02/27/2021 02:30 2.25 11:07 2.76 2.50 04:45 3.60 13:45 3.96 3.78 02:30 0.299 11:10 0.438 0.363 0.363 0.02
02/28/2021 05:25 2.27 19:50 2.96 2.47 04:15 3.50 19:50 3.93 3.76 04:15 0.301 19:50 0.482 0.356 0.356 0.02
03/01/2021 23:40 2.24 10:30 3.01 2.50 03:10 3.56 10:35 3.96 3.75 23:40 0.296 10:35 0.496 0.361 0.361 -
03/02/2021 02:40 2.11 12:40 2.70 2.40 04:05 3.51 11:50 3.92 3.71 02:40 0.267 12:40 0.418 0.337 0.337 -
03/03/2021 04:05 2.12 18:10 2.60 2.37 03:05 3.50 12:45 3.87 3.71 04:15 0.267 18:10 0.389 0.332 0.332 -
03/04/2021 04:40 2.09 11:05 2.64 2.37 01:05 3.50 11:15 3.90 3.72 04:35 0.260 11:15 0.404 0.332 0.332 0.20
03/05/2021 04:35 2.12 12:35 2.64 2.36 01:10 3.51 11:05 3.89 3.70 03:10 0.269 12:35 0.404 0.328 0.328 0.05
03/06/2021 03:35 2.00 12:15 2.71 2.32 03:35 3.43 11:15 3.89 3.68 03:35 0.238 12:15 0.419 0.318 0.318 -
03/07/2021 03:55 2.00 11:00 2.64 2.28 23:15 3.42 10:35 3.88 3.65 04:05 0.244 11:00 0.401 0.309 0.309 0.04
03/08/2021 03:40 1.97 12:50 2.57 2.25 00:30 3.42 13:00 3.90 3.65 03:40 0.236 13:00 0.388 0.303 0.303 -
03/09/2021 01:25 1.98 14:20 2.53 2.25 02:15 3.44 14:15 3.91 3.67 02:25 0.238 14:30 0.379 0.304 0.304 0.01
03/10/2021 04:05 1.90 10:30 2.47 2.19 03:05 3.38 12:20 3.85 3.61 02:45 0.222 10:25 0.359 0.287 0.287 -
03/11/2021 04:15 1.84 13:50 2.40 2.17 04:15 3.40 10:35 3.88 3.63 04:25 0.208 10:35 0.344 0.286 0.286 -
Page 626 of 1163
106
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 03:05 1.87 16:15 2.50 2.20 01:35 3.43 15:25 3.85 3.65 03:05 0.219 16:15 0.364 0.294 0.294 -
03/13/2021 04:00 1.89 10:30 2.60 2.22 05:00 3.43 13:55 3.92 3.66 04:00 0.226 10:30 0.393 0.297 0.297 -
03/14/2021 02:40 1.86 09:30 2.44 2.19 23:50 3.42 14:45 3.86 3.63 02:40 0.217 09:30 0.353 0.289 0.289 0.30
03/15/2021 03:15 1.89 10:55 2.60 2.22 00:05 3.40 10:50 3.89 3.65 03:15 0.221 10:50 0.394 0.296 0.296 -
03/16/2021 02:15 1.80 10:30 2.67 2.19 23:30 3.33 10:25 3.85 3.56 01:35 0.206 10:30 0.405 0.284 0.284 -
03/17/2021 02:10 1.95 11:45 2.46 2.20 01:30 3.21 12:10 3.80 3.53 02:10 0.215 11:45 0.351 0.282 0.282 -
03/18/2021 03:25 1.75 12:15 3.08 2.24 02:05 3.23 12:15 3.87 3.55 03:25 0.189 12:15 0.502 0.294 0.294 0.11
03/19/2021 03:30 1.95 09:15 2.48 2.28 02:10 3.31 08:40 3.71 3.53 03:35 0.226 10:25 0.348 0.298 0.298 0.03
03/20/2021 02:55 1.85 11:25 2.67 2.30 22:40 3.30 11:20 3.81 3.55 02:55 0.209 11:20 0.401 0.304 0.304 0.17
03/21/2021 03:35 1.95 10:30 2.66 2.30 00:30 3.36 10:25 3.79 3.55 03:35 0.226 10:25 0.397 0.302 0.302 0.07
03/22/2021 02:10 1.93 11:15 2.64 2.29 01:05 3.31 16:35 3.78 3.54 02:35 0.221 11:15 0.391 0.302 0.302 0.11
03/23/2021 03:30 1.92 12:10 2.60 2.28 03:35 3.26 08:45 3.73 3.53 03:35 0.212 12:10 0.375 0.297 0.297 -
03/24/2021 02:40 1.93 12:00 2.62 2.28 01:05 3.30 11:50 3.78 3.54 02:35 0.219 12:00 0.384 0.299 0.299 0.34
03/25/2021 23:55 1.99 10:20 2.61 2.30 23:55 3.32 10:10 3.80 3.55 23:55 0.228 10:20 0.384 0.303 0.303 0.27
03/26/2021 03:30 1.79 10:35 2.51 2.22 00:50 3.28 10:30 3.71 3.53 03:30 0.199 10:30 0.357 0.286 0.286 -
03/27/2021 03:35 1.86 10:00 2.65 2.27 03:20 3.24 10:45 3.79 3.55 03:20 0.207 10:05 0.390 0.298 0.298 -
03/28/2021 01:40 1.90 13:10 2.66 2.27 05:20 3.31 13:05 3.83 3.56 01:40 0.218 13:10 0.403 0.299 0.299 0.37
03/29/2021 23:45 1.99 10:30 2.62 2.29 23:40 3.27 09:40 3.79 3.56 23:40 0.226 09:40 0.387 0.302 0.302 -
03/30/2021 02:15 1.79 10:25 2.74 2.24 03:40 3.22 10:20 3.82 3.54 02:15 0.191 10:20 0.416 0.292 0.292 -
03/31/2021 03:45 1.88 10:10 2.47 2.23 03:10 3.27 09:50 3.72 3.53 03:00 0.213 10:10 0.346 0.288 0.288 -
04/01/2021 02:20 1.96 07:35 2.59 2.30 02:25 3.24 07:50 3.83 3.55 02:20 0.222 07:50 0.386 0.304 0.304 -
04/02/2021 03:50 1.93 13:55 2.52 2.27 02:05 3.22 11:50 3.72 3.51 03:15 0.218 13:55 0.360 0.296 0.296 -
04/03/2021 04:05 1.85 11:10 2.63 2.26 03:40 3.11 10:25 3.77 3.47 02:40 0.196 11:15 0.384 0.290 0.290 -
04/04/2021 01:50 1.96 10:10 2.57 2.25 01:45 3.22 21:50 3.73 3.48 01:50 0.221 10:10 0.369 0.288 0.288 -
04/05/2021 03:30 1.73 13:35 2.54 2.22 02:55 3.15 10:55 3.72 3.48 02:55 0.180 10:55 0.359 0.284 0.284 -
04/06/2021 03:50 1.81 10:35 2.57 2.21 01:25 3.17 09:15 3.73 3.45 03:50 0.198 10:40 0.373 0.279 0.279 -
04/07/2021 02:55 1.75 11:30 2.53 2.16 01:10 3.11 11:10 3.71 3.44 03:00 0.179 11:30 0.358 0.270 0.270 0.22
04/08/2021 01:50 1.72 11:30 2.49 2.05 02:25 3.18 11:20 3.69 3.43 01:50 0.180 11:25 0.349 0.247 0.247 -
04/09/2021 23:45 1.73 11:35 2.42 2.06 01:05 3.07 11:35 3.73 3.45 01:05 0.178 11:35 0.341 0.252 0.252 0.03
04/10/2021 03:50 1.69 11:00 2.58 2.05 23:05 3.21 10:55 3.73 3.47 01:45 0.178 11:00 0.372 0.251 0.251 0.02
04/11/2021 01:10 1.68 12:15 2.44 2.01 04:10 3.11 13:00 3.81 3.42 04:35 0.171 12:15 0.339 0.241 0.241 -
04/12/2021 00:47 1.74 14:05 2.43 2.09 02:45 3.14 08:40 3.64 3.43 02:45 0.181 14:05 0.333 0.255 0.255 -
04/13/2021 02:30 1.82 12:25 2.45 2.16 02:40 3.18 08:35 3.63 3.45 02:40 0.192 08:35 0.337 0.269 0.269 -
04/14/2021 02:15 1.79 09:45 2.70 2.16 00:35 3.16 09:45 3.78 3.46 02:15 0.189 09:45 0.405 0.270 0.270 -
09/22/2020 20:40 1.52 11:10 2.02 1.74 23:55 2.37 10:55 3.81 3.36 23:55 0.125 11:10 0.266 0.190 0.104 -
09/23/2020 07:50 1.47 16:40 2.01 1.70 01:35 2.15 16:45 3.82 3.27 03:50 0.104 16:45 0.267 0.180 0.180 -
09/24/2020 20:20 1.49 12:25 2.04 1.71 02:45 2.32 12:20 3.79 3.27 23:55 0.119 12:25 0.271 0.182 0.182 -
09/25/2020 02:10 1.40 12:00 2.12 1.72 02:35 2.14 11:55 3.85 3.25 02:20 0.090 12:00 0.291 0.186 0.186 -
09/26/2020 02:25 1.51 10:55 2.03 1.73 04:15 2.44 18:00 3.76 3.23 04:15 0.117 09:35 0.253 0.183 0.183 -
09/27/2020 04:00 1.30 10:15 2.05 1.72 03:25 2.35 16:55 3.59 3.07 04:00 0.095 10:15 0.255 0.173 0.173 -
09/28/2020 02:45 1.41 09:45 1.99 1.76 02:45 2.41 09:40 3.55 3.05 02:45 0.100 09:40 0.242 0.178 0.178 -
09/29/2020 03:45 1.54 10:35 2.11 1.78 01:25 2.25 10:35 3.51 2.99 01:25 0.110 10:40 0.264 0.177 0.177 -
09/30/2020 03:50 1.63 11:40 2.11 1.88 00:40 2.23 11:40 3.48 2.99 02:20 0.120 11:40 0.261 0.191 0.191 -
10/01/2020 02:00 1.54 11:25 2.10 1.86 03:40 2.17 18:05 3.43 2.85 02:15 0.103 11:25 0.252 0.180 0.180 -
10/02/2020 03:30 1.63 10:10 2.13 1.95 03:30 2.08 09:45 3.46 2.81 03:30 0.107 10:10 0.259 0.190 0.190 -
10/03/2020 02:55 1.61 11:10 2.15 1.90 02:50 2.28 11:05 3.43 2.96 02:50 0.119 11:10 0.264 0.192 0.192 0.01
10/04/2020 04:30 1.51 09:00 2.14 1.85 02:05 2.27 08:55 3.48 2.94 04:25 0.114 08:55 0.265 0.184 0.184 0.01
10/05/2020 03:40 1.51 11:25 2.02 1.83 03:00 2.22 12:25 3.51 3.00 03:00 0.105 11:25 0.247 0.184 0.184 -
10/06/2020 02:35 1.59 08:55 2.34 1.89 02:35 2.32 08:45 3.64 3.01 02:35 0.115 08:55 0.309 0.195 0.195 -
10/07/2020 01:20 1.51 11:15 2.17 1.93 00:05 2.27 11:15 3.51 2.99 00:05 0.111 11:15 0.274 0.199 0.199 -
10/08/2020 22:55 1.70 07:50 2.15 1.98 02:00 2.40 07:45 3.50 3.06 03:25 0.136 07:45 0.269 0.211 0.211 -
10/09/2020 02:55 1.50 23:15 2.23 1.94 03:45 2.31 23:25 3.60 3.03 03:05 0.108 23:15 0.288 0.204 0.204 0.64
10/10/2020 18:50 1.70 02:05 2.60 1.98 23:45 2.74 02:05 3.97 3.35 23:45 0.167 02:05 0.404 0.230 0.230 1.04
10/11/2020 01:20 1.71 14:40 2.21 1.93 02:05 2.42 14:40 3.69 3.21 01:20 0.139 14:40 0.296 0.214 0.214 0.53
10/12/2020 15:55 1.73 11:20 2.12 1.90 03:50 2.60 11:20 3.57 3.25 03:50 0.151 11:20 0.270 0.209 0.209 -
10/13/2020 00:20 1.75 14:35 2.23 1.94 01:50 2.74 14:35 3.63 3.31 02:00 0.158 14:35 0.295 0.222 0.222 0.61
10/14/2020 02:55 1.73 13:25 2.22 1.98 02:50 2.66 09:25 3.59 3.23 02:50 0.150 09:25 0.288 0.223 0.223 -
10/15/2020 21:30 1.78 09:10 2.37 1.99 02:20 2.59 09:15 3.69 3.19 02:20 0.156 09:15 0.329 0.221 0.221 -
10/16/2020 21:15 1.77 11:20 2.28 2.00 03:35 2.61 09:55 3.67 3.24 03:35 0.169 10:00 0.306 0.227 0.227 -
10/17/2020 03:40 1.75 12:45 2.08 1.91 01:30 2.58 11:50 3.64 3.23 03:40 0.150 11:35 0.264 0.211 0.211 0.01
10/18/2020 20:40 1.77 12:05 2.10 1.94 02:00 2.68 12:55 3.64 3.27 02:05 0.160 12:00 0.269 0.218 0.218 0.03
10/19/2020 01:35 1.83 11:10 2.42 2.03 03:40 2.67 11:05 3.76 3.29 02:05 0.167 11:10 0.344 0.235 0.235 0.05
10/20/2020 22:45 1.67 11:50 2.43 2.00 01:15 2.59 11:40 3.81 3.33 03:50 0.165 11:50 0.350 0.233 0.233 -
10/21/2020 23:00 1.72 09:25 2.25 1.94 02:25 2.72 08:45 3.67 3.34 02:30 0.158 09:25 0.301 0.222 0.222 0.01
10/22/2020 03:10 1.74 09:35 2.49 1.97 03:30 2.73 09:30 3.83 3.34 03:30 0.154 09:35 0.366 0.229 0.229 -
10/23/2020 21:55 1.76 09:40 2.32 2.01 04:00 2.88 09:45 3.71 3.41 03:10 0.188 09:40 0.318 0.240 0.240 0.20
10/24/2020 21:50 1.70 10:00 2.29 1.97 04:10 2.93 09:55 3.77 3.35 22:05 0.176 10:00 0.317 0.230 0.230 0.02
10/25/2020 02:45 1.77 11:45 2.20 1.97 02:50 2.63 11:50 3.69 3.29 02:50 0.153 11:45 0.292 0.225 0.225 -
10/26/2020 23:25 1.76 09:10 2.53 2.03 02:45 2.72 09:10 3.83 3.34 00:00 0.176 09:10 0.373 0.239 0.239 -
10/27/2020 22:10 1.75 10:30 2.22 1.98 04:05 2.77 11:00 3.66 3.35 23:20 0.179 11:00 0.295 0.231 0.231 -
10/28/2020 23:05 1.75 09:05 2.20 1.98 03:35 2.83 13:40 3.66 3.36 04:00 0.181 14:10 0.290 0.231 0.231 -
10/29/2020 21:45 1.69 10:05 2.07 1.89 03:05 3.04 18:00 3.71 3.43 04:45 0.179 18:00 0.267 0.219 0.219 -
10/30/2020 21:50 1.65 11:40 2.12 1.90 02:25 3.01 11:40 3.77 3.43 02:20 0.168 11:40 0.285 0.223 0.223 0.10
10/31/2020 19:40 1.72 09:25 2.19 1.90 00:30 2.88 09:25 3.71 3.32 00:30 0.176 09:25 0.293 0.215 0.215 -
Page 627 of 1163
107
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 22:35 1.67 12:30 2.17 1.91 04:20 2.84 13:15 3.72 3.35 22:50 0.173 13:15 0.287 0.219 0.219 -
11/02/2020 23:35 1.65 10:05 2.14 1.87 03:35 2.88 11:30 3.68 3.38 23:35 0.168 10:05 0.280 0.214 0.214 -
11/03/2020 00:10 1.65 10:30 2.36 1.93 04:40 2.82 11:30 3.85 3.44 04:40 0.158 10:30 0.338 0.229 0.229 0.83
11/04/2020 01:35 1.58 09:45 2.11 1.83 03:10 3.13 09:50 3.71 3.50 02:35 0.158 09:45 0.277 0.214 0.214 0.09
11/05/2020 02:40 1.53 15:00 2.11 1.84 04:55 3.13 16:05 3.72 3.49 02:40 0.154 15:00 0.278 0.217 0.217 0.34
11/06/2020 01:20 1.59 11:45 2.21 1.90 04:55 3.05 09:45 3.73 3.46 01:25 0.160 11:45 0.298 0.224 0.224 0.10
11/07/2020 00:25 1.70 11:45 2.32 1.95 04:55 2.99 12:30 3.75 3.41 00:25 0.178 11:45 0.321 0.230 0.230 0.07
11/08/2020 00:35 1.72 11:55 2.28 1.97 04:25 2.89 13:10 3.71 3.36 04:30 0.167 11:50 0.309 0.231 0.231 0.01
11/09/2020 00:15 1.75 09:50 2.30 2.00 04:05 2.92 17:50 3.70 3.36 03:25 0.179 17:50 0.313 0.234 0.234 0.04
11/10/2020 23:55 1.76 11:55 2.25 2.05 04:25 2.88 11:45 3.67 3.40 04:25 0.188 11:55 0.302 0.246 0.246 0.03
11/11/2020 00:30 1.69 11:00 2.47 2.02 04:00 3.05 10:55 3.81 3.46 02:20 0.176 11:00 0.359 0.246 0.246 -
11/12/2020 00:50 1.70 12:30 2.25 1.93 05:05 2.93 12:20 3.69 3.40 05:05 0.173 12:30 0.304 0.225 0.225 0.16
11/13/2020 03:10 1.67 09:45 2.65 2.03 01:50 3.14 09:50 3.90 3.50 03:10 0.172 09:45 0.405 0.250 0.250 0.38
11/14/2020 00:55 1.72 13:35 2.30 2.03 03:15 3.04 17:05 3.77 3.46 00:55 0.180 13:35 0.317 0.248 0.248 0.47
11/15/2020 04:30 1.73 15:05 2.37 2.03 04:55 3.27 11:35 3.74 3.49 04:30 0.185 15:10 0.330 0.249 0.249 0.19
11/16/2020 04:15 1.74 13:20 2.47 2.10 04:40 3.09 12:55 3.81 3.52 04:40 0.180 16:25 0.358 0.266 0.266 0.31
11/17/2020 00:50 1.84 11:35 2.38 2.12 02:15 3.14 11:30 3.74 3.49 06:55 0.204 11:35 0.334 0.264 0.264 0.20
11/18/2020 02:30 1.72 13:05 2.33 2.07 04:40 3.14 17:30 3.74 3.49 02:30 0.182 17:30 0.324 0.257 0.257 0.30
11/19/2020 01:15 1.81 12:25 2.42 2.08 02:25 3.19 13:25 3.76 3.48 01:05 0.196 12:25 0.341 0.258 0.258 0.50
11/20/2020 00:55 1.79 10:35 2.42 2.10 03:10 3.08 10:40 3.70 3.44 03:30 0.189 10:35 0.337 0.258 0.258 0.01
11/21/2020 02:20 1.86 16:10 2.37 2.12 04:30 3.14 11:20 3.70 3.44 02:40 0.204 11:25 0.327 0.262 0.262 -
11/22/2020 04:50 1.82 15:40 2.64 2.11 02:50 3.26 15:40 3.82 3.48 05:40 0.199 15:40 0.396 0.262 0.262 0.21
11/23/2020 02:05 1.77 10:55 2.52 2.10 04:45 3.11 09:45 3.82 3.48 04:45 0.184 11:05 0.367 0.262 0.262 0.14
11/24/2020 00:25 1.79 16:20 2.37 2.05 04:15 3.09 15:45 3.73 3.45 02:15 0.190 16:25 0.328 0.250 0.250 0.21
11/25/2020 03:00 1.76 11:05 2.31 2.04 04:35 3.12 14:30 3.73 3.47 03:25 0.183 12:30 0.311 0.250 0.250 0.05
11/26/2020 04:55 1.76 14:30 2.39 1.96 05:10 3.06 14:40 3.68 3.38 05:35 0.177 14:30 0.329 0.230 0.230 0.02
11/27/2020 00:35 1.76 12:05 2.21 1.97 04:25 2.96 10:30 3.64 3.36 04:25 0.179 10:30 0.283 0.230 0.230 -
11/28/2020 02:45 1.82 13:30 2.29 2.04 04:25 2.84 10:35 3.65 3.35 04:55 0.179 13:30 0.306 0.242 0.242 0.05
11/29/2020 01:00 1.93 14:10 2.37 2.13 05:10 3.01 10:35 3.66 3.39 03:45 0.201 18:45 0.317 0.260 0.260 -
11/30/2020 02:10 1.91 11:55 2.59 2.20 02:15 3.22 19:50 3.78 3.51 02:10 0.210 11:55 0.374 0.281 0.281 0.36
12/01/2020 23:40 1.81 12:20 2.33 2.03 04:30 3.11 12:30 3.71 3.43 04:40 0.195 12:35 0.321 0.244 0.244 -
12/02/2020 02:50 1.77 14:20 2.40 2.04 05:05 2.99 12:20 3.71 3.41 04:45 0.175 12:20 0.332 0.246 0.246 0.01
12/03/2020 04:25 1.76 12:15 2.55 2.04 03:10 2.95 12:25 3.76 3.43 04:25 0.172 12:20 0.369 0.246 0.246 -
12/04/2020 23:35 1.73 12:40 2.25 2.00 05:00 3.18 10:10 3.71 3.46 06:45 0.190 12:40 0.298 0.241 0.241 -
12/05/2020 04:55 1.76 12:55 2.41 1.99 04:35 3.10 12:45 3.77 3.45 04:55 0.180 12:55 0.341 0.239 0.239 0.03
12/06/2020 21:10 1.80 13:10 2.23 1.98 03:15 3.13 13:15 3.71 3.45 03:20 0.192 13:15 0.300 0.237 0.237 0.03
12/07/2020 03:35 1.80 12:10 2.47 1.99 04:50 3.09 10:35 3.80 3.44 01:50 0.188 10:45 0.354 0.238 0.238 -
12/08/2020 03:40 1.73 09:45 2.52 2.03 05:00 2.99 09:45 3.79 3.46 05:00 0.170 09:45 0.368 0.248 0.248 0.87
12/09/2020 21:10 1.77 13:20 2.25 1.94 04:50 3.15 14:05 3.71 3.50 04:50 0.195 13:20 0.305 0.232 0.232 0.17
12/10/2020 23:35 1.72 10:25 2.41 1.99 02:40 3.19 10:25 3.85 3.55 05:00 0.192 10:25 0.350 0.246 0.246 0.07
12/11/2020 01:25 1.72 10:20 2.14 1.90 05:00 3.27 14:05 3.77 3.53 01:30 0.185 10:20 0.288 0.227 0.227 0.02
12/12/2020 07:30 1.75 13:45 2.23 1.88 02:45 3.12 13:40 3.83 3.45 05:40 0.184 13:45 0.308 0.220 0.220 0.01
12/13/2020 03:20 1.74 13:00 2.40 1.94 05:10 2.97 09:50 3.87 3.49 05:10 0.169 13:00 0.348 0.234 0.234 0.24
12/14/2020 23:00 1.75 12:05 2.44 1.94 03:15 2.94 11:30 3.89 3.53 03:15 0.175 12:05 0.355 0.236 0.236 0.05
12/15/2020 23:05 1.70 15:55 2.52 1.98 01:40 2.87 15:55 3.96 3.56 02:00 0.176 15:55 0.385 0.245 0.245 0.58
12/16/2020 00:55 1.67 10:15 2.47 2.02 03:30 3.00 11:35 3.86 3.62 03:30 0.173 10:15 0.363 0.258 0.258 0.39
12/17/2020 04:20 1.73 14:45 2.26 1.94 02:05 3.29 10:50 3.82 3.58 04:45 0.187 11:05 0.313 0.240 0.240 0.08
12/18/2020 01:50 1.71 14:40 2.32 1.96 01:55 3.21 15:35 3.83 3.58 04:25 0.178 14:40 0.326 0.244 0.244 0.25
12/19/2020 00:45 1.72 20:50 2.32 2.02 04:05 3.28 16:25 3.80 3.60 00:50 0.189 20:45 0.323 0.256 0.256 0.37
12/20/2020 08:25 1.73 12:45 2.33 2.00 23:55 3.31 12:35 3.80 3.59 04:50 0.193 12:45 0.327 0.251 0.251 0.04
12/21/2020 04:45 1.87 17:00 2.77 2.20 00:25 3.12 19:05 4.02 3.65 00:25 0.216 17:00 0.445 0.293 0.293 1.07
12/22/2020 01:40 1.88 14:25 2.49 2.16 04:30 3.37 09:55 3.89 3.65 03:55 0.217 14:50 0.363 0.285 0.285 -
12/23/2020 22:20 2.02 12:40 2.43 2.21 03:20 3.25 12:35 3.85 3.61 03:20 0.240 12:40 0.355 0.290 0.290 -
12/24/2020 04:35 1.91 11:10 2.42 2.16 04:25 3.36 12:25 3.88 3.65 04:35 0.222 12:40 0.356 0.284 0.284 -
12/25/2020 03:45 1.93 13:35 2.40 2.16 01:20 3.42 14:00 4.01 3.68 04:50 0.229 13:30 0.347 0.287 0.287 0.49
12/26/2020 22:10 1.98 14:10 2.44 2.19 05:05 3.46 14:05 3.89 3.68 22:10 0.242 14:10 0.361 0.291 0.291 0.02
12/27/2020 04:20 1.91 18:00 2.47 2.23 04:15 3.42 19:25 3.94 3.71 04:15 0.223 17:55 0.368 0.304 0.304 0.13
12/28/2020 23:05 2.05 12:30 2.39 2.20 23:10 3.59 12:30 3.90 3.76 23:05 0.260 12:30 0.350 0.301 0.301 -
12/29/2020 02:50 1.91 15:35 2.41 2.15 04:30 3.44 14:40 3.90 3.71 02:50 0.229 15:30 0.351 0.287 0.287 0.14
12/30/2020 01:20 2.00 23:50 2.54 2.26 00:35 3.48 23:45 3.96 3.78 01:20 0.248 23:50 0.388 0.315 0.315 0.78
12/31/2020 04:40 2.05 14:05 2.49 2.27 03:15 3.54 00:00 3.95 3.80 03:15 0.259 14:15 0.378 0.318 0.318 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 57.723 30.65
Average 2.17 3.55 0.282
Page 628 of 1163
108
Page 629 of 1163
109
AUB_A4_50817
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced flow changes during the monitoring period.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 3.65 2.02 0.259
Minimum 1.66 0.71 0.030
Maximum 6.66 2.57 0.593
Min Time 02/13/2021 10:00:00 AM 02/13/2021 10:00:00 AM 02/13/2021 10:00:00 AM
Max Time 02/13/2021 3:00:00 PM 10/09/2020 8:00:00 AM 02/13/2021 3:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 94.975
VFINAL (ft/s) 94.975
QFINAL (MGD - Total MG) 94.975
Pipe Elliptical (12 in H x 11.75 in W)
Silt 0.00 (in)
Page 630 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A4_50817
Page 631 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Scattergraph Report
AUB_A4_50817
Page 632 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A4_50817Pipe: Elliptical (12 in H x 11.75 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 03:40 3.32 15:40 4.37 3.89 04:25 1.60 21:50 2.23 1.97 04:25 0.186 13:40 0.356 0.276 0.276 0.51
01/02/2021 05:20 3.29 22:25 4.88 4.07 03:55 1.64 16:15 2.32 1.98 03:55 0.194 18:05 0.409 0.297 0.297 1.69
01/03/2021 06:05 3.74 13:35 4.72 4.33 05:00 1.70 16:25 2.30 2.03 06:05 0.244 12:35 0.389 0.328 0.328 0.65
01/04/2021 06:05 3.59 10:25 5.26 4.20 01:00 1.70 15:10 2.26 1.98 03:15 0.220 10:25 0.447 0.309 0.309 0.48
01/05/2021 03:55 3.38 12:25 4.56 4.10 04:10 1.62 22:10 2.27 1.95 04:10 0.193 17:25 0.372 0.295 0.295 0.52
01/06/2021 03:20 3.64 15:15 4.59 4.15 06:25 1.71 22:15 2.28 1.96 06:25 0.223 15:15 0.377 0.299 0.299 0.22
01/07/2021 04:10 3.36 14:45 4.55 4.05 04:10 1.58 06:50 2.27 1.94 04:10 0.181 15:10 0.365 0.288 0.288 -
01/08/2021 02:40 3.30 15:00 4.52 3.99 02:30 1.56 20:45 2.35 1.96 02:40 0.176 15:00 0.388 0.285 0.285 0.22
01/09/2021 03:40 3.34 12:15 4.57 4.00 03:25 1.56 21:30 2.27 1.97 03:25 0.179 12:15 0.376 0.287 0.287 -
01/10/2021 01:55 3.43 11:15 4.57 4.00 01:30 1.66 15:20 2.31 1.96 01:30 0.198 11:30 0.375 0.285 0.285 0.07
01/11/2021 04:40 3.28 14:00 4.62 4.07 00:40 1.56 10:20 2.23 1.93 00:40 0.184 11:30 0.382 0.289 0.289 1.06
01/12/2021 01:00 3.89 18:30 5.75 4.74 16:25 1.64 00:15 2.19 1.93 02:05 0.251 18:30 0.481 0.352 0.352 2.10
01/13/2021 04:50 3.94 13:20 4.89 4.46 23:00 1.62 13:20 2.08 1.83 05:55 0.233 13:20 0.396 0.310 0.310 0.09
01/14/2021 05:00 3.63 11:50 4.76 4.28 03:25 1.58 13:00 2.08 1.84 03:25 0.213 11:35 0.358 0.293 0.293 0.01
01/15/2021 02:15 3.58 12:05 4.62 4.17 02:45 1.56 14:55 2.08 1.82 02:45 0.198 14:55 0.358 0.280 0.280 0.09
01/16/2021 04:45 3.49 21:05 4.85 4.17 00:50 1.55 21:20 2.08 1.82 04:45 0.192 21:20 0.368 0.280 0.280 -
01/17/2021 05:25 3.39 12:10 4.76 4.11 02:40 1.51 09:20 2.19 1.79 04:50 0.181 10:40 0.361 0.271 0.271 0.10
01/18/2021 03:10 3.55 10:30 4.70 4.09 03:50 1.48 18:05 2.26 1.87 03:50 0.184 18:05 0.370 0.281 0.281 -
01/19/2021 03:45 3.28 12:35 4.64 4.03 08:10 1.65 13:15 2.22 1.92 03:40 0.195 13:15 0.372 0.282 0.282 0.01
01/20/2021 04:05 3.28 12:50 4.53 3.93 00:25 1.67 16:10 2.35 1.90 04:05 0.184 16:10 0.363 0.271 0.271 -
01/21/2021 03:35 3.19 15:20 5.29 3.92 03:45 1.50 13:30 2.34 1.88 03:45 0.161 15:20 0.432 0.268 0.268 0.11
01/22/2021 05:05 3.10 11:40 4.45 3.83 02:55 1.49 21:10 2.26 1.85 02:55 0.155 15:00 0.348 0.257 0.257 -
01/23/2021 04:35 3.08 15:05 4.37 3.82 03:00 1.57 14:30 2.30 1.86 03:40 0.167 14:30 0.356 0.256 0.256 -
01/24/2021 04:40 3.20 12:55 4.33 3.77 03:05 1.40 11:00 2.17 1.85 03:05 0.149 11:00 0.334 0.250 0.250 0.16
01/25/2021 03:40 3.29 11:25 4.62 3.94 03:10 1.17 21:35 2.16 1.72 03:25 0.134 11:25 0.346 0.248 0.248 0.04
01/26/2021 03:20 3.03 19:30 4.32 3.80 04:05 1.53 18:30 2.18 1.85 04:05 0.156 18:30 0.326 0.252 0.252 -
01/27/2021 02:15 3.14 11:15 4.24 3.78 02:20 1.41 21:20 2.13 1.81 02:20 0.146 10:40 0.323 0.245 0.245 0.14
01/28/2021 10:30 1.57 11:35 7.62 3.76 10:35 0.57 13:15 2.34 1.82 10:30 0.022 11:40 0.637 0.254 0.254 0.24
01/29/2021 08:45 2.14 09:50 7.58 3.70 08:45 0.98 13:45 2.29 1.86 08:45 0.059 09:50 0.692 0.248 0.248 0.03
01/30/2021 06:05 2.89 11:05 4.85 3.64 04:05 1.41 12:55 2.18 1.85 06:05 0.134 11:05 0.409 0.240 0.240 0.07
01/31/2021 13:00 2.41 13:25 6.38 3.66 13:00 1.17 13:20 2.40 1.84 13:00 0.083 13:20 0.581 0.241 0.241 0.12
02/01/2021 04:10 3.19 09:30 4.31 3.85 05:30 1.54 12:35 2.15 1.89 04:55 0.171 12:35 0.339 0.263 0.263 0.82
02/02/2021 03:20 3.16 13:50 4.60 3.95 02:40 1.55 21:25 2.20 1.87 03:15 0.168 21:25 0.384 0.269 0.269 0.31
02/03/2021 03:50 3.20 09:05 5.28 3.96 03:25 1.57 18:10 2.25 1.86 03:25 0.172 09:05 0.456 0.269 0.269 0.06
02/04/2021 04:00 3.18 13:45 4.34 3.84 04:05 1.53 10:45 2.20 1.85 04:05 0.161 13:45 0.347 0.256 0.256 0.07
02/05/2021 04:05 3.04 12:45 4.28 3.76 04:30 1.50 09:20 2.13 1.85 04:05 0.153 12:45 0.324 0.250 0.250 0.01
02/06/2021 05:10 3.08 12:40 4.48 3.83 03:25 1.45 19:30 2.11 1.86 03:25 0.156 12:30 0.352 0.257 0.257 0.01
02/07/2021 05:10 2.95 13:30 4.33 3.67 02:45 1.45 14:25 2.14 1.84 03:30 0.146 13:10 0.329 0.240 0.240 -
02/08/2021 03:30 3.04 19:55 4.58 3.72 02:35 1.52 15:45 2.32 1.89 02:35 0.158 19:55 0.378 0.251 0.251 -
02/09/2021 03:20 3.00 09:35 4.48 3.71 06:00 1.40 09:30 2.29 1.89 06:00 0.143 09:30 0.384 0.250 0.250 -
02/10/2021 03:15 2.93 12:25 4.31 3.63 04:05 1.47 17:45 2.23 1.88 04:05 0.139 14:05 0.333 0.242 0.242 -
02/11/2021 04:10 2.80 11:10 4.27 3.66 03:55 1.37 09:05 2.16 1.80 03:55 0.127 11:45 0.318 0.233 0.233 -
02/12/2021 04:35 2.90 11:05 4.14 3.62 00:50 1.39 10:55 2.20 1.81 03:35 0.141 10:55 0.324 0.232 0.232 -
02/13/2021 10:05 1.61 14:20 8.84 3.42 10:00 0.64 22:00 2.28 1.62 10:00 0.026 14:20 0.775 0.215 0.215 0.08
02/14/2021 06:50 3.04 12:40 4.21 3.65 03:10 1.48 12:40 2.28 1.88 03:10 0.151 12:40 0.355 0.242 0.242 0.71
02/15/2021 04:15 3.23 13:35 4.62 3.96 03:50 1.61 13:30 2.24 1.90 03:05 0.181 13:30 0.385 0.275 0.275 0.78
02/16/2021 04:25 3.28 18:20 4.42 3.93 04:00 1.56 11:00 2.26 1.86 04:00 0.181 11:00 0.369 0.265 0.265 0.07
02/17/2021 04:15 3.23 12:45 4.38 3.85 04:25 1.45 21:25 2.18 1.83 04:25 0.156 12:50 0.339 0.255 0.255 -
02/18/2021 04:00 3.04 13:10 4.41 3.83 03:25 1.47 20:55 2.21 1.84 04:00 0.152 20:55 0.345 0.254 0.254 0.09
02/19/2021 04:25 3.10 13:40 4.34 3.77 05:45 1.49 18:55 2.19 1.86 05:45 0.155 13:30 0.334 0.252 0.252 0.17
02/20/2021 04:45 3.09 13:15 4.43 3.73 03:35 1.54 10:20 2.10 1.84 04:50 0.159 13:15 0.344 0.245 0.245 0.07
02/21/2021 04:45 3.04 12:05 4.29 3.69 04:40 1.53 11:20 2.13 1.81 04:45 0.151 11:20 0.330 0.237 0.237 0.42
02/22/2021 03:55 3.29 16:50 4.95 4.06 01:10 1.55 15:10 2.14 1.88 06:15 0.181 13:55 0.400 0.281 0.281 0.98
02/23/2021 03:35 3.24 10:55 4.46 3.94 03:35 1.49 15:10 2.21 1.84 03:35 0.162 15:10 0.366 0.264 0.264 0.27
02/24/2021 03:40 3.07 11:35 4.68 3.92 03:15 1.50 10:35 2.24 1.82 03:35 0.156 10:35 0.379 0.260 0.260 -
02/25/2021 03:40 3.22 11:20 4.45 3.91 03:30 1.44 10:00 2.17 1.83 03:30 0.162 10:00 0.345 0.259 0.259 0.18
02/26/2021 03:55 3.13 13:30 4.49 3.89 03:55 1.38 15:50 2.27 1.81 03:55 0.142 15:50 0.354 0.256 0.256 0.10
02/27/2021 03:05 3.22 11:55 4.44 3.81 03:40 1.49 18:05 2.09 1.80 03:40 0.161 12:05 0.336 0.246 0.246 0.02
02/28/2021 03:55 2.95 11:35 4.32 3.66 02:35 1.45 12:55 2.06 1.78 02:35 0.145 12:55 0.323 0.231 0.231 0.02
03/01/2021 04:10 2.95 11:50 4.44 3.77 03:25 1.29 21:55 2.16 1.81 03:25 0.135 13:00 0.337 0.246 0.246 -
03/02/2021 03:25 2.94 11:30 4.36 3.80 03:25 1.36 13:45 2.38 1.84 03:25 0.128 13:45 0.366 0.252 0.252 -
03/03/2021 04:30 3.10 14:30 4.44 3.80 02:40 1.51 14:30 2.14 1.85 02:55 0.164 14:30 0.357 0.252 0.252 -
03/04/2021 04:55 3.22 11:05 4.31 3.83 03:25 1.48 12:10 2.15 1.86 03:25 0.166 12:10 0.341 0.255 0.255 0.20
03/05/2021 04:00 3.01 12:40 4.51 3.75 01:20 1.52 12:35 2.15 1.83 04:00 0.156 12:35 0.362 0.245 0.245 0.05
03/06/2021 04:55 2.91 12:55 4.28 3.67 06:05 1.39 11:15 2.18 1.79 06:05 0.136 13:00 0.338 0.233 0.233 -
03/07/2021 05:30 2.85 19:30 4.23 3.60 03:10 1.51 10:25 2.36 1.81 05:30 0.140 19:45 0.341 0.230 0.230 0.04
03/08/2021 03:30 2.75 12:05 4.42 3.68 04:15 1.53 11:00 2.18 1.85 03:30 0.132 11:50 0.343 0.242 0.242 -
03/09/2021 03:05 2.87 12:35 4.29 3.63 06:00 1.48 11:35 2.25 1.85 03:10 0.142 11:35 0.335 0.238 0.238 0.01
03/10/2021 04:10 2.80 15:10 4.25 3.64 04:25 1.53 08:30 2.11 1.83 04:15 0.138 16:15 0.323 0.236 0.236 -
03/11/2021 03:45 3.06 10:50 4.51 3.77 02:55 1.55 13:50 2.14 1.86 03:35 0.158 10:35 0.337 0.251 0.251 -
Page 633 of 1163
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DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 02:40 2.85 15:50 4.32 3.65 04:15 1.53 20:50 2.18 1.85 02:15 0.144 15:20 0.338 0.239 0.239 -
03/13/2021 04:55 2.81 13:00 4.48 3.63 04:05 1.49 13:00 2.26 1.91 04:05 0.137 13:00 0.383 0.245 0.245 -
03/14/2021 06:05 2.80 14:00 4.12 3.50 21:50 1.59 13:10 2.17 1.92 05:25 0.152 14:10 0.315 0.233 0.233 0.30
03/15/2021 02:30 2.73 12:35 4.39 3.57 02:30 1.49 11:25 2.26 1.92 02:30 0.127 11:25 0.341 0.241 0.241 -
03/16/2021 03:55 2.78 11:25 4.47 3.62 01:15 1.52 19:45 2.16 1.91 03:55 0.144 10:45 0.353 0.243 0.243 -
03/17/2021 03:10 2.75 11:40 4.47 3.66 01:40 1.48 11:00 2.32 1.91 01:55 0.138 11:00 0.353 0.249 0.249 -
03/18/2021 23:55 3.00 10:20 4.33 3.65 03:45 1.65 19:35 2.18 1.92 23:55 0.167 10:15 0.337 0.246 0.246 0.11
03/19/2021 02:35 2.83 12:05 4.38 3.68 04:25 1.56 08:25 2.23 1.93 04:25 0.141 11:05 0.349 0.253 0.253 0.03
03/20/2021 02:50 2.80 13:15 4.25 3.59 02:45 1.52 12:00 2.28 1.94 02:45 0.136 09:55 0.341 0.246 0.246 0.17
03/21/2021 02:55 2.68 09:55 4.18 3.52 02:50 1.52 11:15 2.28 1.94 02:50 0.128 09:55 0.328 0.238 0.238 0.07
03/22/2021 03:05 2.87 11:15 4.34 3.69 05:50 1.48 09:20 2.33 1.98 02:30 0.147 14:00 0.360 0.259 0.259 0.11
03/23/2021 03:10 3.02 10:55 4.45 3.72 03:10 1.62 13:35 2.38 1.97 03:10 0.159 13:35 0.379 0.260 0.260 -
03/24/2021 04:05 2.90 14:05 4.47 3.74 04:10 1.56 16:35 2.26 1.93 04:10 0.147 14:10 0.358 0.258 0.258 0.34
03/25/2021 03:50 3.14 11:55 4.36 3.88 03:45 1.53 17:05 2.29 1.95 03:45 0.163 11:50 0.352 0.273 0.273 0.27
03/26/2021 03:05 2.84 10:45 4.49 3.71 02:40 1.49 12:35 2.27 1.97 02:40 0.145 10:40 0.361 0.260 0.260 -
03/27/2021 03:40 2.74 10:30 4.28 3.62 05:20 1.52 06:40 2.31 1.93 04:15 0.135 10:20 0.333 0.247 0.247 -
03/28/2021 02:35 2.86 15:15 5.07 3.67 04:55 1.61 10:10 2.51 1.95 02:25 0.154 15:15 0.446 0.254 0.254 0.37
03/29/2021 02:40 2.94 10:55 4.28 3.70 01:00 1.61 20:35 2.32 1.94 02:45 0.155 07:25 0.348 0.255 0.255 -
03/30/2021 02:35 2.95 10:40 4.34 3.73 02:35 1.59 09:50 2.25 1.93 02:35 0.151 09:50 0.344 0.256 0.256 -
03/31/2021 01:30 2.94 12:05 4.52 3.71 00:45 1.43 09:45 2.29 1.88 02:50 0.143 10:05 0.365 0.249 0.249 -
04/01/2021 03:25 2.93 12:20 4.47 3.74 03:20 1.55 09:35 2.26 1.89 03:20 0.146 11:55 0.346 0.252 0.252 -
04/02/2021 06:50 2.15 07:00 6.24 3.70 06:45 1.08 07:55 2.26 1.87 06:45 0.066 07:00 0.540 0.248 0.248 -
04/03/2021 03:35 3.00 10:35 4.46 3.78 03:20 1.40 19:30 2.19 1.84 03:55 0.140 12:35 0.343 0.249 0.249 -
04/04/2021 04:15 2.89 10:50 4.40 3.62 02:00 1.35 16:25 2.23 1.75 04:10 0.126 16:25 0.346 0.225 0.225 -
04/05/2021 01:45 2.88 09:45 4.40 3.66 04:00 1.54 20:10 2.31 1.89 04:00 0.146 14:15 0.331 0.245 0.245 -
04/06/2021 02:50 2.74 10:05 4.30 3.56 01:10 1.54 10:40 2.19 1.91 01:10 0.136 10:40 0.338 0.239 0.239 -
04/07/2021 03:15 2.78 12:10 4.17 3.57 02:35 1.57 18:10 2.23 1.88 03:10 0.143 12:35 0.327 0.236 0.236 0.22
04/08/2021 02:45 2.64 10:25 4.28 3.65 02:45 1.47 09:35 2.29 1.92 02:45 0.120 10:20 0.348 0.249 0.249 -
04/09/2021 02:15 3.00 10:45 4.48 3.65 02:20 1.54 08:00 2.22 1.94 02:20 0.150 10:45 0.346 0.249 0.249 0.03
04/10/2021 03:55 2.81 12:10 4.40 3.61 02:50 1.50 16:00 2.28 1.95 03:45 0.139 12:10 0.355 0.248 0.248 0.02
04/11/2021 02:35 2.72 10:55 4.25 3.49 03:35 1.59 08:15 2.28 1.96 03:35 0.139 10:45 0.345 0.238 0.238 -
04/12/2021 03:10 2.57 09:25 4.32 3.49 02:30 1.59 20:30 2.29 1.94 01:40 0.128 09:25 0.360 0.238 0.238 -
04/13/2021 03:10 2.55 10:50 4.30 3.52 02:15 1.48 19:45 2.41 1.96 02:15 0.116 10:50 0.337 0.242 0.242 -
04/14/2021 02:20 2.74 14:30 4.16 3.55 03:40 1.58 18:50 2.38 1.99 02:20 0.138 14:30 0.338 0.248 0.247 -
10/01/2020 - - - - - - - - - - - - - - - - -
10/02/2020 23:50 2.86 16:30 3.91 3.54 23:30 1.89 15:10 2.70 2.29 23:55 0.172 15:10 0.347 0.282 0.195 -
10/03/2020 03:20 2.53 10:45 3.84 3.28 03:05 1.66 12:30 2.69 2.23 03:20 0.131 12:30 0.351 0.251 0.251 0.01
10/04/2020 03:35 2.54 11:05 3.81 3.12 03:35 1.65 14:40 2.68 2.27 03:35 0.127 11:05 0.350 0.237 0.237 0.01
10/05/2020 03:00 2.40 10:20 3.90 3.23 03:05 1.82 18:20 2.70 2.37 03:05 0.130 11:30 0.350 0.259 0.259 -
10/06/2020 03:15 2.39 12:35 3.99 3.25 03:05 1.75 15:30 2.81 2.35 03:05 0.125 11:50 0.361 0.259 0.259 -
10/07/2020 02:50 2.33 13:35 4.00 3.21 02:20 1.73 09:40 2.68 2.32 02:20 0.121 13:35 0.346 0.252 0.252 -
10/08/2020 01:05 2.37 16:35 3.88 3.22 02:25 1.68 08:05 2.71 2.34 02:25 0.117 16:25 0.359 0.257 0.257 -
10/09/2020 02:35 2.38 10:20 3.82 3.20 01:25 1.88 08:05 2.84 2.39 02:45 0.135 10:55 0.352 0.259 0.259 0.64
10/10/2020 05:05 2.60 09:10 4.04 3.33 04:50 1.74 08:15 2.66 2.28 04:50 0.141 09:10 0.357 0.259 0.259 1.04
10/11/2020 03:20 2.59 09:55 3.93 3.24 02:00 1.76 13:05 2.64 2.27 03:00 0.143 09:55 0.369 0.250 0.250 0.53
10/12/2020 02:50 2.41 10:00 4.20 3.21 02:45 1.61 18:30 2.63 2.30 02:50 0.116 10:00 0.376 0.250 0.250 -
10/13/2020 02:40 2.28 07:45 5.09 3.33 03:00 1.59 13:50 2.62 2.30 03:00 0.109 07:45 0.486 0.263 0.263 0.61
10/14/2020 03:10 2.23 10:25 4.07 3.20 03:10 1.69 11:05 2.70 2.33 03:10 0.108 10:25 0.367 0.251 0.251 -
10/15/2020 02:35 2.39 11:20 4.20 3.30 02:00 1.72 10:20 2.74 2.24 02:00 0.129 10:20 0.373 0.252 0.252 -
10/16/2020 03:25 2.37 12:35 3.99 3.31 03:45 1.60 11:15 2.70 2.19 03:25 0.119 12:35 0.361 0.249 0.249 -
10/17/2020 02:40 2.49 10:15 4.12 3.35 02:35 1.70 09:40 2.63 2.24 02:40 0.127 10:15 0.372 0.259 0.259 0.01
10/18/2020 03:20 2.63 10:50 4.05 3.31 02:35 1.82 18:40 2.61 2.28 03:15 0.152 12:55 0.367 0.257 0.257 0.03
10/19/2020 03:00 2.35 10:10 3.93 3.20 02:55 1.75 15:00 2.71 2.33 02:55 0.121 10:10 0.350 0.252 0.252 0.05
10/20/2020 03:15 2.32 17:45 4.11 3.22 02:40 1.85 15:20 2.65 2.30 03:15 0.132 17:40 0.351 0.250 0.250 -
10/21/2020 03:00 2.27 10:45 3.94 3.22 02:50 1.86 09:05 2.79 2.33 03:00 0.124 09:05 0.352 0.255 0.255 0.01
10/22/2020 02:45 2.45 10:05 3.82 3.24 03:10 1.84 13:45 2.83 2.32 03:10 0.135 09:50 0.366 0.253 0.253 -
10/23/2020 03:40 2.32 10:20 3.95 3.24 03:35 1.54 09:20 2.61 2.21 03:40 0.106 10:30 0.347 0.244 0.244 0.20
10/24/2020 03:55 2.47 11:55 3.83 3.21 04:30 1.76 19:40 2.85 2.33 04:30 0.134 19:40 0.364 0.252 0.252 0.02
10/25/2020 03:10 2.41 10:00 3.97 3.15 04:15 1.84 12:45 2.72 2.31 03:15 0.136 10:05 0.357 0.244 0.244 -
10/26/2020 01:40 2.45 10:45 3.81 3.18 04:00 1.61 07:00 2.76 2.23 04:00 0.119 13:05 0.345 0.240 0.240 -
10/27/2020 03:10 2.45 11:55 4.01 3.24 00:00 1.44 14:40 2.57 2.20 02:20 0.128 11:55 0.356 0.243 0.243 -
10/28/2020 03:00 2.42 14:50 4.01 3.30 03:10 1.59 08:25 2.53 2.20 03:10 0.117 14:50 0.359 0.249 0.249 -
10/29/2020 03:10 2.45 11:20 3.94 3.21 00:15 1.51 11:30 2.59 2.25 03:15 0.117 11:30 0.352 0.243 0.243 -
10/30/2020 03:10 2.29 12:20 4.01 3.19 02:20 1.70 14:55 2.56 2.26 03:10 0.117 11:30 0.340 0.242 0.242 0.10
10/31/2020 04:15 2.23 13:00 3.91 3.11 04:10 1.80 09:05 2.77 2.29 04:20 0.117 14:10 0.342 0.239 0.239 -
11/01/2020 03:00 2.41 10:30 3.70 3.08 05:15 1.91 14:10 2.81 2.31 05:15 0.141 14:10 0.330 0.237 0.237 -
11/02/2020 01:50 2.38 11:55 3.89 3.27 04:45 1.83 09:20 2.61 2.28 02:45 0.131 15:20 0.346 0.254 0.254 -
11/03/2020 04:10 2.59 11:20 4.06 3.40 03:45 1.43 16:50 2.63 2.12 03:45 0.120 14:10 0.336 0.250 0.250 0.83
11/04/2020 03:35 2.51 12:50 3.97 3.35 03:30 1.85 16:55 2.50 2.23 03:30 0.142 12:50 0.337 0.256 0.256 0.09
11/05/2020 03:20 2.44 14:55 3.99 3.35 03:15 1.64 21:35 2.55 2.21 03:15 0.123 14:50 0.344 0.254 0.254 0.34
11/06/2020 02:40 2.56 12:30 4.08 3.36 06:20 1.79 22:20 2.50 2.22 02:30 0.148 13:10 0.346 0.255 0.255 0.10
11/07/2020 04:00 2.70 20:30 4.59 3.52 05:50 1.52 10:30 2.68 2.16 05:50 0.135 20:35 0.380 0.267 0.267 0.07
11/08/2020 06:00 2.64 06:05 5.10 3.70 05:50 1.35 20:25 2.47 2.14 05:55 0.111 06:05 0.454 0.280 0.280 0.01
11/09/2020 04:40 2.61 10:20 4.56 3.33 04:00 1.48 10:45 2.75 2.16 04:00 0.120 10:20 0.425 0.247 0.247 0.04
Page 634 of 1163
114
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/10/2020 04:20 2.57 20:15 3.89 3.26 03:25 1.60 12:55 2.86 2.25 03:25 0.136 12:55 0.356 0.249 0.249 0.03
11/11/2020 03:30 2.46 11:10 3.92 3.28 04:20 1.50 19:00 2.79 2.21 04:10 0.112 19:00 0.343 0.247 0.247 -
11/12/2020 04:15 2.36 17:35 3.88 3.28 04:10 1.74 14:30 2.78 2.30 04:10 0.121 14:30 0.359 0.257 0.257 0.16
11/13/2020 02:45 2.51 11:05 4.39 3.33 02:25 1.70 17:10 2.59 2.30 02:25 0.142 11:00 0.410 0.262 0.262 0.38
11/14/2020 02:10 2.74 09:50 4.16 3.47 04:50 1.60 20:30 2.56 2.20 04:50 0.148 11:20 0.368 0.264 0.264 0.47
11/15/2020 06:25 2.67 11:40 4.11 3.33 03:50 1.74 21:50 2.65 2.31 04:50 0.157 09:50 0.358 0.262 0.262 0.19
11/16/2020 02:15 2.53 12:10 4.20 3.49 04:10 1.74 14:35 2.47 2.14 04:05 0.137 11:15 0.364 0.260 0.260 0.31
11/17/2020 04:05 2.81 10:45 4.35 3.57 03:50 1.49 15:50 2.63 2.14 03:50 0.138 10:45 0.409 0.269 0.269 0.20
11/18/2020 02:35 2.76 15:55 4.38 3.58 04:25 1.98 08:20 2.65 2.31 02:35 0.181 10:10 0.394 0.289 0.289 0.30
11/19/2020 04:10 2.81 13:15 4.25 3.54 23:40 1.73 09:25 2.59 2.23 04:05 0.175 13:15 0.384 0.274 0.274 0.50
11/20/2020 04:15 2.97 13:50 4.35 3.64 03:45 1.30 22:50 2.52 1.95 04:15 0.129 10:05 0.350 0.252 0.252 0.01
11/21/2020 05:35 2.79 12:45 4.32 3.47 03:40 1.86 09:25 2.56 2.27 03:40 0.172 13:10 0.389 0.272 0.272 -
11/22/2020 03:15 2.73 11:40 4.17 3.40 06:20 1.82 16:15 2.59 2.23 06:20 0.165 12:30 0.369 0.260 0.260 0.21
11/23/2020 03:50 2.72 09:30 4.26 3.58 18:10 1.90 08:00 2.50 2.21 03:50 0.178 09:25 0.379 0.275 0.275 0.14
11/24/2020 03:55 2.99 15:55 5.12 3.75 03:05 1.72 15:40 2.50 2.20 03:05 0.170 15:55 0.480 0.295 0.295 0.21
11/25/2020 03:35 2.97 13:10 4.38 3.65 01:25 1.85 19:35 2.69 2.21 01:25 0.191 15:35 0.378 0.283 0.283 0.05
11/26/2020 03:30 2.90 11:30 4.32 3.50 04:20 1.73 14:25 2.50 2.15 04:20 0.162 11:30 0.384 0.262 0.262 0.02
11/27/2020 05:05 2.83 10:40 4.14 3.50 02:45 1.74 14:30 2.45 2.17 02:45 0.172 10:40 0.368 0.265 0.265 -
11/28/2020 05:10 2.91 17:00 4.14 3.58 01:30 1.57 12:30 2.49 2.10 01:30 0.158 12:35 0.372 0.265 0.265 0.05
11/29/2020 04:55 2.88 11:35 4.40 3.51 04:35 1.78 15:25 2.69 2.19 04:35 0.176 11:35 0.375 0.266 0.266 -
11/30/2020 02:35 2.84 12:00 4.28 3.61 03:00 1.65 11:25 2.51 2.19 03:00 0.168 12:00 0.388 0.278 0.278 0.36
12/01/2020 03:15 2.80 11:50 4.20 3.57 05:00 1.75 14:35 2.47 2.15 03:20 0.158 12:35 0.359 0.269 0.269 -
12/02/2020 03:35 2.74 15:30 4.24 3.58 02:15 1.72 18:25 2.56 2.19 02:15 0.155 18:25 0.393 0.275 0.275 0.01
12/03/2020 02:15 2.81 11:45 4.25 3.54 03:00 1.70 11:25 2.53 2.18 03:00 0.155 11:25 0.380 0.271 0.271 -
12/04/2020 04:00 2.70 11:05 4.27 3.52 00:40 1.74 10:20 2.52 2.22 04:15 0.159 11:30 0.395 0.274 0.274 -
12/05/2020 07:55 2.33 08:20 5.29 3.51 07:55 1.45 10:45 2.55 2.17 07:55 0.098 08:20 0.470 0.267 0.267 0.03
12/06/2020 05:30 2.82 13:00 4.04 3.44 04:15 1.77 12:00 2.55 2.22 05:30 0.158 13:05 0.358 0.263 0.263 0.03
12/07/2020 04:25 2.87 11:55 4.24 3.51 00:50 1.83 21:05 2.64 2.25 04:25 0.177 12:35 0.395 0.275 0.275 -
12/08/2020 04:10 2.73 14:45 4.19 3.50 04:15 1.75 10:40 2.56 2.23 04:15 0.150 14:35 0.371 0.272 0.272 0.87
12/09/2020 04:25 2.88 18:15 4.67 3.61 03:15 1.79 18:25 3.20 2.18 03:15 0.174 18:10 0.404 0.277 0.277 0.17
12/10/2020 04:15 2.81 20:30 4.36 3.61 03:15 1.66 16:25 2.48 2.12 03:15 0.150 20:25 0.380 0.269 0.269 0.07
12/11/2020 04:35 2.97 11:55 4.21 3.63 22:45 1.83 20:15 2.45 2.15 02:10 0.184 12:10 0.364 0.274 0.274 0.02
12/12/2020 03:15 2.88 11:20 4.16 3.61 05:15 1.74 20:30 2.42 2.12 03:15 0.160 11:25 0.344 0.267 0.267 0.01
12/13/2020 03:40 2.81 10:35 4.06 3.61 03:40 1.54 06:15 2.44 2.04 03:40 0.136 12:20 0.333 0.260 0.260 0.24
12/14/2020 04:55 3.02 16:35 4.26 3.70 05:55 1.65 11:20 2.35 2.05 05:55 0.170 11:20 0.362 0.269 0.269 0.05
12/15/2020 03:05 3.05 16:45 4.30 3.81 02:55 1.53 12:00 2.32 2.00 02:55 0.154 13:35 0.353 0.272 0.272 0.58
12/16/2020 08:25 2.97 08:55 4.63 3.83 03:40 1.60 08:40 2.41 1.97 08:30 0.163 08:40 0.397 0.271 0.271 0.39
12/17/2020 03:55 3.13 15:55 4.19 3.75 04:50 1.66 13:10 2.24 1.95 03:50 0.176 13:10 0.336 0.260 0.260 0.08
12/18/2020 03:55 3.02 13:35 4.34 3.75 03:55 1.51 10:45 2.33 1.93 03:55 0.148 10:30 0.354 0.259 0.259 0.25
12/19/2020 03:55 3.13 13:15 4.30 3.79 03:00 1.59 14:40 2.26 1.92 04:00 0.171 14:00 0.353 0.261 0.261 0.37
12/20/2020 03:55 3.10 12:15 4.27 3.79 05:10 1.52 12:35 2.25 1.91 05:10 0.163 12:35 0.354 0.259 0.259 0.04
12/21/2020 03:35 3.23 19:55 4.87 4.07 02:50 1.59 19:30 2.19 1.93 02:50 0.179 20:00 0.408 0.289 0.289 1.07
12/22/2020 03:30 3.37 11:35 4.39 3.95 06:35 1.59 14:15 2.23 1.92 05:40 0.193 14:15 0.356 0.275 0.275 -
12/23/2020 03:25 3.05 13:00 4.31 3.83 05:10 1.54 12:40 2.23 1.90 03:25 0.164 12:45 0.353 0.263 0.263 -
12/24/2020 03:55 3.05 13:05 4.47 3.80 04:35 1.51 10:10 2.31 1.93 04:25 0.157 13:25 0.373 0.264 0.264 -
12/25/2020 07:55 1.59 08:25 4.92 3.60 07:50 0.68 10:45 2.35 1.83 07:55 0.027 08:20 0.426 0.234 0.234 0.49
12/26/2020 04:50 3.21 12:45 4.66 3.79 06:00 1.56 19:25 2.17 1.90 04:45 0.173 12:45 0.376 0.258 0.258 0.02
12/27/2020 03:35 3.25 12:00 4.40 3.84 08:30 1.63 20:35 2.35 1.92 03:35 0.185 12:00 0.347 0.264 0.264 0.13
12/28/2020 03:45 3.05 13:15 4.46 3.85 04:25 1.54 12:50 2.38 1.96 03:50 0.164 13:10 0.383 0.273 0.273 -
12/29/2020 03:45 3.08 11:00 4.25 3.78 02:55 1.64 22:10 2.23 1.97 03:40 0.168 12:40 0.339 0.267 0.267 0.14
12/30/2020 03:30 3.16 11:30 4.50 3.97 03:50 1.71 15:50 2.28 1.98 03:30 0.183 15:50 0.371 0.286 0.286 0.78
12/31/2020 02:55 3.36 15:05 4.56 3.93 04:10 1.66 18:50 2.29 1.97 04:10 0.193 15:10 0.371 0.281 0.281 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 50.442 30.65
Average 3.65 2.02 0.259
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115
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116
AUB_A6_61009K
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table .
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 4.88 0.47 0.096
Minimum 3.28 0.21 0.025
Maximum 10.05 1.32 0.400
Min Time 04/14/2021 2:00:00 AM 12/15/2020 3:00:00 AM 12/15/2020 3:00:00 AM
Max Time 01/12/2021 7:00:00 PM 01/21/2021 1:00:00 PM 01/02/2021 9:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 99.741
VFINAL (ft/s) 99.741
QFINAL (MGD - Total MG) 99.741
Pipe Elliptical (11.75 in H x 12 in W)
Silt 0.00 (in)
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4455 S. 134th Place
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Hydrograph Report
AUB_A6_61009K
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4455 S. 134th Place
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Scattergraph Report
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Page 639 of 1163
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A6_61009KPipe: Elliptical (11.75 in H x 12 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 06:40 3.84 16:10 7.40 5.23 01:10 0.30 15:40 0.93 0.46 04:00 0.045 15:40 0.270 0.102 0.102 0.51
01/02/2021 04:35 3.54 21:45 10.03 6.23 07:05 0.18 21:05 1.17 0.50 05:15 0.025 21:05 0.489 0.150 0.150 1.69
01/03/2021 06:25 5.08 00:20 10.00 7.08 05:25 0.23 00:20 0.74 0.42 06:10 0.049 00:20 0.334 0.138 0.138 0.65
01/04/2021 04:15 4.40 12:35 7.81 6.29 03:20 0.29 12:00 0.73 0.45 03:20 0.054 12:10 0.239 0.123 0.123 0.48
01/05/2021 04:45 3.73 21:30 7.66 5.72 02:05 0.23 20:50 0.73 0.43 03:05 0.032 20:50 0.239 0.110 0.110 0.52
01/06/2021 04:20 4.68 18:55 6.76 5.90 11:50 0.29 02:35 0.63 0.43 06:30 0.060 01:05 0.147 0.108 0.108 0.22
01/07/2021 04:50 3.90 19:25 6.59 5.36 05:55 0.34 17:25 0.65 0.45 04:50 0.050 18:50 0.177 0.102 0.102 -
01/08/2021 03:35 3.89 18:00 6.60 5.29 03:40 0.37 09:05 0.67 0.49 03:40 0.053 17:25 0.159 0.108 0.108 0.22
01/09/2021 05:25 3.79 13:35 6.59 5.27 04:20 0.32 08:45 0.66 0.52 05:20 0.046 10:35 0.164 0.113 0.113 -
01/10/2021 05:10 4.20 12:30 6.60 5.34 10:45 0.43 09:40 0.73 0.54 04:00 0.072 12:40 0.170 0.121 0.121 0.07
01/11/2021 04:50 4.05 21:00 7.97 6.04 04:00 0.38 10:30 0.94 0.61 04:55 0.058 11:35 0.278 0.164 0.164 1.06
01/12/2021 01:20 5.63 19:25 10.23 8.21 13:15 0.37 02:35 0.94 0.61 00:00 0.112 19:05 0.386 0.225 0.225 2.10
01/13/2021 04:50 5.71 01:00 9.20 7.01 03:10 0.31 00:20 0.72 0.45 04:40 0.075 00:40 0.288 0.142 0.142 0.09
01/14/2021 04:40 4.51 18:45 7.17 6.03 21:40 0.37 07:35 0.63 0.51 04:55 0.081 09:30 0.176 0.130 0.130 0.01
01/15/2021 04:15 4.67 18:55 6.61 5.72 05:40 0.41 21:45 0.69 0.55 04:00 0.079 18:25 0.182 0.133 0.133 0.09
01/16/2021 04:35 4.57 12:35 7.02 5.67 12:30 0.46 09:25 0.77 0.60 04:25 0.095 18:20 0.185 0.142 0.142 -
01/17/2021 02:45 4.69 12:05 6.66 5.62 05:50 0.47 09:20 0.73 0.60 05:50 0.091 11:05 0.189 0.142 0.142 0.10
01/18/2021 04:25 4.54 19:05 6.28 5.47 19:35 0.47 09:35 0.73 0.57 04:25 0.086 15:05 0.177 0.130 0.130 -
01/19/2021 04:05 4.55 18:30 6.23 5.36 02:55 0.44 13:55 0.74 0.59 03:45 0.079 17:35 0.178 0.131 0.131 0.01
01/20/2021 02:15 4.53 18:50 6.10 5.25 02:10 0.50 15:40 0.77 0.60 02:20 0.088 15:40 0.183 0.130 0.130 -
01/21/2021 03:20 4.41 13:35 7.09 5.25 03:25 0.44 13:35 1.53 0.63 03:25 0.075 13:35 0.479 0.139 0.139 0.11
01/22/2021 03:35 4.35 19:20 5.73 5.02 03:00 0.46 09:55 0.69 0.58 03:00 0.078 12:35 0.159 0.118 0.118 -
01/23/2021 05:20 4.20 12:35 6.21 5.10 04:10 0.40 12:35 0.75 0.57 04:10 0.065 12:35 0.199 0.121 0.121 -
01/24/2021 04:35 4.20 18:30 6.25 5.24 04:25 0.44 18:30 0.76 0.60 04:30 0.070 18:30 0.205 0.131 0.131 0.16
01/25/2021 04:30 4.17 18:40 5.85 5.01 04:30 0.42 18:30 0.65 0.56 04:30 0.067 18:40 0.161 0.114 0.114 0.04
01/26/2021 04:55 4.06 19:10 5.85 4.96 04:40 0.37 19:25 0.75 0.55 04:50 0.056 19:25 0.180 0.111 0.111 -
01/27/2021 04:20 4.18 19:50 5.83 4.96 03:40 0.39 19:25 0.66 0.55 04:20 0.062 19:45 0.163 0.111 0.111 0.14
01/28/2021 03:30 4.10 19:25 5.74 4.99 03:30 0.36 19:25 0.66 0.55 03:30 0.056 18:55 0.158 0.113 0.113 0.24
01/29/2021 04:15 3.95 19:00 5.52 4.81 04:15 0.31 17:25 0.63 0.52 04:15 0.046 19:00 0.146 0.102 0.102 0.03
01/30/2021 05:50 3.96 13:25 5.98 4.93 05:50 0.32 17:20 0.60 0.47 05:50 0.047 17:25 0.138 0.095 0.095 0.07
01/31/2021 05:15 3.92 12:55 5.97 5.01 05:00 0.29 10:10 0.67 0.47 05:05 0.042 11:25 0.153 0.096 0.096 0.12
02/01/2021 03:15 4.05 19:20 7.17 5.33 01:00 0.38 23:55 0.83 0.54 03:15 0.057 19:00 0.233 0.122 0.122 0.82
02/02/2021 04:15 3.87 19:05 6.58 5.44 03:30 0.31 08:30 0.88 0.50 03:30 0.045 00:00 0.226 0.115 0.115 0.31
02/03/2021 04:20 3.85 19:45 6.06 5.04 03:25 0.28 17:05 0.58 0.46 03:25 0.041 19:05 0.141 0.094 0.094 0.06
02/04/2021 03:20 3.91 20:50 5.97 4.89 01:20 0.34 13:15 0.61 0.49 01:20 0.051 20:55 0.145 0.097 0.097 0.07
02/05/2021 04:20 3.83 17:35 5.59 4.78 03:05 0.30 17:45 0.60 0.46 04:15 0.042 17:45 0.139 0.089 0.089 0.01
02/06/2021 03:40 3.74 12:10 6.28 4.96 05:40 0.29 08:45 0.59 0.45 03:30 0.041 12:15 0.156 0.092 0.092 0.01
02/07/2021 06:00 3.71 13:45 6.34 4.92 06:00 0.29 09:10 0.59 0.46 06:00 0.039 11:30 0.148 0.092 0.092 -
02/08/2021 04:05 3.66 19:30 5.64 4.74 03:15 0.26 18:00 0.64 0.46 04:10 0.034 18:00 0.139 0.089 0.089 -
02/09/2021 04:45 3.79 19:35 5.62 4.70 04:55 0.30 13:15 0.66 0.48 04:55 0.042 18:00 0.144 0.092 0.092 -
02/10/2021 02:05 3.73 20:10 5.63 4.66 04:50 0.30 11:35 0.66 0.48 04:50 0.041 14:00 0.135 0.091 0.091 -
02/11/2021 03:15 3.73 19:55 5.58 4.64 03:30 0.26 14:10 0.70 0.47 03:30 0.036 14:10 0.146 0.089 0.089 -
02/12/2021 04:05 3.62 18:35 5.45 4.63 04:05 0.25 09:00 0.73 0.48 04:05 0.033 09:00 0.151 0.089 0.089 -
02/13/2021 04:20 3.77 13:45 6.37 5.31 04:15 0.30 09:30 0.61 0.40 04:35 0.041 13:40 0.126 0.089 0.089 0.08
02/14/2021 23:45 4.66 09:30 6.38 5.47 04:45 0.19 09:35 0.78 0.42 03:25 0.041 09:35 0.163 0.096 0.096 0.71
02/15/2021 05:45 4.36 14:10 8.60 6.35 22:50 0.41 13:05 0.77 0.58 05:45 0.081 14:15 0.284 0.161 0.161 0.78
02/16/2021 04:15 4.10 19:55 6.52 5.48 02:40 0.30 13:55 0.56 0.44 02:40 0.052 13:55 0.147 0.101 0.101 0.07
02/17/2021 04:05 3.75 19:15 6.06 5.00 04:00 0.28 18:10 0.69 0.47 04:00 0.038 18:10 0.164 0.096 0.096 -
02/18/2021 04:20 3.81 18:50 5.90 4.92 02:20 0.34 11:35 0.68 0.49 04:20 0.048 11:35 0.149 0.099 0.099 0.09
02/19/2021 04:25 3.76 19:45 6.15 4.89 04:20 0.30 19:15 0.67 0.47 04:25 0.040 19:20 0.176 0.093 0.093 0.17
02/20/2021 05:35 3.67 12:45 6.21 4.96 05:25 0.29 23:25 0.61 0.45 05:30 0.038 12:10 0.148 0.092 0.092 0.07
02/21/2021 06:30 3.68 23:40 6.77 5.08 02:55 0.29 23:10 1.00 0.47 02:55 0.040 23:40 0.291 0.102 0.102 0.42
02/22/2021 05:35 4.33 13:30 8.93 6.38 22:55 0.31 00:00 0.93 0.56 05:35 0.079 13:05 0.322 0.153 0.153 0.98
02/23/2021 03:55 3.81 22:10 7.57 5.52 02:40 0.28 21:15 0.79 0.46 02:40 0.041 21:25 0.246 0.111 0.111 0.27
02/24/2021 04:00 4.00 20:00 6.40 5.30 04:05 0.37 07:05 0.59 0.47 04:00 0.056 18:40 0.155 0.103 0.103 -
02/25/2021 03:05 4.08 19:45 6.27 5.24 02:00 0.37 05:05 0.64 0.48 03:10 0.056 19:10 0.141 0.103 0.103 0.18
02/26/2021 04:15 4.03 19:20 5.97 5.07 04:10 0.35 22:25 0.66 0.50 04:10 0.054 20:05 0.147 0.105 0.105 0.10
02/27/2021 05:10 3.97 11:45 6.34 5.10 05:10 0.36 08:45 0.69 0.51 05:10 0.053 13:15 0.180 0.108 0.108 0.02
02/28/2021 04:05 3.98 13:05 6.39 5.17 03:35 0.35 18:15 0.64 0.50 03:35 0.053 15:05 0.163 0.107 0.107 0.02
03/01/2021 03:15 3.93 20:25 5.95 4.96 03:10 0.34 12:00 0.66 0.52 03:10 0.050 18:35 0.157 0.105 0.105 -
03/02/2021 04:20 3.99 19:55 6.04 4.87 04:05 0.31 13:10 0.66 0.50 04:05 0.047 13:10 0.143 0.100 0.100 -
03/03/2021 02:40 3.85 19:20 5.87 4.83 02:35 0.31 15:55 0.65 0.50 02:35 0.044 21:20 0.146 0.098 0.098 -
03/04/2021 03:30 3.89 20:25 6.26 4.83 03:35 0.30 10:05 0.69 0.51 03:30 0.044 19:35 0.175 0.100 0.100 0.20
03/05/2021 04:30 3.87 19:20 5.48 4.78 04:30 0.32 11:45 0.70 0.50 04:30 0.046 11:45 0.154 0.096 0.096 0.05
03/06/2021 05:10 3.70 13:20 6.10 4.85 04:55 0.28 15:15 0.67 0.48 05:00 0.038 15:15 0.155 0.096 0.096 -
03/07/2021 04:25 3.68 12:15 5.98 4.90 04:20 0.27 12:20 0.63 0.46 04:20 0.036 12:20 0.157 0.094 0.094 0.04
03/08/2021 03:20 3.76 20:40 5.81 4.74 03:15 0.29 10:20 0.61 0.46 03:15 0.040 20:40 0.136 0.088 0.088 -
03/09/2021 03:55 3.70 21:20 5.54 4.68 03:10 0.26 16:25 0.65 0.48 03:50 0.035 19:10 0.137 0.090 0.090 0.01
03/10/2021 03:00 3.61 19:40 5.58 4.58 03:25 0.27 17:20 0.63 0.46 03:25 0.035 20:45 0.135 0.084 0.084 -
03/11/2021 04:05 3.53 20:20 5.38 4.55 04:00 0.23 12:15 0.61 0.45 04:00 0.029 17:30 0.122 0.082 0.082 -
Page 640 of 1163
120
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:00 3.52 19:20 5.56 4.51 03:25 0.26 18:55 0.62 0.44 04:00 0.032 18:55 0.127 0.079 0.079 -
03/13/2021 04:40 3.39 11:50 5.71 4.60 04:35 0.21 08:50 0.61 0.43 04:35 0.025 10:50 0.136 0.080 0.080 -
03/14/2021 04:25 3.41 20:00 6.05 4.80 02:25 0.25 13:30 0.83 0.45 02:25 0.030 13:30 0.204 0.090 0.090 0.30
03/15/2021 02:30 3.39 19:45 5.61 4.63 02:30 0.21 10:35 0.59 0.44 02:30 0.025 19:40 0.120 0.083 0.083 -
03/16/2021 01:15 3.55 19:40 5.75 4.59 02:20 0.24 13:00 0.61 0.42 01:15 0.032 19:40 0.131 0.078 0.078 -
03/17/2021 03:35 3.35 20:00 5.44 4.51 03:25 0.21 18:20 0.70 0.44 03:25 0.025 18:20 0.145 0.080 0.080 -
03/18/2021 02:15 3.51 19:20 5.56 4.54 03:15 0.25 16:20 0.89 0.45 03:15 0.031 16:20 0.202 0.082 0.082 0.11
03/19/2021 03:20 3.51 19:50 5.27 4.51 03:15 0.26 13:10 0.69 0.46 03:15 0.032 19:55 0.140 0.083 0.083 0.03
03/20/2021 04:55 3.31 12:40 5.72 4.72 04:55 0.20 06:00 0.66 0.44 04:55 0.023 11:45 0.132 0.085 0.085 0.17
03/21/2021 04:20 3.29 11:40 5.92 4.66 04:50 0.21 16:35 0.76 0.44 04:55 0.024 16:35 0.168 0.084 0.084 0.07
03/22/2021 02:00 3.58 20:15 5.67 4.75 01:55 0.27 07:45 0.68 0.45 02:00 0.034 12:05 0.130 0.087 0.087 0.11
03/23/2021 02:30 3.38 19:10 5.63 4.57 02:15 0.21 15:05 0.65 0.45 02:30 0.024 16:40 0.131 0.083 0.083 -
03/24/2021 03:20 3.32 20:10 6.05 4.60 03:05 0.21 19:35 0.89 0.50 03:05 0.025 19:35 0.219 0.093 0.093 0.34
03/25/2021 03:00 3.96 20:10 5.86 4.87 03:05 0.34 01:00 0.75 0.49 03:05 0.051 01:00 0.154 0.097 0.097 0.27
03/26/2021 03:00 3.55 18:55 5.41 4.59 02:55 0.28 17:15 0.65 0.47 02:55 0.035 17:15 0.136 0.087 0.087 -
03/27/2021 05:00 3.49 11:30 5.83 4.66 02:25 0.24 10:00 0.61 0.45 02:25 0.030 10:30 0.142 0.087 0.087 -
03/28/2021 05:40 3.58 15:25 6.97 4.97 05:40 0.26 14:50 0.87 0.48 05:40 0.034 14:50 0.252 0.102 0.102 0.37
03/29/2021 03:20 3.64 20:10 5.70 4.65 01:45 0.29 10:25 0.64 0.45 01:50 0.038 11:10 0.134 0.085 0.085 -
03/30/2021 03:45 3.32 19:15 5.51 4.49 03:45 0.23 15:30 0.69 0.44 03:45 0.026 15:30 0.141 0.079 0.079 -
03/31/2021 03:40 3.30 19:50 5.48 4.52 03:40 0.23 14:00 0.69 0.48 03:40 0.026 19:15 0.142 0.087 0.087 -
04/01/2021 03:15 3.57 19:50 5.34 4.52 03:15 0.28 09:10 0.68 0.46 03:15 0.036 09:10 0.130 0.083 0.083 -
04/02/2021 03:15 3.50 11:20 5.34 4.60 03:10 0.26 23:35 0.63 0.47 03:10 0.032 21:00 0.122 0.087 0.087 -
04/03/2021 03:55 3.71 10:50 5.91 4.73 03:50 0.27 18:35 0.61 0.46 03:50 0.036 10:45 0.138 0.088 0.088 -
04/04/2021 02:35 3.79 11:55 6.00 4.70 02:35 0.27 10:25 0.63 0.46 02:35 0.037 12:00 0.148 0.089 0.089 -
04/05/2021 02:50 3.63 20:45 5.34 4.56 02:45 0.20 09:15 0.62 0.45 02:50 0.026 19:55 0.120 0.083 0.083 -
04/06/2021 03:05 3.65 19:55 5.43 4.62 01:50 0.27 12:30 0.69 0.49 01:55 0.035 18:25 0.142 0.091 0.091 -
04/07/2021 03:10 3.91 18:35 5.40 4.69 00:35 0.26 23:50 0.72 0.49 03:10 0.037 23:50 0.146 0.092 0.092 0.22
04/08/2021 02:55 3.61 20:05 5.33 4.59 02:45 0.29 00:00 0.69 0.49 02:50 0.038 19:35 0.139 0.089 0.089 -
04/09/2021 04:15 3.66 19:05 5.02 4.47 02:35 0.26 10:20 0.63 0.48 03:00 0.035 10:20 0.124 0.084 0.084 0.03
04/10/2021 04:00 3.55 11:45 5.65 4.60 01:45 0.23 20:00 0.67 0.46 03:55 0.029 12:45 0.138 0.085 0.085 0.02
04/11/2021 03:35 3.53 10:25 5.76 4.66 03:00 0.27 16:30 0.65 0.48 03:00 0.034 11:20 0.146 0.090 0.090 -
04/12/2021 02:05 3.41 19:35 5.47 4.50 02:00 0.27 08:30 0.66 0.47 02:00 0.032 08:30 0.124 0.085 0.085 -
04/13/2021 03:45 3.26 19:40 5.45 4.42 03:50 0.24 08:15 0.66 0.46 03:40 0.028 19:25 0.127 0.082 0.082 -
04/14/2021 02:10 3.13 21:10 6.48 4.41 02:00 0.21 10:40 0.65 0.46 02:05 0.022 10:40 0.127 0.080 0.080 -
09/22/2020 23:35 3.79 19:35 5.29 4.64 23:35 0.32 19:05 0.61 0.52 23:35 0.044 19:35 0.132 0.096 0.045 -
09/23/2020 02:35 3.30 17:30 7.04 4.97 02:30 0.20 11:25 1.19 0.56 02:35 0.023 16:55 0.338 0.121 0.121 -
09/24/2020 01:30 3.66 19:10 5.52 4.55 01:10 0.20 19:00 0.65 0.45 01:15 0.026 19:00 0.141 0.082 0.082 -
09/25/2020 02:40 3.31 12:15 6.07 4.69 02:45 0.19 12:15 1.06 0.51 02:45 0.022 12:15 0.275 0.101 0.101 -
09/26/2020 03:30 3.32 10:45 5.68 4.54 03:10 0.19 09:15 0.69 0.44 03:10 0.024 10:30 0.148 0.082 0.082 -
09/27/2020 05:05 3.37 11:55 5.84 4.58 02:55 0.20 08:55 0.64 0.43 02:55 0.024 10:55 0.149 0.082 0.082 -
09/28/2020 01:55 3.28 19:35 5.43 4.47 01:45 0.20 15:50 0.63 0.44 01:50 0.022 10:10 0.127 0.079 0.079 -
09/29/2020 02:30 3.20 19:50 5.31 4.43 00:45 0.18 11:05 0.68 0.45 02:25 0.021 11:05 0.143 0.080 0.080 -
09/30/2020 03:10 3.78 20:00 5.45 4.53 03:20 0.15 20:05 0.62 0.44 03:20 0.025 20:05 0.136 0.080 0.080 -
10/01/2020 03:20 3.50 20:05 5.40 4.49 02:30 0.22 18:20 0.62 0.45 03:15 0.028 19:55 0.131 0.081 0.081 -
10/02/2020 02:30 3.46 19:30 5.10 4.47 02:25 0.19 10:05 0.65 0.44 02:25 0.024 10:05 0.129 0.079 0.079 -
10/03/2020 05:25 3.38 11:30 5.53 4.48 04:15 0.21 10:50 0.64 0.45 04:15 0.026 10:50 0.143 0.082 0.082 0.01
10/04/2020 04:10 3.27 11:20 5.48 4.49 04:05 0.20 20:20 0.70 0.46 04:05 0.023 20:20 0.150 0.085 0.085 0.01
10/05/2020 23:55 3.64 19:15 5.37 4.51 23:55 0.28 17:40 0.67 0.47 23:55 0.037 19:20 0.140 0.085 0.085 -
10/06/2020 01:45 3.42 19:00 5.28 4.43 01:40 0.22 19:40 0.65 0.45 01:40 0.027 19:40 0.140 0.081 0.081 -
10/07/2020 03:40 3.37 20:25 5.35 4.41 02:05 0.23 12:05 0.62 0.46 02:05 0.027 20:25 0.129 0.082 0.082 -
10/08/2020 03:10 3.32 19:25 5.23 4.37 04:40 0.20 17:30 0.63 0.45 03:10 0.026 19:15 0.127 0.078 0.078 -
10/09/2020 03:10 3.46 23:55 7.00 4.52 02:35 0.22 23:20 1.34 0.50 03:10 0.027 23:20 0.386 0.095 0.095 0.64
10/10/2020 23:55 3.95 02:15 8.04 5.48 23:20 0.33 01:40 1.66 0.61 23:55 0.048 01:40 0.539 0.146 0.146 1.04
10/11/2020 04:15 3.32 15:00 6.40 4.91 04:15 0.20 18:00 0.99 0.48 04:15 0.023 18:00 0.259 0.103 0.103 0.53
10/12/2020 02:10 3.53 18:00 5.44 4.55 01:45 0.23 16:55 0.60 0.43 01:45 0.029 18:00 0.135 0.079 0.079 -
10/13/2020 00:55 3.52 07:55 6.86 4.89 00:50 0.26 07:30 1.16 0.51 00:55 0.032 07:30 0.316 0.104 0.104 0.61
10/14/2020 04:20 3.30 20:05 5.46 4.47 02:10 0.21 17:50 0.64 0.44 02:15 0.025 20:10 0.143 0.080 0.080 -
10/15/2020 03:15 3.45 18:40 5.45 4.52 02:55 0.25 15:20 0.68 0.48 03:05 0.031 18:00 0.138 0.087 0.087 -
10/16/2020 02:35 3.49 11:45 5.03 4.43 02:35 0.27 11:45 0.70 0.48 02:35 0.034 11:45 0.142 0.084 0.084 -
10/17/2020 04:40 3.62 12:05 5.46 4.53 04:15 0.29 12:15 0.67 0.48 04:15 0.038 12:10 0.149 0.088 0.088 0.01
10/18/2020 03:50 3.44 12:25 5.72 4.62 03:50 0.23 18:25 0.68 0.48 03:50 0.028 11:50 0.154 0.092 0.092 0.03
10/19/2020 03:20 3.46 19:00 5.46 4.52 03:15 0.23 16:05 0.68 0.48 03:10 0.029 16:05 0.141 0.087 0.087 0.05
10/20/2020 03:10 3.42 18:35 5.37 4.48 01:55 0.22 18:10 0.63 0.45 03:05 0.026 18:10 0.130 0.082 0.082 -
10/21/2020 01:50 3.41 18:45 5.34 4.47 01:45 0.20 18:00 0.65 0.45 01:50 0.024 18:00 0.138 0.082 0.082 0.01
10/22/2020 02:50 3.39 20:35 5.23 4.39 02:45 0.23 16:20 0.66 0.45 02:40 0.028 20:35 0.129 0.079 0.079 -
10/23/2020 03:15 3.31 20:15 5.27 4.40 02:15 0.20 19:15 0.66 0.46 02:15 0.023 19:50 0.138 0.082 0.082 0.20
10/24/2020 05:00 3.32 11:30 5.71 4.53 05:10 0.21 14:25 0.76 0.45 05:10 0.025 14:30 0.171 0.082 0.082 0.02
10/25/2020 03:25 3.49 12:10 5.53 4.55 03:25 0.22 11:00 0.68 0.46 03:25 0.027 11:00 0.153 0.085 0.085 -
10/26/2020 02:35 3.27 19:30 5.40 4.44 02:35 0.19 16:10 0.67 0.47 02:30 0.022 12:00 0.135 0.083 0.083 -
10/27/2020 03:10 3.54 19:05 5.45 4.47 03:20 0.22 20:00 0.68 0.46 03:20 0.028 20:00 0.152 0.083 0.083 -
10/28/2020 01:45 3.40 18:55 5.36 4.42 02:40 0.20 12:15 0.64 0.46 02:35 0.025 18:55 0.130 0.082 0.082 -
10/29/2020 04:15 3.67 19:35 5.39 4.60 02:05 0.22 16:30 0.61 0.43 02:05 0.032 18:25 0.125 0.079 0.079 -
10/30/2020 02:35 3.52 13:55 5.28 4.49 02:35 0.21 05:50 0.67 0.45 02:20 0.027 05:50 0.136 0.082 0.082 0.10
10/31/2020 03:30 3.38 11:45 5.88 4.44 05:10 0.21 14:00 0.64 0.44 04:30 0.027 10:40 0.140 0.079 0.079 -
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121
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 04:00 3.25 13:20 6.08 4.68 02:25 0.17 12:55 0.70 0.43 02:25 0.022 12:55 0.167 0.085 0.085 -
11/02/2020 03:40 3.42 17:15 6.64 5.38 02:50 0.20 10:15 0.69 0.38 02:50 0.025 10:15 0.148 0.088 0.088 -
11/03/2020 23:35 4.21 10:35 7.00 5.43 02:35 0.20 10:05 1.23 0.52 04:05 0.039 10:10 0.334 0.119 0.119 0.83
11/04/2020 03:30 3.32 19:25 5.27 4.46 03:00 0.19 16:55 0.67 0.46 03:30 0.024 16:55 0.132 0.083 0.083 0.09
11/05/2020 04:35 3.69 18:10 5.46 4.70 04:40 0.26 15:25 0.77 0.48 04:40 0.035 15:30 0.170 0.092 0.092 0.34
11/06/2020 05:15 3.54 17:30 5.03 4.49 05:05 0.26 12:15 0.66 0.46 05:15 0.032 12:15 0.131 0.083 0.083 0.10
11/07/2020 05:15 3.38 13:30 5.48 4.54 05:10 0.26 10:15 0.64 0.46 05:15 0.031 13:45 0.142 0.085 0.085 0.07
11/08/2020 06:10 3.53 12:30 5.47 4.62 04:10 0.21 19:25 0.65 0.45 04:50 0.029 12:40 0.140 0.086 0.086 0.01
11/09/2020 04:25 3.40 20:05 5.29 4.42 04:25 0.23 13:50 0.69 0.47 04:25 0.027 13:50 0.135 0.084 0.084 0.04
11/10/2020 03:05 3.42 19:00 5.30 4.41 03:10 0.25 17:35 0.66 0.46 03:05 0.031 17:35 0.132 0.080 0.080 0.03
11/11/2020 04:20 3.57 19:30 5.28 4.48 04:10 0.22 16:50 0.68 0.46 04:10 0.029 19:35 0.141 0.084 0.084 -
11/12/2020 02:25 3.77 20:20 5.52 4.66 02:15 0.30 17:20 0.70 0.51 02:15 0.041 17:00 0.142 0.096 0.096 0.16
11/13/2020 01:15 3.84 06:45 5.93 4.78 01:15 0.31 06:45 1.05 0.54 01:15 0.044 06:45 0.263 0.104 0.104 0.38
11/14/2020 04:45 3.55 19:05 6.79 4.90 04:45 0.25 18:10 0.94 0.53 04:45 0.032 18:20 0.266 0.112 0.112 0.47
11/15/2020 05:30 3.58 13:35 5.78 4.81 05:20 0.26 20:15 0.70 0.47 05:30 0.033 20:15 0.160 0.093 0.093 0.19
11/16/2020 04:20 3.58 13:50 6.62 4.86 04:20 0.26 13:35 1.03 0.52 04:20 0.033 13:50 0.292 0.107 0.107 0.31
11/17/2020 03:10 3.55 20:10 6.20 4.70 05:25 0.19 08:55 0.94 0.48 05:25 0.031 08:55 0.225 0.093 0.093 0.20
11/18/2020 03:35 3.42 18:30 6.07 4.73 03:30 0.24 17:35 0.93 0.48 03:35 0.029 17:45 0.225 0.095 0.095 0.30
11/19/2020 02:40 3.49 13:25 6.53 4.94 02:40 0.25 12:55 1.21 0.52 02:40 0.032 13:00 0.329 0.107 0.107 0.50
11/20/2020 01:35 3.85 18:50 5.47 4.73 02:25 0.17 15:20 0.66 0.43 02:25 0.031 16:20 0.144 0.081 0.081 0.01
11/21/2020 04:00 3.45 13:10 5.83 4.71 01:55 0.21 09:25 0.63 0.44 03:50 0.028 15:05 0.146 0.086 0.086 -
11/22/2020 04:05 3.86 12:55 5.85 4.94 04:05 0.24 16:25 0.72 0.45 04:05 0.034 16:25 0.158 0.093 0.093 0.21
11/23/2020 05:00 3.41 20:00 5.58 4.69 05:00 0.24 10:40 0.58 0.44 05:00 0.029 18:15 0.118 0.083 0.083 0.14
11/24/2020 01:55 3.67 16:35 6.30 4.77 01:55 0.22 15:55 1.02 0.49 01:55 0.029 16:10 0.259 0.097 0.097 0.21
11/25/2020 02:05 3.73 20:25 5.44 4.68 02:55 0.25 20:25 0.62 0.46 03:00 0.034 20:25 0.139 0.087 0.087 0.05
11/26/2020 04:25 3.93 12:20 6.67 4.94 04:25 0.25 10:35 0.59 0.44 04:25 0.037 12:55 0.164 0.091 0.091 0.02
11/27/2020 03:35 3.71 13:25 5.56 4.59 03:35 0.25 17:30 0.70 0.45 03:35 0.034 17:30 0.138 0.083 0.083 -
11/28/2020 06:00 3.69 12:20 5.74 4.66 06:00 0.25 18:50 0.58 0.43 06:00 0.033 12:20 0.131 0.081 0.081 0.05
11/29/2020 05:10 3.51 14:00 5.83 4.69 05:15 0.20 09:55 0.58 0.44 05:15 0.025 12:35 0.132 0.086 0.086 -
11/30/2020 03:20 3.48 18:15 5.54 4.83 03:20 0.20 05:00 0.82 0.48 03:20 0.024 05:00 0.188 0.095 0.095 0.36
12/01/2020 03:40 3.45 18:45 5.51 4.60 04:15 0.19 12:55 0.59 0.43 04:15 0.024 18:45 0.134 0.080 0.080 -
12/02/2020 04:15 3.61 20:35 5.41 4.60 05:45 0.23 17:35 0.62 0.42 04:15 0.032 12:50 0.129 0.078 0.078 0.01
12/03/2020 04:15 3.77 19:20 5.39 4.62 04:10 0.29 13:15 0.62 0.47 04:10 0.040 13:15 0.122 0.088 0.088 -
12/04/2020 01:30 3.66 18:20 5.13 4.54 03:45 0.21 22:10 0.65 0.43 03:35 0.029 22:10 0.127 0.079 0.079 -
12/05/2020 05:35 3.32 13:15 5.65 4.60 00:30 0.21 15:50 0.64 0.43 05:40 0.024 12:30 0.146 0.080 0.080 0.03
12/06/2020 05:50 3.37 13:30 5.84 4.67 03:40 0.18 17:25 0.63 0.42 05:50 0.022 17:20 0.130 0.082 0.082 0.03
12/07/2020 04:20 3.45 19:40 5.32 4.53 04:15 0.22 10:00 0.68 0.44 04:20 0.027 10:00 0.127 0.080 0.080 -
12/08/2020 04:20 3.62 20:10 6.68 5.09 03:50 0.26 16:25 0.88 0.52 03:55 0.034 16:20 0.221 0.114 0.114 0.87
12/09/2020 05:05 3.73 19:55 5.65 4.82 05:05 0.28 03:00 0.57 0.45 05:05 0.038 12:35 0.119 0.088 0.088 0.17
12/10/2020 03:25 3.53 21:00 5.63 4.61 03:20 0.23 20:30 0.66 0.44 03:20 0.029 20:30 0.152 0.082 0.082 0.07
12/11/2020 04:00 3.49 18:00 5.38 4.53 03:45 0.23 17:30 0.62 0.43 03:50 0.029 17:55 0.130 0.078 0.078 0.02
12/12/2020 04:25 3.49 13:10 5.72 4.62 03:15 0.22 21:45 0.58 0.41 04:25 0.027 11:45 0.127 0.077 0.077 0.01
12/13/2020 06:10 3.38 12:55 6.14 4.80 06:05 0.21 09:40 0.68 0.47 06:10 0.024 10:40 0.165 0.094 0.094 0.24
12/14/2020 03:05 3.55 19:05 5.55 4.63 04:10 0.23 19:00 0.62 0.47 03:05 0.030 19:00 0.143 0.089 0.089 0.05
12/15/2020 03:40 3.31 16:35 6.96 4.94 03:40 0.17 16:05 1.14 0.44 03:35 0.020 16:10 0.320 0.094 0.094 0.58
12/16/2020 01:30 3.66 15:15 6.41 4.93 01:30 0.28 15:00 0.88 0.47 01:30 0.037 15:00 0.235 0.098 0.098 0.39
12/17/2020 03:30 3.45 19:20 5.65 4.70 03:45 0.22 17:50 0.61 0.42 03:45 0.027 17:50 0.138 0.080 0.080 0.08
12/18/2020 03:10 3.59 19:40 5.64 4.72 03:05 0.24 19:20 0.60 0.44 03:05 0.032 19:25 0.140 0.084 0.084 0.25
12/19/2020 03:45 3.40 18:15 6.29 5.01 03:45 0.21 20:40 0.81 0.48 03:45 0.025 20:40 0.218 0.103 0.103 0.37
12/20/2020 05:15 3.52 14:20 6.23 4.92 05:05 0.21 18:45 0.60 0.44 05:15 0.026 14:15 0.156 0.090 0.090 0.04
12/21/2020 02:05 4.12 18:50 8.58 5.93 10:55 0.31 16:30 1.04 0.54 02:05 0.068 16:35 0.328 0.137 0.137 1.07
12/22/2020 04:20 3.67 20:55 6.12 5.18 02:40 0.23 20:55 0.74 0.38 04:15 0.032 20:55 0.192 0.083 0.083 -
12/23/2020 04:20 3.43 12:30 5.83 4.84 02:55 0.22 19:45 0.51 0.39 03:00 0.027 19:45 0.118 0.078 0.078 -
12/24/2020 04:35 3.48 12:20 6.20 4.91 05:15 0.20 17:15 0.55 0.41 05:15 0.026 12:35 0.133 0.083 0.083 -
12/25/2020 05:35 3.47 17:35 5.96 4.77 05:30 0.23 21:40 0.54 0.41 05:35 0.028 18:35 0.127 0.080 0.080 0.49
12/26/2020 05:25 3.39 13:25 6.17 4.77 05:05 0.21 11:40 0.57 0.40 05:05 0.025 13:35 0.144 0.079 0.079 0.02
12/27/2020 06:30 3.47 13:00 6.33 4.91 05:50 0.19 09:50 0.69 0.40 05:50 0.023 09:50 0.165 0.083 0.083 0.13
12/28/2020 03:35 3.51 14:55 5.70 4.75 03:25 0.24 11:00 0.62 0.44 03:25 0.031 14:40 0.143 0.085 0.085 -
12/29/2020 03:50 3.49 20:25 6.05 4.68 03:50 0.20 19:45 0.72 0.43 03:50 0.025 19:45 0.175 0.083 0.083 0.14
12/30/2020 01:25 4.09 18:05 6.12 5.49 01:00 0.36 06:35 0.88 0.53 01:00 0.057 06:50 0.208 0.120 0.120 0.78
12/31/2020 05:50 3.94 18:55 6.34 5.21 05:50 0.30 00:00 0.71 0.44 05:50 0.044 00:05 0.166 0.095 0.095 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 19.631 30.65
Average 4.88 0.47 0.096
Page 642 of 1163
122
Page 643 of 1163
123
AUB_A7_70807
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced some backwater conditions during the monitoring period.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 3.15 1.15 0.166
Minimum 1.65 0.40 0.030
Maximum 6.64 2.37 0.908
Min Time 11/01/2020 3:00:00 AM 11/29/2020 5:00:00 AM 11/01/2020 4:00:00 AM
Max Time 01/12/2021 9:00:00 AM 01/12/2021 9:00:00 AM 01/12/2021 9:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 89.609
VFINAL (ft/s) 89.609
QFINAL (MGD - Total MG) 89.609
Pipe Elliptical (18 in H x 18 in W)
Silt 0.00 (in)
Page 644 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A7_70807
Page 645 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A7_70807
Page 646 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A7_70807Pipe: Elliptical (18 in H x 18 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 01:50 2.58 15:40 4.63 3.27 01:30 1.00 15:40 1.76 1.25 01:50 0.100 15:40 0.409 0.182 0.182 0.51
01/02/2021 04:40 2.82 21:15 6.82 3.91 04:25 1.08 21:15 2.40 1.48 04:25 0.125 21:15 0.952 0.300 0.300 1.69
01/03/2021 22:25 3.98 00:20 6.62 4.85 22:25 1.50 00:20 2.40 1.85 22:25 0.282 00:20 0.913 0.471 0.471 0.65
01/04/2021 23:45 3.85 08:35 5.98 4.53 23:45 1.42 08:35 2.16 1.72 23:45 0.255 08:35 0.718 0.391 0.391 0.48
01/05/2021 03:35 3.58 21:10 5.14 4.20 06:00 1.34 21:05 1.94 1.57 06:00 0.216 21:05 0.520 0.321 0.321 0.52
01/06/2021 23:30 3.45 12:35 5.49 4.29 23:30 1.31 12:35 2.07 1.61 23:30 0.200 12:35 0.610 0.341 0.341 0.22
01/07/2021 04:35 3.22 11:50 4.96 3.69 03:05 1.20 11:50 1.88 1.40 04:35 0.168 11:50 0.481 0.239 0.239 -
01/08/2021 04:50 2.92 08:40 4.52 3.48 04:50 1.09 08:40 1.70 1.32 04:50 0.131 08:40 0.383 0.208 0.208 0.22
01/09/2021 05:40 2.73 11:15 3.60 3.00 22:55 1.01 11:20 1.35 1.12 22:55 0.110 11:20 0.219 0.142 0.142 -
01/10/2021 02:35 2.55 13:45 4.69 2.96 01:25 0.95 13:45 1.76 1.11 02:35 0.094 13:45 0.418 0.139 0.139 0.07
01/11/2021 04:50 2.47 12:35 5.20 3.94 04:55 0.91 21:15 1.99 1.47 04:50 0.086 21:20 0.538 0.292 0.292 1.06
01/12/2021 00:35 4.30 09:40 7.02 5.83 00:30 1.63 09:40 2.47 2.13 00:35 0.341 09:40 1.019 0.690 0.690 2.10
01/13/2021 23:25 3.69 00:45 6.57 4.83 23:10 1.37 00:40 2.38 1.78 23:10 0.232 00:45 0.893 0.452 0.452 0.09
01/14/2021 21:15 3.33 13:40 4.89 3.90 21:15 1.24 13:40 1.87 1.47 21:15 0.180 13:40 0.468 0.271 0.271 0.01
01/15/2021 23:55 2.94 14:25 4.64 3.58 23:55 1.11 14:25 1.76 1.35 23:55 0.135 14:25 0.411 0.221 0.221 0.09
01/16/2021 05:20 2.71 08:10 3.71 3.08 03:35 1.00 01:00 1.45 1.17 03:35 0.109 01:00 0.245 0.153 0.153 -
01/17/2021 01:20 2.63 16:40 4.62 3.08 01:25 0.99 16:40 1.81 1.19 01:25 0.102 16:40 0.418 0.158 0.158 0.10
01/18/2021 02:25 2.58 06:55 4.58 3.28 04:45 0.98 06:55 1.77 1.26 02:25 0.099 06:55 0.404 0.184 0.184 -
01/19/2021 06:10 2.56 12:55 4.59 3.32 06:10 0.99 12:55 1.68 1.26 06:10 0.098 12:55 0.385 0.187 0.187 0.01
01/20/2021 03:00 2.51 07:40 4.35 3.27 03:00 0.93 07:40 1.66 1.25 03:00 0.090 07:40 0.353 0.181 0.181 -
01/21/2021 02:00 2.49 13:15 4.47 3.26 01:55 0.96 13:15 1.67 1.26 01:55 0.092 13:15 0.370 0.181 0.181 0.11
01/22/2021 03:35 2.52 23:40 4.06 3.09 03:35 0.97 23:40 1.62 1.19 03:35 0.094 23:40 0.312 0.158 0.158 -
01/23/2021 02:50 2.28 03:10 3.64 2.75 02:55 0.85 03:10 1.42 1.06 02:50 0.072 03:10 0.236 0.119 0.119 -
01/24/2021 05:25 2.22 11:40 4.37 2.81 03:30 0.84 11:35 1.69 1.07 05:20 0.068 11:35 0.360 0.126 0.126 0.16
01/25/2021 03:20 2.38 10:40 4.50 3.19 03:25 0.89 10:35 1.71 1.21 03:20 0.080 10:35 0.380 0.172 0.172 0.04
01/26/2021 04:10 2.41 11:45 4.12 3.16 04:05 0.91 12:35 1.60 1.21 04:10 0.083 12:35 0.309 0.167 0.167 -
01/27/2021 00:15 2.52 11:40 4.61 3.27 01:45 0.94 11:40 1.79 1.24 00:20 0.092 11:40 0.415 0.182 0.182 0.14
01/28/2021 04:05 2.29 09:55 4.65 3.26 04:05 0.81 09:55 1.82 1.27 04:05 0.069 09:55 0.426 0.186 0.186 0.24
01/29/2021 01:55 2.43 13:25 4.02 3.08 23:50 0.93 13:25 1.66 1.23 23:55 0.085 13:25 0.315 0.163 0.163 0.03
01/30/2021 02:35 2.32 00:55 3.50 2.73 02:35 0.88 00:50 1.45 1.08 02:35 0.076 00:55 0.227 0.119 0.119 0.07
01/31/2021 05:15 2.23 13:00 4.39 2.76 04:40 0.86 13:00 1.75 1.09 04:50 0.070 13:00 0.378 0.126 0.126 0.12
02/01/2021 01:45 2.42 17:35 4.55 3.54 01:40 0.96 07:25 1.85 1.40 01:50 0.088 07:25 0.416 0.228 0.228 0.82
02/02/2021 04:15 3.06 12:05 5.02 3.87 04:10 1.21 12:05 1.95 1.49 04:15 0.156 12:05 0.508 0.274 0.274 0.31
02/03/2021 23:55 3.04 08:50 4.78 3.65 23:35 1.13 14:25 1.86 1.36 23:55 0.144 14:25 0.445 0.230 0.230 0.06
02/04/2021 02:40 2.64 08:35 4.92 3.47 02:35 0.98 08:35 1.94 1.28 02:40 0.101 08:35 0.490 0.203 0.203 0.07
02/05/2021 03:55 2.69 03:05 4.57 3.29 03:55 0.96 03:05 1.68 1.19 03:55 0.103 03:05 0.383 0.174 0.174 0.01
02/06/2021 05:20 2.41 01:20 3.68 2.90 05:30 0.83 01:20 1.38 1.04 05:25 0.077 01:20 0.231 0.126 0.126 0.01
02/07/2021 05:30 2.37 09:50 4.32 2.91 05:30 0.79 09:50 1.63 1.04 05:30 0.070 09:50 0.344 0.128 0.128 -
02/08/2021 04:15 2.40 08:55 4.82 3.14 04:20 0.83 08:55 1.78 1.17 04:15 0.076 08:55 0.437 0.163 0.163 -
02/09/2021 02:50 2.34 15:10 4.27 3.12 05:55 0.84 13:50 1.62 1.17 02:50 0.075 13:50 0.333 0.159 0.159 -
02/10/2021 04:20 2.28 11:05 4.28 3.21 04:20 0.84 12:20 1.66 1.19 04:20 0.070 11:05 0.341 0.168 0.168 -
02/11/2021 02:55 2.38 11:00 4.72 3.18 02:50 0.84 23:05 1.77 1.24 02:55 0.075 11:00 0.419 0.175 0.175 -
02/12/2021 04:00 2.28 11:45 4.06 2.95 04:00 0.92 11:45 1.68 1.23 04:00 0.077 11:45 0.323 0.155 0.155 -
02/13/2021 03:55 2.28 01:20 3.59 2.71 03:40 0.83 23:55 1.54 1.09 03:40 0.071 01:20 0.249 0.120 0.120 0.08
02/14/2021 04:00 2.26 10:05 4.16 2.83 01:50 0.87 10:00 1.76 1.13 04:00 0.072 10:00 0.349 0.133 0.133 0.71
02/15/2021 00:00 2.92 14:10 5.65 4.26 00:00 1.16 14:10 2.08 1.64 00:00 0.140 14:10 0.639 0.349 0.349 0.78
02/16/2021 23:30 3.47 07:30 5.29 4.12 23:55 1.31 10:45 1.97 1.57 23:30 0.203 07:30 0.542 0.312 0.312 0.07
02/17/2021 03:00 3.07 06:40 5.03 3.62 02:05 1.16 06:40 1.97 1.36 03:05 0.150 06:40 0.514 0.226 0.226 -
02/18/2021 04:50 2.80 15:10 4.85 3.49 03:15 1.05 15:10 1.83 1.30 03:20 0.120 15:10 0.455 0.206 0.206 0.09
02/19/2021 04:30 2.72 13:10 4.37 3.36 04:30 1.00 13:10 1.68 1.27 04:30 0.109 13:10 0.360 0.191 0.191 0.17
02/20/2021 04:50 2.54 00:25 3.86 2.97 04:40 0.95 00:25 1.50 1.13 04:50 0.093 00:25 0.270 0.141 0.141 0.07
02/21/2021 04:35 2.48 23:50 4.95 3.05 04:35 0.91 23:45 1.88 1.14 04:35 0.087 23:50 0.479 0.152 0.152 0.42
02/22/2021 05:15 3.53 13:10 6.13 4.46 05:05 1.34 13:35 2.25 1.67 05:10 0.213 13:10 0.766 0.378 0.378 0.98
02/23/2021 04:50 3.31 21:35 5.27 3.91 04:55 1.25 21:35 1.97 1.47 04:55 0.180 21:35 0.550 0.272 0.272 0.27
02/24/2021 05:55 3.12 12:00 4.76 3.69 05:55 1.18 12:05 1.83 1.38 05:55 0.156 12:05 0.442 0.236 0.236 -
02/25/2021 02:50 2.88 09:15 4.92 3.68 02:40 1.06 17:15 1.87 1.36 02:50 0.125 09:15 0.464 0.234 0.234 0.18
02/26/2021 04:50 2.82 10:45 4.74 3.44 04:35 1.01 10:45 1.85 1.28 04:50 0.116 10:45 0.445 0.198 0.198 0.10
02/27/2021 05:35 2.54 00:00 3.87 2.96 05:00 0.84 00:00 1.50 1.09 05:00 0.085 00:00 0.270 0.135 0.135 0.02
02/28/2021 04:10 2.43 22:20 4.00 2.91 04:05 0.87 12:45 1.54 1.04 04:05 0.080 22:20 0.291 0.128 0.128 0.02
03/01/2021 02:45 2.43 08:20 4.68 3.23 02:40 0.86 08:20 1.79 1.20 02:40 0.080 08:20 0.422 0.173 0.173 -
03/02/2021 05:10 2.42 08:35 4.77 3.22 02:55 0.85 08:35 1.77 1.20 02:55 0.079 08:35 0.428 0.170 0.170 -
03/03/2021 02:20 2.50 09:20 4.58 3.27 03:20 0.89 09:20 1.76 1.19 02:20 0.086 09:20 0.404 0.174 0.174 -
03/04/2021 05:35 2.44 11:10 4.94 3.27 03:00 0.87 11:10 1.85 1.20 05:35 0.080 11:10 0.472 0.176 0.176 0.20
03/05/2021 05:30 2.52 06:05 4.67 3.16 02:45 0.92 06:00 1.79 1.17 05:30 0.090 06:00 0.415 0.162 0.162 0.05
03/06/2021 03:20 2.38 00:55 3.66 2.83 06:20 0.85 00:55 1.35 1.04 03:20 0.077 00:55 0.225 0.121 0.121 -
03/07/2021 04:20 2.23 11:30 4.56 2.79 04:15 0.77 11:30 1.73 1.02 04:15 0.063 11:30 0.393 0.118 0.118 0.04
03/08/2021 04:30 2.33 12:25 4.89 3.20 04:20 0.83 12:25 1.86 1.17 04:25 0.072 12:25 0.466 0.168 0.168 -
03/09/2021 02:50 2.37 11:30 4.44 3.13 03:15 0.84 11:30 1.67 1.15 03:15 0.075 11:30 0.367 0.157 0.157 0.01
03/10/2021 03:05 2.26 12:25 4.69 3.17 03:05 0.79 13:25 1.68 1.17 03:05 0.066 12:30 0.384 0.165 0.165 -
03/11/2021 03:55 2.21 12:45 4.55 3.15 03:55 0.80 12:45 1.68 1.17 03:55 0.064 12:45 0.381 0.163 0.163 -
Page 647 of 1163
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DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 03:35 2.18 09:05 4.75 3.04 03:35 0.75 09:05 1.82 1.12 03:35 0.059 09:05 0.440 0.148 0.148 -
03/13/2021 03:55 2.16 00:20 3.55 2.73 03:45 0.75 00:20 1.36 0.98 03:45 0.059 00:20 0.217 0.108 0.108 -
03/14/2021 03:55 2.18 09:00 4.39 2.83 03:50 0.76 09:00 1.55 1.02 03:55 0.059 09:00 0.333 0.122 0.122 0.30
03/15/2021 02:55 2.48 10:20 4.79 3.25 02:55 0.84 10:20 1.77 1.16 02:55 0.080 10:20 0.431 0.166 0.166 -
03/16/2021 02:45 2.28 12:30 3.84 3.11 03:25 0.84 12:25 1.46 1.16 02:40 0.072 12:30 0.261 0.157 0.157 -
03/17/2021 02:25 2.43 11:15 4.95 3.20 22:55 0.86 11:15 1.83 1.16 02:25 0.082 11:15 0.468 0.165 0.165 -
03/18/2021 02:55 2.27 08:35 4.77 3.13 02:50 0.71 08:35 1.81 1.14 02:50 0.060 08:35 0.437 0.158 0.158 0.11
03/19/2021 02:10 2.30 10:35 4.22 2.97 02:00 0.86 10:35 1.59 1.12 02:05 0.074 10:35 0.324 0.142 0.142 0.03
03/20/2021 03:50 2.05 06:00 3.38 2.66 03:50 0.70 06:00 1.27 0.99 03:50 0.050 06:00 0.189 0.106 0.106 0.17
03/21/2021 02:45 2.05 21:35 3.57 2.62 02:45 0.71 21:30 1.43 1.00 02:40 0.052 21:30 0.228 0.106 0.106 0.07
03/22/2021 01:50 2.27 02:30 4.56 3.00 01:50 0.85 02:30 1.77 1.16 01:50 0.071 02:30 0.402 0.149 0.149 0.11
03/23/2021 02:45 2.21 11:20 4.61 3.07 01:50 0.79 11:20 1.77 1.14 02:45 0.064 11:20 0.409 0.152 0.152 -
03/24/2021 02:05 2.20 13:15 4.28 3.17 02:00 0.72 13:15 1.62 1.17 02:00 0.058 13:15 0.336 0.164 0.164 0.34
03/25/2021 23:55 2.87 09:30 4.82 3.45 02:35 1.02 09:30 1.82 1.27 23:55 0.120 09:30 0.447 0.198 0.198 0.27
03/26/2021 03:45 2.47 04:05 4.42 3.15 03:45 0.83 04:05 1.67 1.16 03:45 0.079 04:05 0.363 0.159 0.159 -
03/27/2021 04:00 2.28 09:50 3.15 2.68 03:55 0.80 15:00 1.25 0.97 04:00 0.067 15:00 0.160 0.104 0.104 -
03/28/2021 03:40 2.17 14:55 4.58 2.88 04:35 0.76 14:55 1.74 1.07 03:40 0.060 14:55 0.398 0.134 0.134 0.37
03/29/2021 03:05 2.31 13:30 4.17 3.11 03:05 0.85 05:30 1.62 1.16 03:05 0.073 05:30 0.321 0.157 0.157 -
03/30/2021 03:05 2.26 10:45 4.08 3.10 02:50 0.83 10:45 1.60 1.18 02:55 0.069 10:45 0.311 0.159 0.159 -
03/31/2021 02:35 2.37 09:35 4.48 3.13 02:35 0.81 09:35 1.72 1.18 02:35 0.072 09:35 0.382 0.162 0.162 -
04/01/2021 02:05 2.32 10:25 4.53 3.11 02:05 0.79 10:25 1.74 1.17 02:05 0.068 10:25 0.392 0.159 0.159 -
04/02/2021 23:15 2.35 20:00 4.02 2.96 02:25 0.83 19:55 1.63 1.14 02:25 0.073 20:00 0.310 0.143 0.143 -
04/03/2021 03:15 2.02 06:40 3.24 2.53 03:10 0.72 06:40 1.35 0.97 03:20 0.050 06:40 0.189 0.097 0.097 -
04/04/2021 03:15 2.02 12:35 3.30 2.53 03:15 0.72 12:35 1.33 0.99 03:15 0.051 12:35 0.191 0.100 0.100 -
04/05/2021 02:15 2.04 13:45 4.39 3.01 02:10 0.77 13:45 1.71 1.17 02:10 0.055 13:45 0.368 0.153 0.153 -
04/06/2021 03:10 2.11 11:45 4.50 3.03 03:10 0.71 11:45 1.74 1.16 03:05 0.054 11:45 0.388 0.152 0.152 -
04/07/2021 02:20 2.18 10:05 4.65 3.04 02:20 0.74 10:05 1.79 1.16 02:20 0.058 10:05 0.417 0.154 0.154 0.22
04/08/2021 02:55 2.16 12:15 4.34 3.09 02:55 0.76 12:15 1.63 1.17 02:55 0.059 12:15 0.347 0.158 0.158 -
04/09/2021 02:00 2.33 11:50 4.20 3.02 02:00 0.84 06:20 1.65 1.11 02:00 0.073 11:50 0.333 0.145 0.145 0.03
04/10/2021 02:10 2.34 18:30 5.19 3.66 23:15 0.39 00:35 1.24 0.74 02:10 0.070 18:30 0.234 0.119 0.119 0.02
04/11/2021 16:05 3.75 11:20 5.40 4.38 23:15 0.37 11:20 1.13 0.57 23:15 0.066 11:20 0.324 0.124 0.124 -
04/12/2021 23:10 3.63 12:55 5.32 4.41 00:25 0.40 06:15 1.06 0.63 02:10 0.077 04:35 0.261 0.137 0.137 -
04/13/2021 22:40 2.59 05:35 4.55 3.39 04:35 0.45 05:35 1.89 1.02 04:35 0.070 05:35 0.429 0.151 0.151 -
04/14/2021 04:20 2.49 12:10 4.79 3.21 00:55 0.77 12:10 1.72 1.11 04:20 0.074 12:10 0.420 0.159 0.158 -
10/01/2020 - - - - - - - - - - - - - - - - -
10/02/2020 - - - - - - - - - - - - - - - - -
10/03/2020 - - - - - - - - - - - - - - - - 0.01
10/04/2020 - - - - - - - - - - - - - - - - 0.01
10/05/2020 - - - - - - - - - - - - - - - - -
10/06/2020 - - - - - - - - - - - - - - - - -
10/07/2020 - - - - - - - - - - - - - - - - -
10/08/2020 - - - - - - - - - - - - - - - - -
10/09/2020 - - - - - - - - - - - - - - - - 0.64
10/10/2020 - - - - - - - - - - - - - - - - 1.04
10/11/2020 - - - - - - - - - - - - - - - - 0.53
10/12/2020 - - - - - - - - - - - - - - - - -
10/13/2020 23:45 2.18 07:45 4.85 3.08 23:40 0.88 07:45 1.88 1.25 23:45 0.069 07:45 0.466 0.169 0.116 0.61
10/14/2020 04:20 2.01 09:55 4.21 2.85 04:20 0.83 09:55 1.74 1.21 04:20 0.058 09:55 0.354 0.147 0.147 -
10/15/2020 02:40 1.83 08:10 4.27 2.80 02:30 0.76 06:15 1.72 1.17 02:30 0.047 08:10 0.358 0.138 0.138 -
10/16/2020 03:05 1.90 03:55 4.18 2.76 03:00 0.74 03:55 1.73 1.14 03:05 0.047 03:55 0.348 0.132 0.132 -
10/17/2020 03:00 1.79 20:25 3.51 2.38 04:10 0.71 20:25 1.44 0.96 03:00 0.043 20:25 0.227 0.088 0.088 0.01
10/18/2020 03:10 1.81 12:30 4.06 2.43 03:20 0.58 12:30 1.60 0.92 03:20 0.035 12:30 0.308 0.091 0.091 0.03
10/19/2020 03:40 1.79 07:55 4.55 2.80 03:25 0.63 07:55 1.72 1.11 03:40 0.037 07:55 0.391 0.132 0.132 0.05
10/20/2020 02:55 1.98 15:15 4.52 2.86 02:50 0.70 15:20 1.73 1.17 02:50 0.050 15:15 0.383 0.142 0.142 -
10/21/2020 01:25 1.94 13:05 4.01 2.88 23:45 0.72 11:20 1.66 1.18 23:45 0.048 11:20 0.313 0.145 0.145 0.01
10/22/2020 02:55 2.01 10:50 4.39 2.90 02:55 0.77 10:15 1.68 1.16 02:55 0.054 10:50 0.354 0.143 0.143 -
10/23/2020 03:05 1.92 06:50 4.34 2.82 02:50 0.70 06:50 1.70 1.11 02:55 0.046 06:50 0.360 0.133 0.133 0.20
10/24/2020 02:55 1.86 20:30 3.55 2.46 02:45 0.66 13:55 1.45 0.99 02:50 0.041 13:55 0.230 0.096 0.096 0.02
10/25/2020 04:30 1.75 09:30 3.78 2.50 04:25 0.60 09:25 1.58 0.97 04:25 0.035 09:25 0.274 0.098 0.098 -
10/26/2020 03:35 1.83 06:30 4.70 2.94 03:35 0.67 06:30 1.73 1.07 03:35 0.041 06:30 0.411 0.137 0.137 -
10/27/2020 02:30 1.94 11:45 4.33 2.98 02:35 0.67 11:45 1.61 1.05 02:30 0.045 11:45 0.339 0.136 0.136 -
10/28/2020 02:20 2.03 10:30 4.12 3.03 02:20 0.71 11:55 1.54 1.08 02:20 0.051 12:00 0.299 0.143 0.143 -
10/29/2020 02:35 1.94 05:05 4.31 3.01 23:25 0.70 14:15 1.73 1.10 02:35 0.047 14:15 0.349 0.145 0.145 -
10/30/2020 03:50 2.07 04:00 4.08 2.92 03:45 0.68 05:45 1.47 1.01 03:45 0.050 04:00 0.281 0.126 0.126 0.10
10/31/2020 04:05 1.69 00:10 3.00 2.31 04:00 0.57 00:10 1.24 0.89 04:00 0.031 00:10 0.155 0.078 0.078 -
11/01/2020 02:55 1.62 12:10 3.80 2.31 04:20 0.55 12:10 1.54 0.89 04:20 0.028 12:10 0.270 0.082 0.082 -
11/02/2020 02:40 1.79 09:40 4.46 2.77 02:30 0.64 14:25 1.72 1.08 02:30 0.038 09:35 0.374 0.127 0.127 -
11/03/2020 03:40 1.81 03:50 4.81 3.07 03:40 0.64 03:50 1.85 1.20 03:35 0.039 03:50 0.453 0.167 0.167 0.83
11/04/2020 02:35 2.22 12:00 4.03 2.97 03:15 0.88 12:00 1.59 1.19 02:35 0.072 12:00 0.304 0.150 0.150 0.09
11/05/2020 04:05 2.14 09:05 4.72 2.91 04:05 0.77 09:05 1.81 1.15 04:05 0.059 09:05 0.432 0.143 0.143 0.34
11/06/2020 06:30 2.16 02:35 4.59 2.85 23:25 0.80 02:30 1.79 1.13 23:25 0.062 02:30 0.398 0.137 0.137 0.10
11/07/2020 04:20 1.92 01:10 3.50 2.41 04:25 0.68 01:10 1.42 0.94 04:20 0.045 01:10 0.222 0.088 0.088 0.07
11/08/2020 03:45 1.70 12:00 3.76 2.41 03:30 0.60 12:00 1.51 0.94 03:40 0.033 12:00 0.262 0.091 0.091 0.01
11/09/2020 03:20 1.89 13:25 4.10 2.86 03:10 0.70 08:40 1.61 1.13 03:10 0.046 13:25 0.315 0.139 0.139 0.04
Page 648 of 1163
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DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/10/2020 04:10 2.01 08:40 3.99 2.88 02:30 0.74 08:40 1.62 1.12 04:10 0.052 08:40 0.304 0.137 0.137 0.03
11/11/2020 03:05 1.92 13:00 4.17 2.91 03:00 0.65 13:00 1.62 1.12 03:05 0.042 13:00 0.326 0.141 0.141 -
11/12/2020 02:30 2.05 07:55 4.09 2.92 03:20 0.72 15:00 1.67 1.14 02:30 0.052 15:00 0.325 0.143 0.143 0.16
11/13/2020 23:20 2.15 07:00 5.00 2.99 23:20 0.73 07:00 1.96 1.13 23:20 0.056 07:00 0.507 0.147 0.147 0.38
11/14/2020 04:45 1.80 18:30 3.74 2.60 04:45 0.54 18:30 1.34 0.92 04:45 0.032 18:30 0.229 0.099 0.099 0.47
11/15/2020 05:40 2.13 23:30 3.96 2.69 05:25 0.69 23:30 1.49 0.97 05:45 0.052 23:30 0.278 0.107 0.107 0.19
11/16/2020 03:20 2.13 09:05 4.85 3.17 03:20 0.67 09:05 1.81 1.08 03:20 0.051 09:05 0.449 0.157 0.157 0.31
11/17/2020 04:35 2.31 13:25 4.69 3.26 04:35 0.65 13:25 1.64 1.05 04:35 0.055 13:25 0.389 0.153 0.153 0.20
11/18/2020 02:25 2.36 17:50 4.81 3.27 02:25 0.62 17:45 1.72 1.07 02:25 0.055 17:45 0.413 0.158 0.158 0.30
11/19/2020 02:50 2.40 13:00 5.59 3.47 02:50 0.73 13:15 1.91 1.15 02:50 0.066 13:00 0.560 0.184 0.184 0.50
11/20/2020 04:55 2.50 10:40 4.54 3.26 04:50 0.70 10:40 1.61 1.04 04:50 0.068 10:40 0.365 0.152 0.152 0.01
11/21/2020 04:35 2.30 11:00 3.80 2.87 06:45 0.61 01:00 1.32 0.86 04:35 0.054 01:00 0.230 0.103 0.103 -
11/22/2020 04:55 2.32 12:10 4.60 2.90 05:30 0.60 12:10 1.63 0.88 04:55 0.052 12:10 0.376 0.109 0.109 0.21
11/23/2020 03:05 2.26 06:30 4.63 3.25 03:00 0.61 06:30 1.63 1.04 03:05 0.050 06:30 0.378 0.153 0.153 0.14
11/24/2020 03:05 2.28 12:40 4.58 3.26 03:00 0.62 12:40 1.66 1.05 03:05 0.052 12:40 0.380 0.157 0.157 0.21
11/25/2020 05:20 2.34 13:30 4.48 3.15 05:20 0.68 13:25 1.57 1.02 05:20 0.060 13:30 0.348 0.141 0.141 0.05
11/26/2020 01:55 2.15 00:20 3.27 2.56 01:55 0.60 02:05 1.11 0.79 01:55 0.046 00:20 0.156 0.080 0.080 0.02
11/27/2020 04:30 2.01 21:45 3.28 2.64 23:40 0.51 11:15 1.04 0.73 04:30 0.037 11:05 0.136 0.079 0.079 -
11/28/2020 04:00 2.40 12:30 3.71 3.09 23:55 0.45 02:35 0.95 0.60 01:50 0.044 02:40 0.154 0.081 0.081 0.05
11/29/2020 22:50 2.29 11:40 4.45 2.84 05:30 0.39 11:40 1.74 0.77 05:25 0.036 11:40 0.382 0.091 0.091 -
11/30/2020 02:35 2.03 05:25 4.84 3.01 02:40 0.68 05:25 1.88 1.15 02:40 0.048 05:25 0.464 0.152 0.152 0.36
12/01/2020 04:30 1.98 13:00 4.74 2.97 04:30 0.67 12:55 1.73 1.07 04:30 0.046 13:00 0.409 0.139 0.139 -
12/02/2020 04:55 2.07 16:00 4.41 3.05 04:50 0.64 16:00 1.61 1.06 04:50 0.047 16:00 0.349 0.142 0.142 0.01
12/03/2020 04:15 2.03 10:05 4.30 2.96 02:50 0.65 10:05 1.61 1.03 04:20 0.046 10:05 0.336 0.132 0.132 -
12/04/2020 05:10 1.93 02:15 4.51 2.84 05:05 0.61 02:15 1.63 1.02 05:10 0.040 02:15 0.364 0.123 0.123 -
12/05/2020 01:55 2.09 00:10 3.31 2.50 01:00 0.70 00:10 1.28 0.91 01:00 0.052 00:10 0.185 0.089 0.089 0.03
12/06/2020 05:45 1.85 11:45 3.96 2.46 05:45 0.58 11:45 1.57 0.90 05:45 0.036 11:45 0.292 0.089 0.089 0.03
12/07/2020 03:40 1.89 08:55 4.13 2.84 03:40 0.60 08:55 1.66 1.07 03:40 0.038 08:55 0.327 0.129 0.129 -
12/08/2020 03:35 2.11 19:10 4.44 3.24 04:00 0.73 15:05 1.69 1.22 04:00 0.055 19:10 0.370 0.178 0.178 0.87
12/09/2020 23:45 2.52 08:05 5.08 3.30 22:00 0.91 08:05 1.87 1.20 23:45 0.089 08:05 0.494 0.177 0.177 0.17
12/10/2020 03:30 2.24 06:30 4.60 3.11 03:25 0.79 06:30 1.76 1.16 03:25 0.065 06:30 0.404 0.157 0.157 0.07
12/11/2020 05:35 2.15 02:35 3.92 2.96 05:35 0.75 03:20 1.55 1.09 05:35 0.058 02:30 0.276 0.137 0.137 0.02
12/12/2020 04:55 2.01 19:35 3.54 2.54 04:55 0.65 19:35 1.39 0.91 04:45 0.046 19:35 0.221 0.091 0.091 0.01
12/13/2020 06:15 2.12 13:20 4.00 2.71 06:15 0.72 13:20 1.57 1.00 06:15 0.055 13:20 0.297 0.113 0.113 0.24
12/14/2020 02:35 2.16 02:45 4.07 2.99 02:30 0.75 02:45 1.61 1.12 02:30 0.059 02:45 0.312 0.143 0.143 0.05
12/15/2020 04:40 1.99 14:45 4.86 3.25 04:25 0.65 14:45 1.86 1.21 04:35 0.045 14:45 0.464 0.181 0.181 0.58
12/16/2020 04:15 2.49 14:20 4.93 3.39 04:00 0.92 14:20 1.91 1.27 04:05 0.088 14:20 0.486 0.197 0.197 0.39
12/17/2020 02:45 2.57 01:10 4.40 3.26 02:50 0.93 10:50 1.70 1.22 02:50 0.093 10:50 0.362 0.178 0.178 0.08
12/18/2020 04:20 2.36 10:00 4.52 3.11 04:20 0.80 10:00 1.74 1.16 04:20 0.070 10:00 0.391 0.159 0.159 0.25
12/19/2020 04:15 2.17 01:15 3.70 2.83 04:20 0.71 00:15 1.46 1.04 04:20 0.056 00:15 0.244 0.126 0.126 0.37
12/20/2020 04:20 2.57 20:40 4.63 3.01 04:10 0.90 20:35 1.71 1.09 04:20 0.090 20:40 0.394 0.140 0.140 0.04
12/21/2020 00:40 2.78 16:50 5.61 3.90 00:35 1.00 16:45 2.07 1.43 00:40 0.112 16:50 0.620 0.271 0.271 1.07
12/22/2020 23:50 3.11 01:55 5.14 3.68 22:50 1.08 01:55 1.87 1.33 23:50 0.143 01:55 0.504 0.227 0.227 -
12/23/2020 04:20 2.71 00:25 4.60 3.27 04:10 0.93 00:30 1.78 1.19 04:20 0.101 00:30 0.410 0.171 0.171 -
12/24/2020 23:55 2.40 09:55 4.57 2.88 02:40 0.84 09:55 1.75 1.07 02:40 0.077 09:55 0.400 0.129 0.129 -
12/25/2020 04:35 2.17 16:45 3.27 2.65 00:50 0.72 16:40 1.27 0.97 04:35 0.058 16:40 0.179 0.104 0.104 0.49
12/26/2020 04:45 2.37 11:15 3.11 2.69 04:10 0.84 11:15 1.18 0.98 04:45 0.074 11:15 0.155 0.106 0.106 0.02
12/27/2020 04:05 2.28 11:35 3.81 2.89 02:35 0.81 11:35 1.43 1.08 04:00 0.069 11:35 0.252 0.133 0.133 0.13
12/28/2020 01:35 2.41 13:30 4.24 3.08 01:40 0.84 13:30 1.65 1.16 01:35 0.077 13:30 0.339 0.157 0.157 -
12/29/2020 05:35 2.31 10:20 4.37 3.16 02:10 0.80 10:20 1.68 1.20 02:15 0.070 10:20 0.360 0.167 0.167 0.14
12/30/2020 00:25 2.82 10:35 5.29 3.80 01:15 1.07 09:20 1.95 1.45 01:10 0.124 10:35 0.534 0.261 0.261 0.78
12/31/2020 23:30 2.87 07:30 4.84 3.53 23:25 1.08 07:30 1.87 1.36 23:25 0.127 07:30 0.462 0.219 0.219 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 30.413 30.65
Average 3.15 1.15 0.166
Page 649 of 1163
129
Page 650 of 1163
130
AUB_A8_70829
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced backwater conditions from October 9th through October 12th.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 1.77 2.72 0.148
Minimum 1.30 0.47 0.047
Maximum 7.85 4.27 0.458
Min Time 12/06/2020 2:00:00 AM 10/10/2020 12:00:00 AM 11/11/2020 2:00:00 AM
Max Time 10/10/2020 1:00:00 AM 01/12/2021 9:00:00 AM 01/12/2021 9:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 97.749
VFINAL (ft/s) 97.749
QFINAL (MGD - Total MG) 97.749
Pipe Elliptical (15 in H x 15 in W)
Silt 0.00 (in)
Page 651 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_A8_70829
Page 652 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A8_70829
Page 653 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A8_70829Pipe: Elliptical (15 in H x 15 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 01:35 1.50 15:35 2.51 1.75 01:00 1.64 15:30 4.02 2.85 01:00 0.071 15:35 0.348 0.150 0.150 -
01/02/2021 04:45 1.48 23:35 3.02 1.97 04:45 1.51 21:10 4.38 2.99 04:45 0.061 21:10 0.455 0.197 0.197 -
01/03/2021 22:25 1.88 00:05 2.93 2.18 04:55 2.85 02:40 4.53 3.32 22:35 0.169 02:50 0.490 0.239 0.239 -
01/04/2021 02:55 1.72 11:50 2.70 2.07 02:45 2.80 11:45 4.11 3.38 02:55 0.141 11:50 0.398 0.226 0.226 -
01/05/2021 03:30 1.62 13:55 2.61 2.00 01:20 2.71 13:55 3.94 3.33 03:30 0.131 13:55 0.364 0.212 0.212 -
01/06/2021 23:45 1.66 12:00 2.62 1.98 23:15 2.77 10:20 3.90 3.36 23:45 0.135 12:00 0.360 0.210 0.210 -
01/07/2021 03:40 1.59 08:55 2.35 1.87 04:20 2.30 08:55 3.70 3.05 04:20 0.105 08:55 0.294 0.176 0.176 -
01/08/2021 02:55 1.56 08:25 2.33 1.86 01:20 1.87 08:25 3.65 2.86 04:05 0.086 08:25 0.287 0.165 0.165 -
01/09/2021 04:00 1.55 10:55 2.50 1.74 06:15 1.70 10:50 3.76 2.56 06:15 0.076 10:55 0.324 0.134 0.134 -
01/10/2021 02:35 1.43 13:45 1.99 1.68 01:05 1.57 19:40 3.40 2.60 01:05 0.062 13:50 0.211 0.130 0.130 -
01/11/2021 04:20 1.37 11:00 2.63 1.95 02:25 1.37 10:55 3.73 2.94 04:45 0.051 11:00 0.348 0.189 0.189 -
01/12/2021 00:25 1.82 09:15 3.04 2.53 00:25 2.96 18:55 4.53 3.78 00:25 0.163 09:15 0.492 0.337 0.337 -
01/13/2021 22:40 1.73 00:40 3.06 2.18 22:50 2.97 00:35 4.21 3.56 22:40 0.156 00:40 0.488 0.257 0.257 -
01/14/2021 23:45 1.57 09:05 2.49 1.88 02:55 2.72 09:00 3.88 3.29 03:40 0.123 16:05 0.329 0.193 0.193 -
01/15/2021 03:25 1.50 11:10 2.36 1.80 23:25 2.29 11:05 3.91 3.19 23:25 0.099 11:10 0.305 0.175 0.175 -
01/16/2021 02:45 1.48 09:05 2.25 1.70 03:25 1.64 09:05 3.80 2.91 03:25 0.067 09:05 0.284 0.147 0.147 -
01/17/2021 05:20 1.46 17:40 2.23 1.71 04:30 1.53 08:40 3.69 2.76 02:05 0.064 17:40 0.268 0.141 0.141 -
01/18/2021 03:10 1.39 11:05 2.34 1.81 03:00 1.43 11:05 3.60 2.72 03:00 0.054 11:05 0.285 0.155 0.155 -
01/19/2021 04:15 1.42 14:05 2.50 1.82 05:40 1.53 14:05 3.67 2.79 05:40 0.059 14:05 0.319 0.158 0.158 -
01/20/2021 02:50 1.50 11:15 2.32 1.81 02:50 1.60 11:15 3.74 2.86 02:50 0.066 11:15 0.292 0.159 0.159 -
01/21/2021 02:50 1.44 11:00 2.43 1.85 02:55 1.41 10:55 3.76 2.80 02:55 0.055 11:00 0.312 0.163 0.163 -
01/22/2021 02:15 1.47 09:50 2.29 1.79 02:30 1.23 09:50 3.73 2.88 02:30 0.049 09:50 0.286 0.158 0.158 -
01/23/2021 04:35 1.34 13:15 1.93 1.62 02:25 1.28 21:45 3.69 2.64 02:25 0.046 10:00 0.210 0.126 0.126 -
01/24/2021 04:10 1.34 14:35 1.88 1.62 01:30 1.46 08:35 3.49 2.60 01:30 0.053 14:35 0.200 0.125 0.125 -
01/25/2021 02:50 1.37 11:20 2.38 1.75 03:15 1.36 11:20 3.82 2.72 03:00 0.051 11:20 0.309 0.146 0.146 -
01/26/2021 01:35 1.36 11:05 2.28 1.76 02:50 1.25 11:25 3.82 2.80 01:30 0.046 11:05 0.286 0.152 0.152 -
01/27/2021 02:15 1.38 16:35 2.31 1.77 02:10 1.51 08:40 3.84 2.93 02:10 0.056 16:35 0.298 0.160 0.160 -
01/28/2021 02:20 1.35 13:55 2.17 1.73 02:25 1.24 17:40 3.86 2.92 02:25 0.045 13:55 0.270 0.153 0.153 -
01/29/2021 00:35 1.38 11:00 2.08 1.68 01:30 1.30 12:55 3.81 2.71 01:30 0.049 12:55 0.253 0.137 0.137 -
01/30/2021 02:25 1.36 12:50 1.94 1.64 04:45 1.28 12:50 3.66 2.63 04:50 0.048 12:50 0.220 0.127 0.127 -
01/31/2021 03:10 1.34 13:05 1.94 1.62 00:55 1.41 13:05 3.53 2.63 00:55 0.051 13:05 0.212 0.126 0.126 -
02/01/2021 01:30 1.36 17:15 2.23 1.81 01:35 1.43 23:55 3.90 3.04 01:30 0.052 23:55 0.279 0.169 0.169 -
02/02/2021 03:45 1.50 09:40 2.52 1.86 03:40 1.64 12:20 4.11 3.14 03:40 0.068 09:40 0.358 0.183 0.183 -
02/03/2021 04:30 1.48 10:30 2.21 1.80 04:10 1.77 10:30 3.78 3.12 04:35 0.073 10:30 0.275 0.172 0.172 -
02/04/2021 02:35 1.41 09:40 2.39 1.79 02:25 1.58 09:40 3.92 2.95 02:25 0.062 09:40 0.319 0.163 0.163 -
02/05/2021 03:05 1.43 13:25 2.09 1.74 03:05 1.52 13:25 3.62 2.88 03:05 0.059 13:25 0.242 0.151 0.151 -
02/06/2021 04:40 1.38 19:35 2.00 1.67 04:40 1.46 19:35 3.46 2.68 04:40 0.053 19:35 0.218 0.133 0.133 -
02/07/2021 04:50 1.37 11:50 2.01 1.71 05:10 1.48 08:20 3.34 2.53 04:55 0.055 11:50 0.194 0.130 0.130 -
02/08/2021 02:25 1.41 11:35 2.07 1.74 01:50 1.33 11:35 3.72 2.85 01:50 0.054 11:35 0.246 0.150 0.150 -
02/09/2021 02:40 1.37 14:45 2.35 1.71 02:15 1.49 14:45 4.03 2.82 02:40 0.057 14:45 0.321 0.147 0.147 -
02/10/2021 01:35 1.39 13:05 2.26 1.77 03:30 1.43 13:00 3.80 2.87 03:45 0.054 13:00 0.280 0.157 0.157 -
02/11/2021 02:35 1.42 15:05 2.17 1.76 04:15 1.51 15:05 3.60 2.78 02:40 0.058 15:05 0.254 0.149 0.149 -
02/12/2021 04:45 1.42 13:25 2.13 1.77 04:55 1.56 08:40 3.45 2.71 04:45 0.060 13:35 0.230 0.148 0.148 -
02/13/2021 04:40 1.39 11:35 1.97 1.66 01:15 1.35 08:40 3.25 2.57 01:15 0.054 11:35 0.197 0.125 0.125 -
02/14/2021 03:30 1.36 14:20 1.98 1.69 02:25 1.25 13:15 3.34 2.63 02:25 0.048 16:20 0.205 0.133 0.133 -
02/15/2021 00:10 1.63 15:10 2.65 2.10 00:05 2.27 13:00 4.05 3.50 00:10 0.108 15:10 0.375 0.243 0.243 -
02/16/2021 23:55 1.66 10:25 2.19 1.95 23:55 2.82 12:40 3.76 3.40 23:55 0.135 10:25 0.268 0.206 0.206 -
02/17/2021 01:20 1.59 11:45 2.25 1.79 02:10 1.71 11:45 3.85 3.18 02:10 0.078 11:45 0.287 0.173 0.173 -
02/18/2021 04:30 1.47 11:30 2.24 1.77 04:25 1.72 07:30 3.88 3.18 04:25 0.070 13:10 0.282 0.170 0.170 -
02/19/2021 03:55 1.37 11:10 2.33 1.76 03:50 1.61 11:05 3.92 3.11 03:50 0.059 11:10 0.301 0.167 0.167 -
02/20/2021 04:15 1.44 10:40 2.12 1.70 04:25 1.80 10:30 3.80 3.07 04:25 0.070 10:40 0.258 0.154 0.154 -
02/21/2021 04:55 1.42 23:35 2.52 1.74 02:10 1.82 23:40 4.12 3.06 03:40 0.074 23:40 0.361 0.161 0.161 -
02/22/2021 04:30 1.70 13:05 2.76 2.11 23:05 2.77 13:00 4.27 3.34 03:35 0.142 13:05 0.422 0.232 0.232 -
02/23/2021 05:50 1.64 21:45 2.48 1.93 04:15 1.82 21:15 4.06 3.27 04:15 0.088 21:30 0.342 0.198 0.198 -
02/24/2021 05:20 1.57 10:30 2.30 1.84 02:30 1.93 10:30 3.83 3.17 02:30 0.087 10:30 0.295 0.180 0.180 -
02/25/2021 02:25 1.58 12:35 2.32 1.87 02:40 2.42 12:35 3.96 3.21 02:40 0.108 12:35 0.308 0.186 0.186 -
02/26/2021 04:15 1.52 09:30 2.17 1.82 04:15 1.83 09:30 3.71 3.05 04:15 0.077 09:30 0.263 0.169 0.169 -
02/27/2021 06:05 1.46 11:55 1.95 1.72 06:05 1.54 09:15 3.48 2.75 06:05 0.061 09:15 0.209 0.142 0.142 -
02/28/2021 03:45 1.41 10:35 2.11 1.69 04:30 1.47 10:30 3.69 2.69 03:45 0.056 10:30 0.249 0.136 0.136 -
03/01/2021 02:15 1.40 17:15 2.27 1.78 02:00 1.45 07:30 3.72 2.85 02:00 0.055 17:15 0.277 0.156 0.156 -
03/02/2021 02:45 1.41 13:25 2.34 1.73 02:50 1.21 13:25 3.87 2.85 02:50 0.046 13:25 0.304 0.150 0.150 -
03/03/2021 02:25 1.41 15:00 2.26 1.76 02:25 1.34 15:00 3.74 2.91 02:25 0.051 15:00 0.280 0.157 0.157 -
03/04/2021 02:30 1.41 10:55 2.07 1.77 02:20 1.24 14:15 3.61 2.91 02:20 0.047 14:15 0.239 0.158 0.158 -
03/05/2021 02:30 1.40 11:40 2.11 1.73 02:30 1.35 10:35 3.58 2.78 02:30 0.050 11:40 0.243 0.146 0.146 -
03/06/2021 04:20 1.41 11:20 1.96 1.68 02:50 1.42 11:20 3.60 2.77 04:35 0.056 11:20 0.219 0.138 0.138 -
03/07/2021 03:45 1.38 12:25 1.98 1.68 03:30 1.38 16:05 3.41 2.62 03:30 0.052 16:05 0.210 0.131 0.131 -
03/08/2021 04:20 1.48 10:45 2.12 1.81 03:15 1.60 10:40 3.48 2.78 03:15 0.067 10:45 0.237 0.155 0.155 -
03/09/2021 02:55 1.44 09:10 2.16 1.78 04:45 1.23 09:05 3.55 2.72 02:55 0.050 09:10 0.248 0.149 0.149 -
03/10/2021 02:05 1.39 09:10 2.09 1.76 01:45 1.31 09:10 3.61 2.80 01:50 0.050 09:10 0.241 0.152 0.152 -
03/11/2021 02:50 1.40 09:10 2.04 1.75 02:45 1.49 09:10 3.57 2.83 02:45 0.057 09:10 0.230 0.151 0.151 -
Page 654 of 1163
134
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 02:40 1.37 13:00 2.03 1.71 04:00 1.35 10:45 3.51 2.75 04:00 0.049 13:00 0.224 0.142 0.142 -
03/13/2021 02:25 1.36 09:50 1.91 1.66 02:40 1.48 16:10 3.52 2.66 02:00 0.054 16:10 0.202 0.131 0.131 -
03/14/2021 01:50 1.32 19:40 2.03 1.66 03:05 1.25 19:40 3.60 2.57 03:05 0.044 19:40 0.232 0.128 0.128 -
03/15/2021 01:25 1.33 10:35 2.10 1.73 03:20 1.34 10:30 3.64 2.75 01:30 0.048 10:30 0.245 0.146 0.146 -
03/16/2021 02:55 1.34 09:20 2.07 1.72 02:55 1.25 09:20 3.57 2.78 02:55 0.044 09:20 0.235 0.146 0.146 -
03/17/2021 00:55 1.32 11:50 2.04 1.71 00:40 1.27 11:50 3.68 2.79 00:55 0.044 11:50 0.238 0.145 0.145 -
03/18/2021 01:55 1.37 16:05 2.47 1.76 01:55 1.35 16:10 4.09 2.78 01:55 0.049 16:10 0.345 0.150 0.150 -
03/19/2021 04:30 1.34 08:15 2.05 1.71 03:10 1.18 10:10 3.54 2.72 03:10 0.042 10:10 0.227 0.141 0.141 -
03/20/2021 02:15 1.32 05:40 2.07 1.60 02:05 1.22 05:40 3.73 2.65 02:15 0.042 05:40 0.246 0.125 0.125 -
03/21/2021 02:05 1.33 07:30 1.90 1.62 02:15 1.23 09:30 3.53 2.57 02:15 0.042 09:30 0.206 0.122 0.122 -
03/22/2021 00:35 1.40 10:10 2.33 1.71 00:25 1.44 10:00 4.16 2.77 00:25 0.055 10:05 0.314 0.143 0.143 -
03/23/2021 02:55 1.36 14:55 2.28 1.74 04:15 1.24 14:55 3.79 2.80 04:15 0.048 14:55 0.287 0.149 0.149 -
03/24/2021 01:30 1.35 09:45 2.32 1.75 01:20 1.26 09:45 3.77 2.89 01:20 0.046 09:45 0.294 0.155 0.155 -
03/25/2021 02:55 1.51 10:00 2.16 1.81 02:45 1.72 08:40 3.75 3.03 02:45 0.074 10:00 0.258 0.168 0.168 -
03/26/2021 03:00 1.42 09:55 2.22 1.76 03:10 1.36 09:55 3.71 2.81 03:15 0.052 09:55 0.272 0.152 0.152 -
03/27/2021 02:30 1.40 09:25 2.05 1.67 02:25 1.52 09:25 3.51 2.66 02:25 0.057 09:25 0.229 0.132 0.132 -
03/28/2021 02:05 1.39 14:45 2.67 1.75 01:05 1.39 14:35 4.28 2.64 01:05 0.054 14:40 0.396 0.144 0.144 -
03/29/2021 02:30 1.46 09:35 2.10 1.80 02:45 1.36 09:35 3.52 2.83 02:45 0.055 09:35 0.237 0.156 0.156 -
03/30/2021 02:50 1.43 10:20 2.12 1.81 02:35 1.42 08:15 3.53 2.76 02:35 0.056 08:15 0.238 0.155 0.155 -
03/31/2021 03:00 1.43 09:10 2.22 1.81 03:00 1.40 09:15 3.45 2.74 03:00 0.054 09:10 0.251 0.155 0.155 -
04/01/2021 01:50 1.40 09:50 2.28 1.82 01:55 1.27 09:50 3.58 2.82 01:55 0.047 09:50 0.272 0.160 0.160 -
04/02/2021 01:50 1.48 09:30 2.13 1.79 01:20 1.48 09:25 3.51 2.75 01:20 0.062 09:25 0.235 0.152 0.152 -
04/03/2021 02:55 1.34 08:55 2.00 1.69 03:05 1.18 11:45 3.43 2.59 03:05 0.042 08:25 0.212 0.132 0.132 -
04/04/2021 03:50 1.38 10:25 2.01 1.67 01:05 1.20 18:25 3.38 2.51 01:05 0.045 10:25 0.208 0.125 0.125 -
04/05/2021 02:50 1.39 10:30 2.17 1.79 02:35 1.19 10:30 3.59 2.75 02:55 0.046 10:30 0.255 0.152 0.152 -
04/06/2021 02:50 1.39 08:50 2.08 1.75 03:15 1.25 08:50 3.56 2.76 03:15 0.046 08:50 0.237 0.148 0.148 -
04/07/2021 01:55 1.36 23:30 2.32 1.77 02:00 1.26 23:30 3.77 2.81 01:55 0.045 23:30 0.294 0.153 0.153 -
04/08/2021 02:05 1.38 10:05 2.14 1.79 03:50 1.21 09:20 3.55 2.78 03:50 0.044 10:05 0.240 0.155 0.155 -
04/09/2021 01:30 1.53 12:45 2.27 1.82 00:45 1.59 12:45 3.69 2.91 00:45 0.070 12:45 0.278 0.162 0.162 -
04/10/2021 02:15 1.49 12:45 2.24 1.79 02:15 1.56 15:10 3.49 2.78 02:15 0.064 12:45 0.245 0.153 0.153 -
04/11/2021 03:50 1.53 10:10 2.11 1.80 01:30 1.63 18:40 3.43 2.72 03:50 0.070 18:40 0.228 0.149 0.149 -
04/12/2021 00:40 1.56 09:35 2.23 1.88 00:40 1.56 13:05 3.50 2.82 00:40 0.068 09:35 0.253 0.167 0.120 -
09/24/2020 23:20 1.49 08:30 2.30 1.84 23:50 1.56 09:40 3.74 3.00 23:50 0.066 09:45 0.277 0.170 0.113 -
09/25/2020 01:55 1.36 12:55 2.45 1.77 02:20 1.36 12:00 4.05 2.77 02:20 0.049 12:00 0.337 0.154 0.154 -
09/26/2020 02:30 1.29 09:35 2.02 1.64 01:10 1.26 17:30 3.39 2.46 01:10 0.043 10:35 0.209 0.121 0.121 -
09/27/2020 03:35 1.34 08:25 2.00 1.66 03:10 1.34 16:10 3.37 2.40 03:10 0.049 16:10 0.210 0.119 0.119 -
09/28/2020 02:50 1.35 09:55 2.33 1.74 02:35 1.11 09:55 3.73 2.63 02:35 0.040 09:55 0.292 0.140 0.140 -
09/29/2020 02:55 1.34 10:25 2.33 1.78 02:30 1.14 08:05 3.79 2.81 02:30 0.043 10:25 0.285 0.155 0.155 -
09/30/2020 03:35 1.44 09:40 2.25 1.79 00:55 1.59 09:40 3.66 2.78 00:55 0.064 09:40 0.274 0.154 0.154 -
10/01/2020 02:55 1.34 08:40 2.16 1.78 02:50 1.11 13:50 3.53 2.61 02:50 0.039 13:50 0.247 0.144 0.144 -
10/02/2020 00:55 1.36 09:20 2.33 1.74 02:55 1.13 10:40 3.81 2.57 02:55 0.042 10:40 0.290 0.137 0.137 -
10/03/2020 03:00 1.28 10:20 2.05 1.65 01:00 1.22 10:10 3.44 2.44 03:10 0.042 10:15 0.219 0.120 0.120 0.01
10/04/2020 04:45 1.29 09:55 2.12 1.68 03:00 1.01 09:55 3.52 2.52 03:05 0.037 09:55 0.241 0.127 0.127 0.01
10/05/2020 01:50 1.45 08:55 2.17 1.79 23:45 1.63 08:55 3.58 2.77 02:25 0.070 08:55 0.253 0.151 0.151 -
10/06/2020 02:05 1.43 11:45 2.05 1.75 02:45 1.35 13:50 3.57 2.71 02:45 0.054 11:40 0.228 0.144 0.144 -
10/07/2020 03:05 1.38 10:30 2.07 1.71 02:15 1.23 10:25 3.65 2.65 02:15 0.046 10:25 0.240 0.138 0.138 -
10/08/2020 03:00 1.33 09:20 2.06 1.68 02:40 1.00 13:55 3.64 2.64 02:40 0.038 13:55 0.236 0.134 0.134 -
10/09/2020 02:30 1.29 23:55 9.60 1.93 23:35 0.57 10:20 3.89 2.62 00:25 0.037 23:00 0.584 0.148 0.148 0.64
10/10/2020 22:35 1.45 01:35 10.66 3.53 00:55 0.30 18:15 3.06 1.71 00:55 0.052 01:15 0.446 0.207 0.207 1.04
10/11/2020 02:30 1.33 14:35 5.92 2.68 16:40 0.57 11:55 3.55 1.92 04:50 0.039 13:35 0.445 0.174 0.174 0.53
10/12/2020 02:25 1.40 08:25 5.78 2.45 08:25 0.49 10:00 3.59 2.13 22:20 0.052 09:55 0.413 0.157 0.157 -
10/13/2020 01:10 1.42 07:30 2.48 1.82 01:05 1.18 07:05 4.34 2.83 01:05 0.046 07:10 0.365 0.161 0.161 0.61
10/14/2020 02:50 1.32 15:10 2.25 1.72 03:55 1.04 15:10 3.63 2.53 03:55 0.038 15:10 0.270 0.133 0.133 -
10/15/2020 01:50 1.31 15:20 2.31 1.72 00:45 1.15 15:15 3.73 2.57 00:45 0.042 15:20 0.288 0.137 0.137 -
10/16/2020 02:50 1.34 10:45 2.25 1.72 01:10 1.18 10:45 3.66 2.54 04:15 0.044 10:45 0.273 0.134 0.134 -
10/17/2020 04:05 1.31 10:10 2.04 1.65 02:45 1.19 08:50 3.47 2.48 02:45 0.041 10:10 0.223 0.123 0.123 0.01
10/18/2020 02:20 1.30 09:05 2.05 1.67 00:15 1.17 09:00 3.48 2.44 00:15 0.044 09:05 0.224 0.121 0.121 0.03
10/19/2020 02:55 1.34 10:35 2.13 1.73 01:25 1.30 10:35 3.68 2.61 02:50 0.047 10:35 0.253 0.137 0.137 -
10/20/2020 02:25 1.33 11:45 2.19 1.72 01:25 1.29 14:00 3.62 2.61 01:25 0.049 11:45 0.253 0.138 0.138 -
10/21/2020 00:50 1.40 10:10 2.20 1.76 03:15 1.24 08:00 3.55 2.62 03:15 0.049 10:10 0.253 0.142 0.142 -
10/22/2020 03:55 1.33 10:15 2.06 1.72 01:50 1.16 08:00 3.51 2.62 01:50 0.043 10:15 0.223 0.137 0.137 -
10/23/2020 01:55 1.37 09:15 2.25 1.77 02:15 1.21 10:40 3.60 2.63 02:15 0.045 09:15 0.260 0.144 0.144 -
10/24/2020 04:45 1.36 11:45 2.07 1.68 02:20 1.08 16:30 3.46 2.43 02:20 0.040 11:45 0.221 0.123 0.123 -
10/25/2020 00:30 1.36 09:30 2.10 1.69 03:45 1.24 08:35 3.34 2.39 00:35 0.045 09:30 0.210 0.122 0.122 -
10/26/2020 03:00 1.34 09:50 2.09 1.75 00:45 1.24 13:20 3.55 2.68 02:40 0.048 13:20 0.230 0.144 0.144 -
10/27/2020 03:30 1.40 08:30 2.07 1.74 01:35 1.29 13:45 3.55 2.68 01:35 0.054 18:10 0.231 0.142 0.142 -
10/28/2020 01:20 1.37 12:45 2.14 1.75 01:10 1.23 08:30 3.64 2.66 01:10 0.045 12:45 0.245 0.143 0.143 -
10/29/2020 02:10 1.34 09:45 2.20 1.76 03:40 1.25 09:45 3.56 2.64 02:20 0.046 09:45 0.257 0.144 0.144 -
10/30/2020 23:55 1.34 05:35 2.40 1.73 01:20 1.29 05:30 3.97 2.64 23:40 0.053 05:35 0.318 0.139 0.139 -
10/31/2020 00:20 1.31 10:10 2.06 1.63 00:10 1.23 10:10 3.58 2.39 00:10 0.042 10:10 0.234 0.117 0.117 -
11/01/2020 03:05 1.31 10:45 2.05 1.63 02:15 1.18 10:45 3.45 2.40 02:15 0.042 10:45 0.224 0.115 0.115 -
11/02/2020 03:45 1.32 15:55 2.09 1.71 02:25 1.17 15:55 3.60 2.57 02:25 0.040 15:55 0.242 0.134 0.134 -
11/03/2020 03:15 1.30 16:05 2.57 1.80 02:50 1.13 10:15 4.31 2.76 02:50 0.039 10:15 0.364 0.161 0.161 -
11/04/2020 03:20 1.41 12:30 2.25 1.75 02:30 1.26 12:30 3.85 2.75 02:30 0.049 12:30 0.288 0.147 0.147 -
Page 655 of 1163
135
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/05/2020 03:20 1.36 08:40 2.24 1.74 05:10 1.28 08:40 3.75 2.70 05:10 0.049 08:40 0.277 0.144 0.144 -
11/06/2020 05:00 1.37 09:05 2.32 1.77 23:55 1.38 09:05 3.84 2.66 04:45 0.052 09:05 0.300 0.144 0.144 -
11/07/2020 03:05 1.42 09:25 2.03 1.68 03:45 1.30 09:20 3.35 2.41 03:45 0.052 09:25 0.216 0.121 0.121 -
11/08/2020 02:50 1.33 10:05 2.01 1.64 00:55 1.27 10:00 3.41 2.42 00:55 0.046 10:05 0.210 0.117 0.117 -
11/09/2020 02:40 1.42 10:50 2.14 1.72 03:55 1.23 10:45 3.75 2.64 01:50 0.049 10:50 0.255 0.138 0.138 -
11/10/2020 03:30 1.33 16:20 2.20 1.68 02:50 1.17 10:10 3.78 2.69 02:50 0.042 16:20 0.270 0.138 0.138 -
11/11/2020 02:40 1.31 10:15 2.09 1.69 02:15 1.25 18:15 3.75 2.67 02:45 0.043 18:15 0.249 0.137 0.137 -
11/12/2020 02:30 1.34 10:05 2.13 1.72 03:35 1.23 10:05 3.66 2.69 03:35 0.044 10:05 0.252 0.140 0.140 -
11/13/2020 23:55 1.40 06:30 2.22 1.78 23:55 1.37 13:55 3.79 2.75 23:55 0.051 06:35 0.273 0.150 0.150 -
11/14/2020 05:55 1.30 18:05 2.12 1.66 01:45 1.12 18:05 3.59 2.46 01:45 0.041 18:05 0.247 0.124 0.124 -
11/15/2020 03:40 1.31 23:00 1.92 1.63 02:30 1.33 23:05 3.43 2.41 02:30 0.050 23:05 0.202 0.115 0.115 -
11/16/2020 03:45 1.28 12:25 2.43 1.74 04:20 1.18 13:25 3.68 2.53 04:20 0.042 12:25 0.304 0.138 0.138 -
11/17/2020 04:20 1.31 14:10 2.17 1.73 01:45 1.15 10:40 3.63 2.63 01:45 0.044 14:10 0.251 0.141 0.141 -
11/18/2020 02:30 1.30 10:40 2.14 1.74 00:35 1.32 18:25 3.54 2.58 00:35 0.050 10:35 0.242 0.138 0.138 -
11/19/2020 02:40 1.30 13:00 2.58 1.78 02:25 1.08 12:45 4.48 2.72 02:25 0.037 12:45 0.388 0.152 0.152 -
11/20/2020 23:50 1.35 10:35 2.07 1.71 03:00 1.41 10:30 3.66 2.61 03:00 0.057 10:30 0.240 0.136 0.136 -
11/21/2020 03:00 1.33 10:10 1.98 1.63 00:40 1.34 10:10 3.43 2.33 02:15 0.051 10:10 0.212 0.112 0.112 -
11/22/2020 04:10 1.32 09:10 1.97 1.64 06:05 1.36 18:45 3.47 2.37 01:55 0.050 18:45 0.211 0.115 0.115 -
11/23/2020 02:40 1.34 09:35 2.08 1.73 01:30 1.31 11:05 3.62 2.58 01:20 0.052 11:05 0.241 0.136 0.136 -
11/24/2020 05:25 1.31 15:45 2.39 1.71 02:15 1.14 15:45 3.92 2.58 02:15 0.042 15:45 0.319 0.136 0.136 -
11/25/2020 03:10 1.33 13:10 2.03 1.68 03:35 1.28 17:35 3.64 2.58 03:35 0.045 13:10 0.223 0.131 0.131 -
11/26/2020 05:00 1.34 10:55 1.84 1.56 03:45 1.33 09:45 3.39 2.30 01:25 0.053 09:45 0.182 0.103 0.103 -
11/27/2020 03:50 1.32 10:40 2.00 1.62 06:40 1.27 10:40 3.42 2.36 00:20 0.046 10:40 0.215 0.113 0.113 -
11/28/2020 05:00 1.30 09:20 2.07 1.58 02:55 1.10 09:20 3.42 2.27 02:55 0.039 09:20 0.226 0.106 0.106 -
11/29/2020 04:50 1.31 09:50 1.95 1.60 03:20 1.32 09:45 3.27 2.28 03:20 0.048 09:45 0.194 0.107 0.107 -
11/30/2020 01:45 1.33 11:15 2.33 1.76 01:00 1.29 14:05 3.50 2.61 03:05 0.048 11:15 0.273 0.141 0.141 -
12/01/2020 02:35 1.33 11:15 2.17 1.73 01:05 1.21 11:15 3.64 2.53 01:35 0.046 11:15 0.258 0.135 0.135 -
12/02/2020 05:10 1.38 11:50 2.07 1.71 01:00 1.17 19:00 3.48 2.56 01:00 0.049 14:35 0.226 0.134 0.134 -
12/03/2020 02:20 1.29 11:55 2.17 1.69 01:25 1.39 13:55 3.53 2.53 01:25 0.053 11:55 0.239 0.130 0.130 -
12/04/2020 04:15 1.31 10:30 2.09 1.70 02:20 1.26 09:05 3.49 2.49 03:35 0.045 09:05 0.230 0.128 0.128 -
12/05/2020 23:50 1.34 11:15 2.12 1.64 02:00 1.26 11:15 3.49 2.35 02:00 0.047 11:15 0.239 0.115 0.115 -
12/06/2020 02:15 1.28 11:30 2.06 1.62 02:20 1.20 11:25 3.33 2.27 02:20 0.039 11:25 0.204 0.108 0.108 -
12/07/2020 03:05 1.31 10:05 2.16 1.70 01:40 1.03 11:25 3.74 2.60 01:40 0.037 11:25 0.263 0.135 0.135 -
12/08/2020 01:45 1.38 11:50 2.41 1.82 02:50 1.62 11:45 3.97 2.92 02:50 0.066 11:45 0.319 0.165 0.165 -
12/09/2020 04:50 1.44 10:55 2.13 1.72 04:20 1.50 13:50 3.59 2.71 04:20 0.061 10:55 0.246 0.140 0.140 -
12/10/2020 02:25 1.34 13:25 2.08 1.69 02:35 1.16 10:20 3.66 2.59 02:35 0.041 10:20 0.240 0.132 0.132 -
12/11/2020 01:25 1.31 10:15 2.32 1.68 03:30 1.24 10:15 3.64 2.54 03:30 0.043 10:15 0.284 0.130 0.130 -
12/12/2020 04:15 1.31 10:55 2.03 1.60 04:05 1.15 12:40 3.40 2.30 04:05 0.039 10:55 0.216 0.108 0.108 -
12/13/2020 05:55 1.31 10:30 2.06 1.60 02:10 1.11 10:30 3.54 2.40 02:10 0.041 10:30 0.232 0.113 0.113 -
12/14/2020 01:35 1.33 12:30 2.10 1.68 23:50 1.28 19:05 3.52 2.54 03:45 0.049 12:30 0.235 0.130 0.130 -
12/15/2020 03:00 1.34 15:55 2.50 1.77 00:25 1.20 15:55 4.49 2.78 04:50 0.048 15:55 0.389 0.154 0.154 -
12/16/2020 03:40 1.37 14:05 2.47 1.76 01:50 1.32 14:00 3.85 2.79 03:40 0.049 14:05 0.323 0.152 0.152 -
12/17/2020 04:10 1.37 12:30 2.17 1.73 02:15 1.18 15:10 3.77 2.67 04:05 0.043 12:30 0.248 0.140 0.140 -
12/18/2020 02:45 1.38 10:20 2.14 1.74 01:50 1.28 10:20 3.57 2.66 01:50 0.048 10:20 0.247 0.141 0.141 -
12/19/2020 03:35 1.33 17:05 2.17 1.67 04:25 1.34 17:05 3.59 2.51 04:55 0.049 17:05 0.254 0.126 0.126 -
12/20/2020 03:45 1.37 16:25 2.10 1.64 00:40 1.38 16:20 3.61 2.39 04:05 0.052 16:20 0.240 0.116 0.116 -
12/21/2020 02:00 1.53 16:35 2.78 1.94 01:40 1.44 16:15 4.08 2.97 01:40 0.062 16:35 0.383 0.184 0.184 -
12/22/2020 23:10 1.58 02:00 2.53 1.82 23:00 1.85 02:00 4.37 2.83 23:00 0.085 02:00 0.387 0.158 0.158 -
12/23/2020 01:45 1.42 13:00 2.12 1.72 02:25 1.14 10:25 3.60 2.65 02:25 0.045 10:25 0.244 0.138 0.138 -
12/24/2020 03:50 1.37 08:45 2.02 1.66 02:10 1.14 08:45 3.54 2.48 02:10 0.042 08:45 0.225 0.123 0.123 -
12/25/2020 04:00 1.34 16:20 1.90 1.58 02:50 1.30 16:15 3.45 2.37 02:50 0.049 16:20 0.199 0.108 0.108 -
12/26/2020 04:10 1.35 10:35 1.90 1.59 03:30 1.26 10:30 3.43 2.39 03:30 0.046 10:35 0.197 0.111 0.111 -
12/27/2020 03:35 1.33 09:05 1.96 1.61 01:05 1.28 09:15 3.41 2.45 01:05 0.051 09:10 0.207 0.116 0.116 -
12/28/2020 03:20 1.33 11:15 2.08 1.68 04:40 1.21 11:15 3.61 2.56 04:40 0.043 11:15 0.241 0.130 0.130 -
12/29/2020 02:25 1.34 09:25 2.14 1.74 01:50 1.19 09:25 3.65 2.65 01:50 0.043 09:25 0.254 0.142 0.142 -
12/30/2020 03:55 1.58 09:15 2.43 1.89 01:25 1.84 09:15 3.88 3.11 03:35 0.085 09:15 0.323 0.183 0.183 -
12/31/2020 02:55 1.60 11:45 2.14 1.78 03:30 2.18 07:50 3.65 3.00 03:30 0.100 12:35 0.247 0.162 0.162 -
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 29.674 2.88
Average 1.77 2.72 0.148
Page 656 of 1163
136
Page 657 of 1163
137
AUB_A9_71031
Site Commentary
S ITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.73 0.76 0.063
Minimum 1.39 0.33 0.011
Maximum 6.15 1.48 0.336
Min Time 12/07/2020 3:00:00 AM 04/03/2021 2:00:00 AM 12/07/2020 3:00:00 AM
Max Time 01/03/2021 12:00:00 AM 01/03/2021 12:00:00 AM 01/03/2021 12:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 98.801
VFINAL (ft/s) 98.801
QFINAL (MGD - Total MG) 98.801
Pipe Round (10 in H)
Silt 0.00 (in)
Page 658 of 1163
4455 S. 134th Place
Tukwila, WA 98168
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Hydrograph Report
AUB_A9_71031
Page 659 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_A9_71031
Page 660 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_A9_71031Pipe: Round (10 in H), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 03:55 2.27 15:55 3.91 3.12 03:50 0.63 15:55 1.08 0.87 03:50 0.038 15:55 0.138 0.085 0.085 0.51
01/02/2021 05:00 2.35 23:55 5.98 3.68 05:05 0.63 23:50 1.45 0.99 05:05 0.040 23:55 0.319 0.127 0.127 1.69
01/03/2021 22:40 3.63 00:55 6.23 4.51 22:40 1.00 00:50 1.50 1.19 22:40 0.116 00:55 0.346 0.187 0.187 0.65
01/04/2021 03:55 3.37 12:15 4.43 3.85 03:50 0.95 12:50 1.21 1.07 03:50 0.100 12:15 0.180 0.134 0.134 0.48
01/05/2021 02:50 2.81 21:20 4.25 3.50 02:35 0.79 21:15 1.18 0.99 02:50 0.064 21:25 0.169 0.111 0.111 0.52
01/06/2021 23:10 2.98 10:10 4.13 3.69 23:10 0.83 10:15 1.17 1.03 23:10 0.073 10:15 0.161 0.123 0.123 0.22
01/07/2021 05:05 2.46 20:35 3.66 3.10 03:45 0.69 20:35 1.03 0.88 05:05 0.046 20:35 0.121 0.083 0.083 -
01/08/2021 03:10 2.30 17:45 3.59 2.99 03:20 0.63 17:55 1.02 0.85 03:10 0.039 17:55 0.116 0.077 0.077 0.22
01/09/2021 04:35 2.12 12:35 3.58 2.83 07:00 0.55 11:05 1.05 0.81 07:00 0.031 12:35 0.116 0.068 0.068 -
01/10/2021 04:50 1.99 11:50 3.47 2.75 04:50 0.55 11:45 0.99 0.78 04:50 0.027 11:45 0.107 0.064 0.064 0.07
01/11/2021 03:55 1.96 21:45 4.60 3.28 05:15 0.49 21:25 1.20 0.89 03:55 0.025 21:45 0.190 0.099 0.099 1.06
01/12/2021 00:05 3.69 09:35 6.03 5.15 00:00 1.00 09:30 1.44 1.29 00:05 0.118 09:30 0.317 0.238 0.238 2.10
01/13/2021 23:55 3.37 01:00 5.60 4.17 23:55 0.88 01:00 1.38 1.11 23:55 0.092 01:00 0.280 0.156 0.156 0.09
01/14/2021 23:55 2.87 20:30 4.00 3.37 23:55 0.77 20:30 1.07 0.92 23:55 0.065 20:30 0.140 0.097 0.097 0.01
01/15/2021 04:15 2.47 12:40 3.86 3.15 04:05 0.66 12:35 1.07 0.86 04:05 0.045 12:35 0.133 0.083 0.083 0.09
01/16/2021 03:55 2.25 12:15 4.01 3.04 01:35 0.43 12:15 1.12 0.87 03:55 0.038 12:15 0.148 0.081 0.081 -
01/17/2021 04:10 2.17 11:35 3.59 2.91 04:00 0.60 15:15 1.04 0.85 03:55 0.035 15:15 0.118 0.074 0.074 0.10
01/18/2021 04:25 1.94 19:35 3.54 2.80 04:25 0.56 19:30 1.02 0.82 04:25 0.027 19:30 0.113 0.068 0.068 -
01/19/2021 03:35 1.75 12:50 3.80 2.79 03:45 0.46 12:50 1.11 0.82 03:45 0.019 12:50 0.136 0.068 0.068 0.01
01/20/2021 04:35 1.89 18:25 3.60 2.76 05:35 0.54 18:20 1.05 0.81 04:35 0.026 18:20 0.119 0.067 0.067 -
01/21/2021 03:05 1.84 14:45 3.50 2.73 03:05 0.51 14:40 1.02 0.80 03:05 0.023 18:25 0.111 0.065 0.065 0.11
01/22/2021 03:35 1.84 19:35 3.48 2.70 03:35 0.52 19:35 1.01 0.80 03:35 0.023 19:35 0.110 0.063 0.063 -
01/23/2021 04:05 1.80 12:05 3.69 2.68 04:00 0.46 12:00 1.05 0.78 04:00 0.020 12:05 0.123 0.062 0.062 -
01/24/2021 02:30 1.88 13:15 3.72 2.78 02:25 0.54 12:05 1.06 0.81 02:25 0.025 13:15 0.126 0.067 0.067 0.16
01/25/2021 04:25 1.79 13:45 3.50 2.69 04:25 0.51 13:40 1.02 0.79 04:25 0.022 13:45 0.112 0.063 0.063 0.04
01/26/2021 02:35 1.81 14:15 3.40 2.68 05:10 0.46 11:50 1.00 0.79 05:10 0.020 14:15 0.105 0.062 0.062 -
01/27/2021 04:45 1.90 12:40 3.48 2.69 04:45 0.54 12:45 1.01 0.79 04:45 0.025 12:45 0.110 0.063 0.063 0.14
01/28/2021 02:05 1.93 18:05 3.54 2.81 02:00 0.55 12:50 1.01 0.83 02:00 0.027 18:05 0.113 0.069 0.069 0.24
01/29/2021 05:00 1.88 16:25 3.37 2.66 04:40 0.54 13:15 0.99 0.79 04:40 0.025 13:15 0.102 0.061 0.061 0.03
01/30/2021 06:30 1.90 13:05 3.43 2.60 05:50 0.52 13:05 0.99 0.76 04:40 0.026 13:05 0.106 0.058 0.058 0.07
01/31/2021 05:40 1.76 12:35 3.72 2.62 05:40 0.49 12:40 1.05 0.77 05:35 0.021 12:35 0.125 0.059 0.059 0.12
02/01/2021 01:15 2.06 19:00 4.14 3.04 01:00 0.59 19:05 1.15 0.87 01:10 0.031 19:05 0.156 0.083 0.083 0.82
02/02/2021 05:15 2.76 08:35 4.03 3.45 05:20 0.79 08:30 1.12 0.98 05:20 0.063 08:35 0.149 0.107 0.107 0.31
02/03/2021 04:45 2.59 18:50 3.89 3.16 04:40 0.74 18:50 1.09 0.92 04:40 0.054 18:50 0.139 0.088 0.088 0.06
02/04/2021 02:30 2.15 17:00 3.60 2.89 02:05 0.60 14:30 1.03 0.85 02:30 0.034 17:00 0.117 0.073 0.073 0.07
02/05/2021 04:55 2.15 18:15 3.39 2.77 04:50 0.59 09:55 1.02 0.81 04:50 0.033 09:55 0.107 0.066 0.066 0.01
02/06/2021 03:10 1.98 15:00 3.65 2.69 03:10 0.56 14:55 1.05 0.79 03:10 0.028 14:55 0.121 0.063 0.063 0.01
02/07/2021 05:10 1.98 11:40 3.53 2.71 04:25 0.53 11:25 1.00 0.77 04:25 0.027 11:30 0.111 0.061 0.061 -
02/08/2021 05:00 1.83 19:55 3.25 2.60 05:45 0.49 20:35 0.93 0.74 05:45 0.022 19:50 0.090 0.056 0.056 -
02/09/2021 02:55 1.74 11:25 3.41 2.58 02:55 0.43 11:30 0.95 0.73 02:50 0.018 11:30 0.101 0.055 0.055 -
02/10/2021 04:15 1.74 11:35 3.38 2.55 04:10 0.47 11:30 0.94 0.72 04:05 0.020 11:30 0.098 0.053 0.053 -
02/11/2021 02:25 1.70 18:10 3.28 2.55 02:40 0.42 19:20 0.92 0.73 02:40 0.016 18:15 0.091 0.054 0.054 -
02/12/2021 03:05 1.68 15:40 3.30 2.48 03:50 0.41 15:35 0.96 0.72 03:50 0.016 15:35 0.097 0.052 0.052 -
02/13/2021 05:05 1.70 21:15 3.38 2.45 05:05 0.44 21:15 0.95 0.71 05:05 0.017 21:15 0.099 0.050 0.050 0.08
02/14/2021 04:00 1.67 12:30 3.14 2.52 03:50 0.47 12:20 0.90 0.73 03:55 0.018 12:30 0.086 0.054 0.054 0.71
02/15/2021 00:05 2.42 17:00 4.86 3.83 00:00 0.71 15:05 1.23 1.04 00:00 0.047 17:00 0.210 0.134 0.134 0.78
02/16/2021 22:45 3.33 13:55 5.69 3.70 03:45 0.92 13:55 1.39 1.03 22:50 0.096 13:55 0.287 0.123 0.123 0.07
02/17/2021 03:45 2.59 00:00 3.74 3.17 03:40 0.75 12:40 1.09 0.92 03:40 0.055 12:40 0.129 0.089 0.089 -
02/18/2021 04:10 2.27 18:05 3.62 2.97 03:40 0.66 17:55 1.01 0.87 03:40 0.041 18:05 0.116 0.078 0.078 0.09
02/19/2021 01:55 2.40 14:45 3.89 2.99 02:05 0.69 14:45 1.11 0.87 01:50 0.046 14:45 0.141 0.078 0.078 0.17
02/20/2021 05:00 2.12 14:05 3.55 2.84 05:15 0.59 13:55 1.02 0.83 05:15 0.032 14:00 0.114 0.070 0.070 0.07
02/21/2021 04:55 2.05 23:50 3.83 2.82 04:40 0.55 23:50 1.08 0.82 04:40 0.029 23:50 0.134 0.069 0.069 0.42
02/22/2021 05:15 3.09 14:10 5.37 4.09 05:10 0.88 14:00 1.31 1.09 05:10 0.082 14:10 0.253 0.151 0.151 0.98
02/23/2021 04:00 2.98 21:30 4.34 3.60 04:00 0.84 21:40 1.15 1.00 04:00 0.074 21:30 0.167 0.115 0.115 0.27
02/24/2021 04:00 2.68 16:15 4.03 3.39 04:05 0.76 18:40 1.09 0.95 04:05 0.058 16:10 0.144 0.101 0.101 -
02/25/2021 02:30 2.43 16:50 3.90 3.33 03:25 0.70 10:50 1.04 0.92 02:30 0.048 16:45 0.131 0.096 0.096 0.18
02/26/2021 00:45 2.62 19:05 3.94 3.21 05:50 0.74 19:05 1.05 0.90 00:40 0.056 19:05 0.135 0.089 0.089 0.10
02/27/2021 06:00 2.23 13:30 3.81 3.05 06:00 0.63 15:30 1.10 0.86 06:00 0.037 13:25 0.128 0.080 0.080 0.02
02/28/2021 02:30 2.14 12:55 3.86 3.01 04:30 0.60 12:15 1.03 0.84 02:30 0.034 12:50 0.129 0.077 0.077 0.02
03/01/2021 05:15 1.95 18:10 3.78 2.94 05:20 0.55 18:10 0.99 0.81 05:15 0.027 18:10 0.121 0.072 0.072 -
03/02/2021 04:05 2.01 19:05 3.62 2.90 02:15 0.54 19:05 0.96 0.78 02:15 0.028 19:05 0.110 0.068 0.068 -
03/03/2021 04:25 1.93 15:25 3.66 2.91 04:20 0.55 18:55 0.97 0.78 04:20 0.027 15:25 0.112 0.069 0.069 -
03/04/2021 05:15 1.99 18:50 3.81 2.80 05:15 0.49 18:50 1.03 0.77 05:15 0.024 18:50 0.127 0.064 0.064 0.20
03/05/2021 03:20 1.93 19:20 3.56 2.78 03:20 0.53 19:15 0.94 0.78 03:20 0.025 19:20 0.106 0.064 0.064 0.05
03/06/2021 04:50 1.76 19:05 3.70 2.73 04:50 0.49 19:05 1.02 0.77 04:50 0.020 19:05 0.120 0.063 0.063 -
03/07/2021 05:45 1.66 11:05 3.32 2.62 05:35 0.45 10:55 0.93 0.74 05:35 0.018 11:00 0.095 0.057 0.057 0.04
03/08/2021 05:15 1.83 11:30 3.31 2.63 05:15 0.49 18:25 0.92 0.74 05:15 0.022 11:35 0.093 0.057 0.057 -
03/09/2021 02:55 1.84 20:05 3.39 2.57 05:10 0.51 20:05 0.93 0.73 02:55 0.023 20:05 0.097 0.054 0.054 0.01
03/10/2021 02:35 1.73 10:50 3.24 2.56 02:50 0.42 18:30 0.92 0.73 02:50 0.017 18:25 0.090 0.054 0.054 -
03/11/2021 04:10 1.65 19:20 3.26 2.55 04:20 0.44 10:20 0.88 0.72 04:05 0.017 19:15 0.087 0.053 0.053 -
Page 661 of 1163
141
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:45 1.65 09:25 3.16 2.57 04:20 0.41 09:20 0.87 0.68 04:20 0.016 09:30 0.083 0.051 0.051 -
03/13/2021 03:50 1.77 14:40 3.34 2.58 03:45 0.44 14:45 0.93 0.71 03:45 0.019 14:45 0.096 0.053 0.053 -
03/14/2021 05:05 1.79 16:55 3.42 2.63 02:45 0.49 16:40 0.92 0.73 05:40 0.021 16:55 0.097 0.057 0.057 0.30
03/15/2021 04:00 1.69 13:05 3.41 2.62 03:45 0.46 13:05 0.90 0.72 04:00 0.018 13:05 0.095 0.055 0.055 -
03/16/2021 05:10 1.72 19:25 3.65 2.56 01:25 0.49 19:25 0.98 0.72 01:25 0.020 19:25 0.114 0.053 0.053 -
03/17/2021 02:40 1.66 11:30 3.44 2.54 02:50 0.45 11:30 0.93 0.70 02:35 0.018 11:30 0.100 0.052 0.052 -
03/18/2021 02:25 1.69 16:45 3.29 2.55 02:25 0.43 15:50 0.88 0.71 02:25 0.017 16:40 0.089 0.053 0.053 0.11
03/19/2021 03:20 1.63 11:10 3.28 2.53 03:15 0.43 11:10 0.89 0.70 03:15 0.016 11:10 0.090 0.051 0.051 0.03
03/20/2021 02:55 1.56 10:00 3.29 2.56 03:00 0.42 09:55 0.90 0.71 03:00 0.015 09:55 0.090 0.053 0.053 0.17
03/21/2021 03:45 1.55 11:55 3.46 2.53 03:40 0.40 11:55 0.90 0.69 03:40 0.014 11:55 0.098 0.051 0.051 0.07
03/22/2021 03:10 1.72 18:30 3.72 2.79 03:10 0.47 10:55 0.89 0.69 03:10 0.019 18:30 0.100 0.057 0.057 0.11
03/23/2021 02:40 1.80 11:10 3.82 2.86 02:35 0.39 11:10 0.84 0.63 02:35 0.017 11:10 0.104 0.054 0.054 -
03/24/2021 01:30 1.80 19:30 3.82 2.85 01:40 0.40 19:20 0.84 0.63 01:40 0.017 19:25 0.103 0.055 0.055 0.34
03/25/2021 02:45 2.47 14:10 3.98 3.20 02:35 0.53 13:20 0.89 0.71 02:40 0.036 13:20 0.111 0.070 0.070 0.27
03/26/2021 03:00 2.00 11:10 3.60 2.88 02:35 0.45 11:05 0.84 0.68 02:35 0.023 11:10 0.095 0.059 0.059 -
03/27/2021 04:00 1.98 13:05 3.69 2.79 02:00 0.45 13:00 0.89 0.66 02:00 0.023 13:00 0.105 0.055 0.055 -
03/28/2021 04:20 1.74 15:15 4.34 3.04 04:10 0.38 15:15 0.95 0.66 04:05 0.016 15:15 0.139 0.064 0.064 0.37
03/29/2021 02:05 2.35 19:40 3.99 3.24 02:00 0.39 19:40 0.77 0.59 02:00 0.025 19:40 0.101 0.060 0.060 -
03/30/2021 03:40 2.18 20:15 4.12 3.17 03:25 0.38 20:15 0.79 0.57 03:30 0.022 20:15 0.108 0.057 0.057 -
03/31/2021 04:05 2.14 18:35 4.09 3.17 02:35 0.32 18:30 0.78 0.58 02:35 0.018 18:30 0.105 0.058 0.058 -
04/01/2021 03:45 2.02 18:30 3.84 3.07 03:25 0.34 18:25 0.72 0.57 03:25 0.018 18:25 0.090 0.055 0.055 -
04/02/2021 03:40 2.03 20:10 3.85 3.04 03:45 0.31 20:05 0.72 0.55 03:45 0.016 20:10 0.091 0.052 0.052 -
04/03/2021 03:00 1.84 11:35 4.30 3.10 05:20 0.27 11:25 0.82 0.56 02:25 0.014 11:30 0.117 0.055 0.055 -
04/04/2021 04:45 1.94 12:45 3.87 3.03 04:25 0.35 09:55 0.74 0.57 04:35 0.017 12:45 0.092 0.054 0.054 -
04/05/2021 03:15 1.87 20:20 3.89 2.98 01:15 0.34 18:00 0.75 0.58 03:15 0.016 20:20 0.092 0.053 0.053 -
04/06/2021 03:15 1.87 19:30 4.13 2.96 03:05 0.35 19:30 0.81 0.58 03:05 0.016 19:30 0.112 0.053 0.053 -
04/07/2021 01:50 1.93 17:35 3.84 2.98 02:35 0.31 17:30 0.77 0.58 01:45 0.018 17:35 0.096 0.053 0.053 0.22
04/08/2021 02:05 1.87 14:35 3.99 3.06 04:10 0.35 14:35 0.78 0.58 01:50 0.018 14:35 0.103 0.055 0.055 -
04/09/2021 03:00 1.99 12:00 4.03 3.14 03:05 0.37 18:50 0.81 0.61 03:00 0.019 19:50 0.103 0.060 0.060 0.03
04/10/2021 03:10 2.16 11:30 3.92 3.15 03:05 0.44 20:10 0.76 0.62 03:05 0.025 11:25 0.096 0.061 0.061 0.02
04/11/2021 03:20 1.97 20:25 4.19 3.10 02:20 0.38 20:20 0.86 0.62 01:55 0.020 20:25 0.121 0.060 0.060 -
04/12/2021 03:10 2.24 11:50 3.83 3.15 05:20 0.42 12:40 0.76 0.61 03:00 0.026 19:55 0.093 0.060 0.060 -
04/13/2021 02:30 2.03 19:15 4.14 3.13 02:05 0.42 19:15 0.82 0.62 02:30 0.021 19:15 0.113 0.061 0.061 -
04/14/2021 02:30 2.16 17:30 4.43 3.10 02:25 0.38 20:45 0.85 0.62 02:25 0.021 20:50 0.107 0.060 0.060 -
09/24/2020 23:55 2.08 13:05 3.17 2.71 23:55 0.57 13:00 1.02 0.83 23:55 0.030 13:00 0.096 0.065 0.035 -
09/25/2020 02:00 1.81 12:30 3.28 2.55 03:55 0.32 12:25 1.03 0.76 03:45 0.016 12:30 0.104 0.057 0.057 -
09/26/2020 02:40 1.62 21:55 3.01 2.43 02:35 0.43 21:55 0.96 0.75 02:35 0.016 21:55 0.086 0.052 0.052 -
09/27/2020 06:35 1.70 13:50 3.74 2.49 06:35 0.47 13:45 1.19 0.77 06:35 0.019 13:50 0.143 0.056 0.056 -
09/28/2020 04:30 1.70 11:25 3.19 2.43 03:25 0.35 11:20 1.02 0.73 03:35 0.014 11:25 0.099 0.051 0.051 -
09/29/2020 03:30 1.50 20:20 3.10 2.47 03:40 0.40 20:15 1.03 0.76 03:30 0.013 20:15 0.096 0.054 0.054 -
09/30/2020 03:35 1.63 19:05 3.32 2.45 03:25 0.45 19:10 1.06 0.76 03:25 0.017 19:05 0.108 0.054 0.054 -
10/01/2020 02:15 1.60 19:00 3.18 2.52 03:10 0.36 19:00 0.99 0.72 03:25 0.013 19:00 0.095 0.053 0.053 -
10/02/2020 03:05 1.74 17:15 3.15 2.50 03:20 0.37 11:20 0.97 0.71 03:25 0.015 17:15 0.092 0.052 0.052 -
10/03/2020 02:05 1.70 11:15 3.10 2.50 04:10 0.38 11:10 0.96 0.73 04:05 0.016 11:15 0.089 0.052 0.052 0.01
10/04/2020 04:10 1.63 15:00 3.23 2.55 04:05 0.35 08:30 0.97 0.71 04:05 0.013 15:00 0.093 0.054 0.054 0.01
10/05/2020 02:15 1.91 13:40 3.21 2.62 02:25 0.32 19:55 0.99 0.70 02:25 0.015 19:55 0.096 0.054 0.054 -
10/06/2020 02:40 1.61 15:40 3.50 2.56 02:35 0.33 21:45 0.99 0.71 02:35 0.012 21:45 0.090 0.053 0.053 -
10/07/2020 02:10 1.72 16:40 3.10 2.47 04:00 0.37 10:55 1.07 0.74 02:05 0.016 14:55 0.093 0.052 0.052 -
10/08/2020 02:05 1.54 19:25 3.26 2.41 02:00 0.39 19:25 1.02 0.74 02:00 0.013 19:25 0.102 0.052 0.052 -
10/09/2020 04:15 1.47 23:20 3.65 2.44 04:15 0.37 23:20 1.18 0.76 04:15 0.012 23:20 0.137 0.054 0.054 0.64
10/10/2020 04:05 2.03 01:50 3.68 2.68 23:55 0.61 01:45 1.16 0.85 04:00 0.032 01:45 0.136 0.066 0.066 1.04
10/11/2020 04:15 1.59 14:35 3.42 2.47 05:05 0.41 14:30 1.09 0.77 05:00 0.015 14:35 0.116 0.057 0.057 0.53
10/12/2020 05:10 1.45 20:10 3.25 2.40 03:55 0.37 20:15 1.05 0.75 03:55 0.012 20:10 0.104 0.052 0.052 -
10/13/2020 01:20 1.71 07:40 3.48 2.52 01:20 0.47 07:40 1.13 0.79 01:15 0.019 07:40 0.124 0.058 0.058 0.61
10/14/2020 04:10 1.43 10:00 3.71 2.39 04:10 0.35 10:05 1.12 0.74 04:05 0.011 10:05 0.128 0.051 0.051 -
10/15/2020 03:30 1.50 12:30 3.14 2.47 03:25 0.38 20:30 1.01 0.77 03:25 0.013 12:30 0.094 0.055 0.055 -
10/16/2020 03:35 1.45 13:10 2.94 2.36 03:25 0.33 14:40 0.94 0.72 03:30 0.010 13:05 0.080 0.049 0.049 -
10/17/2020 04:10 1.64 12:35 3.11 2.43 04:05 0.43 10:00 0.97 0.72 04:05 0.016 12:35 0.090 0.051 0.051 0.01
10/18/2020 04:10 1.56 18:15 3.23 2.49 04:25 0.30 18:10 1.00 0.71 04:25 0.011 18:10 0.098 0.053 0.053 0.03
10/19/2020 03:50 1.64 12:00 3.17 2.46 03:55 0.39 11:55 1.02 0.72 03:50 0.015 11:55 0.097 0.051 0.051 0.05
10/20/2020 03:35 1.53 19:40 3.14 2.38 04:20 0.34 19:40 1.02 0.71 03:30 0.012 19:40 0.097 0.049 0.049 -
10/21/2020 02:05 1.46 18:55 3.04 2.33 02:10 0.35 18:55 0.97 0.70 02:05 0.011 18:55 0.088 0.047 0.047 0.01
10/22/2020 03:45 1.47 11:25 2.98 2.33 02:05 0.38 11:35 0.94 0.70 03:45 0.012 11:35 0.082 0.046 0.046 -
10/23/2020 03:30 1.44 12:50 3.07 2.36 02:10 0.30 19:50 0.96 0.70 02:05 0.010 19:50 0.086 0.047 0.047 0.20
10/24/2020 06:45 1.73 09:05 3.07 2.36 06:35 0.47 09:10 0.99 0.71 06:45 0.019 09:10 0.091 0.047 0.047 0.02
10/25/2020 05:55 1.45 12:20 3.10 2.35 04:30 0.34 09:00 0.99 0.69 05:25 0.011 09:00 0.090 0.047 0.047 -
10/26/2020 01:20 1.78 12:50 3.06 2.41 00:45 0.49 12:50 1.02 0.74 00:50 0.021 12:50 0.093 0.051 0.051 -
10/27/2020 04:00 1.34 19:05 3.04 2.30 03:45 0.31 19:05 0.98 0.68 03:35 0.009 19:05 0.089 0.045 0.045 -
10/28/2020 03:35 1.50 16:15 3.02 2.33 03:30 0.32 16:15 0.99 0.69 03:30 0.011 16:15 0.089 0.046 0.046 -
10/29/2020 02:15 1.58 19:25 3.19 2.37 02:15 0.37 19:25 1.02 0.70 02:15 0.013 19:25 0.099 0.048 0.048 -
10/30/2020 04:30 1.55 10:10 3.00 2.41 02:35 0.38 18:35 0.96 0.72 04:30 0.013 18:35 0.084 0.049 0.049 0.10
10/31/2020 02:20 1.58 13:10 3.27 2.40 02:30 0.41 13:10 1.01 0.72 02:15 0.015 13:10 0.101 0.050 0.050 -
11/01/2020 03:45 1.45 19:10 3.23 2.38 03:20 0.28 19:10 0.99 0.71 03:50 0.011 19:10 0.097 0.050 0.050 -
11/02/2020 04:05 1.48 17:45 3.00 2.32 03:15 0.36 13:40 0.96 0.70 03:45 0.012 17:45 0.085 0.046 0.046 -
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142
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/03/2020 03:50 1.44 10:30 3.46 2.47 03:45 0.35 10:30 1.08 0.76 03:45 0.011 10:30 0.117 0.056 0.056 0.83
11/04/2020 03:45 1.47 12:55 3.18 2.34 03:50 0.38 12:50 1.02 0.70 03:50 0.012 12:50 0.097 0.047 0.047 0.09
11/05/2020 04:30 1.53 13:10 3.09 2.42 04:35 0.39 13:10 0.98 0.74 04:35 0.013 13:10 0.091 0.052 0.052 0.34
11/06/2020 05:45 1.65 10:35 3.04 2.35 05:15 0.45 10:35 0.98 0.72 04:50 0.018 10:35 0.089 0.047 0.047 0.10
11/07/2020 03:35 1.49 15:20 3.15 2.38 03:20 0.40 15:10 0.98 0.73 03:15 0.014 15:15 0.093 0.049 0.049 0.07
11/08/2020 05:15 1.36 21:05 3.17 2.38 05:15 0.36 21:00 1.01 0.72 05:20 0.010 21:00 0.096 0.050 0.050 0.01
11/09/2020 05:15 1.39 19:45 3.10 2.32 05:15 0.35 19:45 1.00 0.71 05:15 0.010 19:45 0.093 0.047 0.047 0.04
11/10/2020 03:15 1.41 09:25 3.11 2.34 02:10 0.33 09:20 0.97 0.71 03:15 0.010 09:25 0.091 0.047 0.047 0.03
11/11/2020 03:45 1.41 15:45 3.02 2.32 03:15 0.37 15:45 0.96 0.71 03:25 0.011 15:45 0.086 0.047 0.047 -
11/12/2020 05:35 1.40 11:45 3.13 2.32 04:05 0.31 11:40 1.00 0.71 05:35 0.010 11:45 0.095 0.047 0.047 0.16
11/13/2020 01:55 1.67 13:05 3.38 2.44 01:55 0.47 13:00 1.04 0.75 01:55 0.018 13:00 0.108 0.051 0.051 0.38
11/14/2020 04:10 1.56 18:45 3.47 2.42 04:15 0.40 18:40 1.08 0.73 04:10 0.014 18:40 0.117 0.052 0.052 0.47
11/15/2020 08:20 1.45 12:50 3.39 2.39 06:10 0.36 12:50 1.05 0.73 04:25 0.012 12:50 0.110 0.051 0.051 0.19
11/16/2020 02:30 1.65 13:30 3.43 2.41 03:50 0.46 13:20 1.07 0.74 02:25 0.018 13:25 0.114 0.051 0.051 0.31
11/17/2020 05:05 1.44 16:20 3.18 2.40 04:55 0.41 19:05 1.00 0.73 05:00 0.013 19:05 0.096 0.050 0.050 0.20
11/18/2020 03:45 1.46 17:50 3.23 2.42 03:50 0.37 11:35 1.00 0.73 03:35 0.012 17:50 0.099 0.052 0.052 0.30
11/19/2020 02:30 1.64 13:05 3.49 2.48 02:25 0.44 13:00 1.09 0.75 02:20 0.017 13:00 0.119 0.054 0.054 0.50
11/20/2020 05:10 1.80 16:20 2.98 2.44 05:25 0.50 11:00 0.94 0.74 05:05 0.022 11:00 0.081 0.051 0.051 0.01
11/21/2020 01:55 1.58 12:25 3.13 2.41 01:55 0.45 12:15 0.98 0.73 01:55 0.016 12:20 0.091 0.051 0.051 -
11/22/2020 05:45 1.52 13:05 3.17 2.41 03:30 0.41 13:10 0.99 0.72 05:15 0.014 13:10 0.094 0.050 0.050 0.21
11/23/2020 04:40 1.45 17:30 3.03 2.42 04:40 0.35 17:30 0.93 0.73 04:40 0.011 17:30 0.084 0.050 0.050 0.14
11/24/2020 05:05 1.59 16:15 3.24 2.41 05:00 0.44 16:10 0.99 0.72 04:55 0.016 16:15 0.098 0.050 0.050 0.21
11/25/2020 04:30 1.59 20:15 3.03 2.39 04:25 0.42 20:20 0.93 0.71 04:25 0.015 20:15 0.083 0.048 0.048 0.05
11/26/2020 05:55 1.71 13:15 3.14 2.38 05:45 0.39 13:10 0.98 0.70 05:45 0.016 13:15 0.093 0.048 0.048 0.02
11/27/2020 05:05 1.62 13:30 3.15 2.43 05:05 0.39 13:25 0.97 0.69 05:05 0.014 13:30 0.092 0.048 0.048 -
11/28/2020 05:55 1.63 13:15 3.19 2.40 05:35 0.39 13:10 1.00 0.69 05:30 0.015 13:10 0.096 0.047 0.047 0.05
11/29/2020 05:40 1.59 13:05 3.04 2.42 05:55 0.40 15:20 0.95 0.70 04:30 0.015 15:20 0.085 0.049 0.049 -
11/30/2020 03:05 1.63 14:25 3.01 2.47 03:15 0.43 21:40 0.94 0.74 03:15 0.016 18:55 0.083 0.052 0.052 0.36
12/01/2020 01:35 1.46 17:30 3.05 2.33 01:30 0.36 19:35 0.98 0.70 01:35 0.011 17:35 0.087 0.046 0.046 -
12/02/2020 03:45 1.25 20:50 3.06 2.33 03:40 0.33 20:50 0.96 0.69 03:35 0.009 20:50 0.088 0.046 0.046 0.01
12/03/2020 03:45 1.48 13:50 3.09 2.33 03:45 0.43 13:45 1.00 0.69 03:45 0.014 13:50 0.092 0.045 0.045 -
12/04/2020 03:55 1.59 20:55 2.96 2.30 03:50 0.42 19:25 0.92 0.69 03:50 0.015 20:55 0.080 0.044 0.044 -
12/05/2020 03:50 1.55 12:05 3.03 2.33 03:50 0.41 12:10 0.96 0.70 03:50 0.014 12:10 0.086 0.046 0.046 0.03
12/06/2020 03:15 1.53 13:10 3.50 2.40 03:15 0.41 12:50 1.02 0.72 03:15 0.014 13:10 0.113 0.050 0.050 0.03
12/07/2020 03:25 1.25 19:50 3.12 2.34 03:20 0.25 13:10 1.02 0.70 03:20 0.007 13:10 0.094 0.047 0.047 -
12/08/2020 04:55 1.50 19:55 3.37 2.54 04:55 0.40 19:50 1.06 0.77 04:55 0.013 19:55 0.110 0.058 0.058 0.87
12/09/2020 06:05 1.47 12:50 3.06 2.48 06:05 0.40 12:50 0.97 0.76 06:05 0.013 12:50 0.088 0.053 0.053 0.17
12/10/2020 04:00 1.49 23:25 3.46 2.41 03:55 0.40 13:05 1.05 0.69 04:00 0.013 23:20 0.110 0.048 0.048 0.07
12/11/2020 04:20 1.28 16:30 3.08 2.39 04:15 0.29 11:00 0.92 0.71 04:15 0.008 11:00 0.084 0.048 0.048 0.02
12/12/2020 05:50 1.44 20:40 3.45 2.35 05:50 0.37 20:40 1.02 0.69 05:45 0.012 20:40 0.110 0.046 0.046 0.01
12/13/2020 05:10 1.95 12:20 3.37 2.52 03:30 0.53 12:15 0.99 0.75 03:30 0.027 12:15 0.103 0.054 0.054 0.24
12/14/2020 03:50 1.56 12:40 3.15 2.37 03:25 0.42 12:30 0.95 0.70 03:15 0.015 12:40 0.091 0.047 0.047 0.05
12/15/2020 05:10 1.64 16:30 3.73 2.60 03:25 0.36 16:30 1.07 0.75 03:45 0.016 16:30 0.128 0.058 0.058 0.58
12/16/2020 04:50 1.79 17:35 3.39 2.66 04:30 0.53 17:30 0.98 0.77 04:30 0.023 17:40 0.103 0.061 0.061 0.39
12/17/2020 03:55 1.92 13:05 3.37 2.59 03:45 0.56 13:00 0.99 0.77 03:45 0.027 13:05 0.104 0.058 0.058 0.08
12/18/2020 03:05 1.76 19:40 3.32 2.53 03:20 0.51 19:30 0.97 0.75 03:20 0.021 19:40 0.099 0.054 0.054 0.25
12/19/2020 06:50 1.73 20:35 3.52 2.63 06:55 0.48 20:35 1.00 0.77 06:45 0.020 20:35 0.110 0.060 0.060 0.37
12/20/2020 05:40 2.05 11:30 3.36 2.66 05:45 0.61 12:45 1.02 0.79 05:40 0.032 12:45 0.103 0.061 0.061 0.04
12/21/2020 02:10 2.05 18:45 4.66 3.18 02:10 0.60 18:35 1.26 0.93 02:10 0.031 18:45 0.202 0.095 0.095 1.07
12/22/2020 23:10 2.59 00:00 3.52 3.05 21:45 0.78 13:10 1.05 0.92 23:10 0.056 13:15 0.114 0.084 0.084 -
12/23/2020 05:15 2.11 12:40 3.32 2.71 05:25 0.58 12:40 1.05 0.81 05:10 0.032 12:40 0.107 0.064 0.064 -
12/24/2020 04:45 1.69 12:25 3.22 2.55 04:45 0.41 12:25 1.00 0.76 04:45 0.016 12:25 0.098 0.056 0.056 -
12/25/2020 04:00 1.76 18:35 3.27 2.52 03:45 0.50 18:35 1.00 0.76 03:50 0.021 18:35 0.100 0.055 0.055 0.49
12/26/2020 04:25 1.90 13:10 3.12 2.53 06:30 0.53 12:05 0.97 0.76 06:30 0.025 12:05 0.091 0.055 0.055 0.02
12/27/2020 05:10 1.60 12:30 3.48 2.59 05:10 0.43 12:30 0.98 0.74 05:10 0.015 12:30 0.107 0.057 0.057 0.13
12/28/2020 05:00 1.71 13:05 3.24 2.50 05:00 0.48 12:55 0.95 0.74 05:00 0.019 13:05 0.094 0.053 0.053 -
12/29/2020 05:20 1.54 19:10 3.30 2.54 05:20 0.43 19:10 0.95 0.75 05:20 0.015 19:10 0.096 0.056 0.056 0.14
12/30/2020 01:05 2.20 13:40 3.92 3.15 02:10 0.64 17:25 1.08 0.88 01:05 0.038 13:40 0.136 0.087 0.087 0.78
12/31/2020 07:00 2.71 12:50 3.75 3.18 21:10 0.74 11:55 1.07 0.89 06:25 0.058 11:55 0.128 0.086 0.086 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 12.854 30.65
Average 2.73 0.76 0.063
Page 663 of 1163
143
Page 664 of 1163
4455 S. 134th Place
Tukwila, WA 98168
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Hydrograph Report
AUB_RG
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AUB_Y-1_41016
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced surcharge events during the month of January.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 5.58 1.36 0.421
Minimum 3.79 0.49 0.088
Maximum 23.30 2.25 0.907
Min Time 10/21/2020 3:00:00 AM 09/22/2020 3:00:00 AM 09/22/2020 3:00:00 AM
Max Time 01/12/2021 9:00:00 PM 02/23/2021 10:00:00 PM 01/12/2021 9:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical rep orts are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 100
VFINAL (ft/s) 100
QFINAL (MGD - Total MG) 100
Pipe Elliptical (17.63 in H x 18 in W)
Silt 0.00 (in)
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Scattergraph Report
AUB_Y-1_41016
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_Y-1_41016Pipe: Elliptical (17.63 in H x 18 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 06:20 5.13 16:20 6.86 6.12 04:50 0.98 12:10 1.92 1.60 04:50 0.269 13:25 0.762 0.563 0.563 0.51
01/02/2021 05:35 5.13 22:35 19.58 8.24 23:30 0.70 15:05 1.92 1.40 05:35 0.265 22:40 0.817 0.615 0.615 1.69
01/03/2021 06:30 6.30 14:15 19.43 12.12 12:05 0.69 08:55 1.86 1.10 06:40 0.550 13:15 0.829 0.738 0.738 0.65
01/04/2021 03:55 5.97 20:50 14.44 9.23 20:50 0.82 00:55 1.86 1.31 03:55 0.461 17:30 0.832 0.719 0.719 0.48
01/05/2021 04:10 5.71 21:10 10.60 6.99 21:10 1.14 17:00 1.97 1.64 04:45 0.376 19:35 0.841 0.674 0.674 0.52
01/06/2021 04:10 5.86 21:10 9.15 6.79 03:45 1.29 12:15 2.04 1.73 03:25 0.427 18:15 0.854 0.688 0.688 0.22
01/07/2021 05:00 5.29 10:50 8.69 6.36 04:45 1.14 18:35 1.97 1.69 05:00 0.321 10:15 0.833 0.621 0.621 -
01/08/2021 04:45 5.13 18:45 7.08 6.14 04:45 1.02 18:25 1.98 1.66 04:45 0.276 18:25 0.808 0.585 0.585 0.22
01/09/2021 04:55 5.05 12:25 6.80 6.08 04:55 0.96 11:10 1.91 1.57 04:55 0.256 11:40 0.755 0.546 0.546 -
01/10/2021 06:00 5.00 12:55 7.21 6.06 04:50 0.91 11:25 1.87 1.53 06:00 0.237 12:35 0.736 0.532 0.532 0.07
01/11/2021 03:30 4.89 19:00 8.74 6.40 03:30 0.88 15:20 1.88 1.53 03:30 0.224 21:40 0.789 0.577 0.577 1.06
01/12/2021 02:20 5.95 20:55 23.57 14.73 14:50 0.70 07:30 1.88 1.08 02:40 0.459 21:00 0.933 0.748 0.748 2.10
01/13/2021 04:05 6.46 00:00 18.48 9.23 00:10 0.72 15:10 1.96 1.42 05:30 0.593 18:05 0.865 0.736 0.736 0.09
01/14/2021 04:40 5.67 19:25 8.79 6.67 04:25 1.17 18:50 1.92 1.63 04:25 0.367 18:50 0.818 0.638 0.638 0.01
01/15/2021 03:50 5.34 19:50 7.13 6.27 04:05 0.98 19:25 1.92 1.57 04:05 0.284 19:45 0.760 0.569 0.569 0.09
01/16/2021 05:50 5.10 13:45 9.14 6.32 05:50 0.93 17:35 1.86 1.44 05:50 0.249 12:25 0.754 0.528 0.528 -
01/17/2021 05:30 5.04 11:45 6.70 6.03 05:30 0.85 11:45 1.80 1.43 05:30 0.225 11:45 0.701 0.492 0.492 0.10
01/18/2021 04:35 4.96 12:30 7.76 6.06 03:55 0.83 11:40 1.80 1.40 04:35 0.214 12:05 0.730 0.488 0.488 -
01/19/2021 04:00 4.83 17:25 6.57 5.98 04:00 0.74 11:25 1.76 1.37 04:00 0.185 17:50 0.655 0.470 0.470 0.01
01/20/2021 05:00 4.93 20:55 6.53 5.91 05:00 0.75 19:55 1.66 1.31 05:00 0.192 20:55 0.623 0.437 0.437 -
01/21/2021 04:20 4.90 21:00 6.49 5.92 03:10 0.67 19:15 1.62 1.29 03:10 0.170 20:55 0.598 0.433 0.433 0.11
01/22/2021 04:15 4.83 20:25 6.40 5.78 04:15 0.68 20:25 1.72 1.26 05:05 0.169 20:25 0.629 0.409 0.409 -
01/23/2021 05:10 4.57 11:25 6.42 5.78 05:10 0.58 11:25 1.70 1.29 05:10 0.135 11:25 0.624 0.423 0.423 -
01/24/2021 04:35 4.59 13:20 6.54 5.81 04:35 0.61 14:00 1.78 1.34 05:25 0.140 13:20 0.666 0.447 0.447 0.16
01/25/2021 04:35 4.65 20:10 6.32 5.72 04:35 0.63 20:10 1.71 1.31 04:35 0.148 20:10 0.617 0.420 0.420 0.04
01/26/2021 04:20 4.46 20:25 6.30 5.65 03:50 0.59 20:25 1.71 1.27 03:50 0.131 20:25 0.613 0.402 0.402 -
01/27/2021 04:30 4.56 18:40 6.45 5.64 04:30 0.61 18:40 1.82 1.29 04:30 0.141 18:40 0.673 0.405 0.405 0.14
01/28/2021 03:55 4.42 20:35 6.29 5.60 03:25 0.56 21:15 1.75 1.30 03:25 0.124 21:15 0.628 0.405 0.405 0.24
01/29/2021 04:10 4.41 11:55 6.06 5.56 04:10 0.61 13:25 1.62 1.28 04:10 0.133 13:25 0.549 0.396 0.396 0.03
01/30/2021 06:20 4.36 12:50 6.23 5.59 05:00 0.59 10:15 1.74 1.31 05:00 0.128 12:35 0.599 0.413 0.413 0.07
01/31/2021 05:35 4.38 11:25 6.32 5.64 05:35 0.58 11:25 1.77 1.32 05:35 0.126 11:25 0.640 0.422 0.422 0.12
02/01/2021 03:10 4.53 19:45 6.55 5.74 03:10 0.65 19:00 1.86 1.38 03:10 0.148 19:00 0.695 0.450 0.450 0.82
02/02/2021 04:10 4.95 21:30 6.64 6.00 04:10 0.88 20:50 1.79 1.48 04:10 0.228 20:50 0.684 0.504 0.504 0.31
02/03/2021 03:15 5.15 21:10 6.54 5.99 04:20 0.89 21:50 1.71 1.42 03:15 0.245 21:50 0.645 0.482 0.482 0.06
02/04/2021 03:20 5.00 20:15 6.50 5.87 03:20 0.80 20:55 1.80 1.38 03:55 0.209 20:55 0.664 0.455 0.455 0.07
02/05/2021 03:55 4.82 18:55 6.30 5.75 03:55 0.70 18:30 1.66 1.36 03:55 0.173 18:55 0.597 0.437 0.437 0.01
02/06/2021 05:40 4.69 11:55 6.42 5.75 04:35 0.72 13:50 1.76 1.39 05:40 0.172 14:00 0.644 0.451 0.451 0.01
02/07/2021 05:20 4.61 12:40 6.51 5.75 05:20 0.65 12:40 1.78 1.37 05:20 0.151 12:40 0.668 0.447 0.447 -
02/08/2021 04:05 4.65 19:35 6.33 5.71 03:25 0.70 20:35 1.64 1.31 03:25 0.166 20:00 0.589 0.419 0.419 -
02/09/2021 03:25 4.52 20:55 6.37 5.63 03:25 0.65 19:40 1.63 1.25 03:25 0.147 20:55 0.595 0.393 0.393 -
02/10/2021 04:10 4.48 19:35 6.33 5.66 04:10 0.59 19:30 1.56 1.22 04:10 0.133 19:35 0.563 0.385 0.385 -
02/11/2021 04:15 4.46 20:45 6.28 5.62 04:15 0.59 20:45 1.65 1.22 04:15 0.131 20:45 0.590 0.381 0.381 -
02/12/2021 04:15 4.40 19:50 6.12 5.40 04:15 0.56 20:15 1.99 1.28 04:15 0.122 19:55 0.541 0.374 0.374 -
02/13/2021 05:05 3.82 19:05 5.75 4.92 04:35 0.72 21:20 2.08 1.54 05:05 0.128 13:35 0.607 0.408 0.408 0.08
02/14/2021 05:55 3.74 13:20 5.96 5.11 06:25 0.65 13:20 1.97 1.49 06:25 0.114 13:20 0.656 0.420 0.420 0.71
02/15/2021 04:00 4.50 14:15 8.37 6.00 04:00 0.88 12:25 2.00 1.61 04:00 0.199 21:45 0.787 0.560 0.560 0.78
02/16/2021 04:00 5.19 20:30 6.64 6.04 03:45 1.16 20:15 1.88 1.65 03:45 0.322 20:30 0.723 0.562 0.562 0.07
02/17/2021 14:45 5.06 13:45 6.53 5.76 03:30 0.98 14:35 2.21 1.62 03:30 0.260 20:50 0.707 0.514 0.514 -
02/18/2021 04:10 4.51 21:05 6.15 5.51 04:10 0.92 21:05 1.97 1.60 04:10 0.208 21:05 0.683 0.484 0.484 0.09
02/19/2021 04:50 4.61 19:55 6.19 5.59 04:50 0.89 19:50 1.82 1.49 04:50 0.208 19:55 0.636 0.462 0.462 0.17
02/20/2021 05:00 4.67 12:40 6.36 5.69 06:00 0.81 10:50 1.85 1.45 06:00 0.193 12:40 0.670 0.463 0.463 0.07
02/21/2021 05:10 4.63 11:25 6.29 5.72 04:05 0.74 11:15 1.82 1.45 05:10 0.175 13:30 0.648 0.469 0.469 0.42
02/22/2021 03:40 4.93 13:55 7.02 6.08 03:20 0.96 19:25 2.01 1.65 03:20 0.252 20:45 0.799 0.578 0.578 0.98
02/23/2021 16:00 5.27 21:15 6.72 5.85 02:40 1.07 20:40 2.32 1.81 02:55 0.306 21:05 0.865 0.589 0.589 0.27
02/24/2021 03:15 4.50 19:50 6.14 5.48 03:15 1.27 10:20 2.24 1.94 03:15 0.286 19:50 0.760 0.582 0.582 -
02/25/2021 03:50 4.65 17:55 6.15 5.53 02:45 1.13 18:45 2.27 1.79 03:50 0.267 19:10 0.753 0.542 0.542 0.18
02/26/2021 04:20 4.49 09:15 5.88 5.34 04:20 1.08 09:35 2.20 1.79 04:20 0.243 09:15 0.698 0.519 0.519 0.10
02/27/2021 04:35 4.49 11:45 6.01 5.38 05:45 0.98 11:40 2.31 1.74 05:45 0.220 11:40 0.772 0.514 0.514 0.02
02/28/2021 05:00 4.50 11:30 6.03 5.40 05:00 0.81 11:30 2.19 1.70 05:00 0.183 11:30 0.740 0.504 0.504 0.02
03/01/2021 03:50 4.19 20:10 6.06 5.27 03:50 0.83 20:10 1.96 1.55 03:50 0.170 20:10 0.667 0.443 0.443 -
03/02/2021 02:45 4.27 10:05 6.28 5.29 02:45 0.83 10:05 1.99 1.51 02:45 0.173 10:05 0.713 0.435 0.435 -
03/03/2021 04:00 4.15 18:45 5.88 5.24 04:00 0.69 21:20 1.89 1.45 04:00 0.139 19:10 0.613 0.411 0.411 -
03/04/2021 04:00 4.15 19:40 6.02 5.17 04:00 0.66 20:00 1.97 1.47 04:00 0.132 19:40 0.662 0.410 0.410 0.20
03/05/2021 03:50 4.12 19:55 5.82 5.17 03:50 0.73 18:55 1.86 1.47 03:50 0.145 20:25 0.580 0.412 0.412 0.05
03/06/2021 06:20 4.10 10:15 5.93 5.17 05:30 0.73 10:15 2.01 1.50 05:30 0.144 10:15 0.665 0.423 0.423 -
03/07/2021 06:00 3.98 10:50 5.88 5.16 04:40 0.67 11:35 2.01 1.50 04:40 0.127 11:35 0.654 0.424 0.424 0.04
03/08/2021 04:25 3.99 19:50 5.87 5.07 04:25 0.68 20:15 1.94 1.43 04:25 0.130 20:40 0.631 0.392 0.392 -
03/09/2021 04:10 3.97 19:45 5.70 5.03 04:10 0.65 09:00 1.96 1.43 04:10 0.122 09:00 0.605 0.385 0.385 0.01
03/10/2021 04:20 3.92 19:40 5.63 4.99 04:20 0.60 19:40 1.91 1.37 04:20 0.110 19:40 0.588 0.365 0.365 -
03/11/2021 04:10 3.96 19:35 5.57 4.95 04:10 0.63 21:30 1.98 1.41 04:10 0.119 21:30 0.589 0.372 0.372 -
Page 669 of 1163
149
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:20 3.73 20:00 5.55 4.85 04:20 0.59 19:05 1.96 1.44 04:20 0.101 20:00 0.591 0.370 0.370 -
03/13/2021 05:15 3.72 11:10 5.71 4.89 04:40 0.61 14:40 2.02 1.45 04:40 0.105 11:10 0.625 0.381 0.381 -
03/14/2021 04:40 3.85 13:00 6.03 5.22 04:40 0.59 20:00 1.99 1.38 04:40 0.106 19:35 0.643 0.399 0.399 0.30
03/15/2021 03:00 3.98 20:20 5.78 5.09 02:55 0.63 20:20 1.89 1.36 02:55 0.119 20:20 0.601 0.374 0.374 -
03/16/2021 03:05 4.04 20:10 5.94 5.15 03:05 0.62 20:30 2.18 1.37 03:05 0.120 20:30 0.683 0.381 0.381 -
03/17/2021 02:45 3.54 19:45 5.51 4.76 02:15 0.67 20:50 2.09 1.52 02:15 0.110 20:50 0.625 0.382 0.382 -
03/18/2021 03:05 3.80 15:50 5.44 4.83 03:05 0.65 19:05 2.16 1.49 03:05 0.116 19:05 0.634 0.380 0.380 0.11
03/19/2021 02:30 3.79 16:50 5.62 4.79 02:30 0.61 11:30 1.95 1.45 02:30 0.107 16:50 0.553 0.367 0.367 0.03
03/20/2021 03:55 3.84 11:30 5.43 4.86 04:25 0.53 10:35 2.27 1.52 04:25 0.096 10:45 0.648 0.394 0.394 0.17
03/21/2021 03:45 3.65 19:45 5.88 5.07 03:45 0.63 10:25 1.87 1.38 03:45 0.106 13:10 0.606 0.384 0.384 0.07
03/22/2021 03:00 4.00 20:05 6.08 5.22 03:55 0.58 20:05 1.82 1.30 03:55 0.112 20:05 0.621 0.371 0.371 0.11
03/23/2021 03:30 4.01 20:25 5.91 5.13 02:55 0.53 20:00 1.79 1.28 02:55 0.102 20:25 0.589 0.355 0.355 -
03/24/2021 02:25 3.99 20:40 6.05 5.15 02:25 0.54 20:40 1.84 1.29 02:25 0.102 20:40 0.625 0.362 0.362 0.34
03/25/2021 02:35 4.25 19:35 6.10 5.42 03:20 0.65 20:40 1.92 1.37 03:20 0.137 20:40 0.623 0.407 0.407 0.27
03/26/2021 02:25 4.10 18:45 5.96 5.28 02:25 0.74 11:30 1.84 1.40 02:25 0.146 11:30 0.591 0.402 0.402 -
03/27/2021 03:20 4.11 11:40 6.03 5.34 03:20 0.62 11:40 1.80 1.36 03:20 0.122 11:40 0.607 0.400 0.400 -
03/28/2021 04:25 3.98 13:05 6.34 5.26 04:25 0.58 13:30 2.27 1.52 04:25 0.109 13:30 0.753 0.440 0.440 0.37
03/29/2021 03:30 4.04 19:55 5.77 5.00 03:30 0.73 20:45 2.06 1.57 03:30 0.141 19:55 0.649 0.419 0.419 -
03/30/2021 03:35 3.86 20:20 5.87 5.02 03:35 0.67 07:50 1.99 1.45 03:35 0.121 20:20 0.637 0.391 0.391 -
03/31/2021 03:15 3.88 16:55 5.70 4.98 02:45 0.61 19:40 2.16 1.44 02:45 0.113 19:40 0.631 0.383 0.383 -
04/01/2021 03:25 3.73 21:15 5.37 4.81 02:50 0.67 14:55 1.99 1.49 03:25 0.116 21:15 0.568 0.377 0.377 -
04/02/2021 03:15 3.75 20:25 5.46 4.86 02:45 0.66 18:00 1.95 1.46 02:45 0.115 18:00 0.553 0.376 0.376 -
04/03/2021 03:55 3.89 09:35 5.78 5.03 03:00 0.63 10:10 2.03 1.41 03:55 0.116 10:10 0.634 0.385 0.385 -
04/04/2021 03:20 3.81 13:05 5.92 5.12 03:20 0.48 09:55 1.87 1.31 03:20 0.085 10:00 0.609 0.369 0.369 -
04/05/2021 03:55 3.82 21:45 5.60 5.01 03:55 0.51 20:50 1.69 1.25 03:55 0.090 20:50 0.511 0.336 0.336 -
04/06/2021 03:35 3.91 20:25 5.72 5.08 03:35 0.55 08:50 1.66 1.25 03:35 0.102 20:05 0.504 0.341 0.341 -
04/07/2021 02:35 3.93 20:00 5.64 5.01 02:35 0.55 18:10 1.74 1.23 02:35 0.102 18:10 0.534 0.330 0.330 0.22
04/08/2021 02:55 3.93 20:05 5.71 5.01 02:55 0.54 20:05 1.69 1.24 02:55 0.101 20:05 0.530 0.335 0.335 -
04/09/2021 03:10 3.81 11:05 5.50 4.98 03:45 0.51 18:00 1.69 1.25 03:45 0.091 18:00 0.501 0.333 0.333 0.03
04/10/2021 03:55 3.84 11:10 5.83 5.03 04:25 0.54 10:35 1.78 1.28 04:25 0.097 10:35 0.573 0.348 0.348 0.02
04/11/2021 03:15 3.76 09:45 5.84 5.13 04:20 0.49 13:40 1.73 1.29 04:20 0.087 09:45 0.557 0.364 0.364 -
04/12/2021 03:40 3.82 20:35 5.79 5.07 03:05 0.50 20:30 1.79 1.25 03:05 0.090 20:35 0.570 0.342 0.342 -
04/13/2021 03:10 3.79 19:00 5.74 5.01 03:10 0.54 18:30 1.73 1.23 03:10 0.095 19:25 0.542 0.332 0.332 -
04/14/2021 02:40 3.80 20:50 5.85 5.11 02:40 0.51 19:30 1.71 1.22 02:40 0.090 20:25 0.550 0.338 0.337 -
09/22/2020 04:00 3.51 20:00 5.79 4.98 03:55 0.35 20:55 1.56 1.12 04:00 0.055 20:55 0.498 0.304 0.304 -
09/23/2020 02:45 3.57 20:05 6.01 5.09 03:25 0.37 19:15 1.72 1.19 03:25 0.060 19:15 0.573 0.334 0.334 -
09/24/2020 03:00 3.69 20:15 5.94 5.15 03:00 0.41 18:55 1.64 1.16 03:00 0.070 18:55 0.537 0.328 0.328 -
09/25/2020 04:00 3.72 19:55 5.73 5.07 02:40 0.42 19:55 1.66 1.24 02:40 0.073 19:55 0.524 0.340 0.340 -
09/26/2020 04:05 3.86 10:05 5.93 5.13 04:05 0.51 10:05 1.71 1.24 04:35 0.092 10:05 0.566 0.349 0.349 -
09/27/2020 03:45 3.77 11:40 6.02 5.17 03:45 0.42 09:25 1.70 1.20 03:45 0.074 09:25 0.569 0.344 0.344 -
09/28/2020 03:05 3.76 20:10 5.82 5.07 03:05 0.41 20:10 1.60 1.14 03:05 0.071 20:10 0.514 0.314 0.314 -
09/29/2020 02:30 3.76 20:20 5.65 4.96 02:25 0.43 08:00 1.61 1.15 02:30 0.075 21:50 0.495 0.308 0.308 -
09/30/2020 03:00 3.62 20:15 5.71 4.96 03:00 0.39 11:30 1.60 1.16 03:00 0.064 11:30 0.493 0.311 0.311 -
10/01/2020 03:05 3.61 21:00 5.61 4.86 03:50 0.38 20:05 1.69 1.16 03:50 0.063 20:05 0.511 0.302 0.302 -
10/02/2020 02:50 3.44 08:45 5.56 4.92 02:50 0.40 20:00 1.52 1.14 02:50 0.061 20:00 0.458 0.302 0.302 -
10/03/2020 04:35 3.52 10:35 5.89 5.07 04:35 0.37 10:25 1.58 1.13 04:35 0.059 10:35 0.513 0.315 0.315 0.01
10/04/2020 04:45 3.49 11:50 5.92 5.14 04:45 0.37 14:20 1.59 1.15 04:45 0.058 14:20 0.521 0.330 0.330 0.01
10/05/2020 02:30 3.75 20:10 5.86 5.10 02:30 0.41 20:10 1.66 1.12 02:30 0.071 20:10 0.539 0.312 0.312 -
10/06/2020 02:20 3.69 20:00 6.32 5.28 02:20 0.42 19:15 1.39 1.01 02:20 0.071 20:25 0.489 0.296 0.296 -
10/07/2020 02:55 3.71 19:20 6.59 5.34 02:55 0.41 20:15 1.69 1.02 02:55 0.070 20:15 0.552 0.302 0.302 -
10/08/2020 02:55 3.53 20:00 5.72 4.95 02:55 0.38 21:15 1.63 1.12 02:55 0.061 21:15 0.511 0.301 0.301 -
10/09/2020 02:35 3.69 17:50 5.97 5.20 03:45 0.39 17:50 1.46 1.08 03:45 0.067 17:50 0.487 0.308 0.308 0.64
10/10/2020 04:40 4.46 10:50 6.18 5.51 04:40 0.66 10:50 1.91 1.38 04:40 0.147 10:50 0.668 0.421 0.421 1.04
10/11/2020 04:05 3.92 10:55 6.12 5.38 04:35 0.55 10:55 1.75 1.29 04:35 0.103 10:55 0.605 0.388 0.388 0.53
10/12/2020 03:15 4.00 19:05 6.14 5.32 02:45 0.58 19:05 1.66 1.24 02:45 0.111 19:05 0.576 0.364 0.364 -
10/13/2020 01:55 3.95 07:55 6.09 5.39 02:45 0.43 07:55 1.79 1.31 02:45 0.082 07:55 0.612 0.393 0.393 0.61
10/14/2020 03:10 4.00 19:20 6.02 5.28 02:40 0.58 18:55 1.66 1.25 03:10 0.110 18:55 0.561 0.361 0.361 -
10/15/2020 02:50 3.87 19:45 5.88 5.20 02:50 0.50 19:45 1.59 1.21 02:50 0.092 19:55 0.520 0.344 0.344 -
10/16/2020 03:40 3.91 19:30 6.45 5.52 02:05 0.50 08:15 1.33 1.06 02:05 0.093 19:35 0.462 0.327 0.327 -
10/17/2020 03:35 4.07 08:45 6.38 5.32 03:35 0.50 10:25 1.66 1.18 03:35 0.097 10:25 0.543 0.348 0.348 0.01
10/18/2020 04:50 3.75 11:10 5.97 5.17 04:10 0.44 13:00 1.73 1.22 04:10 0.079 11:10 0.571 0.351 0.351 0.03
10/19/2020 02:40 3.80 18:35 6.46 5.38 02:40 0.47 18:35 1.51 1.11 02:40 0.084 18:35 0.561 0.332 0.332 0.05
10/20/2020 03:10 3.79 16:50 6.59 5.23 03:10 0.45 18:20 1.94 1.16 03:10 0.080 18:20 0.558 0.330 0.330 -
10/21/2020 03:15 3.59 20:05 5.76 4.81 03:15 0.49 20:00 1.78 1.29 03:15 0.080 20:00 0.563 0.331 0.331 0.01
10/22/2020 03:40 3.60 20:00 5.82 4.91 02:30 0.47 20:00 1.69 1.22 03:40 0.077 20:00 0.546 0.323 0.323 -
10/23/2020 02:50 3.76 19:35 5.92 5.19 02:50 0.45 19:35 1.61 1.15 02:50 0.079 19:35 0.530 0.327 0.327 0.20
10/24/2020 04:35 3.88 11:15 6.06 5.28 04:35 0.45 10:00 1.69 1.19 04:35 0.082 10:00 0.568 0.351 0.351 0.02
10/25/2020 04:05 3.67 11:35 6.00 5.21 04:05 0.40 11:25 1.72 1.18 04:05 0.067 11:35 0.570 0.344 0.344 -
10/26/2020 04:15 3.88 18:35 5.84 5.11 02:25 0.42 18:35 1.67 1.18 02:25 0.078 18:35 0.539 0.329 0.329 -
10/27/2020 02:40 3.75 20:10 5.91 5.06 02:40 0.48 18:50 1.64 1.18 02:40 0.083 20:10 0.533 0.325 0.325 -
10/28/2020 02:45 3.73 20:05 5.85 5.09 02:45 0.43 20:05 1.59 1.18 02:45 0.074 20:05 0.514 0.328 0.328 -
10/29/2020 03:40 3.74 19:35 5.94 5.09 03:40 0.43 19:35 1.67 1.17 03:40 0.075 19:35 0.553 0.324 0.324 -
10/30/2020 03:15 3.77 13:45 8.61 5.16 03:15 0.46 13:35 1.93 1.21 03:15 0.081 13:35 0.803 0.343 0.343 0.10
10/31/2020 03:50 3.71 11:30 6.03 5.11 03:50 0.44 10:15 1.80 1.27 03:50 0.076 11:30 0.606 0.359 0.359 -
Page 670 of 1163
150
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 04:55 3.54 10:05 6.05 5.13 04:55 0.38 11:15 1.93 1.29 04:55 0.062 11:15 0.655 0.371 0.371 -
11/02/2020 03:45 3.55 19:45 5.83 5.05 03:45 0.39 19:00 1.71 1.27 03:45 0.063 20:10 0.541 0.351 0.351 -
11/03/2020 03:55 3.70 18:15 5.87 5.08 03:55 0.44 19:20 1.75 1.31 03:55 0.074 18:15 0.559 0.363 0.363 0.83
11/04/2020 03:35 3.91 21:10 5.71 5.05 03:35 0.56 21:10 1.70 1.32 03:35 0.103 21:10 0.533 0.359 0.359 0.09
11/05/2020 04:10 3.76 21:05 6.14 5.23 04:10 0.52 10:15 1.70 1.29 04:10 0.092 21:50 0.571 0.371 0.371 0.34
11/06/2020 04:10 4.36 20:50 6.26 5.60 04:05 0.61 09:45 1.64 1.27 04:05 0.131 09:45 0.581 0.398 0.398 0.10
11/07/2020 05:25 4.24 10:40 6.48 5.66 04:50 0.54 13:15 1.83 1.29 04:50 0.114 13:15 0.681 0.415 0.415 0.07
11/08/2020 05:45 3.95 11:00 6.71 5.84 05:45 0.47 10:55 1.65 1.24 05:45 0.089 10:55 0.637 0.419 0.419 0.01
11/09/2020 05:00 4.14 21:20 6.60 5.82 03:55 0.48 21:00 1.54 1.15 03:55 0.097 21:00 0.586 0.386 0.386 0.04
11/10/2020 04:20 3.92 18:10 6.89 5.70 03:20 0.46 20:15 1.76 1.15 03:20 0.086 20:15 0.602 0.370 0.370 0.03
11/11/2020 04:50 4.07 21:05 6.41 5.45 03:45 0.52 12:45 1.58 1.21 03:45 0.103 21:05 0.568 0.369 0.369 -
11/12/2020 03:20 3.99 09:45 6.39 5.65 03:20 0.44 22:00 1.44 1.08 03:20 0.084 22:00 0.520 0.345 0.345 0.16
11/13/2020 03:15 4.45 07:35 6.46 5.24 03:10 0.57 09:25 1.77 1.32 03:10 0.128 07:35 0.612 0.370 0.370 0.38
11/14/2020 06:50 4.00 10:30 5.99 5.27 06:20 0.60 11:55 1.78 1.35 06:50 0.115 11:55 0.595 0.395 0.395 0.47
11/15/2020 05:40 4.22 12:05 6.21 5.50 05:10 0.66 12:50 1.79 1.37 05:40 0.135 12:50 0.620 0.424 0.424 0.19
11/16/2020 03:50 4.30 20:00 6.11 5.46 03:50 0.61 19:45 1.69 1.28 03:50 0.128 19:45 0.575 0.389 0.389 0.31
11/17/2020 04:05 4.42 20:05 5.99 5.33 04:05 0.63 20:05 1.79 1.37 04:05 0.139 20:05 0.599 0.399 0.399 0.20
11/18/2020 04:10 4.23 19:30 6.06 5.39 04:10 0.69 19:30 1.77 1.38 04:10 0.141 19:30 0.602 0.409 0.409 0.30
11/19/2020 03:55 4.45 22:10 6.20 5.58 02:45 0.73 22:10 1.67 1.32 02:50 0.164 22:10 0.586 0.411 0.411 0.50
11/20/2020 03:40 4.55 18:50 6.10 5.59 03:20 0.75 18:50 1.60 1.31 03:20 0.174 18:50 0.551 0.406 0.406 0.01
11/21/2020 04:35 4.26 11:25 6.24 5.58 04:35 0.62 12:55 1.66 1.31 04:35 0.129 13:20 0.585 0.410 0.410 -
11/22/2020 06:00 4.21 13:25 6.26 5.60 04:15 0.61 14:05 1.75 1.34 06:00 0.125 12:45 0.618 0.426 0.426 0.21
11/23/2020 03:25 4.27 19:30 6.15 5.52 03:25 0.65 19:30 1.76 1.36 03:25 0.137 19:30 0.613 0.417 0.417 0.14
11/24/2020 04:05 4.26 19:40 6.40 5.59 02:40 0.69 21:30 1.57 1.28 04:05 0.143 21:30 0.574 0.401 0.401 0.21
11/25/2020 04:05 4.29 08:55 6.24 5.46 05:15 0.61 11:35 1.78 1.38 05:15 0.130 08:55 0.625 0.416 0.416 0.05
11/26/2020 05:25 4.19 12:35 6.68 5.60 03:25 0.65 12:25 1.89 1.40 05:25 0.132 12:30 0.726 0.446 0.446 0.02
11/27/2020 05:45 4.22 13:15 6.23 5.47 05:45 0.61 12:00 1.62 1.24 05:45 0.125 12:00 0.561 0.378 0.378 -
11/28/2020 04:15 4.21 13:55 6.34 5.54 04:15 0.61 13:55 1.67 1.26 04:15 0.125 13:55 0.606 0.392 0.392 0.05
11/29/2020 05:50 4.13 13:10 6.68 5.82 05:50 0.55 12:55 1.56 1.19 05:50 0.110 12:45 0.601 0.399 0.399 -
11/30/2020 03:25 4.42 08:25 6.35 5.51 03:25 0.59 09:05 1.93 1.29 03:25 0.130 09:05 0.658 0.391 0.391 0.36
12/01/2020 04:15 4.19 20:55 6.25 5.49 04:15 0.59 21:35 1.60 1.24 04:15 0.120 20:55 0.562 0.377 0.377 -
12/02/2020 03:50 4.17 21:25 6.20 5.51 03:50 0.56 21:20 1.57 1.21 03:50 0.113 21:25 0.552 0.369 0.369 0.01
12/03/2020 04:45 4.16 21:15 6.14 5.47 05:10 0.54 21:15 1.62 1.19 05:10 0.112 21:15 0.560 0.361 0.361 -
12/04/2020 04:25 4.10 20:05 6.54 5.50 04:25 0.54 20:35 1.89 1.19 04:25 0.106 13:00 0.555 0.360 0.360 -
12/05/2020 04:15 3.79 11:55 5.90 5.11 04:15 0.60 11:35 1.81 1.38 04:15 0.105 11:55 0.587 0.385 0.385 0.03
12/06/2020 05:55 3.95 14:05 6.07 5.34 05:55 0.54 11:35 1.76 1.30 05:55 0.100 12:25 0.596 0.387 0.387 0.03
12/07/2020 04:10 4.26 20:30 6.11 5.42 03:45 0.52 20:30 1.62 1.19 03:45 0.108 20:30 0.557 0.358 0.358 -
12/08/2020 04:35 4.30 09:10 6.39 5.30 03:10 0.52 20:05 1.99 1.41 03:10 0.110 20:30 0.671 0.410 0.410 0.87
12/09/2020 03:55 4.41 20:30 6.15 5.43 04:25 0.93 20:30 1.90 1.56 04:25 0.208 20:30 0.659 0.464 0.464 0.17
12/10/2020 03:40 4.46 18:30 6.13 5.47 04:40 0.84 20:45 1.77 1.45 04:40 0.189 20:45 0.609 0.438 0.438 0.07
12/11/2020 04:05 4.46 18:20 6.20 5.64 04:05 0.67 20:15 1.59 1.29 04:05 0.149 20:15 0.555 0.404 0.404 0.02
12/12/2020 04:35 4.52 11:00 6.63 5.75 04:35 0.59 10:25 1.66 1.28 04:35 0.134 11:00 0.635 0.418 0.418 0.01
12/13/2020 05:30 4.46 11:40 6.62 5.81 06:10 0.61 11:40 1.67 1.28 05:30 0.138 11:40 0.639 0.424 0.424 0.24
12/14/2020 03:55 4.52 13:40 6.70 5.90 03:30 0.62 11:00 1.66 1.27 03:30 0.142 11:05 0.646 0.429 0.429 0.05
12/15/2020 03:50 4.42 20:10 6.97 6.05 03:50 0.62 09:50 1.52 1.22 03:50 0.135 20:05 0.616 0.428 0.428 0.58
12/16/2020 23:55 4.89 20:35 7.28 6.24 04:00 0.71 21:20 2.36 1.29 04:00 0.187 21:05 0.755 0.457 0.457 0.39
12/17/2020 03:20 3.83 09:45 5.91 5.09 04:35 1.16 12:50 2.32 2.00 04:35 0.211 11:20 0.748 0.546 0.546 0.08
12/18/2020 04:05 3.86 13:20 6.02 5.19 04:25 1.03 09:00 2.14 1.76 04:05 0.190 13:20 0.700 0.493 0.493 0.25
12/19/2020 04:10 4.34 18:20 6.19 5.52 05:10 0.82 11:25 1.89 1.51 05:10 0.175 11:30 0.653 0.465 0.465 0.37
12/20/2020 06:05 4.69 11:10 6.42 5.72 04:50 0.87 21:00 1.88 1.52 04:50 0.210 11:10 0.673 0.489 0.489 0.04
12/21/2020 04:30 4.60 21:20 8.94 6.15 04:30 1.06 22:45 1.98 1.62 04:30 0.246 21:55 0.776 0.571 0.571 1.07
12/22/2020 04:15 5.19 12:05 6.74 6.03 04:15 1.29 12:45 2.05 1.76 04:15 0.356 12:45 0.775 0.601 0.601 -
12/23/2020 04:00 4.83 11:50 6.50 5.86 04:00 1.05 15:45 1.95 1.67 04:00 0.261 11:50 0.715 0.551 0.551 -
12/24/2020 05:05 4.73 13:10 8.31 6.05 05:05 0.90 11:20 1.95 1.55 05:05 0.218 11:40 0.809 0.537 0.537 -
12/25/2020 05:35 4.63 12:35 6.37 5.76 05:35 0.75 11:50 1.83 1.49 05:35 0.175 12:35 0.647 0.484 0.484 0.49
12/26/2020 05:35 4.73 11:55 6.45 5.77 05:55 0.81 13:25 1.88 1.46 05:55 0.197 13:25 0.696 0.474 0.474 0.02
12/27/2020 05:40 4.62 13:25 6.44 5.79 05:40 0.76 15:25 1.89 1.46 05:40 0.178 15:25 0.697 0.480 0.480 0.13
12/28/2020 03:35 4.75 12:05 6.44 5.78 03:15 0.79 12:00 1.84 1.45 03:15 0.193 12:05 0.679 0.472 0.472 -
12/29/2020 04:25 4.59 20:10 6.30 5.64 04:25 0.73 11:35 1.76 1.38 04:25 0.169 20:10 0.618 0.434 0.434 0.14
12/30/2020 03:55 4.67 12:55 6.55 5.93 03:55 0.75 12:55 1.84 1.52 03:55 0.178 12:55 0.697 0.513 0.513 0.78
12/31/2020 03:55 5.15 17:20 6.67 6.06 03:55 1.10 11:45 1.95 1.60 03:55 0.298 17:15 0.744 0.552 0.552 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 86.275 30.65
Average 5.58 1.36 0.421
Page 671 of 1163
151
Page 672 of 1163
152
AUB_Y-2_61102
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 3.10 9.02 1.095
Minimum 1.93 6.02 0.362
Maximum 5.82 11.70 2.995
Min Time 10/03/2020 3:00:00 AM 11/10/2020 4:00:00 AM 11/01/2020 4:00:00 AM
Max Time 01/03/2021 12:00:00 AM 01/12/2021 11:00:00 AM 01/03/2021 12:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 100
VFINAL (ft/s) 100
QFINAL (MGD - Total MG) 100
Pipe Elliptical (14.25 in H x 14.5 in W)
Silt 0.00 (in)
Page 673 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_Y-2_61102
Page 674 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_Y-2_61102
Page 675 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_Y-2_61102Pipe: Elliptical (14.25 in H x 14.5 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 04:30 2.68 18:10 4.76 3.53 04:30 7.91 11:15 11.29 9.61 04:30 0.751 18:10 2.369 1.380 1.380 0.51
01/02/2021 04:05 2.78 23:55 7.63 3.87 04:05 8.11 21:25 11.52 9.97 04:05 0.812 23:55 3.936 1.641 1.641 1.69
01/03/2021 05:15 4.15 00:10 8.06 4.71 00:10 9.89 01:00 11.42 10.83 05:15 1.826 00:10 4.199 2.280 2.280 0.65
01/04/2021 03:50 3.43 17:55 5.11 4.23 03:50 9.69 15:25 11.49 10.75 03:50 1.306 13:35 2.664 1.955 1.955 0.48
01/05/2021 05:05 3.09 13:20 4.59 3.86 05:05 9.30 23:30 11.81 10.74 05:05 1.081 13:20 2.375 1.723 1.723 0.52
01/06/2021 02:05 3.50 19:45 4.61 3.95 02:35 10.10 18:00 11.93 11.10 03:20 1.428 18:00 2.422 1.835 1.835 0.22
01/07/2021 04:20 2.69 20:30 4.53 3.63 04:20 9.31 18:50 11.67 10.68 04:20 0.890 20:30 2.316 1.577 1.577 -
01/08/2021 02:05 2.58 18:15 4.34 3.45 02:05 8.98 14:40 11.64 10.49 02:05 0.810 18:15 2.152 1.444 1.444 0.22
01/09/2021 04:40 2.47 11:55 4.41 3.43 02:25 8.66 11:35 11.70 10.33 04:40 0.756 10:20 2.233 1.421 1.421 -
01/10/2021 04:35 2.42 12:20 4.47 3.32 05:40 8.58 15:35 11.51 10.10 05:40 0.707 12:20 2.248 1.329 1.329 0.07
01/11/2021 03:10 2.30 21:40 4.84 3.51 03:55 8.15 11:15 11.58 10.20 03:10 0.637 20:50 2.474 1.468 1.468 1.06
01/12/2021 02:15 3.51 19:45 6.03 4.71 01:10 10.26 09:05 12.03 11.28 02:15 1.441 19:45 3.461 2.392 2.392 2.10
01/13/2021 23:55 3.99 00:55 5.22 4.54 13:45 10.74 01:20 11.89 11.19 23:55 1.798 00:55 2.781 2.239 2.239 0.09
01/14/2021 03:55 3.15 00:15 4.73 3.92 03:40 9.62 18:45 11.95 10.93 03:55 1.169 00:15 2.395 1.791 1.791 0.01
01/15/2021 03:15 2.91 13:35 4.36 3.60 03:15 9.26 16:10 12.12 10.70 03:15 0.990 13:35 2.277 1.559 1.559 0.09
01/16/2021 04:10 2.48 12:05 4.80 3.48 05:45 8.63 10:00 11.97 10.37 04:10 0.760 12:05 2.578 1.456 1.456 -
01/17/2021 05:50 2.44 11:05 4.47 3.35 04:45 8.58 11:05 11.61 10.11 05:50 0.724 11:05 2.271 1.348 1.348 0.10
01/18/2021 04:40 2.22 12:40 4.42 3.29 04:40 8.10 11:15 11.54 9.89 04:40 0.587 12:40 2.199 1.287 1.287 -
01/19/2021 04:05 2.39 23:00 4.41 3.24 04:45 7.81 20:50 11.11 9.68 04:05 0.640 23:00 2.110 1.227 1.227 0.01
01/20/2021 03:20 2.34 15:55 4.31 3.14 02:55 7.34 17:20 11.49 9.49 03:20 0.604 17:20 2.136 1.148 1.148 -
01/21/2021 02:35 2.36 20:35 4.71 3.14 03:30 7.64 16:50 11.14 9.38 02:30 0.610 20:35 2.308 1.138 1.138 0.11
01/22/2021 03:40 2.28 18:45 4.30 3.07 03:30 7.27 12:15 10.96 9.21 03:40 0.554 18:45 1.956 1.082 1.082 -
01/23/2021 05:15 2.26 14:20 4.22 3.09 06:00 7.16 09:55 10.95 9.09 05:15 0.544 22:25 1.871 1.087 1.087 -
01/24/2021 04:10 2.13 20:20 4.33 3.17 04:10 6.35 10:20 10.94 9.17 04:10 0.432 10:20 2.017 1.144 1.144 0.16
01/25/2021 02:45 2.27 14:15 4.41 3.07 02:05 7.02 15:40 10.82 9.17 02:05 0.528 20:55 1.999 1.080 1.080 0.04
01/26/2021 04:25 2.23 20:55 4.48 3.05 04:25 7.13 20:55 10.83 9.05 04:25 0.520 20:55 2.125 1.054 1.054 -
01/27/2021 04:10 2.30 16:45 4.59 3.05 03:00 6.91 16:45 10.61 8.92 04:10 0.537 16:45 2.152 1.039 1.039 0.14
01/28/2021 04:50 2.34 13:40 4.58 3.15 04:50 6.96 12:20 10.47 8.76 04:50 0.545 13:40 2.092 1.067 1.067 0.24
01/29/2021 03:45 2.34 11:05 4.41 3.16 04:25 6.57 09:05 10.26 8.61 03:45 0.543 11:05 1.905 1.049 1.049 0.03
01/30/2021 05:05 2.43 12:45 4.44 3.18 05:05 6.92 08:40 9.85 8.61 05:05 0.569 12:45 1.892 1.067 1.067 0.07
01/31/2021 04:20 2.26 21:35 4.79 3.21 06:50 6.37 15:05 10.63 8.71 03:15 0.515 15:05 2.259 1.099 1.099 0.12
02/01/2021 03:45 2.46 21:05 5.04 3.34 03:50 7.06 18:20 10.61 8.99 03:50 0.593 21:05 2.388 1.200 1.200 0.82
02/02/2021 03:35 2.90 19:35 4.77 3.61 04:10 8.10 20:50 10.64 9.49 04:50 0.860 20:50 2.269 1.395 1.395 0.31
02/03/2021 05:10 2.76 10:40 4.47 3.46 04:05 8.22 17:15 10.90 9.53 05:10 0.836 17:40 2.059 1.317 1.317 0.06
02/04/2021 02:00 2.64 19:05 4.42 3.28 05:15 7.90 19:05 11.03 9.37 05:15 0.747 19:05 2.121 1.205 1.205 0.07
02/05/2021 01:10 2.48 15:25 4.30 3.19 03:00 7.60 15:25 10.74 9.29 04:00 0.673 15:25 1.987 1.148 1.148 0.01
02/06/2021 05:00 2.18 12:55 4.77 3.25 05:20 7.33 11:05 10.91 9.30 05:00 0.518 12:55 2.256 1.195 1.195 0.01
02/07/2021 05:50 2.32 11:20 4.53 3.19 05:50 7.27 20:35 10.62 9.20 05:50 0.562 11:20 2.081 1.149 1.149 -
02/08/2021 02:30 2.14 21:20 4.51 3.11 04:05 7.19 15:05 11.10 9.22 02:30 0.509 21:20 2.153 1.107 1.107 -
02/09/2021 03:25 2.31 11:25 4.51 3.03 04:05 7.15 22:00 10.94 9.12 03:25 0.551 11:25 2.046 1.054 1.054 -
02/10/2021 04:05 2.27 15:25 4.36 2.99 04:45 7.02 16:40 10.82 9.01 04:45 0.530 15:25 2.033 1.020 1.020 -
02/11/2021 03:30 2.28 15:55 4.42 2.99 03:30 6.97 15:55 10.86 8.93 03:30 0.525 15:55 2.089 1.010 1.010 -
02/12/2021 04:20 2.21 19:35 4.41 2.99 04:20 6.88 17:55 10.81 8.90 04:20 0.496 19:35 1.989 1.010 1.010 -
02/13/2021 05:55 2.21 12:05 4.22 2.99 05:55 6.44 14:55 10.92 8.89 05:55 0.464 12:05 1.899 1.013 1.013 0.08
02/14/2021 03:35 2.19 14:00 4.74 3.14 03:35 6.73 15:55 10.71 8.94 03:35 0.478 14:00 2.234 1.102 1.102 0.71
02/15/2021 04:00 2.69 13:15 5.08 3.80 04:15 8.07 13:15 11.27 9.90 04:00 0.773 13:15 2.626 1.594 1.594 0.78
02/16/2021 05:10 3.20 14:45 4.88 3.85 03:00 9.13 19:45 11.15 10.17 04:05 1.127 14:45 2.392 1.624 1.624 0.07
02/17/2021 04:20 2.79 20:05 4.69 3.46 03:35 8.67 15:20 11.31 9.95 04:20 0.875 20:05 2.331 1.377 1.377 -
02/18/2021 03:35 2.52 14:10 4.50 3.26 04:15 8.14 20:20 11.44 9.87 04:15 0.724 14:10 2.248 1.258 1.258 0.09
02/19/2021 04:10 2.35 19:20 4.42 3.18 03:45 8.21 20:15 11.41 9.84 04:10 0.649 19:20 2.175 1.213 1.213 0.17
02/20/2021 06:05 2.34 13:10 4.53 3.16 06:05 7.96 19:20 11.47 9.75 06:05 0.623 13:10 2.213 1.200 1.200 0.07
02/21/2021 05:10 2.29 19:25 4.48 3.21 04:10 7.80 09:20 11.33 9.72 05:10 0.599 17:15 2.139 1.229 1.229 0.42
02/22/2021 04:25 2.71 14:00 5.07 3.85 03:25 8.85 12:45 11.56 10.40 03:55 0.864 20:35 2.594 1.685 1.685 0.98
02/23/2021 03:15 2.98 13:10 4.70 3.72 03:10 9.20 22:05 11.45 10.30 03:15 1.016 13:10 2.381 1.576 1.576 0.27
02/24/2021 03:30 2.76 19:35 4.63 3.55 03:20 8.97 17:00 11.58 10.38 03:35 0.913 19:35 2.337 1.485 1.485 -
02/25/2021 02:50 2.51 18:00 4.44 3.43 02:00 8.65 15:55 11.69 10.38 02:50 0.758 18:00 2.263 1.416 1.416 0.18
02/26/2021 04:20 2.44 08:55 4.45 3.27 03:45 8.63 19:00 11.70 10.21 03:45 0.724 08:55 2.266 1.304 1.304 0.10
02/27/2021 04:10 2.39 11:20 4.58 3.26 05:30 8.49 11:20 11.73 10.06 04:10 0.693 11:20 2.370 1.290 1.290 0.02
02/28/2021 05:20 2.33 12:05 4.61 3.23 05:00 8.05 12:05 11.61 9.86 05:00 0.628 12:05 2.371 1.253 1.253 0.02
03/01/2021 04:20 2.33 18:50 4.40 3.12 04:20 7.82 21:20 11.49 9.67 04:20 0.609 18:50 2.163 1.165 1.165 -
03/02/2021 03:05 2.29 12:45 4.26 3.07 03:45 7.48 12:45 11.44 9.50 03:05 0.576 12:45 2.093 1.115 1.115 -
03/03/2021 04:05 2.23 15:55 4.26 3.10 04:00 7.38 21:15 11.27 9.41 04:00 0.541 15:55 1.963 1.121 1.121 -
03/04/2021 04:00 2.31 16:50 4.54 3.02 03:15 7.18 19:05 11.08 9.20 02:50 0.556 16:50 2.166 1.055 1.055 0.20
03/05/2021 03:45 2.35 22:05 4.34 3.08 03:25 7.35 22:05 11.15 9.19 03:45 0.577 22:05 2.090 1.085 1.085 0.05
03/06/2021 03:50 2.35 21:05 4.55 3.11 05:05 7.22 08:30 10.93 9.06 05:05 0.567 21:05 2.184 1.089 1.089 -
03/07/2021 05:30 2.22 14:30 4.48 3.15 05:30 6.86 14:30 10.79 8.99 05:30 0.496 14:30 2.115 1.108 1.108 0.04
03/08/2021 04:10 2.33 20:25 4.68 3.08 04:25 7.03 20:25 10.82 8.93 04:25 0.547 20:25 2.251 1.054 1.054 -
03/09/2021 03:45 2.27 21:25 4.49 3.05 02:10 6.65 13:25 10.62 8.83 03:00 0.520 19:20 2.058 1.028 1.028 0.01
03/10/2021 02:55 2.25 19:40 4.42 3.05 04:25 6.84 17:15 10.59 8.66 04:25 0.505 19:40 1.931 1.010 1.010 -
03/11/2021 04:15 2.15 14:15 4.36 3.04 03:20 6.63 18:20 10.27 8.50 04:15 0.478 14:15 1.937 0.987 0.987 -
Page 676 of 1163
156
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 05:15 2.28 20:30 4.07 3.05 03:50 6.74 08:40 10.25 8.42 05:15 0.514 20:30 1.622 0.975 0.975 -
03/13/2021 05:15 2.21 12:05 4.68 3.11 04:10 6.31 21:05 10.25 8.44 05:15 0.468 12:05 2.114 1.017 1.017 -
03/14/2021 04:10 2.20 20:15 4.82 3.15 04:10 6.39 15:30 10.27 8.49 04:10 0.455 20:15 2.207 1.044 1.044 0.30
03/15/2021 03:00 2.35 16:30 4.45 3.10 03:20 6.77 15:35 10.39 8.55 03:00 0.538 16:30 1.969 1.017 1.017 -
03/16/2021 01:50 2.27 20:15 4.64 3.03 03:10 6.68 17:20 10.75 8.62 03:10 0.502 20:15 2.134 0.998 0.998 -
03/17/2021 03:15 2.22 21:10 4.56 2.99 02:40 6.77 21:25 10.39 8.60 03:15 0.491 21:10 2.036 0.975 0.975 -
03/18/2021 02:15 2.20 18:40 4.46 2.94 03:10 6.70 09:00 10.41 8.62 03:10 0.484 19:20 2.008 0.952 0.952 0.11
03/19/2021 03:25 2.16 10:05 4.43 2.90 03:25 6.47 10:05 10.62 8.63 03:25 0.450 10:05 2.052 0.937 0.937 0.03
03/20/2021 03:05 2.11 19:05 4.52 2.99 03:00 6.76 20:40 10.86 8.78 03:00 0.458 19:05 2.029 1.004 1.004 0.17
03/21/2021 04:20 2.13 19:45 4.62 2.98 03:50 6.65 15:50 10.76 8.83 03:50 0.455 19:45 2.187 1.009 1.009 0.07
03/22/2021 02:30 2.22 20:50 4.44 2.98 03:50 6.76 18:35 11.03 8.94 03:50 0.497 20:50 2.066 1.016 1.016 0.11
03/23/2021 02:25 2.22 19:00 4.47 2.90 02:50 6.77 15:10 11.09 8.87 02:50 0.491 19:00 2.066 0.966 0.966 -
03/24/2021 02:20 2.13 18:55 4.40 2.90 01:35 6.69 18:55 10.71 8.83 02:20 0.461 18:55 2.047 0.961 0.961 0.34
03/25/2021 03:45 2.37 18:10 4.31 3.13 03:45 7.37 13:50 11.08 9.30 03:45 0.586 18:10 2.024 1.124 1.124 0.27
03/26/2021 03:10 2.34 08:30 4.34 2.98 02:50 6.96 08:30 10.75 9.04 02:50 0.548 08:30 2.017 1.014 1.014 -
03/27/2021 04:15 2.13 10:05 4.65 2.98 04:15 6.78 10:05 10.93 9.04 04:15 0.462 10:05 2.257 1.028 1.028 -
03/28/2021 03:55 2.11 18:55 4.59 3.07 02:35 6.70 14:35 10.71 9.00 03:55 0.469 14:35 2.145 1.070 1.070 0.37
03/29/2021 03:05 2.32 19:20 4.36 3.03 03:25 6.90 10:05 10.88 8.88 03:05 0.540 10:05 2.027 1.027 1.027 -
03/30/2021 02:20 2.26 19:40 4.38 2.95 01:25 6.26 21:15 10.89 8.81 01:25 0.476 19:40 2.014 0.982 0.982 -
03/31/2021 02:40 2.17 18:20 4.25 2.92 02:40 6.60 19:50 10.88 8.74 02:40 0.463 19:50 1.944 0.960 0.960 -
04/01/2021 02:55 2.11 17:50 4.20 2.91 02:55 6.71 08:00 10.73 8.74 02:55 0.452 12:05 1.880 0.953 0.953 -
04/02/2021 03:15 2.15 09:20 4.47 2.93 03:15 6.63 06:55 10.77 8.78 03:15 0.459 21:35 2.053 0.967 0.967 -
04/03/2021 04:00 2.13 16:50 4.33 2.95 05:30 6.54 15:05 10.69 8.68 04:25 0.450 16:50 1.930 0.971 0.971 -
04/04/2021 03:50 2.14 13:10 4.36 2.94 05:20 6.63 08:30 10.89 8.66 05:20 0.459 22:40 1.928 0.969 0.969 -
04/05/2021 03:05 2.03 09:25 4.33 2.84 02:40 6.62 18:35 10.75 8.60 03:05 0.423 09:25 1.991 0.906 0.906 -
04/06/2021 02:55 2.12 16:30 4.09 2.81 01:40 6.55 09:00 10.59 8.55 02:55 0.453 09:00 1.778 0.887 0.887 -
04/07/2021 03:10 2.07 19:45 4.27 2.80 03:10 6.46 19:45 10.66 8.55 03:10 0.423 19:45 1.957 0.885 0.885 0.22
04/08/2021 02:50 2.10 10:25 4.34 2.86 03:55 6.63 06:45 10.71 8.57 02:50 0.446 10:25 2.010 0.915 0.915 -
04/09/2021 03:45 2.10 19:45 4.16 2.83 03:10 6.46 18:25 10.48 8.39 03:45 0.436 19:45 1.836 0.881 0.881 0.03
04/10/2021 03:50 2.10 16:45 4.36 2.97 03:50 6.35 13:35 10.30 8.44 03:50 0.424 16:45 1.941 0.956 0.956 0.02
04/11/2021 06:00 1.95 12:40 4.51 2.98 03:20 6.10 12:05 10.62 8.44 06:00 0.400 12:05 2.053 0.966 0.966 -
04/12/2021 00:50 2.00 19:50 4.66 2.94 03:00 6.08 20:15 10.61 8.41 00:50 0.403 19:50 2.126 0.941 0.941 -
04/13/2021 04:30 2.06 18:55 4.50 2.89 03:10 5.96 06:30 10.40 8.31 03:10 0.391 18:55 2.040 0.901 0.901 -
04/14/2021 03:15 2.09 21:00 4.75 2.90 02:35 6.01 18:10 10.37 8.17 03:45 0.400 21:00 2.111 0.893 0.890 -
09/22/2020 02:20 1.87 17:15 4.11 2.70 02:10 5.73 17:15 10.65 8.13 02:20 0.328 17:15 1.850 0.802 0.802 -
09/23/2020 03:20 1.83 18:35 4.48 2.83 03:15 5.65 18:50 11.05 8.42 03:20 0.308 18:50 2.153 0.899 0.899 -
09/24/2020 03:05 2.03 08:40 4.08 2.82 03:05 6.28 16:10 10.84 8.47 03:05 0.399 08:40 1.821 0.884 0.884 -
09/25/2020 03:10 1.99 13:50 4.32 2.83 02:30 5.96 13:50 10.73 8.54 02:30 0.370 13:50 2.001 0.905 0.905 -
09/26/2020 05:30 1.95 13:45 4.23 2.83 05:30 5.80 13:45 10.90 8.56 05:30 0.349 13:45 1.974 0.909 0.909 -
09/27/2020 04:20 1.94 12:10 4.25 2.84 04:20 5.88 19:45 11.11 8.55 04:20 0.349 19:30 1.968 0.918 0.918 -
09/28/2020 03:00 1.93 09:35 4.12 2.74 03:00 5.90 17:50 10.64 8.42 03:00 0.348 09:35 1.846 0.852 0.852 -
09/29/2020 02:30 1.93 08:05 4.06 2.70 03:35 6.05 16:25 10.47 8.31 02:30 0.360 08:05 1.777 0.819 0.819 -
09/30/2020 03:00 1.90 15:10 3.96 2.72 02:20 6.01 13:30 10.81 8.37 02:50 0.350 21:30 1.682 0.834 0.834 -
10/01/2020 03:35 1.86 19:00 4.29 2.67 03:35 5.63 16:45 10.87 8.33 03:35 0.315 19:00 1.989 0.812 0.812 -
10/02/2020 02:50 1.83 11:15 3.86 2.65 02:30 5.42 15:50 10.75 8.35 02:30 0.311 15:50 1.706 0.801 0.801 -
10/03/2020 02:35 1.80 12:45 4.08 2.67 03:45 5.75 10:45 11.22 8.36 02:35 0.310 12:45 1.890 0.821 0.821 0.01
10/04/2020 03:30 1.87 12:30 4.43 2.72 05:25 5.81 13:15 11.01 8.46 03:30 0.330 12:30 2.115 0.854 0.854 0.01
10/05/2020 02:25 1.89 08:35 4.19 2.72 03:05 6.05 19:25 11.09 8.42 02:25 0.349 16:50 1.931 0.843 0.843 -
10/06/2020 02:55 1.87 18:55 4.08 2.69 02:15 5.81 18:55 11.15 8.32 02:55 0.329 18:55 1.918 0.820 0.820 -
10/07/2020 02:55 1.91 17:05 4.18 2.69 02:55 5.89 17:05 10.99 8.27 02:55 0.344 17:05 1.960 0.815 0.815 -
10/08/2020 03:35 1.77 18:40 4.20 2.69 02:50 5.79 11:30 10.69 8.27 03:35 0.317 18:40 1.900 0.814 0.814 -
10/09/2020 02:25 1.87 09:30 3.98 2.67 02:25 6.07 19:10 10.85 8.25 02:25 0.343 21:00 1.749 0.800 0.800 0.64
10/10/2020 01:05 2.55 14:30 4.46 3.18 03:50 7.79 18:05 11.37 9.49 01:05 0.699 14:30 2.183 1.172 1.172 1.04
10/11/2020 05:50 2.02 16:40 4.26 2.93 05:50 6.14 11:25 11.50 9.09 05:50 0.388 16:40 2.027 1.021 1.021 0.53
10/12/2020 02:40 2.18 21:10 4.23 2.85 05:30 6.99 11:20 11.26 8.97 02:40 0.506 21:10 2.017 0.951 0.951 -
10/13/2020 02:45 2.06 18:55 4.34 2.95 02:00 6.25 18:55 11.08 8.89 02:00 0.409 18:55 2.082 0.994 0.994 0.61
10/14/2020 03:05 2.14 19:45 4.19 2.88 03:05 6.67 19:45 10.74 8.48 03:05 0.459 19:45 1.917 0.910 0.910 -
10/15/2020 02:50 1.85 19:20 4.40 2.88 03:35 5.44 09:10 10.51 8.29 02:50 0.329 19:20 1.993 0.895 0.895 -
10/16/2020 03:00 2.09 12:25 4.28 2.85 01:45 5.96 12:25 10.50 8.21 01:45 0.406 12:25 1.930 0.873 0.873 -
10/17/2020 04:00 2.01 16:05 4.17 2.86 04:00 5.98 16:55 10.39 8.28 04:00 0.375 20:50 1.816 0.893 0.893 0.01
10/18/2020 04:10 2.00 14:55 4.39 2.91 04:10 5.87 13:10 10.70 8.37 04:10 0.365 14:55 2.030 0.926 0.926 0.03
10/19/2020 03:15 2.05 15:25 4.44 2.85 05:00 5.96 19:15 10.75 8.35 03:05 0.412 15:25 2.047 0.892 0.892 0.05
10/20/2020 03:10 1.99 20:05 4.15 2.80 03:10 6.20 12:20 10.35 8.29 03:10 0.383 20:05 1.810 0.857 0.857 -
10/21/2020 02:55 1.92 19:00 4.10 2.76 03:00 5.92 19:55 10.73 8.29 03:00 0.349 09:20 1.793 0.846 0.846 0.01
10/22/2020 02:30 1.98 15:15 4.31 2.71 03:40 6.11 20:50 10.70 8.35 03:40 0.376 15:15 1.982 0.829 0.829 -
10/23/2020 02:50 1.90 17:55 4.21 2.71 01:15 5.92 19:45 10.91 8.40 01:15 0.349 17:55 1.897 0.833 0.833 0.20
10/24/2020 03:00 1.98 11:55 4.29 2.77 03:55 6.39 11:55 10.73 8.59 03:00 0.397 11:55 1.985 0.885 0.885 0.02
10/25/2020 05:10 1.84 09:05 4.31 2.78 05:10 5.71 13:50 10.92 8.53 05:10 0.316 09:05 2.023 0.890 0.890 -
10/26/2020 03:00 1.96 18:50 4.21 2.75 02:15 6.22 18:50 10.77 8.44 02:55 0.379 18:50 1.935 0.858 0.858 -
10/27/2020 02:45 1.94 19:45 4.12 2.76 01:40 5.85 19:45 10.82 8.37 02:45 0.353 19:45 1.890 0.855 0.855 -
10/28/2020 02:45 1.87 12:10 4.05 2.78 02:40 5.44 17:50 10.82 8.24 02:45 0.318 17:50 1.757 0.849 0.849 -
10/29/2020 01:45 1.85 18:55 4.35 2.80 02:55 5.75 18:55 10.29 8.03 02:30 0.347 18:55 1.939 0.832 0.832 -
10/30/2020 03:20 1.92 18:50 4.05 2.82 03:20 5.67 18:50 10.23 8.03 03:20 0.333 18:50 1.742 0.846 0.846 0.10
10/31/2020 04:20 1.97 11:45 4.38 2.81 03:40 5.66 12:55 10.50 8.14 03:40 0.353 11:45 1.984 0.860 0.860 -
Page 677 of 1163
157
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 04:55 1.81 12:20 4.64 2.77 04:55 5.52 11:05 10.87 8.28 04:55 0.297 12:20 2.236 0.862 0.862 -
11/02/2020 03:50 1.94 20:55 4.24 2.69 02:30 6.14 20:55 11.10 8.32 03:50 0.368 20:55 2.014 0.817 0.817 -
11/03/2020 04:00 1.82 18:50 4.27 2.81 04:00 5.55 18:50 11.15 8.56 04:00 0.301 18:50 2.044 0.904 0.904 0.83
11/04/2020 04:40 2.13 23:05 4.25 2.83 03:25 6.83 12:10 10.82 8.61 04:40 0.475 09:55 1.935 0.898 0.898 0.09
11/05/2020 04:10 2.09 18:10 4.32 2.87 03:35 6.22 16:15 10.35 8.29 04:10 0.418 18:10 1.895 0.892 0.892 0.34
11/06/2020 03:00 2.12 17:35 4.19 2.86 03:00 6.07 11:15 10.23 8.34 03:00 0.412 17:35 1.800 0.885 0.885 0.10
11/07/2020 04:05 2.12 14:10 4.31 2.86 05:20 6.10 15:10 10.40 8.23 05:25 0.413 15:10 1.887 0.886 0.886 0.07
11/08/2020 05:50 2.04 20:35 4.31 2.91 05:05 5.67 20:35 10.04 8.07 05:05 0.369 20:35 1.865 0.890 0.890 0.01
11/09/2020 03:25 2.00 16:05 4.03 2.92 04:45 5.52 18:35 9.70 7.76 04:45 0.351 16:05 1.624 0.855 0.855 0.04
11/10/2020 04:25 2.08 13:35 3.79 2.92 04:20 5.10 13:35 9.38 7.61 04:25 0.342 13:35 1.454 0.835 0.835 0.03
11/11/2020 04:25 2.05 22:00 4.31 2.87 03:45 5.63 18:30 9.77 7.74 03:45 0.367 18:30 1.798 0.833 0.833 -
11/12/2020 03:25 2.05 18:20 4.12 2.80 03:20 5.69 21:50 10.11 7.93 03:25 0.367 18:20 1.653 0.823 0.823 0.16
11/13/2020 03:15 2.20 14:00 4.19 2.92 03:15 6.49 14:00 10.45 8.46 03:15 0.465 14:00 1.869 0.925 0.925 0.38
11/14/2020 05:05 2.05 18:55 4.41 2.94 05:05 6.25 18:55 10.79 8.58 05:05 0.404 18:55 2.067 0.963 0.963 0.47
11/15/2020 05:40 2.23 15:50 4.49 3.01 05:40 6.93 15:50 10.93 8.85 05:40 0.505 15:50 2.149 1.022 1.022 0.19
11/16/2020 03:25 2.17 20:45 4.46 3.03 04:35 6.67 20:45 10.71 8.85 04:35 0.479 20:45 2.085 1.028 1.028 0.31
11/17/2020 04:05 2.21 17:25 4.33 2.98 03:10 7.03 20:45 10.75 8.85 04:05 0.515 17:25 1.970 1.001 1.001 0.20
11/18/2020 03:05 2.25 20:00 4.29 3.00 02:15 6.42 14:40 10.84 8.88 02:15 0.489 14:40 1.949 1.013 1.013 0.30
11/19/2020 03:10 2.29 15:35 4.40 3.10 03:30 6.92 10:25 10.71 9.04 03:30 0.530 15:35 2.050 1.078 1.078 0.50
11/20/2020 04:25 2.36 20:40 4.48 3.04 04:25 6.99 10:55 10.74 8.88 04:25 0.553 20:40 2.053 1.026 1.026 0.01
11/21/2020 05:00 2.29 11:15 4.31 3.06 03:50 6.83 18:05 10.93 8.94 03:50 0.525 11:15 1.995 1.054 1.054 -
11/22/2020 05:10 2.21 11:50 4.53 3.06 04:15 6.84 14:10 11.07 8.92 06:05 0.500 11:50 2.135 1.058 1.058 0.21
11/23/2020 03:30 2.36 20:15 4.66 3.13 03:00 7.00 19:20 10.90 8.87 03:00 0.565 20:15 2.236 1.071 1.071 0.14
11/24/2020 03:25 2.35 18:45 4.66 3.15 03:25 6.74 18:05 10.91 8.61 03:25 0.528 18:45 2.178 1.050 1.050 0.21
11/25/2020 05:10 2.35 18:45 4.56 3.10 05:10 6.09 20:45 10.73 8.69 05:10 0.478 18:45 2.071 1.034 1.034 0.05
11/26/2020 04:35 2.28 10:45 4.62 3.14 04:15 6.73 14:25 10.83 8.92 03:30 0.512 12:20 2.177 1.103 1.103 0.02
11/27/2020 04:05 2.19 17:50 4.19 2.89 04:05 6.54 11:00 10.94 8.75 04:05 0.464 11:00 1.888 0.947 0.947 -
11/28/2020 05:00 2.09 12:50 4.48 2.93 05:20 6.32 23:00 10.97 8.73 05:00 0.430 12:50 2.048 0.974 0.974 0.05
11/29/2020 05:55 2.09 16:20 4.33 2.96 05:55 6.75 16:20 11.30 9.06 05:55 0.447 16:20 2.115 1.027 1.027 -
11/30/2020 03:20 2.12 20:00 4.30 3.02 03:05 6.61 20:30 11.75 9.26 03:05 0.449 20:00 2.088 1.073 1.073 0.36
12/01/2020 03:50 2.16 20:15 4.25 2.92 05:00 7.10 18:50 11.58 9.18 03:50 0.499 20:15 2.037 1.012 1.012 -
12/02/2020 03:05 2.10 17:45 4.31 2.93 04:20 6.87 11:30 11.12 8.86 03:05 0.461 17:45 2.022 0.979 0.979 0.01
12/03/2020 04:50 2.26 17:55 4.26 3.04 04:50 6.57 14:40 10.54 8.29 04:50 0.488 17:55 1.852 0.960 0.960 -
12/04/2020 03:55 2.33 19:25 4.37 3.20 03:25 5.96 10:20 9.63 7.78 03:25 0.483 08:25 1.818 0.972 0.972 -
12/05/2020 04:50 2.35 13:35 4.65 3.26 04:50 5.85 12:50 9.57 7.77 04:50 0.461 13:35 1.954 1.003 1.003 0.03
12/06/2020 04:30 2.17 13:20 4.53 3.16 06:00 5.66 13:20 9.97 7.88 04:30 0.401 13:20 1.988 0.978 0.978 0.03
12/07/2020 04:15 2.19 20:30 4.35 3.02 04:15 6.05 20:30 10.52 8.16 04:15 0.428 20:30 1.982 0.937 0.937 -
12/08/2020 03:40 2.18 18:10 4.54 3.07 03:40 6.28 21:50 10.74 8.57 03:40 0.443 18:10 2.117 1.020 1.020 0.87
12/09/2020 02:55 2.73 21:15 4.47 3.22 02:55 8.03 09:55 10.95 9.40 02:55 0.784 21:15 2.111 1.170 1.170 0.17
12/10/2020 04:05 2.35 14:25 4.29 3.01 05:35 7.06 20:45 11.53 9.15 05:35 0.577 14:25 2.052 1.042 1.042 0.07
12/11/2020 04:10 2.26 17:35 4.19 2.99 04:10 7.22 19:50 11.37 9.22 04:10 0.535 17:35 1.993 1.043 1.043 0.02
12/12/2020 03:55 2.15 18:30 4.21 2.98 03:35 6.94 18:30 11.24 9.22 03:55 0.490 18:30 2.025 1.050 1.050 0.01
12/13/2020 04:25 2.18 13:30 4.48 3.05 06:15 6.56 13:30 11.56 9.27 06:15 0.474 13:30 2.267 1.095 1.095 0.24
12/14/2020 04:45 2.19 19:45 4.27 3.01 04:40 6.51 14:50 11.45 9.33 04:40 0.478 19:45 2.028 1.071 1.071 0.05
12/15/2020 04:40 2.06 21:20 4.44 3.10 03:50 7.08 21:20 11.54 9.44 04:40 0.461 21:20 2.235 1.139 1.139 0.58
12/16/2020 04:15 2.32 19:35 4.46 3.22 04:15 7.75 12:10 11.36 9.60 04:15 0.597 17:00 2.197 1.211 1.211 0.39
12/17/2020 04:50 2.52 22:05 4.48 3.26 04:50 7.80 14:20 11.05 9.53 04:50 0.678 22:05 2.134 1.216 1.216 0.08
12/18/2020 03:35 2.42 11:55 4.40 3.18 03:35 7.56 15:20 11.45 9.36 03:35 0.618 15:20 2.151 1.155 1.155 0.25
12/19/2020 03:50 2.39 19:35 4.57 3.29 04:55 7.30 10:10 11.28 9.47 04:55 0.596 19:35 2.227 1.236 1.236 0.37
12/20/2020 03:55 2.63 13:45 4.81 3.43 04:50 8.00 13:45 11.45 9.68 06:50 0.770 13:45 2.478 1.333 1.333 0.04
12/21/2020 03:15 2.71 21:45 5.11 3.72 03:40 8.12 14:30 11.62 9.95 03:25 0.800 21:45 2.592 1.546 1.546 1.07
12/22/2020 04:05 3.12 17:35 4.76 3.77 03:30 8.89 20:10 11.24 10.03 04:05 1.057 17:35 2.279 1.557 1.557 -
12/23/2020 04:40 2.65 11:50 4.63 3.45 03:20 8.29 15:45 11.52 9.82 04:40 0.793 15:45 2.301 1.356 1.356 -
12/24/2020 04:25 2.54 13:10 4.70 3.40 04:20 7.54 09:35 11.36 9.59 04:20 0.670 13:10 2.374 1.309 1.309 -
12/25/2020 05:40 2.36 22:15 4.52 3.25 05:40 7.36 21:40 11.08 9.30 05:40 0.583 22:15 2.197 1.191 1.191 0.49
12/26/2020 04:20 2.47 20:05 4.51 3.24 04:20 7.63 12:25 11.15 9.40 04:20 0.645 20:05 2.154 1.199 1.199 0.02
12/27/2020 04:45 2.32 11:50 4.64 3.24 05:20 7.15 11:50 11.26 9.38 05:20 0.564 11:50 2.318 1.198 1.198 0.13
12/28/2020 03:35 2.42 19:05 4.37 3.16 03:00 7.61 18:25 11.39 9.33 03:35 0.630 21:20 2.041 1.144 1.144 -
12/29/2020 04:35 2.33 21:45 4.37 3.06 05:15 7.20 12:00 10.80 9.00 05:15 0.565 21:45 2.006 1.053 1.053 0.14
12/30/2020 01:20 2.51 23:25 4.70 3.48 02:00 7.03 11:25 10.88 9.45 02:00 0.641 23:25 2.271 1.335 1.335 0.78
12/31/2020 05:10 2.86 13:25 4.67 3.61 05:10 8.37 10:55 11.12 9.68 05:10 0.874 13:25 2.227 1.424 1.424 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 224.444 30.65
Average 3.10 9.02 1.095
Page 678 of 1163
158
Page 679 of 1163
159
AUB_Y-3_101255
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.79 5.27 0.722
Minimum 1.82 3.21 0.231
Maximum 5.34 7.28 2.420
Min Time 11/01/2020 4:00:00 AM 10/03/2020 3:00:00 AM 10/03/2020 3:00:00 AM
Max Time 01/03/2021 1:00:00 AM 01/12/2021 10:00:00 AM 01/03/2021 1:00:00 AM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calc ulate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 100
VFINAL (ft/s) 100
QFINAL (MGD - Total MG) 100
Pipe Elliptical (23 in H x 23.5 in W)
Silt 0.00 (in)
Page 680 of 1163
4455 S. 134th Place
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Hydrograph Report
AUB_Y-3_101255
Page 681 of 1163
4455 S. 134th Place
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206-762-5070
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Scattergraph Report
AUB_Y-3_101255
Page 682 of 1163
4455 S. 134th Place
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206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_Y-3_101255Pipe: Elliptical (23 in H x 23.5 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 01:25 2.62 15:20 3.98 3.28 01:20 4.94 17:55 6.50 5.79 01:25 0.599 17:55 1.421 0.974 0.974 0.51
01/02/2021 05:50 2.76 23:40 5.07 3.67 01:45 5.21 23:30 7.14 6.01 05:50 0.678 23:40 2.217 1.203 1.203 1.69
01/03/2021 22:05 4.01 00:45 5.50 4.63 07:35 6.12 01:05 7.37 6.70 22:05 1.393 00:55 2.530 1.843 1.843 0.65
01/04/2021 04:00 3.57 10:55 4.67 4.17 04:00 6.10 18:45 7.18 6.74 04:00 1.150 10:55 1.965 1.590 1.590 0.48
01/05/2021 04:10 3.21 00:10 4.14 3.75 05:30 6.07 19:10 7.21 6.77 04:10 0.990 00:10 1.628 1.371 1.371 0.52
01/06/2021 23:15 3.17 05:55 4.05 3.66 23:15 6.33 21:05 7.33 6.93 23:15 1.003 05:55 1.653 1.358 1.358 0.22
01/07/2021 04:20 2.68 16:45 4.05 3.30 04:20 5.78 16:45 7.30 6.62 04:20 0.718 16:45 1.648 1.118 1.118 -
01/08/2021 02:35 2.50 13:20 3.69 3.16 04:40 5.37 10:15 7.03 6.44 02:35 0.626 13:20 1.383 1.023 1.023 0.22
01/09/2021 04:45 2.39 18:10 3.51 3.05 01:50 5.51 12:35 6.92 6.29 04:45 0.581 18:10 1.267 0.949 0.949 -
01/10/2021 05:15 2.26 14:15 3.49 2.94 06:40 5.33 10:25 6.83 6.14 05:15 0.516 14:15 1.217 0.882 0.882 0.07
01/11/2021 03:05 2.24 21:25 4.16 3.19 04:20 5.04 11:40 6.89 6.25 03:05 0.490 21:25 1.593 1.022 1.022 1.06
01/12/2021 01:05 3.18 19:35 5.21 4.61 00:10 6.07 10:15 7.44 6.87 01:05 0.968 10:15 2.390 1.884 1.884 2.10
01/13/2021 22:10 3.68 00:30 5.32 4.47 21:30 6.37 00:30 7.27 6.72 22:10 1.264 00:30 2.429 1.756 1.756 0.09
01/14/2021 23:40 3.03 00:40 4.06 3.59 01:35 6.14 12:55 7.19 6.70 23:40 0.939 12:55 1.553 1.271 1.271 0.01
01/15/2021 04:25 2.70 11:30 3.61 3.16 04:25 5.88 11:30 7.19 6.62 04:25 0.737 11:30 1.378 1.050 1.050 0.09
01/16/2021 06:35 2.46 16:05 3.40 2.98 05:50 5.63 10:30 7.00 6.39 05:50 0.625 16:05 1.192 0.930 0.930 -
01/17/2021 05:25 2.30 14:05 3.39 2.92 05:25 5.45 11:00 6.77 6.21 05:25 0.540 14:05 1.180 0.879 0.879 0.10
01/18/2021 05:00 2.29 13:30 3.30 2.81 01:45 5.32 08:40 6.71 6.06 05:00 0.529 13:30 1.113 0.810 0.810 -
01/19/2021 03:45 2.18 20:05 3.20 2.76 02:45 5.05 10:55 6.55 5.91 03:45 0.481 20:00 1.018 0.770 0.770 0.01
01/20/2021 04:30 2.20 18:40 3.10 2.69 04:30 4.98 10:30 6.36 5.77 04:30 0.464 18:40 0.942 0.726 0.726 -
01/21/2021 03:45 2.13 19:50 3.23 2.73 02:15 4.77 11:40 6.20 5.63 02:50 0.428 19:50 0.980 0.724 0.724 0.11
01/22/2021 03:50 2.12 17:25 3.25 2.74 03:50 4.55 08:30 6.07 5.50 03:50 0.401 17:25 0.984 0.710 0.710 -
01/23/2021 04:45 2.05 12:00 3.31 2.71 03:20 4.59 12:00 6.29 5.45 03:20 0.396 12:00 1.064 0.696 0.696 -
01/24/2021 05:55 2.07 19:20 3.30 2.76 04:15 4.58 09:25 6.10 5.41 04:15 0.403 19:20 1.014 0.709 0.709 0.16
01/25/2021 04:20 2.17 13:55 3.18 2.75 02:45 4.62 18:55 6.03 5.45 04:20 0.429 18:55 0.958 0.710 0.710 0.04
01/26/2021 03:20 2.10 18:45 3.12 2.66 03:10 4.63 11:25 6.02 5.42 03:20 0.402 18:45 0.901 0.671 0.671 -
01/27/2021 04:25 1.91 17:55 3.13 2.63 03:20 4.43 07:40 6.01 5.32 04:25 0.336 21:30 0.922 0.648 0.648 0.14
01/28/2021 04:20 2.00 20:00 3.18 2.69 02:35 4.47 08:10 5.92 5.28 04:20 0.374 20:00 0.935 0.665 0.665 0.24
01/29/2021 04:45 2.00 19:40 3.11 2.68 04:45 4.09 10:50 5.90 5.24 04:45 0.329 10:50 0.898 0.656 0.656 0.03
01/30/2021 04:40 2.01 13:55 3.17 2.67 05:10 4.26 09:45 5.85 5.22 05:10 0.348 15:50 0.917 0.649 0.649 0.07
01/31/2021 06:30 1.93 12:55 3.21 2.67 04:00 4.33 11:10 5.88 5.19 06:30 0.339 15:40 0.930 0.652 0.652 0.12
02/01/2021 01:25 2.08 20:45 3.47 2.84 01:25 4.26 22:30 5.85 5.33 01:25 0.365 20:45 1.048 0.729 0.729 0.82
02/02/2021 04:40 2.51 11:30 4.28 3.14 04:35 4.78 11:30 6.50 5.57 04:40 0.540 11:30 1.591 0.880 0.880 0.31
02/03/2021 03:55 2.36 17:40 3.43 2.97 03:10 4.69 19:30 6.41 5.64 03:10 0.487 19:30 1.115 0.821 0.821 0.06
02/04/2021 04:20 2.12 18:35 3.45 2.82 04:20 4.74 17:45 6.50 5.67 04:20 0.418 17:45 1.132 0.767 0.767 0.07
02/05/2021 03:35 2.15 17:20 3.41 2.76 03:35 4.78 07:55 6.26 5.57 03:35 0.430 17:20 1.095 0.729 0.729 0.01
02/06/2021 05:45 2.05 19:25 3.38 2.77 03:20 4.72 08:25 6.33 5.49 05:45 0.396 19:25 1.089 0.724 0.724 0.01
02/07/2021 05:10 1.97 13:45 3.39 2.73 02:30 4.42 13:45 6.13 5.38 03:25 0.358 13:45 1.071 0.695 0.695 -
02/08/2021 03:55 1.92 13:05 3.71 2.72 03:00 4.31 13:20 6.33 5.36 03:00 0.335 13:20 1.261 0.694 0.694 -
02/09/2021 04:20 1.90 19:10 3.25 2.67 01:50 4.32 19:05 6.16 5.32 04:20 0.332 19:05 0.996 0.666 0.666 -
02/10/2021 03:55 1.88 18:45 3.22 2.65 03:45 4.29 10:45 6.11 5.27 03:55 0.323 18:45 0.952 0.652 0.652 -
02/11/2021 03:20 1.84 18:15 3.28 2.63 03:20 4.07 12:50 6.18 5.23 03:20 0.291 21:40 1.006 0.642 0.642 -
02/12/2021 04:25 1.77 20:45 3.24 2.56 04:25 4.02 13:05 6.04 5.13 04:25 0.271 17:00 0.973 0.609 0.609 -
02/13/2021 04:55 1.75 12:15 3.25 2.56 04:55 4.01 11:15 5.98 5.12 04:55 0.266 12:15 0.970 0.606 0.606 0.08
02/14/2021 05:50 1.74 15:30 3.32 2.62 03:50 4.11 09:50 6.15 5.20 05:50 0.277 16:10 1.012 0.639 0.639 0.71
02/15/2021 01:20 2.30 20:25 4.39 3.50 01:20 4.61 17:00 6.75 5.99 01:20 0.456 16:00 1.698 1.133 1.133 0.78
02/16/2021 23:55 2.94 13:40 4.15 3.60 02:55 5.57 12:05 6.74 6.27 23:50 0.816 12:05 1.562 1.201 1.201 0.07
02/17/2021 02:15 2.59 13:00 3.69 3.11 04:25 5.33 11:25 6.75 6.13 04:25 0.633 13:00 1.329 0.954 0.954 -
02/18/2021 04:35 2.31 19:40 3.56 2.95 05:25 5.26 16:45 6.67 6.06 04:35 0.528 19:40 1.230 0.873 0.873 0.09
02/19/2021 03:50 2.26 19:25 3.39 2.86 05:15 5.18 08:35 6.70 6.00 03:50 0.504 12:10 1.141 0.829 0.829 0.17
02/20/2021 03:35 2.20 13:30 3.57 2.80 04:20 4.96 13:15 6.96 5.97 04:20 0.464 13:20 1.301 0.800 0.800 0.07
02/21/2021 03:55 2.10 23:20 3.72 2.80 03:55 4.92 23:20 6.90 6.02 03:55 0.428 23:20 1.378 0.808 0.808 0.42
02/22/2021 01:45 2.80 13:10 4.73 3.92 01:45 5.91 13:05 7.35 6.79 01:45 0.780 13:10 2.068 1.484 1.484 0.98
02/23/2021 06:15 2.99 21:25 3.95 3.50 06:15 5.73 21:15 6.96 6.39 06:15 0.835 21:25 1.512 1.175 1.175 0.27
02/24/2021 04:45 2.63 18:30 3.66 3.26 07:20 5.62 17:25 6.89 6.39 04:45 0.697 18:30 1.326 1.061 1.061 -
02/25/2021 03:00 2.47 09:40 3.50 3.12 02:45 4.98 18:05 6.93 6.38 02:15 0.579 09:40 1.261 0.995 0.995 0.18
02/26/2021 05:25 2.40 13:25 3.37 2.96 03:55 5.03 21:05 6.89 6.22 05:25 0.532 22:05 1.166 0.899 0.899 0.10
02/27/2021 06:10 2.26 11:35 3.38 2.83 03:40 4.95 09:10 6.83 6.10 03:40 0.488 11:35 1.187 0.830 0.830 0.02
02/28/2021 05:30 2.12 14:10 3.42 2.80 05:30 4.95 15:40 6.73 6.00 05:30 0.436 14:05 1.158 0.806 0.806 0.02
03/01/2021 04:20 2.05 19:25 3.34 2.74 04:20 4.92 07:40 6.62 5.92 04:20 0.413 19:25 1.102 0.768 0.768 -
03/02/2021 03:30 1.99 19:00 3.32 2.66 03:30 4.85 10:10 6.61 5.83 03:30 0.390 18:55 1.080 0.724 0.724 -
03/03/2021 03:40 1.91 18:05 3.27 2.62 05:15 4.56 07:45 6.56 5.74 05:15 0.354 18:00 1.066 0.698 0.698 -
03/04/2021 02:30 1.91 19:20 3.28 2.60 02:30 4.41 08:00 6.42 5.66 02:30 0.332 19:20 1.034 0.683 0.683 0.20
03/05/2021 04:30 1.92 19:50 3.21 2.65 03:35 4.59 11:55 6.38 5.64 04:30 0.351 19:50 0.997 0.698 0.698 0.05
03/06/2021 05:40 1.87 20:30 3.25 2.61 05:40 4.45 11:20 6.34 5.54 05:40 0.325 20:30 1.038 0.670 0.670 -
03/07/2021 03:25 1.85 13:50 3.29 2.66 05:15 4.36 11:40 6.22 5.45 03:25 0.316 12:20 1.014 0.680 0.680 0.04
03/08/2021 04:45 1.89 13:00 3.29 2.63 04:25 4.30 13:40 6.20 5.39 04:45 0.327 13:00 1.017 0.663 0.663 -
03/09/2021 05:10 1.83 20:40 3.23 2.56 03:30 4.11 11:10 6.17 5.39 03:35 0.301 20:40 0.971 0.637 0.637 0.01
03/10/2021 04:05 1.78 20:30 3.27 2.59 04:05 4.19 08:45 6.18 5.33 04:05 0.285 20:25 0.983 0.640 0.640 -
03/11/2021 03:10 1.78 20:15 3.25 2.61 03:10 3.89 11:50 6.13 5.31 03:10 0.264 20:15 0.974 0.645 0.645 -
Page 683 of 1163
163
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 03:35 1.75 14:05 3.17 2.53 02:30 4.13 10:00 6.19 5.24 04:20 0.280 14:05 0.944 0.611 0.611 -
03/13/2021 06:15 1.69 15:20 3.16 2.49 05:00 3.99 11:15 6.10 5.17 05:00 0.263 15:20 0.930 0.588 0.588 -
03/14/2021 04:50 1.62 19:15 3.46 2.59 04:50 3.76 12:00 5.96 5.18 04:50 0.222 19:15 1.058 0.629 0.629 0.30
03/15/2021 03:35 1.78 18:55 3.26 2.65 03:20 4.05 15:45 6.05 5.22 03:35 0.275 15:45 0.991 0.649 0.649 -
03/16/2021 04:20 1.76 17:15 3.64 2.56 04:20 3.87 17:15 6.26 5.21 04:20 0.259 17:15 1.210 0.618 0.618 -
03/17/2021 02:45 1.73 20:20 3.02 2.42 04:40 4.10 20:20 6.39 5.44 02:45 0.276 20:20 0.946 0.592 0.592 -
03/18/2021 03:15 1.68 18:05 3.15 2.39 03:15 4.25 18:00 6.36 5.46 03:15 0.267 18:05 0.995 0.585 0.585 0.11
03/19/2021 02:00 1.72 13:55 3.02 2.43 02:00 4.24 17:45 6.37 5.43 02:00 0.273 17:45 0.902 0.593 0.593 0.03
03/20/2021 04:25 1.63 16:05 3.01 2.42 04:20 3.96 12:25 6.16 5.34 04:25 0.244 16:00 0.891 0.582 0.582 0.17
03/21/2021 04:45 1.64 13:20 3.22 2.47 04:45 4.11 08:15 6.27 5.27 04:45 0.249 13:15 0.990 0.594 0.594 0.07
03/22/2021 02:40 1.73 16:55 3.14 2.52 02:40 4.08 13:50 6.04 5.22 02:40 0.267 16:50 0.916 0.604 0.604 0.11
03/23/2021 03:45 1.70 10:35 3.34 2.52 01:25 4.14 10:35 6.29 5.33 03:40 0.265 10:35 1.074 0.617 0.617 -
03/24/2021 03:25 1.72 19:15 3.41 2.50 03:25 4.14 15:00 6.13 5.34 03:25 0.268 19:15 1.077 0.612 0.612 0.34
03/25/2021 01:05 2.12 19:50 3.28 2.75 02:35 4.73 18:55 6.18 5.53 01:05 0.419 19:50 1.008 0.719 0.719 0.27
03/26/2021 02:40 1.89 14:55 3.19 2.62 02:40 4.29 11:45 6.21 5.46 02:40 0.320 10:25 0.978 0.665 0.665 -
03/27/2021 04:50 1.82 10:55 3.17 2.53 03:05 4.42 08:25 6.24 5.39 04:50 0.315 17:50 0.962 0.627 0.627 -
03/28/2021 04:50 1.72 15:30 3.51 2.67 03:40 4.31 13:55 6.20 5.38 03:40 0.284 14:00 1.119 0.682 0.682 0.37
03/29/2021 02:45 1.84 12:55 3.30 2.67 02:40 4.31 06:35 6.15 5.36 02:45 0.311 12:50 0.999 0.674 0.674 -
03/30/2021 02:15 1.79 16:30 3.15 2.58 02:10 4.09 13:20 6.13 5.31 02:15 0.281 16:30 0.962 0.636 0.636 -
03/31/2021 02:00 1.76 19:50 3.26 2.55 01:50 4.24 12:45 6.08 5.30 02:00 0.285 19:50 1.001 0.621 0.621 -
04/01/2021 03:10 1.74 20:40 3.23 2.52 02:20 4.00 15:35 6.10 5.27 02:20 0.267 20:40 0.969 0.609 0.609 -
04/02/2021 02:35 1.72 14:15 3.04 2.48 02:35 3.98 08:20 6.00 5.17 02:35 0.258 14:05 0.877 0.582 0.582 -
04/03/2021 03:05 1.68 12:40 3.22 2.50 04:55 3.87 10:45 5.90 5.09 05:00 0.243 10:50 0.950 0.584 0.584 -
04/04/2021 03:20 1.74 13:20 3.35 2.56 03:10 3.99 09:50 5.93 5.06 04:15 0.263 13:20 0.992 0.601 0.601 -
04/05/2021 02:30 1.69 19:25 3.15 2.48 02:30 3.87 19:20 6.02 5.09 02:30 0.245 19:25 0.939 0.574 0.574 -
04/06/2021 02:50 1.70 10:20 2.98 2.44 02:50 4.06 13:05 6.13 5.20 02:50 0.258 20:10 0.871 0.575 0.575 -
04/07/2021 02:10 1.62 20:30 3.08 2.40 03:55 4.12 07:55 6.15 5.21 02:10 0.247 19:25 0.918 0.564 0.564 0.22
04/08/2021 03:30 1.75 12:10 3.17 2.48 02:25 4.22 21:05 5.96 5.11 03:30 0.283 12:10 0.932 0.576 0.576 -
04/09/2021 04:10 1.67 15:25 3.04 2.40 02:15 3.96 19:00 6.00 5.13 04:10 0.247 19:00 0.874 0.553 0.553 0.03
04/10/2021 05:35 1.63 19:50 3.09 2.41 02:30 3.93 19:50 6.14 5.12 05:35 0.238 19:50 0.939 0.556 0.556 0.02
04/11/2021 04:30 1.57 12:45 3.22 2.46 04:30 3.50 08:00 6.09 5.08 04:30 0.198 12:45 0.952 0.571 0.571 -
04/12/2021 03:30 1.60 13:30 3.15 2.46 03:25 3.73 06:50 5.87 5.06 03:25 0.220 13:30 0.907 0.567 0.567 -
04/13/2021 02:40 1.64 10:10 3.21 2.48 00:35 3.85 10:10 5.82 4.98 02:40 0.235 10:10 0.937 0.568 0.568 -
04/14/2021 02:20 1.61 19:20 3.03 2.42 02:20 3.85 14:35 6.11 5.13 02:20 0.225 19:20 0.877 0.560 0.558 -
09/22/2020 03:30 1.92 10:50 3.23 2.45 02:50 2.80 10:50 5.41 4.34 02:50 0.217 10:50 0.882 0.486 0.486 -
09/23/2020 01:55 1.90 20:00 3.53 2.63 00:55 3.08 20:00 5.80 4.53 01:05 0.235 20:00 1.074 0.565 0.565 -
09/24/2020 03:50 1.96 15:45 3.46 2.74 02:05 3.32 14:15 5.67 4.62 03:45 0.266 15:45 1.009 0.610 0.610 -
09/25/2020 03:05 1.94 14:55 3.50 2.73 03:05 3.12 14:50 5.71 4.62 03:05 0.242 14:50 1.035 0.604 0.604 -
09/26/2020 05:40 1.91 17:55 3.23 2.61 05:35 3.11 16:00 5.47 4.53 05:35 0.238 17:55 0.876 0.555 0.555 -
09/27/2020 04:15 1.90 11:20 3.23 2.60 04:05 3.02 16:45 5.48 4.51 04:05 0.231 11:20 0.887 0.552 0.552 -
09/28/2020 02:15 1.93 12:10 3.43 2.58 02:15 3.02 12:05 5.64 4.57 02:15 0.232 12:10 0.993 0.553 0.553 -
09/29/2020 01:50 1.74 13:20 3.23 2.47 03:05 3.05 13:15 5.58 4.54 03:05 0.206 13:15 0.906 0.513 0.513 -
09/30/2020 04:25 1.63 17:10 3.13 2.42 01:45 3.18 12:35 5.45 4.51 04:20 0.204 12:35 0.845 0.495 0.495 -
10/01/2020 01:10 1.80 18:30 3.10 2.46 02:55 3.17 18:25 5.39 4.44 01:10 0.222 18:25 0.823 0.497 0.497 -
10/02/2020 03:25 1.84 14:40 3.06 2.43 03:50 3.00 14:40 5.34 4.38 03:50 0.220 14:40 0.802 0.483 0.483 -
10/03/2020 03:35 1.83 11:00 3.11 2.44 03:20 2.89 21:10 5.53 4.40 03:45 0.210 21:10 0.818 0.489 0.489 0.01
10/04/2020 03:40 1.81 11:25 3.19 2.48 05:35 2.80 11:25 5.46 4.42 03:50 0.197 11:25 0.876 0.506 0.506 0.01
10/05/2020 01:55 1.87 20:15 3.24 2.52 03:05 3.03 20:15 5.53 4.44 02:00 0.223 20:15 0.907 0.516 0.516 -
10/06/2020 03:25 1.87 18:45 3.13 2.49 01:45 3.12 18:40 5.55 4.47 04:35 0.236 18:45 0.856 0.512 0.512 -
10/07/2020 03:40 1.95 20:05 3.11 2.49 01:50 3.06 20:05 5.43 4.38 02:05 0.258 20:05 0.836 0.496 0.496 -
10/08/2020 03:10 1.90 09:20 3.00 2.45 03:00 3.33 16:35 5.28 4.37 03:10 0.250 09:20 0.766 0.486 0.486 -
10/09/2020 03:35 1.91 12:05 3.00 2.48 03:35 3.17 14:55 5.26 4.35 03:35 0.239 14:55 0.765 0.492 0.492 0.64
10/10/2020 05:10 2.21 10:50 3.70 2.91 04:40 3.82 10:50 5.86 4.83 04:45 0.366 10:50 1.160 0.686 0.686 1.04
10/11/2020 02:10 2.04 19:25 3.72 2.76 03:40 3.36 17:35 5.82 4.68 03:40 0.288 19:25 1.158 0.625 0.625 0.53
10/12/2020 02:30 2.12 13:05 3.44 2.76 04:15 3.54 13:05 5.67 4.72 04:15 0.314 13:05 1.012 0.620 0.620 -
10/13/2020 00:40 2.10 09:40 3.75 2.95 02:45 3.34 17:30 5.78 4.83 02:40 0.293 07:35 1.138 0.708 0.708 0.61
10/14/2020 03:15 2.03 18:40 3.18 2.71 03:10 3.41 18:40 5.25 4.61 03:15 0.287 18:40 0.838 0.589 0.589 -
10/15/2020 04:35 2.06 17:20 3.13 2.64 01:15 3.28 19:40 5.26 4.52 01:15 0.285 17:15 0.797 0.559 0.559 -
10/16/2020 03:25 2.04 11:45 3.17 2.57 03:25 3.22 17:35 5.39 4.45 03:25 0.269 11:45 0.804 0.529 0.529 -
10/17/2020 05:00 1.92 10:40 3.34 2.53 05:05 3.19 10:40 5.37 4.46 05:05 0.242 10:40 0.921 0.521 0.521 0.01
10/18/2020 05:35 1.80 10:55 3.17 2.55 02:45 3.16 11:55 5.52 4.55 02:45 0.224 11:55 0.863 0.540 0.540 0.03
10/19/2020 03:35 1.87 18:00 3.13 2.53 03:50 3.28 17:00 5.38 4.52 03:50 0.239 18:00 0.831 0.528 0.528 0.05
10/20/2020 03:35 1.95 13:55 3.39 2.55 03:45 3.09 18:15 5.53 4.50 03:35 0.245 13:55 0.950 0.535 0.535 -
10/21/2020 05:20 1.90 18:00 3.10 2.50 02:40 2.88 11:55 5.36 4.44 02:40 0.221 09:55 0.816 0.509 0.509 0.01
10/22/2020 03:25 1.84 19:00 3.16 2.50 03:10 3.04 18:55 5.45 4.43 03:25 0.219 19:00 0.851 0.507 0.507 -
10/23/2020 05:30 1.94 18:55 3.06 2.50 03:50 3.03 17:00 5.31 4.37 03:55 0.237 17:00 0.793 0.502 0.502 0.20
10/24/2020 05:20 1.92 10:55 3.30 2.56 05:15 3.00 10:50 5.46 4.48 05:15 0.231 10:55 0.914 0.532 0.532 0.02
10/25/2020 02:50 1.88 12:00 3.21 2.53 03:00 2.81 20:15 5.54 4.46 03:00 0.207 20:15 0.889 0.527 0.527 -
10/26/2020 03:10 1.88 21:00 3.17 2.55 03:20 3.07 20:55 5.51 4.51 03:20 0.232 20:55 0.870 0.532 0.532 -
10/27/2020 03:15 1.61 19:15 3.15 2.49 02:55 3.48 10:05 5.52 4.61 03:10 0.211 10:05 0.861 0.525 0.525 -
10/28/2020 03:15 1.76 10:35 3.25 2.49 03:30 2.88 19:20 5.63 4.49 03:25 0.196 19:20 0.910 0.515 0.515 -
10/29/2020 04:15 1.81 19:10 3.06 2.46 03:00 3.17 19:05 5.47 4.47 03:05 0.226 19:10 0.819 0.499 0.499 -
10/30/2020 04:30 1.75 16:55 3.09 2.43 02:55 3.00 17:50 5.37 4.44 02:55 0.203 16:55 0.813 0.490 0.490 0.10
10/31/2020 05:50 1.79 10:40 3.15 2.42 04:25 2.97 20:10 5.42 4.37 04:25 0.206 10:40 0.828 0.481 0.481 -
Page 684 of 1163
164
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 03:05 1.75 13:10 3.20 2.42 04:45 2.76 13:05 5.46 4.41 04:45 0.186 13:05 0.872 0.489 0.489 -
11/02/2020 02:30 1.87 12:55 3.13 2.47 01:35 3.17 12:50 5.53 4.47 01:35 0.234 12:55 0.862 0.506 0.506 -
11/03/2020 03:30 1.77 17:25 3.54 2.64 03:30 2.92 20:00 5.81 4.65 03:30 0.198 20:00 1.074 0.594 0.594 0.83
11/04/2020 02:50 1.97 20:20 3.31 2.68 02:50 3.79 20:20 5.74 4.78 02:50 0.299 20:20 0.968 0.603 0.603 0.09
11/05/2020 02:10 2.00 16:10 3.59 2.88 01:10 3.92 16:05 5.95 4.97 03:35 0.316 16:05 1.125 0.700 0.700 0.34
11/06/2020 01:45 2.35 16:55 3.51 2.97 03:05 4.22 12:30 5.83 5.11 01:45 0.437 14:15 1.028 0.746 0.746 0.10
11/07/2020 05:40 1.93 14:35 3.32 2.71 05:40 3.78 19:35 5.75 4.96 05:40 0.289 19:40 0.954 0.637 0.637 0.07
11/08/2020 04:55 1.77 19:15 3.32 2.65 04:50 3.88 19:15 5.75 4.89 04:55 0.261 19:15 0.975 0.610 0.610 0.01
11/09/2020 03:55 1.80 18:55 3.24 2.59 03:55 3.70 18:50 5.74 4.79 03:55 0.255 18:50 0.933 0.579 0.579 0.04
11/10/2020 02:20 1.78 17:10 3.44 2.55 02:15 3.57 17:10 5.72 4.72 02:20 0.246 17:10 1.020 0.557 0.557 0.03
11/11/2020 02:25 1.78 19:00 3.17 2.52 02:25 3.56 14:15 5.50 4.64 02:25 0.242 13:25 0.853 0.539 0.539 -
11/12/2020 04:15 1.76 10:50 3.17 2.54 04:15 3.41 10:50 5.61 4.59 04:15 0.229 10:50 0.889 0.537 0.537 0.16
11/13/2020 02:55 1.90 17:35 3.32 2.66 02:55 3.73 21:00 5.53 4.68 02:55 0.279 17:35 0.915 0.585 0.585 0.38
11/14/2020 04:45 1.86 21:00 3.46 2.71 04:45 3.48 22:30 5.76 4.72 04:45 0.253 22:30 1.024 0.611 0.611 0.47
11/15/2020 05:30 2.11 13:05 3.58 2.93 05:30 3.83 20:40 5.82 4.98 05:30 0.334 13:05 1.086 0.715 0.715 0.19
11/16/2020 03:20 2.07 19:05 3.58 2.91 03:15 3.92 19:00 5.92 5.01 03:20 0.334 19:05 1.093 0.715 0.715 0.31
11/17/2020 03:10 2.17 21:30 3.70 2.99 02:55 3.92 18:05 6.01 5.10 03:00 0.363 21:30 1.157 0.755 0.755 0.20
11/18/2020 04:00 2.29 15:25 3.66 3.05 03:10 4.22 13:55 6.01 5.15 03:10 0.425 13:55 1.147 0.782 0.782 0.30
11/19/2020 03:35 2.28 11:15 3.57 2.99 02:00 4.19 13:55 5.96 5.12 03:35 0.414 11:15 1.099 0.754 0.754 0.50
11/20/2020 03:45 2.17 13:35 3.47 2.84 04:45 4.05 15:55 5.79 5.00 03:45 0.371 12:45 1.024 0.684 0.684 0.01
11/21/2020 03:55 1.96 12:35 3.44 2.71 04:45 3.87 10:40 5.86 4.99 04:50 0.305 12:35 1.033 0.639 0.639 -
11/22/2020 04:05 1.88 13:45 3.36 2.72 05:50 4.08 10:05 5.85 5.02 04:05 0.304 10:05 0.992 0.652 0.652 0.21
11/23/2020 04:15 2.02 13:30 3.46 2.85 04:15 4.08 18:25 5.76 5.04 04:15 0.334 13:30 1.031 0.693 0.693 0.14
11/24/2020 03:20 2.08 17:15 3.62 2.88 03:10 4.01 21:25 5.89 5.01 04:10 0.349 17:15 1.123 0.706 0.706 0.21
11/25/2020 03:20 2.13 17:40 3.57 2.87 03:15 4.01 19:45 5.83 5.01 03:20 0.357 17:40 1.093 0.697 0.697 0.05
11/26/2020 05:45 2.03 13:20 3.65 2.84 05:45 3.90 16:10 5.81 4.96 05:45 0.322 13:20 1.112 0.686 0.686 0.02
11/27/2020 04:45 1.95 14:50 3.31 2.72 04:45 3.84 14:50 5.62 4.84 04:45 0.298 14:50 0.950 0.623 0.623 -
11/28/2020 04:20 2.04 15:25 3.42 2.74 02:45 3.90 15:25 5.63 4.80 04:20 0.325 15:25 0.996 0.627 0.627 0.05
11/29/2020 05:20 1.92 14:35 3.47 2.72 05:15 3.55 14:30 5.87 4.73 05:20 0.270 14:30 1.054 0.614 0.614 -
11/30/2020 02:15 2.03 21:35 3.56 2.83 03:10 3.78 14:35 5.80 4.83 02:15 0.313 21:35 1.061 0.659 0.659 0.36
12/01/2020 04:00 2.00 15:50 3.40 2.73 04:00 3.53 20:30 5.54 4.71 04:00 0.285 15:50 0.960 0.612 0.612 -
12/02/2020 04:20 1.96 16:05 3.87 2.72 04:05 3.55 16:05 5.86 4.70 04:05 0.280 16:05 1.242 0.609 0.609 0.01
12/03/2020 04:55 1.85 19:05 3.25 2.65 04:55 3.51 14:55 5.54 4.74 04:55 0.254 12:50 0.894 0.590 0.590 -
12/04/2020 04:30 1.82 14:45 3.28 2.60 04:30 3.57 13:20 5.64 4.78 04:30 0.251 13:20 0.921 0.580 0.580 -
12/05/2020 06:30 1.81 12:05 3.34 2.60 06:20 3.79 10:30 5.74 4.84 06:30 0.272 12:05 0.963 0.586 0.586 0.03
12/06/2020 05:15 1.76 11:55 3.43 2.60 03:20 3.81 13:15 5.83 4.84 05:15 0.261 11:55 1.024 0.591 0.591 0.03
12/07/2020 05:25 1.71 13:05 3.21 2.51 03:30 3.84 20:20 5.94 5.03 03:30 0.256 13:05 0.927 0.578 0.578 -
12/08/2020 04:05 1.68 19:10 3.99 2.89 04:00 4.06 21:55 6.38 5.40 04:05 0.255 21:55 1.380 0.784 0.784 0.87
12/09/2020 23:30 2.93 07:25 3.78 3.42 23:20 5.07 08:00 6.29 5.78 23:20 0.722 13:10 1.266 1.028 1.028 0.17
12/10/2020 03:55 2.31 18:55 3.54 3.03 03:10 4.76 17:15 6.26 5.49 03:55 0.482 17:15 1.130 0.822 0.822 0.07
12/11/2020 04:00 2.07 13:45 3.37 2.90 04:00 4.14 17:00 6.04 5.28 04:00 0.353 17:00 1.038 0.743 0.743 0.02
12/12/2020 03:30 1.98 15:45 3.43 2.83 03:30 4.12 12:35 5.96 5.17 03:30 0.327 20:45 1.055 0.705 0.705 0.01
12/13/2020 04:35 1.97 14:00 3.61 2.84 02:10 4.01 19:00 5.94 5.07 04:35 0.331 14:00 1.114 0.701 0.701 0.24
12/14/2020 03:00 2.04 20:05 3.54 2.88 03:50 4.08 21:35 5.74 5.07 03:50 0.339 20:05 1.060 0.712 0.712 0.05
12/15/2020 02:35 2.04 18:15 3.64 2.95 03:55 3.95 18:10 5.93 5.11 03:55 0.331 18:10 1.142 0.746 0.746 0.58
12/16/2020 04:05 2.16 19:20 3.73 3.06 02:30 4.17 14:40 6.16 5.21 04:05 0.383 14:40 1.219 0.799 0.799 0.39
12/17/2020 04:25 2.40 16:30 3.68 3.17 04:25 4.48 16:15 6.10 5.36 04:25 0.472 16:30 1.171 0.856 0.856 0.08
12/18/2020 05:30 2.25 11:55 3.61 3.03 01:45 4.44 11:55 6.18 5.38 05:30 0.432 11:55 1.184 0.808 0.808 0.25
12/19/2020 04:00 2.23 20:10 3.64 3.02 05:55 4.59 19:20 6.24 5.49 05:15 0.440 20:10 1.202 0.820 0.820 0.37
12/20/2020 06:30 2.56 17:15 3.72 3.20 06:30 4.92 17:15 6.25 5.61 06:30 0.571 17:15 1.248 0.907 0.907 0.04
12/21/2020 01:30 2.49 18:35 4.67 3.61 01:30 4.78 20:55 6.91 5.93 01:30 0.534 20:55 1.901 1.163 1.163 1.07
12/22/2020 23:05 3.14 00:20 4.19 3.68 05:35 5.44 14:45 6.49 6.07 23:05 0.893 00:25 1.515 1.197 1.197 -
12/23/2020 23:55 2.68 11:30 3.68 3.16 04:30 5.14 20:55 6.47 5.93 03:05 0.644 11:30 1.259 0.943 0.943 -
12/24/2020 05:35 2.36 15:00 3.59 2.96 04:45 5.13 12:10 6.59 5.95 04:45 0.533 14:50 1.225 0.860 0.860 -
12/25/2020 03:55 2.18 16:35 3.53 2.86 04:30 4.90 11:35 6.35 5.77 03:55 0.451 16:35 1.170 0.795 0.795 0.49
12/26/2020 05:45 2.23 14:50 3.46 2.93 05:05 4.83 09:40 6.51 5.73 05:05 0.465 14:50 1.134 0.818 0.818 0.02
12/27/2020 05:00 2.13 12:40 3.54 2.92 05:00 4.84 11:05 6.42 5.72 05:00 0.427 12:40 1.166 0.815 0.815 0.13
12/28/2020 03:20 2.16 18:45 3.46 2.85 03:20 4.70 10:50 6.27 5.58 03:20 0.426 18:45 1.117 0.764 0.764 -
12/29/2020 04:05 2.09 17:35 3.45 2.82 03:20 4.58 11:00 6.13 5.41 03:20 0.399 17:35 1.075 0.731 0.731 0.14
12/30/2020 03:05 2.27 19:10 3.92 3.28 03:00 4.67 17:30 6.22 5.61 03:05 0.458 19:10 1.330 0.946 0.946 0.78
12/31/2020 04:20 2.80 17:00 3.94 3.39 02:35 5.10 16:50 6.34 5.77 04:20 0.681 17:00 1.374 1.013 1.013 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 148.023 30.65
Average 2.79 5.27 0.722
Page 685 of 1163
165
Page 686 of 1163
166
AUB_Y-4_101002
Site Commentary
SITE INFORMATION
OBSERVATIONS
Average flow depth, velocity, and quantity data observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021, along
with observed minimum and maximum data, are provided in the following table.
This site experienced backwater conditions during the month of January.
Observed Flow Conditions
Item DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total
MG)
Average 2.77 1.25 0.145
Minimum 1.72 0.48 0.044
Maximum 5.91 1.65 0.274
Min Time 11/10/2020 4:00:00 AM 01/13/2021 4:00:00 AM 04/04/2021 4:00:00 AM
Max Time 01/12/2021 7:00:00 PM 11/26/2020 11:00:00 AM 01/12/2021 7:00:00 PM
Based upon the quality and consistency of the observed flow depth and velocity data, the Continuity equation was used to calculate
flow rate and quantities during the monitoring period.
Values in the Observed Flow Conditions and data on the graphical reports are based on the one hour average.
DATA UPTIME
Data uptime observed during Tuesday, September 22, 2020 to Wednesday, April 14, 2021 is provided in the following table:
Percent Uptime
DFINAL (in) 100
VFINAL (ft/s) 100
QFINAL (MGD - Total MG) 100
Pipe Elliptical (18 in H x 18 in W)
Silt 0.00 (in)
Page 687 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Hydrograph Report
AUB_Y-4_101002
Page 688 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Scattergraph Report
AUB_Y-4_101002
Page 689 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
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Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
AUB_Y-4_101002Pipe: Elliptical (18 in H x 18 in W), Silt0.00 in
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 07:30 2.01 16:15 3.88 2.85 07:25 0.89 11:40 1.45 1.17 07:25 0.063 16:15 0.254 0.141 0.141 0.51
01/02/2021 03:20 1.98 21:55 4.91 3.25 03:15 0.84 12:20 1.44 1.14 03:20 0.058 21:50 0.295 0.167 0.167 1.69
01/03/2021 07:05 2.44 00:45 5.20 3.71 05:20 0.48 11:55 1.25 0.95 05:20 0.056 12:00 0.269 0.166 0.166 0.65
01/04/2021 04:20 2.06 12:20 4.13 3.19 04:50 0.70 19:50 1.38 1.07 04:50 0.055 19:40 0.239 0.150 0.150 0.48
01/05/2021 03:00 1.95 19:45 3.77 2.93 04:05 0.67 19:15 1.46 1.14 04:15 0.048 19:15 0.229 0.144 0.144 0.52
01/06/2021 05:00 2.15 18:25 3.68 2.91 06:00 0.79 19:50 1.51 1.16 04:55 0.066 18:20 0.222 0.142 0.142 0.22
01/07/2021 04:30 1.99 16:55 3.48 2.77 04:20 0.87 19:00 1.49 1.23 04:25 0.060 19:00 0.220 0.141 0.141 -
01/08/2021 03:50 1.97 18:15 3.55 2.76 03:50 0.84 18:15 1.57 1.25 03:50 0.057 18:15 0.250 0.143 0.143 0.22
01/09/2021 05:45 2.03 11:25 3.43 2.82 04:25 0.89 14:35 1.58 1.29 05:45 0.063 14:35 0.240 0.154 0.154 -
01/10/2021 04:45 2.02 13:30 3.47 2.84 04:45 0.88 18:15 1.60 1.29 04:45 0.062 18:50 0.245 0.157 0.157 0.07
01/11/2021 04:00 2.07 21:05 3.70 2.96 03:15 0.90 18:15 1.53 1.26 03:55 0.066 21:15 0.250 0.161 0.161 1.06
01/12/2021 01:30 2.43 19:10 6.26 4.19 11:40 0.65 00:00 1.19 0.89 02:05 0.093 19:15 0.292 0.178 0.178 2.10
01/13/2021 23:50 2.68 00:35 6.06 3.58 04:10 0.42 19:50 1.27 0.91 04:10 0.056 00:50 0.222 0.146 0.146 0.09
01/14/2021 04:00 1.79 18:35 3.82 2.90 03:50 0.71 18:25 1.47 1.13 03:50 0.042 20:05 0.232 0.141 0.141 0.01
01/15/2021 04:30 1.93 17:50 3.31 2.77 05:05 0.82 20:50 1.43 1.20 04:30 0.054 21:00 0.205 0.139 0.139 0.09
01/16/2021 05:20 1.95 12:55 3.46 2.76 05:20 0.83 17:40 1.59 1.26 05:20 0.056 12:55 0.241 0.146 0.146 -
01/17/2021 04:40 1.97 18:15 3.44 2.79 04:45 0.82 18:05 1.55 1.27 04:40 0.056 18:15 0.236 0.151 0.151 0.10
01/18/2021 05:00 1.90 18:25 3.38 2.78 05:00 0.83 18:20 1.56 1.28 05:00 0.053 18:25 0.232 0.151 0.151 -
01/19/2021 03:55 1.84 20:05 3.49 2.73 03:55 0.82 18:40 1.63 1.27 03:55 0.050 20:05 0.245 0.144 0.144 0.01
01/20/2021 04:30 1.93 21:25 3.36 2.72 04:30 0.83 21:20 1.52 1.25 04:30 0.055 21:20 0.224 0.141 0.141 -
01/21/2021 04:15 2.05 19:25 3.34 2.75 04:05 0.90 19:15 1.51 1.26 04:05 0.065 19:20 0.220 0.143 0.143 0.11
01/22/2021 04:50 1.88 20:05 3.28 2.72 04:25 0.81 20:05 1.50 1.24 04:25 0.052 20:05 0.214 0.140 0.140 -
01/23/2021 04:50 2.02 12:10 3.45 2.76 04:40 0.87 12:10 1.52 1.26 04:40 0.062 12:10 0.233 0.146 0.146 -
01/24/2021 05:30 1.94 11:30 3.49 2.82 05:20 0.84 11:30 1.55 1.27 05:20 0.056 11:30 0.241 0.154 0.154 0.16
01/25/2021 04:45 1.86 20:45 3.44 2.74 04:45 0.78 20:45 1.56 1.25 04:45 0.049 20:45 0.237 0.143 0.143 0.04
01/26/2021 04:10 2.04 20:10 3.42 2.76 04:05 0.87 19:50 1.54 1.26 04:10 0.062 20:00 0.231 0.145 0.145 -
01/27/2021 03:50 1.88 18:20 3.34 2.72 03:50 0.78 18:15 1.54 1.24 03:50 0.050 18:20 0.225 0.139 0.139 0.14
01/28/2021 04:20 1.77 18:55 3.31 2.70 03:50 0.71 18:55 1.50 1.23 04:20 0.041 18:55 0.217 0.138 0.138 0.24
01/29/2021 03:40 1.91 19:45 3.38 2.70 03:30 0.83 19:35 1.53 1.24 03:35 0.054 19:45 0.227 0.138 0.138 0.03
01/30/2021 05:55 1.99 10:55 3.38 2.75 05:55 0.83 10:50 1.52 1.25 05:55 0.057 10:55 0.226 0.144 0.144 0.07
01/31/2021 04:20 1.99 14:05 3.46 2.82 03:45 0.82 12:10 1.60 1.26 03:50 0.057 11:25 0.240 0.152 0.152 0.12
02/01/2021 03:55 2.05 20:05 3.45 2.81 02:15 0.86 18:55 1.55 1.26 04:00 0.062 20:05 0.238 0.149 0.149 0.82
02/02/2021 05:05 1.97 08:25 3.41 2.78 04:05 0.85 08:20 1.55 1.25 05:00 0.058 08:25 0.234 0.144 0.144 0.31
02/03/2021 03:45 1.97 19:45 3.48 2.77 03:45 0.81 20:45 1.54 1.24 03:45 0.055 19:40 0.234 0.144 0.144 0.06
02/04/2021 04:10 1.96 18:40 3.35 2.76 03:30 0.84 14:20 1.50 1.24 04:05 0.057 14:20 0.219 0.142 0.142 0.07
02/05/2021 04:15 1.89 17:30 3.15 2.72 04:10 0.75 17:30 1.46 1.20 04:15 0.048 17:30 0.196 0.135 0.135 0.01
02/06/2021 04:35 1.89 11:40 3.57 2.76 04:20 0.78 11:30 1.60 1.23 04:35 0.050 11:40 0.255 0.144 0.144 0.01
02/07/2021 04:55 1.88 13:50 3.50 2.80 04:45 0.81 12:10 1.59 1.26 04:55 0.051 12:10 0.242 0.152 0.152 -
02/08/2021 04:30 1.88 19:10 3.40 2.74 04:25 0.82 21:05 1.52 1.23 04:30 0.052 19:10 0.226 0.141 0.141 -
02/09/2021 05:05 1.87 19:50 3.42 2.73 04:55 0.81 19:15 1.53 1.24 05:00 0.051 19:50 0.228 0.140 0.140 -
02/10/2021 04:45 1.83 20:10 3.34 2.70 04:05 0.77 20:10 1.52 1.22 04:05 0.047 20:10 0.222 0.137 0.137 -
02/11/2021 04:10 1.88 20:25 3.32 2.70 03:40 0.78 20:30 1.51 1.22 04:20 0.050 20:30 0.219 0.137 0.137 -
02/12/2021 03:35 1.94 18:00 3.24 2.73 03:35 0.82 17:55 1.48 1.25 03:35 0.055 18:00 0.207 0.141 0.141 -
02/13/2021 05:30 1.91 14:25 3.45 2.78 05:30 0.82 14:20 1.56 1.26 05:30 0.053 14:25 0.238 0.148 0.148 0.08
02/14/2021 04:20 2.04 12:10 3.53 2.86 04:15 0.88 11:20 1.63 1.29 04:15 0.063 11:20 0.255 0.158 0.158 0.71
02/15/2021 04:50 2.23 14:10 3.87 3.04 05:00 0.98 10:50 1.64 1.28 05:00 0.079 12:40 0.275 0.169 0.169 0.78
02/16/2021 03:50 2.13 19:05 3.32 2.78 03:50 0.93 20:35 1.55 1.24 03:50 0.071 19:05 0.211 0.143 0.143 0.07
02/17/2021 03:45 2.07 20:15 3.41 2.74 04:15 0.90 20:10 1.56 1.25 04:15 0.066 20:15 0.233 0.141 0.141 -
02/18/2021 05:00 1.92 21:15 3.23 2.74 05:00 0.81 16:55 1.48 1.25 05:00 0.053 21:20 0.204 0.141 0.141 0.09
02/19/2021 04:25 2.00 19:10 3.35 2.70 04:15 0.88 19:00 1.53 1.23 04:25 0.061 19:00 0.223 0.136 0.136 0.17
02/20/2021 05:00 1.82 12:45 3.32 2.73 04:55 0.77 18:25 1.55 1.25 05:00 0.046 13:20 0.217 0.144 0.144 0.07
02/21/2021 05:30 1.85 23:40 3.84 2.81 05:05 0.80 13:20 1.56 1.26 05:20 0.050 12:35 0.233 0.152 0.152 0.42
02/22/2021 04:45 2.18 13:20 5.10 3.34 13:10 0.83 19:35 1.36 1.14 04:45 0.076 19:40 0.246 0.166 0.166 0.98
02/23/2021 04:50 1.96 21:45 3.78 2.76 03:10 0.84 20:50 1.53 1.23 04:50 0.057 20:50 0.221 0.141 0.141 0.27
02/24/2021 04:10 1.85 20:20 3.53 2.73 04:35 0.79 20:20 1.65 1.24 04:35 0.049 20:20 0.260 0.141 0.141 -
02/25/2021 03:30 1.86 18:00 3.38 2.72 03:45 0.80 18:00 1.52 1.24 03:50 0.050 18:00 0.226 0.139 0.139 0.18
02/26/2021 04:00 1.87 16:20 3.16 2.70 04:00 0.81 16:40 1.45 1.24 04:00 0.051 16:20 0.194 0.137 0.137 0.10
02/27/2021 04:25 1.86 11:00 3.45 2.71 05:45 0.76 10:25 1.56 1.23 04:25 0.048 10:55 0.235 0.140 0.140 0.02
02/28/2021 04:30 1.94 11:20 3.47 2.78 04:30 0.83 11:20 1.58 1.27 04:30 0.055 11:20 0.244 0.151 0.151 0.02
03/01/2021 04:00 1.78 20:30 3.35 2.68 03:50 0.77 19:50 1.52 1.23 04:00 0.045 20:30 0.220 0.137 0.137 -
03/02/2021 03:55 1.87 20:50 3.33 2.70 03:45 0.77 21:50 1.54 1.23 03:50 0.049 20:50 0.220 0.137 0.137 -
03/03/2021 03:15 1.88 21:10 3.45 2.69 03:15 0.79 21:05 1.52 1.24 03:15 0.050 21:10 0.233 0.137 0.137 -
03/04/2021 04:35 1.81 20:35 3.36 2.69 04:20 0.79 20:25 1.49 1.23 04:35 0.047 20:30 0.218 0.137 0.137 0.20
03/05/2021 06:00 2.08 13:30 3.14 2.71 03:00 0.91 13:30 1.43 1.23 03:20 0.067 13:30 0.191 0.136 0.136 0.05
03/06/2021 05:25 2.00 12:15 3.37 2.76 03:50 0.87 20:05 1.50 1.25 03:50 0.061 12:10 0.220 0.144 0.144 -
03/07/2021 05:30 1.96 11:15 3.55 2.79 05:30 0.79 10:45 1.59 1.25 05:30 0.053 11:15 0.250 0.149 0.149 0.04
03/08/2021 04:15 1.98 20:05 3.28 2.75 04:15 0.82 19:50 1.46 1.21 04:15 0.056 20:05 0.207 0.139 0.139 -
03/09/2021 04:30 1.91 21:25 3.37 2.73 04:30 0.76 21:15 1.50 1.21 04:30 0.050 21:25 0.221 0.137 0.137 0.01
03/10/2021 04:35 1.87 20:55 3.38 2.72 04:30 0.75 21:00 1.48 1.20 04:35 0.047 20:55 0.219 0.135 0.135 -
03/11/2021 03:30 1.86 19:40 3.40 2.73 03:25 0.74 19:25 1.50 1.20 03:30 0.046 19:45 0.225 0.137 0.137 -
Page 690 of 1163
170
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/12/2021 04:30 1.90 19:05 3.20 2.71 04:25 0.74 17:50 1.43 1.20 04:25 0.048 19:05 0.195 0.134 0.134 -
03/13/2021 04:05 1.82 11:05 3.42 2.72 04:00 0.76 10:20 1.55 1.22 04:00 0.046 10:20 0.230 0.140 0.140 -
03/14/2021 04:35 1.82 20:25 3.44 2.75 04:30 0.76 20:20 1.54 1.23 04:30 0.046 20:25 0.235 0.145 0.145 0.30
03/15/2021 03:55 1.82 20:05 3.36 2.71 03:35 0.75 20:05 1.52 1.22 03:50 0.046 20:05 0.223 0.137 0.137 -
03/16/2021 02:30 1.83 21:10 3.29 2.69 02:25 0.77 19:45 1.52 1.23 02:25 0.047 21:05 0.213 0.137 0.137 -
03/17/2021 03:40 1.92 20:05 3.33 2.70 02:55 0.84 20:00 1.53 1.24 03:40 0.055 20:05 0.223 0.138 0.138 -
03/18/2021 03:05 1.76 20:40 3.29 2.68 03:05 0.75 20:20 1.56 1.23 03:05 0.043 20:20 0.218 0.137 0.137 0.11
03/19/2021 04:00 1.86 18:15 3.27 2.68 04:05 0.79 18:10 1.49 1.23 04:05 0.049 18:15 0.212 0.136 0.136 0.03
03/20/2021 03:55 1.81 10:10 3.38 2.73 03:50 0.78 10:20 1.62 1.25 03:55 0.046 10:20 0.240 0.143 0.143 0.17
03/21/2021 04:10 1.79 12:45 3.38 2.73 04:05 0.74 10:50 1.55 1.23 04:10 0.044 10:55 0.229 0.143 0.143 0.07
03/22/2021 02:45 1.96 14:20 3.31 2.72 02:20 0.84 14:20 1.51 1.24 02:40 0.057 14:20 0.217 0.140 0.140 0.11
03/23/2021 02:50 1.83 20:40 3.32 2.71 02:50 0.76 18:55 1.51 1.24 02:50 0.046 20:40 0.218 0.139 0.139 -
03/24/2021 02:55 1.87 20:30 3.58 2.75 02:50 0.80 20:25 1.71 1.26 02:55 0.050 20:30 0.275 0.144 0.144 0.34
03/25/2021 03:00 1.88 10:25 4.10 2.76 03:00 0.81 10:25 1.84 1.26 03:00 0.051 10:25 0.360 0.145 0.145 0.27
03/26/2021 03:20 1.98 19:10 3.14 2.68 03:10 0.83 19:15 1.50 1.23 03:15 0.057 19:15 0.199 0.135 0.135 -
03/27/2021 04:40 1.90 10:00 3.39 2.74 04:40 0.79 10:00 1.54 1.24 04:40 0.051 10:00 0.230 0.143 0.143 -
03/28/2021 04:10 1.90 15:05 3.53 2.80 04:05 0.81 14:45 1.57 1.26 04:15 0.052 15:20 0.248 0.152 0.152 0.37
03/29/2021 03:05 1.87 20:15 3.35 2.70 01:35 0.80 20:20 1.55 1.22 03:10 0.050 20:15 0.225 0.138 0.138 -
03/30/2021 02:35 1.85 20:25 3.29 2.69 02:45 0.75 20:25 1.49 1.22 02:45 0.046 20:25 0.213 0.136 0.136 -
03/31/2021 03:55 1.92 10:00 3.30 2.74 03:55 0.79 19:30 1.49 1.24 03:55 0.052 10:00 0.212 0.141 0.141 -
04/01/2021 02:50 1.91 19:45 3.27 2.72 03:25 0.82 18:45 1.51 1.23 03:25 0.053 19:45 0.209 0.138 0.138 -
04/02/2021 03:20 1.91 19:00 3.32 2.74 03:20 0.80 18:55 1.49 1.25 03:20 0.052 19:00 0.216 0.142 0.142 -
04/03/2021 03:10 1.84 11:45 3.43 2.70 03:15 0.77 11:45 1.59 1.22 03:10 0.048 11:45 0.242 0.138 0.138 -
04/04/2021 04:35 1.77 10:45 3.49 2.77 04:35 0.73 10:40 1.57 1.25 04:35 0.042 10:40 0.244 0.148 0.148 -
04/05/2021 02:05 1.91 19:55 3.43 2.76 02:00 0.79 12:05 1.56 1.25 02:05 0.051 12:05 0.236 0.145 0.145 -
04/06/2021 03:25 1.80 19:35 3.40 2.68 03:20 0.77 19:30 1.55 1.21 03:20 0.046 19:30 0.232 0.135 0.135 -
04/07/2021 02:05 1.96 19:45 3.24 2.67 02:05 0.82 17:45 1.46 1.21 02:00 0.056 19:45 0.205 0.132 0.132 0.22
04/08/2021 03:20 1.84 13:10 3.27 2.69 03:20 0.76 13:10 1.49 1.21 03:20 0.047 13:10 0.211 0.134 0.134 -
04/09/2021 03:55 1.90 19:10 3.25 2.71 03:20 0.82 18:40 1.49 1.24 04:00 0.053 18:45 0.207 0.138 0.138 0.03
04/10/2021 03:50 1.92 10:30 3.41 2.76 03:30 0.84 10:35 1.51 1.25 03:45 0.055 10:35 0.226 0.144 0.144 0.02
04/11/2021 04:35 1.89 09:55 3.50 2.83 04:15 0.79 09:50 1.62 1.27 04:45 0.050 09:50 0.252 0.154 0.154 -
04/12/2021 03:05 2.05 20:30 3.46 2.77 03:00 0.87 20:15 1.57 1.25 03:05 0.062 20:30 0.239 0.144 0.144 -
04/13/2021 03:20 1.88 20:10 3.45 2.76 03:20 0.79 20:10 1.55 1.25 03:20 0.050 20:10 0.237 0.144 0.144 -
04/14/2021 03:55 1.90 21:20 3.32 2.74 03:55 0.81 21:20 1.51 1.25 03:55 0.052 21:20 0.219 0.142 0.141 -
09/22/2020 02:55 1.96 19:35 3.42 2.75 02:55 0.89 20:20 1.57 1.29 02:55 0.060 19:35 0.236 0.146 0.146 -
09/23/2020 04:05 1.89 19:30 3.52 2.80 02:05 0.88 19:30 1.61 1.32 03:45 0.057 19:30 0.254 0.155 0.155 -
09/24/2020 04:00 1.95 20:05 3.34 2.73 02:55 0.92 15:35 1.55 1.31 02:45 0.062 19:55 0.217 0.148 0.148 -
09/25/2020 03:30 1.75 16:50 3.41 2.80 03:35 0.79 20:20 1.52 1.27 03:35 0.045 19:45 0.223 0.150 0.150 -
09/26/2020 03:40 2.01 11:20 3.52 2.77 03:40 0.89 11:20 1.61 1.30 03:40 0.063 11:20 0.253 0.150 0.150 -
09/27/2020 04:15 1.79 11:50 3.54 2.74 04:00 0.85 11:20 1.60 1.29 04:15 0.050 11:50 0.254 0.150 0.150 -
09/28/2020 04:00 1.81 20:40 3.38 2.73 04:05 0.83 18:40 1.61 1.31 04:00 0.050 20:35 0.231 0.149 0.149 -
09/29/2020 04:00 1.84 19:45 3.33 2.68 02:30 0.84 19:55 1.57 1.30 03:45 0.053 19:55 0.228 0.144 0.144 -
09/30/2020 03:25 1.91 19:55 3.42 2.70 03:00 0.88 20:00 1.61 1.30 03:25 0.057 19:55 0.242 0.145 0.145 -
10/01/2020 03:25 1.88 19:40 3.22 2.67 03:20 0.90 19:10 1.54 1.29 03:20 0.057 19:10 0.211 0.140 0.140 -
10/02/2020 03:20 1.84 10:40 3.75 2.64 03:20 0.83 10:40 1.76 1.26 03:20 0.051 10:40 0.304 0.136 0.136 -
10/03/2020 04:15 1.95 10:55 3.38 2.74 04:15 0.88 10:55 1.56 1.29 04:10 0.059 10:55 0.232 0.147 0.147 0.01
10/04/2020 04:30 1.87 10:35 3.37 2.75 04:20 0.82 13:30 1.58 1.28 04:20 0.052 13:35 0.228 0.149 0.149 0.01
10/05/2020 04:00 1.85 19:20 3.35 2.70 03:50 0.85 19:25 1.58 1.28 04:05 0.052 19:20 0.231 0.144 0.144 -
10/06/2020 03:15 1.96 19:25 3.34 2.74 03:20 0.88 17:15 1.55 1.30 03:20 0.059 17:20 0.224 0.148 0.148 -
10/07/2020 04:05 1.83 19:15 3.17 2.65 04:10 0.81 19:20 1.50 1.26 04:10 0.049 19:50 0.202 0.137 0.137 -
10/08/2020 04:00 1.82 18:50 3.31 2.71 04:00 0.81 19:55 1.54 1.28 04:00 0.049 18:50 0.220 0.144 0.144 -
10/09/2020 03:50 1.89 19:05 3.24 2.73 03:55 0.85 14:00 1.55 1.29 03:50 0.055 19:05 0.210 0.146 0.146 0.64
10/10/2020 04:25 2.09 13:10 3.31 2.85 04:20 0.98 11:40 1.52 1.33 04:20 0.073 11:40 0.217 0.158 0.158 1.04
10/11/2020 04:45 2.05 12:40 3.52 2.86 03:55 0.90 12:40 1.60 1.30 04:50 0.064 12:40 0.252 0.160 0.160 0.53
10/12/2020 03:25 1.82 19:05 3.41 2.74 03:20 0.78 15:25 1.61 1.28 03:20 0.047 19:05 0.232 0.147 0.147 -
10/13/2020 02:20 2.07 07:30 4.28 2.85 02:15 0.91 07:45 1.71 1.29 02:20 0.066 07:35 0.346 0.155 0.155 0.61
10/14/2020 04:20 1.97 19:10 3.45 2.72 04:20 0.86 18:45 1.55 1.25 04:20 0.059 18:50 0.235 0.141 0.141 -
10/15/2020 03:10 1.99 19:00 3.38 2.73 03:10 0.89 18:55 1.56 1.29 03:10 0.062 19:00 0.231 0.146 0.146 -
10/16/2020 03:15 1.91 18:15 3.18 2.69 03:15 0.85 19:50 1.47 1.25 03:15 0.055 18:20 0.196 0.138 0.138 -
10/17/2020 04:45 1.81 11:35 3.35 2.71 03:35 0.82 11:30 1.55 1.25 04:45 0.049 11:35 0.228 0.140 0.140 0.01
10/18/2020 04:30 1.79 12:15 3.40 2.76 04:30 0.79 19:35 1.54 1.26 04:30 0.047 12:15 0.229 0.148 0.148 0.03
10/19/2020 03:55 1.87 20:00 3.48 2.73 03:55 0.83 20:00 1.56 1.26 03:50 0.053 20:00 0.241 0.143 0.143 0.05
10/20/2020 02:20 1.92 20:00 3.43 2.75 02:15 0.84 19:35 1.54 1.27 02:20 0.055 20:00 0.233 0.146 0.146 -
10/21/2020 02:20 2.00 18:25 3.46 2.73 02:10 0.91 18:20 1.59 1.28 02:15 0.063 18:25 0.245 0.144 0.144 0.01
10/22/2020 03:45 1.91 20:25 3.31 2.70 03:45 0.89 21:05 1.54 1.29 03:45 0.058 20:25 0.220 0.143 0.143 -
10/23/2020 03:10 1.99 19:55 3.24 2.68 03:00 0.89 19:55 1.51 1.27 03:00 0.063 19:55 0.212 0.139 0.139 0.20
10/24/2020 04:25 1.92 10:05 3.43 2.71 04:35 0.87 10:05 1.51 1.26 04:25 0.058 10:05 0.230 0.143 0.143 0.02
10/25/2020 04:50 1.95 11:40 3.40 2.76 04:45 0.86 09:45 1.57 1.28 04:45 0.058 11:40 0.235 0.150 0.150 -
10/26/2020 02:25 1.75 19:15 3.35 2.69 02:20 0.84 19:15 1.59 1.27 02:20 0.048 19:15 0.234 0.143 0.143 -
10/27/2020 03:10 1.88 19:45 3.44 2.73 03:00 0.93 17:10 1.56 1.26 03:05 0.059 19:45 0.233 0.143 0.143 -
10/28/2020 03:35 1.79 19:05 3.42 2.74 02:50 0.79 19:05 1.57 1.26 03:40 0.046 19:05 0.237 0.144 0.144 -
10/29/2020 02:50 1.91 20:35 3.36 2.78 03:20 0.88 20:00 1.57 1.30 03:20 0.057 20:00 0.228 0.151 0.151 -
10/30/2020 02:30 1.92 15:35 3.22 2.74 02:30 0.92 19:45 1.56 1.31 02:30 0.060 15:30 0.206 0.148 0.148 0.10
10/31/2020 04:40 1.87 10:15 3.42 2.74 04:45 0.89 10:20 1.61 1.29 04:40 0.056 10:20 0.242 0.149 0.149 -
Page 691 of 1163
171
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain
(in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/01/2020 04:15 1.73 11:25 3.39 2.76 04:10 0.81 13:25 1.60 1.29 04:10 0.046 11:05 0.236 0.154 0.154 -
11/02/2020 04:00 1.79 20:20 3.43 2.72 04:00 0.85 19:35 1.59 1.29 04:00 0.050 19:40 0.240 0.146 0.146 -
11/03/2020 03:25 1.85 10:45 3.37 2.80 03:35 0.86 10:15 1.56 1.30 03:35 0.053 10:15 0.228 0.154 0.154 0.83
11/04/2020 04:10 1.83 19:40 3.29 2.70 04:10 0.84 19:30 1.50 1.26 04:10 0.051 19:40 0.214 0.141 0.141 0.09
11/05/2020 03:55 2.07 19:55 3.25 2.75 03:55 0.98 19:05 1.53 1.30 04:00 0.071 19:55 0.215 0.147 0.147 0.34
11/06/2020 04:50 1.98 18:50 3.23 2.69 04:25 1.02 17:20 1.49 1.31 04:45 0.071 17:25 0.207 0.143 0.143 0.10
11/07/2020 05:40 1.92 13:25 3.29 2.73 05:40 0.92 13:15 1.49 1.29 05:40 0.061 13:15 0.211 0.146 0.146 0.07
11/08/2020 04:35 1.94 12:10 3.43 2.78 04:35 0.93 10:45 1.59 1.31 04:35 0.062 12:20 0.239 0.154 0.154 0.01
11/09/2020 03:45 1.91 19:45 3.18 2.67 03:40 0.87 18:30 1.50 1.26 03:45 0.057 18:30 0.203 0.138 0.138 0.04
11/10/2020 04:20 1.67 20:00 3.35 2.66 03:35 0.75 19:45 1.53 1.24 04:20 0.041 20:00 0.224 0.138 0.138 0.03
11/11/2020 04:20 1.88 19:35 3.29 2.67 04:35 0.86 19:35 1.50 1.26 04:20 0.055 19:35 0.214 0.138 0.138 -
11/12/2020 04:30 1.82 18:45 3.27 2.66 04:30 0.83 18:40 1.53 1.27 04:30 0.050 18:45 0.217 0.139 0.139 0.16
11/13/2020 03:10 1.98 19:40 3.22 2.67 02:45 0.94 19:40 1.49 1.28 03:10 0.064 19:40 0.206 0.139 0.139 0.38
11/14/2020 05:50 1.75 18:55 3.46 2.73 05:50 0.81 18:50 1.61 1.28 05:50 0.046 18:50 0.247 0.147 0.147 0.47
11/15/2020 05:45 1.85 10:55 3.46 2.81 05:35 0.84 10:40 1.53 1.29 05:50 0.052 10:45 0.234 0.153 0.153 0.19
11/16/2020 04:25 1.90 17:50 3.40 2.77 04:25 0.88 17:50 1.56 1.30 04:25 0.057 17:50 0.234 0.150 0.150 0.31
11/17/2020 04:30 1.90 19:55 3.57 2.72 04:30 0.88 19:55 1.64 1.27 04:30 0.057 19:55 0.264 0.144 0.144 0.20
11/18/2020 04:25 1.84 19:00 3.32 2.72 04:30 0.84 18:20 1.49 1.26 04:30 0.051 19:00 0.214 0.143 0.143 0.30
11/19/2020 03:15 1.92 20:05 3.32 2.73 02:15 0.87 17:45 1.52 1.27 03:15 0.058 17:45 0.216 0.144 0.144 0.50
11/20/2020 04:15 1.87 20:15 3.17 2.69 03:25 0.84 10:45 1.46 1.25 03:25 0.053 18:05 0.194 0.139 0.139 0.01
11/21/2020 04:45 1.97 11:15 3.33 2.74 04:35 0.91 11:20 1.49 1.28 04:35 0.062 11:15 0.216 0.145 0.145 -
11/22/2020 05:20 1.88 11:40 3.43 2.81 05:20 0.84 11:40 1.56 1.28 05:20 0.053 11:40 0.236 0.154 0.154 0.21
11/23/2020 05:05 1.90 19:00 3.36 2.72 05:00 0.87 19:00 1.52 1.26 05:00 0.057 19:00 0.225 0.142 0.142 0.14
11/24/2020 05:00 1.84 16:25 3.41 2.75 04:55 0.78 20:20 1.61 1.25 04:55 0.048 16:25 0.231 0.143 0.143 0.21
11/25/2020 03:20 1.94 14:45 3.44 2.76 03:15 0.82 14:45 1.51 1.26 03:15 0.055 14:45 0.230 0.145 0.145 0.05
11/26/2020 06:35 2.05 11:55 3.69 2.89 06:45 0.89 11:30 1.70 1.32 06:45 0.064 11:50 0.283 0.165 0.165 0.02
11/27/2020 05:05 1.90 12:20 3.38 2.68 05:05 0.82 12:35 1.48 1.22 05:05 0.053 12:15 0.217 0.136 0.136 -
11/28/2020 05:55 1.80 12:55 3.49 2.78 05:55 0.78 12:45 1.55 1.26 05:55 0.046 12:55 0.240 0.149 0.149 0.05
11/29/2020 05:15 1.86 12:55 3.53 2.77 06:05 0.78 12:35 1.60 1.25 05:15 0.050 12:35 0.247 0.148 0.148 -
11/30/2020 03:20 1.94 18:45 3.36 2.77 03:10 0.85 19:10 1.52 1.28 03:10 0.056 18:50 0.220 0.147 0.147 0.36
12/01/2020 05:00 1.97 19:55 3.28 2.73 05:00 0.85 19:20 1.52 1.25 05:00 0.058 19:20 0.212 0.141 0.141 -
12/02/2020 03:10 1.96 20:50 3.48 2.74 02:55 0.86 20:45 1.57 1.26 03:00 0.058 20:55 0.244 0.145 0.145 0.01
12/03/2020 04:20 1.88 20:45 3.37 2.74 04:20 0.80 20:40 1.53 1.26 04:20 0.051 20:45 0.226 0.143 0.143 -
12/04/2020 04:30 1.97 19:05 3.26 2.70 04:25 0.85 19:05 1.48 1.25 04:25 0.058 19:05 0.208 0.139 0.139 -
12/05/2020 04:10 1.97 10:55 3.44 2.73 04:25 0.83 10:55 1.55 1.25 04:25 0.057 10:55 0.237 0.144 0.144 0.03
12/06/2020 05:10 1.84 18:25 3.52 2.83 05:05 0.81 18:00 1.57 1.28 05:05 0.050 18:25 0.245 0.156 0.156 0.03
12/07/2020 04:40 1.95 18:45 3.29 2.72 04:35 0.83 18:15 1.50 1.25 04:35 0.056 18:50 0.215 0.141 0.141 -
12/08/2020 04:55 1.96 17:40 3.57 2.88 04:55 0.85 17:50 1.59 1.30 04:55 0.057 17:50 0.254 0.161 0.161 0.87
12/09/2020 05:05 2.05 13:35 3.39 2.78 05:05 0.89 19:20 1.50 1.27 05:05 0.064 13:35 0.221 0.146 0.146 0.17
12/10/2020 04:40 1.86 18:25 3.27 2.72 03:55 0.81 20:55 1.48 1.25 04:40 0.050 18:25 0.208 0.141 0.141 0.07
12/11/2020 04:30 2.04 18:05 3.29 2.76 04:30 0.89 10:00 1.49 1.27 04:30 0.064 18:10 0.211 0.145 0.145 0.02
12/12/2020 04:30 1.85 12:30 3.42 2.74 04:35 0.77 12:20 1.53 1.24 04:30 0.048 12:30 0.230 0.143 0.143 0.01
12/13/2020 06:00 1.99 11:20 3.56 2.80 04:55 0.82 12:20 1.67 1.27 04:55 0.058 12:20 0.262 0.151 0.151 0.24
12/14/2020 04:50 1.95 18:20 3.37 2.74 03:35 0.80 18:15 1.52 1.24 03:35 0.055 18:20 0.225 0.141 0.141 0.05
12/15/2020 04:30 1.89 19:15 3.43 2.77 04:30 0.78 17:50 1.54 1.25 04:30 0.050 19:15 0.230 0.146 0.146 0.58
12/16/2020 05:00 1.98 11:20 3.30 2.77 04:05 0.86 11:20 1.49 1.25 04:05 0.060 11:20 0.214 0.145 0.145 0.39
12/17/2020 04:15 1.91 18:15 3.34 2.75 04:05 0.82 17:20 1.44 1.23 04:15 0.053 18:15 0.210 0.140 0.140 0.08
12/18/2020 05:05 1.98 20:30 3.38 2.78 02:55 0.85 13:00 1.42 1.23 05:05 0.059 20:30 0.202 0.142 0.142 0.25
12/19/2020 06:15 1.93 11:45 3.38 2.76 06:05 0.81 11:50 1.49 1.25 06:15 0.053 11:45 0.219 0.145 0.145 0.37
12/20/2020 05:05 1.89 12:10 3.48 2.79 05:05 0.81 13:05 1.60 1.26 05:00 0.052 11:40 0.239 0.148 0.148 0.04
12/21/2020 04:05 2.16 18:55 4.18 2.98 04:00 0.96 18:30 1.66 1.24 04:05 0.074 18:30 0.295 0.157 0.157 1.07
12/22/2020 04:30 1.90 18:05 3.19 2.75 04:25 0.81 18:10 1.48 1.23 04:25 0.052 18:10 0.201 0.141 0.141 -
12/23/2020 04:10 2.08 20:40 3.26 2.73 03:55 0.92 21:05 1.52 1.25 03:55 0.068 21:05 0.209 0.140 0.140 -
12/24/2020 04:20 1.89 14:40 3.50 2.83 04:30 0.81 14:30 1.58 1.28 04:25 0.052 14:30 0.244 0.155 0.155 -
12/25/2020 06:00 1.80 12:45 3.40 2.70 05:55 0.76 12:35 1.53 1.23 06:00 0.045 12:45 0.225 0.140 0.140 0.49
12/26/2020 06:05 1.91 12:00 3.44 2.76 06:15 0.82 11:50 1.53 1.24 06:15 0.053 11:55 0.232 0.144 0.144 0.02
12/27/2020 04:20 1.84 12:10 3.58 2.81 04:25 0.79 12:40 1.50 1.24 04:25 0.048 12:40 0.238 0.149 0.149 0.13
12/28/2020 04:30 1.86 20:30 3.59 2.77 04:25 0.80 18:20 1.52 1.24 04:30 0.050 20:30 0.242 0.146 0.146 -
12/29/2020 03:50 1.99 20:45 3.46 2.75 03:00 0.88 20:40 1.54 1.25 03:15 0.061 20:45 0.237 0.143 0.143 0.14
12/30/2020 02:00 2.21 18:15 3.38 2.86 02:00 0.96 21:35 1.48 1.25 02:00 0.077 21:35 0.216 0.149 0.149 0.78
12/31/2020 04:55 2.12 17:30 3.63 2.90 04:50 0.94 17:55 1.49 1.24 04:50 0.071 17:55 0.241 0.153 0.153 0.17
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 29.683 30.65
Average 2.77 1.25 0.145
Page 692 of 1163
172
Page 693 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Hydrograph Report
RainGage_RG41Y
Page 694 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
RainGage_RG41YRain Gauge: Rain Gauge (0 H x 0 W), Silt0.00
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain (in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 - - - - - - - - - - - - - - - - 0.48
01/02/2021 - - - - - - - - - - - - - - - - 1.64
01/03/2021 - - - - - - - - - - - - - - - - 0.59
01/04/2021 - - - - - - - - - - - - - - - - 0.45
01/05/2021 - - - - - - - - - - - - - - - - 0.47
01/06/2021 - - - - - - - - - - - - - - - - 0.19
01/07/2021 - - - - - - - - - - - - - - - - 0.01
01/08/2021 - - - - - - - - - - - - - - - - 0.23
01/09/2021 - - - - - - - - - - - - - - - - 0.01
01/10/2021 - - - - - - - - - - - - - - - - 0.07
01/11/2021 - - - - - - - - - - - - - - - - 0.99
01/12/2021 - - - - - - - - - - - - - - - - 2.04
01/13/2021 - - - - - - - - - - - - - - - - 0.10
01/14/2021 - - - - - - - - - - - - - - - - 0.01
01/15/2021 - - - - - - - - - - - - - - - - 0.09
01/16/2021 - - - - - - - - - - - - - - - - -
01/17/2021 - - - - - - - - - - - - - - - - 0.08
01/18/2021 - - - - - - - - - - - - - - - - 0.01
01/19/2021 - - - - - - - - - - - - - - - - -
01/20/2021 - - - - - - - - - - - - - - - - -
01/21/2021 - - - - - - - - - - - - - - - - 0.09
01/22/2021 - - - - - - - - - - - - - - - - -
01/23/2021 - - - - - - - - - - - - - - - - -
01/24/2021 - - - - - - - - - - - - - - - - 0.14
01/25/2021 - - - - - - - - - - - - - - - - 0.01
01/26/2021 - - - - - - - - - - - - - - - - -
01/27/2021 - - - - - - - - - - - - - - - - 0.16
01/28/2021 - - - - - - - - - - - - - - - - 0.22
01/29/2021 - - - - - - - - - - - - - - - - 0.04
01/30/2021 - - - - - - - - - - - - - - - - 0.09
01/31/2021 - - - - - - - - - - - - - - - - 0.13
02/01/2021 - - - - - - - - - - - - - - - - 0.78
02/02/2021 - - - - - - - - - - - - - - - - 0.35
02/03/2021 - - - - - - - - - - - - - - - - 0.06
02/04/2021 - - - - - - - - - - - - - - - - 0.03
02/05/2021 - - - - - - - - - - - - - - - - 0.01
02/06/2021 - - - - - - - - - - - - - - - - -
02/07/2021 - - - - - - - - - - - - - - - - -
02/08/2021 - - - - - - - - - - - - - - - - -
02/09/2021 - - - - - - - - - - - - - - - - -
02/10/2021 - - - - - - - - - - - - - - - - -
02/11/2021 - - - - - - - - - - - - - - - - -
02/12/2021 - - - - - - - - - - - - - - - - -
02/13/2021 - - - - - - - - - - - - - - - - 0.09
02/14/2021 - - - - - - - - - - - - - - - - 0.68
02/15/2021 - - - - - - - - - - - - - - - - 0.65
02/16/2021 - - - - - - - - - - - - - - - - 0.04
02/17/2021 - - - - - - - - - - - - - - - - -
02/18/2021 - - - - - - - - - - - - - - - - 0.09
02/19/2021 - - - - - - - - - - - - - - - - 0.15
02/20/2021 - - - - - - - - - - - - - - - - 0.04
02/21/2021 - - - - - - - - - - - - - - - - 0.34
02/22/2021 - - - - - - - - - - - - - - - - 0.71
02/23/2021 - - - - - - - - - - - - - - - - 0.39
02/24/2021 - - - - - - - - - - - - - - - - 0.01
02/25/2021 - - - - - - - - - - - - - - - - 0.18
02/26/2021 - - - - - - - - - - - - - - - - 0.12
02/27/2021 - - - - - - - - - - - - - - - - 0.01
02/28/2021 - - - - - - - - - - - - - - - - 0.02
03/01/2021 - - - - - - - - - - - - - - - - -
03/02/2021 - - - - - - - - - - - - - - - - -
03/03/2021 - - - - - - - - - - - - - - - - -
03/04/2021 - - - - - - - - - - - - - - - - 0.22
03/05/2021 - - - - - - - - - - - - - - - - 0.03
03/06/2021 - - - - - - - - - - - - - - - - 0.01
03/07/2021 - - - - - - - - - - - - - - - - 0.08
03/08/2021 - - - - - - - - - - - - - - - - -
03/09/2021 - - - - - - - - - - - - - - - - 0.02
03/10/2021 - - - - - - - - - - - - - - - - 0.01
Page 695 of 1163
175
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain (in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/11/2021 - - - - - - - - - - - - - - - - -
03/12/2021 - - - - - - - - - - - - - - - - -
03/13/2021 - - - - - - - - - - - - - - - - -
03/14/2021 - - - - - - - - - - - - - - - - 0.23
03/15/2021 - - - - - - - - - - - - - - - - 0.02
03/16/2021 - - - - - - - - - - - - - - - - -
03/17/2021 - - - - - - - - - - - - - - - - -
03/18/2021 - - - - - - - - - - - - - - - - 0.10
03/19/2021 - - - - - - - - - - - - - - - - 0.03
03/20/2021 - - - - - - - - - - - - - - - - 0.18
03/21/2021 - - - - - - - - - - - - - - - - 0.06
03/22/2021 - - - - - - - - - - - - - - - - 0.10
03/23/2021 - - - - - - - - - - - - - - - - -
03/24/2021 - - - - - - - - - - - - - - - - 0.33
03/25/2021 - - - - - - - - - - - - - - - - 0.36
03/26/2021 - - - - - - - - - - - - - - - - -
03/27/2021 - - - - - - - - - - - - - - - - -
03/28/2021 - - - - - - - - - - - - - - - - 0.40
03/29/2021 - - - - - - - - - - - - - - - - -
03/30/2021 - - - - - - - - - - - - - - - - -
03/31/2021 - - - - - - - - - - - - - - - - -
04/01/2021 - - - - - - - - - - - - - - - - -
04/02/2021 - - - - - - - - - - - - - - - - -
04/03/2021 - - - - - - - - - - - - - - - - -
04/04/2021 - - - - - - - - - - - - - - - - -
04/05/2021 - - - - - - - - - - - - - - - - -
04/06/2021 - - - - - - - - - - - - - - - - -
04/07/2021 - - - - - - - - - - - - - - - - 0.09
04/08/2021 - - - - - - - - - - - - - - - - 0.10
04/09/2021 - - - - - - - - - - - - - - - - -
04/10/2021 - - - - - - - - - - - - - - - - 0.04
04/11/2021 - - - - - - - - - - - - - - - - -
04/12/2021 - - - - - - - - - - - - - - - - -
04/13/2021 - - - - - - - - - - - - - - - - -
04/14/2021 - - - - - - - - - - - - - - - - -
10/01/2020 - - - - - - - - - - - - - - - - -
10/02/2020 - - - - - - - - - - - - - - - - 0.01
10/03/2020 - - - - - - - - - - - - - - - - -
10/04/2020 - - - - - - - - - - - - - - - - 0.01
10/05/2020 - - - - - - - - - - - - - - - - -
10/06/2020 - - - - - - - - - - - - - - - - 0.01
10/07/2020 - - - - - - - - - - - - - - - - -
10/08/2020 - - - - - - - - - - - - - - - - -
10/09/2020 - - - - - - - - - - - - - - - - 0.35
10/10/2020 - - - - - - - - - - - - - - - - 1.47
10/11/2020 - - - - - - - - - - - - - - - - 0.55
10/12/2020 - - - - - - - - - - - - - - - - -
10/13/2020 - - - - - - - - - - - - - - - - 0.60
10/14/2020 - - - - - - - - - - - - - - - - -
10/15/2020 - - - - - - - - - - - - - - - - -
10/16/2020 - - - - - - - - - - - - - - - - -
10/17/2020 - - - - - - - - - - - - - - - - -
10/18/2020 - - - - - - - - - - - - - - - - 0.01
10/19/2020 - - - - - - - - - - - - - - - - 0.10
10/20/2020 - - - - - - - - - - - - - - - - -
10/21/2020 - - - - - - - - - - - - - - - - 0.04
10/22/2020 - - - - - - - - - - - - - - - - -
10/23/2020 - - - - - - - - - - - - - - - - 0.20
10/24/2020 - - - - - - - - - - - - - - - - 0.05
10/25/2020 - - - - - - - - - - - - - - - - -
10/26/2020 - - - - - - - - - - - - - - - - -
10/27/2020 - - - - - - - - - - - - - - - - -
10/28/2020 - - - - - - - - - - - - - - - - -
10/29/2020 - - - - - - - - - - - - - - - - -
10/30/2020 - - - - - - - - - - - - - - - - 0.04
10/31/2020 - - - - - - - - - - - - - - - - -
11/01/2020 - - - - - - - - - - - - - - - - -
11/02/2020 - - - - - - - - - - - - - - - - -
11/03/2020 - - - - - - - - - - - - - - - - 0.81
11/04/2020 - - - - - - - - - - - - - - - - 0.10
11/05/2020 - - - - - - - - - - - - - - - - 0.39
11/06/2020 - - - - - - - - - - - - - - - - 0.04
11/07/2020 - - - - - - - - - - - - - - - - 0.01
11/08/2020 - - - - - - - - - - - - - - - - -
11/09/2020 - - - - - - - - - - - - - - - - 0.07
Page 696 of 1163
176
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain (in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/10/2020 - - - - - - - - - - - - - - - - 0.04
11/11/2020 - - - - - - - - - - - - - - - - -
11/12/2020 - - - - - - - - - - - - - - - - 0.15
11/13/2020 - - - - - - - - - - - - - - - - 0.41
11/14/2020 - - - - - - - - - - - - - - - - 0.46
11/15/2020 - - - - - - - - - - - - - - - - 0.21
11/16/2020 - - - - - - - - - - - - - - - - 0.32
11/17/2020 - - - - - - - - - - - - - - - - 0.19
11/18/2020 - - - - - - - - - - - - - - - - 0.28
11/19/2020 - - - - - - - - - - - - - - - - 0.26
11/20/2020 - - - - - - - - - - - - - - - - 0.02
11/21/2020 - - - - - - - - - - - - - - - - -
11/22/2020 - - - - - - - - - - - - - - - - 0.22
11/23/2020 - - - - - - - - - - - - - - - - 0.16
11/24/2020 - - - - - - - - - - - - - - - - 0.17
11/25/2020 - - - - - - - - - - - - - - - - 0.02
11/26/2020 - - - - - - - - - - - - - - - - 0.01
11/27/2020 - - - - - - - - - - - - - - - - -
11/28/2020 - - - - - - - - - - - - - - - - 0.03
11/29/2020 - - - - - - - - - - - - - - - - 0.01
11/30/2020 - - - - - - - - - - - - - - - - 0.34
12/01/2020 - - - - - - - - - - - - - - - - -
12/02/2020 - - - - - - - - - - - - - - - - -
12/03/2020 - - - - - - - - - - - - - - - - -
12/04/2020 - - - - - - - - - - - - - - - - -
12/05/2020 - - - - - - - - - - - - - - - - 0.02
12/06/2020 - - - - - - - - - - - - - - - - 0.02
12/07/2020 - - - - - - - - - - - - - - - - -
12/08/2020 - - - - - - - - - - - - - - - - 0.71
12/09/2020 - - - - - - - - - - - - - - - - 0.22
12/10/2020 - - - - - - - - - - - - - - - - 0.04
12/11/2020 - - - - - - - - - - - - - - - - 0.01
12/12/2020 - - - - - - - - - - - - - - - - -
12/13/2020 - - - - - - - - - - - - - - - - 0.21
12/14/2020 - - - - - - - - - - - - - - - - 0.05
12/15/2020 - - - - - - - - - - - - - - - - 0.52
12/16/2020 - - - - - - - - - - - - - - - - 0.37
12/17/2020 - - - - - - - - - - - - - - - - 0.06
12/18/2020 - - - - - - - - - - - - - - - - 0.18
12/19/2020 - - - - - - - - - - - - - - - - 0.43
12/20/2020 - - - - - - - - - - - - - - - - 0.06
12/21/2020 - - - - - - - - - - - - - - - - 1.14
12/22/2020 - - - - - - - - - - - - - - - - -
12/23/2020 - - - - - - - - - - - - - - - - -
12/24/2020 - - - - - - - - - - - - - - - - 0.01
12/25/2020 - - - - - - - - - - - - - - - - 0.36
12/26/2020 - - - - - - - - - - - - - - - - 0.03
12/27/2020 - - - - - - - - - - - - - - - - 0.13
12/28/2020 - - - - - - - - - - - - - - - - 0.01
12/29/2020 - - - - - - - - - - - - - - - - 0.17
12/30/2020 - - - - - - - - - - - - - - - - 0.81
12/31/2020 - - - - - - - - - - - - - - - - 0.18
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 29.40
Average
Page 697 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Hydrograph Report
RainGage_RGAUB
Page 698 of 1163
4455 S. 134th Place
Tukwila, WA 98168
206-762-5070
www.adsenv.com
Daily Tabular Report
09/22/2020 00:00 - 04/14/2021 23:56
RainGage_RGAUBRain Gauge: Rain Gauge (0 H x 0 W), Silt0.00
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain (in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
01/01/2021 - - - - - - - - - - - - - - - - 0.48
01/02/2021 - - - - - - - - - - - - - - - - 1.40
01/03/2021 - - - - - - - - - - - - - - - - 0.51
01/04/2021 - - - - - - - - - - - - - - - - 0.40
01/05/2021 - - - - - - - - - - - - - - - - 0.41
01/06/2021 - - - - - - - - - - - - - - - - 0.22
01/07/2021 - - - - - - - - - - - - - - - - -
01/08/2021 - - - - - - - - - - - - - - - - 0.17
01/09/2021 - - - - - - - - - - - - - - - - -
01/10/2021 - - - - - - - - - - - - - - - - 0.03
01/11/2021 - - - - - - - - - - - - - - - - 1.02
01/12/2021 - - - - - - - - - - - - - - - - 1.87
01/13/2021 - - - - - - - - - - - - - - - - 0.11
01/14/2021 - - - - - - - - - - - - - - - - -
01/15/2021 - - - - - - - - - - - - - - - - 0.09
01/16/2021 - - - - - - - - - - - - - - - - -
01/17/2021 - - - - - - - - - - - - - - - - 0.07
01/18/2021 - - - - - - - - - - - - - - - - -
01/19/2021 - - - - - - - - - - - - - - - - -
01/20/2021 - - - - - - - - - - - - - - - - -
01/21/2021 - - - - - - - - - - - - - - - - 0.05
01/22/2021 - - - - - - - - - - - - - - - - -
01/23/2021 - - - - - - - - - - - - - - - - -
01/24/2021 - - - - - - - - - - - - - - - - 0.09
01/25/2021 - - - - - - - - - - - - - - - - 0.01
01/26/2021 - - - - - - - - - - - - - - - - -
01/27/2021 - - - - - - - - - - - - - - - - 0.08
01/28/2021 - - - - - - - - - - - - - - - - 0.18
01/29/2021 - - - - - - - - - - - - - - - - -
01/30/2021 - - - - - - - - - - - - - - - - 0.05
01/31/2021 - - - - - - - - - - - - - - - - 0.10
02/01/2021 - - - - - - - - - - - - - - - - 0.78
02/02/2021 - - - - - - - - - - - - - - - - 0.26
02/03/2021 - - - - - - - - - - - - - - - - 0.04
02/04/2021 - - - - - - - - - - - - - - - - 0.03
02/05/2021 - - - - - - - - - - - - - - - - 0.01
02/06/2021 - - - - - - - - - - - - - - - - -
02/07/2021 - - - - - - - - - - - - - - - - -
02/08/2021 - - - - - - - - - - - - - - - - -
02/09/2021 - - - - - - - - - - - - - - - - -
02/10/2021 - - - - - - - - - - - - - - - - -
02/11/2021 - - - - - - - - - - - - - - - - -
02/12/2021 - - - - - - - - - - - - - - - - 0.14
02/13/2021 - - - - - - - - - - - - - - - - 0.36
02/14/2021 - - - - - - - - - - - - - - - - 0.19
02/15/2021 - - - - - - - - - - - - - - - - 0.58
02/16/2021 - - - - - - - - - - - - - - - - 0.05
02/17/2021 - - - - - - - - - - - - - - - - -
02/18/2021 - - - - - - - - - - - - - - - - 0.04
02/19/2021 - - - - - - - - - - - - - - - - 0.10
02/20/2021 - - - - - - - - - - - - - - - - 0.02
02/21/2021 - - - - - - - - - - - - - - - - 0.37
02/22/2021 - - - - - - - - - - - - - - - - 0.94
02/23/2021 - - - - - - - - - - - - - - - - 0.20
02/24/2021 - - - - - - - - - - - - - - - - -
02/25/2021 - - - - - - - - - - - - - - - - 0.12
02/26/2021 - - - - - - - - - - - - - - - - 0.06
02/27/2021 - - - - - - - - - - - - - - - - -
02/28/2021 - - - - - - - - - - - - - - - - 0.01
03/01/2021 - - - - - - - - - - - - - - - - -
03/02/2021 - - - - - - - - - - - - - - - - -
03/03/2021 - - - - - - - - - - - - - - - - -
03/04/2021 - - - - - - - - - - - - - - - - 0.17
03/05/2021 - - - - - - - - - - - - - - - - 0.03
03/06/2021 - - - - - - - - - - - - - - - - -
03/07/2021 - - - - - - - - - - - - - - - - 0.02
03/08/2021 - - - - - - - - - - - - - - - - -
03/09/2021 - - - - - - - - - - - - - - - - 0.01
03/10/2021 - - - - - - - - - - - - - - - - -
Page 699 of 1163
179
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain (in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
03/11/2021 - - - - - - - - - - - - - - - - -
03/12/2021 - - - - - - - - - - - - - - - - -
03/13/2021 - - - - - - - - - - - - - - - - -
03/14/2021 - - - - - - - - - - - - - - - - 0.22
03/15/2021 - - - - - - - - - - - - - - - - -
03/16/2021 - - - - - - - - - - - - - - - - -
03/17/2021 - - - - - - - - - - - - - - - - -
03/18/2021 - - - - - - - - - - - - - - - - 0.12
03/19/2021 - - - - - - - - - - - - - - - - -
03/20/2021 - - - - - - - - - - - - - - - - 0.15
03/21/2021 - - - - - - - - - - - - - - - - 0.03
03/22/2021 - - - - - - - - - - - - - - - - 0.13
03/23/2021 - - - - - - - - - - - - - - - - -
03/24/2021 - - - - - - - - - - - - - - - - 0.21
03/25/2021 - - - - - - - - - - - - - - - - 0.35
03/26/2021 - - - - - - - - - - - - - - - - -
03/27/2021 - - - - - - - - - - - - - - - - -
03/28/2021 - - - - - - - - - - - - - - - - 0.34
03/29/2021 - - - - - - - - - - - - - - - - -
03/30/2021 - - - - - - - - - - - - - - - - -
03/31/2021 - - - - - - - - - - - - - - - - -
04/01/2021 - - - - - - - - - - - - - - - - -
04/02/2021 - - - - - - - - - - - - - - - - -
04/03/2021 - - - - - - - - - - - - - - - - -
04/04/2021 - - - - - - - - - - - - - - - - -
04/05/2021 - - - - - - - - - - - - - - - - -
04/06/2021 - - - - - - - - - - - - - - - - -
04/07/2021 - - - - - - - - - - - - - - - - 0.10
04/08/2021 - - - - - - - - - - - - - - - - 0.08
04/09/2021 - - - - - - - - - - - - - - - - -
04/10/2021 - - - - - - - - - - - - - - - - 0.03
04/11/2021 - - - - - - - - - - - - - - - - -
04/12/2021 - - - - - - - - - - - - - - - - -
04/13/2021 - - - - - - - - - - - - - - - - -
04/14/2021 - - - - - - - - - - - - - - - - -
10/01/2020 - - - - - - - - - - - - - - - - -
10/02/2020 - - - - - - - - - - - - - - - - -
10/03/2020 - - - - - - - - - - - - - - - - -
10/04/2020 - - - - - - - - - - - - - - - - -
10/05/2020 - - - - - - - - - - - - - - - - -
10/06/2020 - - - - - - - - - - - - - - - - -
10/07/2020 - - - - - - - - - - - - - - - - -
10/08/2020 - - - - - - - - - - - - - - - - -
10/09/2020 - - - - - - - - - - - - - - - - 0.30
10/10/2020 - - - - - - - - - - - - - - - - 1.22
10/11/2020 - - - - - - - - - - - - - - - - 0.46
10/12/2020 - - - - - - - - - - - - - - - - -
10/13/2020 - - - - - - - - - - - - - - - - 0.59
10/14/2020 - - - - - - - - - - - - - - - - -
10/15/2020 - - - - - - - - - - - - - - - - -
10/16/2020 - - - - - - - - - - - - - - - - -
10/17/2020 - - - - - - - - - - - - - - - - -
10/18/2020 - - - - - - - - - - - - - - - - 0.02
10/19/2020 - - - - - - - - - - - - - - - - 0.04
10/20/2020 - - - - - - - - - - - - - - - - -
10/21/2020 - - - - - - - - - - - - - - - - -
10/22/2020 - - - - - - - - - - - - - - - - -
10/23/2020 - - - - - - - - - - - - - - - - 0.17
10/24/2020 - - - - - - - - - - - - - - - - 0.01
10/25/2020 - - - - - - - - - - - - - - - - -
10/26/2020 - - - - - - - - - - - - - - - - -
10/27/2020 - - - - - - - - - - - - - - - - -
10/28/2020 - - - - - - - - - - - - - - - - -
10/29/2020 - - - - - - - - - - - - - - - - -
10/30/2020 - - - - - - - - - - - - - - - - 0.09
10/31/2020 - - - - - - - - - - - - - - - - -
11/01/2020 - - - - - - - - - - - - - - - - -
11/02/2020 - - - - - - - - - - - - - - - - -
11/03/2020 - - - - - - - - - - - - - - - - 0.79
11/04/2020 - - - - - - - - - - - - - - - - 0.06
11/05/2020 - - - - - - - - - - - - - - - - 0.29
11/06/2020 - - - - - - - - - - - - - - - - 0.10
11/07/2020 - - - - - - - - - - - - - - - - 0.03
11/08/2020 - - - - - - - - - - - - - - - - -
11/09/2020 - - - - - - - - - - - - - - - - -
Page 700 of 1163
180
DFINAL (in) VFINAL (ft/s) QFINAL (MGD - Total MG) Rain (in)
Date Time Min Time Max Avg Time Min Time Max Avg Time Min Time Max Avg Total Total
11/10/2020 - - - - - - - - - - - - - - - - 0.02
11/11/2020 - - - - - - - - - - - - - - - - -
11/12/2020 - - - - - - - - - - - - - - - - 0.11
11/13/2020 - - - - - - - - - - - - - - - - 0.32
11/14/2020 - - - - - - - - - - - - - - - - 0.40
11/15/2020 - - - - - - - - - - - - - - - - 0.17
11/16/2020 - - - - - - - - - - - - - - - - 0.33
11/17/2020 - - - - - - - - - - - - - - - - 0.15
11/18/2020 - - - - - - - - - - - - - - - - 0.25
11/19/2020 - - - - - - - - - - - - - - - - 0.43
11/20/2020 - - - - - - - - - - - - - - - - -
11/21/2020 - - - - - - - - - - - - - - - - -
11/22/2020 - - - - - - - - - - - - - - - - 0.19
11/23/2020 - - - - - - - - - - - - - - - - 0.11
11/24/2020 - - - - - - - - - - - - - - - - 0.16
11/25/2020 - - - - - - - - - - - - - - - - 0.02
11/26/2020 - - - - - - - - - - - - - - - - 0.01
11/27/2020 - - - - - - - - - - - - - - - - -
11/28/2020 - - - - - - - - - - - - - - - - 0.03
11/29/2020 - - - - - - - - - - - - - - - - -
11/30/2020 - - - - - - - - - - - - - - - - 0.30
12/01/2020 - - - - - - - - - - - - - - - - -
12/02/2020 - - - - - - - - - - - - - - - - -
12/03/2020 - - - - - - - - - - - - - - - - -
12/04/2020 - - - - - - - - - - - - - - - - -
12/05/2020 - - - - - - - - - - - - - - - - 0.01
12/06/2020 - - - - - - - - - - - - - - - - 0.02
12/07/2020 - - - - - - - - - - - - - - - - -
12/08/2020 - - - - - - - - - - - - - - - - 0.81
12/09/2020 - - - - - - - - - - - - - - - - 0.19
12/10/2020 - - - - - - - - - - - - - - - - 0.04
12/11/2020 - - - - - - - - - - - - - - - - 0.01
12/12/2020 - - - - - - - - - - - - - - - - -
12/13/2020 - - - - - - - - - - - - - - - - 0.16
12/14/2020 - - - - - - - - - - - - - - - - 0.04
12/15/2020 - - - - - - - - - - - - - - - - 0.51
12/16/2020 - - - - - - - - - - - - - - - - 0.33
12/17/2020 - - - - - - - - - - - - - - - - 0.03
12/18/2020 - - - - - - - - - - - - - - - - 0.16
12/19/2020 - - - - - - - - - - - - - - - - 0.41
12/20/2020 - - - - - - - - - - - - - - - - 0.04
12/21/2020 - - - - - - - - - - - - - - - - 1.07
12/22/2020 - - - - - - - - - - - - - - - - -
12/23/2020 - - - - - - - - - - - - - - - - -
12/24/2020 - - - - - - - - - - - - - - - - -
12/25/2020 - - - - - - - - - - - - - - - - 0.25
12/26/2020 - - - - - - - - - - - - - - - - 0.02
12/27/2020 - - - - - - - - - - - - - - - - 0.13
12/28/2020 - - - - - - - - - - - - - - - - -
12/29/2020 - - - - - - - - - - - - - - - - 0.13
12/30/2020 - - - - - - - - - - - - - - - - 0.71
12/31/2020 - - - - - - - - - - - - - - - - 0.15
09/22/2020 00:00 - 04/14/2021 23:56
DFINAL
(in)
VFINAL
(ft/s)
QFINAL
(MGD -
Total MG)
Rain (in)
Total 26.02
Average
Page 701 of 1163
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Private Sewer Mains
King County Sewer Mains
Sanitary Sewer Lines
PIPESIZE
0 - 8
9 - 10
11 - 12
13 - 18
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Meter Basins - 29 April 2021
Page 702 of 1163
0.0000.0050.0100.0150.0200.0250.0300.0350.0400.045036912151821Dry Weather FlowAUB_A12_71043MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A12_71043Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.000.020.040.060.080.00.0RainfallQfinal(g)0.00.51.01.52.02.53.03.54.04.55.05.50246810120.0750.30.60.91.21.51.82.12.4Scatter GraphAUB_A12_71043VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 7.53)Page 703 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.010.020.030.040.050.060.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.010.020.030.040.050.060.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.0000.0050.0100.0150.0200.0250.0300.0350.0400.0450.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 704 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.0000.0050.0100.0150.0200.0250.0300.0350.0400.0450.0500.0550.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A12_71043Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.0000.0050.0100.0150.0200.0250.0300.0350.0400.0450.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 705 of 1163
0.010.020.030.040.050.060.070.080.09036912151821Dry Weather FlowAUB_A13_71085MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A13_71085Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.000.050.100.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.41.61.80123456780.010.040.080.120.160.20.240.280.320.36Scatter GraphAUB_A13_71085VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 3.45)Page 706 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.010.020.030.040.050.060.070.080.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 707 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.010.020.030.040.050.060.070.080.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.010.020.030.040.050.060.070.080.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A13_71085Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 708 of 1163
0.020.030.040.050.060.070.080.09036912151821Dry Weather FlowAUB_A15_80930MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A15_80930Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.050.100.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.41.61.82.002468101214161820220.0750.30.60.91.21.51.82.12.42.7Scatter GraphAUB_A15_80930VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 1.88)Page 709 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.020.040.060.080.100.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 710 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.020.040.060.080.100.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A15_80930Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 711 of 1163
0.140.160.180.200.220.240.260.280.300.32036912151821Dry Weather FlowAUB_A16_80956MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A16_80956Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.20.40.60.00.0RainfallQfinal(g)01234567891011120246810121416180.25123456789Scatter GraphAUB_A16_80956VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 12.82)Page 712 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.400.450.500.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 713 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.10.20.30.40.50.60.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.400.450.500.550.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A16_80956Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 714 of 1163
0.0150.0200.0250.0300.0350.0400.0450.0500.0550.0600.0650.070036912151821Dry Weather FlowAUB_A17_80957MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A17_80957Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.000.050.100.150.200.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.41.61.82.02.20123456789100.01750.070.140.210.280.350.420.490.560.63Scatter GraphAUB_A17_80957VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 3.58)Page 715 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.000.050.100.150.200.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 716 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.010.020.030.040.050.060.070.080.090.100.110.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.010.020.030.040.050.060.070.080.090.100.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.010.020.030.040.050.060.070.080.090.100.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A17_80957Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 717 of 1163
0.0100.0150.0200.0250.0300.0350.0400.0450.0500.055036912151821Dry Weather FlowAUB_A1a_30822MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A1a_30822Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.020.040.060.080.100.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.41.61.82.02.20123456789100.020.080.160.240.320.40.480.560.640.72Scatter GraphAUB_A1a_30822VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 1.86)Page 718 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.010.020.030.040.050.060.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140.000.010.020.030.040.050.060.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.220.0000.0050.0100.0150.0200.0250.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.000.010.020.030.040.050.060.070.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 719 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.000.010.020.030.040.050.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.000.010.020.030.040.050.060.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.050.100.150.200.0000.0050.0100.0150.0200.0250.0300.0350.0400.0450.0500.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A1a_30822Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.000.010.020.030.040.050.060.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 720 of 1163
0.010.020.030.040.050.060.07036912151821Dry Weather FlowAUB_A1b_30968MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A1b_30968Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.000.050.100.150.200.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.41.61.82.00246810120.0250.10.20.30.40.50.60.70.80.9Scatter GraphAUB_A1b_30968VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 2.94)Page 721 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.140.160.180.200.220.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.220.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 722 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.000.020.040.060.080.100.120.140.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.050.100.150.200.000.020.040.060.080.100.120.140.160.180.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A1b_30968Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 723 of 1163
0.100.150.200.250.30036912151821Dry Weather FlowAUB_A1c_30906MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A1c_30906Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.10.20.30.40.50.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.40246810121416180.050.20.40.60.811.21.41.6Scatter GraphAUB_A1c_30906VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 1.54)Page 724 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.220.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 725 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.00.10.20.30.40.50.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.050.100.150.200.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A1c_30906Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.400.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 726 of 1163
0.030.040.050.060.070.080.090.100.110.12036912151821Dry Weather FlowAUB_A1d_30910MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A1d_30910Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.000.050.100.150.00.0RainfallQfinal(g)0.00.51.01.52.02.53.03.54.04.55.05.56.00246810121416180.1750.71.42.12.83.54.24.95.66.3Scatter GraphAUB_A1d_30910VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 6.36)Page 727 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.140.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.220.000.020.040.060.080.100.120.140.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 728 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.000.020.040.060.080.100.120.140.160.180.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.050.100.150.200.000.020.040.060.080.100.120.140.160.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A1d_30910Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.140.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 729 of 1163
0.160.180.200.220.240.260.280.300.32036912151821Dry Weather FlowAUB_A3_40834MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A3_40834Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.10.20.30.40.50.00.0RainfallQfinal(g)01234567891011120246810121416180.25123456789Scatter GraphAUB_A3_40834VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 12.68)Page 730 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.220.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.000.050.100.150.200.250.300.350.400.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 731 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.00.10.20.30.40.50.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.050.100.150.200.00.10.20.30.40.50.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A3_40834Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 732 of 1163
0.140.160.180.200.220.240.260.280.300.32036912151821Dry Weather FlowAUB_A4_50817MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A4_50817Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.00.20.40.60.00.0RainfallQfinal(g)0.00.51.01.52.02.53.03.54.04.55.00246810120.0750.30.60.91.21.51.82.12.4Scatter GraphAUB_A4_50817VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 7.17)Page 733 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 734 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.050.100.150.200.250.300.350.400.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.00.10.20.30.40.50.60.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A4_50817Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 735 of 1163
0.030.040.050.060.070.080.090.100.110.120.13036912151821Dry Weather FlowAUB_A6_61009KMGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A6_61009KRainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.10.20.30.40.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.40246810120.01750.070.140.210.280.350.420.490.560.63Scatter GraphAUB_A6_61009KVFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 2.02)Page 736 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 737 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.050.100.150.200.250.300.350.400.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A6_61009KRainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 738 of 1163
0.060.080.100.120.140.160.180.200.22036912151821Dry Weather FlowAUB_A8_70829MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A8_70829Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.50.00.10.20.30.40.50.00.0RainfallQfinal(g)01234567891002468101214160.2250.91.82.73.64.55.46.37.28.1Scatter GraphAUB_A8_70829VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 12.55)Page 739 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 740 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.300.350.400.000.050.100.150.200.250.300.350.400.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A8_70829Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 741 of 1163
0.020.030.040.050.060.070.080.09036912151821Dry Weather FlowAUB_A9_71031MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A9_71031Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.00.10.20.30.00.0RainfallQfinal(g)0.00.20.40.60.81.01.21.41.61.82.00123456789100.01750.070.140.210.280.350.420.490.560.63Scatter GraphAUB_A9_71031VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 3.17)Page 742 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.010.020.030.040.050.060.070.080.090.100.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.020.040.060.080.100.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.140.160.180.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 743 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.020.040.060.080.100.120.140.160.180.200.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A9_71031Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 744 of 1163
0.000.050.100.150.200.250.300.350.400.450.50036912151821Dry Weather FlowAUB_Y-1_41016MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_Y-1_41016Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.20.40.60.80.00.0RainfallQfinal(g)0.00.51.01.52.02.53.002468101214161820220.10.40.81.21.622.42.83.23.6Scatter GraphAUB_Y-1_41016VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 3.57)Page 745 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.00.10.20.30.40.50.60.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140.00.10.20.30.40.50.60.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.220.000.050.100.150.200.250.300.350.400.450.500.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.00.10.20.30.40.50.60.70.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 746 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.00.10.20.30.40.50.60.70.80.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.00.10.20.30.40.50.60.70.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.050.100.150.200.00.10.20.30.40.50.60.70.80.90.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_Y-1_41016Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.00.10.20.30.40.50.60.70.80.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 747 of 1163
0.40.50.60.70.80.91.01.11.21.3036912151821Dry Weather FlowAUB_Y-2_61102MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_Y-2_61102Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.51.01.52.02.53.00.00.0RainfallQfinal(g)0246810121416182022024681012140.5246810121416Scatter GraphAUB_Y-2_61102VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 27.51)Page 748 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.00.20.40.60.81.01.21.41.60.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.00.20.40.60.81.01.21.40.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.00.20.40.60.81.01.21.41.61.82.02.20.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 749 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date2 SatJan 20213 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.51.01.52.02.53.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/14/2021 7:00:00 AMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.00.51.01.52.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date11 MonJan 202112 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.51.01.52.02.53.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/21/2021 9:00:00 PMAUB_Y-2_61102Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.51.01.52.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 750 of 1163
0.300.350.400.450.500.550.600.650.700.75036912151821Dry Weather FlowAUB_Y-3_101255MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_Y-3_101255Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.51.01.52.02.50.00.0RainfallQfinal(g)0246810121416180510152025148121620242832Scatter GraphAUB_Y-3_101255VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 16.30)Page 751 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.00.10.20.30.40.50.60.70.80.91.00.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.00.10.20.30.40.50.60.70.80.91.00.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.00.10.20.30.40.50.60.70.80.90.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.00.20.40.60.81.01.21.41.61.80.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 752 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.51.01.52.02.50.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.00.20.40.60.81.01.21.41.60.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.51.01.52.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_Y-3_101255Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.20.40.60.81.01.21.41.61.82.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 753 of 1163
0.040.060.080.100.120.140.160.180.200.22036912151821Dry Weather FlowAUB_Y-4_101002MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_Y-4_101002Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.050.100.150.200.250.00.0RainfallQfinal(g)0.00.51.01.52.02.53.03.54.00246810121416180.1250.511.522.533.544.5Scatter GraphAUB_Y-4_101002VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 4.22)Page 754 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.000.050.100.150.200.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 755 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_Y-4_101002Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 756 of 1163
0.200.220.240.260.280.300.320.340.36036912151821Dry Weather FlowAUBWV016MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUBWV016Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.51.01.50.00.0RainfallQfinal(g)0.00.51.01.52.02.53.03.54.04.55.05.56.0051015202530350.75369121518212427Scatter GraphAUBWV016VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 3.98)Page 757 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUBWV016Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.050.100.150.200.250.300.350.400.450.500.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUBWV016Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/IPrecomp(-)2021 Winter Weekends (Alt)2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUBWV016Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.250.300.350.400.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUBWV016Rainfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.00.10.20.30.40.50.60.70.80.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter Weekends (Alt)Page 758 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUBWV016Rainfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.20.40.60.81.01.21.41.61.80.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends (Alt)2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUBWV016Rainfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.140.00.10.20.30.40.50.60.70.80.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter Weekends (Alt)Storm Event - 1/11/2021 8:00:00 AMAUBWV016Rainfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.20.40.60.81.01.21.40.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter Weekends (Alt)Storm Event - 2/21/2021 9:00:00 PMAUBWV016Rainfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.10.20.30.40.50.60.70.80.90.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter Weekends (Alt)Page 759 of 1163
0.40.50.60.70.80.91.01.1036912151821Dry Weather FlowSRT11MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowSRT11Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.401230.00.0RainfallQfinal(g)AUB_Y-3_101255AUB_Y-4_10100202468101214051015202514812162024283236Scatter GraphSRT11VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 11.01)Page 760 of 1163
Storm Event - 10/9/2020 9:00:00 PMSRT11Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMSRT11Rai nfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.00.20.40.60.81.01.21.40.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMSRT11Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMSRT11Rai nfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.00.20.40.60.81.01.21.41.61.82.00.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 761 of 1163
Storm Event - 1/2/2021 7:00:00 AMSRT11Rai nfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.51.01.52.02.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMSRT11Rai nfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.140.00.20.40.60.81.01.21.41.61.82.00.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMSRT11Rai nfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.51.01.52.02.53.03.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMSRT11Rai nfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.51.01.52.02.53.00.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 762 of 1163
0.60.81.01.21.41.61.8036912151821Dry Weather FlowWINT035MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowWINT035Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.41230.00.0RainfallQfinal(g)012345678910111213051015202530351.561218243036424854Scatter GraphWINT035VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 8.88)Page 763 of 1163
Storm Event - 10/9/2020 9:00:00 PMWINT035Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.00.51.01.52.02.50.00.51.0RainfallGross QGross I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMWINT035Rainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.00.51.01.52.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMWINT035Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.00.51.01.52.00.00.51.0RainfallGross QGross I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMWINT035Rainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.00.51.01.52.02.53.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 764 of 1163
Storm Event - 1/2/2021 7:00:00 AMWINT035Rainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.51.01.52.02.53.03.50.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMWINT035Rainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.140.00.51.01.52.02.53.00.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMWINT035Rainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.51.01.52.02.53.03.50.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMWINT035Rainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.51.01.52.02.53.03.50.00.51.0RainfallGross QGross I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 765 of 1163
0.200.250.300.350.400.45036912151821Dry Weather FlowAUB_A1_30820MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A1_30820Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.00.20.40.60.00.0RainfallQfinal(g)AUB_A1A_30822AUB_A1B_30968AUB_A1C_309060.00.51.01.52.02.53.03.54.04.55.002468101214161820220.20.81.62.43.244.85.66.47.2Scatter GraphAUB_A1_30820VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 4.72)Page 766 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A1_30820Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A1_30820Rainfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A1_30820Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.220.000.050.100.150.200.250.300.350.400.450.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A1_30820Rainfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.000.050.100.150.200.250.300.350.400.450.500.550.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 767 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A1_30820Rai nfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.00.10.20.30.40.50.60.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A1_30820Rai nfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.00.10.20.30.40.50.60.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A1_30820Rai nfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.200.220.00.10.20.30.40.50.60.70.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A1_30820Rai nfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.00.10.20.30.40.50.60.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 768 of 1163
0.150.200.250.300.350.40036912151821Dry Weather FlowAUB_A10_710151MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A10_710151Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.00.20.40.60.81.00.00.0RainfallQfinal(g)AUB_A16_80956AUB_A17_809570.00.20.40.60.81.01.21.41.61.82.02.205101520250.1250.511.522.533.544.5Scatter GraphAUB_A10_710151VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 1.93)Page 769 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A10_710151Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.00.10.20.30.40.50.60.70.80.90.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A10_710151Rainfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.350.400.450.500.550.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A10_710151Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.00.10.20.30.40.50.60.70.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A10_710151Rai nfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.00.10.20.30.40.50.60.70.80.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysPage 770 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A10_710151Rai nfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.10.20.30.40.50.60.70.80.91.01.10.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A10_710151Rai nfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.00.10.20.30.40.50.60.70.80.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A10_710151Rai nfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.10.20.30.40.50.60.70.80.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A10_710151Rai nfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.10.20.30.40.50.60.70.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 771 of 1163
0.020.030.040.050.060.070.080.090.10036912151821Dry Weather FlowAUB_A11_710142MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A11_710142Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.00.10.20.30.00.0RainfallQfinal(g)AUB_A9_710310.00.51.01.52.02.5024681012140.050.20.40.60.811.21.41.61.8Scatter GraphAUB_A11_710142VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 3.58)Page 772 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A11_710142Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A11_710142Rainfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.010.020.030.040.050.060.070.080.090.100.110.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A11_710142Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.020.040.060.080.100.120.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A11_710142Rainfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.020.040.060.080.100.120.140.160.180.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 773 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A11_710142Rainfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A11_710142Rainfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.020.040.060.080.100.120.140.160.180.200.220.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A11_710142Rainfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A11_710142Rainfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 774 of 1163
0.080.100.120.140.160.180.200.220.24036912151821Dry Weather FlowAUB_A14_710149MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A14_710149Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.00.10.20.30.00.0RainfallQfinal(g)AUB_A15_809300.00.20.40.60.81.01.21.40246810121416180.050.20.40.60.811.21.41.6Scatter GraphAUB_A14_710149VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 1.62)Page 775 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A14_710149Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A14_710149Rainfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A14_710149Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A14_710149Rainfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 776 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A14_710149Rainfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A14_710149Rainfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A14_710149Rainfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A14_710149Rainfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 777 of 1163
0.060.080.100.120.140.160.180.20036912151821Dry Weather FlowAUB_A7_70807MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A7_70807Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40.00.20.40.60.80.00.0RainfallQfinal(g)AUB_A8_708290.00.51.01.52.02.53.03.54.00246810121416180.1250.511.522.533.544.5Scatter GraphAUB_A7_70807VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 4.55)Page 778 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A7_70807Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.000.020.040.060.080.100.120.140.160.180.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A7_70807Rainfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.000.050.100.150.200.250.300.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A7_70807Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.000.050.100.150.200.250.300.350.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A7_70807Rainfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.400.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 779 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A7_70807Rai nfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.10.20.30.40.50.60.70.80.90.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A7_70807Rainfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.140.000.050.100.150.200.250.300.350.400.450.500.550.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A7_70807Rai nfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.10.20.30.40.50.60.70.80.90.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A7_70807Rai nfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.10.20.30.40.50.60.70.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 780 of 1163
0.150.200.250.300.350.400.450.500.550.600.650.70036912151821Dry Weather FlowMSTTR22AMGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowMSTTR22ARainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.00.51.01.50.00.0RainfallQfinal(g)AUB_A10_710151AUB_A12_71043AUB_A13_71085AUB_A14_7101490.00.51.01.52.02.53.03.54.04.50510152025303540450.75369121518212427Scatter GraphMSTTR22AVFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 2.71)Page 781 of 1163
Storm Event - 10/9/2020 9:00:00 PMMSTTR22ARainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMMSTTR22ARainfall (in)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.00.10.20.30.40.50.60.70.80.90.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays (Alt)2020 Summer Weekdays (Alt)Storm Event - 11/3/2020 7:00:00 AMMSTTR22ARainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.00.10.20.30.40.50.60.70.80.91.01.10.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMMSTTR22ARainfall (in)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer Weekdays (Alt)2020 Summer Weekdays (Alt)Page 782 of 1163
Storm Event - 1/2/2021 7:00:00 AMMSTTR22ARainfall (in)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.250.00.20.40.60.81.01.21.40.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer Weekdays (Alt)2020 Summer Weekdays (Alt)Storm Event - 2/14/2021 7:00:00 AMMSTTR22ARainfall (in)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.080.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays (Alt)2020 Summer Weekdays (Alt)Storm Event - 1/11/2021 8:00:00 AMMSTTR22ARainfall (in)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer Weekdays (Alt)2020 Summer Weekdays (Alt)Storm Event - 2/21/2021 9:00:00 PMMSTTR22ARainfall (in)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.180.00.20.40.60.81.01.20.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer Weekdays (Alt)2020 Summer Weekdays (Alt)Page 783 of 1163
1.52.02.53.03.54.0036912151821Dry Weather FlowWINT003MGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowWINT003Rainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.4024680.00.0RainfallQfinal(g)AUB_A7_70807SRT11WINT035012345670510152025303540451.2551015202530354045Scatter GraphWINT003VFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 4.38)Page 784 of 1163
Storm Event - 10/9/2020 9:00:00 PMWINT003Rainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450.00.51.01.52.02.53.03.54.04.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMWINT003Rai nfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.00.51.01.52.02.53.03.54.04.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMWINT003Rainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.250.00.51.01.52.02.53.03.54.04.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMWINT003Rainfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.1401234560.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 785 of 1163
Storm Event - 1/2/2021 7:00:00 AMWINT003Rainfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.25012345670.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMWINT003Rainfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.120.1401234560.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMWINT003Rainfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180123456780.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMWINT003Rainfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.18012345670.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 786 of 1163
0.60.81.01.21.41.61.82.02.22.42.62.83.0036912151821Dry Weather FlowMSTTR02AMGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowMSTTR02ARainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.402460.00.0RainfallQfinal(g)AUB_A6_61009KAUB_Y-1_41016AUB_Y-2_61102MSTTR22A0.00.51.01.52.02.53.03.54.04.50510152025303540450.75369121518212427Scatter GraphMSTTR02AVFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 2.74)Page 787 of 1163
Storm Event - 10/9/2020 9:00:00 PMMSTTR02ARainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.00.51.01.52.02.53.03.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMMSTTR02ARai nfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.00.51.01.52.02.53.03.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMMSTTR02ARainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.050.100.150.200.00.51.01.52.02.53.00.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMMSTTR02ARai nfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.160.00.51.01.52.02.53.03.54.04.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 788 of 1163
Storm Event - 1/2/2021 7:00:00 AMMSTTR02ARai nfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.200.00.51.01.52.02.53.03.54.04.55.05.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMMSTTR02ARai nfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.010.020.030.040.050.060.070.00.51.01.52.02.53.03.54.04.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMMSTTR02ARainfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.2001234560.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMMSTTR02ARai nfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140.160.00.51.01.52.02.53.03.54.04.50.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 789 of 1163
2.53.03.54.04.55.05.56.06.57.0036912151821Dry Weather FlowAUB_A2_40805KMGDHours2020 Summer Weekdays2020 Summer Weekends2021 Winter Weekdays2021 Winter WeekendsPipe FlowAUB_A2_40805KRainfall (in)Flow (MGD)DateOct2020NovDecJan 2021FebMarApr0.00.10.20.30.40510150.00.0RainfallQfinal(g)AUB_A3_40834AUB_A4_50817MSTTR02AWINT0030.00.51.01.52.02.53.03.54.04.55.00102030405060702.2591827364554637281Scatter GraphAUB_A2_40805KVFINAL (ft/s)Iso Q (MGD)DFINAL (in)Lanfear-Coll (C-LC = 2.11)Page 790 of 1163
Storm Event - 10/9/2020 9:00:00 PMAUB_A2_40805KRainfall (in)Flow (MGD)Storms
Date8 ThuOct 20209 Fri10 Sat11 Sun12 Mon0.000.050.100.150.200.250.300.350.400.450123456780.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer Weekdays2020 Summer WeekendsStorm Event - 11/14/2020 3:00:00 PMAUB_A2_40805KRainfall (i n)Flow (MGD)Storms
Date13 FriNov 202014 Sat15 Sun16 Mon17 Tue18 Wed0.000.020.040.060.080.100.120.140123456780.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 11/3/2020 7:00:00 AMAUB_A2_40805KRainfall (in)Flow (MGD)Storms
Date2 MonNov 20203 Tue4 Wed5 Thu0.000.020.040.060.080.100.120.140.160.180.200.22012345670.00.51.0RainfallGross QGross I/INet I/IPrecomp(-)2020 Summer WeekdaysStorm Event - 12/20/2020 11:00:00 PMAUB_A2_40805KRainfall (i n)Flow (MGD)Storms
Date19 SatDec 202020 Sun21 Mon22 Tue23 Wed0.000.020.040.060.080.100.120.140.1602468100.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 791 of 1163
Storm Event - 1/2/2021 7:00:00 AMAUB_A2_40805KRainfall (i n)Flow (MGD)Storms
Date1 FriJan 20212 Sat3 Sun4 Mon5 Tue6 Wed7 Thu8 Fri0.000.050.100.150.20024681012140.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekdays2021 Winter WeekendsStorm Event - 2/14/2021 7:00:00 AMAUB_A2_40805KRainfall (i n)Flow (MGD)Storms
Date13 SatFeb 202114 Sun15 Mon16 Tue17 Wed18 Thu19 Fri0.000.020.040.060.080.100.1202468100.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 1/11/2021 8:00:00 AMAUB_A2_40805KRainfall (i n)Flow (MGD)Storms
Date10 SunJan 202111 Mon12 Tue13 Wed14 Thu15 Fri16 Sat17 Sun0.000.020.040.060.080.100.120.140.160.180.200.2202468101214160.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysStorm Event - 2/21/2021 9:00:00 PMAUB_A2_40805KRainfall (i n)Flow (MGD)Storms
Date20 SatFeb 202121 Sun22 Mon23 Tue24 Wed25 Thu26 Fri0.000.020.040.060.080.100.120.140246810120.00.51.0RainfallGross QGross I/INet I/IPrecomp(+)2021 Winter Weekends2021 Winter WeekdaysPage 792 of 1163
Page 793 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.0000.0050.0100.0150.0200.0250.0300.0350.0400.0450.00.51.01.52.02.53.03.54.0Q vs i - AUB_A12_71043Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 794 of 1163
(1/2/2021) (1/11/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/31/2021) (2/21/2021) (3/24/2021)0.0000.0050.0100.0150.0200.0250.0300.0350.0400.00.51.01.52.02.53.03.54.0Q vs i - AUB_A13_71085Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 795 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.010.020.030.040.050.060.070.00.51.01.52.02.53.03.54.0Q vs i - AUB_A15_80930Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 796 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.020.040.060.080.100.120.140.160.180.200.00.51.01.52.02.53.03.54.04.5Q vs i - AUB_A16_80956Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 797 of 1163
(12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (1/31/2021) (2/21/2021) (3/24/2021)0.000.010.020.030.040.050.060.070.080.090.00.51.01.52.02.53.03.54.0Q vs i - AUB_A17_80957Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 798 of 1163
(2/21/2021) (3/24/2021) (1/31/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021)0.0000.0050.0100.0150.0200.0250.0300.0350.0400.00.51.01.52.02.53.03.54.0Q vs i - AUB_A1a_30822Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 799 of 1163
(11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (10/9/2020) (10/13/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.010.020.030.040.050.060.070.00.51.01.52.02.53.03.54.0Q vs i - AUB_A1b_30968Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 800 of 1163
(10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (2/21/2021) (3/24/2021) (1/31/2021) (10/9/2020)0.000.050.100.150.200.250.300.350.400.00.51.01.52.02.53.03.54.0Q vs i - AUB_A1c_30906Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 801 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.020.040.060.080.100.120.140.160.00.51.01.52.02.53.03.54.0Q vs i - AUB_A1d_30910Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 802 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.050.100.150.200.250.300.350.400.450.500.00.51.01.52.02.53.03.54.0Q vs i - AUB_A3_40834Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 803 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.020.040.060.080.100.120.140.160.180.200.00.51.01.52.02.53.03.54.0Q vs i - AUB_A4_50817Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 804 of 1163
(12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (1/31/2021) (2/21/2021) (3/24/2021)0.000.050.100.150.200.250.00.51.01.52.02.53.03.54.0Q vs i - AUB_A6_61009KTotal Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 805 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.050.100.150.200.250.300.350.400.450.500.550.00.51.01.52.02.53.03.54.04.5Q vs i - AUB_A8_70829Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 806 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.050.100.150.200.250.300.350.400.450.00.51.01.52.02.53.03.54.0Q vs i - AUB_A9_71031Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 807 of 1163
(1/31/2021) (2/21/2021) (3/24/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021)0.00.10.20.30.40.50.60.70.80.91.00.00.51.01.52.02.53.03.54.0Q vs i - AUB_Y-1_41016Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 808 of 1163
(1/31/2021) (2/21/2021) (12/15/2020) (12/20/2020) (1/2/2021) (10/9/2020) (10/13/2020) (11/3/2020) (1/11/2021) (3/24/2021) (11/14/2020) (12/8/2020)0.00.51.01.52.02.53.03.54.04.55.00.00.51.01.52.02.53.03.54.0Q vs i - AUB_Y-2_61102Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 809 of 1163
(12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (2/21/2021) (3/24/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (1/11/2021) (1/31/2021)0.00.51.01.52.02.53.03.50.00.51.01.52.02.53.03.54.0Q vs i - AUB_Y-3_101255Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 810 of 1163
(12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020)0.000.010.020.030.040.050.060.070.080.090.100.00.51.01.52.02.53.03.54.0Q vs i - AUB_Y-4_101002Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 811 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.00.20.40.60.81.01.21.41.61.82.00.00.51.01.52.02.53.03.54.04.5Q vs i - AUBWV016Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 812 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.020.040.060.080.100.120.140.160.180.200.00.51.01.52.02.53.03.54.04.5Q vs i - SRT11Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 813 of 1163
(10/9/2020) (10/13/2020) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021)0.00.51.01.52.02.53.03.54.04.55.00.00.51.01.52.02.53.03.54.04.5Q vs i - WINT035Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 814 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.050.100.150.200.250.300.00.51.01.52.02.53.03.54.0Q vs i - AUB_A1_30820Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 815 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.050.100.150.200.250.300.350.00.51.01.52.02.53.03.54.0Q vs i - AUB_A10_710151Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 816 of 1163
(12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (1/31/2021) (2/21/2021) (3/24/2021)0.0000.0020.0040.0060.0080.0100.0120.0140.0160.00.51.01.52.02.53.03.54.0Q vs i - AUB_A11_710142Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 817 of 1163
(11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (10/9/2020) (10/13/2020) (2/21/2021) (3/24/2021)0.000.010.020.030.040.050.060.070.080.090.100.00.51.01.52.02.53.03.54.0Q vs i - AUB_A14_710149Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 818 of 1163
(11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (2/21/2021) (3/24/2021) (1/31/2021)0.00.10.20.30.40.50.60.70.80.00.51.01.52.02.53.03.54.04.5Q vs i - AUB_A7_70807Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)winterPage 819 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.000.010.020.030.040.050.060.070.080.090.100.00.51.01.52.02.53.03.54.0Q vs i - MSTTR22ATotal Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 820 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.00.51.01.52.02.53.03.54.00.00.51.01.52.02.53.03.54.04.5Q vs i - WINT003Total Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 821 of 1163
(10/9/2020) (10/13/2020) (11/3/2020) (11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (3/24/2021)0.00.10.20.30.40.50.60.70.80.91.01.10.00.51.01.52.02.53.03.54.0Q vs i - MSTTR02ATotal Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 822 of 1163
(11/14/2020) (12/8/2020) (12/15/2020) (12/20/2020) (1/2/2021) (1/11/2021) (1/31/2021) (2/21/2021) (10/9/2020) (10/13/2020) (11/3/2020) (3/24/2021)0.00.51.01.52.02.53.00.00.51.01.52.02.53.03.54.0Q vs i - AUB_A2_40805KTotal Event Net RDII Volume vs. Rainfall DepthTotal Event Net RDII Volume (mg)Total Event Rainfall Depth (in)wintersummerPage 823 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
ATTACHMENT 1B FLOW METER QUALITY REVIEW
Page 824 of 1163
Filename.ppt/97Meter AUB_A1
Flow vs Rainfall
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Filename.ppt/98Meter AUB_A1
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Filename.ppt/121Meter AUB_A7b
Scattergraph
Note: 3 data
points with
negative velocity,
including 1 data
point with
negative depth
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Filename.ppt/122Meter AUB_A7c
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Filename.ppt/123Meter AUB_A7c
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Filename.ppt/127Meter AUB_A7e
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Note: 1 data point
with negative
depth
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TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
ATTACHMENT 1C LAND USE ELEMENTS OF
COMPREHENSIVE PLAN
Page 903 of 1163
LAND USELAND USE ELEMENTELEMENT
Page 904 of 1163
TABLE OF CONTENTS
Vision .......................................................................LU-1
Conditions and Trends ........................................LU-1
Introduction ...........................................................LU-1
Residential Land Use Designations .................LU-2
Commercial Land Use Designations ..............LU-6
Industrial Land Use Designations ..................LU-10
Public and Institutional Land Use Designations ...............................................LU-12
Overlays, Urban Growth Area, and Special Planning Land Use Designations .....LU-15
MAPS
Map 1.1 – Comprehensive Plan Land Use Map .............LU-29
Map 1.2 – Districts Map .......................................................LU-30
Map 1.3 – Designated Areas ...............................................LU-31
Map 1.4 – Adopted Areas ...................................................LU-32
Map 1.5 – Impression Corridors ........................................LU-33
Map 1.6 – Gateways Map...................................................LU-34
LAND USE ELEMENT
Page 905 of 1163
Vol. 1Volume 1Volume 1
LU-1
l and use elementland use element
VVisionision
The Auburn community is both physically and socially connected. We take pride in the quality of our
built environment as well as the beauty and function of our natural environment. Land use patterns are
supported by a complete and efficient transportation and utility infrastructure system. Neighborhoods,
commercial centers, and parks are attractive, interesting, accessible, and well maintained. Natural riv-
erine and forested corridors are interspersed throughout the city, offering sanctuaries where fish and
wildlife reside, and providing opportunities for people to observe and learn about the environment.
Residents have a strong association with their neighborhoods, and are engaged and involved in the
decisions that steer Auburn into the future.
Conditions and trends
dispersed land use Pattern
For the first 100 years of Auburn’s existence, the
land use pattern developed in a relatively logical
manner. Auburn was fully contained to the valley
floor with a traditional downtown urban center,
several north/south heavy commercial and in-
dustrial corridors paralleling Highway 167, and a
surrounding housing stock that was built primarily
between 1910 and 1960. In the last 30 years, the
land use pattern of Auburn has changed, primar-
ily from incorporation of areas to the south, east,
and west. Each newly incorporated area has its
own identity and land use pattern.
disconnected Communities
Because a significant portion of today’s Auburn
was settled prior to incorporation, the basic land
use patterns and infrastructure have already
been established. Furthermore, much of today’s
Auburn land use pattern was established in either
Auburn, the Muckleshoot Reservation, or prior to
incorporation in King County or Pierce County.
Given the mix of jurisdictional oversight, myri-
ad land use policies, regulations, infrastructure
standards, and investments have been applied
in these areas. This has resulted in a relative-
ly uncoordinated and random land use pattern.
It also means that the various communities lack
connectivity to each other, have a mix of identi-
ties, and are experiencing a change in their char-
acter from rural to more urban.
Robust diversity of land use
Auburn has a strong mix of housing and indus-
try. Auburn’s residential land use pattern includes
a variety of densities, ages, and housing type.
Auburn’s nonresidential land use pattern includes
a mix of local and regional retail, entertainment,
services, manufacturing, warehousing, and distri-
bution centers. This mix of land use is a strength
because it exemplifies social, economic, and cul-
tural diversity.
diversity in natural Resources
Auburn’s natural resources include the Green
River and its tributaries, the White River and its
tributaries, a robust inventory of wetlands, flood-
plains, steep slopes, and mature open spaces.
With a strong base to work from, the City and its
partners can be strategic about how to better
connect and preserve natural areas so that the
overall system is enhanced for future generations
to enjoy.
introduCtion
All land within the City of Auburn is assigned a
land use designation, which builds off the past
Comprehensive Plan Map, the existing land use
Page 906 of 1163
City of Auburn Comprehensive plAn
LU-2Vol. 1pattern, previously approved subarea plans, to-
pography, natural features, and targeted goals
for shifting the character of specified areas. This
chapter provides a description for each designa-
tion, general criteria for how to assign the desig-
nation, and a series of policies that govern land
use within each designation. The Comprehensive
Plan Land Use Map contained in the Core
Comprehensive Plan shows the location and
boundaries for each designation. This map should
be consulted together with the written policies
of this Plan when decisions about zoning desig-
nations, land use activities, and development of
public infrastructure are considered.
This Section of the document also explains the
reasoning and intention behind the Plan Map’s
land use designations. This should be useful in:
• developing and implementing tools (such as
zoning provisions)
• interpreting the Plan Map as it applies to spe-
cific regulatory decisions or development
proposals
• adjusting or amending the Plan Map when
changing conditions or land use markets
warrant
• planning for public services and infrastructure
Finally, this chapter sets forth special policies in-
tended to address the unique challenges and
opportunities of specific locations within Auburn.
These specific policies supplement the general
goals, objectives and policies found elsewhere in
this plan.
r esidential l and use designations
Character s ketch
Residential uses will comprise a diverse arrange-
ment of multiple densities. The pattern of one sin-
gle density in a zone or neighborhood will evolve
into increased and mixed densities in exchange
for amenities that enhance quality of life. There
will be greater connectivity and stronger spatial
relationships between neighborhoods through
strategic locations of roadway, trail, park, and
neighborhood-serving businesses. These ameni-
ties will help create localized identity while also
linking one area to another. The design and build
quality of new construction and infill will be held
to a high standard. The City will encourage proj-
ects to be unique, innovative, and provide the res-
idents of Auburn true choice.
Values
Character: Residential neighborhoods will include
amenities, features, and layouts that promote in-
teraction amongst residents.
Wellness: The design of residential neighborhoods
will emphasize safety and nonmotorized
connectivity.
Service: Through outreach and engagement, in-
dividual residents and homeowners’ associations
are connected to and aware of municipal servic-
es, events, and activities.
Economy: Neighborhoods have a physical and
personal connection to Auburn’s commercial
centers and attractions. People want to move to
Auburn because of the commercial and recrea-
tional opportunities it has to offer.
Celebration: Districts and neighborhoods are
identified, promoted, and celebrated.
Environment: The built environment will fit into
the natural landscape in a way that protects and
respects ecosystem function and that preserves
native vegetation and soils.
Sustainability: Natural resources, economic pros-
perity, and cultural vibrancy are balanced in a
way that builds and maintains a thriving and
long-lasting community.
General Policies
LU-1 Regulations for new developments and infill
should address the following elements:
a. Connectivity by multiple means to ad-
jacent subdivisions, nearby commercial
hubs, and parks and recreation facilities.
b. Relationship to nearby existing or future
transit service.
c. Usable community amenities and spaces.
d. Environmental protection and preserva-
tion of natural features.
e. Preservation of areas that can support
low-impact development techniques.
Page 907 of 1163
land use element
LU-3 Vol. 1f. Promote the use of energy and water
conservation measures
g. Efficient and effective delivery of utility
service.
h. Innovative design.
i. Crime prevention through environmen-
tal design.
j. Long-term maintenance considerations.
LU-2 As the market and availability of util-
ities enable denser development to
occur, standards should be developed
to maximize density while preserving
open space and critical areas.
LU-3 Programs should be implemented to
improve the quality of low-income
neighborhoods and encour age reha-
bilitation of deteriorating structures
and facilities.
LU-4 Public and institutional uses may be
permitted as a conditional use if de-
signed in a manner that enhances
the residential character of the area.
Special care shall be given to ensur-
ing adequate parking, landscaping,
and traffic circulation to avoid conflict
with residential uses.
LU-5 New residential development should
contribute to the creation, enhance-
ment, and improvement of the trans-
portation system, health and human
services, emergency services, school
system, and park system. This may be
accomplished through the develop-
ment of level-of-service standards,
mitigation fees, impact fees, or con-
struction contributions.
LU-6 Cluster development is the preferred
form of residential development in
all residential designations with the
goal of preserving natural areas,
critical areas, and areas that sup-
port low-impact development. Where
clustering accomplishes these objec-
tives, it should not come at the ex-
pense of lost development potential.
Variances to lot size, lot dimensions,
building height, and other bulk or di-
mensional standards should be uti-
lized in order to create incentives that
promote preservation.
Residential Conservancy designation
Description
This designation should consist primarily of
low-density residential uses (one dwelling unit per
four acres is allowed) and accessory agricultural
uses in areas featuring environmental constraints
or requiring special protection such as the Coal
Creek Springs watershed area, low-lying areas
along the Green River, and areas that are isolated
from urban services. This designation will serve
to both protect environmental features and hold
areas for higher density development until such
time public facilities become available.
Designation Criteria
1. Areas with significant environmental con-
straints, intrinsic value, or that may pose en-
vironmental hazards if developed, such as
areas tributary to public water sources;
2. Affords greater protections to environmental
features than existing designation;
3. Level of service for property consistent with
adjacent residential conservancy properties;
or
4. Location, size of properties, and character is
consistent with a residential conservancy use.
Implementing Zoning Designations
Residential Conservancy
Policies
LU-7 Densities and activities shall be of a very
low intensity and shall not compromise en-
vironmental and watershed resources.
LU-8 In addition to single-family homes, these
larger properties can also be developed
with garages, accessory dwelling units,
barns, and other accessory outbuildings.
Home occupations, agricultural uses, and
other allowed nonresidential activities may
Page 908 of 1163
City of Auburn Comprehensive plAn
LU-4Vol. 1operate out of any type of permitted build-
ing, subject to intensity and use limitations.
LU-9 Until these areas are served by public util-
ities (water, sewer, storm services), exist-
ing and new development is not expected
to be served by public infrastructure, such
as urban streets, curbs, gutters, sidewalks,
street lighting, and landscaping.
LU-10 As the market and utility availability enable
denser development to occur, standards
should be developed to maximize density
while preserving open space and critical
areas.
LU-11 Small-scale agricultural uses are allowed
and encouraged. Commercial activities
that are directly related to and support
agricultural uses may also be allowed. The
procedural standards may vary depend-
ing upon the type and scale of agricultural
uses and supporting commercial activities.
Small-scale agricultural uses are allowed
and encouraged.
LU-12 Land use standards should adequately limit
and control excessive accumulation of de-
bris. Where a permitted activity does allow
outdoor storage, it should be adequate-
ly screened from adjacent properties and
roads, as well as ensuring adequate soil
and environmental protection.
LU-13 Public, institutional, and resource-ex-
tractive uses that are low-intensity and
preserve the environment may be consid-
ered conditional uses.
single-Family Residential designation
Description
This designation is the predominant land use
category in the City. Maintaining and creating a
diverse arrangement of interconnected subdivi-
sions, neighborhoods, and communities that have
a mix of densities and housing types; linkages
with other residential areas and commercial hubs
through nonmotorized modes, such as pedes-
trian and bicycling, and vehicular modes will be
encouraged.
Designation Criteria
1. Previously developed single-family residen-
tial areas;
2. Undeveloped areas that do not meet the
designation criteria for other Residential,
Commercial, Industrial, Institutional or
Public/Quasi-Public designations; or
3. Residential Conservancy areas that contain
limited critical areas, are served by public
utilities (water, sewer, storm services), and
meet the development parameters of the sin-
gle-family designation.
Implementing Zoning Designations
R-1 Residential Zone (One Dwelling Unit Per Acre):
All properties located within the Urban Separator
Overlay are zoned R-1, as consistent with King
County County-wide Planning Policies.
R-5 Residential Zone (Five Dwelling Units Per
Acre): All properties not located within the Urban
Separator Overlay may be zoned R-5.
R-7 Residential Zone (Seven Dwelling Units Per
Acre): All properties not located within the Urban
Separator Overlay may be zoned R-7.
Policies
LU-14 Accessory dwelling units should play an in-
tegral part of promoting infill development
and affordable housing, and are therefore
encouraged within this land use category.
LU-15 Home occupations, bed-and-breakfasts,
day cares, and other appropriate uses
should be encouraged as viable accessory
uses.
LU-16 Manufactured homes shall be permitted
on single-family lots provided they are
sited and constructed in a manner that
would blend with adjacent homes.
LU-17 Provide a variety of housing typolo-
gies to suit the needs of various potential
residents.
LU-18 Density bonuses outside of the Urban
Separator Overlay should be approved
based on innovations in transportation,
stormwater management, and public
amenities proposed for the development
or adjacent neighborhoods associated
Page 909 of 1163
land use element
LU-5 Vol. 1with the request. The onus is on the de-
veloper to justify density above baseline.
Examples of amenities and concepts that
justify density bonuses include park space,
art, enhanced landscaping, trails that con-
nect to adjacent properties, neighborhood
commercial property set asides, use of
low-impact development techniques be-
yond the minimum code requirements, in-
corporation of CPTED concepts, and varia-
tion of architecture and housing typology.
moderate density Residential designation
Description
Moderate Density Residential designated areas
are planned to accommodate a variety of res-
idential dwelling types. Varying intensities may
be permitted to provide a transition between sin-
gle-family residential and other more intensive
uses or activities (such as arterial streets) based
on adjacent density, intensity, and/or charac-
ter. Appropriate densities in these areas gen-
erally range from 7 up to 20 dwelling units per
acre. Dwelling types generally range from sin-
gle-family dwelling to multiple-family dwellings,
with larger structures allowed (within the density
range) where offsetting community benefits can
be identified.
Designation Criteria
1. Previously developed moderate-density res-
idential areas; or
2. Areas that provide a transition between sin-
gle-family and multifamily, single-family and
nonresidential, multifamily and nonresidential
zones or development that are adjacent and
meet the development parameters of the
Moderate Density Residential designation.
Implementing Zoning Designations
Residential Transition
R-10 Residential (Ten Dwelling Units Per Acre)
R-16 Residential (Sixteen Dwelling Units Per Acre)
Policies
LU-19 Density bonuses and flexible development
standards should be considered an incen-
tive for innovative neighborhood design.
LU-20 Carefully developed low-intensity of-
fice, or residentially related commercial
uses (such as day care centers) can be
compatible.
LU-21 Accessory dwelling units should play an
integral part of promoting infill devel-
opment and affordable housing and are
therefore encouraged within this land use
category.
m ultiple-family designation
Description
This category shall be applied to those areas that
are either now developed or are reserved for mul-
tiple family dwellings. Densities may range from
20 to 24 units per acre. These communities are
served by transit, have nonmotorized connections
to surrounding amenities and services, or have
access to on-site amenities.
Designation Criteria
1. Previously developed high-density residen-
tial or manufactured/mobile home parks; or
2. Properties that are connected to single-fam-
ily and nonresidential designations by the
Residential Transition designation and
meet the development parameters of the
Multifamily designation.
Implementing Zoning Designations
R-20 Residential Zone (Twenty Dwelling Units Per
Acre): All Multiple-family designated land not
previously developed as manufactured/mobile
home parks are zoned R-20.
Manufactured/Mobile Home Park: All previously
developed manufactured/mobile home parks are
zoned RMHC.
Policies
LU-22 Development regulations should include
density bonuses and flexible development
standards that create incentives for inno-
vative site and building design, incorpo-
ration of open space and public art, non-
motorized connectivity to parks and com-
mercial areas, proximity to transit services,
Page 910 of 1163
City of Auburn Comprehensive plAn
LU-6Vol. 1supplemental natural resource protection,
supplemental use of CPTED, and supple-
mental use of low-impact development
techniques.
LU-23 Home occupations and shared housing
should be allowed in this designation; how-
ever, given their high densities, it is appro-
priate to establish additional restrictions,
procedures, and requirements in order to
ensure that they are compatible with their
surroundings and do not adversely affect
the community.
LU-24 Live–work units are encouraged.
LU-25 Improve the quality of low-income neigh-
borhoods and implement programs that
encour age rehabilitation of deteriorat-
ing structures and facilities the downtown
area, areas between lower-density resi-
dential uses and more intense nonresiden-
tial activities, and areas with high levels of
transit service and available high-quality
services.
LU-26 Multiple-family development should be
subject to building and site design stan-
dards. These standards should address
the appearance of buildings, compatibility
with nearby uses, exterior lighting, con-
nectivity with surrounding properties and
uses, the relationship of ground floor spac-
es and entryways with the streetscape,
and connectivity to nearby nonresidential
hubs (shopping centers and schools).
LU-27 Provide a variety of housing typolo-
gies to suit the needs of various potential
residents.
LU-28 Establish intensity limitations such as floor
area ratios, density, building height, cover-
age ratios, setbacks, and other standards.
LU-29 Access to nearby amenities and health
and human services should be consid-
ered when reviewing senior housing
developments.
LU-30 Encourage development of perma-
nent supportive housing to address the
homeless population and those with spe-
cial needs.
LU-31 Encourage adaptive reuse, particularly of
historic properties.
CommerCial l and use designations
Character s ketch
Commercial uses will be wide ranging in terms of
scale and type. A mix of businesses – local, region-
al, and national – will be among the businesses
in the various designations, and will be carefully
located to create balance and maintain appropri-
ateness based on adjacent uses. These commer-
cial areas will be economically vibrant, unique,
and active outside of traditional work hours. They
will be accessible by foot, bike, car, and public
transport.
Values
Character – Active gathering spaces, such as
parks, plazas, cafes, concert venues, festivals and
markets, will be distributed throughout the City;
these spaces will be engaging and filled with peo-
ple interacting, irrespective of culture, age, or in-
come level.
Wellness: A variety of healthy food options will
be physically and economically accessible to all
members of the Auburn community.
Service: The City’s resources and services are
available and utilized by the business commu-
nity. The business community finds the City ap-
proachable, empathetic, and responsive. An open
and collaborative dialogue exists to help identify
problems and find solutions.
Economy: A wide complement of retail, service,
and dining options will cater to local needs, at-
tract visitors, and encourage consistent patron-
age of local businesses.
Celebration: Auburn will have a thriving and ex-
panding arts and culture community. There will
be events, amenities, and attractions that draw
people to congregate and socialize.
Environment: Local businesses benefit from
Auburn’s collection of natural resources and
amenities because residents and visitors are
choosing Auburn as their home or destination.
Page 911 of 1163
land use element
LU-7 Vol. 1Sustainability: Local businesses benefit from, and
contribute to, a sustainable economy because
Auburn is an easy location to start up, main-
tains opportunity for growth, and has a business
friendly economic climate.
General Policies
LU-32 The commercial uses permitted must be
carefully regulated in regards to perfor-
mance criteria and design.
LU-33 Permitted uses would consist of local-serv-
ing and community-serving retail trade,
offices, personal services, and eating
establishments.
LU-34 Encourage uses that provide health and
human services to the adjacent community.
LU-35 Encourage adaptive reuse, particularly of
historic properties.
LU-36 Promote the use of energy and water con-
servation measures (PSRC 11/12/15)
LU-37 Ensure that legally established existing
uses that may not conform with the under-
lying zone, but that are compatible with
their surrounding uses, and are allowed
to continue to evolve and operate without
being classified as “nonconforming” uses.
downtown urban Center designation
Description
This category should be applied exclusively in
downtown Auburn. The area should be devel-
oped in a manner consistent with and conducive
to pedestrian-oriented activities. The ambiance
of the downtown should encourage leisure shop-
ping, provide services to local residents and area
employees, and provide amenities that attract re-
gional visitors and shoppers.
Designation Criteria
1. Located within the Urban Center boundaries
established by the King County Countywide
planning policies or within Business
Improvement Area boundaries.
Implementing Zoning Designations
Downtown Urban Center
Policies
LU-38 Vertical mixed-use should be encouraged;
the location of retail sales and services
should predominately be on the ground
floor with residential or more retail or ser-
vices above. However, small freestanding
commercial spaces may be established
as an accessory use to a larger vertical
mixed-use development.
LU-39 Deviations of height, density or intensity
limitations should be allowed when sup-
plemental amenities are incorporated
into site and building design. Examples
of amenities include use of low-impact
development, use of sustainable site and
building techniques, public space and art,
transit-oriented development, landscap-
ing and lighting, and bike shelters - as well
as the inclusion of affordable housing.
LU-40 Encourage a broad mix of uses within the
downtown area. A wide range of consum-
er-oriented goods and services are com-
patible within this designation since cre-
ating an attractive shopping environment
is a primary emphasis. Permitted uses
include retail trade, offices, personal ser-
vices, eating and drinking establishments,
financial institutions, governmental offices,
and similar uses. Legally established exist-
ing uses that do not fit within the range of
desired new uses continue to be a valu-
able part of the downtown economy and
character and should be allowed to evolve
and operate in a manner that resembles
listed permitted uses.
LU-41 Encourage multiple family dwellings,
particularly within the upper stories of
buildings.
LU-42 Drive-in windows should not be permit-
ted to maintain the area’s pedestrian
environment.
LU-43 Parking standards within the downtown
should reflect the pedestrian orientation of
the area, but also consider parking’s im-
pact for economic development.
Page 912 of 1163
City of Auburn Comprehensive plAn
LU-8Vol. 1LU-44 Discourage uses that rely on direct access
by vehicles or involve heavy truck traffic
(other than for merchandise delivery).
LU-45 Unsightly outdoor storage and similar ac-
tivities should be prohibited.
LU-46 The downtown should capitalize on op-
portunities for multimodal transportation.
LU-47 Encourage adaptive reuse, particularly of
historic properties.
LU-48 As a designated VISION 2040 Regional
Growth Center that contains a transit
station, land use policies and regulations
should encourage population and em-
ployment growth.
neighborhood Commercial designation
Description
Low-intensity, small-scale commercial servic-
es that meet the daily needs of and complement
the quality of the residential neighborhoods they
serve. Commercial uses need to be carefully lo-
cated (if located within single-family residen-
tial neighborhoods) or should be buffered from
single-family residential areas. These areas are
characterized by lower traffic generation, fewer
operating hours, smaller-scale buildings, and less
signage than light commercial areas.
Designation Criteria
1. Located along arterial or collector streets;
2. Properties that are buffered from the sin-
gle-family designation by landscaping, en-
vironmental features, or the Residential
Transition designation; and
3. Meets the development parameters of the
Neighborhood Commercial designation.
Implementing Zoning Designations
Neighborhood Commercial
Policies
LU-49 The commercial uses permitted must be
carefully regulated in regards to perfor-
mance criteria and design. Architectural
style, building height and size, lighting,
and signage should be consistent with the
surrounding residential properties.
LU-50 Permitted uses would consist of small-scale
local-serving and community-serving re-
tail trade, offices, personal services, and
non-drive-through eating establishments.
LU-51 Special emphasis will be directed at those
accessory activities that can alter the
character of these areas into heavier com-
mercial areas. Examples include outdoor
storage, location and screening of trash
receptacles, loading and unloading zones,
and parking lots. Regulations and permit
conditions will employ techniques that mit-
igate light and noise impacts associated
with surrounding residential properties.
LU-52 Encourage adaptive reuse of existing res-
idential buildings and historic properties.
LU-53 Commercial uses will have an orientation
that is directed toward adjacent public
streets while also providing pedestrian
and bike-oriented access.
LU-54 Upzone requests to the next zone should
be approved based on the innovations
in transportation and stormwater man-
agement and public amenities proposed
for the development associated with the
request.
light Commercial designation
Description
This category represents the prime commercial
designation for small-to moderate-scale com-
mercial activities. These commercial areas should
be developed in a manner consistent with and at-
tracts pedestrian-oriented activities. Such areas
should encourage walkability, leisure shopping,
engaging public space, and should provide other
amenities conducive to attracting shoppers.
Designation Criteria
1. Previously developed light commercial areas
buffered from more intense commercial or
Page 913 of 1163
land use element
LU-9 Vol. 1industrial designations by landscaping or en-
vironmental features; or
2. Located along arterial or collector streets;
3. Properties that are buffered from the sin-
gle-family designation by landscaping, en-
vironmental features, or the Residential
Transition designation; and
4. Meets the development parameters of the
Light Commercial designation.
Implementing Zoning Designations
Light Commercial
Policies
LU-55 A wide range of consumer-oriented goods
and services are compatible within this
designation since creating an attractive
shopping environment is a primary em-
phasis. Permitted uses would consist of lo-
cal-serving and community-serving retail
trade, offices, personal services, eating
establishments, financial institutions, gov-
ernmental offices, and similar uses.
LU-56 Parking lots must be located and designed
in a manner that softens their appearance
from adjacent public roads. This is accom-
plished through landscaping, pedestrian
spaces, and the location of buildings on
the property. Where practicable, low-im-
pact development techniques and land-
scaping should be used to promote on site
stormwater infiltration and shading of hard
surfaces. Minimum and maximum parking
ratios must be established for each type of
permitted use.
LU-57 Development incentives should be estab-
lished that encourage the creation of elec-
tric car charging stations, use of sustain-
able building and/or operational practic-
es, development of nonmotorized infra-
structure, and proximity and connection to
public transit.
LU-58 Multiple family dwellings are only allowed
as part of mixed-use developments where
they do not interfere with the shopping
character of the area, such as within the
upper stories of buildings.
LU-59 Drive in windows should only be allowed
accessory to a permitted use, and only
when carefully sited under the adminis-
trative use process, in order to ensure that
an area’s pedestrian environment is not
compromised.
LU-60 Large-scale regional retail uses and uses
that rely on direct access by vehicles or
involve heavy truck traffic (other than for
merchandise delivery) are not appropriate
in this category.
LU-61 Unsightly outdoor storage and similar ac-
tivities should be prohibited.
LU-62 Encourage adaptive reuse, particularly of
historic properties.
LU-63 Upzone requests to the next zone should
be approved based on the innovations
in transportation and stormwater man-
agement and public amenities proposed
for the development associated with the
request.
Heavy Commercial designation
Description
This category is intended to accommodate uses
that would also accommodate a wide range of
heavier commercial uses involving extensive stor-
age or vehicular movement.
Designation Criteria
1. Previously developed heavy commercial
areas; or
2. Located along major arterial streets;
3. Properties that are buffered from the sin-
gle-family designation by landscaping, en-
vironmental features, or the Residential
Transition designation and buffered from all
other Residential designations; and
4. Meets the development parameters of the
Heavy Commercial designation.
Implementing Zoning Designations
Heavy Commercial: All Heavy Commercial des-
ignated land not located within the Northeast
Auburn Special Planning Area or located with-
in the Northeast Auburn Special Planning Area,
Page 914 of 1163
City of Auburn Comprehensive plAn
LU-10Vol. 1but incapable of meeting the C-MU zoning
requirements.
Policies
LU-69 A wide variety of commercial-oriented
services are appropriate within this cat-
egory. This includes but is not limited to
regional-scale retail and entertainment
uses, commercial uses with outdoor sales
areas, drive-in restaurant or other drive
in commercial businesses, and commer-
cial services with outdoor storage as an
accessory use.
LU-70 Parking lots must be located and de-
signed in a manner that softens their
appearance from adjacent public roads.
This is accomplished through landscap-
ing, pedestrian spaces, and the loca-
tion of buildings on the property. Where
practicable, low-impact development
techniques and landscaping should be
used to promote on site stormwater in-
filtration and shading of hard surfaces.
Minimum and maximum parking ratios
must be established for each type of
permitted use.
LU-71 Development incentives should be estab-
lished that encourage the creation of elec-
tric car charging stations, use of sustain-
able building and/or operational practic-
es, development of nonmotorized infra-
structure, and proximity and connection to
public transit.
industrial l and use designations
Character s ketch
Industrial uses will become a more integrated part of
the physical and social life of the City. Since so many
people work in these areas and these companies
contribute so much to the financial life of the city, it
is important that they are connected through paths,
roads and by public transportation. Locations that
have access to rail and highways that also encour-
age intelligent growth patterns will be prioritized.
Innovation will be a key requirement of new and in-
fill projects as the City looks to mitigate impacts of
production and limit damage to the environment.
Values
Character: Buildings, landscaping, and outdoor
spaces will be attractive, interesting, well designed,
and well maintained.
Wellness: Risk to life and property from all hazards
will be minimized. Properties and businesses are
connected to nonmotorized corridors that offers
alternative means to commute.
Service: The city works closely with individuals and
organizations to fully understand the demands,
needs, and concerns of the industrial community
so that the City can sponsor initiatives that help aid
in their success.
Economy: Cornerstone institutions will strategically
expand in regional prominence. As industry grows,
land use policy will support efforts to grow within
Auburn.
Celebration: The Community will be made aware
of and celebrate the accomplishments of our local,
regional and international leaders in manufactur-
ing, warehousing, and distribution.
Environment: The built environment will fit into the
natural landscape in a way that protects and re-
spects ecosystem function. Natural resource pro-
tection will be supported and celebrated by City
leadership and the community.
Sustainability: Industrial uses are contributing to,
and supportive of, efforts to build and maintain
a transportation system that ensures the people
and goods move safely throughout the City and
beyond.
General Policies
LU-72 A wide range of industrial uses may be per-
mitted, subject to performance standards.
LU-73 Outside storage shall be permitted sub-
ject to performance criteria addressing its
quantity and location.
LU-74 Development incentives should be es-
tablished that encourage the creation
of electric car charging stations, use of
sustainable building and/or operational
practices, development of nonmotorized
Page 915 of 1163
land use element
LU-11 Vol. 1infrastructure, and proximity and connec-
tion to public transit.
LU-75 Promote the use of energy and water con-
servation measures
light Industrial designation
Description
This category is intended to accommodate a
wide range of industrial and commercial uses.
This designation is intended to provide an attrac-
tive location for manufacturing, processing and
assembling land use activities that contribute to
quality surroundings. A wide variety of appropri-
ate commercial uses in this designation benefit
from the location, access, physical configuration,
and building types of these properties. It is distin-
guished from heavier industrial uses by means of
performance criteria. All significant activities shall
take place inside buildings, and the processing
or storage of hazardous materials shall be strict-
ly controlled and permitted only as an incidental
part of another use.
Designation Criteria
1. Previously developed light industrial areas; or
2. Located along high-visibility corridors;
3. Provides buffering for heavy industrial areas
or is buffered from the single-family designa-
tion by landscaping, environmental features,
or the Residential Transition designation and
buffered from all other Residential designa-
tions; and
4. Meets the development parameters of the
Light Industrial designation.
Implementing Zoning Designations
Light Industrial
Policies
LU-76 A wide range of industrial uses may be
permitted, subject to performance stan-
dards. Heavy commercial uses that serve
the needs of workers in light industries are
also appropriate. These uses include indoor
manufacturing, processing, and assembling
of materials from previously prepared or
raw materials and ancillary and necessary
warehousing and distribution of finished
goods associated with manufacturing and
industrial uses.
LU-77 Parking lots must be located and designed
in a manner that softens their appearance
from adjacent public roads. This is accom-
plished through landscaping, pedestrian
spaces, and the location of buildings on
the property. Where practicable, low-im-
pact development techniques and land-
scaping should be used to promote on site
stormwater infiltration and shading of hard
surfaces. Minimum and maximum parking
ratios must be established for each type of
permitted use.
LU-78 Landscaping, sidewalks, and bike paths will
be integral parts of site design if a develop-
ment is located on an impression corridor or
located within or adjacent to an identified
nonmotorized corridor.
LU-79 Outside storage shall be permitted subject
to performance criteria addressing its quan-
tity and location. This is to ensure compat-
ibility with adjacent uses, so that such stor-
age would not detract from the potential
use of the area for light industry. In all cases,
such storage shall be extensively screened.
LU-80 Where a light industrial use is located adja-
cent to a property with a less intense zoning
designation, the light industrial use bears
the burden of incorporating techniques that
mitigate the visual, noise, dust, and odor
impacts.
LU-81 Uses involving substantial storage or pro-
cessing of hazardous materials, as well as
substantial emissions, should not be per-
mitted in these areas.
LU-82 A wide range of commercial activities may
be allowed to provide increased opportu-
nities for sales tax revenue.
LU-83 The Burlington Northern Santa Fe Railroad
Auburn Yard located within the Railroad
Special Plan Area is considered a compatible
use at its current level of usage. It is not bound
by the policies concerning outside storage
under the existing light industrial designation
Page 916 of 1163
City of Auburn Comprehensive plAn
LU-12Vol. 1as it was an existing use prior to the develop-
ment of this policy. Should BNSF decide to re-
activate its applications to upgrade the yard
to an intermodal facility, the proposal will be
subject to the essential public facility siting
process as defined in the Capital Facilities
Element.
LU-84 Upzone requests to the next zone should
be approved based on the innovations
in transportation and stormwater man-
agement and public amenities proposed
for the development associated with the
request.
Heavy Industrial designation
Description
This designation allows the full range of industri-
al uses, as well as certain heavy commercial uses
that serve the needs of workers in light industries
are also appropriate.
Designation Criteria
1. Previously developed heavy industrial areas;
or
2. Not located along high-visibility corridors;
3. Buffered by the Light Industrial Designation or
otherwise buffered from all other compatible
designations; and
4. Meets the development parameters of the
Heavy Industrial designation.
Implementing Zoning Designations
Heavy Industrial
Policies
LU-85 While this zone should be reserved pri-
marily for the heavier forms of industrial
activities, a wide range of industrial ac-
tivities may be permitted. These heavier
forms of industrial activities may include
outdoor or semi-enclosed manufacturing,
processing, or assembling activities, signif-
icant outdoor storage, and uses involving
substantial storage or processing of haz-
ardous materials. Heavy commercial uses
that serve the needs of workers in heavy
industries are also appropriate.
LU-86 Parking lots must be located and designed
in a manner that softens their appearance
from adjacent public roads. This is accom-
plished through landscaping, pedestrian
spaces, and the location of buildings on
the property. Where practicable, low-im-
pact development techniques and land-
scaping should be used to promote on site
stormwater infiltration and shading of hard
surfaces. Minimum and maximum parking
ratios must be established for each type of
permitted use.
LU-87 Landscaping, sidewalks, and bike paths
will be integral parts of site design if a
development is located on an impression
corridor or located within or adjacent to
an identified nonmotorized corridor.
LU-88 Where a heavy industrial use is located
adjacent to a property with a less intense
zoning designation, the heavy industri-
al use bears the burden of incorporating
techniques that mitigate the visual, noise,
dust, and odor impacts.
PubliC and institutional l and use
designations
Character s ketch
Public and institutional uses will occur in both low-
and high-density environments. For passive uses,
land and views will be protected; limited access to
these areas will be typical. For more active uses,
usability and accessibility will be key features and
new development will be subject to standards re-
flecting programmed space and interconnectivi-
ty. These spaces will be varied in type, providing
service to areas large and small, urban and more
rural in character. Sustainable solutions and inno-
vations that are responsive to the native ecology
will be typical of public and institutional uses.
Values
Character: Community facilities and programs
bring people together and connect residents and
visitors to our natural resources.
Page 917 of 1163
land use element
LU-13 Vol. 1Wellness: Multiple recreation options, and nearby
trails, parks, activities, and events will be readily
accessible to the entire community.
Service: Land use policy supports the provision
of community, health and human services to all
residents.
Economy: Residents and visitors seek Auburn as a
residence or destination because of its natural re-
sources, community events, and community pride.
Celebration: We utilize our open spaces and pub-
lic facilities to promote who we are, our diversity,
and our community pride.
Environment: Residents and visitors will enjoy
open spaces and environmentally sensitive areas,
while encouraging the appreciation of their im-
portance and beauty. Impacts of new develop-
ment on natural resources are considerate of
their sensitivity and importance.
Sustainability: Public and private funds are used
to make investments in land preservation, resto-
ration and protection. Public investments in land
and facilities are considered for their perpetual or
generational value versus short-term motivations.
General Policies
LU-89 The primary purpose of this designation is
to address public needs while taking ad-
vantage of synergies with the adjacent
areas where they are sited.
LU-90 Innovative strategies to integrate the
uses and sites into the areas where they
are sited is encouraged. These strategies
should maximize use of the site while min-
imizing fiscal impacts and impacts to ad-
jacent areas.
LU-91 Increase visibility of resources through
public information campaigns.
LU-92 Appropriate uses include low-intensi-
ty recreational uses, passive use open
areas, protected environmental habitat,
stormwater detention facilities, and similar
low-intensity uses.
LU-93 Promote the use of energy and water con-
servation measures
open space designation
Description
This category shall be applied to areas that are
owned by a public entity and managed in a large-
ly undeveloped character. It includes parks, wa-
tersheds, shoreline areas, significant wildlife hab-
itats, storm drainage ponds, utility corridors with
public access, and areas with significant develop-
ment restrictions.
Designation Criteria
1. Passive parks or undeveloped Parks
Department property;
2. Any site containing a significant developmen-
tal hazard; or
3. Any site containing open space value suita-
ble for public protection without unduly en-
croaching on private property rights.
Implementing Zoning Designations
Open Space
Policies
LU-94 Active parks that provide sports field, ac-
tivity and community centers, cemeteries,
and public buildings should not be desig-
nated as open space.
LU-95 Open space lands are primarily designat-
ed to provide wildlife and aquatic habitat,
flood detention, vegetation and soil pres-
ervation, and view shed protection. Land
designated as open space may be used for
public access to trails, interpretive centers,
education opportunities, and other uses
and facilities that support the purpose of
their designation.
LU-96 Increase distribution of open space and
increase access to open space amenities
throughout Auburn.
LU-97 Enhance restoration, preservation and
protection of natural resources and critical
areas.
Page 918 of 1163
City of Auburn Comprehensive plAn
LU-14Vol. 1LU-98 Seek out opportunities to develop rec-
reation and education opportunities on
public lands or through public–private
partnerships.
LU-99 Increase visibility of resources through
public information campaigns. Continue
to work with regional partners to devel-
op and maintain trail systems that con-
nect Auburn with regional destinations.
LU-100 Build on partnerships with school dis-
tricts to expand public use of school fa-
cilities for recreation and exercise, and to
improve public access to facilities for this
purpose, as appropriate.
Public/Quasi-Public designation
Description
This category includes those areas that are re-
served for public or quasi-public uses. It is intend-
ed to include those of a significant extent, and
not those smaller public uses that are consistent
with and may be included in another designation.
These public uses include public schools, devel-
oped parks, and uses of quasi-public character
such as large churches and private schools. Public
uses of an industrial character are included in the
industrial designation, and small-scale religious
institutions of a residential character are includ-
ed in the residential designation. Streets, utilities,
and other separate uses are not intended to be
mapped separately as Public/Quasi-Public.
Designation Criteria
1. Previously developed institutional uses; or
2. Meets the development parameters of the
Public/Quasi-Public designation.
3. Properties identified in the Airport Master
Plan as Landing Field.
Implementing Zoning Designations
Institutional
Public Use
Landing Field
Policies
LU-101 A responsible management entity and
the purpose for the public/quasi-public
designation should be identified for each
property interest within this designation.
Management policies and plans are ap-
propriate for all lands in this designation.
LU-102 Appropriate uses for this designation in-
clude facilities that serve the needs of the
larger community such as public schools,
active parks, city operated municipal fa-
cilities, large churches, and fire stations.
LU-103 This designation permits a wide array of
uses that tend to be located in the midst
of other dissimilar uses. For this reason,
the following must be considered of new
requests for this designation:
a. The impacts that the designation may
have on the surrounding community.
b. Site-specific conditions that should
be attached to new requests for this
designation that are designed to
mitigate impacts on the surrounding
community.
c. Site-specific conditions that should
be attached to development propos-
als that are designed to mitigate im-
pacts on the surrounding community.
LU-104 Coordination with other public or insti-
tutional entities is essential in the imple-
mentation of this land use designation.
LU-105 Industrial and commercial uses that are
affiliated with and managed by edu-
cational institutions for vocational edu-
cational purposes may be classified as
an institutional use and permitted on a
con¬ditional basis.
LU-106 For the Landing Field (LF) zone, an Airport
Master Plan (AMP) should be developed
that establishes the vision, policies, and
implementation strategies that govern
uses, management principles, and fu-
ture planning efforts. The AMP shall be
incorporated by reference in the Auburn
Comprehensive Plan as an appendix.
Page 919 of 1163
land use element
LU-15 Vol. 1LU-107 Auburn Municipal Airport is included in
the federal airport system - the National
Plan of Integrated Airport Systems
(NPIAS). Participation in the NPIAS is
limited to public use airports that meet
specific FAA criteria. NPIAS airports
are eligible for federal funding of im-
provements through FAA programs. To
maintain eligibility for funding through
FAA programs, the Airport Master Plan
should be periodically updated as con-
ditions change.
LU-108 Uses, activities, and operations within
the LF Airport Landing Field District must
be coordinated and consistent with the
Airport Master Plan.
LU-109 Future expansions of the LF Airport
Landing Field District, for the purpose of
airport uses, activities, and operations,
should be coordinated and consistent
with the Airport Master Plan.
LU-110 While the industrially designated area
east of the Airport is highly suited for
airport related activities, other indus-
trial type uses are now located here.
Therefore, the City will encourage use in
this area to take advantage of its prox-
imity to the Airport.
LU-111 New commercial land uses in proximity
to the airport should be air-related and/
or complementary to the airport.
LU-112 To protect the viability of the Auburn
Municipal Airport the City shall create
an airport overlay that is consistent with
FAA regulations and WSDOT guidance.
LU-113 The City’s zoning ordinance and other
appropriate regulatory measures shall
enforce the airport overlay and the FAR
Part 77 surfaces.
LU-114 The airport overlay shall protect the op-
erations of the Auburn Municipal Airport
by establishing controls on incompatible
land uses and development.
LU-115 The airport overlay should be imple-
mented to manage land uses and de-
velopment around the airport to ensure
compatibility into the future and prevent
incompatible future uses. The regula-
tions applied to properties surrounding
the airport should encourage land uses
that are related to, and benefit from,
proximity to the airport but not restricted
exclusively to only these.
LU-116 The impact of development on air safety
shall be assessed through the City zon-
ing ordinance, FAA regulations, SEPA
review, input from the Auburn Municipal
Airport, and relevant technical guidance.
Appropriate mitigation measures shall
be required by the City.
LU-117 Uses in proximity to the airport that may
create potential operational (e.g. height
or noise) conflicts shall be reviewed
for their consistency to airport oper-
ations and conformance with the FAA
regulations.
LU-118 The airport should be protected from
nonconforming uses and structures
that pose a safety concern to airport
operations.
LU-119 The City shall determine whether non-
conforming uses and structures affect
airport operations and require their
minimization or elimination, at cost to
owner, based on individualized study of
proposals, City regulations, input from
the Auburn Municipal Airport, and rele-
vant technical guidance.
oVerlays, u rban g rowth area, and
sPeCial Planning l and use designations
Character s ketch
These areas help control growth, protect the en-
vironment, and prevent urban sprawl conditions
in our City. For a variety of reasons, specific areas
exist within the City that require further specificity
or focus of land use planning, policy, regulation,
or investment. Overlays, urban growth areas, and
special planning areas may be designated that
help further enumerate a purpose. These areas
are to be designated through the Comprehensive
Plan and treated as a component of the Land Use
Page 920 of 1163
City of Auburn Comprehensive plAn
LU-16Vol. 1Element of the Plan.
Values
Each area designated as an overlay, urban growth
area, or special planning area shall reflect the
values identified in the Core Comprehensive Plan.
General Policies
LU-120 These land use designations must be
consistent with the Growth Management
Act, Puget Sound Regional Council, and
countywide planning policies.
LU-121 Any proposed changes to these desig-
nations must be pursued in coordina-
tion with applicable State, Regional and
County agencies.
u rban separator designation
Description
Urban separators are areas designated for
low-density uses in the King County Countywide
planning policies. They are intended to “protect
Resource Lands, the Rural Area, and environmen-
tally sensitive areas, and create open space and
wildlife corridors within and between communi-
ties while also providing public health, environ-
mental, visual, and recreational benefits.” There
are two primary areas of urban separators, one
on Lea Hill and one on West Hill.
Designation Criteria
Areas designated through the process of
annexation
Implementing Overlay Designations
Lea Hill Overlay
West Hill Overlay
Urban Separator Overlay
Policies
LU-122 The City is obligated to maintain (and not
redesignate) until at least the year 2022,
pursuant to countywide planning poli-
cies and an annexation agreement with
King County.
LU-123 Urban separators are deemed to be
both a regional as well as local concern
and no modifications to development
regulations governing their use may be
made without King County review and
concurrence. Therefore, the areas des-
ignated as “urban separator” on the
Comprehensive Land Use map, will be
zoned for densities not to exceed one
dwelling unit per acre, with lot clustering
being required if a subdivision of land is
proposed.
urban Growth area and Potential annexation
area designation
Description
Urban growth areas and potential annexation
areas are areas located outside of the municipal
city limits of Auburn. They are areas that are an-
ticipated to be incorporated into the City within 10
years of their designation.
Designation Criteria
Potential annexation areas are jointly developed
by cities and the County in which they are locat-
ed. They are based upon countywide growth pro-
jections that are divided among all urban growth
areas within each respective County. Urban
growth areas and potential annexation areas are
distinguished from each other by whether they
have been assigned to a City or not. Urban growth
areas have been identified but have not been as-
signed to a City. Potential annexation areas are
urban growth areas that have been assigned to a
specific City.
Implementing Designations
Urban Growth Area
Potential Annexation Area
Policies
LU-124 Work with King and Pierce County, as
well as nearby cities, to redesignate
urban growth areas into potential an-
nexation areas.
LU-125 Auburn’s Potential Annexation Area is
shown on the Comprehensive Plan Land
Use Map (Map 1.1). Map 1.1 also depicts
Growth Impact Areas. These Growth
Page 921 of 1163
land use element
LU-17 Vol. 1Impact Areas are generally adjacent cit-
ies or unincorporated County lands in
which development that occurs poten-
tially impacts the city of Auburn.
LU-126 The Auburn City Council may revise the
boundaries of the Potential Annexation
Area in the future, in response to:
a. Amendments to King and Pierce
County Urban Growth Areas as spec-
ified in the King and Pierce County
countywide policies
b. Discussions between Auburn and
adjacent jurisdictions regarding
POTENTIAL ANNEXATION AREA
boundaries
c. Discussions with Pierce County con-
cerning the designation of POTENTIAL
ANNEXATION AREA boundaries
d. Changed circumstances relating to
population and employment growth
and projections, urban service feasi-
bility, or similar factors.
LU-127 Develop strategies and agreements for
the review of development and provision
of utilities within potential annexation
areas that have yet to be annexed.
LU-128 Prior to annexation, develop strategies
and agreements that address the order-
ly transition of areas into the City such as
transfer of permit authority, infrastruc-
ture financing, financing of fire and po-
lice services, and interim development
regulations.
transition designation
Description
The Transition Designation following establishes
policies and guidance are intended to provide a
basis for future development of zoning and other
regulatory tools to manage and reduce impacts
from proximity of boundaries between sharper
differences of intensity in land uses and is meant
to apply city-wide.
Designation Criteria
The Designation should apply to areas that are
located between single-family and multifamily
land use designations; between multifamily and
nonresidential land use designations; and be-
tween single-family and nonresidential land use
designations.
Implementing Designations
The Designation and implementing zoning and
other regulatory tools shall generally apply to the
more intense land use designation.
Policies
LU-129 Between single-family and multifamily:
a. Where a multifamily use is pro-
posed to be located adjacent to a
single-family zone, the multifamily
use will bear the burden of provid-
ing an adequate transition of land
use. Mitigating measures that con-
trol light, noise, and dust should be
incorporated into multifamily devel-
opment proposals.
b. Provide non-motorized access
through the site in order to connect
the adjacent land uses.
c. Housing size, type, and orientation
shall be utilized as a means of pro-
viding harmonious transition of the
built environment.
d. Provide a mix of townhomes, duplex-
es, cottage housing and small-scale
multifamily housing.
LU-130 Between multifamily and nonresidential
a. Where a non-residential use is pro-
posed to be located adjacent to a
multifamily zone, the non-residential
use will bear the burden of providing
an adequate transition of land use.
Mitigating measures that control
light, noise, and dust should be incor-
porated into nonresidential develop-
ment proposals.
b. Provide non-motorized access
through the site in order to connect
the adjacent land uses.
c. Provide a mix of townhomes, duplex-
es, cottage housing and small-scale
multifamily housing.
Page 922 of 1163
City of Auburn Comprehensive plAn
LU-18Vol. 1LU-131 Between single-family and
nonresidential:
a. Where a non-residential use is pro-
posed to be located adjacent to a
single-family zone, the non-residen-
tial use will bear the burden of pro-
viding an adequate transition of land
use. Mitigating measure that control
light, noise, and dust should be incor-
porated into nonresidential develop-
ment proposals.
b. Provide non-motorized access
through the site in order to connect
the adjacent land uses.
Critical area o verlay land use
Description
Under the Growth Management Act cities and
counties are required to identify, designate and
protect critical areas. Critical areas include (a)
wetlands, (b) areas with a critical recharging ef-
fect on aquifers used for potable water, (c) fish
and wildlife habitat conservation areas, (d) fre-
quently flooded areas, and (e) geologically haz-
ardous areas.
Designation Criteria
Designation of critical areas includes both crite-
ria that should be applied to the specific type of
critical area as well as buffers and/or setbacks
that are necessary for the protection of the criti-
cal area and/or life and property. Designation of
critical areas is based on best available science as
it applies to local conditions.
Implementing Designations
Wetlands
Critical Aquifer Recharge Areas
Fish and Wildlife Habitat Conservation Areas
Frequently Flooded Areas
Geologically Hazardous Areas
Policies
LU-132 Best available science will be utilized
for the specific designation criteria and
the associated adopted protection stan-
dards and development regulations.
LU-133 Reasonable use provisions will be in-
cluded within the critical area regula-
tions that ensure a property owner is not
denied use of a preexisting parcel, lot or
tract.
LU-134 Exemptions to the critical areas ordi-
nance should be provided for very lim-
ited and justified circumstances such as
maintenance of existing land uses, work
within some types of human-made fea-
tures, limited types of site investigation
work, emergency activities, and certain
types of invasive vegetation control.
LU-135 Critical area regulations will identify the
process and standards for alteration of a
critical area and criteria related to miti-
gation, performance, and monitoring.
special Planning area designation
Description
“Special Planning Areas” consist of Districts, sub-
areas, Impression Corridors, and Gateways with-
in Auburn that warrant additional empha¬sis
in planning, investments, and policy develop¬-
ment. Each may be recognized separately with-
in the Comprehensive Plan, as an Element of the
Comprehensive Plan, or as an subarea plan (dis¬-
cussed below). There are a variety of reasons for
designating and distinguishing a special planning
area, and once designated, a variety of poten¬-
tial outcomes. Reasons for designating a special
planning area include:
• Areas of high visibility and traffic. These areas
create an impression or image of Auburn. It
is therefore particularly important to ensure
that they are attractive and well maintained.
Examples include Auburn Way South and
as¬sociated major highway on- and off-ramps.
• Land use activities that warrant joint planning
between the City and owner/operator. In ad¬di-
tion to developing approaches and strat¬egies
for the land use activity, there may be ad-
ditional emphasis on ensuring compatibility
with surrounding land uses. Examples include,
Green River College, the Auburn Municipal
Airport, and Emerald Downs Thoroughbred
Horse Racetrack.
Page 923 of 1163
land use element
LU-19 Vol. 1• Neighborhoods in which a resident and
mer¬chant live and conduct daily business
and leisure. Neighborhoods may also be dis-
tin¬guished by physical setting, physical sepa-
ra¬tions, and similarity over an area. Examples
include downtown, Lea Hill, and Lakeland.
• Areas with a focused desire to create great¬er
physical and economic cohesiveness. These
may be large planned developments or
clus¬ters. Examples include the Auburn North
Business Area and Mt. Rainier Vista.
• Areas with an existing built environment or an
existing regulatory framework that does not,
in itself, meet the expectations of the seven
val¬ues that underscore the Comprehensive
Plan. Examples include the need for multimodal
connections between West Hill and Lea Hill to
north and downtown Auburn.
Designation Criteria
1. Districts: The geographic limit of districts and
areas that make up this category of Special
Planning Areas extends beyond an alignment
with any particular street, trail, river, stream,
or other linear corridor. Districts may con-
tain other smaller Special Planning Areas,
such as subareas. Additionally, districts are
generally consistent with the geography of
one of the eight “neighborhoods”1 identified in
the 2014 City of Auburn Community Vision
Report. Generally speaking, districts are iden-
tified for the purpose of creating identity. This
means that the land use designations and
overarching policies and implementing regu-
lations are not going to change from one dis-
trict to the next. Instead, Districts are import-
ant for event planning, establishing park and
open space level-of-service standards, and
promoting community identity.
Districts (see Map 1.2)
• West Hill
• North Auburn
• Lea Hill
• Downtown
• South Auburn
1. The eight “neighborhoods” are identified for comprehensive planning purposes only, as neither the City nor its
neighborhoods have elected to officially designate the boundaries of City neighborhoods.
• Plateau
• Lakeland
• Southeast Auburn
2. Subareas: Subareas are smaller in geography
than a district. Though relatively large, multi-
ple subareas may be located within a single
district. Subareas allow for the refinement and
recognition of existing unique characteristics
within a district. Subareas are intended to an-
ticipate, support, and guide long-term growth
and redevelopment through planned devel-
opment and a unique vision for how that area
should look and function in the future. It can
also be used to provide flexibility when there
is uncertainty regarding how an area may be
most appropriately developed in the future.
Twenty-eight (28) subareas currently exist.
These subareas are categorized into five dif-
ferent types of subareas:
• Identified Areas;
• Designatged Areas;
• Economic Development Strategy Areas (a
Designated Areas sub-category);
• Areas of Concern (another Designated Areas
sub-category; and
• Adopted Areas.
Uses, intensities, and infrastructure develop-
ment determined for each subarea or planned
area through individual planning processes.
Connectivity throughout the planned area, and
connections to multimodal transportation oppor-
tunities outside of the planned area are also em-
phasized through the individual planning process.
The result of each individual planning process is
the adoption of Comprehensive Plan element or
subarea plan for the particular subarea by City
Council. Each Plan element must be consistent
with the general goals, objectives, and policies
of the Comprehensive Plan, and once adopt-
ed, subarea plans are intended to guide the fu-
ture development of each respectively adopted
subarea.
Page 924 of 1163
City of Auburn Comprehensive plAn
LU-20Vol. 12a. Identified Areas: Identified areas are iden-
tified as a subarea within the Comprehensive
Plan, but have not been established on the
Comprehensive Plan Map. Therefore, the specific
and detailed boundaries of an identified subarea
have not been defined. Identification of a subarea
within the Comprehensive Plan occurs by official
action of the City Council.
Identified Areas
• Auburn Golf Course
• GSA/Boeing
• Green River College
• Mary Olsen Farm
• Les Gove Campus
• Emerald Downs
• Auburn High School
2b. Desginated Areas: Designated Areas have
been designated on the Comprehensive Plan
Map, which defines the specific and detailed
boundaries of the area. Designation of an
area on the Comprehensive Plan Map occurs
by official action of the Auburn City Council. It
is intended that future development of these
areas will be guided by individual Plan ele-
ment or subarea plan of the Comprehensive
Plan. The future subarea plan will either sup-
plement existing goals, policies, and implement
strategies, or replace existing Comprehensive
Plan designations and policies for the area
within the specific and detailed boundary.
Designated Areas (see Map 1.3)
• Auburn Municipal Airport
• BNSF Rail Yard
• Stuck River Road
• Lakeview
• Mt. Rainier
2b(1). Designated Areas - Areas of Concern:
Areas of Concern are a specific type (or sub-
category) of designated area. Areas of Concern
are established because they represent an area
that features a lack in the infrastructure and ser-
vices (e.g. municipal water and sewer service,
urban roads, traffic demand, and storm water
management) necessary to support increase in
density or other development. These areas re-
quire a close assessment of and an emphasis on
infrastructure development and planning to sup-
port further development. While this Plan may
not fully represent the intensity of uses that could
ultimately be supported in these areas (in part
due to the current weakness of the City’s infra-
structure to support future growth). Development
intensification within the Area of Concern needs
to be coordinated with the necessary infra-
structure and services to support growth.
Designated Areas - Areas of Concern (see Map
1.3):
• AWS/Auburn Black Diamond Rd.
• Pike Street NE
• 8th Street NE
2b(2). Designated Areas - Economic
Development Strategy Areas: The Economic
Development Strategy Areas are a specif-
ic type (or subcategory) of designated area.
In 2005, City Council adopted six Economic
Development Strategy Areas under Resolution
No. 3944. These areas, initially identified by a
focus group of diverse business and commu-
nity interests, are targeted for population and
employment growth within the planning hori-
zon of the City’s 20-year growth target (2031).
By 2012, the City Council added three addi-
tional economic development strategy areas ,
bringing the total to nine (9) strategy areas.
During the City’s 2015 update of the
Comprehensive Plan the list of economic de-
velopment strategy areas to reflect current
conditions and status of these areas. As such,
two of the original six economic development
strategy areas was removed from the list. The
Urban Center, one of the original six develop-
ment strategy areas, was removed as it is no
longer a designated area. The Urban Center,
also known as “Downtown Auburn” or the
“Downtown Urban Center” is an adopted area
(since 2001) and features its own subarea plan.
The Auburn Environmental Park (AEP)/Green
Zone has also been removed as an econom-
ic development strategy area. The AEP/Green
Zone economic development strategy area
Page 925 of 1163
land use element
LU-21 Vol. 1was previously zoned EP, Environmental Park
Zone. The intent of this zone was to encourage
economic development in the form of medi-
cal, biotech and “green” technologies includ-
ing energy conservation, engineering, water
quality and similar uses. Through Ordinance
No. 6660 City Council rezoned the AEP/Green
Zone from EP, Environmental Park Zone to M-1,
Light Industrial, hereby effectively removing the
need to designate the AEP/Green Zone as an
specific economic development strategy area.
The current economic development strate-
gy areas are included below. The bounda-
ries of the economic development strategy
areas are incorporated as designated sub-
areas “Designated Areas – Special Planning
Areas” map of the Land Use Element.
Designated Areas -Economic Development
Strategy Areas (see Map 1.3)
• A St SE (corridor)
• Auburn Way South (AWS) Corridor
• Auburn Way North (AWN) Corridor
• M St SE (between AWN and AWS)
• SE 312th/124th Ave
• NW Manufacturing Village
• 15th St SW/West Valley Hwy N
2c. Adopted Areas: Adopted Areas include
an Adopted Subarea Plan incorporated into
the Comprehensive Plan that establishes the
purpose of its designation, goals and policies,
and implementation strategies. Adoption of a
subarea plan occurs by official action of the
City Council. As an adopted document of the
Comprehensive Plan, the subarea Plans are
subject to a review, and if necessary, revision to
address changes in conditions, issues, or even
characteristics of the planned areas. The review
and revision a subarea Plan will also include the
review and, if necessary, a revision of zoning
regulations and architectural design standards.
Adopted Areas (see Map 1.4)
• Downtown (Ordinance No. 5549)
• Auburn Adventist Academy (Resolution No.
2254)
• Auburn North Business Area (Resolution No.
2283)
• Lakeland Hills (Resolution No. 1851)
• Lakeland Hills South (County H.E. Case Z15/
UP70)
• Northeast Auburn (Ordinance No. 6183)
3. Impression Corridors: Impression corridors
are aligned with a particular street, trail,
river, stream, or specific linear corridor. Some
corridors may be part of a subarea, in which
case the Impression Corridor policies are
additive to a subarea plan. Impression cor-
ridors enhance the areas in which residents,
businesses, visitors move throughout the City.
The benefit of an impression corridor is two-
fold: residents know that the City is invested
in the aesthetic of main thoroughfares and
businesses can build off of the design and
aesthetic provided by the impression cor-
ridor. Improvements or modification to im-
pression corridors consist of aesthetic sig-
nage, landscaping, and monument features,
and the rehabilitation or removal of existing
buildings and property. Impression Corridor
boundaries and policies are formally des-
ignated by adoption of the Comprehensive
Plan. Priority is given to the impression cor-
ridors that are a part of a subarea. Priority
impression corridors are the thoroughfares
in which residents, businesses, visitors move
throughout a specific subarea. The priority
impression corridors are italicized below.
Impression Corridors (see Map 1.5)
• Auburn Way North
• Auburn Way South
• Auburn Black Diamond Road
• A Street SE/Auburn Avenue
• C Street SW
• Division Street
• M Street/Harvey Road
• Main Street
• 8th Street NE
• 15th Street SW
• West Valley Highway
• 15th Street NW/NE
• 132nd Ave SE
Page 926 of 1163
City of Auburn Comprehensive plAn
LU-22Vol. 1• SE 320th Street
• SE 312th Street
• SE 304th Street
• R Street
• Lake Tapps Pkwy SE
• Green River Road
• 37th Street NW
• S 277th Street
• Interurban Trail
• Green River
• White River
• Mill Creek
4. Gateways: Gateways are specific plac-
es, intersections, or blocks within the City.
These essential locations are established
because they constitute the first impression
into of Auburn. Gateways are intended to
create a “welcome” into distinct areas of the
City or into the City itself. They are there-
fore highly important to plan, construct,
maintain, and enhance their appearance
and function. Gateway locations and pol-
icies are formally designated by adoption
of the Comprehensive Plan. Priority is given
to those gateways that are along an prior-
ity impression corridor. Priority gateways
function as a entrance to an impression
corridor. The priority gateways are itali-
cized below.
Gateways (see Map 1.6)
• Auburn Way North and Auburn Avenue
(where the roads converge)
• East Main Street and M Street NE/
SE (at the intersection)
• Auburn Way South and 4th Street SE
• Auburn Way S and 6th Street SE
• West Main Street between C
Street NW and B Street N W
• All roads with an entry into the city
• Hwy 167 Off Ramps
• SR 18 Off Ramps
Implementing Designations
Planned Unit Development (PUD)
Master Plans
Policies
District Policies.
LU-123 Through regulation, capital investment,
and community planning, identify, pro-
mote and market district identity.
Subarea Policies.
LU-124 Each subarea will contain its own vision,
goals, policies and strategies.
LU-125 BNSF Rail Yard - This approximately 150
acre Special Planning Area is located
in the south-central portion of the City
and surrounded by SR-18 to the North,
Ellingson Road to the South, C Street SW
to the west and A Street SE to the East.
The Special Planning Area should con-
sider both sides of C Street and A Street.
Consideration should be given to:
• The needs of Burlington Northern.
• Providing pedestrian, bicycle and
vehicular access across the site to
connect the southeast and south-
west sides of the city.
• Providing a more visually appealing
“entry corridor” into the City from
the south along A and C Streets.
• Allowing for a mix of uses including
single and multifamily development
and commercial and industrial uses
where appropriate.
LU-126 Stuck River Road - A portion of the Stuck
River Road Special Planning Area is cur-
rently the site of a large sand and gravel
mining operation. This area and other
adjacent land comprising a total of ap-
proximately 664 acres has been desig-
nated as a long term resource area (min-
eral resource area), so development of
the Special Area Plan for this area should
be a low priority as mining is expected
to continue on this site for as long as 30
years. The land uses for the Stuck River
Road Special Planning Area will be de-
termined through the subarea planning
process and the City Council’s adop-
tion of the subarea plan. Potential land
uses applied through the subarea plan-
ning process could include single-family
Page 927 of 1163
land use element
LU-23 Vol. 1residential, multi-family residential,
commercial, institutional, and recre-
ational. Some light industrial uses may
be appropriate for consideration and
designation through the subarea plan-
ning process if the uses are “industrial or
business park” in character, conducted
entirely within an enclosed building, and
exhibit a high degree of performance
standards and are non-nuisance in na-
ture and if appropriately limited in ex-
tent and location. A mix of housing types
ranging from single family residential to
multi-family residential is appropriate
for this planning area. The subarea plan
should be adopted taking into consider-
ation the period during which mining is
expected and the intent of the ultimate
development of the area. An active per-
mit has been processed by the City with
respect to the mining activity on a por-
tion (approximately 664 acres) of the
mineral extraction operation. The permit
process should continue, however, any
permit for mining in the mineral resource
area should be granted for the life of the
resource, with reviews conducted peri-
odically (every five years) to determine
whether changes in the originally pro-
posed mineral extraction operation have
arisen and give rise to the need for ad-
ditional or revised permit conditions to
address the new impacts (if any) of any
such changes. Any permit applications
for additional acreage within the miner-
al resource area shall be processed by
the City.
Development of this area should not
occur until adequate public facilities are
available to support the development
consistent with City concurrency policy.
The City recognizes the potential for ex-
panding the Stuck River Road Special
Planning Area to include additional
land east of Kersey Way and north of the
Covington-Chehalis power line ease-
ment, and will consider a proposal by all
affected property owners. If the area is
expanded, the number of non-multiple
family, non-manufactured home park
dwellings units may be increased pro-
portionate to the increase in acreage.
Any such proposal shall specifically ap-
portion the types and quantities of de-
velopment to occur within each sepa-
rate ownership.
LU-127 Lakeview - The Lakeview subarea is cur-
rently the site of two independent sand
and gravel mining operations. While
mining activity continues in the east-
ern operation, indications in 1995 are
that the western operation has ceased.
Activity in the western portion is now lim-
ited to a concrete batch plant and future
site reclamation. Following reclamation,
the area should be developed as a pri-
marily single family residential neigh-
borhood of low to moderate urban den-
sity. A planned development would be
particularly appropriate for this approx-
imately 235 acre site. The permitted de-
velopment density of the site will depend
heavily upon the ability of the transpor-
tation system near the site to handle the
new uses. Consideration shall be given
to the environmental, recreational and
amenity value of White Lake, the histor-
ical and cultural significance, as well as
tribal ownership and jurisdiction of the
Muckleshoot Tribe in the development
of the Lakeview Plan element. Permit
applications have been accepted and
are currently being processed by the
City with respect to the mining activity
on the eastern portion of the area. The
permit process should continue, how-
ever, any permit for continued mining in
this portion of the area should be limited
to 10 years to encourage completion of
the mining, and subsequent reclama-
tion by the property owner in prepara-
tion for development. The Lakeview Plan
element should be adopted prior to the
City’s acceptance or processing of any
other permit applications for the min-
ing operation in the Lakeview Special
Planning Area. The environmental in-
formation and analysis included in the
Final Environmental Impact Statement
for Lakeview (November 1980), shall be
considered in the development of the
Page 928 of 1163
City of Auburn Comprehensive plAn
LU-24Vol. 1Lakeview Plan element. While heavy
commercial or industrial uses would not
be appropriate as permanent uses of this
area, conversion of the area now zoned
for heavy industry to office commercial
(or similar) uses would be appropriate.
LU-128 Mt. Rainier Vista - This 145 acre subarea
is located south of Coal Creek Springs
Watershed. Overall development of the
Mt. Rainier Vista subarea plan shall be
consistent with the following conditions:
1. Primary consideration in use and
development of the property shall
be given to protection of Coal Creek
Springs’ water quality. Development
types, patterns and standards de-
termined to pose a substantial risk to
the public water source shall not be
allowed.
2. The maximum number of dwelling
units will be determined as part of
any sub-area plan process. Dwelling
units shall be located within portions
of the property where development
poses the least risk of contamination
for Coal Creek Springs. Lands upon
which any level of development would
have a high risk for contaminating the
water supply shall not be developed,
but would be retained as open space.
The development pattern shall provide
for a logical transition between areas
designated for rural uses and those
designated for single family residential
use. All dwelling units shall be served
by municipal water and sanitary sewer
service, and urban roads. If 53rd
Street S.E. is the major access to serve
the Special Planning Area, the devel-
oper will be responsible for developing
the street to urban standards, from the
property owners’ eastern property line
that abuts 53rd Street, west to the in-
tersection of 53rd and Kersey Way.
3. Percolation type storm sewer dispos-
al systems shall not be permitted. All
surface water drainage shall be con-
veyed consistent with the City’s current
storm drainage standards. Treatment
of stormwater shall occur prior to its
discharge to any surface water body,
consistent with standard public works
or other requirements in general effect
at the time of development.
4. The site shall be zoned temporari-
ly, at one unit per four acres, until the
sub-area plan is completed and the
long-term urban zoning determined.
5. The Mt. Rainier Vista special plan-
ning area boundary may be modi-
fied through the development of the
subarea plan.
6. The Mt. Rainier Vista and Stuck River
Road Special Planning Areas shall be
coordinated subarea plans.
Designated Areas - Areas of Concern Policies.
LU-129 AWS/Auburn Black Diamond Rd – The
area between Auburn-Black Diamond
Road and the Burlington Northern
Railroad currently lacks urban facil-
ities necessary to support urban devel-
opment. Major development propos-
als shall be carefully assessed under
SEPA to ensure that the development
can be supported by the available fa-
cilities. Once property owners are able
to demonstrate to the City that they
can provide urban services (municipal
water and sewer service, urban roads
and storm water management) neces-
sary to support the intensity of develop-
ment proposed within the entire area,
the Plan designation and zoning for this
area should be changed to an urban
residential or commercial classification.
The appropriate classification(s) shall
be determined after a review of the de-
velopment proposal and the pertinent
Comprehensive Plan policies.
LU-130 Pike Street NE – The area located north
of 8th NE, east of Harvey Road, and
south of 22nd NE is inadequately served
by residential arterials. No increase
in density or other development which
would increase traffic demand in this
area should be approved.
LU-131 8th Street NE – The areas paralleling 8th
Street NE located between Auburn Way
and M Street are designated for multiple
Page 929 of 1163
land use element
LU-25 Vol. 1family residential while 8th Street NE is
designated as a minor arterial. However,
the road is not currently constructed to
this standard and is not able to support
current traffic demand adequately. The
Plan designation would greatly increase
traffic volumes. Implementation of the
Plan designations should not occur until
8th Street NE is constructed to the ade-
quate arterial standard and water ser-
vice is upgraded. Up zones should not be
granted from current zoning until these
stems are upgraded or guaranteed.
Designated Areas - Economic Development
Strategy Ares Policies.
LU-132 The City should adopt a formal subarea
plan for each of the seven economic de-
velopment strategy areas (listed below)
as an element of the Comprehensive
Plan. Each economic development strat-
egy area subarea plan should identify
the uses, intensities, and infrastructure
development necessary to support the
types of business and activities that are
most consistent with community aspira-
tions. Each subarea plan should address
and include policies regarding the ex-
pected level of housing density (or resi-
dential growth targets) and employment
growth targets.
• Auburn Way South Corridor
• Auburn Way North Corridor
• NW Auburn Manufacturing Village
• 15th St. SW/C St. SW/W Valley Hwy. N
• A St. SE
• SE 312th St. /124th Ave SE
• M St. SE between Auburn Way N and
Auburn Way S
Adopted Areas Policies.
LU-133 Adoption or revision of a subarea plan
will be treated as a comprehensive plan
amendment and will comply with the
Growth Management Act, Countywide
planning policies, Vision 2040, and the
Core Comprehensive Plan.
LU-134 Adventist Academy - Adopted under
Resolution No. 2254 on November 14,
1991. The Auburn Adventist Academy is
Special Planning Area (Adopted Area)
is a multi-use campus operated by the
Western Washington Conference of
Seventh-Day Adventists. The Campus
plays a large role in the Western
Washington Conference of Seventh-
Day Adventists’ private elementary
and secondary education system in
Washington and hosts many communi-
ty events as well as an annual region-
al camp meeting for Adventists from
Washington and around the world.
The Campus previously housed Harris
Pine Mill, a furniture manufacturer, for
many years. The Mill provided finan-
cial benefit to the Academy’s budget
and provided employment opportuni-
ties, learning experiences, and voca-
tional education for Academy students.
The Academy continues to include in
its plan industrial uses that support
the mission of the school financial-
ly. The reuse of existing mill buildings
and redevelopment of buildings lost
to a fire in 1989 are the focal points of
the current industrial development. In
addition to institutional and industrial
uses, the Academy is also operates a
landing strip and associated aircraft
hangars for student aviation and flight
training. A single family subdivision is
located to the south of the airstrip. In
addition to these uses, the Academy
wishes to allow development of uses
such a multi-family and senior housing
and assisted living and memory care
which will generate perpetual revenue
through a long-term land lease on a
portion of the Campus lying generally
north of Auburn Way South and south
of 32nd Street S.E. that will direct-
ly aid its mission. The financial bene-
fit from these uses will allow funding
an endowment, subsidize student tui-
tion, provide financial aid for students
needing tuition assistance, for new
educational programs, for additional
faculty, facility maintenance and up-
grades, and other needs. The plan
focuses on provides predictability to
planning, zoning, subdivision, and de-
velopment decisions within the Special
Page 930 of 1163
City of Auburn Comprehensive plAn
LU-26Vol. 1Planning Area (Adopted Area) made by
the City.
LU-135 Auburn North Business Area - Adopted
under Resolution No. 2283 on March 2,
1992. The Auburn North Business Area
Special Planning Area Plan was the
result of a comprehensive planning
study due to increased development
pressure north of the Central Business
District. Since the Central Business
District, which contains Downtown, the
core of Auburn, is adjacent to these
areas, future development in this area
is crucial. A comprehensive and cohe-
sive direction was also needed based
on increased development proposals
and rezone requests. In addition to de-
velopment concerns, many of the con-
siderable undeveloped parcels contain
wetlands. All of these factors made de-
velopment controls beyond zoning and
development regulations advisable.
LU-136 Lakeland Hills - Adopted under
Resolution No. 1851 on April 18, 1988.
Lakeland Hills area lies between the
Stuck River and the southern City lim-
its of Auburn in the most southwestern
part of the City. The area consists of
planned residential and commercial
subdivisions, and is predominate-
ly residential in nature, offering a
range of housing types, including sin-
gle family and multi-family dwellings.
The Lakeland Hills Plan was intended
to provide long-term predictability to
both the City and potential developers.
As a planned community, development
and design must be consistent with the
policy guidance of the Lakeland Hills
Plan.
LU-137 Lakeland Hills South - Approved under
Pierce County Hearing Examiner Case
Z15/UP70.Lakeland Hills South lies
south of the Lakeland Hills special plan
area and is the most southwestern part
of the City. The area is predominate-
ly residential, allowing for a range of
housing types, with commercial uses,
including Lakeland Town Center, in the
center. Nonresidential uses, including
civic, religious, and municipal ser-
vices are allowed throughout the area
through an Administrative Use Permit.
Unlike Lakeland Hills, Lakeland Hills
South was accepted into Auburn was
a Planned Unit Development (PUD).
The Lakeland Hills PUD, original-
ly the Lakeland Hills South Planned
Development District (PDD), was ap-
proved under Pierce County Hearing
Examiner Case no Z15-UP70 in 1990.
Lakeland Hills South PUD is intended to
provide enhanced flexibility to develop
a site through innovative and alterna-
tive development standards. As a PUD,
specific development and design stan-
dards are prescribed.
LU-138 Auburn Downtown Plan (Urban
Center) - Adopted under Ordinance
No. 5549 on May 21, 2001. Downtown
Auburn is the business, governmental,
and cultural hub of Auburn, its phys-
ical and cultural heart. Many stores,
restaurants, service providers, and
small offices are well-represented
throughout this district. Downtown
hosts many community events and
activities, such as the weekly Auburn
International Farmers Market in the
summer, Soundbites! Concert Series
(in the City Hall Plaza) and the Veterans
Day Parade. Downtown features pub-
lic art that includes temporary in-
stallations such as Pianos on Parade
and a permanent outdoor Downtown
Sculpture Gallery with rotating pieces.
This dynamism is possible because the
district is a collection of uses that co-
exist in close proximity to one anoth-
er. Due to the value, importance, and
complexity of this district, The Auburn
Downtown Plan identified four gener-
al needs to be addressed by the plan:
• Update of the existing plan
in order to continue Downtown
revitalization
• Concern over the reopening of
Stampede Pass
• Multiple large projects proposed
for Downtown
Page 931 of 1163
land use element
LU-27 Vol. 1• Scarce private investment
In conjunction with project-based
items, a regulatory element that
emerged from the goals of the Auburn
Downtown Plan was the Downtown
Urban Center (DUC) zoning district,
which was established in 2007. While
the DUC zoning district is intended
specifically to address the needs of
downtown, though the implemen-
tation of policies identified by the
Downtown Auburn Plan , many chal-
lenges related to public and private
investment, development, and strate-
gic planning have yet to be addressed
as downtown has evolved.
LU-139 Northeast Auburn Special Plan Area –
Adopted under Ordinance No. 6183 on
June 5, 2008. The Plan was prepared
in fulfillment of the policies includ-
ed in the Comprehensive Plan for the
area between Auburn Way North and
the Green River, south of 277th Street
(52nd Street NE) and north of approx-
imately 37th Street NE in the City of
Auburn (Map No. 14.2). The planning
area was narrowed to an area cover-
ing approximately 120 acres, north of
45th Street NW and between Auburn
Way North and the existing I Street NE
right-of-way. The Northeast Auburn/
Robertson Properties Special Area
Plan focuses on proposed develop of
the Auburn Gateway project area, a
60-acre group of properties owned or
under consideration for purchase by
Robertson Properties Group, owners
of the Valley 6 Drive-In Theater. The
plan calls for a mix of office, retail, and
multifamily development under a new
zoning designation (C-4, Mixed Use
Commercial) for the central portion of
this planning area, created to accom-
modate mixed use development. The
plan calls for phased development in
coordination with the provision of new
roads, stormwater and other utilities,
and flood management measures.
Impression Corridor Policies.
LU-140 Create specific plans for each iden-
tified corridor, outlining development
policies and regulations, necessary
capital improvements, and imple-
mentation strategies. In the absence
of any specific corridor plans, this
section contains general policies that
are to be applied within designated
impression corridors.
LU-141 Coordinate corridor planning, de-
sign, construction, and maintenance
with other agencies, such as BNSF, the
Muckleshoot Indian Reservation, and
the Washington State Department
of Transportation. Where one agen-
cy may more effectively manage the
corridor, management or ownership
consolidation is appropriate.
LU-142 Promote the elimination or renova-
tion of existing derelict or unmain-
tained structures, signs, fences, and
properties along impression corridors
through regulatory or enforcement
mechanisms
LU-143 Work with private and public property
owners to educate, create incentives,
and enforce regulations that are in-
tended to improve the overall ap-
pearance of identified corridors.
LU-144 Emphasize the design, orientation,
construction materials, landscaping,
and site layout for development pro-
posals of new and existing buildings
along impression corridors. New con-
struction and the renovation of exist-
ing buildings create important oppor-
tunities for enhancing the appearance
of impression corridors.
LU-145 Establish regulations that ensure co-
ordinated, attractive commercial
signage is of an appropriate size and
quantity. Signage regulations along
these corridors may be different than
those in other areas.
LU-146 Take advantage of opportunities to
provide informational signs, wayfind-
ing signs, and traffic control signs that
Page 932 of 1163
land use element
LU-28 Vol. 1are attractive, useful, and integrated
into a larger citywide signage plan or
policy.
LU-147 Outdoor storage of materials, invento-
ry, and other goods and off-street sur-
face parking should be located at the
rear of the property. If outdoor storage
cannot be located in the rear of the
property, then it should be screened
from view from adjacent rights-of-way.
LU-148 Design, construct, and enhance im-
pression corridors to accommodate
multimodal uses.
LU-149 Design and construct vehicular access
points in a manner that consolidates
access points serving multiple uses.
LU-150 Signage, landscaping, and monument
features should be used to establish
prominent access points.
LU-151 Discourage aerial utilities.
LU-152 Invest in impression corridors by ac-
quiring rights-of-way, constructing
and widening sidewalks, installing
landscaping, building center medi-
ans, constructing parklets, providing
street furniture, and constructing other
improvements.
Gateway Policies.
LU-153 Prioritize by rank all gateways and de-
velop potential opportunities and de-
signs for each location.
LU-154 Develop land use regulations that in-
corporate gateway priorities and con-
cepts into private development pro-
posals that are located at identified
gateways.
LU-155 Coordinate with the Washington State
Department of Transportation to un-
derstand options and implement ac-
tions at gateway location. Many of
the gateway locations are within the
WSDOT right-of-way.
LU-156 Develop design layouts for gateway lo-
cations. Designs will identify key areas
that greet residents and visitors as they
enter the City or downtown center, op-
portunities for signage and monument
features, and landscaping.
LU-157 Maintain established gateways.
Page 933 of 1163
LAKELAND HILL
SOUTH
LAKELAND HILLS
ACADEMY
DOWNTOWN
NORTHEAST AUBURN
AUBURN NORTH
BUSINESS AREA
TS18
TS18
TS167
TS167
MUCKLESHOOT
CASINO
A ST SEB ST NWAUBURN WAY SM ST SEI ST NEC ST SWAUBURN WAY NR ST SE124TH AVE SEWEST VALLEY HWY NC ST NWS 277TH ST
C ST NE15TH ST SW
W MAIN ST
15TH ST NW
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L AK E T A P P SP K W Y SEE MAIN ST 132ND AVE SE51ST AVE S21ST ST SE
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ARDRDSE 112TH AVE SER ST SE112TH AVE SEDOGWOOD ST SE1 7 T H ST SE
30TH ST NE
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EVERGREEN W A Y SE 116TH AVE SESE 304TH ST
F ST SEAdopted Areas
Downtown Urban Center
Heavy Commercial
Heavy Industrial
Public/Quasi-Public
Light Commercial
Light Industrial
Moderate Density Residential
Multiple-Family
Neighborhood Commercial
Neighborhood Commercial Overlay
Open Space
Residential Conservancy
Residential Transition Overlay
Single Family
Auburn City Limits
Potential Annexation Areas
Water Features
Lea Hill Overlay (Ordinance: 5346 & 6121)
West Hill Overlay (Ordinance: 6122)
Urban Separators Overlay
Information shown is for general reference purposes
only and does not necessarily represent exact
geographic or cartographic data as mapped. The
City of Auburn makes no warranty as to its accuracy.
Zoning map is current through Ordinance No. 6698,
December 17, 2018
¬Map ID: 6208
Printed On: 9/14/2022
City of Auburn Comprehensive Land Use
0 1,000 2,000 3,000 4,000 5,000
FEET
Page 934 of 1163
maP 1.2 – distriCts maP
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C ST SW8TH ST NE
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RIVERWALK DR SE15TH ST NW
INDUSTRYDRSWTERRACEDRNWW MAIN ST51STAVESS 316TH ST
37TH ST NE
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BOUNDARY BLVD SW
15TH ST SW
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COVINGTON
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PIERCE COUNTY
KING COUNTY
ALGONA
HWY164
HWY18HWY167DOWNTOWN
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NORTH AUBURN
SE AUBURN
LAKELAND
SOUTH AUBURN
LEA HILL
WEST HILL
Printed Date: 1/9/2019
Map ID: 6094
0 ¼½¾1
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The information shown and/or distributed
is for general reference purposes only
and does not necessarily represent exact
geographic or cartographic data.
The City of Auburn makes no warranties as to its accuracy.
Map is current through Ordinance No. 6584 & 6698,
December 17, 2018
Lake TappsWhite RiverW
hite River
Green River
Green River
City LimitsCity Limits
Districts
(Map 1.2)
Special Planning Areas
City Limits
KENT
Page 935 of 1163
S277THST
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COVINGTON
FEDERAL WAY
SUMNER
PACIFIC
PIERCE COUNTY
KING COUNTY
ALGONA
HWY164
HWY18HWY167DOWNTOWN
PLATEAU
NORTH AUBURN
SE AUBURN
LAKELAND
SOUTH AUBURN
LEA HILL
WEST HILL
Printed Date: 1/9/2019
Map ID: 6094
0¼½¾1
Mi
The information shown and/or distributed
is for general reference purposes only
and does not necessarily represent exact
geographic or cartographic data.
The City of Auburn makes no warranties as to its accuracy.
Map is current through Ordinance No. 6584 & 6698,
December 17, 2018
Lake TappsWhite RiverW
hite River
Green River
Green River
City LimitsCity Limits
Districts
(Map 1.2)
Special Planning Areas
City Limits
KENT
ma P 1.3 – designated areas
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EASTVALLEYHWYESE 281ST ST
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INDUSTRYDRSWTERRACEDRNWW MAIN ST51STAVESS 31 6TH ST
37TH ST NE
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COVINGTON
FEDERAL WAY
SUMNER
PACIFIC
PIERCE COUNTY
KING COUNTY
ALGONA
HWY164
HWY18HWY167NW AUBU RN
MANUFACTURING
VILLAGE
AUBURN BLACK
DIAMOND RD SE
8TH ST NE
15TH ST SW/C
ST SW /WEST
HIGHWAY N
WEST
AUBURN
SE 312TH
ST/124TH
AVE SE
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ST NE
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AUBURN
WAY N
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CORRIDOR
A ST SE
MOUNT
RAINIER
VISTA
STUCK
RIVER ROAD
LAKEVIEW
Printed Date: 1/15/2019
Map ID: 6061
0 ¼½¾1
Mi
The information shown and/or distributed
is for general reference purposes only
and does not necessarily represent exact
geographic or cartographic data.
The City of Auburn makes no warranties as to its accuracy.
Map is current through Ordinance No. 6584 & 6698,
December 17, 2018
Lake TappsWhite RiverW
hite River
Green River
Green River
City LimitsCity Limits
Designated Areas
(Map 1.3)
Proposed Special Planning Areas
City Limits
KENT
Designated Areas
Page 936 of 1163
maP 1.4 – adoPted areas
S 277TH ST
C ST SW8TH ST NE
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RIVERWALK DR SE15TH ST NW
INDUSTRYDRSWTERRACEDRNWW MAIN ST51STAVESS 31 6TH ST
37TH ST NE
WESTVALLEYHWYN3RD ST SE
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3RD ST NW 124THAVESE4TH ST S E
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COVINGTON
FEDERAL WAY
SUMNER
PACIFIC
PIERCE COUNTY
KING COUNTY
ALGONA
HWY164
HWY18HWY167DOWNTOWN
LAKELAND
HILLS
ACADEMY
AUBURN NORTH
BUSINESS AREA
NORTHEAST
AUBURN
LAKELAND
HILL
SOUTH
Printed Date: 1/9/2019
Map ID: 6093
0 ¼½¾1
Mi
The information shown and/or distributed
is for general reference purposes only
and does not necessarily represent exact
geographic or cartographic data.
The City of Auburn makes no warranties as to its accuracy.
Map is current through Ordinance No. 6584 & 6698,
December 17, 2018
Lake TappsWhite RiverW
hite River
Green River
Green River
City LimitsCity Limits
Adopted Areas
(Map 1.4)
Special Planning Areas
City Limits
KENT
Adopted Areas
Page 937 of 1163
ma P 1.5 – im Pression Corridors 132ND AVE SEWEST VALLEY HWY S8TH S T N E
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RIVERWALK DR SEB ST NWA ST NEW MAIN STTERRACE DR NWEAST VALLEY HWY ER ST SE51ST AVE SS 316TH ST
37TH ST NE
SE 304TH ST
3RD ST NW
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AUBURN WAY SM ST NEC ST NWBOUNDARY BLVD SW 112TH AVE SE124TH AVE SESE 320TH ST
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C ST SW15TH ST NW
10TH S T NE
ORAVETZ RD SELAKE TAPPS PKWY SE
17T H S T SE
S E 3 0 4 T H S T
WEST VALLEY HWY N41ST ST SED ST NEA ST SED ST NWPEASLEY CANYON RD S
C ST SWEDGEWOOD
FEDERAL WAY
SUMNER
PACIFIC
KENT
PIERCE COUNTY
KING COUNTY
ALGONA
AUBURN
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167
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Impression Corridors 0 ¼½¾1
Mi
Map ID: 6070
Printed Date: 1/9/2019
W
hite River
White RiverGreen River
Mill CreekMill Creek
Lake Tapps
Impression Corridors Special Planning Areas
(Map 1.5)
Information shown is for general reference purposes
only and does not necessarily represent exact
geographic or cartographic data as mapped. The
City of Auburn makes no warranties as to its accuracy.
Map is current through Ordinance No. 6698,
December 17, 2018Interurban TrailAUBURN BLACK DIAMOND RDDIVISION STGREEN RIVER RDGreen River
Page 938 of 1163
maP 1.6 – gateways maP
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ASTSEAuburn Ave29TH ST SE 17 TH ST SE
3RD ST NE
EASTVALLEYHWYESE 281ST ST
RIVERWALK DR SE15TH ST NW
INDUSTRYDRSWTERRACEDRNWW MAIN ST51STAVESS 31 6TH ST
37TH ST NE
WESTVALLEYHWYN3RD ST SE
SE 304TH ST
3RD ST NW 124THAVESE4TH ST S E
L
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PKWY SEISTNE SE 312TH ST
BOUNDARY BLVD SW
15TH ST SW
SE 320TH ST
3 7TH ST NW
10TH ST NW
ASTNWSE304THWAYLEAHILLR D S E
16TH ST NW
CROSS ST SE
6TH ST SE
15TH ST NE
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LLSWAYSER ST SEM ST SEO ST SWM ST NEC ST NW112THAVESEORAVETZRDSEDSTNWRONCROCKETTDRNW104THAVESEEDGEWOOD
COVINGTON
FEDERAL WAY
SUMNER
PACIFIC
PIERCE COUNTY
KING COUNTY
ALGONA
HWY164
HWY18HWY167
Printed Date: 1/9/2019
Map ID: 6092
0 ¼½¾1
Mi
The information shown and/or distributed
is for general reference purposes only
and does not necessarily represent exact
geographic or cartographic data.
The City of Auburn makes no warranties as to its accuracy.
Map is Current through Ordinance No. 6584 & 6698,
December 17, 2018
Lake TappsWhite RiverW
hite River
Green River
Green River
City LimitsCity Limits
Gateways
(Map 1.6)
Special Planning Areas
City Limits
KENT
Gateways
Page 939 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
ATTACHMENT 1D FLOW FACTORS
Page 940 of 1163
Table 1 - Existing Acreage by Land Use ClassificationLand Use ClassificationTotal A1 A1c A1d A3 A4 A6 A7 A9 A10 A11 A12 A13 A14 A15 A16 AUB Y-1 AUB Y-2 AUB Y-3 AUB Y-4 WINT003MSTTR02AAUBURN53SINGLE FAMILY2,778 0.040.222.631.40.072.49.917.023.27.720.440.155.846.493.590.8603.1355.4144.1624.1306.5173.7MODERATE DENSITY 147 0.0 0.0 0.0 5.0 0.0 2.0 0.0 4.6 2.8 2.6 0.0 17.2 1.7 14.9 27.5 0.0 0.0 20.9 8.5 3.2 35.9 0.0RESIDENTIAL 11 0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.010.70.00.00.00.0OPEN SPACE1 0.00.00.00.00.00.00.00.00.00.00.00.20.00.00.00.00.00.40.00.40.00.1NEIGHBORHOOD 64 0.00.00.00.00.98.26.19.80.01.70.01.52.30.00.00.00.00.00.00.033.70.0NEIGHBORHOOD COMMERCIAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0MULTI-FAMILY335 0.052.30.20.00.00.00.00.00.00.00.00.00.00.07.50.026.857.435.8104.850.00.0LIGHT INDUSTRIAL721 103.21.00.00.06.70.036.38.61.90.00.00.02.20.00.00.00.00.00.070.70.0490.6LIGHT 165 0.00.00.00.043.112.40.04.94.10.60.00.01.24.710.20.025.211.60.031.613.71.7INSTITUTIONAL953 0.07.90.023.40.00.04.815.936.64.10.04.40.024.428.3115.3191.275.1103.9169.952.195.9HEAVY 861 0.280.433.328.066.03.01.07.412.60.00.00.00.01.833.50.00.05.00.0266.656.7265.6HEAVY 414 61.30.01.58.80.00.023.90.00.00.00.00.00.00.031.50.00.00.00.0238.910.837.6DOWNTOWN 58 0.00.00.00.00.00.027.40.030.60.00.00.00.00.00.00.00.00.00.00.00.00.0Table 2 - Planning Flow Factors Land Use ClassificationTotal A1 A1c A1d A3 A4 A6 A7 A9 A10 A11 A12 A13 A14 A15 A16 AUB Y-1 AUB Y-2 AUB Y-3 AUB Y-4 WINT003MSTTR02AAUBURN53SINGLE FAMILY920850 600 950 2,100 900 800 600 250 400 900 650 1,900 600 850 1,500 1,100 1,050 400 750 800 900 MODERATE DENSITY 950 2,100 1,000 900 600 600 750 2,400 800 1,000 1,000 600 800 1,000 RESIDENTIAL 800800 OPEN SPACE0NEIGHBORHOOD 10201,000 1,000 1,000 1,000 800 1,000 1,800 1,000 MULTI-FAMILY24401,400 2,500 1,700 2,600 2,500 1,500 3,000 3,000 LIGHT INDUSTRIAL530500 250 700 800 600 500 200 500 800 500 LIGHT 640800 800 500 300 300 1,200 500 500 600 800 600 500 INSTITUTIONAL1230400 2,500 1,500 1,000 1,000 200 500 900 1,800 550 800 2,300 1,400 1,000 300 1,500 1,000 1,000 HEAVY 1920800 600 1,800 3,800 3,200 3,000 1,600 1,500 450 800 1,500 1,500 2,500 1,400 1,500 HEAVY 1890750 1,700 3,600 1,600 1,500 2,200 1,700 2,000 DOWNTOWN 15002,300 800 Page 941 of 1163
Table 3 - ADWF by Land Use Land Use ClassificationTotal A1 A1c A1d A3 A4 A6 A7 A9 A10 A11 A12 A13 A14 A15 A16 AUB Y-1 AUB Y-2 AUB Y-3 AUB Y-4 WINT003MSTTR02AAUBURN53SINGLE FAMILY2,405,279 3 24,102 21,502 66,001 - 65,130 7,946 10,208 5,799 3,063 18,320 26,060 ######27,822 79,452 136,247 663,409 373,206 57,653 468,051 245,191 156,360 MODERATE DENSITY 140,545 - - - 10,405 - 2,009 - 4,156 1,669 1,552 - 12,922 4,012 11,881 27,509 - - 20,866 5,126 2,569 35,871 - RESIDENTIAL 8,540 - - - - - - - - - - - - - - - - - 8,540 - - - - OPEN SPACE- - - - - - - - - - - - - - - - - - - - - - - NEIGHBORHOOD 65,725 - - - - 910 8,233 6,144 9,765 - 1,400 - 1,474 4,073 - - - - - - - 33,726 - MULTI-FAMILY817,559 - 73,176 505 - - - - - - - - - - - 12,780 - 69,623 143,472 53,659 314,256 150,088 - LIGHT INDUSTRIAL140,237 51,614 241 - - 5,378 - 21,783 4,301 374 - - - - - 0 - - - - 56,544 - 245,314 LIGHT 105,240 - - - - 34,478 9,957 - 2,458 1,224 193 - - 1,471 2,366 - - 12,596 6,955 - 25,301 8,241 835 INSTITUTIONAL1,078,078 - 3,169 - 58,607 - 16 4,809 15,869 7,315 2,026 - 3,988 21 13,437 22,668 265,188 267,688 75,122 31,157 254,895 52,102 95,935 HEAVY 1,258,311 127 48,229 59,970 106,241 211,291 8,956 1,571 11,109 5,682 - - - - 1,464 50,259 - - 7,425 - 666,624 79,364 398,378 HEAVY 709,541 45,965 - 2,487 31,630 - - 38,245 - - - - - - - 47,211 - - - - 525,561 18,441 75,148 DOWNTOWN 87,521 - - - - - - 63,013 - 24,509 - - - - - - - - - - - - - Measured ADWF7.81 0.0990.1460.0850.281 0.255 0.092 0.145 0.057 0.046 0.008 0.018 0.044 0.122 0.057 0.240 0.401 1.033 0.657 0.143 2.321 0.611 0.949 Estimated ADWF7.790.0980.1490.0840.2730.2520.0940.1440.0580.0470.0080.0180.0440.1160.0570.2400.4011.0130.6360.1482.3140.6230.972% Difference1%-2%1%3%1%-3%1%-1%-1%0%0%-1%5%-1%0%0%2%3%-3%0%-2%-2%Page 942 of 1163
FM_Basin_1st_SeasonFM_Basin_1st_SeasonA1UnmeteredAUBWV016SRT11WINT035UnmeteredA10A10.00.00.018.1A11AUB Y-20.0 0.0 0.0 0.0A12AUBURN530.00.00.00.0A13MSTTR02A0.00.00.00.0A14A160.00.00.00.0A15A30.0 0.0 0.0 0.0A16WINT0350.00.00.00.0A1cA1c0.00.00.0106.7A1dAUBY-10.00.00.00.0A2AUB Y-30.00.00.04.1A3A130.00.00.037.8A4A120.00.00.00.0A6WINT0030.00.00.00.0A7SRT11A9A1dAUB Y-2A10AUB Y-3A14AUB Y-4A7AUBWV016A15AUBY-1A6MSTTR02AAUB Y-4SRT11AUBWV016UnmeteredA9WINT035A2A11Page 943 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
ATTACHMENT 1E DRY WEATHER CALIBRATION SUMMARY
SHEETS
Page 944 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.28 3.59 1.55 0.28 2.33 1.51 1.26 0.76 0.76 0.76
1 0.25 3.44 1.48 0.24 2.17 1.44 1.27 0.70 0.70 0.70
2 0.23 3.32 1.44 0.20 2.02 1.37 1.30 0.66 0.66 0.66
3 0.22 3.25 1.41 0.18 1.90 1.31 1.34 0.66 0.66 0.66
4 0.22 3.23 1.41 0.16 1.83 1.27 1.40 0.68 0.68 0.68
5 0.22 3.26 1.43 0.16 1.81 1.27 1.45 0.73 0.73 0.73
6 0.24 3.36 1.47 0.17 1.88 1.31 1.49 0.84 0.84 0.84
7 0.28 3.58 1.56 0.20 2.01 1.38 1.56 0.96 0.96 0.96
8 0.32 3.79 1.65 0.24 2.17 1.45 1.62 1.10 1.10 1.10
9 0.36 4.02 1.73 0.28 2.34 1.53 1.68 1.20 1.20 1.20
10 0.40 4.20 1.79 0.33 2.49 1.59 1.71 1.26 1.26 1.26
11 0.42 4.29 1.82 0.36 2.60 1.63 1.69 1.27 1.27 1.27
12 0.42 4.30 1.83 0.37 2.65 1.66 1.65 1.27 1.27 1.27
13 0.42 4.30 1.83 0.38 2.67 1.67 1.63 1.28 1.28 1.28
14 0.42 4.31 1.83 0.38 2.68 1.67 1.63 1.27 1.27 1.27
15 0.42 4.28 1.83 0.38 2.66 1.66 1.62 1.29 1.29 1.29
16 0.43 4.31 1.84 0.37 2.64 1.65 1.66 1.22 1.22 1.22
17 0.40 4.21 1.81 0.37 2.64 1.66 1.57 1.17 1.17 1.17
18 0.38 4.13 1.77 0.38 2.65 1.66 1.49 1.14 1.14 1.14
19 0.38 4.09 1.76 0.37 2.64 1.66 1.45 1.12 1.12 1.12
20 0.37 4.05 1.75 0.37 2.62 1.65 1.43 1.08 1.08 1.08
21 0.36 4.00 1.72 0.36 2.60 1.63 1.40 1.01 1.01 1.01
22 0.33 3.89 1.68 0.34 2.55 1.61 1.34 0.93 0.93 0.93
23 0.31 3.76 1.62 0.31 2.46 1.57 1.31 0.83 0.83 0.83
24 0.28 3.62 1.57 0.28 2.34 1.51 1.28 0.79 0.79 0.79
25 0.26 3.49 1.52 0.25 2.23 1.46 1.26 0.72 0.72 0.72
26 0.24 3.37 1.47 0.22 2.11 1.41 1.25 0.67 0.67 0.67
27 0.22 3.26 1.43 0.19 1.99 1.35 1.27 0.65 0.65 0.65
28 0.22 3.21 1.41 0.17 1.89 1.30 1.33 0.64 0.64 0.64
29 0.21 3.18 1.40 0.16 1.84 1.28 1.34 0.65 0.65 0.65
30 0.21 3.20 1.41 0.16 1.83 1.28 1.37 0.68 0.68 0.68
31 0.22 3.26 1.44 0.17 1.86 1.29 1.41 0.75 0.75 0.75
32 0.25 3.39 1.50 0.19 1.94 1.34 1.45 0.91 0.91 0.91
33 0.30 3.69 1.62 0.23 2.12 1.43 1.57 1.10 1.10 1.10
34 0.36 4.01 1.74 0.30 2.38 1.55 1.62 1.21 1.21 1.21
35 0.40 4.19 1.80 0.36 2.61 1.65 1.58 1.24 1.24 1.24
36 0.41 4.23 1.82 0.40 2.74 1.70 1.49 1.24 1.24 1.24
37 0.41 4.23 1.82 0.42 2.78 1.71 1.44 1.20 1.20 1.20
38 0.39 4.17 1.79 0.41 2.78 1.71 1.39 1.15 1.15 1.15
39 0.38 4.09 1.77 0.40 2.74 1.69 1.35 1.13 1.13 1.13
40 0.37 4.06 1.76 0.39 2.69 1.67 1.37 1.09 1.09 1.09
41 0.36 4.00 1.74 0.37 2.64 1.65 1.35 1.09 1.09 1.09
42 0.36 3.99 1.75 0.36 2.61 1.64 1.38 1.09 1.09 1.09
43 0.36 3.99 1.74 0.36 2.60 1.64 1.39 1.09 1.09 1.09
44 0.36 3.98 1.74 0.36 2.60 1.64 1.38 1.05 1.05 1.05
45 0.35 3.92 1.71 0.35 2.58 1.63 1.34 1.01 1.01 1.01
46 0.33 3.86 1.69 0.34 2.54 1.61 1.32 0.93 0.93 0.93
47 0.31 3.74 1.62 0.32 2.47 1.57 1.27 0.86 0.86 0.86
Weekday 0.34 3.87 1.67 0.30 2.38 1.53 1.02 1.02 1.02
Weekend 0.32 3.75 1.64 0.30 2.37 1.53 0.96 0.96 0.96
ADWF(1)0.33 3.84 1.66 0.30 2.37 1.53 1.00 1.00 1.00
Weekday -11.0%1.71
Weekend -5.3% 1.62
Note:WeekdayWeekendAverage
% Error
City of Auburn
Collection System Planning Project
Measured Data Modeled Data Diurnal
FLOW MONITORING SITE A1 DRY WEATHER FLOW CALIBRATION
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Dirunal Pattern
0.0
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0.4
0.6
0.8
1.0
1.2
1.4
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 945 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.17 6.70 0.58 0.18 4.35 1.26 2.35 0.62 0.62 0.62
1 0.14 6.40 0.52 0.14 3.93 1.19 2.47 0.53 0.53 0.53
2 0.12 6.17 0.48 0.12 3.57 1.13 2.60 0.49 0.49 0.49
3 0.11 6.05 0.46 0.11 3.33 1.09 2.72 0.51 0.51 0.51
4 0.12 6.11 0.48 0.10 3.25 1.08 2.86 0.58 0.58 0.58
5 0.13 6.28 0.51 0.11 3.37 1.11 2.91 0.67 0.67 0.67
6 0.15 6.54 0.55 0.13 3.69 1.17 2.85 0.79 0.79 0.79
7 0.18 6.83 0.60 0.16 4.08 1.23 2.76 0.93 0.93 0.93
8 0.22 7.15 0.65 0.19 4.47 1.30 2.68 1.11 1.11 1.11
9 0.26 7.51 0.72 0.22 4.87 1.36 2.65 1.20 1.20 1.20
10 0.28 7.69 0.75 0.25 5.18 1.40 2.50 1.24 1.24 1.24
11 0.29 7.77 0.76 0.26 5.36 1.42 2.41 1.27 1.27 1.27
12 0.29 7.82 0.77 0.27 5.45 1.43 2.37 1.26 1.26 1.26
13 0.29 7.81 0.76 0.27 5.49 1.44 2.32 1.22 1.22 1.22
14 0.28 7.73 0.75 0.27 5.47 1.43 2.26 1.20 1.20 1.20
15 0.28 7.70 0.74 0.27 5.40 1.42 2.30 1.24 1.24 1.24
16 0.29 7.76 0.76 0.26 5.38 1.42 2.39 1.27 1.27 1.27
17 0.29 7.82 0.77 0.27 5.43 1.43 2.39 1.29 1.29 1.29
18 0.30 7.86 0.77 0.27 5.48 1.44 2.38 1.27 1.27 1.27
19 0.29 7.83 0.77 0.27 5.47 1.43 2.37 1.25 1.25 1.25
20 0.29 7.78 0.76 0.27 5.41 1.43 2.37 1.17 1.17 1.17
21 0.27 7.64 0.74 0.26 5.31 1.41 2.33 1.05 1.05 1.05
22 0.24 7.39 0.70 0.24 5.08 1.38 2.31 0.91 0.91 0.91
23 0.21 7.10 0.65 0.21 4.76 1.33 2.34 0.74 0.74 0.74
24 0.19 6.86 0.61 0.18 4.42 1.28 2.44 0.69 0.69 0.69
25 0.16 6.57 0.56 0.16 4.11 1.22 2.47 0.58 0.58 0.58
26 0.13 6.30 0.51 0.13 3.75 1.16 2.54 0.53 0.53 0.53
27 0.12 6.13 0.49 0.11 3.46 1.11 2.67 0.51 0.51 0.51
28 0.12 6.04 0.48 0.10 3.30 1.08 2.74 0.50 0.50 0.50
29 0.12 6.05 0.48 0.10 3.27 1.08 2.78 0.53 0.53 0.53
30 0.12 6.15 0.49 0.11 3.32 1.09 2.82 0.61 0.61 0.61
31 0.14 6.35 0.52 0.12 3.48 1.13 2.86 0.81 0.81 0.81
32 0.19 6.83 0.61 0.15 3.86 1.20 2.97 1.11 1.11 1.11
33 0.26 7.48 0.72 0.20 4.49 1.31 2.99 1.36 1.36 1.36
34 0.31 7.97 0.80 0.25 5.17 1.40 2.80 1.45 1.45 1.45
35 0.33 8.15 0.82 0.29 5.62 1.46 2.53 1.47 1.47 1.47
36 0.34 8.19 0.83 0.30 5.81 1.48 2.38 1.44 1.44 1.44
37 0.33 8.15 0.82 0.31 5.83 1.48 2.32 1.37 1.37 1.37
38 0.32 8.01 0.80 0.30 5.75 1.47 2.26 1.32 1.32 1.32
39 0.31 7.92 0.78 0.29 5.63 1.45 2.29 1.27 1.27 1.27
40 0.29 7.83 0.77 0.28 5.51 1.44 2.32 1.24 1.24 1.24
41 0.29 7.77 0.76 0.27 5.40 1.42 2.37 1.25 1.25 1.25
42 0.29 7.77 0.77 0.26 5.34 1.42 2.43 1.25 1.25 1.25
43 0.29 7.77 0.77 0.26 5.33 1.42 2.44 1.22 1.22 1.22
44 0.28 7.72 0.75 0.26 5.31 1.41 2.41 1.16 1.16 1.16
45 0.27 7.59 0.74 0.25 5.22 1.40 2.37 1.08 1.08 1.08
46 0.25 7.44 0.71 0.24 5.06 1.38 2.38 0.92 0.92 0.92
47 0.21 7.13 0.65 0.21 4.80 1.33 2.33 0.81 0.81 0.81
Weekday 0.23 7.23 0.67 0.21 4.73 1.32 0.99 0.99 0.99
Weekend 0.24 7.26 0.68 0.21 4.72 1.32 1.02 1.02 1.02
ADWF(1)0.23 7.24 0.67 0.21 4.73 1.32 1.00 1.00 1.00
Weekday -6.9% 2.91
Weekend -9.5% 2.99
Note:
City of Auburn
Collection System Planning Project
FLOW MONITORING SITE A1c DRY WEATHER FLOW CALIBRATION
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.10
0.20
0.30
0.40
0.50
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
-2.0
3.0
8.0
13.0
18.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
-0.4
0.1
0.6
1.1
1.6
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 946 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.05 1.39 1.31 0.06 2.28 0.81 -0.89 0.52 0.52 0.52
1 0.04 1.22 1.27 0.05 2.06 0.76 -0.83 0.44 0.44 0.44
2 0.04 1.12 1.24 0.04 1.88 0.72 -0.76 0.42 0.42 0.42
3 0.04 1.08 1.26 0.04 1.77 0.69 -0.69 0.47 0.47 0.47
4 0.04 1.15 1.30 0.04 1.77 0.69 -0.63 0.61 0.61 0.61
5 0.05 1.34 1.34 0.04 1.91 0.72 -0.57 0.80 0.80 0.80
6 0.07 1.57 1.39 0.05 2.16 0.77 -0.59 0.93 0.93 0.93
7 0.08 1.72 1.42 0.07 2.39 0.82 -0.67 1.10 1.10 1.10
8 0.09 1.91 1.44 0.08 2.60 0.86 -0.69 1.23 1.23 1.23
9 0.10 2.07 1.44 0.09 2.78 0.90 -0.71 1.26 1.26 1.26
10 0.11 2.10 1.45 0.10 2.89 0.92 -0.79 1.29 1.29 1.29
11 0.11 2.12 1.45 0.10 2.94 0.93 -0.82 1.31 1.31 1.31
12 0.11 2.14 1.46 0.10 2.97 0.94 -0.83 1.31 1.31 1.31
13 0.11 2.13 1.47 0.10 2.98 0.94 -0.85 1.28 1.28 1.28
14 0.11 2.09 1.47 0.10 2.97 0.94 -0.88 1.24 1.24 1.24
15 0.11 2.04 1.48 0.10 2.93 0.93 -0.89 1.28 1.28 1.28
16 0.11 2.09 1.48 0.10 2.93 0.93 -0.84 1.31 1.31 1.31
17 0.11 2.11 1.49 0.10 2.96 0.94 -0.85 1.26 1.26 1.26
18 0.11 2.04 1.50 0.10 2.96 0.94 -0.91 1.25 1.25 1.25
19 0.11 2.01 1.51 0.10 2.93 0.93 -0.91 1.21 1.21 1.21
20 0.10 1.98 1.49 0.10 2.89 0.92 -0.91 1.12 1.12 1.12
21 0.09 1.91 1.46 0.09 2.82 0.91 -0.92 0.96 0.96 0.96
22 0.08 1.76 1.41 0.09 2.69 0.89 -0.93 0.80 0.80 0.80
23 0.07 1.59 1.35 0.07 2.50 0.85 -0.91 0.63 0.63 0.63
24 0.06 1.52 1.32 0.07 2.37 0.82 -0.85 0.59 0.59 0.59
25 0.05 1.34 1.27 0.06 2.19 0.79 -0.85 0.48 0.48 0.48
26 0.04 1.20 1.22 0.05 1.99 0.75 -0.79 0.45 0.45 0.45
27 0.04 1.14 1.23 0.04 1.85 0.71 -0.71 0.46 0.46 0.46
28 0.04 1.15 1.26 0.04 1.80 0.70 -0.65 0.48 0.48 0.48
29 0.04 1.19 1.24 0.04 1.82 0.70 -0.63 0.55 0.55 0.55
30 0.05 1.29 1.29 0.04 1.89 0.71 -0.60 0.64 0.64 0.64
31 0.05 1.40 1.33 0.05 2.01 0.74 -0.62 0.91 0.91 0.91
32 0.08 1.69 1.40 0.06 2.26 0.79 -0.57 1.19 1.19 1.19
33 0.10 2.00 1.46 0.08 2.62 0.86 -0.62 1.39 1.39 1.39
34 0.12 2.20 1.48 0.10 2.92 0.92 -0.73 1.44 1.44 1.44
35 0.12 2.24 1.50 0.11 3.08 0.96 -0.84 1.44 1.44 1.44
36 0.12 2.23 1.50 0.12 3.13 0.97 -0.90 1.41 1.41 1.41
37 0.12 2.21 1.50 0.12 3.12 0.97 -0.92 1.36 1.36 1.36
38 0.12 2.15 1.50 0.11 3.08 0.96 -0.93 1.30 1.30 1.30
39 0.11 2.10 1.49 0.11 3.03 0.95 -0.93 1.25 1.25 1.25
40 0.11 2.04 1.48 0.10 2.97 0.94 -0.93 1.22 1.22 1.22
41 0.10 2.00 1.49 0.10 2.91 0.93 -0.91 1.21 1.21 1.21
42 0.10 1.99 1.49 0.10 2.89 0.92 -0.90 1.23 1.23 1.23
43 0.10 2.00 1.50 0.10 2.88 0.92 -0.88 1.17 1.17 1.17
44 0.10 1.95 1.48 0.10 2.87 0.92 -0.92 1.12 1.12 1.12
45 0.09 1.91 1.47 0.09 2.81 0.91 -0.90 1.01 1.01 1.01
46 0.09 1.80 1.43 0.09 2.72 0.89 -0.92 0.85 0.85 0.85
47 0.07 1.64 1.38 0.08 2.57 0.86 -0.92 0.73 0.73 0.73
Weekday 0.08 1.78 1.41 0.08 2.58 0.86 1.00 1.00 1.00
Weekend 0.08 1.77 1.41 0.08 2.57 0.86 0.99 0.99 0.99
ADWF(1)0.08 1.77 1.41 0.08 2.58 0.86 1.00 1.00 1.00
Weekday -5.4% 0.93
Weekend -4.7% 0.93
Note:
City of Auburn
Collection System Planning Project
FLOW MONITORING SITE A1d DRY WEATHER FLOW CALIBRATION
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
5.0
10.0
15.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Dirunal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 947 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.13 2.85 1.04 0.13 1.58 2.29 1.27 0.83 0.86 0.86
1 0.12 2.80 1.02 0.12 1.55 2.26 1.25 0.77 0.83 0.83
2 0.11 2.73 0.99 0.11 1.52 2.23 1.21 0.78 0.77 0.77
3 0.11 2.72 0.99 0.11 1.51 2.23 1.22 0.83 0.78 0.78
4 0.12 2.79 1.02 0.12 1.53 2.26 1.25 0.93 0.83 0.83
5 0.13 2.91 1.07 0.13 1.58 2.30 1.33 0.98 0.93 0.93
6 0.14 2.97 1.10 0.14 1.64 2.36 1.33 1.12 0.98 0.98
7 0.16 3.13 1.17 0.15 1.71 2.42 1.42 1.20 1.12 1.12
8 0.17 3.24 1.21 0.16 1.79 2.49 1.46 1.33 1.20 1.20
9 0.19 3.38 1.27 0.18 1.85 2.54 1.53 1.34 1.33 1.33
10 0.19 3.40 1.27 0.18 1.89 2.57 1.51 1.40 1.34 1.34
11 0.20 3.46 1.30 0.19 1.90 2.59 1.55 1.37 1.40 1.40
12 0.20 3.43 1.29 0.19 1.91 2.59 1.53 1.39 1.37 1.37
13 0.20 3.46 1.29 0.19 1.89 2.58 1.56 1.33 1.39 1.39
14 0.19 3.40 1.27 0.18 1.87 2.55 1.53 1.26 1.33 1.33
15 0.18 3.33 1.23 0.17 1.83 2.52 1.50 1.23 1.26 1.26
16 0.18 3.30 1.22 0.16 1.79 2.49 1.51 1.15 1.23 1.23
17 0.17 3.21 1.19 0.16 1.75 2.45 1.46 1.10 1.15 1.15
18 0.16 3.16 1.17 0.15 1.72 2.42 1.44 1.08 1.10 1.10
19 0.16 3.13 1.16 0.15 1.70 2.40 1.43 1.04 1.08 1.08
20 0.15 3.08 1.14 0.14 1.68 2.39 1.39 1.00 1.04 1.04
21 0.15 3.03 1.12 0.14 1.66 2.37 1.37 0.96 1.00 1.00
22 0.14 2.98 1.10 0.14 1.64 2.35 1.33 0.91 0.96 0.96
23 0.13 2.91 1.07 0.13 1.61 2.32 1.29 0.86 0.91 0.91
24 0.10 2.65 0.92 0.13 1.60 2.31 1.05 0.61 0.68 0.68
25 0.09 2.54 0.88 0.13 1.59 2.31 0.94 0.59 0.61 0.61
26 0.09 2.51 0.87 0.12 1.56 2.28 0.94 0.58 0.59 0.59
27 0.08 2.48 0.85 0.12 1.54 2.25 0.94 0.54 0.58 0.58
28 0.08 2.43 0.83 0.11 1.51 2.22 0.92 0.53 0.54 0.54
29 0.08 2.42 0.82 0.11 1.49 2.21 0.93 0.56 0.53 0.53
30 0.08 2.46 0.85 0.11 1.50 2.22 0.96 0.59 0.56 0.56
31 0.09 2.51 0.88 0.12 1.53 2.26 0.98 0.66 0.59 0.59
32 0.10 2.62 0.93 0.13 1.61 2.33 1.01 0.80 0.66 0.66
33 0.12 2.83 1.00 0.15 1.71 2.43 1.11 0.91 0.80 0.80
34 0.13 2.99 1.06 0.17 1.83 2.52 1.16 1.01 0.91 0.91
35 0.15 3.12 1.10 0.19 1.90 2.59 1.22 1.01 1.01 1.01
36 0.15 3.10 1.10 0.19 1.92 2.61 1.18 0.99 1.01 1.01
37 0.14 3.08 1.10 0.19 1.91 2.59 1.17 0.96 0.99 0.99
38 0.14 3.04 1.08 0.18 1.88 2.56 1.16 0.88 0.96 0.96
39 0.13 2.96 1.04 0.17 1.83 2.52 1.12 0.87 0.88 0.88
40 0.13 2.96 1.03 0.17 1.81 2.50 1.15 0.89 0.87 0.87
41 0.13 2.98 1.04 0.17 1.80 2.50 1.18 0.86 0.89 0.89
42 0.12 2.94 1.02 0.17 1.80 2.49 1.14 0.88 0.86 0.86
43 0.13 2.96 1.04 0.16 1.79 2.49 1.17 0.86 0.88 0.88
44 0.12 2.93 1.03 0.16 1.78 2.48 1.16 0.78 0.86 0.86
45 0.11 2.83 0.99 0.15 1.74 2.44 1.09 0.76 0.78 0.78
46 0.11 2.78 0.98 0.15 1.71 2.41 1.07 0.71 0.76 0.76
47 0.10 2.72 0.94 0.14 1.68 2.38 1.04 0.68 0.71 0.71
Weekday 0.16 3.12 1.15 0.15 1.71 2.42 1.09 1.09 1.09
Weekend 0.11 2.78 0.97 0.15 1.71 2.41 0.77 0.77 0.77
ADWF(1)0.14 3.02 1.10 0.15 1.71 2.41 1.00 1.00 1.00
Weekday -4.9% 1.56
Weekend 34.3%1.22
Note:
City of Auburn
Collection System Planning Project
FLOW MONITORING SITE A3 DRY WEATHER FLOW CALIBRATION
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
3.0
6.0
9.0
12.0
15.0
18.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 948 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.21 3.26 1.92 0.22 3.40 1.79 -0.13 0.74 0.74 0.74
1 0.19 3.12 1.85 0.20 3.21 1.74 -0.09 0.70 0.70 0.70
2 0.18 3.03 1.81 0.18 3.06 1.69 -0.03 0.66 0.66 0.66
3 0.17 2.97 1.77 0.17 2.96 1.66 0.01 0.67 0.67 0.67
4 0.17 2.96 1.79 0.16 2.90 1.64 0.07 0.73 0.73 0.73
5 0.18 3.06 1.86 0.16 2.92 1.65 0.15 0.79 0.79 0.79
6 0.20 3.18 1.91 0.18 3.01 1.69 0.17 0.88 0.88 0.88
7 0.22 3.35 1.98 0.19 3.15 1.74 0.20 0.99 0.99 0.99
8 0.25 3.57 2.04 0.22 3.33 1.79 0.24 1.11 1.11 1.11
9 0.28 3.80 2.09 0.24 3.54 1.85 0.26 1.18 1.18 1.18
10 0.30 3.96 2.11 0.27 3.72 1.90 0.24 1.22 1.22 1.22
11 0.31 4.03 2.12 0.28 3.84 1.93 0.19 1.22 1.22 1.22
12 0.31 4.04 2.12 0.29 3.90 1.95 0.14 1.21 1.21 1.21
13 0.31 4.02 2.12 0.29 3.91 1.95 0.11 1.20 1.20 1.20
14 0.31 4.00 2.12 0.29 3.90 1.95 0.10 1.18 1.18 1.18
15 0.30 3.96 2.11 0.29 3.88 1.94 0.08 1.15 1.15 1.15
16 0.29 3.90 2.10 0.28 3.84 1.93 0.05 1.13 1.13 1.13
17 0.29 3.85 2.11 0.28 3.80 1.92 0.05 1.15 1.15 1.15
18 0.29 3.87 2.12 0.27 3.79 1.91 0.08 1.15 1.15 1.15
19 0.29 3.87 2.12 0.28 3.79 1.92 0.08 1.13 1.13 1.13
20 0.29 3.84 2.12 0.28 3.79 1.91 0.05 1.10 1.10 1.10
21 0.28 3.77 2.11 0.27 3.76 1.91 0.01 1.02 1.02 1.02
22 0.26 3.64 2.06 0.26 3.69 1.88 -0.05 0.93 0.93 0.93
23 0.24 3.47 2.00 0.24 3.57 1.85 -0.10 0.82 0.82 0.82
24 0.22 3.37 1.94 0.23 3.44 1.81 -0.07 0.80 0.80 0.80
25 0.20 3.23 1.89 0.21 3.31 1.77 -0.08 0.74 0.74 0.74
26 0.19 3.11 1.85 0.19 3.18 1.73 -0.07 0.71 0.71 0.71
27 0.18 3.05 1.81 0.18 3.06 1.69 -0.02 0.68 0.68 0.68
28 0.17 2.99 1.79 0.17 2.98 1.67 0.01 0.69 0.69 0.69
29 0.17 3.00 1.80 0.17 2.94 1.66 0.06 0.74 0.74 0.74
30 0.19 3.11 1.85 0.17 2.97 1.67 0.14 0.82 0.82 0.82
31 0.21 3.25 1.92 0.18 3.07 1.71 0.18 0.93 0.93 0.93
32 0.24 3.45 2.00 0.20 3.23 1.76 0.22 1.07 1.07 1.07
33 0.27 3.74 2.07 0.23 3.45 1.83 0.29 1.17 1.17 1.17
34 0.30 3.93 2.11 0.26 3.68 1.89 0.25 1.22 1.22 1.22
35 0.31 4.02 2.13 0.28 3.84 1.94 0.18 1.22 1.22 1.22
36 0.31 4.03 2.12 0.29 3.92 1.95 0.11 1.21 1.21 1.21
37 0.31 4.03 2.11 0.30 3.93 1.95 0.09 1.19 1.19 1.19
38 0.30 4.01 2.10 0.29 3.92 1.95 0.09 1.16 1.16 1.16
39 0.30 3.95 2.09 0.29 3.89 1.94 0.06 1.13 1.13 1.13
40 0.29 3.86 2.09 0.28 3.84 1.93 0.02 1.10 1.10 1.10
41 0.28 3.81 2.08 0.27 3.79 1.91 0.02 1.10 1.10 1.10
42 0.28 3.79 2.08 0.27 3.75 1.90 0.05 1.10 1.10 1.10
43 0.28 3.81 2.07 0.27 3.73 1.90 0.07 1.09 1.09 1.09
44 0.28 3.80 2.07 0.27 3.73 1.90 0.07 1.09 1.09 1.09
45 0.28 3.75 2.09 0.27 3.72 1.90 0.03 1.03 1.03 1.03
46 0.26 3.65 2.06 0.26 3.69 1.88 -0.04 0.95 0.95 0.95
47 0.24 3.49 2.01 0.25 3.59 1.85 -0.10 0.87 0.87 0.87
Weekday 0.255 3.6 2.02 0.241 3.5 1.84 1.00 1.00 1.00
Weekend 0.252 3.6 2.00 0.241 3.5 1.84 0.99 0.99 0.99
ADWF(1)0.254 3.6 2.01 0.241 3.5 1.84 1.00 1.00 1.00
Weekday -5.4% 0.26
Weekend -4.3% 0.29
Note:
City of Auburn
Collection System Planning Project
FLOW MONITORING SITE A4 DRY WEATHER FLOW CALIBRATION
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 949 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.07 4.31 0.42 0.07 10.80 2.58 -6.49 0.61 0.61 0.61
1 0.06 4.07 0.36 0.07 10.07 2.62 -6.00 0.54 0.54 0.54
2 0.05 3.94 0.33 0.05 9.30 2.34 -5.36 0.50 0.50 0.50
3 0.05 3.85 0.31 0.04 8.73 2.23 -4.87 0.53 0.53 0.53
4 0.05 3.90 0.33 0.04 8.48 2.20 -4.58 0.60 0.60 0.60
5 0.05 4.01 0.36 0.04 8.25 2.24 -4.23 0.72 0.72 0.72
6 0.07 4.20 0.41 0.05 8.39 2.33 -4.19 0.84 0.84 0.84
7 0.08 4.37 0.46 0.08 8.80 2.71 -4.43 0.97 0.97 0.97
8 0.09 4.55 0.50 0.07 9.33 2.63 -4.78 1.06 1.06 1.06
9 0.10 4.73 0.52 0.09 10.08 2.84 -5.35 1.14 1.14 1.14
10 0.10 4.88 0.53 0.11 10.63 2.94 -5.75 1.18 1.18 1.18
11 0.11 5.00 0.54 0.11 11.03 2.97 -6.03 1.20 1.20 1.20
12 0.11 5.10 0.53 0.12 11.29 2.99 -6.19 1.23 1.23 1.23
13 0.11 5.11 0.54 0.12 11.39 2.98 -6.28 1.20 1.20 1.20
14 0.11 5.06 0.54 0.11 11.45 2.92 -6.39 1.16 1.16 1.16
15 0.11 4.99 0.53 0.10 11.42 2.86 -6.43 1.21 1.21 1.21
16 0.11 5.02 0.55 0.10 11.33 2.82 -6.31 1.25 1.25 1.25
17 0.11 5.10 0.55 0.10 11.38 2.84 -6.27 1.28 1.28 1.28
18 0.12 5.26 0.54 0.11 11.55 2.95 -6.30 1.29 1.29 1.29
19 0.12 5.41 0.53 0.12 11.70 3.03 -6.29 1.28 1.28 1.28
20 0.12 5.42 0.52 0.12 11.78 2.96 -6.36 1.21 1.21 1.21
21 0.11 5.28 0.51 0.10 11.75 2.86 -6.47 1.07 1.07 1.07
22 0.10 4.98 0.49 0.10 11.63 2.84 -6.64 0.95 0.95 0.95
23 0.09 4.65 0.47 0.09 11.25 2.73 -6.59 0.76 0.76 0.76
24 0.08 4.37 0.45 0.08 10.71 2.63 -6.34 0.68 0.68 0.68
25 0.06 4.14 0.39 0.08 10.14 2.71 -6.00 0.59 0.59 0.59
26 0.05 4.00 0.36 0.05 9.54 2.40 -5.55 0.53 0.53 0.53
27 0.05 3.89 0.33 0.04 8.91 2.26 -5.02 0.51 0.51 0.51
28 0.05 3.84 0.32 0.04 8.49 2.20 -4.64 0.50 0.50 0.50
29 0.05 3.84 0.32 0.04 8.16 2.17 -4.33 0.56 0.56 0.56
30 0.05 3.97 0.34 0.04 7.92 2.20 -3.95 0.69 0.69 0.69
31 0.06 4.15 0.40 0.04 8.13 2.28 -3.98 0.86 0.86 0.86
32 0.08 4.38 0.46 0.05 8.38 2.43 -4.00 1.07 1.07 1.07
33 0.10 4.72 0.53 0.09 9.09 2.77 -4.37 1.25 1.25 1.25
34 0.11 5.16 0.55 0.11 10.11 2.95 -4.95 1.38 1.38 1.38
35 0.13 5.57 0.54 0.12 11.07 3.02 -5.49 1.40 1.40 1.40
36 0.13 5.76 0.53 0.12 11.74 3.01 -5.98 1.39 1.39 1.39
37 0.13 5.77 0.52 0.11 12.03 2.93 -6.26 1.39 1.39 1.39
38 0.13 5.69 0.53 0.13 12.12 3.06 -6.43 1.33 1.33 1.33
39 0.12 5.50 0.53 0.12 12.08 2.95 -6.58 1.28 1.28 1.28
40 0.12 5.35 0.53 0.11 11.87 2.90 -6.53 1.30 1.30 1.30
41 0.12 5.29 0.55 0.12 11.75 3.00 -6.46 1.29 1.29 1.29
42 0.12 5.29 0.54 0.12 11.72 3.00 -6.43 1.26 1.26 1.26
43 0.12 5.31 0.53 0.11 11.61 2.93 -6.31 1.24 1.24 1.24
44 0.11 5.27 0.53 0.10 11.59 2.85 -6.32 1.17 1.17 1.17
45 0.11 5.12 0.51 0.10 11.53 2.81 -6.41 1.09 1.09 1.09
46 0.10 4.92 0.50 0.09 11.36 2.77 -6.44 0.96 0.96 0.96
47 0.09 4.62 0.48 0.08 11.09 2.68 -6.47 0.84 0.84 0.84
Weekday 0.091 4.7 0.47 0.087 10.5 2.72 0.99 0.99 0.99
Weekend 0.094 4.8 0.47 0.087 10.5 2.70 1.02 1.02 1.02
ADWF(1)0.092 4.7 0.47 0.087 10.5 2.72 1.00 1.00 1.00
Weekday -3.8%6.64
Weekend -7.9%6.58
Note:
FLOW MONITORING SITE A6 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 950 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.13 2.85 1.04 0.12 14.23 3.16 -11.38 0.83 0.83 0.83
1 0.12 2.80 1.02 0.11 14.14 3.11 -11.34 0.77 0.77 0.77
2 0.11 2.73 0.99 0.11 13.96 3.07 -11.23 0.78 0.78 0.78
3 0.11 2.72 0.99 0.10 13.76 3.03 -11.04 0.83 0.83 0.83
4 0.12 2.79 1.02 0.10 13.62 3.04 -10.84 0.93 0.93 0.93
5 0.13 2.91 1.07 0.11 13.68 3.10 -10.77 0.98 0.98 0.98
6 0.14 2.97 1.10 0.12 13.86 3.18 -10.88 1.12 1.12 1.12
7 0.16 3.13 1.17 0.13 14.02 3.27 -10.89 1.20 1.20 1.20
8 0.17 3.24 1.21 0.15 14.13 3.37 -10.89 1.33 1.33 1.33
9 0.19 3.38 1.27 0.16 14.14 3.47 -10.76 1.34 1.34 1.34
10 0.19 3.40 1.27 0.17 14.00 3.54 -10.59 1.40 1.40 1.40
11 0.20 3.46 1.30 0.18 13.56 3.59 -10.11 1.37 1.37 1.37
12 0.20 3.43 1.29 0.18 13.00 3.63 -9.57 1.39 1.39 1.39
13 0.20 3.46 1.29 0.18 12.54 3.65 -9.08 1.33 1.33 1.33
14 0.19 3.40 1.27 0.18 12.22 3.64 -8.82 1.26 1.26 1.26
15 0.18 3.33 1.23 0.17 12.00 3.61 -8.68 1.23 1.23 1.23
16 0.18 3.30 1.22 0.17 11.95 3.56 -8.66 1.15 1.15 1.15
17 0.17 3.21 1.19 0.16 12.07 3.51 -8.86 1.10 1.10 1.10
18 0.16 3.16 1.17 0.15 12.40 3.45 -9.24 1.08 1.08 1.08
19 0.16 3.13 1.16 0.15 12.86 3.39 -9.74 1.04 1.04 1.04
20 0.15 3.08 1.14 0.14 13.38 3.35 -10.31 1.00 1.00 1.00
21 0.15 3.03 1.12 0.14 13.86 3.30 -10.83 0.96 0.96 0.96
22 0.14 2.98 1.10 0.13 14.11 3.25 -11.14 0.91 0.91 0.91
23 0.13 2.91 1.07 0.13 14.23 3.21 -11.32 0.86 0.86 0.86
24 0.10 2.65 0.92 0.13 14.31 3.21 -11.66 0.61 0.61 0.61
25 0.09 2.54 0.88 0.13 14.45 3.19 -11.91 0.59 0.59 0.59
26 0.09 2.51 0.87 0.12 14.30 3.12 -11.79 0.58 0.58 0.58
27 0.08 2.48 0.85 0.11 14.10 3.08 -11.62 0.54 0.54 0.54
28 0.08 2.43 0.83 0.11 13.95 3.05 -11.52 0.53 0.53 0.53
29 0.08 2.42 0.82 0.10 13.85 3.02 -11.43 0.56 0.56 0.56
30 0.08 2.46 0.85 0.10 13.80 3.01 -11.34 0.59 0.59 0.59
31 0.09 2.51 0.88 0.11 13.78 3.05 -11.27 0.66 0.66 0.66
32 0.10 2.62 0.93 0.11 13.74 3.12 -11.12 0.80 0.80 0.80
33 0.12 2.83 1.00 0.13 13.68 3.24 -10.85 0.91 0.91 0.91
34 0.13 2.99 1.06 0.15 13.57 3.40 -10.58 1.01 1.01 1.01
35 0.15 3.12 1.10 0.17 13.43 3.55 -10.31 1.01 1.01 1.01
36 0.15 3.10 1.10 0.18 13.18 3.64 -10.08 0.99 0.99 0.99
37 0.14 3.08 1.10 0.19 12.87 3.67 -9.78 0.96 0.96 0.96
38 0.14 3.04 1.08 0.18 12.53 3.66 -9.48 0.88 0.88 0.88
39 0.13 2.96 1.04 0.18 12.23 3.62 -9.27 0.87 0.87 0.87
40 0.13 2.96 1.03 0.17 11.98 3.57 -9.02 0.89 0.89 0.89
41 0.13 2.98 1.04 0.16 11.82 3.55 -8.84 0.86 0.86 0.86
42 0.12 2.94 1.02 0.16 11.83 3.55 -8.89 0.88 0.88 0.88
43 0.13 2.96 1.04 0.16 12.12 3.53 -9.16 0.86 0.86 0.86
44 0.12 2.93 1.03 0.16 12.70 3.51 -9.77 0.78 0.78 0.78
45 0.11 2.83 0.99 0.16 13.45 3.45 -10.62 0.76 0.76 0.76
46 0.11 2.78 0.98 0.15 14.31 3.36 -11.53 0.71 0.71 0.71
47 0.10 2.72 0.94 0.14 14.69 3.30 -11.98 0.68 0.68 0.68
Weekday 0.158 3.1 1.15 0.144 13.4 3.35 1.09 1.09 1.09
Weekend 0.112 2.8 0.97 0.144 13.4 3.35 0.77 0.77 0.77
ADWF(1)0.145 3.0 1.10 0.144 13.4 3.35 1.00 1.00 1.00
Weekday -8.7%11.38
Weekend 29.0%11.98
Note:
FLOW MONITORING SITE A7 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
3.0
6.0
9.0
12.0
15.0
18.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.2
0.4
0.6
0.8
1.0
1.2
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 951 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.05 2.44 0.67 0.06 2.38 0.73 0.06 0.65 0.65 0.65
1 0.04 2.23 0.61 0.05 2.18 0.70 0.05 0.54 0.54 0.54
2 0.03 2.08 0.56 0.04 1.98 0.66 0.11 0.50 0.50 0.50
3 0.03 2.01 0.54 0.03 1.81 0.63 0.20 0.51 0.51 0.51
4 0.03 2.02 0.54 0.03 1.71 0.61 0.31 0.55 0.55 0.55
5 0.03 2.09 0.56 0.03 1.67 0.60 0.43 0.64 0.64 0.64
6 0.04 2.23 0.60 0.03 1.70 0.61 0.53 0.72 0.72 0.72
7 0.04 2.35 0.64 0.03 1.79 0.63 0.55 0.86 0.86 0.86
8 0.05 2.53 0.69 0.04 1.93 0.66 0.60 1.03 1.03 1.03
9 0.06 2.72 0.75 0.05 2.11 0.69 0.61 1.14 1.14 1.14
10 0.07 2.84 0.78 0.05 2.29 0.72 0.56 1.20 1.20 1.20
11 0.07 2.90 0.80 0.06 2.44 0.75 0.46 1.26 1.26 1.26
12 0.07 2.96 0.82 0.07 2.53 0.77 0.43 1.26 1.26 1.26
13 0.07 2.96 0.82 0.07 2.59 0.78 0.37 1.22 1.22 1.22
14 0.07 2.92 0.81 0.07 2.61 0.78 0.31 1.18 1.18 1.18
15 0.07 2.89 0.80 0.07 2.59 0.78 0.29 1.23 1.23 1.23
16 0.07 2.94 0.81 0.07 2.57 0.77 0.37 1.24 1.24 1.24
17 0.07 2.94 0.81 0.07 2.58 0.77 0.37 1.30 1.30 1.30
18 0.07 3.01 0.83 0.07 2.61 0.78 0.40 1.36 1.36 1.36
19 0.08 3.07 0.85 0.07 2.65 0.79 0.41 1.36 1.36 1.36
20 0.08 3.07 0.85 0.08 2.70 0.80 0.36 1.28 1.28 1.28
21 0.07 2.98 0.83 0.08 2.71 0.80 0.27 1.15 1.15 1.15
22 0.07 2.84 0.79 0.07 2.66 0.79 0.19 0.99 0.99 0.99
23 0.06 2.66 0.74 0.07 2.54 0.76 0.13 0.79 0.79 0.79
24 0.05 2.53 0.70 0.06 2.39 0.74 0.15 0.71 0.71 0.71
25 0.04 2.33 0.64 0.05 2.22 0.71 0.11 0.57 0.57 0.57
26 0.03 2.13 0.58 0.04 2.05 0.67 0.08 0.52 0.52 0.52
27 0.03 2.04 0.55 0.04 1.88 0.64 0.16 0.54 0.54 0.54
28 0.03 2.07 0.56 0.03 1.75 0.61 0.32 0.50 0.50 0.50
29 0.03 2.02 0.54 0.03 1.69 0.60 0.33 0.51 0.51 0.51
30 0.03 2.03 0.55 0.03 1.67 0.60 0.36 0.60 0.60 0.60
31 0.03 2.16 0.59 0.03 1.67 0.60 0.49 0.73 0.73 0.73
32 0.04 2.34 0.64 0.03 1.74 0.62 0.60 0.96 0.96 0.96
33 0.06 2.63 0.73 0.04 1.92 0.65 0.71 1.19 1.19 1.19
34 0.07 2.87 0.81 0.05 2.18 0.71 0.69 1.31 1.31 1.31
35 0.08 3.00 0.84 0.06 2.44 0.75 0.56 1.42 1.42 1.42
36 0.08 3.11 0.87 0.07 2.63 0.78 0.49 1.45 1.45 1.45
37 0.08 3.14 0.87 0.08 2.74 0.80 0.40 1.32 1.32 1.32
38 0.08 3.01 0.84 0.08 2.78 0.81 0.23 1.29 1.29 1.29
39 0.07 2.97 0.83 0.08 2.73 0.80 0.24 1.22 1.22 1.22
40 0.07 2.90 0.82 0.07 2.66 0.79 0.24 1.23 1.23 1.23
41 0.07 2.92 0.82 0.07 2.61 0.78 0.30 1.23 1.23 1.23
42 0.07 2.92 0.82 0.07 2.59 0.78 0.33 1.28 1.28 1.28
43 0.07 2.97 0.83 0.07 2.60 0.78 0.37 1.26 1.26 1.26
44 0.07 2.95 0.83 0.07 2.62 0.78 0.33 1.26 1.26 1.26
45 0.07 2.95 0.82 0.07 2.62 0.78 0.33 1.08 1.08 1.08
46 0.06 2.76 0.77 0.07 2.59 0.77 0.17 0.98 0.98 0.98
47 0.06 2.65 0.74 0.06 2.49 0.76 0.16 0.88 0.88 0.88
Weekday 0.057 2.7 0.73 0.056 2.3 0.72 1.00 1.00 1.00
Weekend 0.057 2.6 0.73 0.056 2.3 0.72 1.00 1.00 1.00
ADWF(1)0.057 2.7 0.73 0.056 2.3 0.72 1.00 1.00 1.00
Weekday -1.8% 0.61
Weekend -1.9% 0.71
Note:
FLOW MONITORING SITE A9 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.05
0.10
0.15
0.20
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 952 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.26 5.25 0.80 0.31 4.73 1.56 0.52 0.76 0.76 0.76
1 0.22 4.88 0.73 0.29 4.52 1.55 0.36 0.62 0.62 0.62
2 0.18 4.54 0.67 0.25 4.24 1.53 0.30 0.54 0.54 0.54
3 0.15 4.31 0.62 0.22 3.94 1.50 0.36 0.50 0.50 0.50
4 0.14 4.21 0.60 0.19 3.70 1.48 0.52 0.50 0.50 0.50
5 0.14 4.23 0.59 0.18 3.54 1.47 0.69 0.55 0.55 0.55
6 0.16 4.42 0.62 0.17 3.51 1.47 0.91 0.68 0.68 0.68
7 0.19 4.76 0.68 0.18 3.61 1.48 1.16 0.84 0.84 0.84
8 0.24 5.18 0.74 0.21 3.83 1.50 1.35 0.95 0.95 0.95
9 0.27 5.49 0.78 0.24 4.11 1.52 1.38 1.06 1.06 1.06
10 0.30 5.73 0.82 0.27 4.35 1.54 1.38 1.17 1.17 1.17
11 0.33 5.96 0.85 0.29 4.53 1.55 1.44 1.21 1.21 1.21
12 0.35 6.07 0.86 0.30 4.66 1.56 1.41 1.24 1.24 1.24
13 0.35 6.12 0.87 0.32 4.75 1.56 1.37 1.23 1.23 1.23
14 0.35 6.09 0.87 0.32 4.81 1.57 1.28 1.20 1.20 1.20
15 0.34 6.03 0.87 0.32 4.82 1.57 1.21 1.22 1.22 1.22
16 0.35 6.06 0.87 0.32 4.80 1.57 1.26 1.24 1.24 1.24
17 0.35 6.10 0.88 0.32 4.80 1.57 1.30 1.28 1.28 1.28
18 0.37 6.17 0.89 0.33 4.83 1.57 1.34 1.33 1.33 1.33
19 0.38 6.23 0.91 0.33 4.88 1.57 1.35 1.33 1.33 1.33
20 0.38 6.21 0.92 0.34 4.94 1.58 1.27 1.29 1.29 1.29
21 0.37 6.10 0.91 0.34 4.96 1.58 1.14 1.22 1.22 1.22
22 0.35 5.92 0.90 0.34 4.93 1.58 0.99 1.10 1.10 1.10
23 0.31 5.67 0.86 0.33 4.86 1.57 0.81 0.92 0.92 0.92
24 0.27 5.32 0.81 0.31 4.73 1.56 0.59 0.81 0.81 0.81
25 0.23 5.01 0.76 0.29 4.53 1.55 0.47 0.68 0.68 0.68
26 0.20 4.69 0.70 0.26 4.30 1.53 0.39 0.59 0.59 0.59
27 0.17 4.46 0.65 0.23 4.04 1.51 0.42 0.53 0.53 0.53
28 0.15 4.31 0.61 0.20 3.79 1.49 0.52 0.48 0.48 0.48
29 0.14 4.18 0.58 0.18 3.60 1.48 0.58 0.47 0.47 0.47
30 0.13 4.18 0.57 0.17 3.48 1.47 0.69 0.52 0.52 0.52
31 0.15 4.32 0.60 0.17 3.43 1.47 0.89 0.64 0.64 0.64
32 0.18 4.67 0.65 0.17 3.50 1.47 1.17 0.87 0.87 0.87
33 0.25 5.29 0.75 0.20 3.72 1.49 1.58 1.09 1.09 1.09
34 0.31 5.83 0.82 0.24 4.08 1.52 1.75 1.25 1.25 1.25
35 0.36 6.22 0.86 0.28 4.47 1.55 1.74 1.33 1.33 1.33
36 0.38 6.42 0.88 0.32 4.78 1.57 1.63 1.37 1.37 1.37
37 0.39 6.48 0.89 0.34 4.97 1.58 1.51 1.38 1.38 1.38
38 0.39 6.47 0.90 0.35 5.06 1.58 1.42 1.32 1.32 1.32
39 0.38 6.34 0.88 0.36 5.06 1.58 1.28 1.27 1.27 1.27
40 0.36 6.26 0.87 0.35 5.01 1.58 1.25 1.27 1.27 1.27
41 0.36 6.22 0.87 0.34 4.95 1.58 1.27 1.25 1.25 1.25
42 0.36 6.18 0.87 0.33 4.91 1.57 1.28 1.27 1.27 1.27
43 0.36 6.15 0.89 0.33 4.88 1.57 1.27 1.25 1.25 1.25
44 0.36 6.07 0.89 0.33 4.87 1.57 1.20 1.22 1.22 1.22
45 0.35 5.96 0.89 0.33 4.86 1.57 1.10 1.17 1.17 1.17
46 0.33 5.83 0.88 0.33 4.82 1.57 1.01 1.07 1.07 1.07
47 0.31 5.60 0.85 0.32 4.76 1.57 0.84 0.94 0.94 0.94
Weekday 0.285 5.5 0.80 0.280 4.4 1.54 1.00 1.00 1.00
Weekend 0.286 5.5 0.79 0.280 4.4 1.54 1.00 1.00 1.00
ADWF(1)0.285 5.5 0.79 0.280 4.4 1.54 1.00 1.00 1.00
Weekday -1.9% 1.44
Weekend -2.0% 1.75
Note:
FLOW MONITORING SITE A10 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.20
0.40
0.60
0.80
1.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
4.0
8.0
12.0
16.0
20.0
24.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 953 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.06 2.23 0.77 0.07 2.05 2.10 0.18 0.69 0.69 0.69
1 0.04 2.04 0.69 0.06 1.86 1.99 0.18 0.56 0.56 0.56
2 0.04 1.88 0.63 0.05 1.66 1.89 0.22 0.49 0.49 0.49
3 0.03 1.79 0.59 0.04 1.52 1.79 0.27 0.46 0.46 0.46
4 0.03 1.74 0.57 0.04 1.40 1.72 0.34 0.50 0.50 0.50
5 0.03 1.79 0.60 0.04 1.34 1.69 0.45 0.56 0.56 0.56
6 0.04 1.89 0.64 0.04 1.35 1.70 0.54 0.71 0.71 0.71
7 0.05 2.07 0.71 0.04 1.43 1.76 0.64 0.82 0.82 0.82
8 0.05 2.19 0.76 0.05 1.56 1.84 0.63 1.02 1.02 1.02
9 0.07 2.38 0.84 0.06 1.73 1.93 0.65 1.13 1.13 1.13
10 0.07 2.49 0.88 0.07 1.94 2.03 0.55 1.19 1.19 1.19
11 0.08 2.54 0.90 0.07 2.08 2.11 0.46 1.25 1.25 1.25
12 0.08 2.59 0.92 0.08 2.18 2.16 0.41 1.26 1.26 1.26
13 0.08 2.60 0.92 0.08 2.25 2.19 0.35 1.24 1.24 1.24
14 0.08 2.58 0.91 0.09 2.28 2.20 0.30 1.20 1.20 1.20
15 0.08 2.55 0.90 0.09 2.27 2.19 0.28 1.21 1.21 1.21
16 0.08 2.56 0.90 0.08 2.25 2.18 0.31 1.24 1.24 1.24
17 0.08 2.58 0.91 0.08 2.25 2.18 0.33 1.27 1.27 1.27
18 0.08 2.61 0.92 0.09 2.29 2.20 0.32 1.35 1.35 1.35
19 0.09 2.67 0.95 0.09 2.35 2.22 0.32 1.36 1.36 1.36
20 0.09 2.68 0.95 0.09 2.36 2.24 0.32 1.32 1.32 1.32
21 0.09 2.65 0.94 0.09 2.37 2.25 0.28 1.20 1.20 1.20
22 0.08 2.55 0.90 0.09 2.32 2.23 0.23 1.04 1.04 1.04
23 0.07 2.41 0.84 0.08 2.23 2.17 0.18 0.86 0.86 0.86
24 0.06 2.24 0.77 0.07 2.05 2.10 0.19 0.74 0.74 0.74
25 0.05 2.11 0.72 0.06 1.90 2.01 0.20 0.61 0.61 0.61
26 0.04 1.96 0.66 0.06 1.73 1.93 0.23 0.50 0.50 0.50
27 0.03 1.81 0.60 0.05 1.56 1.83 0.24 0.48 0.48 0.48
28 0.03 1.78 0.59 0.04 1.43 1.75 0.35 0.47 0.47 0.47
29 0.03 1.77 0.59 0.04 1.37 1.71 0.40 0.47 0.47 0.47
30 0.03 1.76 0.59 0.04 1.34 1.69 0.42 0.56 0.56 0.56
31 0.04 1.87 0.64 0.04 1.34 1.69 0.54 0.71 0.71 0.71
32 0.05 2.06 0.71 0.04 1.39 1.73 0.67 0.94 0.94 0.94
33 0.06 2.31 0.81 0.05 1.53 1.82 0.78 1.17 1.17 1.17
34 0.08 2.52 0.89 0.06 1.79 1.97 0.74 1.31 1.31 1.31
35 0.09 2.64 0.94 0.07 2.05 2.11 0.59 1.43 1.43 1.43
36 0.09 2.73 0.97 0.09 2.27 2.20 0.46 1.48 1.48 1.48
37 0.10 2.77 0.99 0.09 2.41 2.26 0.36 1.40 1.40 1.40
38 0.09 2.72 0.96 0.10 2.47 2.28 0.25 1.33 1.33 1.33
39 0.09 2.66 0.94 0.09 2.44 2.26 0.21 1.28 1.28 1.28
40 0.08 2.62 0.92 0.09 2.38 2.23 0.25 1.23 1.23 1.23
41 0.08 2.59 0.91 0.09 2.32 2.20 0.26 1.26 1.26 1.26
42 0.08 2.61 0.92 0.09 2.31 2.19 0.30 1.24 1.24 1.24
43 0.08 2.59 0.91 0.09 2.31 2.19 0.28 1.27 1.27 1.27
44 0.08 2.61 0.92 0.09 2.28 2.20 0.33 1.24 1.24 1.24
45 0.08 2.59 0.91 0.09 2.28 2.21 0.30 1.16 1.16 1.16
46 0.08 2.52 0.88 0.09 2.25 2.19 0.27 1.01 1.01 1.01
47 0.07 2.38 0.83 0.08 2.18 2.15 0.21 0.86 0.86 0.86
Weekday 0.065 2.3 0.82 0.069 2.0 2.04 1.00 1.00 1.00
Weekend 0.066 2.3 0.82 0.069 2.0 2.04 1.01 1.01 1.01
ADWF(1)0.065 2.3 0.82 0.069 2.0 2.04 1.00 1.00 1.00
Weekday 5.9% 0.65
Weekend 4.9% 0.78
Note:
FLOW MONITORING SITE A11 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 954 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.01 0.64 0.63 0.01 0.92 0.05 -0.28 0.29 0.29 0.29
1 0.01 0.58 0.55 0.01 0.76 0.04 -0.18 0.27 0.27 0.27
2 0.00 0.55 0.53 0.01 0.67 0.03 -0.12 0.29 0.29 0.29
3 0.01 0.54 0.57 0.01 0.65 0.03 -0.11 0.33 0.33 0.33
4 0.01 0.56 0.61 0.01 0.68 0.04 -0.12 0.45 0.45 0.45
5 0.01 0.63 0.68 0.01 0.75 0.05 -0.12 0.73 0.73 0.73
6 0.01 0.72 0.90 0.01 0.91 0.07 -0.19 1.05 1.05 1.05
7 0.02 0.84 1.08 0.02 1.14 0.10 -0.30 1.28 1.28 1.28
8 0.02 0.90 1.22 0.02 1.32 0.12 -0.43 1.50 1.50 1.50
9 0.03 0.94 1.37 0.03 1.46 0.14 -0.52 1.41 1.41 1.41
10 0.03 0.93 1.29 0.03 1.51 0.14 -0.58 1.26 1.26 1.26
11 0.02 0.89 1.22 0.03 1.46 0.13 -0.57 1.24 1.24 1.24
12 0.02 0.89 1.23 0.02 1.41 0.12 -0.52 1.13 1.13 1.13
13 0.02 0.86 1.17 0.02 1.37 0.11 -0.50 1.11 1.11 1.11
14 0.02 0.86 1.15 0.02 1.33 0.10 -0.47 1.10 1.10 1.10
15 0.02 0.85 1.14 0.02 1.31 0.10 -0.46 1.02 1.02 1.02
16 0.02 0.83 1.13 0.02 1.29 0.10 -0.45 1.18 1.18 1.18
17 0.02 0.88 1.19 0.02 1.30 0.10 -0.42 1.54 1.54 1.54
18 0.03 0.95 1.36 0.03 1.43 0.12 -0.48 1.59 1.59 1.59
19 0.03 0.97 1.42 0.03 1.55 0.13 -0.58 1.43 1.43 1.43
20 0.03 0.93 1.34 0.03 1.55 0.13 -0.61 1.09 1.09 1.09
21 0.02 0.85 1.16 0.03 1.43 0.12 -0.58 0.78 0.78 0.78
22 0.01 0.77 0.97 0.02 1.25 0.09 -0.48 0.63 0.63 0.63
23 0.01 0.72 0.80 0.01 1.08 0.07 -0.36 0.38 0.38 0.38
24 0.01 0.66 0.74 0.01 0.92 0.05 -0.26 0.51 0.51 0.51
25 0.01 0.65 0.69 0.01 0.84 0.05 -0.19 0.41 0.41 0.41
26 0.01 0.60 0.63 0.01 0.80 0.05 -0.20 0.30 0.30 0.30
27 0.01 0.54 0.58 0.01 0.72 0.04 -0.18 0.32 0.32 0.32
28 0.01 0.53 0.59 0.01 0.66 0.04 -0.12 0.39 0.39 0.39
29 0.01 0.60 0.62 0.01 0.68 0.04 -0.08 0.45 0.45 0.45
30 0.01 0.62 0.71 0.01 0.74 0.05 -0.12 0.79 0.79 0.79
31 0.01 0.71 0.97 0.01 0.88 0.06 -0.17 1.27 1.27 1.27
32 0.02 0.82 1.33 0.02 1.14 0.10 -0.31 1.64 1.64 1.64
33 0.03 0.92 1.55 0.02 1.38 0.13 -0.47 1.87 1.87 1.87
34 0.03 1.00 1.59 0.03 1.54 0.15 -0.54 1.90 1.90 1.90
35 0.03 1.01 1.56 0.03 1.61 0.15 -0.59 1.72 1.72 1.72
36 0.03 0.99 1.49 0.03 1.59 0.14 -0.60 1.62 1.62 1.62
37 0.03 0.95 1.42 0.03 1.53 0.13 -0.57 1.55 1.55 1.55
38 0.03 0.95 1.39 0.03 1.48 0.12 -0.53 1.40 1.40 1.40
39 0.03 0.93 1.33 0.03 1.43 0.11 -0.50 1.42 1.42 1.42
40 0.03 0.91 1.39 0.02 1.39 0.11 -0.48 1.37 1.37 1.37
41 0.02 0.93 1.32 0.02 1.38 0.11 -0.45 1.48 1.48 1.48
42 0.03 0.93 1.40 0.02 1.39 0.11 -0.46 1.42 1.42 1.42
43 0.03 0.92 1.34 0.02 1.40 0.11 -0.48 1.27 1.27 1.27
44 0.02 0.89 1.30 0.02 1.37 0.11 -0.48 1.15 1.15 1.15
45 0.02 0.85 1.27 0.02 1.30 0.10 -0.45 0.87 0.87 0.87
46 0.02 0.78 1.11 0.02 1.20 0.09 -0.42 0.63 0.63 0.63
47 0.01 0.71 0.86 0.01 1.05 0.07 -0.33 0.53 0.53 0.53
Weekday 0.018 0.8 1.03 0.019 1.2 0.09 0.96 0.96 0.96
Weekend 0.020 0.8 1.13 0.019 1.2 0.09 1.09 1.09 1.09
ADWF(1)0.018 0.8 1.06 0.019 1.2 0.09 1.00 1.00 1.00
Weekday 7.2% 0.61
Weekend -5.7% 0.60
Note:
FLOW MONITORING SITE A12 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.02
0.04
0.06
0.08
0.10
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 955 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.03 1.79 0.80 0.04 1.85 1.11 -0.06 0.50 0.50 0.50
1 0.02 1.57 0.71 0.03 1.59 1.03 -0.01 0.41 0.41 0.41
2 0.02 1.46 0.65 0.02 1.38 0.93 0.08 0.34 0.34 0.34
3 0.02 1.37 0.60 0.02 1.27 0.88 0.11 0.36 0.36 0.36
4 0.02 1.38 0.60 0.02 1.39 0.93 -0.01 0.48 0.48 0.48
5 0.02 1.54 0.68 0.01 1.17 0.85 0.37 0.65 0.65 0.65
6 0.03 1.75 0.77 0.02 1.38 0.94 0.36 0.86 0.86 0.86
7 0.04 1.96 0.87 0.03 1.72 1.07 0.24 1.02 1.02 1.02
8 0.04 2.12 0.93 0.04 1.86 1.12 0.26 1.17 1.17 1.17
9 0.05 2.28 0.98 0.05 2.02 1.22 0.26 1.26 1.26 1.26
10 0.06 2.35 1.01 0.05 2.16 1.23 0.19 1.30 1.30 1.30
11 0.06 2.38 1.02 0.06 2.33 1.29 0.05 1.30 1.30 1.30
12 0.06 2.38 1.02 0.06 2.36 1.31 0.02 1.22 1.22 1.22
13 0.05 2.32 1.00 0.06 2.30 1.30 0.02 1.15 1.15 1.15
14 0.05 2.25 0.99 0.05 2.16 1.25 0.08 1.15 1.15 1.15
15 0.05 2.22 0.99 0.05 2.15 1.22 0.07 1.20 1.20 1.20
16 0.05 2.26 1.01 0.05 2.27 1.26 -0.01 1.27 1.27 1.27
17 0.06 2.31 1.04 0.06 2.24 1.28 0.07 1.40 1.40 1.40
18 0.06 2.40 1.08 0.05 2.22 1.26 0.18 1.46 1.46 1.46
19 0.06 2.45 1.10 0.06 2.31 1.28 0.14 1.43 1.43 1.43
20 0.06 2.43 1.09 0.06 2.36 1.31 0.07 1.28 1.28 1.28
21 0.06 2.31 1.04 0.06 2.34 1.31 -0.03 1.08 1.08 1.08
22 0.05 2.15 0.98 0.05 2.20 1.26 -0.05 0.89 0.89 0.89
23 0.04 1.98 0.91 0.04 2.06 1.18 -0.09 0.67 0.67 0.67
24 0.03 1.77 0.86 0.04 1.95 1.18 -0.18 0.56 0.56 0.56
25 0.02 1.58 0.78 0.03 1.79 1.09 -0.21 0.45 0.45 0.45
26 0.02 1.42 0.72 0.03 1.58 1.00 -0.16 0.33 0.33 0.33
27 0.01 1.26 0.64 0.02 1.53 0.99 -0.26 0.31 0.31 0.31
28 0.01 1.21 0.63 0.01 1.12 0.82 0.09 0.32 0.32 0.32
29 0.01 1.24 0.62 0.01 1.15 0.83 0.08 0.38 0.38 0.38
30 0.02 1.34 0.67 0.01 1.07 0.81 0.27 0.56 0.56 0.56
31 0.02 1.55 0.78 0.02 1.26 0.88 0.30 0.89 0.89 0.89
32 0.04 1.91 0.93 0.03 1.72 1.09 0.19 1.24 1.24 1.24
33 0.05 2.23 1.05 0.04 2.01 1.19 0.22 1.46 1.46 1.46
34 0.06 2.43 1.11 0.05 2.11 1.23 0.32 1.53 1.53 1.53
35 0.07 2.49 1.13 0.06 2.33 1.29 0.16 1.56 1.56 1.56
36 0.07 2.50 1.14 0.06 2.40 1.32 0.10 1.50 1.50 1.50
37 0.07 2.46 1.12 0.07 2.47 1.35 -0.01 1.40 1.40 1.40
38 0.06 2.38 1.10 0.07 2.49 1.35 -0.10 1.30 1.30 1.30
39 0.06 2.31 1.06 0.06 2.43 1.32 -0.12 1.26 1.26 1.26
40 0.06 2.28 1.05 0.06 2.36 1.31 -0.08 1.31 1.31 1.31
41 0.06 2.32 1.07 0.06 2.26 1.29 0.05 1.35 1.35 1.35
42 0.06 2.35 1.08 0.05 2.22 1.26 0.13 1.37 1.37 1.37
43 0.06 2.36 1.08 0.05 2.25 1.26 0.11 1.35 1.35 1.35
44 0.06 2.34 1.08 0.05 2.28 1.26 0.07 1.25 1.25 1.25
45 0.05 2.30 1.04 0.05 2.27 1.26 0.03 1.06 1.06 1.06
46 0.05 2.15 0.97 0.05 2.25 1.25 -0.09 0.90 0.90 0.90
47 0.04 2.02 0.90 0.05 2.13 1.24 -0.11 0.73 0.73 0.73
Weekday 0.044 2.1 0.91 0.043 2.0 1.16 0.99 0.99 0.99
Weekend 0.044 2.0 0.94 0.044 2.0 1.16 1.02 1.02 1.02
ADWF(1)0.044 2.0 0.92 0.043 2.0 1.16 1.00 1.00 1.00
Weekday -1.1% 0.37
Weekend -0.7% 0.32
Note:
FLOW MONITORING SITE A13 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.05
0.10
0.15
0.20
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 956 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.14 4.29 0.66 0.15 3.09 1.69 1.20 0.63 0.63 0.63
1 0.11 3.83 0.66 0.12 2.83 1.60 1.00 0.58 0.58 0.58
2 0.10 3.42 0.71 0.10 2.58 1.52 0.84 0.56 0.56 0.56
3 0.10 3.19 0.77 0.09 2.43 1.47 0.76 0.59 0.59 0.59
4 0.10 3.12 0.83 0.09 2.37 1.45 0.75 0.66 0.66 0.66
5 0.12 3.21 0.90 0.09 2.42 1.47 0.79 0.79 0.79 0.79
6 0.14 3.49 0.94 0.10 2.59 1.53 0.90 0.91 0.91 0.91
7 0.16 3.91 0.92 0.12 2.83 1.61 1.09 1.01 1.01 1.01
8 0.18 4.37 0.86 0.14 3.06 1.68 1.32 1.11 1.11 1.11
9 0.20 4.71 0.86 0.16 3.25 1.74 1.46 1.16 1.16 1.16
10 0.21 4.94 0.83 0.18 3.43 1.79 1.51 1.20 1.20 1.20
11 0.21 5.13 0.82 0.19 3.56 1.83 1.57 1.23 1.23 1.23
12 0.22 5.22 0.81 0.21 3.66 1.86 1.57 1.22 1.22 1.22
13 0.22 5.25 0.80 0.21 3.70 1.87 1.55 1.19 1.19 1.19
14 0.21 5.21 0.79 0.21 3.70 1.87 1.51 1.18 1.18 1.18
15 0.21 5.17 0.80 0.21 3.68 1.86 1.49 1.21 1.21 1.21
16 0.22 5.20 0.81 0.21 3.68 1.86 1.52 1.23 1.23 1.23
17 0.22 5.23 0.81 0.21 3.71 1.87 1.52 1.23 1.23 1.23
18 0.22 5.28 0.80 0.21 3.73 1.88 1.55 1.21 1.21 1.21
19 0.22 5.30 0.79 0.21 3.73 1.88 1.58 1.20 1.20 1.20
20 0.21 5.29 0.78 0.21 3.70 1.87 1.59 1.12 1.12 1.12
21 0.20 5.19 0.75 0.20 3.64 1.85 1.55 1.01 1.01 1.01
22 0.18 5.03 0.71 0.19 3.49 1.81 1.53 0.91 0.91 0.91
23 0.16 4.78 0.68 0.17 3.31 1.76 1.46 0.76 0.76 0.76
24 0.14 4.40 0.67 0.15 3.10 1.69 1.30 0.67 0.67 0.67
25 0.12 3.99 0.66 0.12 2.84 1.61 1.15 0.59 0.59 0.59
26 0.11 3.59 0.68 0.10 2.61 1.53 0.98 0.56 0.56 0.56
27 0.10 3.32 0.72 0.09 2.43 1.47 0.89 0.56 0.56 0.56
28 0.10 3.17 0.77 0.08 2.34 1.43 0.83 0.59 0.59 0.59
29 0.10 3.09 0.84 0.08 2.33 1.43 0.77 0.64 0.64 0.64
30 0.11 3.14 0.90 0.09 2.38 1.45 0.76 0.73 0.73 0.73
31 0.13 3.32 0.95 0.10 2.50 1.49 0.83 0.91 0.91 0.91
32 0.16 3.81 0.96 0.11 2.71 1.57 1.09 1.11 1.11 1.11
33 0.20 4.51 0.91 0.14 3.04 1.68 1.47 1.26 1.26 1.26
34 0.22 5.04 0.88 0.18 3.40 1.79 1.64 1.30 1.30 1.30
35 0.23 5.32 0.84 0.21 3.66 1.86 1.66 1.33 1.33 1.33
36 0.24 5.44 0.83 0.22 3.80 1.89 1.64 1.32 1.32 1.32
37 0.24 5.47 0.82 0.23 3.87 1.90 1.60 1.33 1.33 1.33
38 0.24 5.47 0.82 0.23 3.90 1.90 1.57 1.30 1.30 1.30
39 0.23 5.40 0.82 0.23 3.88 1.90 1.52 1.28 1.28 1.28
40 0.23 5.35 0.82 0.22 3.84 1.89 1.51 1.26 1.26 1.26
41 0.22 5.32 0.81 0.22 3.79 1.89 1.52 1.26 1.26 1.26
42 0.22 5.29 0.82 0.22 3.77 1.89 1.53 1.22 1.22 1.22
43 0.22 5.27 0.80 0.21 3.73 1.88 1.53 1.18 1.18 1.18
44 0.21 5.19 0.79 0.21 3.66 1.86 1.52 1.11 1.11 1.11
45 0.20 5.11 0.76 0.20 3.57 1.83 1.54 1.03 1.03 1.03
46 0.18 4.99 0.73 0.18 3.45 1.80 1.54 0.93 0.93 0.93
47 0.16 4.72 0.71 0.17 3.29 1.75 1.43 0.79 0.79 0.79
Weekday 0.177 4.6 0.80 0.167 3.3 1.73 1.00 1.00 1.00
Weekend 0.180 4.6 0.80 0.167 3.2 1.72 1.01 1.01 1.01
ADWF(1)0.178 4.6 0.80 0.167 3.3 1.73 1.00 1.00 1.00
Weekday -6.0% 1.59
Weekend -7.4% 1.66
Note:
% Error
Measured Data Modeled Data Diurnal
WeekdayWeekendAverage
City of Auburn
Collection System Planning Project
FLOW MONITORING SITE A14 DRY WEATHER FLOW CALIBRATION
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
5.0
10.0
15.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 957 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.04 2.57 0.36 0.05 1.93 0.79 0.64 0.52 0.52 0.52
1 0.03 2.39 0.32 0.04 1.73 0.74 0.66 0.43 0.43 0.43
2 0.02 2.26 0.28 0.03 1.55 0.69 0.71 0.38 0.38 0.38
3 0.02 2.18 0.27 0.03 1.42 0.65 0.76 0.42 0.42 0.42
4 0.02 2.22 0.28 0.02 1.37 0.64 0.86 0.51 0.51 0.51
5 0.03 2.35 0.31 0.03 1.42 0.66 0.93 0.65 0.65 0.65
6 0.04 2.53 0.36 0.03 1.56 0.70 0.97 0.78 0.78 0.78
7 0.04 2.67 0.40 0.04 1.74 0.74 0.93 0.89 0.89 0.89
8 0.05 2.81 0.43 0.05 1.90 0.78 0.91 1.06 1.06 1.06
9 0.06 2.97 0.47 0.05 2.05 0.82 0.91 1.18 1.18 1.18
10 0.07 3.07 0.49 0.06 2.20 0.85 0.87 1.28 1.28 1.28
11 0.07 3.16 0.51 0.07 2.32 0.88 0.83 1.33 1.33 1.33
12 0.07 3.20 0.52 0.07 2.40 0.90 0.80 1.33 1.33 1.33
13 0.08 3.21 0.52 0.08 2.44 0.91 0.77 1.32 1.32 1.32
14 0.07 3.19 0.52 0.08 2.45 0.91 0.74 1.31 1.31 1.31
15 0.07 3.19 0.52 0.08 2.44 0.91 0.75 1.34 1.34 1.34
16 0.08 3.21 0.52 0.08 2.44 0.91 0.77 1.35 1.35 1.35
17 0.08 3.23 0.53 0.08 2.46 0.91 0.77 1.34 1.34 1.34
18 0.08 3.22 0.52 0.08 2.47 0.91 0.76 1.33 1.33 1.33
19 0.08 3.22 0.52 0.08 2.46 0.91 0.76 1.28 1.28 1.28
20 0.07 3.17 0.51 0.08 2.44 0.91 0.73 1.13 1.13 1.13
21 0.06 3.05 0.48 0.07 2.37 0.89 0.68 1.01 1.01 1.01
22 0.06 2.94 0.45 0.06 2.25 0.86 0.69 0.85 0.85 0.85
23 0.05 2.79 0.41 0.06 2.11 0.83 0.68 0.66 0.66 0.66
24 0.04 2.60 0.36 0.05 1.92 0.78 0.69 0.54 0.54 0.54
25 0.03 2.45 0.32 0.04 1.71 0.73 0.73 0.44 0.44 0.44
26 0.02 2.30 0.29 0.03 1.54 0.69 0.76 0.40 0.40 0.40
27 0.02 2.24 0.27 0.02 1.41 0.65 0.82 0.39 0.39 0.39
28 0.02 2.21 0.27 0.02 1.35 0.63 0.87 0.40 0.40 0.40
29 0.02 2.23 0.27 0.02 1.33 0.63 0.90 0.46 0.46 0.46
30 0.03 2.29 0.30 0.02 1.36 0.64 0.93 0.56 0.56 0.56
31 0.03 2.43 0.33 0.03 1.45 0.66 0.98 0.78 0.78 0.78
32 0.04 2.68 0.39 0.03 1.63 0.71 1.06 1.09 1.09 1.09
33 0.06 2.98 0.47 0.05 1.91 0.78 1.08 1.34 1.34 1.34
34 0.08 3.21 0.52 0.06 2.20 0.86 1.01 1.49 1.49 1.49
35 0.08 3.33 0.55 0.07 2.41 0.90 0.92 1.58 1.58 1.58
36 0.09 3.40 0.57 0.08 2.54 0.93 0.86 1.60 1.60 1.60
37 0.09 3.41 0.57 0.09 2.60 0.94 0.81 1.58 1.58 1.58
38 0.09 3.40 0.57 0.09 2.62 0.95 0.78 1.52 1.52 1.52
39 0.09 3.34 0.56 0.09 2.59 0.94 0.75 1.47 1.47 1.47
40 0.08 3.31 0.55 0.08 2.55 0.93 0.76 1.44 1.44 1.44
41 0.08 3.29 0.55 0.08 2.52 0.92 0.77 1.43 1.43 1.43
42 0.08 3.27 0.54 0.08 2.49 0.92 0.78 1.32 1.32 1.32
43 0.07 3.19 0.52 0.08 2.45 0.91 0.74 1.24 1.24 1.24
44 0.07 3.13 0.50 0.07 2.38 0.89 0.75 1.13 1.13 1.13
45 0.06 3.04 0.48 0.07 2.29 0.87 0.74 1.04 1.04 1.04
46 0.06 2.94 0.46 0.06 2.20 0.85 0.74 0.86 0.86 0.86
47 0.05 2.78 0.42 0.05 2.08 0.82 0.71 0.67 0.67 0.67
Weekday 0.056 2.9 0.44 0.057 2.1 0.82 0.99 0.99 0.99
Weekend 0.058 2.9 0.44 0.057 2.1 0.81 1.03 1.03 1.03
ADWF(1)0.056 2.9 0.44 0.057 2.1 0.82 1.00 1.00 1.00
Weekday 2.0% 0.97
Weekend -2.4% 1.08
Note:
FLOW MONITORING SITE A15 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.02
0.04
0.06
0.08
0.10
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
5.0
10.0
15.0
20.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 958 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.21 2.05 2.93 0.25 3.32 2.30 -1.28 0.73 0.73 0.73
1 0.18 1.98 2.57 0.22 3.15 2.24 -1.17 0.65 0.65 0.65
2 0.16 1.97 2.30 0.19 2.94 2.16 -0.97 0.61 0.61 0.61
3 0.15 1.95 2.19 0.17 2.75 2.09 -0.80 0.62 0.62 0.62
4 0.15 1.95 2.22 0.15 2.64 2.05 -0.69 0.68 0.68 0.68
5 0.16 1.97 2.41 0.15 2.61 2.04 -0.64 0.78 0.78 0.78
6 0.19 1.98 2.72 0.16 2.67 2.06 -0.69 0.90 0.90 0.90
7 0.22 2.01 3.07 0.17 2.81 2.11 -0.80 0.98 0.98 0.98
8 0.23 2.04 3.28 0.20 2.99 2.18 -0.96 1.04 1.04 1.04
9 0.25 2.05 3.46 0.22 3.15 2.23 -1.11 1.09 1.09 1.09
10 0.26 2.06 3.59 0.24 3.26 2.27 -1.20 1.12 1.12 1.12
11 0.27 2.08 3.65 0.25 3.35 2.30 -1.27 1.15 1.15 1.15
12 0.28 2.10 3.69 0.26 3.41 2.32 -1.31 1.15 1.15 1.15
13 0.28 2.10 3.68 0.27 3.45 2.34 -1.35 1.13 1.13 1.13
14 0.27 2.10 3.64 0.27 3.47 2.34 -1.37 1.13 1.13 1.13
15 0.27 2.10 3.64 0.27 3.46 2.34 -1.36 1.15 1.15 1.15
16 0.28 2.11 3.66 0.27 3.45 2.34 -1.34 1.17 1.17 1.17
17 0.28 2.12 3.71 0.27 3.46 2.34 -1.34 1.21 1.21 1.21
18 0.29 2.15 3.77 0.27 3.50 2.35 -1.35 1.21 1.21 1.21
19 0.29 2.15 3.77 0.28 3.53 2.37 -1.39 1.21 1.21 1.21
20 0.29 2.14 3.76 0.28 3.56 2.37 -1.42 1.17 1.17 1.17
21 0.28 2.12 3.71 0.28 3.56 2.37 -1.43 1.11 1.11 1.11
22 0.27 2.09 3.59 0.28 3.52 2.36 -1.43 1.01 1.01 1.01
23 0.24 2.06 3.34 0.27 3.45 2.34 -1.38 0.88 0.88 0.88
24 0.22 2.07 3.07 0.25 3.33 2.30 -1.26 0.79 0.79 0.79
25 0.19 1.99 2.73 0.22 3.18 2.25 -1.19 0.69 0.69 0.69
26 0.17 1.96 2.45 0.20 3.00 2.18 -1.04 0.64 0.64 0.64
27 0.15 1.96 2.28 0.17 2.82 2.12 -0.86 0.60 0.60 0.60
28 0.14 1.93 2.18 0.16 2.68 2.07 -0.75 0.59 0.59 0.59
29 0.14 1.92 2.16 0.15 2.60 2.03 -0.67 0.64 0.64 0.64
30 0.15 1.94 2.31 0.14 2.56 2.02 -0.61 0.74 0.74 0.74
31 0.18 1.97 2.60 0.15 2.59 2.03 -0.62 0.90 0.90 0.90
32 0.22 2.02 3.08 0.16 2.73 2.08 -0.71 1.05 1.05 1.05
33 0.25 2.05 3.52 0.19 2.95 2.16 -0.91 1.17 1.17 1.17
34 0.28 2.10 3.75 0.23 3.20 2.25 -1.10 1.26 1.26 1.26
35 0.30 2.17 3.85 0.26 3.41 2.32 -1.24 1.28 1.28 1.28
36 0.31 2.18 3.87 0.28 3.55 2.37 -1.37 1.29 1.29 1.29
37 0.31 2.20 3.86 0.29 3.62 2.39 -1.42 1.25 1.25 1.25
38 0.30 2.17 3.81 0.29 3.63 2.40 -1.45 1.22 1.22 1.22
39 0.29 2.15 3.76 0.29 3.60 2.39 -1.45 1.20 1.20 1.20
40 0.29 2.15 3.74 0.28 3.56 2.38 -1.42 1.18 1.18 1.18
41 0.28 2.13 3.70 0.28 3.53 2.36 -1.40 1.19 1.19 1.19
42 0.28 2.14 3.71 0.27 3.51 2.36 -1.37 1.19 1.19 1.19
43 0.28 2.14 3.70 0.27 3.50 2.35 -1.36 1.17 1.17 1.17
44 0.28 2.13 3.68 0.27 3.50 2.35 -1.37 1.14 1.14 1.14
45 0.27 2.11 3.63 0.27 3.48 2.35 -1.37 1.09 1.09 1.09
46 0.26 2.09 3.54 0.27 3.45 2.34 -1.36 1.02 1.02 1.02
47 0.24 2.07 3.35 0.26 3.39 2.32 -1.32 0.94 0.94 0.94
Weekday 0.238 2.1 3.26 0.234 3.2 2.26 1.00 1.00 1.00
Weekend 0.242 2.1 3.26 0.234 3.2 2.26 1.01 1.01 1.01
ADWF(1)0.239 2.1 3.26 0.234 3.2 2.26 1.00 1.00 1.00
Weekday -2.0% 1.43
Weekend -3.2% 1.45
Note:
FLOW MONITORING SITE A16 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.10
0.20
0.30
0.40
0.50
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
1.0
2.0
3.0
4.0
5.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
3.0
6.0
9.0
12.0
15.0
18.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 959 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.34 5.20 1.22 0.48 5.59 1.69 -0.39 0.70 0.70 0.70
1 0.28 4.93 1.07 0.46 5.41 1.69 -0.48 0.57 0.57 0.57
2 0.23 4.68 0.93 0.39 5.24 1.55 -0.57 0.51 0.51 0.51
3 0.20 4.55 0.86 0.29 4.53 1.43 0.02 0.49 0.49 0.49
4 0.20 4.51 0.84 0.32 4.71 1.46 -0.20 0.54 0.54 0.54
5 0.22 4.61 0.91 0.38 4.86 1.63 -0.24 0.65 0.65 0.65
6 0.26 4.85 1.04 0.25 4.10 1.38 0.75 0.81 0.81 0.81
7 0.33 5.14 1.20 0.31 4.70 1.46 0.44 0.98 0.98 0.98
8 0.39 5.40 1.34 0.39 4.98 1.62 0.42 1.13 1.13 1.13
9 0.45 5.63 1.46 0.45 5.48 1.64 0.16 1.15 1.15 1.15
10 0.46 5.68 1.48 0.48 5.63 1.69 0.05 1.15 1.15 1.15
11 0.46 5.70 1.47 0.47 5.66 1.64 0.04 1.17 1.17 1.17
12 0.47 5.73 1.47 0.46 5.52 1.67 0.21 1.16 1.16 1.16
13 0.46 5.73 1.46 0.48 5.71 1.66 0.02 1.12 1.12 1.12
14 0.45 5.68 1.43 0.48 5.59 1.69 0.09 1.08 1.08 1.08
15 0.43 5.58 1.42 0.46 5.63 1.64 -0.04 1.10 1.10 1.10
16 0.44 5.58 1.43 0.47 5.55 1.68 0.03 1.14 1.14 1.14
17 0.46 5.63 1.48 0.47 5.66 1.65 -0.03 1.21 1.21 1.21
18 0.48 5.74 1.53 0.47 5.54 1.67 0.20 1.29 1.29 1.29
19 0.52 5.84 1.59 0.47 5.70 1.65 0.14 1.32 1.32 1.32
20 0.53 5.88 1.62 0.51 5.89 1.68 -0.02 1.30 1.30 1.30
21 0.52 5.84 1.62 0.51 5.94 1.69 -0.10 1.20 1.20 1.20
22 0.48 5.70 1.54 0.51 5.90 1.68 -0.20 1.05 1.05 1.05
23 0.42 5.48 1.41 0.50 5.83 1.69 -0.34 0.85 0.85 0.85
24 0.37 5.33 1.28 0.42 5.36 1.61 -0.03 0.76 0.76 0.76
25 0.30 5.07 1.13 0.38 5.10 1.54 -0.04 0.63 0.63 0.63
26 0.25 4.83 0.99 0.47 5.49 1.70 -0.66 0.53 0.53 0.53
27 0.21 4.64 0.89 0.40 5.28 1.58 -0.64 0.48 0.48 0.48
28 0.19 4.54 0.83 0.39 5.06 1.60 -0.52 0.46 0.46 0.46
29 0.19 4.49 0.81 0.20 3.72 1.30 0.77 0.50 0.50 0.50
30 0.20 4.56 0.85 0.35 4.80 1.55 -0.25 0.57 0.57 0.57
31 0.23 4.71 0.95 0.23 4.00 1.33 0.71 0.78 0.78 0.78
32 0.31 5.09 1.15 0.42 5.24 1.62 -0.15 1.08 1.08 1.08
33 0.43 5.54 1.43 0.47 5.48 1.70 0.06 1.31 1.31 1.31
34 0.52 5.86 1.61 0.41 5.34 1.58 0.52 1.42 1.42 1.42
35 0.57 6.01 1.69 0.45 5.55 1.63 0.45 1.44 1.44 1.44
36 0.58 6.06 1.70 0.51 5.91 1.68 0.14 1.42 1.42 1.42
37 0.57 6.07 1.67 0.52 5.94 1.69 0.13 1.37 1.37 1.37
38 0.55 5.99 1.64 0.52 5.95 1.70 0.04 1.30 1.30 1.30
39 0.52 5.87 1.59 0.51 5.91 1.68 -0.04 1.25 1.25 1.25
40 0.50 5.79 1.56 0.49 5.78 1.66 0.00 1.24 1.24 1.24
41 0.50 5.78 1.56 0.49 5.78 1.67 -0.01 1.26 1.26 1.26
42 0.51 5.82 1.57 0.50 5.80 1.70 0.02 1.29 1.29 1.29
43 0.52 5.86 1.58 0.48 5.66 1.68 0.20 1.29 1.29 1.29
44 0.52 5.88 1.58 0.47 5.69 1.65 0.18 1.26 1.26 1.26
45 0.50 5.83 1.56 0.49 5.80 1.67 0.03 1.19 1.19 1.19
46 0.48 5.75 1.50 0.50 5.80 1.70 -0.05 1.06 1.06 1.06
47 0.42 5.57 1.39 0.44 5.46 1.62 0.11 0.92 0.92 0.92
Weekday 0.395 5.4 1.33 0.436 5.4 1.62 0.99 0.99 0.99
Weekend 0.414 5.5 1.35 0.438 5.4 1.62 1.03 1.03 1.03
ADWF(1)0.400 5.4 1.33 0.437 5.4 1.62 1.00 1.00 1.00
Weekday 10.3%0.75
Weekend 5.9% 0.77
Note:
FLOW MONITORING SITE Y-1 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.20
0.40
0.60
0.80
1.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
5.0
10.0
15.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 960 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.86 2.80 8.39 1.00 7.24 5.53 -4.44 0.72 0.72 0.72
1 0.74 2.61 7.96 0.85 6.83 5.28 -4.22 0.63 0.63 0.63
2 0.65 2.45 7.59 0.75 6.30 5.10 -3.85 0.59 0.59 0.59
3 0.61 2.38 7.43 0.92 6.36 5.49 -3.98 0.58 0.58 0.58
4 0.60 2.36 7.43 0.62 5.72 4.84 -3.36 0.63 0.63 0.63
5 0.65 2.45 7.67 0.82 5.99 5.30 -3.54 0.74 0.74 0.74
6 0.76 2.63 8.09 0.61 5.68 4.82 -3.05 0.84 0.84 0.84
7 0.87 2.79 8.52 0.71 6.12 5.02 -3.32 0.96 0.96 0.96
8 0.99 2.97 8.89 0.81 6.87 5.20 -3.90 1.07 1.07 1.07
9 1.10 3.13 9.19 1.06 7.65 5.61 -4.52 1.12 1.12 1.12
10 1.15 3.20 9.32 1.03 7.39 5.58 -4.19 1.13 1.13 1.13
11 1.16 3.22 9.35 1.33 7.72 6.01 -4.51 1.15 1.15 1.15
12 1.19 3.25 9.39 1.09 7.60 5.67 -4.35 1.14 1.14 1.14
13 1.17 3.22 9.36 1.12 7.75 5.71 -4.53 1.12 1.12 1.12
14 1.16 3.20 9.32 1.15 8.11 5.72 -4.91 1.11 1.11 1.11
15 1.14 3.18 9.29 1.10 7.65 5.67 -4.46 1.12 1.12 1.12
16 1.16 3.21 9.33 1.09 7.59 5.66 -4.38 1.15 1.15 1.15
17 1.18 3.24 9.39 1.17 8.21 5.75 -4.97 1.21 1.21 1.21
18 1.24 3.33 9.52 1.12 7.68 5.70 -4.35 1.27 1.27 1.27
19 1.31 3.42 9.64 1.16 7.88 5.76 -4.46 1.26 1.26 1.26
20 1.30 3.40 9.62 1.50 8.58 6.21 -5.18 1.24 1.24 1.24
21 1.28 3.38 9.56 1.23 8.29 5.84 -4.90 1.14 1.14 1.14
22 1.18 3.25 9.32 1.20 8.07 5.81 -4.82 1.01 1.01 1.01
23 1.04 3.05 8.94 1.21 8.31 5.81 -5.25 0.84 0.84 0.84
24 0.92 2.88 8.62 0.98 7.27 5.49 -4.39 0.77 0.77 0.77
25 0.79 2.68 8.18 0.87 6.74 5.29 -4.06 0.68 0.68 0.68
26 0.70 2.53 7.85 0.76 6.63 5.10 -4.09 0.60 0.60 0.60
27 0.62 2.39 7.53 0.68 5.96 4.98 -3.57 0.57 0.57 0.57
28 0.59 2.33 7.40 0.60 5.55 4.80 -3.21 0.56 0.56 0.56
29 0.58 2.32 7.36 0.53 5.32 4.64 -2.99 0.58 0.58 0.58
30 0.60 2.36 7.49 0.83 5.59 5.38 -3.23 0.66 0.66 0.66
31 0.68 2.50 7.84 0.56 5.45 4.70 -2.95 0.81 0.81 0.81
32 0.83 2.73 8.43 0.81 6.35 5.22 -3.62 1.06 1.06 1.06
33 1.09 3.11 9.18 0.76 6.34 5.13 -3.23 1.25 1.25 1.25
34 1.29 3.40 9.65 0.96 7.18 5.47 -3.78 1.37 1.37 1.37
35 1.41 3.56 9.86 1.14 7.99 5.72 -4.43 1.37 1.37 1.37
36 1.41 3.57 9.83 1.25 8.18 5.88 -4.62 1.38 1.38 1.38
37 1.43 3.59 9.83 1.51 8.84 6.20 -5.25 1.32 1.32 1.32
38 1.36 3.50 9.73 1.28 8.28 5.91 -4.78 1.27 1.27 1.27
39 1.31 3.44 9.61 1.24 8.16 5.87 -4.72 1.22 1.22 1.22
40 1.26 3.36 9.51 1.31 8.02 5.93 -4.65 1.21 1.21 1.21
41 1.25 3.35 9.49 1.16 7.88 5.76 -4.53 1.23 1.23 1.23
42 1.27 3.38 9.55 1.16 7.83 5.76 -4.45 1.26 1.26 1.26
43 1.30 3.42 9.63 1.16 7.82 5.75 -4.40 1.23 1.23 1.23
44 1.27 3.38 9.57 1.16 7.88 5.76 -4.50 1.19 1.19 1.19
45 1.23 3.31 9.48 1.16 7.88 5.76 -4.56 1.13 1.13 1.13
46 1.16 3.23 9.31 1.13 7.76 5.72 -4.53 1.01 1.01 1.01
47 1.04 3.05 8.99 1.09 7.47 5.64 -4.42 0.89 0.89 0.89
Weekday 1.021 3.0 8.85 1.027 7.3 5.55 0.99 0.99 0.99
Weekend 1.058 3.1 8.91 1.004 7.2 5.49 1.03 1.03 1.03
ADWF(1)1.031 3.0 8.87 1.021 7.3 5.53 1.00 1.00 1.00
Weekday 0.6%5.25
Weekend -5.1%5.25
Note:
FLOW MONITORING SITE Y-2 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.50
1.00
1.50
2.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 961 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.58 2.51 4.99 0.64 5.26 5.30 -2.74 0.81 0.81 0.81
1 0.53 2.40 4.85 0.59 5.06 5.18 -2.66 0.74 0.74 0.74
2 0.48 2.30 4.71 0.53 4.79 5.00 -2.49 0.72 0.72 0.72
3 0.48 2.27 4.70 0.49 4.64 4.91 -2.38 0.71 0.71 0.71
4 0.47 2.25 4.70 0.47 4.55 4.84 -2.30 0.74 0.74 0.74
5 0.49 2.27 4.82 0.46 4.50 4.81 -2.23 0.80 0.80 0.80
6 0.53 2.37 4.96 0.48 4.57 4.85 -2.20 0.87 0.87 0.87
7 0.57 2.47 5.08 0.51 4.73 4.96 -2.26 0.95 0.95 0.95
8 0.62 2.59 5.20 0.57 4.98 5.12 -2.39 1.01 1.01 1.01
9 0.66 2.67 5.28 0.60 5.10 5.20 -2.43 1.07 1.07 1.07
10 0.70 2.75 5.37 0.64 5.24 5.29 -2.49 1.11 1.11 1.11
11 0.73 2.82 5.40 0.68 5.41 5.39 -2.59 1.14 1.14 1.14
12 0.75 2.86 5.42 0.71 5.52 5.46 -2.66 1.15 1.15 1.15
13 0.76 2.88 5.44 0.72 5.57 5.49 -2.69 1.14 1.14 1.14
14 0.75 2.86 5.40 0.73 5.59 5.50 -2.73 1.13 1.13 1.13
15 0.74 2.85 5.39 0.74 5.62 5.52 -2.76 1.14 1.14 1.14
16 0.75 2.86 5.40 0.72 5.56 5.48 -2.70 1.15 1.15 1.15
17 0.76 2.89 5.41 0.73 5.60 5.51 -2.72 1.17 1.17 1.17
18 0.77 2.91 5.42 0.74 5.63 5.52 -2.72 1.18 1.18 1.18
19 0.78 2.93 5.44 0.74 5.64 5.53 -2.71 1.16 1.16 1.16
20 0.76 2.91 5.41 0.76 5.70 5.57 -2.79 1.15 1.15 1.15
21 0.75 2.88 5.38 0.75 5.69 5.56 -2.80 1.08 1.08 1.08
22 0.71 2.80 5.30 0.73 5.58 5.50 -2.78 0.99 0.99 0.99
23 0.65 2.66 5.17 0.70 5.50 5.45 -2.83 0.88 0.88 0.88
24 0.61 2.57 5.14 0.66 5.32 5.33 -2.75 0.83 0.83 0.83
25 0.55 2.43 4.97 0.61 5.15 5.23 -2.72 0.78 0.78 0.78
26 0.51 2.34 4.88 0.55 4.88 5.06 -2.55 0.71 0.71 0.71
27 0.47 2.24 4.74 0.52 4.78 4.99 -2.53 0.69 0.69 0.69
28 0.45 2.20 4.70 0.49 4.63 4.89 -2.43 0.68 0.68 0.68
29 0.45 2.19 4.70 0.46 4.50 4.80 -2.31 0.70 0.70 0.70
30 0.46 2.21 4.77 0.44 4.39 4.74 -2.19 0.75 0.75 0.75
31 0.49 2.29 4.92 0.46 4.48 4.79 -2.19 0.85 0.85 0.85
32 0.56 2.44 5.09 0.49 4.63 4.90 -2.20 1.00 1.00 1.00
33 0.66 2.65 5.32 0.54 4.85 5.04 -2.20 1.11 1.11 1.11
34 0.73 2.81 5.43 0.63 5.22 5.27 -2.41 1.19 1.19 1.19
35 0.78 2.92 5.51 0.69 5.46 5.42 -2.54 1.20 1.20 1.20
36 0.79 2.95 5.50 0.75 5.68 5.55 -2.73 1.24 1.24 1.24
37 0.81 3.00 5.52 0.78 5.76 5.60 -2.76 1.20 1.20 1.20
38 0.79 2.95 5.46 0.78 5.78 5.62 -2.83 1.18 1.18 1.18
39 0.77 2.92 5.44 0.77 5.74 5.59 -2.81 1.17 1.17 1.17
40 0.77 2.91 5.43 0.75 5.66 5.55 -2.75 1.16 1.16 1.16
41 0.76 2.89 5.42 0.75 5.65 5.54 -2.76 1.16 1.16 1.16
42 0.76 2.89 5.44 0.75 5.66 5.55 -2.77 1.16 1.16 1.16
43 0.76 2.88 5.44 0.74 5.63 5.52 -2.75 1.15 1.15 1.15
44 0.75 2.88 5.43 0.74 5.64 5.53 -2.76 1.10 1.10 1.10
45 0.72 2.82 5.37 0.74 5.64 5.53 -2.82 1.06 1.06 1.06
46 0.70 2.76 5.30 0.71 5.52 5.46 -2.76 0.99 0.99 0.99
47 0.65 2.66 5.18 0.69 5.45 5.42 -2.78 0.93 0.93 0.93
Weekday 0.657 2.7 5.19 0.643 5.3 5.29 1.00 1.00 1.00
Weekend 0.656 2.7 5.21 0.645 5.3 5.29 1.00 1.00 1.00
ADWF(1)0.657 2.7 5.20 0.644 5.3 5.29 1.00 1.00 1.00
Weekday -2.1% 2.83
Weekend -1.6% 2.83
Note:
FLOW MONITORING SITE Y-3 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.20
0.40
0.60
0.80
1.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
2.0
4.0
6.0
8.0
10.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
5.0
10.0
15.0
20.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 962 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 0.12 0.12 1.17 0.21 3.78 0.79 -3.66 0.65 0.65 0.65
1 0.09 0.09 1.05 0.19 3.49 0.81 -3.40 0.52 0.52 0.52
2 0.07 0.07 0.95 0.17 3.04 0.94 -2.96 0.44 0.44 0.44
3 0.06 0.06 0.89 0.16 3.18 0.76 -3.12 0.42 0.42 0.42
4 0.06 0.06 0.87 0.13 2.92 0.79 -2.86 0.48 0.48 0.48
5 0.07 0.07 0.93 0.13 2.94 0.78 -2.87 0.63 0.63 0.63
6 0.09 0.09 1.05 0.17 3.07 1.16 -2.98 0.80 0.80 0.80
7 0.11 0.11 1.17 0.12 3.14 0.74 -3.03 0.94 0.94 0.94
8 0.13 0.13 1.25 0.16 3.13 0.91 -3.00 1.05 1.05 1.05
9 0.15 0.15 1.30 0.19 3.18 0.97 -3.03 1.12 1.12 1.12
10 0.16 0.16 1.34 0.07 3.59 0.28 -3.43 1.15 1.15 1.15
11 0.16 0.16 1.35 0.17 3.13 0.90 -2.97 1.18 1.18 1.18
12 0.17 0.17 1.37 0.07 3.28 0.34 -3.11 1.17 1.17 1.17
13 0.17 0.17 1.36 0.19 3.76 0.71 -3.59 1.15 1.15 1.15
14 0.16 0.16 1.35 0.18 3.17 0.86 -3.00 1.13 1.13 1.13
15 0.16 0.16 1.35 0.06 3.26 0.29 -3.10 1.17 1.17 1.17
16 0.17 0.17 1.37 0.18 3.85 0.65 -3.69 1.22 1.22 1.22
17 0.17 0.17 1.39 0.18 3.19 0.87 -3.02 1.30 1.30 1.30
18 0.19 0.19 1.42 0.06 3.79 0.21 -3.61 1.38 1.38 1.38
19 0.20 0.20 1.45 0.18 3.59 0.75 -3.39 1.40 1.40 1.40
20 0.20 0.20 1.45 0.20 3.36 0.95 -3.16 1.34 1.34 1.34
21 0.19 0.19 1.43 0.07 3.70 0.29 -3.51 1.20 1.20 1.20
22 0.17 0.17 1.37 0.21 3.95 0.78 -3.78 1.03 1.03 1.03
23 0.15 0.15 1.29 0.21 3.46 0.94 -3.31 0.82 0.82 0.82
24 0.12 0.12 1.20 0.21 3.79 0.79 -3.67 0.71 0.71 0.71
25 0.10 0.10 1.10 0.21 3.64 0.84 -3.53 0.57 0.57 0.57
26 0.08 0.08 1.00 0.15 3.11 0.85 -3.03 0.48 0.48 0.48
27 0.07 0.07 0.92 0.12 3.05 0.77 -2.98 0.42 0.42 0.42
28 0.06 0.06 0.87 0.09 3.67 0.35 -3.61 0.41 0.41 0.41
29 0.06 0.06 0.87 0.10 3.43 0.42 -3.37 0.44 0.44 0.44
30 0.06 0.06 0.90 0.14 3.17 0.68 -3.10 0.54 0.54 0.54
31 0.08 0.08 0.98 0.16 3.00 0.84 -2.92 0.77 0.77 0.77
32 0.11 0.11 1.15 0.06 3.29 0.31 -3.18 1.07 1.07 1.07
33 0.15 0.15 1.32 0.19 3.25 0.87 -3.10 1.34 1.34 1.34
34 0.19 0.19 1.44 0.20 3.26 0.93 -3.07 1.48 1.48 1.48
35 0.21 0.21 1.48 0.17 3.32 0.79 -3.11 1.50 1.50 1.50
36 0.21 0.21 1.49 0.21 3.82 0.79 -3.60 1.48 1.48 1.48
37 0.21 0.21 1.48 0.19 3.23 0.94 -3.02 1.41 1.41 1.41
38 0.20 0.20 1.46 0.20 3.88 0.74 -3.67 1.32 1.32 1.32
39 0.19 0.19 1.43 0.18 3.14 0.92 -2.96 1.30 1.30 1.30
40 0.19 0.19 1.42 0.05 3.73 0.17 -3.55 1.30 1.30 1.30
41 0.19 0.19 1.42 0.19 3.29 0.85 -3.10 1.33 1.33 1.33
42 0.19 0.19 1.44 0.15 3.06 0.80 -2.87 1.33 1.33 1.33
43 0.19 0.19 1.43 0.15 4.01 0.53 -3.82 1.30 1.30 1.30
44 0.19 0.19 1.42 0.17 3.32 0.81 -3.14 1.25 1.25 1.25
45 0.18 0.18 1.40 0.19 3.35 0.90 -3.17 1.15 1.15 1.15
46 0.16 0.16 1.35 0.13 3.37 0.64 -3.21 1.02 1.02 1.02
47 0.15 0.15 1.28 0.09 3.52 0.43 -3.37 0.87 0.87 0.87
Weekday 0.141 0.1 1.25 0.153 3.4 0.73 0.99 0.99 0.99
Weekend 0.148 0.1 1.26 0.154 3.4 0.71 1.03 1.03 1.03
ADWF(1)0.143 0.1 1.25 0.153 3.4 0.72 1.00 1.00 1.00
Weekday 8.1% 3.78
Weekend 4.0% 3.82
Note:
FLOW MONITORING SITE Y-4 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.00
3.00
6.00
9.00
12.00
15.00
18.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.5
1.0
1.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
2.0
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 963 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 3.72 10.21 3.14 3.80 13.08 1.89 -2.87 1.12 1.12 1.12
1 3.66 10.15 3.12 3.78 13.05 1.89 -2.90 1.10 1.10 1.10
2 3.59 10.07 3.10 3.72 12.94 1.88 -2.88 1.12 1.12 1.12
3 3.65 10.15 3.11 3.62 12.76 1.85 -2.61 1.15 1.15 1.15
4 3.76 10.27 3.15 3.52 12.58 1.84 -2.31 1.20 1.20 1.20
5 3.93 10.51 3.21 3.49 12.52 1.83 -2.01 1.23 1.23 1.23
6 4.01 10.63 3.24 3.55 12.62 1.84 -1.99 1.22 1.22 1.22
7 3.97 10.58 3.23 3.64 12.79 1.86 -2.21 1.16 1.16 1.16
8 3.77 10.35 3.17 3.71 12.92 1.87 -2.57 1.05 1.05 1.05
9 3.44 9.94 3.05 3.74 12.99 1.88 -3.05 0.93 0.93 0.93
10 3.05 9.41 2.92 3.71 12.94 1.87 -3.53 0.82 0.82 0.82
11 2.67 8.85 2.78 3.58 12.71 1.85 -3.86 0.72 0.72 0.72
12 2.36 8.37 2.67 3.34 12.26 1.79 -3.89 0.67 0.67 0.67
13 2.18 8.06 2.60 3.06 11.74 1.73 -3.68 0.65 0.65 0.65
14 2.12 7.96 2.58 2.87 11.35 1.69 -3.39 0.66 0.66 0.66
15 2.17 8.02 2.60 2.75 11.11 1.66 -3.08 0.72 0.72 0.72
16 2.36 8.36 2.68 2.69 10.97 1.65 -2.61 0.84 0.84 0.84
17 2.73 8.92 2.83 2.68 10.96 1.65 -2.04 0.95 0.95 0.95
18 3.11 9.46 2.96 2.78 11.15 1.67 -1.69 1.04 1.04 1.04
19 3.40 10.03 3.03 2.97 11.52 1.72 -1.49 1.09 1.09 1.09
20 3.57 10.28 3.09 3.20 11.98 1.77 -1.70 1.12 1.12 1.12
21 3.67 10.31 3.13 3.46 12.47 1.82 -2.16 1.13 1.13 1.13
22 3.68 10.16 3.14 3.66 12.84 1.86 -2.69 1.14 1.14 1.14
23 3.72 10.20 3.15 3.77 13.04 1.88 -2.83 1.14 1.14 1.14
24 3.99 10.51 3.27 3.81 13.10 1.89 -2.59 1.20 1.20 1.20
25 3.90 10.39 3.25 3.88 13.23 1.91 -2.84 1.17 1.17 1.17
26 3.83 10.30 3.23 3.89 13.24 1.91 -2.94 1.17 1.17 1.17
27 3.82 10.30 3.22 3.79 13.07 1.89 -2.78 1.18 1.18 1.18
28 3.84 10.32 3.23 3.70 12.91 1.87 -2.59 1.19 1.19 1.19
29 3.88 10.37 3.24 3.64 12.79 1.86 -2.42 1.19 1.19 1.19
30 3.88 10.36 3.24 3.60 12.72 1.85 -2.36 1.15 1.15 1.15
31 3.74 10.20 3.20 3.59 12.70 1.85 -2.50 1.10 1.10 1.10
32 3.58 10.00 3.15 3.57 12.67 1.85 -2.67 1.05 1.05 1.05
33 3.41 9.79 3.09 3.54 12.62 1.84 -2.82 0.96 0.96 0.96
34 3.13 9.46 2.98 3.50 12.55 1.83 -3.09 0.87 0.87 0.87
35 2.83 9.04 2.87 3.43 12.42 1.81 -3.38 0.78 0.78 0.78
36 2.53 8.59 2.76 3.34 12.25 1.79 -3.67 0.70 0.70 0.70
37 2.29 8.20 2.66 3.18 11.96 1.76 -3.76 0.65 0.65 0.65
38 2.12 7.92 2.59 3.02 11.65 1.73 -3.73 0.62 0.62 0.62
39 2.03 7.77 2.55 2.88 11.37 1.69 -3.60 0.61 0.61 0.61
40 1.99 7.72 2.51 2.77 11.14 1.67 -3.42 0.65 0.65 0.65
41 2.11 7.97 2.56 2.66 10.92 1.64 -2.95 0.75 0.75 0.75
42 2.45 8.49 2.71 2.62 10.82 1.63 -2.33 0.93 0.93 0.93
43 3.04 9.33 2.95 2.65 10.89 1.64 -1.56 1.11 1.11 1.11
44 3.64 10.12 3.15 2.84 11.27 1.69 -1.15 1.24 1.24 1.24
45 4.05 10.61 3.28 3.16 11.90 1.76 -1.29 1.28 1.28 1.28
46 4.17 10.77 3.31 3.58 12.67 1.85 -1.90 1.26 1.26 1.26
47 4.12 10.73 3.29 3.95 13.35 1.92 -2.61 1.22 1.22 1.22
Weekday 3.262 9.6 2.99 3.379 12.3 1.80 1.00 1.00 1.00
Weekend 3.266 9.6 3.01 3.358 12.3 1.80 1.00 1.00 1.00
ADWF(1)3.263 9.6 2.99 3.373 12.3 1.80 1.00 1.00 1.00
Weekday 3.6% 3.89
Weekend 2.8% 3.76
Note:
FLOW MONITORING SITE WINT003 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
1.00
2.00
3.00
4.00
5.00
6.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
1.0
2.0
3.0
4.0
5.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
6.0
12.0
18.0
24.0
30.0
36.0
42.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 964 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 2.46 11.47 2.03 3.23 13.65 2.24 -2.18 0.77 0.77 0.77
1 2.11 10.69 1.89 2.93 12.98 2.18 -2.29 0.66 0.66 0.66
2 1.79 10.02 1.75 2.64 12.33 2.11 -2.31 0.59 0.59 0.59
3 1.61 9.62 1.65 2.34 11.60 2.03 -1.98 0.56 0.56 0.56
4 1.54 9.45 1.63 2.10 10.98 1.97 -1.53 0.59 0.59 0.59
5 1.62 9.59 1.68 1.94 10.56 1.93 -0.98 0.68 0.68 0.68
6 1.85 10.09 1.81 1.91 10.46 1.91 -0.38 0.81 0.81 0.81
7 2.22 10.90 1.97 2.03 10.80 1.95 0.10 0.94 0.94 0.94
8 2.56 11.66 2.08 2.28 11.45 2.03 0.21 1.02 1.02 1.02
9 2.78 12.32 2.14 2.56 12.13 2.10 0.20 1.08 1.08 1.08
10 2.96 12.74 2.18 2.88 12.85 2.17 -0.12 1.12 1.12 1.12
11 3.05 12.94 2.20 3.15 13.45 2.23 -0.51 1.15 1.15 1.15
12 3.13 13.09 2.23 3.32 13.83 2.27 -0.74 1.16 1.16 1.16
13 3.15 13.13 2.23 3.42 14.04 2.29 -0.91 1.15 1.15 1.15
14 3.14 13.05 2.23 3.47 14.14 2.30 -1.09 1.13 1.13 1.13
15 3.09 12.94 2.22 3.46 14.14 2.29 -1.20 1.14 1.14 1.14
16 3.11 12.94 2.24 3.44 14.09 2.29 -1.14 1.16 1.16 1.16
17 3.16 12.99 2.26 3.42 14.05 2.29 -1.07 1.21 1.21 1.21
18 3.30 13.26 2.30 3.43 14.08 2.29 -0.82 1.25 1.25 1.25
19 3.42 13.55 2.31 3.49 14.18 2.30 -0.63 1.25 1.25 1.25
20 3.42 13.58 2.30 3.56 14.33 2.31 -0.74 1.21 1.21 1.21
21 3.31 13.38 2.27 3.61 14.44 2.32 -1.06 1.13 1.13 1.13
22 3.09 12.91 2.21 3.59 14.39 2.32 -1.48 1.02 1.02 1.02
23 2.79 12.23 2.14 3.46 14.13 2.29 -1.89 0.90 0.90 0.90
24 2.55 11.46 2.06 3.24 13.66 2.25 -2.21 0.81 0.81 0.81
25 2.21 10.77 1.94 2.96 13.06 2.19 -2.29 0.70 0.70 0.70
26 1.92 10.16 1.80 2.69 12.44 2.12 -2.28 0.62 0.62 0.62
27 1.70 9.79 1.68 2.42 11.79 2.06 -2.00 0.57 0.57 0.57
28 1.55 9.45 1.61 2.18 11.18 1.99 -1.73 0.55 0.55 0.55
29 1.49 9.29 1.58 1.96 10.61 1.93 -1.31 0.56 0.56 0.56
30 1.52 9.36 1.61 1.85 10.32 1.90 -0.96 0.63 0.63 0.63
31 1.72 9.77 1.73 1.81 10.19 1.88 -0.42 0.79 0.79 0.79
32 2.14 10.70 1.93 1.89 10.41 1.91 0.28 0.99 0.99 0.99
33 2.71 11.92 2.13 2.11 10.99 1.98 0.93 1.18 1.18 1.18
34 3.23 13.14 2.26 2.49 11.95 2.08 1.19 1.29 1.29 1.29
35 3.53 13.91 2.30 2.99 13.10 2.20 0.82 1.33 1.33 1.33
36 3.64 14.24 2.30 3.46 14.11 2.30 0.13 1.34 1.34 1.34
37 3.66 14.29 2.31 3.73 14.68 2.35 -0.40 1.32 1.32 1.32
38 3.60 14.13 2.30 3.83 14.88 2.37 -0.74 1.31 1.31 1.31
39 3.57 13.85 2.29 3.81 14.86 2.36 -1.01 1.27 1.27 1.27
40 3.47 13.59 2.28 3.74 14.71 2.35 -1.12 1.27 1.27 1.27
41 3.46 13.48 2.30 3.63 14.49 2.33 -1.01 1.28 1.28 1.28
42 3.49 13.52 2.32 3.55 14.32 2.31 -0.80 1.29 1.29 1.29
43 3.52 13.58 2.33 3.51 14.24 2.30 -0.66 1.28 1.28 1.28
44 3.49 13.53 2.31 3.52 14.25 2.31 -0.73 1.24 1.24 1.24
45 3.38 13.27 2.30 3.52 14.25 2.31 -0.98 1.18 1.18 1.18
46 3.21 12.93 2.25 3.46 14.14 2.29 -1.21 1.07 1.07 1.07
47 2.91 12.33 2.17 3.34 13.89 2.27 -1.56 0.93 0.93 0.93
Weekday 2.694 12.0 2.08 2.985 13.0 2.18 0.99 0.99 0.99
Weekend 2.819 12.2 2.09 2.987 13.0 2.18 1.03 1.03 1.03
ADWF(1)2.730 12.1 2.08 2.985 13.0 2.18 1.00 1.00 1.00
Weekday 10.8%2.31
Weekend 5.9% 2.29
Note:
FLOW MONITORING SITE MSTTR02 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
WeekdayWeekendAverage
% Error
Measured Data Modeled Data Diurnal
0.00
1.00
2.00
3.00
4.00
5.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
1.0
2.0
3.0
4.0
5.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
6.0
12.0
18.0
24.0
30.0
36.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.5
1.0
1.5
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 965 of 1163
Flow Level Velocity Flow Level Velocity Level Diff Initial Modified Calibrated
Hour (mgd) (in) (ft/s) (mgd) (in) (ft/s) (in) Curve Curve Diurnal
0 8.50 16.35 2.71 9.14 19.87 2.89 -3.52 1.07 1.07 1.07
1 8.36 16.20 2.68 8.90 19.58 2.88 -3.38 1.03 1.03 1.03
2 8.05 15.87 2.63 8.52 19.12 2.87 -3.25 1.01 1.01 1.01
3 7.90 15.68 2.60 8.09 18.57 2.86 -2.89 0.99 0.99 0.99
4 7.76 15.51 2.57 7.65 17.98 2.84 -2.48 0.98 0.98 0.98
5 7.69 15.42 2.56 7.29 17.49 2.84 -2.07 0.97 0.97 0.97
6 7.60 15.33 2.55 7.11 17.21 2.84 -1.88 1.01 1.01 1.01
7 7.91 15.64 2.60 7.19 17.27 2.85 -1.63 1.07 1.07 1.07
8 8.33 16.08 2.66 7.48 17.65 2.86 -1.57 1.12 1.12 1.12
9 8.76 16.52 2.72 7.91 18.21 2.88 -1.69 1.14 1.14 1.14
10 8.89 16.68 2.74 8.34 18.78 2.89 -2.10 1.10 1.10 1.10
11 8.63 16.46 2.72 8.72 19.27 2.89 -2.81 1.06 1.06 1.06
12 8.29 16.14 2.68 8.88 19.52 2.89 -3.38 1.00 1.00 1.00
13 7.81 15.68 2.62 8.79 19.43 2.88 -3.75 0.94 0.94 0.94
14 7.35 15.23 2.57 8.57 19.15 2.87 -3.93 0.88 0.88 0.88
15 6.90 14.78 2.51 8.35 18.87 2.87 -4.09 0.84 0.84 0.84
16 6.53 14.40 2.46 8.14 18.61 2.86 -4.20 0.83 0.83 0.83
17 6.49 14.37 2.45 7.99 18.39 2.86 -4.02 0.84 0.84 0.84
18 6.55 14.45 2.47 7.93 18.30 2.86 -3.85 0.89 0.89 0.89
19 6.91 14.83 2.52 8.03 18.41 2.87 -3.58 0.95 0.95 0.95
20 7.42 15.34 2.58 8.29 18.73 2.88 -3.39 1.02 1.02 1.02
21 7.96 15.86 2.65 8.65 19.17 2.90 -3.31 1.07 1.07 1.07
22 8.40 16.27 2.70 9.00 19.62 2.90 -3.36 1.10 1.10 1.10
23 8.62 16.46 2.72 9.19 19.89 2.90 -3.43 1.09 1.09 1.09
24 8.91 16.69 2.75 9.15 19.87 2.89 -3.18 1.15 1.15 1.15
25 8.97 16.71 2.74 8.97 19.66 2.89 -2.95 1.12 1.12 1.12
26 8.76 16.51 2.71 8.74 19.38 2.88 -2.87 1.08 1.08 1.08
27 8.47 16.21 2.67 8.44 19.01 2.87 -2.80 1.04 1.04 1.04
28 8.16 15.90 2.62 8.02 18.48 2.85 -2.58 1.01 1.01 1.01
29 7.86 15.59 2.58 7.63 17.95 2.84 -2.36 0.99 0.99 0.99
30 7.73 15.44 2.57 7.31 17.51 2.84 -2.06 0.98 0.98 0.98
31 7.64 15.35 2.56 7.14 17.25 2.84 -1.91 0.98 0.98 0.98
32 7.68 15.39 2.57 7.11 17.18 2.84 -1.79 1.00 1.00 1.00
33 7.83 15.60 2.60 7.22 17.32 2.85 -1.72 1.02 1.02 1.02
34 7.98 15.80 2.64 7.54 17.71 2.87 -1.92 1.06 1.06 1.06
35 8.28 16.13 2.69 8.01 18.33 2.88 -2.20 1.06 1.06 1.06
36 8.29 16.12 2.69 8.55 19.03 2.90 -2.90 1.03 1.03 1.03
37 8.05 15.87 2.65 8.94 19.56 2.90 -3.69 0.98 0.98 0.98
38 7.62 15.45 2.60 9.03 19.71 2.89 -4.26 0.92 0.92 0.92
39 7.21 15.05 2.54 8.91 19.58 2.89 -4.53 0.88 0.88 0.88
40 6.85 14.70 2.50 8.67 19.29 2.88 -4.60 0.84 0.84 0.84
41 6.60 14.45 2.47 8.40 18.95 2.87 -4.50 0.83 0.83 0.83
42 6.49 14.38 2.46 8.13 18.60 2.86 -4.22 0.85 0.85 0.85
43 6.61 14.52 2.48 7.97 18.36 2.86 -3.85 0.90 0.90 0.90
44 7.03 14.95 2.54 7.98 18.35 2.87 -3.40 0.97 0.97 0.97
45 7.60 15.50 2.61 8.20 18.61 2.88 -3.12 1.04 1.04 1.04
46 8.15 16.03 2.68 8.57 19.07 2.89 -3.05 1.08 1.08 1.08
47 8.43 16.28 2.71 8.98 19.58 2.90 -3.30 1.14 1.14 1.14
Weekday 7.817 15.6 2.61 8.256 18.7 2.87 1.00 1.00 1.00
Weekend 7.800 15.6 2.61 8.233 18.7 2.87 1.00 1.00 1.00
ADWF(1)7.812 15.6 2.61 8.250 18.7 2.87 1.00 1.00 1.00
Weekday 5.6%4.20
Weekend 5.6%4.60
Note:
Measured Data Modeled Data Diurnal
WeekdayWeekendAverage
% Error
FLOW MONITORING SITE AUBRN53 DRY WEATHER FLOW CALIBRATION
City of Auburn
Collection System Planning Project
0.00
4.00
8.00
12.00
16.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Flow (mgd)Hour
Flow Calibration
Measured Flow Modeled Flow
Weekday Weekend
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Velocity (ft/s)Hour
Velocity Calibration
Measured Velocity Modeled Velocity
Weekday Weekend
0.0
12.0
24.0
36.0
48.0
60.0
72.0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48Level (in)Hour
Level Calibration
Measured Level Modeled Level
Weekday Weekend
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Hourly MultiplierHour
Weekday Diurnal Pattern
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47Hourly MultiplierHour
Weekend Diurnal Pattern
Page 966 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
ATTACHMENT 1F RDII PARAMETERS
Page 967 of 1163
Connected
Pervious
Total
Connecte
d
Total
Connecte
d
Impervio
us
Time of
Concent
ration
Initial
Loss
(acres) (acres) (%)(%) (min) (in)
A1 223.6 1.2 5.8 7.0 3.2 A1 0.55 7 0.9 0.0020
A1c 151.1 0.5 2.4 2.9 1.9 A1c 0.3 7 0.9 0.0020
A1d 52.5 0.3 4.2 4.5 8.6 A1d 0.6 7 0.9 0.0020
A3 83.0 1.4 31.5 33.0 39.7 A3 1.7 7 0.9 0.0020
A4 113.1 0.5 3.8 4.4 3.9 A4 0.47 7 0.9 0.0020
A6 97.6 0.6 5.4 6.0 6.1 A6 0.6 7 0.9 0.0020
A7 109.1 3.3 17.4 20.7 19.0 A7 3 7 0.9 0.0020
A9 52.5 1.5 4.9 6.4 12.1 A9 2.8 7 0.9 0.0020
A10 115.3 3.8 5.8 9.6 8.3 A10 3.3 7 0.9 0.0020
A11 16.7 0.0 0.0 0.0 0.2 A11 0.1 7 0.9 0.0020
A12 21.4 0.2 0.0 0.2 0.9 A12 0.8 3 0.9 0.0020
A13 63.3 0.2 0.3 0.5 0.8 A13 0.3 7 0.9 0.0020
A14 102.2 1.5 1.0 2.6 2.5 A14 1.5 7 0.9 0.0020
A15 72.3 0.3 0.4 0.7 1.0 A15 0.4 7 0.9 0.0020
A16 285.4 1.7 2.0 3.7 1.3 A16 0.6 7 0.9 0.0020
AUB Y-1 93.7 0.2 0.7 0.8 0.9 AUB Y-1 0.2 7 0.9 0.0020
AUB Y-2 872.1 11.3 78.5 89.8 10.3 AUB Y-2 1.3 7 0.9 0.0020
AUB Y-3 541.4 8.7 54.1 62.8 11.6 AUB Y-3 1.6 7 0.9 0.0020
AUB Y-4 177.7 0.2 0.2 0.4 0.2 AUB Y-4 0.1 7 0.9 0.0020
AUBRN53 997.7 10.0 29.9 39.9 4.0 AUBRN53 1 20 0.9 0.0020
AUBWV016 214.2 1.7 6.4 8.1 3.8 AUBWV016 0.8 120 0.9 0.1327
MSTTR02A 481.9 1.4 3.9 5.3 1.1 MSTTR02A 0.3 80 1 0.0000
SRT11 111.4 0.9 3.3 4.2 3.8 SRT11 0.8 7 0.9 0.0020
WINT003 74.5 0.2 0.3 0.5 0.7 WINT003 0.3 80 1 0.0000
WINT035 1,685.2 13.5 50.6 64.0 3.8 WINT035 0.8 7 0.9 0.0020
Default 101.7 0.7 3.1 3.8 3.7
Unmetered 0.7 7 0.9 0.0020
Basin Area (acres)
Connecte
d
Imperviou
s (acres)
Table 2 Model A Parameters
Basin Reductio
n Factor
Table 1 Connected Basin Area
Page 968 of 1163
A1 2.60 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A1c 1.60 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A1d 8.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A3 38.00 0.030 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A4 3.40 0.060 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A6 5.50 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A7 16.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A9 9.30 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A10 5.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A11 0.10 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A12 0.05 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A13 0.45 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A14 1.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A15 0.60 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
A16 0.70 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
AUB Y-1 0.70 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
AUB Y-2 9.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
AUB Y-3 10.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
AUB Y-4 0.10 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
AUBRN53 3.00 0.063 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
AUBWV016 3.00 0.032 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
MSTTR02A 0.80 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
SRT11 3.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
WINT003 0.40 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
WINT035 3.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0
Unmetered 3.00 0.033 0.328 0.200 1 10 200 1000 0 0 0 0 0 32.8 0 0 0.1 0 32.8 0Specific Yield (Sy)Minimum Groundwater Depth Max GW depth causing Baseflow GW Depth for Unit Capillary flux (GWLfl1)Overland Flow Threshold (Tof)Interflow Threshold (Tif)Groundwater Threshold (Tg)Initial Surface Storage (U)Initial Root Zone Moisture (L)Initial Groundwater Depth (GWL)Initial Overland Flow (OF)Initial Interflow (IF)Table 3 RDI Parameters
BasinPercent RDI Area (%)Surface Storage (Umax)Root Zone Storage (Lmax)Overland Coefficient (Cqof)Groundwater Coefficient (Carea)TC Overland Flow (CKof)TC Interflow (CKif)TC Baseflow (CKbf)Page 969 of 1163
TM 1 - MODEL CALIBRATION REPORT MAY 2024 / FINAL / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
ATTACHMENT 1G WET WEATHER CALIBRATION SUMMARY
SHEETS
Page 970 of 1163
FLOW MONITORING A1 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A1
Pipeline diameter: 21''
City Manhole ID: 308-20
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 971 of 1163
FLOW MONITORING A1c WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A1c
Pipeline diameter: 18''
City Manhole ID: 309-06
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 972 of 1163
FLOW MONITORING A1d WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A1d
Pipeline diameter: 18''
City Manhole ID: 309-10
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.5
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 973 of 1163
FLOW MONITORING A3 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A3
Pipeline diameter: 18''
City Manhole ID: 409-34
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 974 of 1163
FLOW MONITORING A4 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A4
Pipeline diameter: 12''
City Manhole ID: 508-17
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 975 of 1163
FLOW MONITORING A6 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A6
Pipeline diameter: 12''
City Manhole ID: 610-31
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.5
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 976 of 1163
FLOW MONITORING A7 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A7
Pipeline diameter: 18''
City Manhole ID: 707-03
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
24.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 977 of 1163
FLOW MONITORING A9 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A9
Pipeline diameter: 10''
City Manhole ID: 710-31
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.5
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 978 of 1163
FLOW MONITORING A10 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A10
Pipeline diameter: 24''
City Manhole ID: 710-151
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
24.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 979 of 1163
FLOW MONITORING A11 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A11
Pipeline diameter: 12''
City Manhole ID: 710-142
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.5
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 980 of 1163
FLOW MONITORING A12 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A12
Pipeline diameter: 12''
City Manhole ID: 710-43
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 981 of 1163
FLOW MONITORING A13 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A13
Pipeline diameter: 8''
City Manhole ID: 710-85
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
2.0
4.0
6.0
8.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 982 of 1163
FLOW MONITORING A14 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A14
Pipeline diameter: 18''
City Manhole ID: 710-149
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.5
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 983 of 1163
FLOW MONITORING A15 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A15
Pipeline diameter: 21''
City Manhole ID: 809-30
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.00
0.05
0.10
0.15
0.20
0.25
0.30
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 984 of 1163
FLOW MONITORING A16 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: A16
Pipeline diameter: 18''
City Manhole ID: 809-56
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 985 of 1163
FLOW MONITORING Y-1 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: Y-1
Pipeline diameter: 18''
City Manhole ID: 410-16
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.2
0.4
0.6
0.8
1.0
1.2
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
24.0
27.0
30.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 986 of 1163
FLOW MONITORING Y-2 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: Y-2
Pipeline diameter: 14''
City Manhole ID: 611-02
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 987 of 1163
FLOW MONITORING Y-3 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: Y-3
Pipeline diameter: 24''
City Manhole ID: 1012-55
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
2.0
4.0
6.0
8.0
10.0
12.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
24.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 988 of 1163
FLOW MONITORING Y-4 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: Y-4
Pipeline diameter: 18''
City Manhole ID: 1010-02
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.1
0.1
0.2
0.2
0.3
0.3
0.4
0.4
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 989 of 1163
FLOW MONITORING WINT003 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: WINT003
Pipeline diameter: 42''
City Manhole ID: 508-02
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
24.0
27.0
30.0
33.0
36.0
39.0
42.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 990 of 1163
FLOW MONITORING MSTTR02 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: MSTTR02
Pipeline diameter: 36''
City Manhole ID: 509-16
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
3.0
6.0
9.0
12.0
15.0
18.0
21.0
24.0
27.0
30.0
33.0
36.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 991 of 1163
FLOW MONITORING AUBRN53 WET WEATHER FLOW CALIBRATION
Collection System Planning Project
City of Auburn
Location: AUBRN53
Pipeline diameter: 72''
City Manhole ID: 207-01
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
5.0
10.0
15.0
20.0
25.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Flow (mgd)Flow Calibration
ADWF
Measured Flow
Modeled Flow
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Velocity (ft/s)Velocity Calibration
Measured Velocity
Modeled Velocity
Rain
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.000.0
12.0
24.0
36.0
48.0
60.0
72.0
10/1/2020 10/21/2020 11/10/2020 11/30/2020 12/20/2020 1/9/2021 1/29/2021 2/18/2021 Rain (inches/hour)Level (in)Level Calibration
Measured Level
Modeled Depth
Rain
Page 992 of 1163
APPENDICES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
APPENDIX C PUMP STATION DATA SUMMARY
Page 993 of 1163
APPENDIX C – PUMP STATION DATA SUMMARY SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN C-1
PUMP STATION DATA SUMMARY
Structure ID Pump Station Name Year Built Serial Number Number of
Pumps
Wet Well Lead Pump Lag Pump Single Pump
Capacity
(gpm)
Single Pump
Capacity
(mgd)
Total Station
Capacity
(All Pumps
Running)-
(mgd)
Invert
Elevation
(feet)
Rim
Elevation
(feet)
Depth
(feet)
Unit Area
(ft3/ft)
Volume
(ft3)
Diameter,
Assuming
Circular
(feet)
Start
Level
(feet)
Stop
Level
(feet)
Start
Level
(feet)
Stop
Level
(feet)
South Hill Sewer Basin
1610 Area 19 2006 09-07383-00V 2 522.21 540.81 18.6 28.27 525.8 6 529.2 527.5 530.2 527.5 325 0.468 0.702
1511 North Tapps 2007 09-07382-00N 2 505 537.45 32.45 28.26 917.0 6 512 510.6 513 510.6 510 0.734 1.101
1509 Terrace View 2007 09-07382-00N 2 58.5 77.6 19.1 28.27 540.0 6 64.6 63.8 65.6 63.8 675 0.972 1.458
Valley Sewer Basin
210 Auburn 40 2010 12-07206-00 2 23 57.4 34.4 63.6 2187.8 9 28.5 26.5 29.5 26.5 440 0.634 0.951
1309 Ellingson Road 2011 12-07210-00-F 2 72.3 93.9 21.6 50.27 1085.8 8 77.5 75.8 79.0 75.8 1527 2.199 3.299
1009 F Street 1980 08-7822-D 2 80.2 103.3 23.1 28.27 653.0 6 86.7 85.3 87.7 85.3 400 0.576 0.864
710 R Street 1977 07-7563-F 2 53.98 71 17.02 28.26 481.0 6 60.2 59.2 61.2 59.2 100 0.144 0.216
811 Valley Meadows 1992 14-1723-Z 2 46.98 72.5 25.52 28.26 721.2 6 51.5 50.5 52.5 50.5 125 0.180 0.270
710 8th Street 1974 14-1795-Z 2 60.25 78.25 18 28.27 508.9 6 64.1 63.05 65.05 63.05 150 0.216 0.324
511 22nd Street 1967 800-5 2 41 57.43 16.43 28.7 471.5 6 47.1 45.8 48.1 45.8 550 0.792 1.188
Auburn Way South Sewer Basin
912 Dogwood 2010 09-07394-00-F 2 255 273.4 18.4 50.26 924.8 8 260 259 260.8 259 300 0.432 0.648
West Hill Sewer Basin
705 Peasley Ridge 2001 08-8478-K 2 454.55 474.25 19.7 28.26 556.7 6 460.5 458.6 461.5 458.6 275 0.396 0.594
206 Hudson 2018 18-01131-00-X 2 25.58 53.23 27.7 50.27 1392.5 8 29.0 27.1 30.0 27.1 600 0.864 1.296
Lea Hill Sewer Basin
614 Rainer Ridge 1980 07-7699-C 2 385.25 405 19.75 28.26 558.1 6 391.2 389.1 392.2 389.1 200 0.288 0.432
611 Riverside 1981 07-7784-R 2 41.96 71.21 29.25 28.26 826.6 6 48.4 47.0 49.4 47.0 400 0.576 0.864
413 Verdana 2011 19-01368-00-N 3 363.17 394 30.83 175 5395.3 15 371.37 369.37 372.37 369.37 1750 2.520 3.780
514 Promenade 2018 09-07404-00-X 2 370.60 391 20.40 79 1611.6 10 374.10 372.10 374.60 372.10 174 0.250 0.375
Pump/Pump Station Manufacturer Information Local Equipment Representative
ADS Equipment
PO Box 81045
Seattle, WA 98108
Phone: 206.763.3600
Local Equipment Representative
Ideal Pump
8625 219th SE
Woodinville, WA 98072
Phone: 425.481.7777
All pump stations except 22nd Street Pump Station
Lenexa, Kansas 66215
Phone: 913.888.5201
22nd Street Pump Station
Smith and Loveless
Cornell Pumps 14040 Santa Fe Trail Drive, Portland, OR
Use of contents on this sheet is subject to the limitations specified at the end of this document.
Page 994 of 1163
APPENDICES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
APPENDIX D SEPA CHECKLIST
Page 995 of 1163
SEPA Environmental checklist September 2023 Page 1
(WAC 197-11-960)
SEPA1 Environmental Checklist
Purpose of checklist
Governmental agencies use this checklist to help determine whether the environmental impacts of your
proposal are significant. This information is also helpful to determine if available avoidance, minimization, or
compensatory mitigation measures will address the prob able significant impacts or if an environmental impact
statement will be prepared to further analyze the proposal.
Instructions for applicants
This environmental checklist asks you to describe some basic information about your proposal. Please answer
each question accurately and carefully, to the best of your knowledge. You may need to consult with an
agency specialist or private consultant for some questions. You may use “not applicable” or “does not apply”
only when you can explain why it does not apply and not when the answer is unknown. You may also attach
or incorporate by reference additional studies reports. Complete and accurate answers to these questions
often avoid delays with the SEPA process as well as later in the decision-making process.
The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time
or on different parcels of land. Attach any additional information that will help describe your proposal or its
environmental effects. The agency to which you submit this checklist may ask you to explain your answers or
provide additional information reasonably related to determining if there may be significant adverse impact.
Instructions for lead agencies
Please adjust the format of this template as needed. Additional information may be necessary to evaluate the
existing environment, all interrelated aspects of the proposal and an analysis of adverse impacts. The checklist
is considered the first but not necessarily the only source of information needed to make an adequate
threshold determination. Once a threshold determination is made, the lead agency is responsible for the
completeness and accuracy of the checklist and other supporting documents.
Use of checklist for nonproject proposals
For nonproject proposals (such as ordinances, regulations, plans and programs), complete the applicable parts
of sections A and B, plus the Supplemental Sheet for Nonproject Actions (Part D). Please completely answer all
questions that apply and note that the words "project," "applicant," and "property or site" should be read as
"proposal," "proponent," and "affected geographic area," respectively. The lead agency may exclude (for non -
projects) questions in “Part B: Environmental Elements” that do not contribute meaningfully to the analysis of
the proposal.
1 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/Checklist-guidance
Page 996 of 1163
SEPA Environmental checklist September 2023 Page 2
(WAC 197-11-960)
A. Background
Find help answering background questions2
1. Name of proposed project, if applicable:
City of Auburn, 2024 Comprehensive Sewer Plan
2. Name of applicant:
City of Auburn, Public Works Department, Sewer Division
3. Address and phone number of applicant and contact person:
City of Auburn
Public Works Department
25 West Main Street
Auburn, WA 98001
253-931-3010
Robert Elwell, Sewer Utility Engineer
253-931-4008
4. Date checklist prepared:
June 17, 2024
5. Agency requesting checklist:
City of Auburn
6. Proposed timing of schedule (including phasing, if applicable):
The Comprehensive Sewer Plan is scheduled for adoption during 2024. It identifies
near-term projects for the next six years, and long-term projects over the next twenty
years. It also provides direction for inspection, maintenance, and operation of the
utility. A public hearing was held regarding the adoption of the Plan at the June 4,
2024 Planning Commission meeting.
7. Do you have any plans for future additions, expansion, or further activity related to or
connected with this proposal? If yes, explain.
Page 997 of 1163
SEPA Environmental checklist September 2023 Page 3
(WAC 197-11-960)
None beyond those discussed in this Comprehensive Sewer Plan The next
comprehensive sewer plan update is proposed for the year 2032.
8. List any environmental information you know about that has been prepared, or will be
prepared, directly related to this proposal.
Depending upon the scope of projects proposed in the plan, an individual
environmental checklist and threshold determination would be completed as
specified projects are proposed for construction. There are no environmental or
background studies that have been completed for this sanitary sewer plan.
9. Do you know whether applications are pending for governmental approvals of other
proposals directly affecting the property covered by your proposal? If yes, explain.
At this time, there are no known pending applications for general applicability related
to the area covered by the sewer system. There may be applications pending
related to improvements to the sewer system such as various on-going plats and
developer extensions occurring within the sewer service area. The City plans to
adopt the capital improvement plan outlined in this document as part of the City’s six-
year capital facilities plan.
10. List any government approvals or permits that will be needed for your proposal, if known.
The Comprehensive Sewer Plan must be approved by the City of Auburn City
Council, the King County Council, and the Washington State Department of Ecology.
11. Give brief, complete description of your proposal, including the proposed uses and the
size of the project and site. There are several questions later in this checklist that ask you
to describe certain aspects of your proposal. You do not need to repeat th ose answers on
this page.
The proposed non-project action includes adoption of the Comprehensive Sewer
Plan as an element of the City’s Comprehensive Plan. The City of Auburn’s 2024
Comprehensive Sewer Plan replaces the City of Auburn’s 2016 Comprehensive
Sewer Plan. The plan examines the existing sewer service area which includes both
areas within the city limits and potential annexation areas for the City of Auburn. It
addresses policies, design criteria, and recommends improvements to the sewer
system and its service area. The plan analyzes the current level of service and
identifies important projects necessary to meet City and State Standards regarding
public health, facility efficiency, and operations and maintenance. The wide range of
facility improvements includes repair and replacement, system improvements, facility
evaluations, and extensions of the utility to meet future sewer demands. The
Comprehensive Sewer Plan is an ongoing element of the city Comprehensive Plan
and serves as a guide for the operation, maintenance and expansion of the utility
within its Sewer Service Area, in accordance with local, County, and State
requirements.
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12. Location of the proposal. Give sufficient information for a person to understand the
precise location of your proposed project, including a street address, if any, and section,
township, and range, if known. If a proposal would occur over a range of area, provide the
range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and
topographic map, if reasonably available. While you should submit any plans requi red by
the agency, you are not required to duplicate maps or detailed plans submitted with any
permit applications related to this checklist.
The sewer service planning area as established in the plan is defined as the City of
Auburn’s existing city limits and potential annexation areas. The City of Auburn’s
service area has been modified by several interlocal agreements with neighboring
sewer service providers. Those agreements are included in Appendix A of the
Comprehensive Sewer Plan. The service area is shown on Figure 1.2 of the
Comprehensive Sewer Plan and reflects those agreements.
B. Environmental Elements
1. Earth
Find help answering earth questions3
a. General description of the site:
The sewer service area is characterized by a relatively flat valley floor bordered by
steep hillsides and upland plateaus overlooking the valley.
Circle or highlight one: Flat, rolling, hilly, steep slopes, mountainous, other:
b. What is the steepest slope on the site (approximate percent slope)?
The actual land slopes vary throughout the planning area. Steep slopes exist east
and north of the Green River on Lea Hill, south of the White River, and west along
the West Valley Highway toward the West Hill. The steepest slopes are close to 100
percent.
c. What general types of soils are found on the site (for example, clay, sand, gravel, peat,
muck)? If you know the classification of agricultural soils, specify them, and note any
agricultural land of long-term commercial significance and whether the proposal
results in removing any of these soils.
The valley floor is made up primarily of soils of the Oridia, Renton, Snohomish, and
Briscott series. These soils are poorly drained and formed in the alluvium (river
3 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-
guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-earth
Page 999 of 1163
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sediments) associated with the White and Green rivers. These are considered
good agricultural soils, though in many areas, are not well-drained. There is no
designated farmland within the City of Auburn.
The hillsides and plateaus are made up of primarily Alderwood associated soils
and a small amount of Everett associated soils (U.S. Department of Agriculture,
1973). Alderwood soils are moderately well drained gravelly sandy loams 20-40
inches deep. Beneath these soils is glacial till with low permeability. Roots
penetrate easily to the hardpan layer. Runoff potential is slow to medium. Erosion
and slippage hazard is moderate, ranging to severe on steeper slopes. The
Everett series consists of somewhat excessively drained soils that are underlain by
very gravelly sand. These soils formed in very gravelly glacial outwash deposits
under conifers. They are found on terraces and terrace fronts and are gently
undulating to moderately steep.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If
so, describe.
Some steep slopes, in the areas described earlier, are possible locations of unstable
soils. Geologic hazard areas including volcanic, seismic, landslide, and erosion
hazard areas are mapped in the City Comprehensive Plan and sensitive areas
maps.
e. Describe the purpose, type, total area, and approximate quantities and total affected
area of any filling, excavation, and grading proposed. Indicate source of fill.
Does not apply, since the proposed Comprehensive Sewer Plan is a non-project
action. Sewer system construction projects identified in the plan will require
excavation and grading of an undetermined quantity of material. Specific projects
will be subject to individual environmental review prior to construction.
f. Could erosion occur because of clearing, construction, or use? If so, generally describe.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
g. About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
Does not apply, since this non-project action does not involve site specific
development proposals.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any.
This is a non-project action, so no site specific erosion control is proposed. Specific
projects described by the plan will be subject to individual environmental review
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before implementation. Where applicable, erosion and sedimentation control
measures together with best management practices per the 2019 Surface Water
Management Manual will be used in all areas of potential erosion.
2. Air
Find help answering air questions4
a. What types of emissions to the air would result from the proposal during construction,
operation, and maintenance when the project is completed? If any, generally describe
and give approximate quantities if known.
Does not apply to this non-project action. Specific projects, which are subject to
environmental review, will be evaluated for their potential impact and corresponding
mitigation measures prior to implementation.
b. Are there any off-site sources of emissions or odor that may affect your proposal? If
so, generally describe.
Does not apply to this non-project action. Specific projects, which are subject to
environmental review, will be evaluated for their potential impact and corresponding
mitigation measures prior to implementation.
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation. However, standard emission
controls for construction equipment will be utilized during construction of projects
recommended by this plan.
3. Water
Find help answering water questions5
a. Surface:
Find help answering surface water questions6
1. Is there any surface water body on or in the immediate vicinity of the site
(including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If
yes, describe type and provide names. If appropriate, state what stream or river it
flows into.
4 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-Air
5 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-3-Water
6 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-3-Water/Environmental-
elements-Surface-water
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The major bodies of water within Auburn are the Green River, the White River, Mill
Creek, Bowman Creek, and White Lake.
2. Will the project require any work over, in, or adjacent to (within 200 feet) the
described waters? If yes, please describe and attach available plans.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation and compliance
with the City’s Shoreline Master Program.
3. Estimate the amount of fill and dredge material that would be placed in or
removed from surface water or wetlands and indicate the area of the site that
would be affected. Indicate the source of fill material.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
4. Will the proposal require surface water withdrawals or diversions? Give a general
description, purpose, and approximate quantities if known.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
5. Does the proposal lie within a 100-year floodplain? If so, note location on the site
plan.
Several areas within Auburn lie within the 100-year floodplain of the Green or White
River and Mill Creek. . Specific projects described by the plan which lie within these
flood plains will be subject to individual environmental review before implementation
and must comply with all applicable regulations.
6. Does the proposal involve any discharges of waste materials to surface waters? If
so, describe the type of waste and anticipated volume of discharge.
No
b. Ground:
Find help answering ground water questions7
1. Will groundwater be withdrawn from a well for drinking water or other purposes?
If so, give a general description of the well, proposed uses and approximate
7 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-3-Water/Environmental-
elements-Groundwater
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quantities withdrawn from the well. Will water be discharged to groundwater?
Give a general description, purpose, and approximate quantities if known.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
2. Describe waste material that will be discharged into the ground from septic tanks
or other sources, if any (domestic sewage; industrial, containing the following
chemicals…; agricultural; etc.). Describe the general size of the system, the number
of such systems, the number of houses to be served (if applicable), or the number
of animals or humans the system(s) are expected to serve.
Does not apply to this non-project action. No waste material will be discharged into
the ground as a result of this Plan.
c. Water Runoff (including stormwater):
1. Describe the source of runoff (including storm water) and method of collection
and disposal, if any (include quantities, if known). Where will this water flow? Will
this water flow into other waters? If so, describe.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
2. Could waste materials enter ground or surface waters? If so, generally describe.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
3. Does the proposal alter or otherwise affect drainage patterns in the vicinity of the
site? If so, describe.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
d. Proposed measures to reduce or control surface, ground, and runoff water, and
drainage pattern impacts, if any:
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
4. Plants
Find help answering plants questions
a. Check the types of vegetation found on the site:
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☒ deciduous tree: alder, maple, aspen, other
☒ evergreen tree: fir, cedar, pine, other
☒ shrubs
☒ grass
☒ pasture
☒ crop or grain
☒ orchards, vineyards, or other permanent crops.
☒ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other
☒ water plants: water lily, eelgrass, milfoil, other
☒ other types of vegetation
Does not apply to this non-project action. A wide variety of plants exist across the
Plan area. Specific projects described by the plan will be subject to individual
environmental review before implementation.
b. What kind and amount of vegetation will be removed or altered?
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
c. List threatened and endangered species known to be on or near the site.
Does not apply to this non-project action. Any threatened or endangered species on
or near the recommended projects of this Plan will be listed at the time of the
environmental review process for each individual project.
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, if any.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
e. List all noxious weeds and invasive species known to be on or near the site.
Does not apply to this non-project action. Any noxious weeds or invasive species on
or near the recommended projects of this plan will be listed at the time of
environmental review process for each individual project.
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5. Animals
Find help answering animal questions8
a. List any birds and other animals that have been observed on or near the site or are
known to be on or near the site.
Examples include:
• Birds: hawk, heron, eagle, songbirds, other: geese, ducks, crows
• Mammals: deer, beaver, other: urban animals such as dogs, cats, squirrels,
rodents, opossums, raccoons, etc are also present.
• Fish: salmon, trout
Does not apply to this non-project action. Adoption of the Comprehensive Sewer Plan does
not involve a specific site. Many of the following species could be present within the project
area. Specific projects will be subject to individual environmental review for the identification
of species present before implementation.
b. List any threatened and endangered species known to be on or near the site.
The City of Auburn Comprehensive Plan identifies the presence of Great Blue Heron
and Bald Eagles within the sewer service area. The Environmental Impact
Statement for the Auburn Thoroughbred Racetrack indicates that peregrine falcons,
bald eagles, and the Aleutian Canadian Goose have been seen in the Auburn area.
Chinook Salmon have been listed as endangered by the National Marine Fisheries
Service and Bull Trout have been listed as endangered by the US Fish and Wildlife
Service. Chinook are known to use Mill Creek and the Green and White Rivers. Bull
Trout may inhabit the Green and White Rivers.
c. Is the site part of a migration route? If so, explain.
Does not apply to this non-project action. Adoption of the Comprehensive Sewer
Plan does not involve a specific site. Specific projects will be subject to individual
environmental review before implementation. Auburn is a portion of the Pacific
Flyway for migratory birds and the migration route of a threatened or endangered
species on or near the location of recommended projects of this plan will be listed at
the time of the environmental review process for that particular project.
d. Proposed measures to preserve or enhance wildlife, if any.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
8 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-5-Animals
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e. List any invasive animal species known to be on or near the site.
Does not apply to this non-project action. Any invasive animal species on or near
the recommended projects of this Plan will be listed at the time of environmental
review process for each individual project.
6. Energy and natural resources
Find help answering energy and natural resource questions9
a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet
the completed project's energy needs? Describe whether it will be used for heating,
manufacturing, etc.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
b. Would your project affect the potential use of solar energy by adjacent properties? If
so, generally describe.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
c. What kinds of energy conservation features are included in the plans of this proposal?
List other proposed measures to reduce or control energy impacts, if any.
Does not apply to this non-project action. Adoption of the Comprehensive Sewer
Plan itself will not result in the direct reduction or control of energy impacts. The
policies included in Chapter 2 of this plan do promote sustainability practices within
the Sewer Utility.
7. Environmental health
Health Find help with answering environmental health questions10
a. Are there any environmental health hazards, including exposure to toxic chemicals,
risk of fire and explosion, spill, or hazardous waste, that could occur because of this
proposal? If so, describe.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
9 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-6-Energy-natural-resou
10 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-7-Environmental-health
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1. Describe any known or possible contamination at the site from present or past
uses.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
2. Describe existing hazardous chemicals/conditions that might affect project
development and design. This includes underground hazardous liquid and gas
transmission pipelines located within the project area and in the vicinity.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
3. Describe any toxic or hazardous chemicals that might be stored, used, or produced
during the project's development or construction, or at any time during the
operating life of the project.
•
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
4. Describe special emergency services that might be required.
Does not apply to this non-project action. Specific projects will be subject to individual
environmental review before implementation.
5. Proposed measures to reduce or control environmental health hazards, if any.
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
b. Noise
1. What types of noise exist in the area which may affect your project (for example:
traffic, equipment, operation, other)?
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
2. What types and levels of noise would be created by or associated with the project
on a short-term or a long-term basis (for example: traffic, construction, operation,
other)? Indicate what hours noise would come from the site)?
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Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
3. Proposed measures to reduce or control noise impacts, if any:
Does not apply to this non-project action. Specific projects will be subject to
individual environmental review before implementation.
8. Land and shoreline use
Find help answering land and shoreline use questions11
a. What is the current use of the site and adjacent properties? Will the proposal affect
current land uses on nearby or adjacent properties? If so, describe.
The sewer service area comprises various land uses including residential, industrial,
commercial, open space, and public land uses.
b. Has the project site been used as working farmlands or working forest lands? If so,
describe. How much agricultural or forest land of long-term commercial significance
will be converted to other uses because of the proposal, if any? If resource lands have
not been designated, how many acres in farmland or forest land tax status will be
converted to nonfarm or nonforest use?
Much of Green and White River Valleys and the City of Auburn were used for
agriculture at some time in the past. Over the last several decades, rapid growth in
the area resulted in much of the agricultural land converting to urban uses. No land
within the city is designated as agricultural, though some parcels continue as that
type of use. No change in land use will result from the adoption of the
Comprehensive Sewer Plan.
1. Will the proposal affect or be affected by surrounding working farm or forest
land normal business operations, such as oversize equipment access, the
application of pesticides, tilling, and harvesting? If so, how?
No.
c. Describe any structures on the site.
Many types of structures exist in the sewer service area, including residential,
commercial, institutional, manufacturing, and industrial buildings.
d. Will any structures be demolished? If so, what?
11 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-8-Land-shoreline-use
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Does not apply to this non-project action. Projects which are subject to
environmental review will identify any structures proposed for demolition.
e. What is the current zoning classification of the site?
In general, the sewer service area contains various zoning districts in Auburn and
Unincorporated King and Pierce Counties. In general, the zoning includes single-
family and multi-family residential, light and heavy commercial, light and heavy
industrial, public, and open spaces. Specific Comprehensive Plan Land Use
designations will be identified along with each project’s individual environmental
review.
f. What is the current comprehensive plan designation of the site?
•
• The sewer service area contains various Comprehensive Plan designations. The City of
Auburn has jurisdiction over the majority of the service area. Several small portions of the
service area, as shown on Figure 2-2, lie within King County or Pierce County. Those areas
are subject to the land use designations of the King County and Pierce County
Comprehensive Plans. Specific zoning designations will be identified along with each
project’s individual environmental review.
•
g. If applicable, what is the current shoreline master program designation of the site?
Portions of the City along the Green and White Rivers fall under the Shoreline Master Program.
Shorelines of the State are reflected in Auburn’s Shorelines Master Program, and specific projects
described by the plan will be required to comply with the program.
h. Has any part of the site been classified as a critical area by the city or county? If so,
specify.
Lands classified as critical areas exist within the sewer service area, including wetlands and
streams, geologic hazard areas, aquifer recharge, habitat areas, groundwater protection areas,
and frequently flooded areas. Specific projects described by the plan will be subject to individual
environmental review before implementation.
i. Approximately how many people would reside or work in the completed project?
Does not apply to this non-project action. No specific development is proposed
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j. Approximately how many people would the completed project displace?
Does not apply to this non-project action. The Plan’s programs and project are not intended to
displace any people.
k. Proposed measures to avoid or reduce displacement impacts, if any.
Does not apply to this non-project action.
l. Proposed measures to ensure the proposal is compatible with existing and projected
land uses and plans, if any.
The Comprehensive Sewer Plan is written in accordance with all existing local, county, and state
regulations. This includes the City Comprehensive Plan developed under the Growth
Management Act policies, the King County Comprehensive Plan, the King County Regional
Wastewater Services Plan, and the Pierce County Comprehensive Plan.
m. Proposed measures to reduce or control impacts to agricultural and forest lands of
long-term commercial significance, if any:
The Comprehensive Sewer Plan includes policies consistent with King County and
Pierce County policies to not extend sanitary sewer service to county rural zoned
properties.
9. Housing
Find help answering housing questions12
a. Approximately how many units would be provided, if any? Indicate whether high,
middle, or low-income housing.
Does not apply to this non-project action.
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
Does not apply to this non-project action.
12 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-9-Housing
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c. Proposed measures to reduce or control housing impacts, if any:
Does not apply to this non-project action.
10. Aesthetics
Find help answering aesthetics questions13
a. What is the tallest height of any proposed structure(s), not including antennas; what is
the principal exterior building material(s) proposed?
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
b. What views in the immediate vicinity would be altered or obstructed?
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
c. Proposed measures to reduce or control aesthetic impacts, if any :
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
11. Light and glare
Find help answering light and glare questions14
a. What type of light or glare will the proposal produce? What time of day would it
mainly occur?
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
b. Could light or glare from the finished project be a safety hazard or interfere with
views?
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
c. What existing off-site sources of light or glare may affect your proposal?
13 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-10-Aesthetics
14 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-11-Light-glare
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(WAC 197-11-960)
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
d. Proposed measures to reduce or control light and glare impacts, if any:
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
12. Recreation
Find help answering recreation questions
a. What designated and informal recreational opportunities are in the immediate
vicinity?
The City of Auburn provides a full range of parks and recreational facilities.
b. Would the proposed project displace any existing recreational uses? If so, describe.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
c. Proposed measures to reduce or control impacts on recreation, including recreation
opportunities to be provided by the project or applicant, if any:
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
13. Historic and cultural preservation
Find help answering historic and cultural preservation questions15
a. Are there any buildings, structures, or sites, located on or near the site that are over
45 years old listed in or eligible for listing in national, state, or local preservation
registers? If so, specifically describe.
Although this non-project action will not directly affect any of these structures, there
are several such buildings located within the sewer service area within the City of
Auburn. Policies concerning these sites are addressed in the Historic Preservation
Element of the City’s Comprehensive Plan.
b. Are there any landmarks, features, or other evidence of Indian or historic use or
occupation? This may include human burials or old cemeteries. Are there any material
evidence, artifacts, or areas of cultural importance on or near the site? Please list any
professional studies conducted at the site to identify such resources.
15 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-13-Historic-cultural-p
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(WAC 197-11-960)
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
c. Describe the methods used to assess the potential impacts to cultural and historic
resources on or near the project site. Examples include consultation with tribes and
the department of archeology and historic preservation, archaeological surveys,
historic maps, GIS data, etc.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and
disturbance to resources. Please include plans for the above and any permits that may
be required.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
14. Transportation
Find help with answering transportation questions16
a. Identify public streets and highways serving the site or affected geographic area and
describe proposed access to the existing street system. Show on site plans, if any.
Numerous streets and highways traverse the service area. State Highways 18 and
167 are the two major highways crossing the service area. The City is served by a
network of streets classified as arterials, collectors, and local streets.
b. Is the site or affected geographic area currently served by public transit? If so,
generally describe. If not, what is the approximate distance to the nearest transit
stop?
Yes, the City of Auburn is served by Sound Transit, King County Metro, Pierce
Transit, and Muckleshoot Tribal Transit.
c. Will the proposal require any new or improvements to existing roads, streets,
pedestrian, bicycle, or state transportation facilities, not including driveways? If so,
generally describe (indicate whether public or private).
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
16 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-B-Environmental-elements/Environmental-elements-14-Transportation
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d. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or
air transportation? If so, generally describe.
Does not apply to this non-project action. Specific projects described by the plan will
be subject to individual environmental review before implementation.
e. How many vehicular trips per day would be generated by the completed project or
proposal? If known, indicate when peak volumes would occur and what percentage of
the volume would be trucks (such as commercial and nonpassenger vehicles). What
data or transportation models were used to make these estimates?
Does not apply to this non-project action.
f. Will the proposal interfere with, affect, or be affected by the movement of agricultural
and forest products on roads or streets in the area? If so, generally describe.
Does not apply to this non-project action.
g. Proposed measures to reduce or control transportation impacts, if any:
Does not apply to this non-project action.
15. Public services
Find help answering public service questions17
a. Would the project result in an increased need for public services (for example: fire
protection, police protection, public transit, health care, schools, other)? If so,
generally describe.
Does not apply to this non-project action.
b. Proposed measures to reduce or control direct impacts on public services, if any.
Does not apply to this non-project action.
16. Utilities
Find help answering utilities questions18
a. Circle utilities currently available at the site: electricity, natural gas, water, refuse
service, telephone, sanitary sewer, septic system, other: cable television.
17 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-
guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-15-public-services
18 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-
guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-16-utilities
Page 1014 of 1163
SEPA Environmental checklist September 2023 Page 20
(WAC 197-11-960)
Various levels of service are available throughout the service area.
b. Describe the utilities that are proposed for the project, the utility providing the
service, and the general construction activities on the site or in the immediate vicinity
which might be needed.
The recommended repairs, replacements, improvements, or extensions to sewer
system facilities are required to meet the level of service criteria set forth by local,
county, and state governments. The facilities include sewer mains, manholes, pump
stations, force mains and related appurtenances. Each recommended project will be
subject to its own environmental review process.
C. Signature
Find help about who should sign19
The above answers are true and complete to the best of my knowledge. I understand that the
lead agency is relying on them to make its decision.
Signature:
Name of signee Robert Elwell
Position and Agency/Organization Sewer Utility Engineer, City of Auburn
Date Submitted: May 24, 2024
D. Supplemental sheet for nonproject actions
Find help for the nonproject actions worksheet20
Do not use this section for project actions.
Because these questions are very general, it may be helpful to read them in conjunction with
the list of the elements of the environment.
When answering these questions, be aware of the extent the proposal, or the types of activities
likely to result from the proposal, would affect the item at a greater intensity or at a faster rate
than if the proposal were not implemented. Respond briefly and in general terms.
19 https://ecology.wa.gov/Regulations-Permits/SEPA/Environmental-review/SEPA-guidance/SEPA-checklist-
guidance/SEPA-Checklist-Section-C-Signature
20 https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-
guidance/sepa-checklist-section-d-non-project-actions
Page 1015 of 1163
SEPA Environmental checklist September 2023 Page 21
(WAC 197-11-960)
1. How would the proposal be likely to increase discharge to water; emissions to air;
production, storage, or release of toxic or hazardous substances; or production of
noise?
The proposed non-project action consists of adoption of the Comprehensive Sewer
Plan, which will not itself increase discharge to water or air. Implementation of some
elements of the Comprehensive Sewer Plan has the potential to result in discharges
to water and air. For example construction projects identified in the Plan have the
potential to result in increased noise and exhaust from construction equipment and
dust from exposed soils.
• Proposed measures to avoid or reduce such increases are:
No specific mitigation is proposed for the Plan adoption. The potential for discharge
to air or water will be minimized through the use of best management practices and
through the design and construction and operation consistent with the applicable
local, state, and federal laws. Proposed projects will be reviewed and addressed on
an individual basis by the appropriate agencies prior to implementation.
2. How would the proposal be likely to affect plants, animals, fish, or marine life?
It is not anticipated that the proposed projects will have a significant impact upon fish
or wildlife. Improvements to the system described by the plan are intended to
increase reliability, thereby reducing the risk of environmental contamination, thereby
reducing potential harmful effects on wildlife.
• Proposed measures to protect or conserve plants, animals, fish, or marine life are:
No such measures are proposed for the plan adoption. Proposed projects will be
reviewed on an individual basis and addressed by the appropriate agencies as they
commence.
3. How would the proposal be likely to deplete energy or natural resources?
It is not anticipated that any of the proposed projects will have significant impact on
the use of or need for energy or natural resources. Specific projects described by
the plan will reviewed for their potential impact to energy and resource use as part of
individual environmental reviews prior to implementation.
• Proposed measures to protect or conserve energy and natural resources are:
None specifically, as this is a non-project action. However, the proposed Sewer
Comprehensive Plan includes a policy to evaluate activities to emphasize
“sustainability practices.” Specific projects described by the plan will reviewed for
their potential impact to energy and resource use as part of individual environmental
reviews prior to implementation.
Page 1016 of 1163
SEPA Environmental checklist September 2023 Page 22
(WAC 197-11-960)
4. How would the proposal be likely to use or affect environmentally sensitive areas or
areas designated (or eligible or under study) for governmental protection, such as
parks, wilderness, wild and scenic rivers, threatened or endangered species habitat,
historic or cultural sites, wetlands, floodplains, or prime farmlands?
It is not anticipated that the proposed projects will have a significant impact upon
environmentally sensitive areas or areas designated for governmental protection.
Improvements to the system described by the plan are intended to increase
reliability, thereby reducing the risk of impacts to sensitive areas..
• Proposed measures to protect such resources or to avoid or reduce impacts are:
The Plan does not increase the ability of any person, company, or agency to develop
projects that would affect sensitive areas. Proposed projects identified as part of the
plan will be reviewed on an individual basis and addressed by the appropriate
agencies prior to implementation. Conformance with the applicable local, state, and
federal guidelines and regulations will be required.
5. How would the proposal be likely to affect land and shoreline use, including whether it
would allow or encourage land or shoreline uses incompatible with existing plans ?
The Comprehensive Sewer Plan does not allow or encourage uses incompatible
with existing plans. Specific projects will be subject to individual environmental
review before implementation.
• Proposed measures to avoid or reduce shoreline and land use impacts are:
None specifically, as this is a non-project action. However, specific projects
described by the plan will reviewed for their potential impact to shoreline use and
land use as part of individual environmental reviews prior to implementation.
6. How would the proposal be likely to increase demands on transportation or public
services and utilities?
The proposal will not result in an increase in demands on transportation and public
services. The Comprehensive Sewer Plan responds to growth by identifying the
public facilities and improvement needed to address future growth addressed by the
City Comprehensive Plan.
• Proposed measures to reduce or respond to such demand(s) are:
The Comprehensive Sewer Plan identifies sewer facilities required to accommodate
growth. Any proposal to construct those facilities will be subject to environmental
review which will identify specific impacts to transportation, public services or other
utilities.
7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws
or requirements for the protection of the environment.
Page 1017 of 1163
SEPA Environmental checklist September 2023 Page 23
(WAC 197-11-960)
The Sewer Comprehensive Plan does not appear to present any conflict with local,
state, or federal laws or requirements.
Page 1018 of 1163
[Correction]
DETERMINATION OF NON-SIGNIFICANCE (DNS)
City of Auburn Comprehensive Plan Sewer Update
SEP24-0008
The City of Auburn is issuing a Notice of Application (NOA) and a Determination of Non-Significance (DNS)
for the following described project. The permit applications and listed studies may be reviewed at the
Auburn Department of Community Development at One E Main St., 2nd Floor, Customer Service Center,
Auburn, WA 98001 and by visiting www.auburnwa.gov/landuse.
Proposal: The proposed non-project action includes adoption of the Comprehensive Sewer Plan as an
element of the city's Comprehensive Plan. The City of Auburn's 2024 Comprehensive Sewer Plan replaces
the City of Auburn's 2016 Comprehensive Sewer Plan. The plan examines the existing sewer service area
which includes both areas within the city limits and potential annexation areas for the City of Auburn. It
addresses policies, design criteria, and recommends improvements to the sewer system within its service
area. The plan analyzes the current level of service and identifies important projects necessary to meet
city and state standards regarding public health, facility efficiency, and operations and maintenance. The
wide range of facility improvements includes repair and replacement, system improvements, facility
evaluations, and extensions of the utility to meet future sewer demands. The Comprehensive Sewer Plan
is an ongoing element of the city's Comprehensive Plan and serves as a guide for the operation,
maintenance and expansion of the utility within the sewer service area, in accordance with the local,
County, and State requirements.
Location: City-wide
Notice of Application:
Not Applicable.
Application Complete:
June 25, 2024
Permit Application:
June 17, 2024
File Nos.
SEP24-0008
Property Owner:
City of Auburn
25 W Main St.
Auburn WA, 98001
Applicant:
City of Auburn
Robert Elwell
25 W Main St.
Auburn WA, 98001
Studies/Plans Submitted with Application:
SEPA Environmental Checklist, prepared by City of Auburn, revision dated September 2023
Sewer Comprehensive Plan Element, prepared by City of Auburn, revision dated June 2024
Other Permits, Plans, and Approvals Needed:
Not Applicable.
Statement of Consistency and List of Applicable Development Regulations: This proposal is subject
to and shall be consistent with the Auburn City Code, Comprehensive Plan, and Public Works Design and
Construction Standards.
Lead Agency: City of Auburn. The lead agency for this proposal has determined that it does not have
probable significant adverse impact on the environment. An environmental impact statement (EIS) is not
required under RCW 43.21C.030(2)(c). This decision was made after review of a completed
Page 1019 of 1163
Determination of Non-Significance
SEP24-0008
Page 2 of 2
environmental checklist and other information on file with the lead agency. This information is available to
the public on request.
SEPA Environmental Review: This DNS is issued under WAC 197-11-340(2); the lead agency will not act
on this proposal for 14 days from the date below.
Public Comment Period: This may be your only opportunity to comment on the environmental impact of
the proposal. All persons may comment on this application. Comments must be in writing and submitted
by 5:00 p.m. on August 26, 2024 to the mailing address of 25 W Main St., Auburn, WA, 98001 or emailed
to the contact below. Any person wishing to become a party of record, shall include in their comments
that they wish to receive notice of and participate in any hearings, if relevant, and request a copy of
decisions once made. The responsible official will reconsider the DNS based on timely comments and
may retain, modify, or, if significant adverse impacts are likely, withdraw the DNS. If the DNS is retained,
it will be final after the expiration of the comment deadline.
Any person aggrieved of the City's determination may file an appeal with the Auburn City Clerk at 25 West
Main Street, Auburn, WA 98001-4998 within 14 days of the close of the comment period, or by 5:00 p.m.
on September 9, 2024.
For questions regarding this project, please contact Gabriel Clark, Planner I, at planning@auburnwa.gov or
253-470-2147.
Public Hearing: N/A
RESPONSIBLE SEPA OFFICIAL:
Alexandria D. Teague, Planning Services Manager
ADDRESS:
25 West Main St.
Auburn, WA 98001
253-931-3090
DATE ISSUED: August 8, 2024 SIGNATURE: ______________________
Note: This determination does not constitute approval of the proposal. Approval of the proposal can only
be made by the legislative or administrative body vested with that authority. The proposal is required to
meet all applicable regulations.
Page 1020 of 1163
APPENDICES SEPTEMBER 2024 / DRAFT / CAROLLO
CITY OF AUBURN 2024 COMPREHENSIVE SEWER PLAN
APPENDIX E RECLAIMED WATER CHECKLIST
Page 1021 of 1163
For questions, call Kristina Westbrook,
King County Reclaimed Water Program Manager at (206) 296‐5279
www.kingcounty.gov/reclaimedwater
Revised 12/12/2011
Water Reclamation Evaluation Checklist
For Systems with 1,000 or more Connections
The County and State recognize that changing conditions could initiate a need to
respond in new ways to future water quality standards, wastewater discharge
requirements, take advantage of advances in treatment technologies and/or allow
our region to be positioned to respond to changes associated with climate change
and population growth.
In 2003, Chapter 90.46 of the Revised Code of Washington (RCW) was amended
to require public water systems serving 1,000 or more connections to evaluate
opportunities for reclaimed water when completing their water system plans.
Please use this checklist to meet King County consistency requirements in
responding to this legislation.
Water System Name:_______________________________
Date: ____________________________________________
PWS ID#__________________________________________
Contact: ________________________________________
1. Identifying Potential Future Demand for Reclaimed Water: King County maintains a database and map of potential
reclaimed water users for evaluating future projects. Please use the template below, or similar table, to provide
information to assist King County in further researching these potential uses.
Large Utility Water Users (choose one):
Attached is an inventory of twenty large (above 20,000 gallons/month on average), non single‐family
residential, water users served by our utility that have a potential for reclaimed water use, or
Attached is an inventory of our utility’s top twenty water users, or
The information requested is unknown or not available.
Additional Comments: ___________________________________________________________
Large Self Suppliers (choose one):
Attached is an inventory of large, self‐supplied water users within our water utility’s service boundaries ‐
especially those near wastewater treatment plants, mainlines, outfalls, and pump stations or similar
reclaimed water facilities), or
The information requested is unknown or not available.
Additional Comments: ____________________________________________________________
Other (choose one):
Attached is an inventory of other water users (such as those that are clustered near one another and
could be served by a single system) that may be likely candidates for reclaimed water use, or
The information requested is unknown or not available.
Additional Comments: ____________________________________________________________
Please use this checklist, including
the inventory template, to ensure
that your water system plan
includes sufficient information
about opportunities for reclaimed
water and your system’s efforts to
develop those opportunities. If a
question is not applicable or the
information is unavailable, then
answer, “unknown” or “n/a.”
King County will consider the
checklist completed if each
answer is filled in with the best
available information, even if the
utility states that it is not aware of
any reclaimed water opportunities
within its service area.
Page 1022 of 1163
Water Reclamation Evaluation Checklist
Page 2
2. Environmental Commitment: Are you a city/town, or providing water service to a city/town, that has made
commitments within resource management plans, salmon recovery plans, or other environmental initiatives for
which there is a potential opportunity for using reclaimed water to assist in meeting commitments? (choose one)
Yes, here are plans that have potential for reclaimed water use in our service area to meet the above
commitments:
________________________________________________________________________________________
________________________________________________________________________________________
The information requested is unknown, not available.
Additional Comments: __________________________________________________________________
3. Identifying Areas of Potential Use of Reclaimed Water for Environmental Benefit:
Below are examples of uses of reclaimed water that comply with State, Federal and other reclaimed water
environmental, health and safety standards. All of these uses are currently in effect somewhere in Washington
State. To the best of your knowledge, are any of these potential uses for reclaimed water applicable to your area?
River Augmentation (choose one):
Yes, our water rights are limited by instream flows. For more information, King County may contact:
________________________________________________________________________________________
________________________________________________________________________________________
The information requested is unknown, or not available.
Additional Comments: __________________________________________________________________
Groundwater Recharge (choose one):
Yes, we withdraw water from an aquifer that is in a groundwater management area, or from a declining
aquifer, where water levels may need to be replenished or to maintain aquifer storage. For more
information, King County may contact:
________________________________________________________________________________________
The information requested is unknown, or not available.
Additional Comments: __________________________________________________________________
Water Rights Mitigation (choose one):
Yes, our area is pursuing, or planning to pursue, new or additional water rights, and there may be an
opportunity to use reclaimed water for mitigation of those new water rights. For more information, King
County may contact:
________________________________________________________________________________________
The information requested is unknown, or not available.
Additional Comments: __________________________________________________________________
Potential Areas of Environmental Need (choose one):
Yes, parts of our service area include potential environmental enhancement locations, such as wetlands
enhancement, aquifer recharge, stream flow augmentation, that might be candidates for reclaimed water
use. For more information, King County may contact:
________________________________________________________________________________________
The information requested is unknown, or not available.
Additional Comments: __________________________________________________________________
Page 1023 of 1163
Water Reclamation Evaluation Checklist
Page 3
4. Local Reclaimed Water Legislation: If water reclamation is mandated for this water system through local
government agreement, contract, local regulations, ordinances, or other mechanisms, please provide a copy of the
governing mechanism (choose one).
Yes, local legislation exists in our area in support of reclaimed water use. The following relevant legislation
is attached (please list titles of documents):
________________________________________________________________________________________
________________________________________________________________________________________
No water reclamation legislation exists, or is known to exist, at a local level in our service area.
5. Coordination with Local Wastewater Utility: Include a brief description of your interactions with any wastewater or
reclaimed water utility (King County or other) adjacent to your service area to evaluate any potential opportunities
to develop reclaimed water (choose one).
Describe if applicable:
________________________________________________________________________________________
________________________________________________________________________________________
None. Additional Comments: _______________________________________________________________
Template for
Inventory of Water Users and Identification of Potential Reclaimed Water Users
Site Owner or Site
Name
Site Address
(for general mapping purposes)
Estimated Annual
Water Use
Water uses not
requiring potable
water1
Is this a Potential
Reclaimed Water
Customer?
1 See Washington State Reclamation and Reuse Standards, September 1997, Section 1, Articles 1‐5 for allowable uses of reclaimed water.
http://www.ecy.wa.gov/PROGRAMS/WQ/reclaim/standards.html
Page 1024 of 1163
A U B U R N
V A L U E S
S E R V I C E
E N V I R O N M E N T
E C O N O M Y
C H A R A C T E R
S U S T A I N A B I L I T Y
W E L L N E S S
C E L E B R A T I O NENGINEERING SERVICES2024 COMPREHENSIVE SEWERPLAN UPDATE BOB ELWELL, SEWER UTILITY ENGINEERPLANNING COMMISSION MEETINGSEPTEMBER 17, 2024Public Works DepartmentEngineering Services Airport Services Maintenance & Operations ServicesPage 1025 of 1163
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATIONSpring 2023 –Council Review of Goals and Policies•Update Existing System Information•Update and Calibrate Hydraulic ModelFall 2023 –Complete Population/ Employment Projections•Future Flow Projections•Identify Future Capacity Issues•Plan for Future Projects and AssessmentsSpring 2024 -Planning Commission Review•Other Agency Review•D.O.E.•King County U.T.R.C.•SEPA ReviewFall 2024 –City Council Review and Adoption 2PLAN DEVELOPMENT PROGRESS/MILESTONESSummer 2024-Planning Commission Recommendation to CouncilPage 1026 of 1163
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATION
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATIONAny Questions?2024 SANITARY SEWER COMPREHENSIVE PLAN4Page 1028 of 1163
AGENDA BILL APPROVAL FORM
Agenda Subject:
Parks and Recreation PROS Plan (Gouk)
Date:
August 28, 2024
Department:
Community Development
Attachments:
PROS Plan
PROS Plan Presentation
Budget Impact:
Current Budget: $0
Proposed Revision: $0
Revised Budget: $0
Administrativ e Recommendation:
Background for Motion:
Background Summary:
See Attachments
Rev iewed by Council Committees:
Councilmember:Staff:Thaniel Gouk
Meeting Date:September 17, 2024 Item Number:
Page 1029 of 1163
AUBURN
Parks, Recreation, Open Space, & Trails Plan
Update
September 2024
Page 1030 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 2 2
Project Information
Project: Auburn Parks, Recreation, Open Space, & Trails Plan Update
Prepared for: City of Auburn
Reviewing Agency
Jurisdiction: City of Auburn
WA State Recreation & Conservation Office
Project Representative
Prepared by: SCJ Alliance
Contact: Chris Overdorf, ASLA PLA Project Manager & Principal Parks Planner
Page 1031 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 4 4
Table of Contents
Introduction ....................................................................................................9
Purpose ..........................................................................................................................................10
Regulatory Requirements ....................................................................................................................11
Process ................................................................................................................................................................13
Inventory & Assessment .........................................................................13
INVENTORY & ASSESSMENT............................................................................................14
Planning Context ........................................................................................................................................15
Physical Context ..........................................................................................................................................15
DEMOGRAPHIC CONTEXT .................................................................................................................17
System Inventory ........................................................................................................................................19
Public Involvement ....................................................................................42
Engagement Goals ..................................................................................................................................43
Public Engagement Plan Overview ...........................................................................................44
Age Range ....................................................................................................................................46
Ethnicity .........................................................................................................................................46
Household Size ..........................................................................................................................46
Home Location..........................................................................................................................47
Neighborhood of Residence ............................................................................................47
Frequency ....................................................................................................................................48
Length of Visit ...........................................................................................................................48
Season ............................................................................................................................................48
Types of Facilities Used .......................................................................................................48
Recreational Facility Use .......................................................................49
Recreational Facilities Outside Auburn ....................................................................51
Page 1032 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 5 5
Barriers to Use ...................................................................................................................................51
The City Needs... ...............................................................................................................................52
Demand & Needs ............................................................................................54
Quantifications vs Qualifications ............................................................................................................55
Park Equity & Access .........................................................................................................................................56
The “10-Min Walk” Metric ..............................................................................................................................56
Recreation Trends................................................................................................................................................56
Level-of-Service (LOS) ......................................................................................................................................63
Goals & Objectives ............................................................................................71
Capital Improvement Program ................................................................77
Developing The Capital Improvement Program ......................................................................79
Park Impact Fee Analysis............................................................................103
Approvals ..............................................................................................................107
Adoption Process ...............................................................................................................................................108
Council Resolution .............................................................................................................................................109
A - Terms & Definitions .................................................................................117
B - Standards & Guidelines .........................................................................119
C - Park Needs & Assessment Survey Comments .......................122
Page 1033 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 7 7
The City of Auburn’s Parks, Recreation, and Open Space (PROS) Plan is an ambitious and visionary blueprint designed to elevate the city’s parks and recreation facilities to meet the evolving needs of its vibrant community. This comprehensive plan, which spans from 2024 to 2030, is the result of extensive public engagement, reflecting the community’s collective aspirations for a higher quality of life through enhanced recreational services and access to diverse outdoor opportunities.
The PROS Plan outlines a strategic Capital Improvement Program (CIP) that prioritizes both immediate enhancements and long-term projects, ensuring that Auburn’s parks and open spaces continue to be cherished assets for generations to come. It reaffirms the city’s commitment to fostering a healthy, walkable community, promoting environmental
stewardship, and creating spaces that inspire connection, well-being, and a sense of place.
To bring this vision to life, the plan is designed with flexibility, allowing for adjustments as community needs evolve, new opportunities arise, and funding sources become available. The city is committed to leveraging a mix of municipal budgets, grants, and the passionate efforts of community volunteers to realize these improvements. Through ongoing review and adaptive management, Auburn aims to create a parks and recreation system that not only meets the current needs of its residents but also anticipates and shapes the future, ensuring that the city remains a dynamic, engaging, and inclusive place to live, work, and play.
Summary
Page 1034 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 8
PLACEHOLDER FOR COVER LETTER FROM DARYL...
Page 1035 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 9 | Overview 9City of Auburn Parks, Recreation, Open Space, & Trails Plan
Introduction
Page 1036 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 10
Welcome to the City of Auburn’s Parks, Recreation, and Open Space Plan Update (PROS Plan). This document fulfills the requirements of the Growth Management Act (GMA), ensuring the City’s eligibility for funding from the Washington State Recreation and Conservation Office (RCO) and other sources over the next six to ten years. It provides a comprehensive overview of Auburn’s parks, recreation areas, open spaces, and non-motorized trails.
The PROS Plan incorporates public input gathered through surveys, outreach, and online tools to assess recreational needs and preferences. It evaluates the current conditions of the city’s parks and open spaces, establishing a vision and goals based on community demand.
A critical component of this document is the Capital Improvement Plan (CIP). Upon approval, the CIP will finalize the PROS Plan by recommending enhancements aimed at improving services for Auburn residents over the next six years and beyond. These recommendations are strategically linked to potential grant funding sources, guiding the City in prioritizing projects that align with the community’s desired quality of life.
Purpose
In Washington State, communities like Auburn rely on Parks, Recreation, and Open Space (PROS) Plans to shape the future of their outdoor spaces, serving as vital roadmaps for growth, development, and preservation. These plans are not just state mandates;
they are essential tools for balancing growth with environmental protection and enhancing residents’ quality of life.
For Auburn, the PROS Plan is crucial for complying with the Growth Management Act (GMA), which ensures thoughtful planning to accommodate growth while protecting the environment and enhancing residents’ quality of life.
However, the PROS Plan goes beyond mere compliance. It embodies a vision and a commitment to community engagement, providing a platform for residents to express their needs and desires for parks, trails, and recreational areas. Through surveys, outreach, and online tools, the city gathers valuable input to ensure the plan reflects the diverse interests and aspirations of its people.
At its core, the PROS Plan is about dreaming big while remaining practical. It sets ambitious goals for improving access to recreational amenities, enhancing existing facilities, and expanding green spaces. These goals are not just lofty ideals; they are actionable steps toward creating a community where residents can live, work, and play.
Within the PROS Plan is the Capital Improvement Plan (CIP), a strategic blueprint for turning vision into action. The CIP outlines specific projects and improvements designed to enhance services for Auburn’s residents over the next six years and beyond. These projects are carefully aligned with the community’s goals and values, ensuring that every dollar spent brings tangible benefits.
Page 1037 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Overview 11
In essence, the PROS Plan is Auburn’s promise to its residents: a commitment to vibrant parks, thriving green spaces, and abundant opportunities for outdoor adventure. It is a testament to the city’s dedication to building a sustainable future where nature and community flourish together.
Regulatory
Requirements
Growth Management Act
Requirements
RCW 36.70A.140, known as the Growth Management Act (GMA), is crucial to all Comprehensive Parks, Recreation, and Open Space (PROS) Plans in Washington State. This law mandates that local governments, such as cities and counties, plan for growth through comprehensive plans that consider natural resources, economic development, and residents’ quality of life.
Specifically, the GMA requires local governments to adopt comprehensive plans that address various aspects, including parks and recreation. Additionally, it outlines the requirements for a Capital Facilities Plan (CIP) that includes:
An inventory of existing public facilities, including green spaces.
Forecasts for future needs of these facilities.
Plans for expanding or building new facilities.
A six-year funding plan with identified public funding sources.
A requirement to reassess plans if funding falls short, ensuring all elements are coordinated. Parks and recreation facilities are integral to the CIP.
The Parks and Recreation element of the GMA further specifies that the plan should include:
Estimates of park and recreation demand for at least ten years.
An evaluation of existing facilities and service needs.
Exploration of opportunities for regional collaboration on park and recreation services.
In the context of a PROS Plan, RCW 36.70A.140 provides the legal framework for integrating parks, recreation, and open space considerations into overall planning. The PROS Plan becomes a specific component of the broader comprehensive plan, focusing on developing, maintaining, and enhancing
these aspects within the community.
By adhering to RCW 36.70A.140, cities like Auburn ensure their PROS Plans align with state goals for sustainable growth and development. Compliance with the GMA is essential for Auburn to access state funding and effectively manage its parks, recreation, and open spaces.
Washington Recreation and
Conservation Office (RCO)
Requirements
The Recreation and Conservation Office (RCO) promotes outdoor recreation and conservation in Washington State through grants and technical assistance, ensuring that all residents have access to well-maintained parks and protected natural spaces. However, their role extends beyond funding.
1. The RCO recognizes the importance of well-planned park systems, which not only serve local communities but also contribute to a statewide network of parks and open spaces. A well-implemented Parks, Recreation, and Open Space (PROS) Plan acts as a roadmap for a city’s park system, communicating the current state of parks, recreation facilities, budgeting, and programs to the RCO. It identifies gaps in current and future service levels and develops an actionable vision for the community’s future. This roadmap assures the RCO that grant money will be used effectively to meet community needs aligned with statewide goals.
The RCO requires a PROS Plan, updated every six years, to comply with the Growth Management Act (GMA). These plans should cover the following key elements:
2. Existing Conditions & Baseline Analysis: Establishes the groundwork by reviewing past plans, demographics, and park system trends.
3. Community & Systems Needs Assessment: Identifies gaps and needs in park infrastructure, assesses facility conditions, and sets service level benchmarks.
4. Priorities, Strategies, and Implementation Plan: Compiles the analyses and proposes recommendations. It prioritizes goals, outlines implementation strategies, and establishes a potential capital improvement plan for park development.
By following RCO’s guidelines and creating a strong PROS Plan, Auburn can secure grant funding, improve its park system, and enhance the quality of life for its residents. To ensure compliance with RCO’s framework
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and alignment with the GMA, communities must submit the PROS Plan along with the RCO’s Self-Certification Form (see Approvals Section). By adhering to this framework, Washington communities can develop a robust vision for their parks and recreation systems and strengthen their grant applications by demonstrating clear vision and strategic priorities.
More information can be found in RCO’s Manual 2: Planning Guidelines (January 2024), available at:
https://rco.wa.gov/recreation-and-conservation-office-grants/grant-manuals/.
Process
While RCO has no specific requirements for the number of pages, number of chapters, or format for comprehensive parks plans, it is expected that the plan will capture the needs of the organization and, more importantly, the quality of life desired by the community.
The process used to develop the City of Auburn’s Park’s PROS Plan Update is modeled after six minimum elements noted in RCO Manual 2: Planning Policies & Guidelines. Whether this plan supports a grant application for a capital project (facility development and land acquisition) or a non-capital project (architectural, engineering, planning, etc.,) the organization of this plan and the process followed is purposefully designed to capture the elements expected by RCO.
Aside from this, the first section, the project overview, this plan is structured around six primary sections or elements needed for an effective comprehensive parks plan:
Existing Conditions
(Systems Inventory)
A description of the planning or service area, including the physical setting, the community profile, other mutually supportive planning efforts, and a summary of conditions of the complete inventory of each existing outdoor recreation asset or program.
Public Involvement
A description of how the planning process gave the public ample opportunity to be involved in plan development and adoption.
Demand & Needs Analysis
An analysis that takes your inventory work and public involvement into consideration, balancing
public demand with your organization’s current capacity and future expectations.
Goals and
Objectives
The plan must support the applicant’s park and recreation mission, including the current project, with broad statements of intent, or goals that capture a community’s desired outdoor recreation resources.
Capital
Improvement
Program
A list of the desired capital improvements or capital facility programs of at least 6 years that lists and prioritizes desired land acquisition, development, renovation, and restoration projects.
Approvals
A resolution, ordinance, or other adoption instrument showing formal approval of the plan and planning process by the governing entity.
The process diagram below identifies the priority sections needed to develop a GMA-compliant and RCO-certified PROST plan, however, many steps ran concurrently.
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Inventory &
Assessment
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INVENTORY &
ASSESSMENT
This section aims to provide a comprehensive understanding of the current conditions of Auburn’s parks, recreation programs, open space, and trail system. It examines the condition of the City’s parks system, the population served by these parks, and the regional context and planning efforts that shape the system.
The City of Auburn manages a diverse range of parks and recreation assets, including 10 neighborhood parks, 14 community parks, 6 parcels of dedicated open space, 13 pocket parks and tot lots, and 16 special use facilities, including a golf course and trail systems. Given Auburn’s current population of 90,096 in 2024, this equates to approximately 11.8 acres of parkland per 1,000 residents. This ratio aligns Auburn with other communities across the country, which have a median of 11.2 acres of parkland per 1,000 residents. A more detailed analysis of the composition of Auburn’s parks and recreation system is provided in the Demand & Needs section of this report.
The inventory and assessment section, and the information that follows, is divided into four distinct contexts that capture the structure upon which the parks system is a part of.
Physical Context
Demographic Context
Planning Context
Site Evaluations
Pocket Parks
21st Street Playground • North Tapps Estates
Riversands Park • Terminal Park
Village Square Park • Ballard Park
Dorothy Bothell Park • Dykstra Park
Edgeview Park • Forest Villa Tot Lot
Gaines Park • Indian Tom Park • Jordana Park
NEIGHBORHOOD PARKS
Auburndale 2 Park • Shaughnessy Park
Auburndale Park • Cameron Park
Cedar Lanes Park • Evergreen Park
Lakeland Hills Park • Riverpoint Park
Scootie Brown Park • Trail Run
COMMUNITY PARKS
104th Ave SE • Brannan Park • Fulmer Park
Game Farm Park • Game Farm Wilderness
GSA Park • Isaac Evans Park
Jacobsen Tree Farm (und.) • Lea Hill Park
Les Gove Park • Mill Pond Park • Roegner Park
Sunset Park • Veterans Memorial Park
OPEN SPACE
Auburn Environmental • Clark Property
Game Farm Open Space • Golf Course
Lakeland Nature Area • Mary Olson Farm
West Auburn Lake
SPECIAL USE AREAS
B Street Plaza • Bicentennial Park
Centennial Viewpoint Park • City Hall Plaza
Clark Plaza • Community Garden A
Community Garden B • Environmental Park
Fenster Nature Park • Fly-in Lion
Mary Olson Farm • Mountain View Cemetery
Pioneer Cemetery • Plaza Park
Slaughter Memorial
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Planning Context
Auburn: A History of
Transformation
The Auburn area has a rich history of human settlement, with indigenous populations being the first inhabitants. Tribal groups such as the Skopamish, Smalhkamish, and Stkamish thrived at the confluence of local rivers, establishing trade routes over the Cascade Mountains, interacting with eastern tribes, and using the waterways for resource gathering and commerce with coastal groups.
In the mid-1800s, the first European pioneers arrived in the White River Valley. The following decades, particularly the 1880s, saw the arrival of railroads, which attracted settlers from various regions, including the eastern and Midwestern United States, Europe, and Asia. Early European and Japanese farmers began cultivating the fertile land, leading to bountiful harvests and establishing the White River Valley as a prominent agricultural center.
Auburn’s central location between Seattle and Tacoma played a significant role in its development. The construction of a hydroelectric power plant on the upper White River in 1911 provided electricity for Auburn, Seattle, and Tacoma, and powered the Interurban Railway. Additionally, the selection of Auburn by the Northern Pacific Railroad in 1910 as the site for its western freight terminal spurred a population boom, driven by the influx of permanent rail workers in need of housing.
World War II had a profound impact on Auburn’s trajectory. The federal government’s wartime relocation of Japanese American citizens to internment camps resulted in the loss of numerous businesses, homes, and farms. Unfortunately, most of these families never returned.
Although Auburn remained an agricultural hub for some time, the city began transitioning towards increased industrialization in the post-war period. In the 1960s, the establishment of a Boeing aircraft plant in the city marked a pivotal shift. Efforts to address historical flooding issues, including the construction of Mud Mountain and Howard Hanson Dams by the U.S. Army Corps of Engineers, further supported Auburn’s transformation from a frontier settlement to a developed industrial center.
Auburn’s strategic position within south King County made it a desirable location during the 1990s, a period coinciding with a population surge across the Puget Sound region. The city’s population, estimated to be around 30,000 in 1990, grew significantly over the next few decades, reaching approximately 76,347 by 2014—a 154.5% increase. However, from around 2014 onward, growth slowed to approximately 11%, marking a
significant deceleration from the previous pace.
This slowdown during the 2000s can be attributed to a combination of economic and demographic factors. The region faced the aftermath of the dot-com bust and the early 2000s economic recession, which impacted job creation and investment. Additionally, the housing market crisis that culminated in the 2008 financial crash significantly affected real estate development and home purchases, leading to a decrease in population influx. Infrastructure limitations and congestion also played a role, as the city’s capacity to accommodate rapid growth was stretched thin, particularly considering its physical context. Moreover, competition from nearby cities offering more attractive amenities or better economic opportunities may have diverted potential residents and businesses away from Auburn. These factors collectively contributed to a period of slower growth for the city during that decade.
Today, Auburn remains an attractive community known for its family-oriented, small-town atmosphere. With more affordable housing compared to most of King County, convenient highway access, and a charming small-town feel, Auburn is poised for continued, stable, and sustainable growth. This growth will increase the demand for quality of life elements that the community expects, including the demand for and access to recreational facilities.
Physical Context
Auburn’s location in the Puget Sound region has profoundly influenced its historical development and future growth. The city’s geography has been central to its evolution, with its proximity to rivers making it an essential transportation hub for both Native Americans and early settlers. The fertile valley attracted cultivation, and railways were later built to transport crops and timber from Auburn to larger cities like Tacoma and Seattle.
Today, Auburn is traversed by two major rivers, the White River and the Green River, along with two critical transportation corridors, SR-167 and SR-18. These natural and man-made features divide the city, with a flat valley floor surrounded by steep ascents leading to the West Hill and East Hill. The valley is further segmented by Highway 167 and distinct zoning designations, creating identifiable areas such as Downtown and the Industrial Valley.
The Green River is fed by numerous creeks that carve through the East Hill, forming ravines and preserving natural spaces, which in turn limit mobility within this region. East Hill is primarily a residential area with pockets of retail, and it is crossed by major roads like Highway 515 and E James Street. In contrast, West
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Hill is somewhat isolated from the rest of the city, bounded by the Green River and Highway 516, and further divided by I-5.
Topography
Nestled within the Puget Sound Lowland region of the Pacific Northwest, Auburn is a city shaped by the enduring legacy of ancient glacial epochs and the ongoing influence of geological forces. Positioned between the eastern foothills of the Cascade Range and the shores of Puget Sound, Auburn features a diverse range of terrain types.
To the east, the Cascade foothills rise gradually, giving the landscape a gentle undulation that ascends toward the towering peaks of the Cascade Range. These foothills provide a rich tapestry of topographical variety, offering panoramic vistas and numerous recreational opportunities.
The city’s landscape is marked by a broad, flat valley bordered by the Green River and Lea Hill to the east, and West Hill to the west. These green slopes define Auburn’s contours, creating natural boundaries within the urban expanse while offering breathtaking views of the Cascade Range and the iconic silhouette of Mount Rainier.
To the west, Auburn’s proximity to Puget Sound imparts a maritime character to its climate and geography. Located near the southern edge of the sound, the city benefits from easy access to waterfront areas and the thriving marine ecosystems they support. This maritime influence moderates the climate, resulting in milder winters and cooler summers compared to the more extreme conditions experienced further inland.
Hydrology
Auburn’s intricate network of rivers and creeks holds deep significance for the community, serving a variety of crucial functions and enriching the local landscape. These waterways act as natural drainage systems, contribute to flood mitigation, provide vital habitats for diverse fish and wildlife, offer scenic beauty, hold historical importance, and create opportunities for recreation.
The history of Auburn’s watercourses, particularly the White River, highlights the complex interaction between natural forces and human intervention. Before 1906, the White River flowed through King County, merging with the Green River before emptying into Elliot Bay. However, a significant debris blockage in 1906 altered the river’s course, diverting floodwaters away from King County and redirecting them down
the Stuck River into the Puyallup River. To manage this change, a permanent diversion wall was built at Game Farm Park in Auburn, directing the White River to its current path.
Today, the White River in southern Auburn serves as a natural boundary, separating the more developed urban core from the rural areas beyond. Historically, the city developed within the river valley, where many of its parks are located. However, with the valley reaching its developmental capacity, urban growth has expanded into newly annexed areas to the west, east, and south. Various water bodies, including the Green River, Mill Creek, Bowman Creek, Olson Creek, Mill Pond, and White Lake, have significantly influenced Auburn’s spatial development. The wetlands along much of Mill Creek have limited extensive urbanization in that area, though some industrial properties have been established.
Among Auburn’s water features, White Lake and West Auburn Lake are the only naturally occurring lakes or ponds. West Auburn Lake, acquired by the city within the past decade, offers recreational opportunities within a highly urbanized setting. In contrast, White Lake, located south of Highway 18, remains privately owned and inaccessible to the public, preserving its natural state.
Climate
Nestled within a temperate maritime climate, Auburn experiences a nuanced interplay of meteorological forces, shaping its seasonal identity with distinct variability.
Summer (June to August) brings warmth to the region, with temperatures typically ranging from 75°F to 85°F (24°C to 29°C). While the season is mostly dry, occasional light rainfall may punctuate the otherwise arid conditions.
Autumn (September to November) ushers in cooler temperatures, settling between 60°F and 70°F (15°C to 24°C). During this period, Auburn transitions to a wetter climate, with more frequent showers that cast the familiar Pacific Northwest veil of precipitation over the landscape.
Winter (December to February) sees temperatures dip to an average of 45°F to 50°F (7°C to 10°C). While cold air intrusions can briefly push temperatures below freezing, such occurrences are typically short-lived. Precipitation increases during the winter months, and although snowfall is rare, it occasionally blankets the city. When snow is accompanied by freezing rain, it can significantly impact local traffic.
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Spring (March to May) signals a gradual warming, with temperatures rising to a moderate 55°F to 65°F (13°C to 18°C). Intermittent showers persist, remnants of the previous seasons’ precipitation, as the landscape undergoes its annual rejuvenation.
Auburn receives approximately 37 inches (940 mm) of annual precipitation, evenly distributed across the seasons, reflecting its maritime influence. The city’s proximity to the Pacific Ocean helps moderate extreme temperatures, tempering both the summer heat and winter chill.
Auburn’s diverse topography, with its varying elevations and water bodies like the Green River, fosters the development of microclimates within the city. These microclimates create subtle weather patterns and temperature differences, adding richness and complexity to Auburn’s overall climate.
DEMOGRAPHIC CONTEXT
Auburn, Washington, is a vibrant city with a diverse demographic profile. Based on the latest U.S. Census data, here is a detailed breakdown of key demographic aspects:
Population Size & Growth
Auburn is a mid-sized city in King County, Washington, with a population of approximately 90,096 as of July 2023. The city has experienced steady growth, reflecting broader trends in the Seattle metropolitan area. Since 2000, Auburn’s population has increased by 54.4%. With a population density of about 3,046 people per square mile, the city continues to see urban development and residential expansion.
In recent years, Auburn’s growth rate has moderated. Between 2020 and 2023, the population grew at an annual rate of about 0.99%. Looking ahead, the growth rate is projected to decelerate to approximately 0.31% annually from 2023 to 2028.
Employment
Auburn’s economy is diverse, with key industries including retail, manufacturing, healthcare, education, and various service sectors. Major employers in the city reflect this diversity. Among them are Boeing, which operates a significant aerospace manufacturing facility in Auburn, employing thousands of workers and playing a central role in the city’s industrial base. Multicare Health System and CHI Franciscan Health are also significant employers, providing a wide range of healthcare services to the region.
In addition to these, The Muckleshoot Indian Tribe is a major contributor to the local economy, not only through its government operations but also through its enterprises, such as the Muckleshoot Casino and Muckleshoot Bingo. Auburn School District is another key employer, reflecting the city’s strong focus on education.
Many residents of Auburn work within the city, benefiting from the presence of these major employers. However, a significant portion of the population commutes to nearby employment hubs such as Seattle, Tacoma, and Bellevue, which are easily accessible due to Auburn’s strategic location and robust transportation infrastructure, including major highways and rail services.
Auburn’s accessibility and central location make it a vital center for both residential living and employment opportunities within the Puget Sound region. The combination of local employment and the city’s position within a broader regional economy enhances Auburn’s role as both a residential community and a significant economic hub.
Race and Ethnicity
Auburn stands out for its notable ethnic and racial diversity, which is somewhat unique compared to other cities in Washington State. According to recent data, the racial composition of Auburn’s population is approximately 59.7% White, 11.6% Asian, 7.3% Black or African American, 2.1% American Indian or Alaska Native, and 2.8% Native Hawaiian or other Pacific Islander. Additionally, 16.5% of the population identifies as Hispanic or Latino. The city’s diversity is further highlighted by the fact that 21.4% of Auburn’s residents are foreign-born, a figure that exceeds the state average.
Auburn’s significant Asian and Hispanic or Latino populations are particularly noteworthy. While many cities in Washington have diverse communities, Auburn’s proportion of Asian residents stands out, reflecting broader trends in the Seattle-Tacoma-Bellevue metropolitan area, yet distinguishing itself from smaller or less urban areas in the state.
Moreover, Auburn is home to a significant population of Marshall Islanders, who have migrated to the United States primarily under the Compact of Free Association (COFA). This treaty allows citizens of the Marshall Islands, along with those from Micronesia and Palau, to live and work in the U.S. without visas. Auburn has become a notable center for Marshallese migrants, following Arkansas, which hosts the largest population on the mainland.
The migration of Marshallese to the U.S. has been driven
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by various factors, including economic opportunities and better access to healthcare. Additionally, many Marshallese migrate due to environmental degradation and health issues linked to the legacy of nuclear testing conducted by the United States in the Marshall Islands during the mid-20th century. This has resulted in health concerns such as cancer and other chronic diseases, prompting many to seek better healthcare in the U.S.
In Auburn, the Marshallese community has maintained strong cultural ties, frequently gathering in local churches and community events to support one another and preserve their traditions. This tight-knit community aspect is crucial as they navigate the challenges of migration, including language barriers and economic adjustments.
Auburn’s demographic diversity is rooted in its historical development as a key agricultural and industrial hub, which has attracted various immigrant communities over the years. This has created a rich cultural fabric that continues to shape the city’s identity today.
Languages
While English is the primary language spoken in Auburn, with 69.36% of residents speaking it exclusively, the city’s cultural diversity means that a variety of languages can be heard in everyday life. Spanish is the most common non-English language, spoken by 13.28% of the population. Additionally, other languages, including various Slavic languages, contribute to the city’s linguistic landscape.
The Auburn School District reflects this diversity, with over 80 languages spoken in the homes of its students. More than 40% of students use multiple languages in their daily lives. The district’s Multilingual Learner Program is designed to help students develop English language skills while also promoting the preservation of their home languages. Although the exact number of students speaking each language at home is not disclosed due to privacy concerns, the fact that the district’s Multilingual Learners department serves students from over 80 different language backgrounds illustrates the rich tapestry of languages spoken in Auburn.
Moreover, the district offers translation services for a variety of languages, including Afrikaans, Burmese, Hmong, Marshallese, Russian, Spanish, and Ukrainian. While this is not an exhaustive list, it highlights some of the prominent languages spoken in the community alongside English.
These languages likely represent just a portion of Auburn’s diverse linguistic landscape. However, by examining the languages supported by the school
district, we can gain insight into the multilingual character of the city.
Age
Auburn has a diverse age distribution among its population of approximately 90,096 people. The largest age group consists of residents aged 35 to 54, comprising about 27% of the population. This is followed by children and teenagers (ages 5 to 17), who make up roughly 18%. Young adults aged 25 to 34 represent around 15%, while those in the 55 to 64 age bracket account for approximately 12%. The senior population (over 65 years) comprises about 13% of the population, and those aged 18 to 24 constitute around 9%. The youngest segment, children under 5 years old, represents about 7% of Auburn’s population.
Recent trends in Auburn’s age distribution have shown relative stability across the different age groups. However, there has been a slight increase in the senior population, mirroring broader national trends of an aging demographic. This shift suggests a growing need for services and amenities that cater to older residents, while also maintaining support for families and younger adults.
GenderAuburn’s gender distribution is close to an even split between males and females, with a slightly higher percentage of males. According to the latest U.S. Census Bureau data, Auburn has approximately 46,922 males (52.1%) and 43,174 females (47.9%), indicating a clear majority of males over females in the city. This trend is somewhat uncommon in many parts of the United States, where women typically outnumber men.
Income
Auburn’s residents represent a wide range of income levels, reflecting the diverse economic profiles of its neighborhoods and communities. While some areas of Auburn are affluent, others have a higher percentage of lower-income households. The city’s economic structure includes a mix of blue-collar and white-collar workers, contributing to this diversity. As of the most recent data, the median household income in Auburn is approximately $83,881, with a per capita income around $41,440. The city’s poverty rate is 10.7%, and 14.9% of children live below the poverty line. Housing is a significant aspect of the local economy, with the median home value around $561,000 (per 2024 Zillow Home Value Index). This reflects a community with varied economic experiences, encompassing both substantial earning potential and areas in need of economic support.
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Education
Auburn is served by a variety of educational institutions, including both public and private schools. The Auburn School District is a key provider, operating numerous elementary, middle, and high schools, such as Auburn High School, Auburn Riverside High School, and Auburn Mountainview High School, along with various elementary and middle schools spread throughout the city. The district serves a substantial student population, with an enrollment of over 17,000 students.
Private education options in Auburn include Valley Christian School, which offers a Christian-centered education from preschool through 12th grade, and Auburn Adventist Academy, a Seventh-day Adventist high school. Additionally, the Muckleshoot Tribal School, managed by the Muckleshoot Indian Tribe, provides education from kindergarten through high school, addressing the specific needs of its tribal community.
Green River College is a notable public institution in the area, offering a range of associate degrees, certificates, and transfer programs. Collectively, these educational institutions contribute to the diverse and comprehensive learning environment in Auburn.
Housing
Auburn’s housing market is diverse, featuring a mix of single-family homes, apartments, and affordable housing options. As of mid-2024, the median home price in Auburn is approximately $621,000 (per 2024 Zillow Home Value Index), reflecting a 5.5% increase over the past year. The market remains highly competitive, with homes typically selling within a week of listing. Rental prices are also significant, with median rents around $1,919 per month. The city supports a range of affordable housing programs through the King County Housing Authority, including Section 8 vouchers and subsidized housing designed for low-income families, seniors, and individuals with disabilities.
This varied housing landscape influences Auburn’s parks and recreation system by increasing the demand for accessible and inclusive recreational spaces. The presence of affordable housing communities, such as Burndale Homes and Firwood Circle, which offer on-site services and are located near parks, highlights the importance of maintaining and expanding public recreational facilities. These parks provide essential amenities and green spaces for residents of all income levels, promoting community well-being and environmental sustainability.
Commuters
Auburn is often considered a commuter city due to its strategic location in the Puget Sound region and its proximity to major employment centers such as Seattle, Tacoma, and Bellevue. The city’s population fluctuates during the day as residents commute to jobs in these areas. The average one-way commute time for Auburn residents is approximately 31.6 minutes, covering an average distance of around 10.75 miles.
Here’s an overview of key cities to which Auburn residents commonly commute for work and the respective employment opportunities:
1. Tacoma is a major city in the Puget Sound region offering a wide range of employment opportunities across various industries.
2. As a neighboring city, Puyallup provides job options in retail, healthcare, education, and other sectors.
3. Although farther from Auburn, some residents commute to Seattle for jobs in tech, finance, healthcare, and various other industries.
4. Located to the north, Kent offers job opportunities in logistics, manufacturing, and retail.
5. Also north of Auburn, Renton is home to companies in aerospace, technology, healthcare, and other industries.
6. To the west, Federal Way has a diverse job market, including opportunities in retail, healthcare, and education.
System Inventory
Auburn takes great pride in its expansive parks system, designed to cater to a variety of recreational interests while preserving the natural beauty of the area. Among the many parks throughout the city, Les Gove Park stands out as a tranquil oasis in downtown Auburn, offering verdant green spaces, meandering pathways, and designated picnic areas, providing a peaceful retreat amid the urban bustle. Game Farm Park, a premier destination for sports enthusiasts and families alike, spans 80 acres and features sports fields for soccer, baseball, and softball, along with tennis courts, a skate park, and playgrounds. Isaac Evans Park, located along the scenic Green River, delights visitors with riverside trails, scenic viewpoints, and inviting picnic spots, allowing nature lovers to immerse themselves in a serene environment. Brannan Park, near the Green River, is a picturesque spot for outdoor recreation, offering walking trails, picnic shelters, and a boat launch for water enthusiasts. For those seeking a more botanical experience, Soos Creek Botanical
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Garden (privately owned) showcases a stunning array of native and exotic flora, inviting visitors to explore its themed gardens, winding paths, and tranquil ponds.
Auburn’s park system extends beyond recreation to include educational and environmental initiatives. Auburn Environmental Park combines recreational amenities with interactive exhibits and interpretive trails, serving as a platform for environmental education and awareness. These programs enrich the community’s understanding of local ecosystems and foster a deeper appreciation for the natural world. In essence, Auburn’s parks system is more than just a collection of green spaces; it’s a vibrant tapestry of recreational opportunities, natural wonders, and educational endeavors that enrich the lives of residents and visitors alike.
Auburn prioritizes the development of park spaces that align with the community’s values. To determine what improvements are needed or desired, the first step is to catalog and assess the current conditions of all the city’s existing parks, open spaces, and trail resources. This process involves identifying the assets that Auburn currently owns, manages, and maintains, and evaluating them to ensure they meet or exceed park development standards, safety criteria, liability and risk concerns, recreational trends, aesthetic appeal (placemaking), and landscape and climate change resiliency objectives.
To effectively plan for budgeting and resource allocation based on each park’s level of service or area of influence, parks are also assessed to determine the individual contributions they provide to the community.
Physical & Mental Health: Assessing a park by expected or projected use helps visitors know what to expect and allows park managers to establish rules and guidelines that ensure visitors’ safety and preserve the park’s resources.
Ecological Diversity: Parks often vary in terms of their ecosystems and biodiversity. Assessing parks based on their ecological features can aid in understanding and protecting these unique natural environments.
Cultural and Historical Significance: Some parks are often assessed based on their cultural or historical importance. These designations help preserve and showcase sites of cultural heritage, such as historical landmarks, archaeological sites, and areas with indigenous significance.
Tourism & Branding Benefits: Classifying parks can aid in promoting tourism and attracting visitors. Visitors often have varying interests, so categorizing parks allows tourism agencies to target specific audiences with appropriate marketing strategies.
Educational and Interpretive Benefits: Classification helps in developing educational programs and interpretive materials tailored to the park’s unique characteristics. This enhances visitor experiences by providing relevant information about the park’s natural, cultural, and historical attributes.
Research and Conservation Planning: Scientists and conservationists can use classification systems to prioritize research efforts and develop conservation plans. By understanding the different types of parks and their specific features, they can focus on areas that are most in need of study and protection.
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Categorized Recreation
Programs
The City of Auburn offers a wide range of recreation programs designed to meet the diverse interests and needs of its community members. These programs, categorized by age group and activity type, provide opportunities for fitness, personal growth, social engagement, and community involvement.:
Fitness Programs:
• Fitness memberships
• Fitness classes
• Open gym sessions
• Equipment and weight room access at the Auburn Community & Event Center
Preschool Programs (Ages 1-5):
• Indoor playground
• Classes and programs
• Birthday party packages
• Youth Programs (Ages 6-12):
• Rec n Roll (mobile recreation unit)
• Summer camps
• Classes and programs
• Family programs
• Birthday party packages
Teen Programs (Ages 13-18):
• The REC Teen Center
• Classes and programs
• Camps
• MakerSpace
Adult Programs (Ages 18+):
• Art classes
• MakerSpace
• Fitness classes
• Open gym
Senior Programs (Ages 50+):
• Senior Activity Center
• Fitness classes
• Social activities
• Educational workshops
Family Programs:
• Various family-oriented activities and events
Specialized Recreation:
• Programs for individuals with disabilities
• Sports & Athletics:
• Youth leagues
• Youth sports classes
Community Events and Special
Programs:
• Auburn Farmers Market (June-September at Les Gove Park)
• National Recreation and Park Month events Various special events throughout the year
Cultural Arts Programs:
• Performing arts
• Public art installations
Outdoor Recreation:
• MTB Trailblazers biking program
• Hiking and trail activities
Volunteer Opportunities:
• Community service and volunteer programs
Facility Rentals:
• Athletic fields
• Campground
• Meeting and banquet rooms
• Picnic shelters
Overall, the City of Auburn’s diverse array of programs and services supports a healthy, active, and engaged community and highlights Auburn’s commitment to providing diverse and inclusive recreational opportunities for its residents, promoting community well-being and engagement
Existing Parks & Recreation
Facilities
The City of Auburn offers a wide array of recreational opportunities and park spaces for both residents and visitors, with a strong emphasis on developing park spaces that align with the community’s values. Auburn’s park system currently encompasses approximately 980 acres of mostly developed or partially developed parklands, along with non-contiguous trail segments along the White River that aim to connect to the downtown core.
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To identify necessary or desired improvements, the City first catalogs and assesses the current conditions of all its existing parks, open spaces, and trail resources. This assessment process involves identifying and evaluating the assets that the City of Auburn owns, manages, and maintains, ensuring they meet or exceed park development standards, safety criteria, and liability and risk concerns. Additionally, this evaluation addresses recreational trends, enhances aesthetic appeal through placemaking, and supports landscape resiliency.
Assessment Methodology
Modeled after RCO’s suggested Level-of-Service (LOS) grading system and NRPA’s “system level” approach, a custom assessment methodology was used in this study to inventory and assess the current range of recreation and open space opportunities within any particular area. The methodology used in this report is ranked on a scale of 5 to 0, from high to low, across a number of different criteria, including:
Location
Park Classification
Facility Age
History
Funding Encumbrances or Regulatory Framework
Condition of Individual Components & Amenities
Maintenance / Known Issues
Please note that park areas developed by private entities e.g., a HOA, or and public or private schools were not included on the overall City Park map, therefore they were not part of the assessment procedure.
Process
The following steps were executed to capture the institutional knowledge of City staff, while allowing the consultant team to assess each park and trail component.
1. Inventory and build maps of the existing parks.
2. Develop a detailed inventory of each park from the previous planning process and geospatial sources, including encumbrances research and park / funding histories.
3. Distribute inventory information to City for review.
Park Classifications
Classification systems provide a standardized method to develop, organize, operate, and manage parks based on certain criteria, which can include factors such as their size, ecological importance, recreational opportunities provided, historical or cultural significance, placemaking potential, economic development, and ability to support conservation & climate resiliency goals.
Washington State Parks & RCO use different classification definitions but are built on the same premise - consistent methodology is critical to best manage our public spaces and to ensure the public are active and able to enjoy a quality mix of structured and natural environments and all the benefits that they provide.
There are six basic park and greenspace facility types typically classified and utilized by municipalities the size of Auburn of which are currently exhibited:
Pocket Parks / Mini-Parks / Tot Lots
Pocket parks are very small and serve a limited radius (up to ¼-mile) from the site; they provide passive and play-oriented recreational opportunities. Examples of pocket parks can include a tot lot with play equipment such as a climber, slide or swings; a viewpoint; or waterfront access areas such as at street ends.
Table 2-1: Assessment Rankings
Ranking
(High
to Low)
Description
0 n/a - Not Present
1 Major liability and structural failures present and imminent. Needs to be closed.
2 Condition is poor with major structural, cosmetic, maintenance, and liability issues observed.
3 Condition is moderate with some major cosmetic or maintenance issues that create minor liability concerns.
4 Condition is very nice with only minor cosmetic or maintenance issues observed.
5 Perfect condition with a long life cycle and no risk or liability issues.
Table 2-2: Park
Classifications
Key*Classification
C Community
N Neighborhood
O Natural Areas & Greenspaces (Open Space)
S Special Use Facilities
P Pocket Parks / Mini-Parks / Tot Lots
T Trails, Bikeways & Pathways
* to be used when referring to the parks system key map, Figure 2-1.
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A small urban plaza or civic recognition project may also be considered a pocket park. Parking is not often provided at pocket parks, although lighting may be used for security and safety.
Neighborhood (Local) Park
Generally considered the basic unit of traditional park systems, neighborhood or local parks are small park areas designed for unstructured play and limited active and passive recreation. They are generally up to around 5 acres in size, but can be larger depending on a variety of factors including neighborhood need, physical location and opportunity, and should meet a minimum size of 2 acre in size when possible.
Community Park
Larger multi-acre sites developed for organized play, contain a wider array of facilities and, as a result, appeal to a more diverse group of users. Community parks are generally 20 to 50 acres in size, meet a minimum size of 20 acres when possible and serve residents within a 1-mile radius of the site.
Natural Areas (Open Space)
Natural areas are those which are preserved to maintain the natural character of the site and are managed to protect valuable ecological systems, such as riparian corridors and wetlands, and to preserve native habitat and biodiversity. In managing for their ecological value, these natural areas may contain a diversity of native vegetation that provides fish and wildlife habitat and embodies the beauty and character of the local landscape. Low-impact activities, such as walking, nature observation, and fishing are allowed, where appropriate, and horseback riding is also permitted on certain sites.
Trails, Bikeways & Pathways
Trails are non-motorized transportation networks separated from roads. Trails can be developed to accommodate multiple uses or shared uses, such as pedestrians, in line skaters, bicyclists, and equestrians. Bikeways are different than trails in that their principal focus is on safe and efficient non-motorized transportation. Bikeways & pathways serve distinctly different user groups than trail users. For shared-use trails, it is important that the alignment and cross sections be designed with flexibility to accommodate higher speeds, passing zones and greater widths. Surfaces will vary with intended use and environmental considerations.
More information on the other classification types not used can be found in Appendix B.
Current Inventory
Over its 133-year history, Auburn, WA, has developed a robust park system under the guidance of its past and present Mayors and City Councils. The City has expanded its parkland through various means, including donations, dedications, and purchases. Each park undergoes regular evaluations and renovations to ensure they align with evolving recreational trends, aesthetic standards, safety protocols, and government regulations. To meet the needs of both current and future residents, Auburn must continue to acquire new parkland while also maintaining and enhancing its existing parks and facilities.
This section provides an overview of each park and open space, detailing the neighborhood it is located in, its year of establishment, classification, and acreage. As a prelude, the following table identifies the quantity and total acreage of the entire system, based on its classification.
Parks, Open Space & Special Use
Facilities
The core of Auburn, WA’s parks system is characterized by its diverse parklands, expansive open spaces, and specialized use facilities, all of which contribute to the community’s recreational and aesthetic needs.
Auburn’s parklands consist of a variety of mini-parks, neighborhood parks, community parks, open spaces, and special use facilities that provide residents with access to green spaces for leisure, sports, and recreational activities. These parks are equipped with amenities such as playgrounds, sports fields, picnic areas, and walking trails, ensuring they cater to the needs of individuals and families alike. Open spaces offer residents opportunities for passive recreation,
such as hiking, bird-watching, and enjoying the scenic beauty of nature. The city’s commitment to maintaining these open spaces ensures that natural resources are protected and accessible to the community.
Table 2-3: Existing Parks & Open Spaces
Key Classification Count Acres
C Community 14 283.30
N Neighborhood 10 51.23
O Open Space 6 321.42
S Special Use Facilities 14 307.69
P Tot-Lots 13 16.71
Totals:57 980.35*
* does not include other non-park related properties, or other landbanked right-of-ways and easements.
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Table 2-4: Existing Parks Inventory
Key Name Classification Acres Rating
C1 104TH AVE SE PARK COMMUNITY 13.22 3
C2 BRANNAN PARK COMMUNITY 23.55 3.5
C3 FULMER PARK COMMUNITY 4.88 4
C4 GAME FARM PARK COMMUNITY 56.94 4
C5 GAME FARM WILDERNESS COMMUNITY 48.59 3
C6 GSA PARK COMMUNITY 6.34 3
C7 ISAAC EVANS PARK COMMUNITY 17.94 3.75
C8 JACOBSEN TREE FARM COMMUNITY 29.34 3
C9 LEA HILL PARK COMMUNITY 5.32 3.5
C10 LES GOVE PARK COMMUNITY 27.83 4.5
C11 MILL POND PARK COMMUNITY 4.85 3
C12 ROEGNER PARK COMMUNITY 21.79 4
C13 SUNSET PARK COMMUNITY 15.46 3
C14 VETERANS MEMORIAL PARK COMMUNITY 7.25 3
Subototals 14 283.31
N1 AUBURNDALE 2 PARK NEIGHBORHOOD 9.39 3
N10 SHAUGHNESSY PARK NEIGHBORHOOD 3.32 3
N2 AUBURNDALE PARK NEIGHBORHOOD 10.14 4
N3 CAMERON PARK NEIGHBORHOOD 3.79 3
N4 CEDAR LANES PARK NEIGHBORHOOD 8.38 3.5
N5 EVERGREEN PARK NEIGHBORHOOD 2.74 3
N6 LAKELAND HILLS PARK NEIGHBORHOOD 5.15 3
N7 RIVERPOINT PARK NEIGHBORHOOD 2.65 3
N8 ROTARY PARK NEIGHBORHOOD 3.89 3
N9 SCOOTIE BROWN PARK NEIGHBORHOOD 1.77 3
Subototals 10 51.23
O1 AUBURN ENVIRONMENTAL PARK OPEN SPACE OPEN SPACE 180.17 3
O2 CLARK PROPERTY OPEN SPACE OPEN SPACE 27.42 3
O3 GAME FARM OPEN SPACE OPEN SPACE 22.67 3
O4 GOLF COURSE OPEN SPACE OPEN SPACE 40.97 3
O5 LAKELAND HILLS NATURE AREA OPEN SPACE 41.02 3
O6 LEWIS LAKE NATURE PARK OPEN SPACE 9.17 3
Subototal:s 6 321.42
P1 21ST STREET PLAYGROUND POCKET PARK / MINI-PARK / TOT LOT 0.21 3
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Table 2-4: Existing Parks Inventory
P11 TRAIL RUN PARK POCKET PARK / MINI-PARK / TOT LOT 1.73 3
P12 TERMINAL PARK POCKET PARK / MINI-PARK / TOT LOT 1.16 3
P13 VILLAGE SQUARE PARK POCKET PARK / MINI-PARK / TOT LOT 0.97 3
P2 BALLARD PARK POCKET PARK / MINI-PARK / TOT LOT 0.64 3
P3 DOROTHY BOTHELL PARK POCKET PARK / MINI-PARK / TOT LOT 4.83 3
P4 DYKSTRA PARK POCKET PARK / MINI-PARK / TOT LOT 1.73 2
P5 EDGEVIEW PARK POCKET PARK / MINI-PARK / TOT LOT 0.80 3
P6 FOREST VILLA TOT LOT POCKET PARK / MINI-PARK / TOT LOT 0.24 3
P7 GAINES PARK POCKET PARK / MINI-PARK / TOT LOT 1.34 3
P8 INDIAN TOM PARK POCKET PARK / MINI-PARK / TOT LOT 0.41 3
P9 JORNADA PARK POCKET PARK / MINI-PARK / TOT LOT 1.87 3
Subototal:s 13 16.71
S1 AUBURN ENVIRONMENTAL PARK SPECIAL USE AREA 18.81 3
S10 MARY OLSON FARM SPECIAL USE AREA 68.78 3
S11 MOUNTAIN VIEW CEMETERY SPECIAL USE AREA 50.29 3
S12 PIONEER CEMETERY SPECIAL USE AREA 0.75 3
S13 PLAZA PARK SPECIAL USE AREA 0.15 3
S14 SLAUGHTER MEMORIAL SPECIAL USE AREA 0.15 3
S2 AUBURN GOLF COURSE SPECIAL USE AREA 150.52 3.5
S3 B STREET PLAZA SPECIAL USE AREA 0.13 3
S4 BICENTENNIAL PARK SPECIAL USE AREA 1.34 3
S5 CENTENNIAL VIEWPOINT SPECIAL USE AREA 0.50 3
S6 CLARK PLAZA SPECIAL USE AREA 0.17 3
S7 COMMUNITY GARDEN SPECIAL USE AREA 1.84 3
S8 FENSTER PROPERTY SPECIAL USE AREA 12.72 3
S9 LEA HILL TENNIS COURTS SPECIAL USE AREA 1.54 3.5
Subototal:s 14 307.69
Totals:57 980.35
* does not include other non-park related properties, or other landbanked right-of-ways and easements.
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21st Street Playground
405 21st Street SE
0.17 acres – Dedicated in 2006
Classification: Pocket Park
Status: Developed
This small pocket park is situated adjacent to a City stormwater detention pond. Park amenities include a playground, picnic table, and benches. The park is on a short list of parks that need to go through the naming process.
Auburndale Park
31700 108th ST SE
9.74 acres –Transferred in 2003
Classification: Neighborhood Park
Status: Developed
Auburndale Park falls into the neighborhood park category, and like many in this classification, is underused. The City recently constructed an entrance on the east side of the park in order to provide better access to the surrounding neighborhoods in an effort to increase use in the park. The main feature of the park is a natural wooded area with a loop trail. There is a play area, picnic tables and barbecue grill.
Auburndale Park II
29725 118th ST SE
9.34 acres – Transferred in 2003
Classification: Neighborhood Park
Status: Undeveloped
Auburndale II is an undeveloped park with a mix of native over-story, and an under-story that is dominated by Himalayan blackberry and scotch b room. A future trail connecting Lea Hill to the valley floor is being considered, which would likely run east to west along the northern boundary of the park.
Ballard Park
1612 37th Way SE
0.68 acres - Dedicated in 1966
Classification: Pocket Park
Status: Developed
Ballard Park is a neighborhood park with a distinctive stone picnic shelter. In 2003, a new playground and irrigation system was installed, as well as pathways and an entrance gate. Two new tables and benches were installed and a new concrete fence constructed at that same time. Ballard Park is situated high above the White River and benefits from an appealing view of the river. There is not direct river access.
P1
N1
N1
P2
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Cameron Park
3727 Lemon Tree Lane
3.85 acres – Dedicated in 1989
Classification: Neighborhood Park
Status: Developed
Cameron Park is a nestled between two rows of houses, east of the Muckleshoot Indian Reservation. The park has two entrances, one near the intersection of Lemon Tree Lane SE and Academy Drive SE, and the other off of Lemon Tree Lane SE. Visitors can take an asphalt path into the heart of the park that winds through a large grassy open field, planted with occasional trees. A colorful play structure is located in the northeast corner of the park. Picnic tables next to the playground provide seating for picnics or for caretakers of young children. The layout of the path provides a good opportunity to integrate the play area into the rest of the park using landscaping to create a more lush and cohesive setting. A limiting factor in achieving this is the utility easement of Northwest Pipeline, which reduces the ability to landscape and improve some parts of the park.
Cedar Lanes Park
1002 25th Street SE
8.36 acres – Dedicated in 1969
Classification: Neighborhood Park
Status: Developed
Cedar Lanes Park is a unique combination of native woodland, well-kept lawn, and a formal playground. The forested area contains a mix of western red cedar, big leaf maple, and cottonwood trees. The park includes a bike skills park with drop zones, a flow track and other features that was constructed in 2023. In 2024 an asphalt pump track, new restroom, and storage/shelter were constructed.
Dorothy Bothell Park
1087 Evergreen Way SE
4.35 acres – Dedicated in 2009
Classification: Pocket Park
Status: Developed
Located adjacent to the Lakeland Hill Community Center, Dorothy Bothell Park is a an attractive neighborhood park in Lakeland Hills. Park amenities include a playground, climbing boulders, and a trail that connects with other trails beyond the park. Dinosaur bones have been buried in the play area for the kids to uncover.
N3
N4
P3
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Dykstra Park
1487 22nd Street NE
1.67 acres – Dedicated in 1979
Classification: Neighborhood Park
Status: Developed
Dykstra Park is a small, attractive park along the Green River. Its linkage to the larger Isaac Evans Park via a suspension bridge increases its value to the community. The bridge was substantially repaired in 2002, with major structural repair completed on the north end of the structure.
Dykstra is primarily a playground neighborhood park, and its proximity to the river also makes it popular with walkers and wildlife lovers. A new playground was installed in April 2015 made possible by a Dr. Pepper/ Kaboom! Playground grant. The playground was constructed using volunteer labor during the City’s annual Clean Sweep volunteer event. In addition to the three new playground pieces, approximately 150 cubic yards of playground fiber wood chips were placed within the play area.
Forest Villa Park
1647 Fir St. SE
0.23 acres – Dedicated in 1971
Classification: Pocket Park
Status: Developed
The Forest Villa Park is located on a single lot in a single family residential neighborhood. The play structure is the primary focus of the park.
Gaines Park
1008 Pike Street NW
1.33 acres – Dedicated in 1999
Classification: Neighborhood Park
Status: Developed
Gaines Park is located in the Vistaria/Sunning Hills residential area. This park is a joint project between the City’s Storm Water Division and Parks and Recreation. There is a short section of boardwalk through a wetland area on the east edge of the park. The park has a picnic area, play area, ½ basketball court, and a walking trail through the park.
Indian Tom Park
1316 6th Street NE
0.42 acres – Deeded to the City in 1979 from King County
Classification: Pocket Park
Status: Developed
This small park is located on a single lot in the middle of a residential block. A playground was installed in April 2014 made possible by a Dr. Pepper/ Kaboom! Playground grant. The playground was constructed using volunteer labor at the City’s annual Clean Sweep volunteer event.
P4
P6
P7
P8
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Jornada Park
1433 U Court. NW
1.89 acres – Dedicated in 2004
Classification: Pocket Park
Status: Developed
This small park is located on a single lot in the middle of a residential block. It contains a play structure, climbing wall, picnic tables and a short loop trail.
Evergreen Park
5480 Charlotte Ave. SE
2.73 acres – Dedicated in 2014
Classification:Neighborhood Park
Status: Developed
This park was constructed to meet level of service needs for a neighborhood park within in newly developed Kersey III neighborhood. A paved walking trail with picnic tables and benches connects the ball field, to the playground and the basketball court.
Edge View Park
1433 U Court. NW
0.79 acres – Dedicated in 2014
Classification: Pocket Park
Status: Developed
This park has similar features and amenities as nearby Evergreen Park, but on a smaller scale.
Lakeland Hills Park
1401 Evergreen Way SE
5.06 acres – Dedicated in 1993
Classification: Neighborhood Park
Status: Developed
Lakeland Hills Park serves the Lakeland development in south Auburn. This five-acre park is nestled into a wooded hillside, where many native trees were saved and integrated into the design of the park. The park provides active recreation facilities at a neighborhood scale, and also a paved trail around the circumference of the park. Restroom facilities were built in this park and share a common structure with some water utility equipment.
P9
N5
N15
O5
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Lea Hill Tennis Courts
32121 105th Pl. SE.
1.18 acres
Classification: Special Use Facility
Status: Developed
The Lea Hill Tennis Court has a unique location on top of a City of Auburn water reservoir. Originally, two courts were constructed, but one of these is now being used as a basketball court. The court is on Lea Hill, surrounded by an adjacent apartment complex. Standing water is evident in several low areas.
Riverpoint Park
1450 32nd St. NE
3.8 acres – Dedicated in 2005
Classification: Neighborhood Park
Status: Developed
Built in 2005, the park is adjacent to the Green River and provides an access point to the Green River Trail.
Trail Run
5014 Pike Street NE
1.76 acres – Dedicated in 2015
Classification: Neighborhood Park
Status: Developed
This pocket neighborhood park located is along the Green River near the northern City Limits. Visitors can gain direct access from the park to a bridge across the river that connects to the City of Kent’s S. 277th Street Trail (1.1 miles). The future Green River Trail will run along the eastern boundary of the park if the trail is ever extended through Auburn.
Rotary Park
2635 Alpine Street SE
3.89 acres – Dedicated in 1966
Classification: Neighborhood Park
Status: Developed
Rotary Park was developed in 1966 by the Auburn Rotary Club. At first glance the playground is the only apparent facility here. The rolling topography, unusual shape of the site and the location of conifers obscure the presence of the other major recreation facilities, including the basketball court and informal softball field. An additional acre, and a half-court basketball was added to Rotary Park in connection with the development of the Riverwalk neighborhood.
S9
N7
N18
N8
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Scootie Brown Park
1403 Henry Road NE
1.68 acres – Dedicated in 1973
Classification: Neighborhood Park
Status: Developed
The park is located at a junction between commercial and residential zones. Bounded on the north by 8th Street N.E., the park has a busy, open feel, with minimal landscaping. The City’s youth baseball programs use this park for practice.
Shaughnessy Park
3302 21st Street SE
3.46 acres – Dedicated in 1973
Classification: Neighborhood Park
Status: Developed
Shaughnessy Park is located in an attractive setting of mature Douglas Firs on a quiet residential street. Several recreational courts are located in close proximity to the street. An open play field with a backstop is in a corner of the park and is not readily apparent from other parts of the park and street. The adjacent residential neighbors have erected fences between their backyards and the playing field. Recent park improvements were made possible by a Neighborhood Block Grant in the amount of $50,000.
Terminal Park
1292 C Street SE
1.22 acres – Dedicated in 1913
Classification: Neighborhood Park
Status: Developed
Terminal Park is a small park along a quiet residential street. The newly renovated playground at the center of the park is the focal point here. The remainder of the park contains a slightly rolling lawn, with mature trees scattered throughout. Improved irrigation has also been added. In 2013 broken patio pavers were replaced with colored concrete in the patio adjacent to the playground.
Village Square
12111 SE 310th Street
1.10 acres – Transferred in 2007
Classification: Pocket Park
Status: Developed
This is a small pocket park is located in the middle of an apartment complex. The park has a short loop trail with a small grassy area in the middle. Access to the park can either be gained from the adjacent apartment complex or from SE 310th Street.
N20
N21
N22
N23
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104th Ave SE
31495 104th Ave. SE
14.73 acres – Transferred in 2006
Classification: Community Park
Status: Undeveloped
This undeveloped riverside property is comprised of two parcels along the Green River. A nice sandy beach along the Green River is popular for swimmers in the summer, and fishermen in the fall and winter months. Nearly two-thirds of the park is located within the 100-year floodplain so given the location of the park along the river and regulatory constraints, the park will likely be designed as a passive use nature park.
Brannan Park
1019 28th St. NE
21.68 acres – Dedicated in 1973
Classification: Community Park
Status: Developed
Brannan Park contains one of Auburn’s most heavily used sports complexes. The City sponsors many sports events at Brannan Park; Cascade Middle School users and a variety of organizations – youth soccer leagues, and Little League - also use the playing fields extensively. Brannan Park is on a flat, open site, with the Green River forming the park’s eastern boundary. The remaining sides are bounded by residential housing to the north and west, and Cascade Middle School to the south.
Fulmer Park
1005 5th Street NE
5.04 acres – Dedicated in 1979
Classification: Community Park
Status: Developed
Fulmer Park is primarily an active sports facility. In 2015 an undeveloped area on the north side of the park was bladed, all of the blackberry bushes were removed, and a new perimeter fence was installed. New irrigation, perimeter landscaping, and grass seed was added in 2014. New backstops, fencing, dugouts and drinking fountains, as well as scorekeeper tables, were added to the park in 1998. A new playground was installed in 2023.
C1
C2
C3
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Game Farm Park
3030 R ST SE
57.20 acres – Dedicated in 1988
Classification: Community Park
Status: Developed
Game Farm Park continues to be one of the largest and most frequented parks in Auburn. The park contains a wide variety of facilities for organized sports activities as well as a distinctive natural setting. The hillside backdrop and the White River along its southern edge create an intimate setting for park for users to enjoy. The park with its many courts, fields and picnic facilities is heavily used. Game Farm Park was dedicated in 1988 and exhibits many successful design features. Designing and building the park in one phase resulted in functional architectural features and site layout. Passive uses such as trails or open grassy slopes are located where the park abuts residences. Good pedestrian access is available to the surrounding neighborhood at several points along the park’s perimeter. A trail head off of Forest Ridge Drive SE provides access to a relatively unimproved gravel trail along the river in the eastern portion of the park. A pedestrian bridge was constructed in 2024 connecting the two Game Farm parks across the White River.
Game Farm Wilderness Park
2407 Stuck River Dr. SE 48.50acres –
Dedicated in 1989
Classification: Community Park
Status: Developed
Game Farm Wilderness Park emphasizes a connection between park users and the natural environment. It has limited development and has preserved most of the native woodland along the White River. The White River Trail continues along the river on the north side of the park from Kersey Way beyond the east end of the park. The park is designed for both overnight and daytime visitors. The camping area is designed to accommodate recreation vehicles, providing each unit with water and power hook-ups. An 18-hole disc golf course is located in the wooded area between the campground and White River.
GSA Park
413 15th St. SW
5.31 acres – Dedicated in 1966
Classification: Community Park
Status: Developed
The land for GSA Park was donated to the City by the U.S. General Services Administration. Its location in a heavily trafficked industrial zone has resulted in an atypical park setting. Currently the park has two youth softball/baseball fields, a parks maintenance building, and dugouts. New dugout covers were recently added, made possible by donations from Auburn Little League. A greenhouse is located on the property near the maintenance that is used by the City’s horticulturist to propagate new plants. The two ball fields were completed in 2003, including drinking fountains and an asphalt trail to the ball fields.
C4
C5
C6
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Isaac Evans Park
29827 Green River Road SE
19.87 acres – Dedicated in 1989
Classification: Community Park
Status: Developed
Isaac Evans Park is a riverfront park providing valuable passive recreation opportunities for the citizens of Auburn. The park’s connection to Dykstra Park via the suspension bridge increases its accessibility to local residents and is an appealing feature for visitors. The pedestrian bridge may also accommodate future trail connections between the eastern and western sides of the river. A internal paved trail runs around the circumference of the park. The forested riparian area along the Green River remains in a natural condition with recent restoration plantings added to accommodate the Reddington Levee Setback project located across the river from the park. Scattered throughout the grassy space on the inside of the trail are clusters of picnic tables, a picnic shelter, restroom facilities, and playground equipment.
Jacobsen Tree Farm Park
29387 132nd Ave. SE
29.30 acres – Transferred in 2003
Classification: Community Park
Status: Undeveloped
The Jacobsen Tree Farm property is an undeveloped park located in the Lea Hill area of Auburn. The City went through a master planning process for the future park, which was completed in 2010. Future elements of the park include soccer fields, baseball fields, play grounds, and passive recreational opportunities. The park is adjacent to Arthur Jacobsen Elementary and Auburn Mountainview High School, and has magnificent views of Mount Rainier. A bond or levy will be needed in order to develop this large community park property.
Lea Hill Park
31693 124th Ave. SE
5.26 acres –Dedicated in 2013
Classification: Community Park
Status: Developed
Lea Hill Park is a community park that serves the Lea Hill neighborhood and is located adjacent to the Green River Community College Campus. Park amenities include a skate park, pervious walking pathways, a rentable picnic shelter, an amphitheater, baseball field, free game synthetic sport area, half basketball court, and a play area featuring a tractor and climbing toys. An ADA accessible restroom facility with two unisex bathrooms and drinking fountains was completed in the spring 2015.
C7
C8
C9
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Les Gove Park/Les Gove Community Campus
910 9th St. SE
26.07 acres –Dedicated in 1966
Classification: Community Park
Status: Developed
Les Gove Park is a recreational and educational facility serving the entire community. The Library, Parks and Recreation Administration Building, Community Center, Teen Center, Senior Center, the White River Valley Museum, and a variety of recreational features make Les Gove a very popular destination.
Mill Pond Park
4582 Mill Pond Dr. SE
4.20 acres – Dedicated in 1997
Classification: Community Park
Status: Developed
Mill Pond is unique in several ways. The park is a joint project between the Parks and Public Works Departments, the Auburn School District, and the developer of Lakeland Hills. All of these groups came together to create a park with a dual purpose: to provide a recreational experience in a natural setting, and to provide stormwater detention and filtering for a 400 acre area. The site includes a permanent pond, a grass-lined bio-swale that becomes a temporary pond during storms, a 1/4 mile paved trail around the circumference of the ponds, and a fishing dock. Fishing in the pond is limited to children under 15.
Roegner Park
601 Oravetz Road SE
19.22 acres – Dedicated in 1994
Classification: Community Park
Status: Developed
This community park is located along the banks of the White River, adjacent to Auburn Riverside High School. A trail system includes both hard and soft-surfaced sections that meet the needs of many different users, including equestrians from the near- by Hidden Valley neighborhood. Trail construction began in 1997 from the east side of Roegner Park to Kersey Way, and continuing east along the river to Game Farm Wilderness Park. An approximate ½- acre off-leash fenced dog park is located near the trail, and can be easily accessed from the parking area off of Oravitz Road. Commissioned artwork for the park includes a uniquely designed bench with a salmon motif, placed to allow views of the river.
C10
C11
C12
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Sunset Park
1420 69th St. SE
15.15 acres – Dedicated in 2003
Classification: Community Park
Status: Developed
Sunset Park was developed by the developer in Lakeland Hills. It is unique in several ways. The community park serves the Lakeland Hills neighborhood but also the community. The site includes a picnic shelter, two youth baseball/softball fields, trails, basketball court and skate park.
Veterans Memorial Park
405 E St. NE
7.67 acres – Dedicated in 1926
Classification: Community Park
Status: Developed
Veteran’s Memorial Park, formerly City Park, is a popular community park located close to downtown Auburn and adjacent to Auburn High School’s Memorial Stadium. The park is distinctive for its Veterans Memorial structure, shady woods and underlying expanse of green lawn. The Veterans Memorial structure was funded with donations and fund-raising events by local veterans groups. Its design and construction were accomplished with use of volunteer labor.
C13
C14
Special use facilities include unique recreational and cultural amenities that serve specific community interests. This includes the Auburn Golf Course, the White River Valley Museum, and various sports complexes and community centers, all enhancing the quality of life for Auburn residents.
Trails, Bikeways & Pathways
Auburn’s parks system is designed to offer a balanced mix of recreational opportunities, natural preservation, and specialized facilities, which fosters a vibrant and active community. The city’s mild climate, combined with a strong culture of outdoor activities, significantly contributes to the high usage and support of its extensive trail network.
The city categorizes its trails into three primary types:
1. Recreational loop trails
2. Linear trails
3. Recreation/transportation trails.
Recreational loop trails are typically short paths that form loops within a single park or site. These trails are designed for activities such as walking, bicycling, hiking, or skating, and they often connect various activity areas within a park or provide access to natural preserves or nearby neighborhoods. These trails can be constructed
with either hard surface materials and are usable in all weather conditions, while soft surface trails offer a more rustic and natural experience.
Linear trails in Auburn are designed to connect different areas of the city or activity centers, leading to key destinations. These trails are generally hard-surfaced, making them suitable for activities like walking, bicycling, and skating, even in varying weather conditions. Notable examples of linear trails include the Green River (Reddington) Trail, Lakeland Hills Linear Trail, Lake Tapps Parkway Trail, and the White River Trail. The White River Trail, for example, stretches from Game Farm Wilderness Park through Roegner Park and ends at A Street SE, featuring both paved sections and soft surface areas that accommodate a variety of users, including mountain bikers, horseback riders, and hikers.
Recreation/transportation trails serve a dual purpose by connecting various parts of the city or activity centers for both recreational and transportation uses. Refer to Table 2-6 for the primary or major examples of these trails. These trails are typically linear, hard-surfaced, and designed to accommodate a variety of transportation modes, such as walking, bicycling, and skating. Sometimes referred to as “multi-modal trails,” they are built to stricter standards and are generally designed for two-way traffic.
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Inventory & Assessment 38
Table 2-5: Existing Trails
Park/Trail Description
Linear
Trails
Total
(miles)
Recreational
Loop Trails
Total (miles)
Recreation /
Transportation
Trails Total
(miles)
Total
Length
Auburndale Park Paved loop path around park 0.41 0.14
Auburn Environmental Park Board Walk Trail 0.23 0.23
Brannan Park Paved loop path around Park to Reddington levee. A paved surface linear trail extends along the levee.1.7 0.72 2.42
C’ Street SE Trail Ellington Rd. SW to 15th Street SW 1.6 1.6
Cameron Park Paved loop path through park and loops through Lemon Tree Lane 0.33 0.33
Cedar Lanes Park Informal path through wooded area 0.25 0.25
Dorothy Bothell Loop trail 0.25 0.25
Game Farm Park Paved loop path around meadow, play structure, ball fields. Extensive sidewalk throughout park 3.3 3.3
Game Farm Wilderness Park Paved trail along the White River and around the group camp area.See White R. Trail
Interurban Trail Paved 12’ wide trail runs alongside the Union Pacific railroad, from the city’s northern to southern limits 4.5 4.5
Isaac Evans Park Paved loop through wood and along the Green River 1.07 1.07
Jornada Park Paved loop through wood and around park 0.1 0.1
Lakeland Hills Linear Extensive sidewalk path on Lake- land Hills Way from Evergreen Way to Lake Tapps Parkway 0.73 0.73
Lakeland Hills Park Trail Paved loop path around recreational fields 0.39 0.39
Lake Tapps Pkwy Trail Paved sidewalk and asphalt trail 1.62 1.62
Les Gove Park Trail Paved loop path around open space 0.58 0.58
Mill Pond Park Trail Paved loop path around pond. Connects to Lakeland Hills Trail.0.29 0.29
PSE (Lakeland)0.4 0.4
Roegner Park Both hard and soft surface trails are present in the park. A paved loop path is marked.See White River Trail Below
Sunset Park Paved loop path around park.1.19 1.19
West Auburn Lake 0.25 0.25
White River Trail Paved and soft surface trail 3.5 2.3
Total 7.95 9.11 6.1 23.16
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Inventory & Assessment 39
The Interurban Trail is managed by King County Parks for the sections outside specific municipal boundaries. However, within Auburn’s city limits, the Auburn Parks Department is responsible for maintaining the segment of the trail that runs through the city. This collaborative effort ensures the trail remains well-maintained and accessible throughout its route. On the other hand, the White River Trail is primarily maintained by the City of Auburn Parks Department, which ensures its upkeep and accessibility as it connects several key parks within the city. The Interurban Trail is a prominent example of this type, serving as a major non-motorized route that runs north to south through several cities, including Tukwila, Kent, Auburn, Algona, and Pacific. This 12-foot-wide path follows the Puget Power right-of-way and parallels the Union Pacific Railroad for much of its length, making it a key transportation and recreational asset. The trail also provides access to several of Auburn’s major employers, including Boeing, GSA, the Outlet Collection, and Auburn Environmental Park. Located less than half a mile from downtown Auburn, the Interurban Trail is a vital link for the community.
Both the Interurban Trail and the White River Trail are also designed to accommodate equestrians, making them versatile for a range of users. Additionally, informal trails in the open space areas of southeast Auburn and the shoulders of some rural roads are also used by equestrians, although these are not specifically designed or managed for this purpose. Auburn’s commitment to providing diverse and accessible recreational options ensures that the city’s parks and trails continue to meet the needs of its growing population.
Schools & Other Outdoor
Recreation Amenities
In Auburn, recreational opportunities extend beyond city parks, encompassing other public lands and private facilities, which play a crucial role in assessing the adequacy of the City’s park system. Among these, schools are one of the largest contributors to recreational space outside of city-managed parks.
Schools naturally serve as neighborhood gathering places and are often within walking distance of most
homes in the city. School grounds typically feature sports fields, open grassy areas for play, playground equipment, and basketball courts. However, the accessibility and availability of these school facilities can vary. During the school year, these spaces are primarily used by the schools throughout the day and often during after-school hours, limiting their availability for individual use or non-school sports leagues. Additionally, some sports fields may be too small or not maintained to the standards required for organized league play. Therefore, while school facilities are valuable components of the community’s overall recreational resources, they cannot substitute for a robust public park system.
Table 2-7 in the following pages summarizes the recreational facilities available at Auburn School District properties. It’s important to note that the Auburn School District’s boundaries extend beyond the Auburn city limits, resulting in a service area that does not fully align with that of the City of Auburn. As a result, the availability and utilization of these school facilities for Auburn residents may vary based on geographic and jurisdictional differences.
In addition to school properties, several other lands used informally for recreation are owned by other public entities. The Auburn Water Utility manages several watershed areas with restricted access to maintain water quality. The Coal Creek Spring Watershed in south Auburn is the city’s primary water source, while the West Hill Watershed serves as a secondary source. Despite the proximity of these areas to neighborhoods, public access is generally discouraged to protect water quality.
King County Parks also owns several developed and undeveloped properties near Auburn. While Auburn’s parks are more convenient for residents, many recreational users also utilize nearby King County parks, regardless of civic boundaries. A significant regional project, the Green River Trail, managed by King County, spans over 19 miles from Cecil Moses Park near Seattle’s southern boundary to North Green River Park near Auburn. Extending the Green River Trail south from Kent has indeed faced challenges due to private property issues. However, plans are still in development to continue this extension through Auburn and eventually to Flaming Geyser State Park at the Green River Gorge. The project remains in the design and planning stages, with ongoing efforts to resolve these challenges and facilitate the trail’s expansion further south.
Additionally, the State of Washington owns an easement along certain sections of the west side of the Green River within the city. This easement, which runs directly behind several residences, permits access for fishing only, limiting broader public use.
Table 2-6: Auburn Maintained Trails
(Dedicated)
Type Length
Interurban Trail (South)4.5 mi
White River Trail 3.5 mi
Green River Trail*TBD
8.0 mi
* Future proposed extension
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Inventory & Assessment 40
Table 2-7: Auburn School District Facilities
School Available Facilities
Elementary Schools
Alpac 2 youth baseball/softball fields
Chinook 4 youth baseball/softball fields
Evergreen Heights 2 youth baseball/softball fields
Gildo Rey 2 youth baseball/softball fields
Ilalko 2 youth baseball/softball fields
Lakeview 3 youth baseball/softball fields
Lea Hill 2 youth baseball/softball fields
Dick Scobee 2 youth baseball/softball fields
Pioneer 3 youth baseball/softball fields
Terminal Park 2 youth baseball/softball fields
Washington 2 youth baseball/softball fields
Middle Schools
Cascade 1 Football Field with Track,
Gymnasium with 1 basketball court, Annex 2 Baseball/Softball Fields, 90’ & 65’ fields
Mt. Baker 1 Football Field with Track, 2 Gymnasium
3 Baseball Fields, 90’ & 65’ fields
3 Softball Fields
Olympic 1 Football Field, Track,
Gymnasium with 1 basketball court
2 Baseball/Softball Fields, 90’ & 65’ fields
Rainier 1 Football Field, Track
Gymnasium with 2 basketball court
2 Baseball/Softball Fields, 90’ & 65’ fields
Senior High Schools
Auburn Riverside High 1 Football Field synthetic turf with Track (Lighted), 8 Tennis Courts
5 Gymnasiums
1 Baseball Field, 90’ infield, 3 softball fields
Auburn Senior High 1 Football Field synthetic turf with Track (Lighted), 8 Lighted Tennis Courts
Gymnasium with 2 basketball court 1 Baseball Field, 90’ infield
Auburn Mountain View High 1 Football Field with Track,
6 Gymnasiums, 8 Tennis Courts
2 Baseball Fields, 90’ & 65’ fields, 2 Softball Fields
West Auburn High 1 Baseball/Softball Field, 65’ infield
1 Gymnasium
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Inventory & Assessment 41
Existing Major Public Art Projects
The City of Auburn Parks Department plays a vital role in maintaining the city’s vibrant public art installations. These installations not only enhance the beauty of public spaces but also reflect the cultural and artistic spirit of the community. Below is a list of the major public art installations that the Auburn Parks Department is responsible for maintaining, ensuring they remain in excellent condition for all residents and visitors to enjoy.
Table 2-8: Existing Public Art Inventory
Year Artist Piece Location
1989 Meg Pettibone Steelhead Isaac Evans Park
1991 Richard Beyer Children Playing Train at the Switch City Hall
1993 Michele Van Slyke Every Year the Salmon Return Roegner Park
1994 Nancy Hammer Burlington Northern Railroad Bridge
Auburn Way S & Hwy 18
1995 Garth Edwards B Street Plaza E Main & B St. SE
1996 Timothy Siciliano Bus Shelter Murla 15th St SW
1996 Gerald Tsutukawa Sun Circle Game Farm Park
1997 Timothy Siciliano The Equine Amusement 15th St. NE @ Metro P&R
1998 Deborah Merksy Pioneer Cemetery Entryway Auburn Way N & 8th St. NE
1999 Kulzer & Spitzer Xtreme AtmosFearic Oscillator
Auburn Skate Park
2000 Evans & Mee Mnemosyne’s Opus King County Library
2001 Phillip Levine Threshold Les Gove Park
2001 Ries Niemi 5 Moments Senior Center Les Gove Park
2003 Paul Sorey Running Figures Sound Transit Plaza
2004 Brandon Zebold Sighting LL Hills Way & Evergreen Way
2004 Sidney Genette Blue Neutron Auburn Justice Center
2005 Ingrid Lahti Les Gove Community Campus Sign
Auburn Way S & F Street
2006 Darel Grothaus
Evergreen-Washelli Cemetery: Seattle, WA
Cemetery Admin Building
2007 Greg Boudreau Veteran’s Day Parade
Veteran’s Memorial Building
2008 Tom Askman Le Anne Lake Tobu Bo West Main Street
2008 Jesse Brown Urban Art Works Mural
233 W. Main Street (A1 Collision Building)
2009 Susan Zoccola Swing and Flight Auburn Golf Course
2011 Bruce Meyers Auburn Valley Topography Les Gove Park
2011 Sheila Klein Civic Lanterns 25 W. Main, City Hall
2011 Rachael Dotson Utility Boxes Various–Throughout Down- town
2011 Mauricia Robalino Ride the Wave 116 A Street
2012 Chris Sharp Railroads our Beginning Mural 364 W Main Street
1013 Michael Laughlin Strawberry Calf Lea Hill Park
2013 Lin McJunkin Riparian Totem Auburn Justice Center
2013 Patricia Vader Watch My Tail 4910 A Street SE
2014 Kenneth Hall Origami #2 – Fuchia Sunset Park
2016 Virginia Paquette Confluence/Community 9910 Ninth Street SE
2016 Steve Tyree Hawk Game Farm Park
2017 David Varnau Joie de Vivre Auburn Community & Event Center
2019 Jacob Novinger Heirloom Hare Les Gove Park
2019 Peter Reiquam Crow with Fries Les Gove Park
2019 Nicholas Goettling Pillow Fight Mural F Street Bridge Underpass
2021 MacRae Wylde Truth Postmark Center for the Arts
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Public Involvement
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 43
The successful development and implementation of a community’s parks system ultimately relies on listening to the needs, demands, and ideas the community has to improve or suggest new additions to the system. Knowing that “the people who show up get to make the decisions”, it was imperative that a successful public involvement process be implemented that allowed Auburn’s citizens, and its visitors, multiple opportunities to inform the process and results. These opportunities hosted during this planning process included:
Community Needs Assessment Survey
Community Visioning Survey
With grant programs and other decision makers focusing on understanding a community’s desired quality of life, public involvement is the most crucial and time-consuming element of the PROS planning process, allowing a correct assessment of a community’s desired quality of life. This is where the public and users can share their ideas, goals, and objectives for their parks system and communicate these needs and desires to the City.
The intention behind the public involvement approach was to maximize an equitable distribution of needs, wishes, and ideas from the public. To ensure that
the PROS Plan is reflective of the Auburn community and their interests, needs, and priorities, a series of engagement goals and methodologies were discussed and developed.
Engagement Goals
As this process began and continued through the COVID-19 pandemic, many public events were canceled or postponed due to safety concerns and government restrictions, leading to a substantial decline or, in many cases, the elimination of in-person participation. To adapt, more focus was placed on virtual engagement techniques, which provided a safer alternative for community engagement, though they could not fully replace in-person experiences. There was also a notable increase in the use of parks and outdoor spaces as people sought safe ways to engage in recreational activities while maintaining social distancing, with activities like hiking, biking, and outdoor fitness classes gaining popularity. The pandemic prompted a reevaluation of public health and safety practices, resulting in changes to engagement planning and execution. As restrictions eased, participation rates began to recover gradually, although some individuals still remained cautious about returning to large in-person events. Additionally, there was an increased focus on health
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 44
and wellness, driving interest in related programs offered by parks and recreation departments and encouraging the development of more diverse and inclusive programming to meet community needs. Overall, COVID-19 brought about significant changes in public participation, with a lasting impact on how events are conducted and attended. To overcome this potential lack of participation, a series of goals for the engagement plan was developed.
1. Continue to Build On or Validate
Public Sentiment From Previous
Surveys
The goal is to recognize that in communities like Auburn, public communication often relies heavily on informal channels such as word-of-mouth and conversations among neighbors. This approach is effective for disseminating information and fostering discussions about local events. Auburn also has other planning processes, such as the Comprehensive Plan and Downtown Master Plan, ongoing during this time. The current planning effort aims to incorporate a review of these past surveys to identify relevant data that can inform the understanding of the community’s desired quality of life.
2. Ensure equitable distribution of new
survey results throughout the city.
To gain a holistic understanding of a city’s diverse communities and their needs, conducting surveys at the neighborhood level is crucial. This approach ensures that the concept of “quality of life” is not skewed towards a specific demographic. Ideally, the surveys are designed to capture respondents’ residential locations within the city. This allows for the identification of localized needs and the development of tailored strategies for equitable resource allocation, targeted interventions, and effective community engagement. Using a GIS-based tool to identify the locations of comments will ensure we can achieve a desired level of response equity across all neighborhoods of Auburn.
3. Deploy multiple engagement
opportunities The inclusion of multiple participation methods effectively broadens the reach of the survey and addresses potential accessibility challenges. In addition to online and virtual surveys, the public is invited to participate in multiple engagement events online and complete paper surveys distributed at designated locations like City Hall, the Senior Center, and the Museum. This multi-modal approach ensures inclusivity by catering to residents with varying technological access and preferences.
4. Provide a broad range of
constituents the ability to supply both
broad and specific action-oriented
feedback.
The goal is to transcend the collection of broad public needs and desires by implementing an online map-based engagement tool that uniquely incorporates opportunities for residents to actively participate in the “design” of their parks, generating site-specific suggestions. This approach will align with the principles of an inclusive planning framework, emphasizing citizen engagement in shaping service delivery. The aim is to create avenues for the public to contribute “real” ideas and concepts, fostering a sense of ownership and impact. Additionally, measures will be taken to ensure participant demographics accurately reflect the Auburn community profile.
Public Engagement Plan
Overview
The engagement plan was organized around a series of both virtual and in-person events, noting the specific time dates. With the primary goal of the City always being to engage with the public about its park and recreation needs, the City developed a public engagement plan centered around two different kinds of virtual engagement techniques: 1) an online Needs & Assessment Survey, and 2) an online map-based project.
A successful engagement process harnesses the community’s energy and inspires community ownership of the process, while also adapting to new insights and feedback. Stakeholders and community members supply the local knowledge, context, and information necessary to make informed project decisions.
As part of this engagement process, public comment was collected via an online community needs assessment survey, conducted in the Fall of 2022 and linked through the City’s website. The project team will use the collected input, summarized in this report, to inform and drive the PROS Plan update.
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 45
Kickoff Meeting
SCJ met with City of Auburn Staff to conduct a kickoff meeting. At this meeting, the following was reviewed and discussed:
1. Determine the current parks, recreation, and open space issues
2. Brainstorm and finalize stakeholder interview list
3. Share and finalize the Public Engagement Plan
Engagement Marketing
With a primary goal of the City to always be engaging with the public about its park & recreation needs, the City developed a public engagement plan centered around two different kinds of virtual engagement techniques, 1) A online Needs & Assessment Survey, and 2) a on-line map-based project
A successful engagement process harnesses the community’s energy and inspires community ownership of the process, while also adapting to new insights and feedback. Stakeholders and community members supply the local knowledge, context, and information necessary to make informed project decisions.
As part of this engagement process, public comment was collected via an online community needs assessment survey, conducted in the Fall of 2022 and linked through the City’s website. The project team will use the collected input, summarized in this report, to inform and drive the PROS Plan update.
Note that all the engagement marketing, flyers, and surveys were all translated and offer in multiple languages, including Chinese, Russian, and Spanish. A Marshaleese translator was found but was not able to process the survey information in time.
Parks Needs & Assessment
Survey
To assess how people were using Auburn’s park and trail system, an online survey was conducted in the fall of 2022. This initiative aimed to gather valuable insights from both residents and visitors. The survey specifically focused on understanding current usage patterns of existing parks and trails, identifying any barriers that hinder their use, and gauging resident interest in adding or removing specific park and recreation features. The online survey consisted of both multiple-choice and open-ended questions focusing on community needs and issues with regards to Auburn’s park facilities and recreation programs.
Additionally, the survey sought to identify the most popular parks and amenities among residents and visitors. To ensure broad participation, the survey was offered in both English, Spanish, Chinese, and Russian.
The list of questions asked, minus typical demographic inquiries, included:
How frequently do you use the City’s park and recreation facilities?
How long is your average visit to these facilities?
What are the existing barriers to your use of parks in
Auburn?
The survey was live for several months in the Fall of 2022, and a total of 619 completed surveys were received in that time. A summary of the responses to each question is provided on the following pages.
How much do you or would you use specific recreational elements?
What does Auburn need more or less of?
What is your connection to Auburn?
Other typical demographic questions were asked as well, in order to better understand the survey audience, identify any trends and ensure that a balanced representation was captured.
Full survey results are found in Appendix C, with key takeaways and highlights summarized here.
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 46
Age Range
When asked the question, “What age range are you in?” the largest percentage (33%) were in the 35–49 age range. Another 30% were in the 50–64 range, and 28% were 65 or over. Only 10% of respondents were under the age of 35.
Demographic information was collected to help ensure survey responses are representative of the community and amenities are tailored to patrons and residents. All responses were voluntary and were collected anonymously.
Ethnicity
When asked “What is your ethnicity?” the largest percentage (78%) identified as “White”, with another 5% identifying as “Hispanic/Latino” and 5% identifying as “Asian.”
“American Indian or Alaska Native,” “Black/African American,” and “Native Hawaiian or Pacific Islander” each accounted for less than 2% of the respondent population, and about 7% of respondents identified as “Other.”
Household Size
Nearly half of respondents (46%) indicated their household consists of only 1 to 2 people, and another 40% indicated their household consists of 3 to 4 people.
Demographics
0.5%
18–24
7.8%25–34
1.3%under 18
28.3%
65 or over
29.6%50–64
32.5%35–49
What is your ethnicity?
78.2%
White
1.5% American Indian or Alaska Native
4.7% Asian
1.5% Black/African American
5.2% Hispanic/Latino
1.7% Native Hawaiian
or Pacific Islander
7.2%
other
46.4%
1 to 2 people
39.8%
3 to 4 people
2.0%
7 or more people11.8%
5 to 6 people
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Demographics
Home Location
A majority of survey participants (79.5%) indicated they live in the City of Auburn. In order to better understand where Auburn’s park users live, survey participants were also asked what zip code they live in. Nearly 40% of participants responded that they live in zip code 98092 (Auburn – east), with another third of participants in 98002 (Auburn – central) and 12% in 98001 (Auburn – I-5 corridor). The survey also saw a significant number of participants who lived in Bonney Lake, Covington, Maple Valley, Federal Way, and Pacific.
Neighborhood of Residence
Of the 507 survey participants who indicated they live in the City of Auburn, the highest percentages live in the Lea Hill (21%) and Lakeland (20%) neighborhoods. The Downtown (8%), SE Auburn (6%), and Plateau (5%) neighborhoods had the smallest numbers of participants.
Yes –
I live in the
City of Auburn
79.5%
No –
I don’t live in the
City of Auburn
20.5%
NORTH
AUBURN LEA
HILL
SE AUBURN
SOUTH
AUBURN
LAKELAND
WEST
HILL
PLATEAU
DOWNTOWN
NORTH
AUBURN LEA
HILL
SE AUBURN
SOUTH
AUBURN
LAKELAND
WEST
HILL
PLATEAU
DOWNTOWN
98038
98002
98391
98023
98092
98354
98001
98058
98421
98422
98030
98443 98372
98321
98198
98042
98032
98022
98003
98047
98371
98390
98424
98031
Auburn
Covington
Maple Valley
Algona
Pacific
Bonney Lake
Sumner
Edgewood
Milton
Fife
Federal Way
Kent
Des Moines
18
167
167
18
0 50 100 150 200 250
number of respondents
98047 PACIFIC 1.0%
98003 FEDERAL WAY 1.0%
98038 MAPLE VALLEY 1.0%
98042 COVINGTON 1.5%
98391 BONNEY LAKE 3.1%
98001 AUBURN I5 CORRIDOR 12.4%
OTHER 6.7%
98023 FEDERAL WAY 0.8%
98002 AUBURN CENTRAL 33.3%
98092 AUBURN EAST 39.0%respondent home zip code0 20 40 60 80 100 120
number of respondents
DOWNTOWN 7.5%
WEST HILL 10.8%
NORTH AUBURN 14.8%
SOUTH AUBURN 15.0%
LAKELAND 19.9%
LEA HILL 20.9%
PLATEAU 4.9%
SE AUBURN 6.1%respondent home neighborhoodPage 1074 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 48
Use of Auburn’s
Existing Facilities
20.8%Spring
Summer 19.3%Fall
2.1%Winter57.7 %%
9.3%3 to 4 hours1 to 2
hours 2.1%4 to 5 hours
1.9%more than 5 hours66.2 %20.5%less than 1 hour
%
21.9%Monthly
Weekly 14.2%
Semi-Yearly
2.8%Yearly
6.0%Rarely/Never41.1 %14.0%Daily%Frequency
Survey participants were asked, “How frequently do you visit the parks or recreational facilities within the City of Auburn?” Over 40% indicated they visit Auburn’s parks weekly, with another 22% visiting monthly.
Length of Visit
When asked, “How long is your average visit to a park or recreational facility within the City of Auburn?” nearly two-thirds of participants responded with 1 to 2 hours, with another 21% indicating their average visits last less than 1 hour. Only 13% of respondents indicated their average visits were longer than 2 hours.
Season
Participants were asked, “What is your favorite season to visit parks and recreational facilities in the City of Auburn?” Summer was the favorite time to visit for 58% of respondents, with Spring and Fall each garnering about 20% of the vote. Only 2% of respondents indicated winter was their favorite season for a parks visit.
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 49
Recreational Facility Use
0 100 200 300 400 500
SOCCER FIELDS 13.4%
INDOOR FITNESS AND EXERCISE FACILITIES 15.5%
GOLF COURSES 12.0%
HIGH SCHOOL/ADULT BASEBALL FIELDS 9.4%
COMMUNITY GARDENS 12.9%
OFFLEASH DOG PARKS 17.0%
INDOOR MULTIPURPOSE COMMUNITY CENTERS 17.3%
THEATER OR CULTURAL CENTER 19.1%
FOOTBALL/LACROSSE/FIELD HOCKEY FIELDS 6.8%
YOUTH SOFTBALL FIELDS 7.4%
OUTDOOR FITNESS EQUIPMENT 5.7%
SKATEBOARDING AREAS 3.9%
OUTDOOR BASKETBALL COURTS 6.3%
OTHER 7.8%
TENNIS COURTS 8.6%
GYMNASIUMS 8.9%
WATER SPRAY PARKS 25.0%
NONPAVED WALKING AND BIKING TRAILS 29.4%
RIVER ACCESS FACILITIES 29.9%
PICNIC SHELTERS/AREAS 30.7%
PLAYGROUNDS 42.0%
NATURAL AREAS/NATURE PARKS 44.9%
SMALL NEIGHBORHOOD PARKS 46.8%
LARGE COMMUNITY PARKS 51.2%
PAVED WALKING AND BIKING TRAILS 75.0%
number of respondents
(see breakdown at right)
18.8%
Unspecified
14.6%
Events/programs
8.3%
Bocce courts
8.3%
Disc golf course
6.3%
Camping areas
4.2%
Restrooms
2.1%
Areas to ly model aircrat
33.3%
Pickleball courts
4.2%
Rock climbing wall
“Other”
open-ended
responses
75%
of all respondents identified
paved walking/biking trails as
one of the recreational facilities
they use most regularly
Types of Facilities Used
Respondents were asked to select from a multiple-choice list to answer the question, “What are the types of recreational amenities/facilities that you most regularly use?” Respondents could select as many choices as applicable for them/their household, regardless of whether the facilities were located in Auburn or not.
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 50
Recreational Facility Use
Recreational Facilities Outside Auburn
As a follow-up question to what types of recreational amenities/facilities they use most regularly, survey participants were asked, “Do you currently travel outside the City of Auburn for any of these amenities?” They were then asked to list the facilities they currently travel outside the City of Auburn to use. The open-ended answers provided by participants can be broadly broken into the categories below.
0 25 50 75 100 125 150
GARDENS/ZOOS 1.9%
SPLASH PARKS 2.4%
PICKLEBALL COURTS 0.9%
SKATE PARKS 0.9%
POOLS 1.5%
NATURAL/OPEN SPACE AREAS 2.6%
GOLF COURSES 2.8%
STATE/NATIONAL PARKS 3.2%
CAMPING AREAS 0.2%
ADULT REC PROGRAMS 0.4%
PICNIC FACILITIES 0.6%
DISC GOLF COURSES 0.6%
TENNIS COURTS 0.9%
CULTURAL EVENTS 3.4%
SPORTS FIELDS 3.6%
BIKE TRAILS 4.1%
PLAYGROUNDS 4.3%
DOG PARKS 5.4%
INDOOR/COMMUNITY CENTERS 6.0%
WATER ACCESS 8.2%
WALKING/HIKING TRAILS 16.7%
OTHER CITY PARKS 29.2%
number of responses
Please list the facilities you currently travel outside the City of Auburn
to use.
63%
of all respondents indicated they
travel outside of Auburn to access
the recreational amenities/facilities
they use most frequently
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Public Involvement 51
Recreational Facility Use
Barriers to Use
Survey participants were asked to select from a multiple-choice list to answer the question, “What are some of the existing barriers or reasons why you may not use available recreational facilities or participate in parks and recreational programs within the City of Auburn?” Participants were invited to select as many choices as applied for them/their household. Security/safety concerns (57%) were the top barrier to participants’ use of existing facilities, followed by maintenance/cleanliness (31%) and overcrowded/booked facilities (20%).
0 50 100 150 200 250 300 350 400
number of respondents
I DON’T LIVE IN AUBURN 6.1%
AMENITIES ARE TOO FAR AWAY/NOT AVAILABLE 11.5%
DON’T KNOW WHAT’S AVAILABLE/WHERE FACILITIES ARE LOCATED 12.1%
OTHER 13.6%
TOO BUSY/NOT A PRIORITY 18.3%
FACILITIES ARE OVERCROWDED/BOOKED 20.0%
COST 5.2%
POOR ACCESSIBILITY/ADA 5.7%
POOR MAINTENANCE/CLEANLINESS 31.3%
SECURITY/SAFETY CONCERNS 57.2%
57%
of respondents reported that
security/safety concerns are a barrier
to their use of the City’s available
recreational facilities or programs
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Parks and Recreation Needs
0 20 40 60 80 100
SPORTS LEAGUES18 AND OVER
ADDITIONAL BALL FIELDS SOCCER,BASEBALL, FOOTBALL, ETC.
ADDITIONAL PICNIC AREAS/SHADE STRUCTURES
ADDITIONAL COMMUNITY,CULTURAL, ARTS FACILITIES
ADDITIONAL SPORT COURTSBASKETBALL, TENNIS, PICKLEBALL, ETC.
MORE YOUTHPROGRAMS/CAMPS
COMMUNITY CENTER/INDOOR FACILITIES
OFFLEASH DOG PARK
SPLASH/SPRAY PARK
UNDEVELOPED NATURALAREAS/OPEN SPACE
MORE URBAN TRAILS/SIDEWALKS NONMOTORIZED
percent of respondents
Strongly Agree Agree No Preference Disagree Strongly Disagree
The City Needs...
Survey participants were provided with a list of recreational facilities and amenities, each framed as a statement (“The City needs [facility/amenity]”). Participants were asked to select how strongly they agreed or disagreed with each statement on a sliding scale of one to five (5 = strongly agree, 4 = agree, 3 = no preference, 2 = disagree, 1 = strongly disagree). Responses are summarized in the above chart.
At the top of the list, over 90% of participants either agreed or strongly agreed that the City needs more urban trails/sidewalks (non-motorized). Strong support was also given for undeveloped natural areas/open space, splash/spray parks, off-leash dog parks, community center/indoor facilities, and more youth programs/camps.
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Key Takeaways
The project team will use the input collected through the community survey to inform and drive the PROS Plan update. Key takeaways from the survey data include:
Survey respondents’ most-used recreational facilities include paved walking/biking trails (used by 75% of respondents), large community parks (51%), small community parks (47%), small neighborhood parks (47%), natural areas/nature parks (45%), and playgrounds (42%).
Survey respondents’ least-used recreational facilities include skateboarding areas (used by 4% of respondents), outdoor fitness equipment (6%), football/lacrosse/hockey fields (7%), and youth softball fields (7%).
63% of survey participants indicated they travel outside of Auburn to access the recreational amenities/facilities they use most frequently. These facilities include other (nearby) city parks (29%), walking/hiking trails (17%), water access (8%), and indoor community centers (6%). These responses suggest there could be a need for more of these facility types in the City of Auburn, or a need to improve those that already exist within the city.
Barriers to use indicate existing issues that need to be addressed by the City in order to improve Auburn parks users’ experience. The largest barriers to use of the City’s available recreation facilities or programs, as reported by survey respondents, are security/safety concerns (57% of respondents), poor maintenance/cleanliness (31%), and overcrowded/booked facilities (20%).
According to survey respondents, the City of Auburn’s biggest parks and recreation needs include:
• More non-motorized urban trails/sidewalks (92.5% of respondents)
• Undeveloped natural areas/open space (86.4%)
• Community centers/indoor facilities (84.5%)
• Splash/spray parks (80.2%)
• More youth programs/camps (77.9%)
• Off-leash dog parks (69.9%)
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Demand & Needs
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The purpose of the demand and needs analysis is to evaluate, quantify, and understand the current and future demand for recreational facilities and parkland. This analysis also identifies the existing and anticipated needs for providing parkland, facilities, and open spaces, both now and in the future. “Needs” in this context includes both the preservation of existing services and resources, as well as the projected future requirements based on population forecasts and economic outlooks.
This update reflects the community’s needs, desires, and recommended priorities, establishing a foundation for the next 6 to 10 years. It also outlines longer-term aspirations for the next 15 to 20 years.
Quantifications vs
Qualifications
Traditionally, quantitative standards have been used to assess the need for and identify potential actions to acquire or develop additional parks and recreation elements. Based on the National Recreation and Park Association’s (NRPA) guidelines and its online database “Park Metrics,” simple comparisons of adequate land, derived from normalized averages across the country, were used to determine the minimum amount of
parkland required to effectively provide parks and recreation services.
While this plan is primarily focused on the needs identified by the public, it also evaluates the recreational demands of the City of Auburn using traditional level-of-service (LOS) standards, recreation trends, and a gap analysis of access within the current park system.
However, while quantifiable metrics allow for straightforward comparisons, they fall short when it comes to understanding the “quality” of life that a community expects or demands. Developing strong strategies and identifying potential improvements requires engaging with community members through surveys, public meetings, and other forms of public consultation. The previous section of this report outlines this process in detail.
This section concludes with a comparison of the quantitative and qualitative findings to refine a methodology for testing and ultimately selecting improvements that will enhance Auburn’s quality of life, aligned with its demonstrated values and preferences.
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Park Equity & Access
To better understand where the demand and need for park lands should occur, a service area map was created on the following pages that identifies the current service area of each existing park and the new service areas created by proposed improvements.
To develop the service maps, Open Street Map data was used to identify and verify known sidewalk data and the City’s transportation grid that the City of Auburn provided. Sidewalks are considered to be safe walking routes. All the existing access points to each existing park and/or trail space were digitized and a network analysis of the safe walking routes to each access point was developed. The analysis would initially stop even if the end of a sidewalk was encountered before the 10-min range (approximately 1/2 mile) was reached.
A second analysis ignored the known sidewalks and trails but followed the City’s existing transportation grid, essentially identifying known gaps in the walkshed that could be addressed by extending existing sidewalks.
Additional maps on pages 60 and 61 highlight specific areas of the City where residents identified gaps in the current park system, with a particular emphasis on the need for more sports fields, courts, and other recreational amenities, as indicated through public involvement responses.
The “10-Min Walk” Metric
A 10-minute walk is considered an important park access metric for several reasons. A 10-minute walk (approximately 1/2 mile on level ground) as a park access metric is important because it promotes physical activity, equity, sustainability, social interaction, and overall community well-being (see ‘Benefits of the 10-min Walk’ on the next page.) It aligns with various health, environmental, and social goals the City has and should encourage staff and policymakers to prioritize accessible green spaces as a fundamental part of Auburn’s development and the community’s desired quality of life.
The figure on the following page identifies the service areas, AKA the 10-minute “walksheds”, for each existing park as well as showing the current gaps on the page after that.
Gap Analysis
As outlined in the Goals & Objectives and related policies, ensuring that residents have fair and easy
access to parks located within a half-mile of their homes is crucial for the overall health and well-being of the community. This previous figure offer insights into population density and conducts a network analysis of park accessibility. This analysis examines each property’s ability to reach a nearby park within a half-mile, either via a street or a trail. The service area maps are designed to demonstrate how accessible parks with various amenities are to the community and how accessibility could be enhanced through improvements to parks that currently offer limited amenities. It’s worth noting that these accessibility gaps can be reduced by ensuring safe access to parks can be increased with new sidewalks and transportation improvements.
City of Auburn Projections
The City of Auburn, out of 635 named cities and populated areas, is currently ranked #14 in the list of cities in the State of Washington based on population size, and is located in the county with the highest desnity of people living per sq mile.
The Office of Financial Management (OFM) predicts population projections under the Growth Management Act (GMA) to accommodate growth over the next 20 years. While the most recent census data available is from 2020, it shows the population has grown to over 88,000. The rapid growth experienced during the ‘90’s and ‘00’s may have slowed, but Auburn remains an attractive community known for its family-oriented, small-town atmosphere. With affordable housing compared to most of King County, convenient highway access, and a charming small-town feel, Auburn is poised for continued, stable growth that will support the demand for recreational facilities.
Recreation Trends
Outdoor recreation is on the rise nationwide, and Washington State and all its communities is no exception. Since 2019, and especially throughout the Covid pandemic, outdoor recreation equipment sales saw a significant increase across all major product categories. In Washington, there has been a notable surge in the participation rates of 20 outdoor activities since 2017. Among these activities, non-motorized trails, nature and wildlife viewing, camping, paddling, winter recreation, and leisure activities in nearby parks are consistently in high demand among Washington residents. With an expected statewide population increase of 2 million residents in the next 25 years, it’s more critical for cities such as Auburn to plan for the future demand on outdoor recreation facilities.
Outdoor recreation not only supports local economies
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but also connects people with the natural world, promoting physical and mental well-being. With the rise of work-from-home arrangements post-pandemic and housing shifts from larger cities to smaller communities, residents are increasingly seeking convenient access to a variety of outdoor experiences, both developed and primitive, that allow them to integrate nature-based recreation into their busy schedules while avoiding crowds and traffic.
However, striking a balance between providing access to outdoor recreation and safeguarding natural and cultural resources remains a significant concern statewide. The heavy concentration of outdoor recreation at popular sites has led to resource degradation and reduced user satisfaction. Many communities face disparities in access to meaningful outdoor recreation opportunities, and residents often struggle with the time, cost, and information needed to support their outdoor pursuits. As the state aims to promote equitable access to the social, health, and economic benefits of outdoor recreation, a careful approach to outdoor recreation management is essential to ensure the protection of natural and cultural resources.
2030 Statewide
Comprehensive Outdoor
Recreation Plan
The 2023 Recreation and Conservation Plan, or commonly referred to as the Statewide Comprehensive Outdoor Recreation Plan (SCORP), is a comprehensive document outlining the state’s vision for outdoor recreation and public land conservation. Developed by the Recreation and Conservation Office (RCO), the plan guides investments for the next 5-10 years. It considers challenges and benefits of outdoor recreation, assesses current demand, and inventories existing opportunities. By establishing statewide priorities and goals, the plan serves a crucial role in securing funding, guiding investments strategically, and fostering collaboration between land managers. Public input through surveys and outreach ensures the plan reflects the needs of Washington residents. Ultimately, the WA State RCO SCORP Plan serves as a blueprint for a sustainable future where outdoor recreation and public lands are preserved and accessible for all.
RCO’s 2022 Assessment of
Resident Demand
In the 2022 Assessment of Resident Demand report, participation rates for 45 activities were compared to 2017. All but two of those activities (Technology-based
games and Collecting or Gathering Things in Nature) showed an increase in participation. Activities that had the greatest increase in participation include the following:
Wildlife or nature viewing increased by 28%
Paddle sports increased by 28%
Visiting outdoor cultural or historical facility increased by 27%
Tent camping (undeveloped area) increased by 26%
Backpacking increased by 25%
Playing yard games (in a park) increased by 25%
Snowshoeing increased by 23%
Tent camping (developed area) increased by 19%
Hanging out (in a park) increased by 19%
Mountain biking increased by 18%
The SCORP document classifies Auburn within the ‘Seattle King” region, encompassing King CVounty soley. Note that a portion of Auburn stretches into Pierce County. Regardless, the SCORP survey reveals a significant trend – “walking in a park or trail setting” that boasts the highest participation rate in the region (92% compared to the statewide average of 82%). This preference for walking holds true across diverse demographics, including age, gender, race, and income groups.
An interesting observation is the increasing popularity of walking as a recreational activity since the previous RCO survey in 2012. Additionally, participation in boating and swimming has also risen, with swimming now ranking among the top 10 recreational activities in the Seattle King region. Other favored activities include nature-based pursuits like visiting rivers, streams, and beaches, wildlife viewing, attending outdoor events like farmer’s markets and fairs, and day hiking. These findings from the SCORP planning outreach program align with the trends identified in state-level surveys, underscoring the importance of walking/hiking opportunities and nature-based recreation in King County.
Trails
Trails, both within parks and connecting parks, schools, shops, and destinations are generally the top demand seen across the country. Providing trail connections between these popular destinations enhances a community’s walkability and encourages active lifestyles. Trail usage has seen a significant uptick in recent years, with data suggesting a surge starting in 2020. Recent studies by both American Trails report increases ranging from 79% to 171% and can
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attributed to several factors, especially as a response to the COVID-19 pandemic. With access to traditional forms of exercise and leisure activities significantly impacted due to closures and safety concerns, many people turned to outdoor recreation, including hiking and other trail-based activities as safe and accessible options. This trend has continued post-pandemic, with increased trail use likely due, in part, to the population continuing to seek alternative ways to exercise and maintain mental well-being.
While some pandemic restrictions have eased, evidence from the National Parks Service and the Washington State SCORP suggests a continued rise, or at least a steady hold, in trail use. This trend underscores the growing importance of well-maintained trail networks. This applies not just within parks themselves, but also in connecting parks and open spaces together. As demand for these outdoor spaces rises, so too does the need for additional supporting infrastructure to ensure their continued enjoyment by all.
Canines
The trend of dog ownership in the United States is experiencing a significant upswing, with estimates suggesting a population exceeding 89 and 94 million canine companions nationwide. This surge translates to a parallel rise in demand for designated dog parks across the country. These parks, particularly larger facilities, have become popular destinations, attracting dog owners and potentially boosting agency revenue through user fees and contributing to tourism.
In Washington State, the growing human-canine bond is likely influencing public land use plans. With dogs increasingly viewed as cherished family members, especially in urban environments, families are actively seeking opportunities to include their furry companions in outdoor activities. Cities are likely taking note of this trend, potentially leading to the inclusion of designated dog walking areas or off-leash spaces within their planning strategies.
Pickleball & Padel
The participation in pickleball has witnessed a remarkable surge, growing by 159% in just three years, reaching 8.9 million participants in 2022, as reported by the Sports & Fitness Industry Association.
This swift expansion has presented challenges for public parks and recreation departments, which must strike a balance between the competing interests of diverse recreational activities while working within
constraints of limited space and budgets. Parks agencies are becoming more confronted with the task of accommodating pickleball enthusiasts, who favor this tennis-like sport with a smaller court, without causing discomfort or inconvenience to others. The noise and disruption generated by pickleball is becoming more a source of frustration for some neighbors, tennis enthusiasts, parents with young children, and other community members.
In various towns and cities, homeowners’ associations and local residents have begun to impose restrictions on pickleball activities and thwart the construction of new courts. They have initiated petitions, pursued legal actions, and voiced their concerns at council and town hall meetings, all in an effort to temper the widespread enthusiasm for pickleball and its unique auditory characteristics.
Similar to pickleball, Padel is a racket sport of Mexican origin gaining popularity across the United States. This game is a cross between tennis, racquetball, and squash. It’s currently estimated that Padel has over 100,000 players in the United States, and the number of courts has more than doubled in the last two years, expecting to grow to 30,000 courts by 2030. It is expected that the sport will grow substantially in communities with growing Hispanic populations, including Auburn.
Youth Sports
Participation in youth sports leagues has undergone a complex transformation in recent years. While traditional team sports remain popular, data suggests a decline in children (ages 6-12) consistently playing on teams. The Aspen Project reports a drop from 45% in 2008 to 38% in 2018, and the Sports & Fitness Industry Association (SFIA) confirms this trend with a 6% decline in core participation (ages 6-17) between 2019 and 2022. This translates to roughly 1.2 million fewer participants. Several factors may contribute to this decline, including the financial burden of participation fees, equipment, and travel expenses, concerns about over-specialization leading to burnout, and time constraints due to competing academic and extracurricular demands.
This changing landscape has potential implications for the need for large regional sports facilities. While the decline in regular participation suggests a decreased demand for facilities solely focused on traditional team sports, total team sports participation (including those playing at least once a year) remained stable between 2019 and 2022, suggesting a potential shift towards less structured forms of sports involvement. Basketball continues to be the most popular sport, with nearly a
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quarter of youth (ages 6-17) participating at least once in 2022.
Multi-sport facilities catering to a wider range of activities and hosting tournaments or events attracting teams from a broader area are expected to see continued use. Well-designed facilities could also become community hubs, offering recreational activities for all ages and potentially incorporating amenities like fitness centers or indoor walking tracks that would noit be affected by inclement weather.
The future of youth sports will require adaptation in programs. Focusing on fun and inclusivity, offering flexible scheduling and shorter seasons, implementing strategies to reduce financial barriers, e.g. developing parks districts to help cover long-term operating & maintenance costs, and promoting foundational athletic skills applicable to various sports are all crucial considerations. By adapting to these trends, youth sports programs can ensure they continue to play a vital role in promoting physical activity, social development, and positive health outcomes for children.
Playground Trends
Modern playground design reflects a growing emphasis on inclusivity, fostering connections with nature, and catering to a wider range of users. A key trend to note is the creation of inclusive playgrounds, ensuring accessibility for children with various abilities through features like ramps, sensory panels, and equipment that accommodates different physical and cognitive needs.
Playgrounds are also increasingly designed to mimic natural environments, incorporating elements like logs, boulders, and water features. This reconnection with nature encourages open-ended and imaginative play.
The concept of multigenerational playgrounds is also gaining traction, offering adult fitness equipment and interactive features that promote intergenerational play within families and communities. Grant programs such as AARP’s FitLot program is a great example.
Sensory play experiences are being actively integrated through musical instruments, textured panels, and fragrant plants. These elements stimulate different senses, enriching the play experience and catering to children with special needs.
While still emerging, some playgrounds are exploring seamless technology integration through augmented reality or interactive elements, adding a new layer to physical play.
Recognizing the limitations of shrinking green spaces in downtown cores or within communities, there’s a growing focus on “playgrounds within reach.” This involves maximizing the play value of smaller spaces through multifunctional equipment, innovative design, and better integration with surrounding areas.
Overall, these trends highlight a shift towards playgrounds that are not just fun, but also inclusive, educational, and promote holistic development in children.
Electrification
As electric technology develops, maintenance equipment, vehicles, mowers, and other equipment used in parks and recreation are transitioning from gas powered resources to electric assets. This transition provides long-term cost savings, environmental benefits, and decreased noise. Additionally, parks and trailheads should consider the addition of EV charging stations in parking lots, as the number of EV cars on the road continues to grow. Washington State has led this transition to electric vehicles, with over 18% of new cars sold in the first half of 2023 being fully electric or plug-in hybrids according to the Seattle Times. Vehicle chargers located at park facilities enable drivers to engage with park facilities while waiting for a full charge.
Climate Resiliency
The concept of electrification pertains to growing needs for climate resilience and the ways in which future park implementations can accommodate the increase of hotter days and nights, as well as the increase of storm and wildfire impacts. Parks create a great opportunity to address these goals through smart design and engineering. Parks and open space can mitigate urban heat islands, absorb flood and stormwater, and create fire breaks through green space and linear trail corridors. Climate change, stormwater/flooding implementations, and tree canopy coverage should be considered in future park renovations to increase resiliency.
Funding Threats &
Availability
Funding for parks and municipal recreation services has been forced into a creative shift as municipalities have been forced to seek additional ways to fund operation and improvements. Long-standing grant and funding assistance programs have repeatedly come under threat at both the federal and state level. Congress let the Land and Water Conservation
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Fund (LWCF) expire in 2015 for the first time in 50 years. In response to public outcry, several members in Congress fought for a short-term solution: an emergency authorization of three years. In 2016, Congress had another opportunity to permanently reauthorize LWCF, thanks to legislation championed by Washington’s own Senator Maria Cantwell in the Energy Bill. While LWCF initially failed under the past administration, in September 2021, LWCF was permanently authorized with full funding through the Dingell Act. This act directed a significant portion of offshore oil and gas royalties to the LWCF for the preservation of public lands, waters, and recreational opportunities.
Since then, specific funding levels and appropriations for the LWCF have varied from year to year as part of the federal budgeting process. Funding for the LWCF depends on annual appropriations by Congress, hence the program’s budget and funding levels can be subject to changes and priorities set by the federal government.
Investments in Parks Will
Rise
Across other municipal agencies statewide, investment in state and local infrastructure, which had been depressed since the Great Recession of 2008, and especially since the COVID-related stimulus packages, e.g., ARPA, increased federal funding has helping that fund public works and park and recreation infrastructure improvements, such as buildings, restrooms, and roads.
State and local spending is up nearly 10 percent from last year, according to data from the Commerce Department, and spending on capital outlays continues to grow. The Commerce Department data also show that spending on amusement and recreation facilities is up 31 percent from a year ago. It appears that economic conditions will remain favorable for new investments in park and recreation infrastructure if local and state tax collections continue to rise and interest rates remain relatively low. Building on the momentum of the past few years, local and state governments will make even more park and recreation infrastructure investments in buildings, playground equipment, roads and bridges, and capital repairs to aging infrastructure, topping the highest level of infrastructure spending since the recession of 2008.
Level-of-Service (LOS)
To evaluate how different types of parks align with a community’s desires, the National Recreation & Park Association (NRPA) developed and maintains simple demand standards as a guideline for identifying the number of park facilities potentially needed per community. While there are various methods to assess the service standards of a park system, the NRPA’s standards focus primarily on comparing population size to the number and types of parks or recreational amenities offered.
Traditionally, the ratio of land acres per thousand people has been a widely adopted measure. However, this metric provides only a limited evaluation of a park system. A more comprehensive approach to determining service standards should consider the distribution of land and facilities throughout the community, the per capita value of the system, the availability of programs for all demographics, the characteristics of the park user base, the quality and upkeep of facilities, and, most importantly, public perception of the park system as an indicator of quality of life.
Recognizing that the vision, values, and needs of each community are unique, planners have acknowledged that simply applying local level-of-service (LOS) standards to a national benchmark is not an effective means of evaluating a community’s specific needs and vision. Consequently, NRPA’s LOS standards have evolved in recent decades, now recommending that each community develop its own standards based on local goals, priorities, and conditions.
NRPA Recommendations
The National Recreation and Park Association (NRPA) provides guidelines for Level of Service (LOS) standards, which help communities determine appropriate targets for parks and recreational facilities based on population. However, it’s important to note that NRPA has moved away from prescribing specific numeric LOS standards (traditional benchmarks) for all communities, recognizing that each community has unique needs and contexts. Instead, they emphasize using data-driven approaches, including benchmarking against similar communities, community input, and local conditions to determine the appropriate LOS.
For communities with populations of 85,000 to 100,000 residents, the NRPA suggests the following general recommendations:
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Total Parkland per 1,000
Residents
Traditional Benchmark: Historically, a common benchmark was to provide around 10 acres of parkland per 1,000 residents. However, this is no longer a one-size-fits-all recommendation. Communities are encouraged to set their own targets based on factors such as geographic constraints, population density, and specific recreational needs.
Contemporary Approach: Communities might set goals ranging from 5 to 20 acres per 1,000 residents, depending on their unique circumstances and priorities.
Park Access and Distribution
Accessibility: NRPA recommends that all residents should have access to a park or green space within a 10-minute walk (approximately 0.5 miles) from their home. This focus on accessibility ensures that park benefits are equitably distributed across the community.
Distribution: For larger communities, ensure that parks are evenly distributed across different neighborhoods and are easily accessible by diverse modes of transportation, especially safe walkable routes.
Programming and Services
Diversity: Communities should offer a wide range of recreational programs that meet the diverse needs of their population, including youth, adults, seniors, and special populations. This may include sports leagues, fitness classes, arts and culture programs, and environmental education.
Staffing Levels
Staffing is crucial for maintaining facilities and delivering quality programming. NRPA provides guidance on staffing ratios, often suggesting a mix of full-time, part-time, and seasonal staff based on the size and scope of the park system.
Staffing by Park Acreage Benchmark: NRPA recommends approximately 1 full-time equivalent (FTE) maintenance staff member per 10 to 20 acres of developed parkland. This number can vary depending on the complexity of the park, the intensity of maintenance required, and the specific facilities within the park (e.g., sports fields, playgrounds, trails).
Programming and Operations Staff: For every 50 to 100 acres of parkland, NRPA suggests having 1 FTE dedicated to programming and operations. This staff is responsible for organizing events, managing facilities,
and overseeing day-to-day operations.
Staffing by Number of Parks: NRPA recommends approximately 1 FTE staff member (including maintenance, administrative, and programming roles) per park, assuming the park is of average size and complexity. Smaller parks might not require a full-time staff member and could be maintained by part-time
Budget and Funding
NRPA annually surveys parks organizations across the country to provide quantitative data on several budget and funding metrics:
Per Capita Spending: NRPA Park Metrics reports suggest that the average spending per capita by park and recreation agencies across the U.S. is around $85-$90 per resident. However, this can vary significantly depending on the size of the city, regional cost of living, and specific needs of the community.
Operating Budget Per Acre: NRPA’s Park Metrics also indicate that the median operating expenditure is around $6,000 to $8,000 per park acre. This includes costs for maintenance, staffing, utilities, and other operational needs.
Capital Expenditures: A common benchmark is that capital expenses (new developments, major renovations, etc.) should be a significant portion of the overall budget. A rough guideline is allocating 20-30% of the total budget to capital projects, though this can fluctuate based on current needs and existing infrastructure.
Auburn’s Quantitative LOS
With NRPA’s recommendations in mind, a straightforward quantitative analysis of the City’s Level of Service (LOS) can be conducted. The following section evaluates Auburn’s current park system against expected NRPA benchmarks to identify current performance and future needs. Ultimately, these quantitative findings will be integrated with the public involvement findings to develop a customized set of LOS standards. This approach, grounded in extensive community engagement, ensures that Auburn’s parks and recreation system reflects the community’s priorities, whether that means more green spaces, enhanced sports facilities, expanded trails, or additional cultural amenities.
LOS Standards & Overview
Table 4.1 presents the current Level of Service (LOS) based on Auburn’s park classifications and recreational amenities inventory. The LOS analysis utilizes assumed low to median values for each category, considering
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Auburn’s current population of 90,096 (as of 2024) and a projected population of 114,540 by 2044. Below is an overview and guideline for LOS quantifications, structured around common park classifications and key recreational elements.
Total Parkland LOS Analysis
Overview: Currently, the City of Auburn boasts a diverse portfolio of parks and recreation assets, totaling 57 sites and covering over 980 acres. This exceeds the lower end of the expected range for parkland based on NRPA guidelines. The NRPA typically recommends between 10 to 20 acres of parkland per 1,000 residents as a general standard. With Auburn’s current population of 90,096 (as of 2024), the expected median total acreage of parkland would range from approximately 900 to 1,800 acres. Auburn’s park system is therefore well-aligned with these recommendations, supporting the recreational needs of its residents today.
Table 4-1: Existing Facility Type & LOS Targets
Facility Type Current Recommended
Standard*
Current
Ratio
Current
Difference
Projected
Difference****
Park Classification
Mini-Parks (Pocket Parks)16.71 acres 0.25 to 0.5 acres 0.19 -0.06 -0.1
Neighborhood Parks 51.23 acres 1 to 2 acres 0.57 -0.43 -0.55
Community Parks 283.31 acres 5 to 8 acres 3.14 -1.86 -3.14
Open Space 321.42 acres 5 to 10 acres 3.57 -1.43 -2.19
Special Use Areas 307.69 acres Variable
Total Parkland 980.35 acres 10 acres 10.88 +0.88 -1.44
Total # of Parks 57 1 park per 2000 46 +11 -
Trails 21.96**.25 to .5 miles 0.24 --6.67
Recreation Amenity
Baseball/Softball Fields 7 1 per 5,000 18.02 -9 -13
Soccer Fields 4 1 per 10,000 9.01 -5 -11
Football Fields 2 1 per 20,000 to 25,000 3.6 -2 -4
Multi-use Fields 6 1 per 10,000 9.01 -3 -5
Basketball Courts 18 1 per 5,000 18.02 --5
Tennis Courts 8 1 per 4,000 22.52 -13 -20
Playgrounds 33 1 per 1,000 children under 12***18 +15 +3
Pickleball Courts 16 1 per 4,000 22.52 -6 -12
Volleyball Courts 2 1 per 10,000 9.01 -7 -9
Recreation Centers 1 1 per 25,000 3.6 -2.6 +3.5
Splash Pads 2 1 per 25,000 3.6 -1.6 -2.5
Dog Parks 2 1 per 50,000 1.8 --
Skate Parks 4 1 per 25,000 3.6 --.5
Golf Courses (18-hole)1 1 per 50,000 1.8 -1 -1
Community Gardens (Plots)16 1 per 10,000 9.01 +7 +5
Amphitheaters 1 1 per 50,000 1.8 -0.8 -1
* measured as acres per 1000 population
** Includes other trails maintained by others
*** Projected 2044 Population = 114,540
**** Assumed # of childen under 12 approximately 20% of overall population
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Total Number: 57 parks
NRPA Target Number of Parks Based on Population: 57 Parks
Total Acreage: 980.35 acres
Average Size: 21.97 acres
NRPA Target Acreage Based on Population: 10-20 acres per 1000
Current LOS: 10.88 acres per 1,000 residents
Projected LOS: 8.56 acres per 1,000 residents
Auburn Target LOS: 10 acres per 1,000 residents or additional 164 acres of total parkland by 2024
Conclusion/Recommendations: Auburn’s current total acreage of parkland is generally within the expected range for a community of its size and physical context. However, when analyzing the distribution and average size of its park types, especially neighborhood and community parks, there are notable discrepancies compared to national standards.
According to the National Recreation and Park Association (NRPA), the recommended level of service (LOS) for community parks is between 5 to 8 acres per 1,000 residents. Auburn currently averages only 3.14 acres per 1,000 residents, which is below this recommended standard. For neighborhood parks, the NRPA suggests an LOS of 1 to 2 acres per 1,000 residents, but Auburn’s current average is just 0.57 acres per 1,000 residents. This indicates a significant shortfall in the provision of both neighborhood and community parks relative to the city’s population.
Furthermore, the NRPA recommends 5 to 10 acres of open space per 1,000 residents, yet Auburn currently provides only 3.57 acres per 1,000 residents. When factoring in land managed by other organizations, such as King County’s Department of Natural Resources, this figure improves and aligns more closely with the recommended range.
Auburn exceeds expectations in total acreage due to the significant footprint of its Special-Use Facilities. This surplus is largely attributed to the inclusion of extensive environmental areas and the golf course, both of which are managed differently from traditional parks and offer limited access to the general public. While reclassifying the golf course as open space might enhance Auburn’s Level of Service (LOS) for open space, the specific use, management practices, and limited public access associated with the golf course support its continued classification as a special-use area.
In summary, while the overall size of Auburn’s park system aligns with general recommendations, there is a clear shortfall in the distribution of neighborhood and community parks. Additionally, while the city
maintains over 30 beautification areas that enhance its aesthetic appeal, these spaces do not replace the need for more neighborhood and community parks to meet national standards and adequately serve the recreational needs of Auburn’s residents.
Parklets / Mini Parks / Tot-Lots LOS
Analysis
Overview: These parks serve small areas, often a single neighborhood or part of one. They typically feature amenities like playgrounds, benches, and small open spaces with no restrooms. incorporating more parklets and mini-parks can be an effective strategy for addressing Level of Service (LOS) deficiencies, especially in urban areas where space is limited. These smaller parks can provide critical, but disconnected, green space, recreational opportunities, and social gathering spots within densely populated neighborhoods. They are often easier and quicker to implement than larger parks, making them a practical solution to improve accessibility and equity in park distribution. However, they generally require the same level of maintenance and operational purview as larger local or neighborhood parks and, factoring in the increased travel time, can potentially become a lrger burden on park staff.
Number: 13 parks
Acreage: 16.71 acres
Average Size: 1.28 acres
Target Size: Typically less than 1 acre
NRPA Target LOS: 0.25 to 0.5 acres per 1,000 residents
Current LOS (2024): 0.19 acres per 1,000 residents
Projected LOS (2044): 0.15 acres per 1,000 residents
Draft NEW LOS: 0.25 acres per 1,000 residents
Projected Deficit (Acres): 11.29 acres
Service Radius: 1/4 mile or less
Conclusion/Recommendations: To address the projected decline in the Level of Service (LOS) for mini-parks, parklets, and tot-lots, it is recommended that the City prioritize the strategic addition of these smaller park facilities only as opportunities arise. Currently, the LOS stands at approximately 0.19 acres per 1,000 residents, which close to NRPA’s minimum of .25, but without intervention, this will decrease to 0.15 acres per 1,000 residents by 2044. To maintain an adequate LOS, the City should aim to add approximately 11 acres of new park areas in this classification by 2044, ensuring continued access to these essential recreational spaces for the growing population.
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Neighborhood Parks LOS Analysis
Overview: Local or neighborhood parks serve as the recreational and social hubs of a neighborhood. These parks are designed to be accessible by foot or bicycle and typically feature amenities such as playgrounds, athletic fields, picnic areas, sports courts, and open play areas. Some parks may also include restrooms and other supportive facilities. Currently, there is a shortage of local or neighborhood parks based on current park classifications, but the total parkland acreage across the city exceeds the cumulative standard.
Number: 10 parks
Acreage: 51.23 acres
Average Size: 5.12 acres
Target Size: Generally 5 to 10 acres
NRPA Target LOS: 1 to 2 acres per 1,000 residents
Current LOS (2024): 0.57 acres per 1,000 residents
Projected LOS (2044): 0.45 acres per 1,000 residents
NEW LOS: 1 acres per 1,000 residents
Projected Deficit (Acres): 63.31 acres
Service Radius: 1/4 to 1/2 mile
Conclusion/Recommendations: The current Level of Service (LOS) for neighborhood parks in Auburn is 0.57 acres per 1,000 residents, which is projected to decline to 0.45 acres per 1,000 residents by 2044. This projected LOS falls significantly below the recommended minimum standard of 1 acre per 1,000 residents. To meet this new standard by 2044, Auburn will need to add approximately 63 acres of new neighborhood parks. This strategic addition is critical to ensuring that the growing population has sufficient access to neighborhood park facilities, maintaining a high quality of life and community well-being.
Community Park Inventory and
Needs Analysis
A community park is planned primarily to provide active and structured recreation op- portunities for young people and adults. They often exceed 10 acres in size and may have sports fields, water bodies, gardens, nature trails or similar features as the central focus of the park. Community parks can also provide indoor facilities to meet a wide range of recre- ation interests. They require more support facilities such as parking and restrooms than neighborhood parks. Community parks serve a much larger area than neighborhood parks and offer more facilities. Where there are no neighborhood parks, the community park can also serve the neighborhood park function. The
community park service area covers a one to two mile radius.
Community Parks LOS Analysis
Overview: Community parks serve broader community needs, often featuring larger facilities or arrays of facilities types, e.g., tournament baseball field complexes, and a wider range of amenities, such as swimming pools, and community centers that are intended to support the entire community. The number of community parks a city like Auburn, WA, should have depends on several factors, including NRPA guidelines, local demand, and geographic considerations. The target acreage for community parks typically ranges from 20 to 50 acres per park or 5-8 acres per 1000 residents, according to NRPA guidelines. Using those metrics, Auburn, WA, should have about 2 to 4 community parks based on its population, with an ideal total acreage between 40 - 200 acres. This ensures that the parks are large enough to accommodate a variety of amenities, such as sports fields, playgrounds, walking trails, and open spaces, while serving a significant portion of the population effectively.
Number: 14 parks
Acreage: 283.31 acres
Average Size: 20.2 acres
Target Size: Generally 20 to 50 acres
NRPA Target LOS: 5 to 8 acres per 1,000 residents
Current LOS (2024): 3.14 acres per 1,000 residents
Projected LOS (2044): 2.47 acres per 1,000 residents
NEW LOS: 3.5 acres per 1,000 residents
Projected Deficit (Acres): 116.69 acres
Service Radius: 1 to 2 miles
Conclusion/Recommendations: The current Level of Service (LOS) for community parks in Auburn is 3.14 acres per 1,000 residents, but it is projected to decline to 2.47 acres per 1,000 residents by 2044. This anticipated reduction highlights a significant shortfall, with a projected deficit of over 116 acres in this park classification. To meet the needs of Auburn’s growing population and maintain the recommended LOS, the City will need to prioritize the addition of these 116 acres of new community parks by 2044.
Future community park sites should be strategically selected in areas like West Hill and Lea Hill, where development is ongoing, and large gaps exist between existing parks. Additionally, other residential areas, particularly in the northeast and southeast corners of the City, are on the edges of existing service areas and will require new community park acquisitions and development as population growth continues.
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Two key sites, Jacobsen Tree Farm and the 104th Ave SE property along the Green River, offer significant potential for development into community parks. These sites account for 44 acres of undeveloped land that will be crucial in addressing the City’s parkland needs. The development of these areas into community parks will help close the gap in service coverage and ensure that Auburn’s residents continue to have access to ample recreational spaces, supporting the overall quality of life in the community.
Special Use Parks LOS Analysis
Overview: Unlike other recreational classifications, special use facilities serve very unique, often singular functions and include unique features that add depth and variety to the city’s recreational and open space amenities. By integrating these specialized spaces, Auburn creates a vibrant public landscape that reflects the city’s identity and enhances recreational opportunities for the community. Examples of these facilities include pocket landscape areas, community gardens, streetscapes, unique sections of the Environmental Park, viewpoints, historic sites, public art installations, and traffic islands.
Number: 14
Acreage: 307.69 acres
Auburn Average Size: 21.9 acres
Target Quanitity & Size: Varies depending on the facility type and use
Target LOS: Depends on community needs; not typically defined by a strict LOS but considered based on demand.
Service Radius: Typically serves the entire community or region.
Conclusion/Recommendations: Past and more recent survey comments indicate that residents have a strong desire to enhance the City’s aesthetics by increasing the planting of street trees, flowers, and other greenery. Integrating these beautification efforts, along with the development of additional special-use areas as opportunities arise, presents a valuable chance to improve the overall appearance of the community.
However, there are currently no specific targets or goals for purposefully developing more special-use areas. Introducing a significant number of small, specialized facilities could result in higher-than-expected maintenance and operational costs for the department. As development continues and additional land is acquired—including smaller, less usable areas within the public right-of-way—it is essential to remain vigilant in assessing these opportunities. Evaluating them for their unique, heritage, natural, and activity-centric qualities that could provide community value is recommended.
The Parks Department should continue collaborating with relevant departments to ensure that landscaping standards support the inclusion of street trees and other plantings, further integrating existing green spaces and improving their connectivity. This will not only enhance the city’s aesthetics but also contribute to public safety. Additionally, encouraging the development of boulevard-style streets in key locations can further improve the visual appeal and functionality of the urban environment.
Natural Resource Areas and
Greenways (Open Space)
Overview: Open space areas are vital for protecting and preserving natural landscapes, wildlife habitats, and green corridors. The purpose of these amenities is to maintain natural landscapes, safeguard wildlife habitats, and protect critical natural infrastructure, while also providing residents with opportunities for passive recreation and environmental education, such as hiking and birdwatching.
NRPA provides general guidelines for the amount and size of open space and natural areas within a community. Typically, these guidelines recommend that a city should maintain between 7 to 10 acres of open space and natural areas per 1,000 residents. For a city the size of Auburn, with a population of 90,096 (as of 2024), this would equate to approximately 630 to 900 acres of open space and natural areas. Currently, Auburn has 321 acres of dedicated open space areas. However, when considering other greenways and open spaces within the city that are not maintained by the City of Auburn, the total approaches the minimum target of 630 acres.
Given Auburn’s current inventory of open space areas available to residents, the city is close to meeting the lower range of the NRPA’s recommendations for open space and natural areas. Auburn’s commitment to preserving these areas aligns well with NRPA guidelines, and the city’s existing acreage of natural areas and open spaces is well-positioned to support the ecological and recreational needs of its residents. This ensures that Auburn continues to provide valuable natural amenities as the community grows.
Number: 6 Open Space and Natural Areas
Total Acreage: 321.42
Average Size: 53.57 acres
Target Acreage: 630-900 acres
NRPA Target LOS: 5 to 10 acres per 1,000 residents
Current LOS (2024): 3.57 acres per 1,000 residents
Projected LOS (2044): 2.81 acres per 1,000 residents
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NEW LOS: 4 acres per 1,000 residents
Projected Deficit (Acres): 136.58 acres
Service Radius: Typically regional, with users traveling farther to access these areas
Conclusion/Recommendations: Auburn’s current Level of Service (LOS) for open space areas is 3.57 acres per 1,000 residents as of 2024. However, with the city’s projected population growth, this LOS is expected to decline to 2.81 acres per 1,000 residents by 2044. This decrease places Auburn below both the National Recreation and Park Association’s (NRPA) target LOS of 5 to 10 acres per 1,000 residents and the City’s draft new LOS standard of 4 acres per 1,000 residents.
The decision to increase the LOS for open space reflects a growing recognition of the critical role these areas play in promoting climate change resiliency, managing flood hazards, supporting wildlife habitats, and mitigating the effects of urban heat on aging populations. As climate change continues to impact weather patterns, open spaces can serve as vital buffers, absorbing excess rainfall and reducing the risk of flooding, particularly in vulnerable areas along rivers and low-lying regions.
Furthermore, open spaces provide essential habitats for wildlife, helping to preserve biodiversity within the city. These natural areas are increasingly important as urbanization encroaches on green spaces, putting pressure on local ecosystems. By expanding and protecting open space, Auburn can help ensure that wildlife populations continue to thrive, maintaining ecological balance and enhancing the natural beauty of the community.
In addition to their environmental benefits, open spaces are crucial for the health and well-being of Auburn’s residents, especially as the population ages. Access to nature has been shown to reduce the effects of heat islands in urban areas, where concrete and asphalt trap heat, leading to higher temperatures. These elevated temperatures can be particularly harmful to older adults, who are more susceptible to heat-related illnesses. Expanding open space provides shaded areas and cooling effects that are vital for protecting vulnerable populations.
To meet the new LOS standard of 4 acres per 1,000 residents by 2044, Auburn will need to acquire and develop an additional 136.58 acres of open space. This strategic expansion is essential not only to meet recreational needs but also to ensure the city’s resilience in the face of climate change and urbanization. By investing in open spaces, Auburn can enhance its ability to manage environmental challenges, protect its natural heritage, and promote the long-term health and well-being of all its residents.
Trails LOS Analysis
Auburn, WA, boasts an extensive network of trails that weave through the city’s diverse landscapes, offering residents and visitors a range of recreational opportunities. These trails, often referred to as linear parks, typically follow natural and man-made features such as stream corridors, abandoned railroads, or power line easements. They serve multiple purposes, including providing pathways for walking, running, and biking, as well as creating interpretive areas, open spaces, and landscaped zones.
The city’s trail system is designed with minimal development to preserve the natural environment, focusing on essentials such as trailheads, educational signage, benches, and picnic tables. However, in areas with more space, like wide power line easements, there is potential for more extensive development, allowing for a broader range of recreational uses while still maintaining the primary function of these linear parks.
Auburn currently has 21 different trail segments of varying purposes covering a total of 21.96 miles across the city, however 6.75 miles of those trails are within existing parks (see Table 2-5.)
Total Miles of Trails (All): .25 to .5 miles per 1,000 residents
Total Miles of Trails (All): .25 to .5 miles per 1,000 residents
Expected NRPA Standard: .25 to .5 miles per 1,000 residents
Existing Ratio: Total: 0.28 miles per 1,000 residents
Existing Inventory: 21.96 miles
Current Need: 0.0 miles
Future Need (2044): 6.69 miles
NEW LOS: 0.125 miles per 1,000 residents
Conclusion/Recommendations: Auburn’s current ratio of 0.24 miles of developed trail parkland per 1,000 residents aligns closely with the minimum expected average. However, with the projected population increase, there is an anticipated need for an additional 6 miles of trails by 2044. Given the existing opportunities for new trail development and the high level of public interest in trails, it is recommended to slightly adjust the standard to 0.125 miles of developed trail parkland per 1,000 residents. Although Auburn’s current inventory of trails already exceeds the adopted standards, further expansion and development are essential to ensure connectivity across different areas of the city and beyond. The demand for an interconnected trail system is expected to grow, particularly as residents, especially post-pandemic, continue to express a strong interest in trails for
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recreation and as an alternative means of commuting, as identified in the Statewide Comprehensive Outdoor Recreation Plan (SCORP). This underscores the importance of enhancing Auburn’s trail network to meet the evolving needs of its community.
Future Trails/Linear Park Development:
There are several opportunities to develop additional trails and linear parks in Auburn providing local and regional trail systems. Considering the interest in trail activities as demonstrated by public invovlement results and national recreation trends, these additional trails are worth pursuing. Identified locations for potential loop trails within parks, new linear parks, or extensions of existing linear parks include:
BPA Power Line Easement (Lea Hill to Green River Road)
Green River TRail (Planned)
White River Trail (A Street to Interurban Trail)
Mill Creek Corridor
Rotary Park
Shaughnessy Park
Fulmer Park
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Goals & Objectives
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The Auburn Parks, Arts, and Recreation Department is dedicated to preserving the city’s natural beauty through a vibrant and well-maintained system of parks, open spaces, and trails. Our mission is to enrich the lives of Auburn’s residents by providing diverse recreational and cultural opportunities that foster a strong sense of community, promote health and well-being, and celebrate the unique natural landscapes that define our city.
The goals and objectives outlined in this chapter have been meticulously crafted to align with the requirements of the Growth Management Act (GMA) and are the result of an extensive and thoughtful planning process. This process drew upon a range of valuable resources, including insights from the 2015
Park, Arts, and Recreation Open Space Plan, findings from the 2023 Parks, Recreation, and Open Space Survey, and input from dedicated Parks and Recreation staff. Additionally, we carefully analyzed recreation trends, participation rates, and the current state of our parks to ensure that these goals are both forward-looking and responsive to the evolving needs of our community.
Through this comprehensive approach, we aim to create a park system that not only meets the present demands but also anticipates future growth and challenges. Our commitment is to maintain and enhance Auburn’s parks and recreation offerings, ensuring that they continue to serve as vital community assets for generations to come.
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Goal 2: Provide a balanced mix
of passive and active recreation
opportunities to promote healthy
and balanced activities.
The Auburn Parks and Recreation Department recognizes the importance of offering diverse recreational opportunities that cater to all residents. To promote a healthy and balanced lifestyle, our goal is to provide a well-rounded mix of both active and passive recreation options. This approach ensures that everyone, regardless of their activity level, can enjoy and benefit from the City’s parks and recreational facilities.
Goal 2: Objectives
2A. Develop a park system that provides facilities for social, cultural and physical activities.
2B. Provide parks areas that accommodate passive recreation opportunities such as picnicking and walking.
2C. Provide park areas that accommodate active recreation such as ballfields, skate parks, spray parks, sports courts, etc.
2D. Track changing trends at the local, state, and national levels. Respond with appropriate programs and facilities to meet changing needs as funding and budgets are available and meet the level of service expectations of the residents of Auburn.
2E. Provide access to healthy foods through the continued operation of the Auburn Farmer’s Market and Community Gardens.
GOAL 1: Serve all residents and provide
a broad range of programs and
facilities in order to serve all residents
regardless of age or ability.
The Auburn Parks, Arts, and Recreation Department is committed to providing accessible leisure and recreational programs for all residents, with a focus on accommodating special needs. To ensure awareness of these programs, the City has adapted its marketing strategies, blending innovative social media with traditional outreach to engage the community effectively.
Goal 1: Objectives
1A. Provide a variety of recreation facilities and programs that will improve the physical and mental well being of community members.
1B. Provide a system of neighborhood and community parks so that residents live within a half mile walking distance to a developed park.
1C. Develop multi-use facilities to increase flexibility to meet recreational trends as demonstrated by community input.
1D. Continue to identify under-served segments of the population and develop programs that will satisfy unmet needs.
1E. Develop marketing strategies allowing the widest possible distribution of information concerning park facilities and recreation programs.
1F. Provide programs and facilities designed for maximum affordability to local residents.
1G. Continue to improve upon and expand the Fee Waiver and Scholarship Programs, where possible, to allow more low income youth and seniors to participate at reduced rates.
1H. Continue to improve access for the disabled and seniors by providing wheelchair ramps and other appropriate facilities in parks where they do not currently exist.
1I. Continue to maintain an open decision-making process that allows opportunity for resident input.
1J. Parks and Recreation Department staffing levels shall be sufficient to maintain and improve the existing cultural and recreation programs. As programs expand or additional parks are developed, the impact on current staff levels and the need for additional staff will be evaluated.
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Goal 3: Provide a system of high
quality parks that are well
maintained and aesthetically
Pleasing.
Parks are one of the most visible public features in a City, their design and maintenance can influence people’s perceptions of the community. Long term maintenance, good design, and the use of high quality materials will all affect the appearance of a park for years to come.
Goal 3: Objectives
3A. Develop Level of Service Standards that are consistent with NRPA standards to assure that residents’ expectations are met.
3B. Parks shall be intentionally designed to require low maintenance, and low water and energy consumption. Higher maintenance features like fountains or annual beds are reserved for high visibility locations or as appropriate.
3C. Select environmentally friendly materials that are durable and aesthetically pleasing.
3D. Parks shall exhibit a “cared for” appearance through close attention to maintenance.
3E. In order to maintain parks in a safe and attractive condition, maintenance staff levels will be evaluated with additions of new park land or facilities.
3F. Renovate deteriorating features. Identify conditions that require redesign or construction of new facilities; schedule and budget necessary changes in the City’s Capital Facilities Plan.
3G. Conduct regularly scheduled inspections to identify necessary repairs and upgrades to ensure safe conditions.
Goal 4: Provide a park system that
contributes to a positive city image
for Auburn.
Auburn’s Comprehensive Plan contains goals and objectives to enhance the City’s identity by ensuring a quality visual environment. Parks are an effective tool in improving visual appearance, but many of Auburn’s parks are tucked away in residential neighborhoods, unseen and unknown except to residents. This lack of visibility hinders the parks from effectively contributing to the city’s overall appearance. Increased visibility and high quality design are paramount to “advertising” our community as a good place in which to live and work.
Goal 4: Objectives
4A. Select new park sites with high visibility and access. This may be accomplished by locating at least one side of larger parks along arterial streets.
4B. Increase the quantity of trees, shrubs and ground covers in parks.
4C. Continue to work on Tree City USA goals for better Urban Forestry design and tree preservation.
4D. Create a green spaces in the downtown core that will be a focal point for community activities and stimulate economic growth.
4E. Incorporate artwork as part of new park development or when upgrading existing parks or other public facilities.
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Goal 5: Acquire and manage
important open spaces in the City of
Auburn.
Undeveloped open spaces contribute to the well-being of our community in many ways. We value them for their ability to provide buffers from urban encroachment; to provide opportunities for recreation; to provide public access to creeks, rivers and other water bodies; to create distinctive settings within the city; to provide connections between different areas for both people and wildlife; as well as offering health and safety benefits.
Goal 5: Objectives
5A. Maintain and protect a system of forested corridors and buffers to provide separation between natural areas and urban land uses.
5B. Target significant open space areas in the City, with emphasis on their planning and acquisition. Target areas include the land along the Green and White Rivers, steep hillsides, Mill Creek Corridor and West Hill Watershed.
5C. Explore all possible funding mechanisms to enable the acquisition of open space on a regular basis to identify properties as they become available.
5D. City owned open space lands shall be accessible to the public wherever possible and appropriate.
5E. Provide adequate management and maintenance of public open spaces, ensuring their ability to provide environmental benefits and wildlife habitat.
5F. When mitigation is required, develop a monitoring and maintenance plan to ensure successful establishment.
5G. Involve the community in habitat restoration activities through the City’s annual Clean Sweep event, community service days, and an adopt a park program.
5H. Determine the ecosystem service value reach open space and park space continues to address climate resiliency goals.
Goal 6: Provide a network of
pedestrian and bicycle trails.
To enhance Auburn’s recreational and transportation infrastructure, we aim to create a comprehensive network of bike and pedestrian trails that serves both commuters and recreational users. This network will be strategically developed to connect key areas within the city and extend to neighboring communities. By prioritizing the acquisition of land, especially along the Green River, and focusing on trail designs that highlight Auburn’s unique natural landscapes, we can offer diverse experiences to residents and visitors alike. Our commitment also includes ensuring accessibility for all users, enhancing safety through thoughtful design, and implementing a cohesive wayfinding system. To sustain this network, securing ongoing funding for maintenance will be essential. Through these objectives, Auburn will establish a robust and interconnected trail system that promotes active transportation, environmental stewardship, and community well-being.
Goal 6: Objectives
6A. Develop a network of trails created or extended to provide adequate coverage for both commuting and recreational cyclists. Locations for east/west trails shall be identified and developed.
6B. Acquisition of land for the proposed Green River Trail shall continue to be a priority.
6C. Trail design and layout shall take advantage of unique natural locations and provide access to a variety of landscapes and habitats.
6D. Participate in planning activities for regional trails in South King County and North Pierce County.
6E. Explore possibilities for new trail connections between Auburn and neighboring communities.
6F. Develop and maintain trails to comply with Americans with Disabilities Act.
6G. Provide safe trail system by discouraging crime through environmental design concepts.
6H. Develop a standardized interpretive and way-finding program to be used through- out our trail system.
6I. Identify and provide funding to maintain existing trail systems.
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Goal 8: Establish park and trail levels
of service provided in the PROS plan.
To ensure Auburn’s parks and recreational spaces continue to meet the needs of a growing population, we are committed to maintaining a consistent level of investment per capita. Currently, the City provides over 10 acres of parkland per 1,000 residents, a standard we aim to uphold even as our community expands. By sustaining this investment, Auburn will preserve its high quality of life and ensure that all residents have ample access to well-maintained and accessible parks and green spaces.
Goal 8: Objectives
8A. Fields, Courts, Tracks, Gyms: Improve the
equivalent population per Auburn facility type based
on expected demand and need ideintified by public survey responses.
8B. Informal Recreation Facilities: Increase the number of Picnic Shelters, Off Leash Areas, Playgrounds, Paths, Community Gardens, Flexible Open Turf Areas, Gathering Spaces and Amphitheaters: Resident equivalent population per facility consistent with the current ratio.
8C. Trails: Increase the number of per trail miles to be consistent with .25 miles per 1000 residents.
8D. Parks: Maintain a minimum total parkland Level of Service (LOS) of over 10 acres per 1,000 residents, regardless of park classification.
Goal 7: Expand our existing park
inventory where level of service
standards are not being met, with an
emphasis on the West Hill and Lea Hill
areas of the City.
Our goal is to prioritize the development of community and linear parks with trail systems, focusing on larger, multi-use spaces to meet Auburn’s diverse needs. We will actively pursue funding to acquire and preserve key parklands, emphasizing shoreline properties for public access. To minimize land use conflicts, particularly in residential areas, we will implement thoughtful design and strategic placement. High-quality design standards will guide new park developments, supported by comprehensive Master Plans and public input. Additionally, we aim to create vibrant public gathering spaces in the downtown core to enhance community life.
Goal 7: Objectives
7A. Make the development of community parks and linear parks with trail systems a priority over small neighborhood parks when possible and appropriate.
7B. Apply for King County Conservation Futures and Recreation & Conservation Office grants and other available funding sources to acquire and preserve park land and natural areas.
7C. Acquisition of community amenities, such as shoreline property, shall be emphasized, to preserve or allow public access to these special places.
7D. Minimize land use conflicts between parks and other uses, and use sensitive design measures when locating parks in residential neighborhoods.
7E. Criteria for new park development ensures consistent high quality design meeting the needs of the community.
7F. Develop Master Plans for undeveloped park properties and incorporate future park development costs into the Capital Facilities plan as appropriate.
7G. Schedule public meetings as a part of the Master Planning process to ensure that residents’ voices are heard and needs are met when developing new parks.
7H. Develop public gathering spaces in the downtown core.
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Capital Improvement
Program
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The vision articulated in this PROS Plan is not only a mandate of the Growth Management Act but is also essential to enhancing the quality of life and driving economic development in the City of Auburn. This plan is both pragmatic, addressing the immediate needs of current residents, and forward-looking, preparing the park system to meet future demands while delivering economic, social, and environmental benefits. This section outlines the City’s approach to incorporating public feedback through a comprehensive Capital Improvement Program (CIP), presented initially in tabular form and followed by detailed descriptions of conceptual improvements planned for the next six years.
Serving as a crucial blueprint, this plan significantly impacts residents’ quality of life via Auburn’s Parks & Recreation system. The effective administration of these services by the City’s limited staff requires a committed allocation of budget resources. Realizing this vision also depends on grant funding and the continued dedication of community volunteers. Annual investments in personnel, equipment, and supplies are vital for maintaining a diverse range of outdoor recreational opportunities, ensuring safety, and meeting public expectations.
Aligned with Auburn’s strategic goals and integrated
into the principles of the Comprehensive Plan, this PROS Plan promotes a safe, healthy, and walkable community, cultural enrichment, and environmental conservation, reflecting the aspirations and quality of life desired by the city’s residents.
This section emphasizes Auburn’s commitment to addressing public feedback and improving system deficiencies by detailing a comprehensive CIP. This program includes specific park-related projects and broader recommendations aimed at closing service gaps. The proposals, summarized in tables and elaborated upon in detail, outline enhancements and conceptual improvements scheduled for implementation over the next six years. Additionally, the inclusion of long-term visionary projects shows a readiness to seize opportunistic improvements based on market conditions or funding availability.
At the core of this plan are key recommendations designed to address current challenges, anticipate future needs, maximize funding flexibility, and align with public preferences. It thoroughly considers the range of parks and recreation amenities available within the city, ensuring that Auburn’s park system evolves in a balanced and sustainable manner.
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Developing The Capital
Improvement Program
This plan spans a six-year period from 2024 through 2030, aiming to guide park and recreation improvements while also presenting a conceptual vision for additional long-term enhancements aligned with Auburn’s projected growth. It is designed to be flexible and dynamic, recognizing that funding availability, public needs, and political priorities may shift over time. As such, the plan is not a rigid script but rather a strategic guide adaptable to unforeseen opportunities that may better serve the public.
The listed capital improvement projects are initially categorized into six-year and long-term (20-year) CIP lists based on specific recommendations. However, the implementation timeline is subject to various factors, including design and permitting durations, other critical public works projects, grant funding cycles, available budgets, and city staff capacity. These timelines are for planning purposes only and do not represent a commitment to implementation in any particular year. The plan should remain a living document, continually updated as conditions evolve.
The CIP project list reflects public demand and needs, validated through input from city staff, commission members, and the City Council. The actual implementation over the next six years will depend on available funding, success in securing grants, and essential maintenance and repair needs. In developing the CIP, several aspects were considered to ensure it is robust yet flexible, capable of adapting to changing circumstances and opportunities.
Strategic Project Development
and Funding Opportunities
Improving the parks system is a collaborative effort, not solely reliant on city funding. Auburn should actively pursue grants and donations from various sources to maximize public investment in parks, recreation, and open space facilities. Specific improvements should be matched with appropriate Recreation Conservation Office programs, such as the Youth Athletic Field or Land Water Conservation Fund grants, which have a history of being funded. Additionally, many trail and access projects can integrate with Safe Route to School grants and other transportation-related projects. Combining park projects with transportation and economic development initiatives will enhance implementation flexibility and open up further funding opportunities from county, state, and federal programs.
Auburn’s Fiscal Sources
Auburn, WA’s parks budget is supported by a diverse mix of funding sources. The City’s General Fund, which includes revenues from property and sales taxes, is a primary source of funding for the Parks, Arts, and Recreation Department. Additional revenue comes from fees collected for recreational programs, facility rentals, and special events. The City also actively pursues grants from sources like the Washington State Recreation and Conservation Office (RCO), King County Conservation Futures, and federal programs such as the Land and Water Conservation Fund (LWCF). To address the demands of population growth, Auburn charges impact fees on new developments to fund the expansion of parks and recreational facilities. The budget is further supplemented by a portion of the Real Estate Excise Tax (REET) and a dedicated sales tax, which is 1/10th of 1% of the countywide sales tax. Occasionally, the City issues bonds for large-scale park projects, which are repaid over time. Additional funding comes from donations, sponsorships, and partnerships with local businesses, non-profits, and other governmental agencies, all of which contribute to maintaining and enhancing Auburn’s park system.
Estimate of Probable Cost
This CIP includes preliminary estimates of construction costs for recommended improvements at each park and city-wide. These estimates are intended for budgeting and scoping future design and construction projects and are subject to change based on site conditions, final design, and market circumstances. The estimates are based on current park master planning projects and include considerations for inflation, annual cost escalators, design contingencies, permitting, and other soft costs. However, staff time costs are not included in these estimates.
Performance and Monitoring
Auburn’s plan addresses the level of service and needs for parks, recreation, open spaces, and trails identified at the time of the plan’s creation. Recognizing the dynamic nature of communities and outdoor spaces, this plan is designed to be flexible and adaptable in its implementation. To monitor progress and adapt to changing circumstances, including new grant and funding sources, the following actions should be taken annually during the capital improvement budgeting cycle:
Annual Prioritization Review:
City staff and volunteers should conduct annual evaluations to determine if any changes to the park system are necessary, especially considering funding availability or demographic shifts.
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 80
Plan Update:
Beginning in early-to-mid 2030, a formal update process should engage Auburn residents, staff, and committee members to review changing service needs, propose new capital improvements, and renew eligibility for the Washington Recreation and Conservation Office (RCO) programs for the next performance period. By maintaining this proactive and adaptive approach, Auburn can ensure that its parks and recreational facilities continue to meet the evolving needs of its community.
Park Development:
The development of more mini-parks (under one or two acres) is not encouraged. Mini-parks have not been found to be as successful as larger community parks, because they tend to serve very small populations and are difficult and expensive to maintain. Developers may have the opportunity to develop neighborhood parks that are maintained by the local homeowners association but meet the City’s park standards.
Unforeseen Threats to the CIP
Strategy
Several unforeseen threats could impact the strategy and implementation of Auburn’s Capital Improvement Program (CIP):
Economic Downturns:
A significant economic recession could reduce available funding from local, state, and federal sources, impacting the ability to finance planned projects. Natural Disasters: Events such as earthquakes, floods, or wildfires could damage existing infrastructure and necessitate reallocation of funds for emergency repairs and rebuilding efforts. Pandemics or Public Health Crises: Situations similar to the COVID-19 pandemic could disrupt project timelines, reduce workforce availability, and shift funding priorities towards health and safety measures. Policy and Regulatory Changes: New laws or regulations at the local, state, or federal level could alter funding eligibility, increase costs, or impose new requirements on project implementation. Environmental Issues: Unforeseen environmental challenges, such as soil contamination or endangered species habitats, could delay or complicate project execution. Community Opposition: Public opposition or legal challenges to specific projects could result in delays or necessitate project modifications. Technological Changes: Rapid advancements in technology may require updates to project plans or could render certain planned improvements obsolete.
Market Fluctuations: Changes in the cost of materials and labor due to market volatility can significantly impact project budgets and timelines. Considering these potential threats, the CIP must remain adaptable, ensuring that Auburn can respond effectively to changing conditions and continue to meet the needs of its residents.
Page 1107 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 81
Table 5-1: Capita;l Facilities Plan Projects & Financing
Municipal Parks Construction Fund
(See the Capital Facilities Plan sheets for details on the following numbers.)
Capacity Projects:2025 2026 2027 2028 2029 2030 Total
Auburndale Park II
Capital Costs - - $125,000 - $2,000,000 - $2,125,000
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) - - - - $1,000,000 - $1,000,000
Other (TBD) - - $125,000 - $1,000,000 - $1,125,000
BPA Trail on Lea Hill
Capital Costs - - - - 150,000 - $150,000
Funding Sources:
Fund Balance - - - - 150,000 - $150,000
Grants (Fed,State,Local) - - - - - - -
KC Prop 2 - - - - - - -
Fulmer Park Turf Fields
Capital Costs - - - - - - -
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) - - 1,800,000 - - - 1,800,000
Park Impact Fees - - - - - - -
KC Prop 2 - - - - - - -
Game Farm Park Improvements
Capital Costs 200,000 - - - - - 200,000
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) 200,000 1,500,000 - - - - 1,700,000
Park Impact Fees - 500,000 - - - - 500,000
Jacobsen Tree Farm Development
Capital Costs 125,000 5,000,000 - - 5,000,000 - 10,125,000
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) - 1,000,000 - - 1,000,000 - 2,000,000
KC Prop 2 - - - - - - -
Other (TBD) - 2,000,000 - - 2,000,000 - 4,000,000
Park Impact Fees 125,000 2,000,000 - - 2,000,000 - 4,125,000
Page 1108 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 82
Table 5-1: Capita;l Facilities Plan Projects & Financing
Municipal Parks Construction Fund
(See the Capital Facilities Plan sheets for details on the following numbers.)
Capacity Projects:2025 2026 2027 2028 2029 2030 Total
Lakeland Hills Nature Area
Capital Costs - - 400,000 - - - 400,000
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) - - 200,000 - - - 200,000
Park Impact Fees - - 200,000 - - - 200,000
Miscellaneous Parks Improvements
Capital Costs 150,000 150,000 150,000 150,000 150,000 150,000 900,000
Funding Sources:
Fund Balance 50,000 50,000 50,000 50,000 50,000 50,000 300,000
Grants (Fed,State,Local) - - - - - - -
KC Prop 2 150,000 150,000 150,000 150,000 150,000 150,000 900,000
Park Impact Fees 100,000 100,000 50,000 50,000 50,000 50,000 400,000
Park Acquisitions/Development
Capital Costs 125,000 125,000 125,000 125,000 125,000 125,000 750,000
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) - - - - - - -
KC Prop 2 125,000 125,000 125,000 125,000 125,000 125,000 750,000
Sunset Park Improvements
Capital Costs - - - - - - -
Funding Sources:
Fund Balance - - - - - - -
Park Impact Fees 350,000 - 1,500,000 - - - 1,850,000
Other (TBD) - - 500,000 - - - 500,000
West Hill Park Acquisition and Development
Capital Costs - - 750,000 1,000,000 - - 1,750,000
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) - - 400,000 500,000 - - 900,000
Park Impact Fees - - 350,000 500,000 - - 850,000
Page 1109 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 83
Table 5-1: Capita;l Facilities Plan Projects & Financing
Municipal Parks Construction Fund
(See the Capital Facilities Plan sheets for details on the following numbers.)
Capacity Projects:2025 2026 2027 2028 2029 2030 Total
Subtotal, Capacity Projects:
Capital Costs 600,000 5,275,000 1,550,000 1,275,000 7,425,000 275,000 16,400,000
Non-Capacity Projects:
Dykstra Footbridge
Capital Costs - - - - - - -
Funding Sources:
Fund Balance - - - - - - -
ARPA funding 40,000 - - - - - 40,000
Other (TBD) - - - - - - -
Fairway Drainage Improvement
Capital Costs 30,000 30,000 30,000 30,000 30,000 30,000 180,000
Funding Sources:
Fund Balance - - - - - - -
Grants (Fed,State,Local) - - - - - - -
REET 2 30,000 30,000 30,000 30,000 30,000 30,000 180,000
Capacity Projects:2025 2026 2027 2028 2029 2030 Total
Capacity Projects 600,000 5,275,000 1,550,000 1,275,000 7,425,000 275,000 16,400,000
Non-Capacity Projects 30,000 30,000 30,000 30,000 30,000 30,000 180,000
Total Costs 630,000 5,305,000 1,580,000 1,305,000 7,455,000 305,000 16,580,000
Fund Balance 50,000 50,000 50,000 50,000 200,000 50,000 450,000
Grants (Fed,State,Local) 200,000 2,500,000 2,400,000 500,000 2,000,000 - 7,600,000
Grants - Private - - - - - - -
KC Prop 2 275,000 275,000 275,000 275,000 275,000 275,000 1,650,000
ARPA funding 40,000 - - - - - 40,000
Park Impact Fees 575,000 2,600,000 2,100,000 550,000 2,050,000 50,000 7,925,000
REET 2 30,000 30,000 30,000 30,000 30,000 30,000 180,000
Other (TBD) - 2,000,000 625,000 - 3,000,000 - 5,625,000
Total Funding 1,170,000 7,455,000 5,480,000 1,405,000 7,555,000 405,000 23,470,000
Page 1110 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 84
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Brannan Park Improvements
Project No:
Project Type: Capacity
Project Manager: Thaniel Gouk
Description:
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund - - - - -
Grants- Secured (Fed,State,Local)- - 300,000 - 300,000
Impact Fees - - - - -
REET - - - - -
Other - - - - -
- - 300,000 - 300,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - - - - -
Grants- Secured (Fed,State,Local)- - - 1,000,000 1,300,000
Impact Fees - - - 500,000 500,000
REET - - - - -
Other - - - - -
- - - 1,500,000 1,800,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Grants / Other Sources:
Court upgrades, trail improvements, and new synthetic fields.
Progress Summary:
Future Impact on Operating Budget:
Increased utility costs of $2,000; lessened maintenance requirements for grass fields.
Total Expenditures:
Total Funding Sources:
Total Expenditures:
Forecasted Project Cost:
Total Funding Sources:
Page 1111 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 85
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Golf Course Maintenance Building
Project No:
Project Type: Capacity
Project Manager:
Description:
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund - - - - -
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
REET - - - - -
Other - - - - -
- - - - -
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - 350,000 - - 350,000
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
REET - 300,000 - - 300,000
Other - - - - -
- 650,000 - - 650,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Grants / Other Sources:
Replace dilapited mainteance building at the Auburn Golf Course.
Progress Summary:
Future Impact on Operating Budget:
None
Total Expenditures:
Total Funding Sources:
Total Expenditures:
Forecasted Project Cost:
Total Funding Sources:
Page 1112 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 86
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Auburndale Park II
Project No:gpbd05
Project Type:Capacity
Project Manager:Thaniel Gouk
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
REET - - - - -
Other TBD - - - - -
- - - - -
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Secured (Fed,State,Local)- - 1,000,000 - 1,000,000
Bond Proceeds - - - - -
REET - - - - -
Other TBD 125,000 - 1,000,000 - 1,125,000
125,000 - 2,000,000 - 2,125,000
Capital Expenditures:
Design 125,000 - - - 125,000
Right of Way - - - - -
Construction - - 2,000,000 - 2,000,000
125,000 - 2,000,000 - 2,125,000
Grants / Other Sources:
Description:
Develop a Master Plan, improve the existing trail system and install signage and play structure.
Progress Summary:
Future Impact on Operating Budget:
Increased utility costs of $2,000
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Total Funding Sources:
Page 1113 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 87
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: BPA Trail on Lea Hill
Project No:gpbd23
Project Type:Capacity
Project Manager:Thaniel Gouk
Description:
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Unsecured (State RCO)- - - - -
Bond Proceeds - - - - -
REET - - - - -
Other (KC Prop. 2)*- - - - -
- - - - -
Capital Expenditures:
Predesign - - - - -
Design - - - - -
Construction - - - - -
- - - - -
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance - - 150,000 - 150,000
Grants- Unsecured (State RCO)- - - - -
Bond Proceeds - - - - -
REET - - - - -
Other (KC Prop. 2)*- - - - -
- - 150,000 - 150,000
Capital Expenditures:
Predesign - - 25,000 - 25,000
Design - - 125,000 - 125,000
Construction - - - - -
- - 150,000 - 150,000
Grants / Other Sources:
None
Develop a feasibility study related to constructability of a pedestrian trail linking the Jacobsen Tree Farm site to the west end
of Lea Hill. This trail would follow the alignment of the Bonneville Power Administration (BPA) transmission lines from 132nd
to 108th Avenue SE. Construction would be in phases based on constructability.
Progress Summary:
Future Impact on Operating Budget:
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Total Funding Sources:
Page 1114 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 88
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Cedar Lanes Pump Track & Amenities
Project No:cp2127
Project Type:Capacity
Project Manager:Thaniel Gouk
Description:
Progress Summary:
None
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund 49,805 371,143 - - 420,948
KC Youth Sports Grant (Secured)- 349,920 - - 349,920
Unsecured grant - - - - -
REET - - - - -
Park Impact Fees 63,914 271,586 - - 335,500
Total Funding Sources:113,719 992,649 - - 1,106,368
Capital Expenditures:
Design 54,557 - - - 54,557
Right of Way - - - - -
Construction 59,162 992,649 - - 1,051,811
Total Expenditures:113,719 992,649 - - 1,106,368
Forecasted Project Cost:
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - - - - -
KC Youth Sports Grant (Secured)- - - - -
Unsecured grant - - - - -
REET - - - - -
Park Impact Fees - - - - -
Total Funding Sources:- - - - -
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
Total Expenditures:- - - - -
Grants / Other Sources:
Construct a bike park, pavilion/storage building, and restroom at Cedar Lanes Park. Bike park to include an asphalt pump track
and skills course.
Future Impact on Operating Budget:
Evergreen Mountain Bike Alliance completed the bicycle skills course in Spring 2023. Diversified Holdings NW completed the
pump track in early 2024. Pavilion/storage building and new restroom will be completed in Summer 2024.
2024 YE Estimate column includes
forward requests and BA#4 $150k Parks Impact
Fees. Please update expenditures portion
accordingly,
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 89
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Fulmer Park Playground Replacement
Project No:cp2128
Project Type:Capacity/Non-Capacity
Project Manager:Thaniel Gouk
Description:
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund 201,190 - - - 201,190
Grants- Private - - - - -
State Grant - - - - -
Local Grant 25,000 - - - 25,000
Impact Fees - 100,000 - - 100,000
REET - - - - -
KC Prop 2 - - - - -
226,190 100,000 - - 326,190
Capital Expenditures:
Design - - - - -
Demolition 11,412 - - - 11,412
Construction 214,778 - - - 214,778
226,190 - - - 226,190
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - - - - -
Grants- Private 600,000 - - - 600,000
State Grant 600,000 - - - 600,000
Local Grant 600,000 - - - 600,000
Impact Fees - - - - -
REET - - - - -
KC Prop 2 - - - - -
1,800,000 - - - 1,800,000
Capital Expenditures:
Design - - - - -
Demolition - - - - -
Construction - - - - -
- - - - -
Grants / Other Sources:
Replace existing grass athletic field with synthetic field and other miscellaneous park improvements.
Progress Summary:
Dilapidated playground structure was replaced with a larger one in 2023.
Future Impact on Operating Budget:
None
Total Expenditures:
Total Funding Sources:
Total Expenditures:
Forecasted Project Cost:
Total Funding Sources:
Page 1116 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 90
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Game Farm Park Improvements
Project No: cp1924, cp2212
Project Type:Capacity
Project Manager:Daryl Faber
Activity:
2025 Year EndFunding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Unsecured State - - - 1,000,000 -
Grants- Unsecured Local -KCYSF 150,000 150,000 200,000 500,000 500,000
REET 1 964,476 - - - 964,476
Park Impact Fees 294,012 185,524 - 500,000 479,536
1,408,488 335,524 200,000 2,000,000 1,944,012
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction 1,416,628 - 200,000 - 1,616,628
1,416,628 - 200,000 - 1,616,628
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Unsecured State - - - - 1,000,000
Grants- Unsecured Local -KCYSF - - - - 700,000
REET 1 - - - - -
Park Impact Fees - - - - 500,000
- - - - 2,200,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - 200,000
- - - - 200,000
Grants / Other Sources: King County Youth Sports Facilities Grant
Description:
None
Improve interior lighting and pathways and provide access from the newly acquired property on southwest corner of the park.
The project will also add lighting to pickleball and basketball court. New turf infields.
City completed resurfacing project on the turf fields in early 2021. 2022 budget will fund irrigation improvements. Future
improvements to include lighting for the pickleball and basketball courts; a grant has been applied for the lighting
improvements.
Future Impact on Operating Budget:
Progress Summary:
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Total Funding Sources:
Page 1117 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 91
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Jacobsen Tree Farm Development
Project No:cp0609, cp2020
Project Type:Capacity
Project Manager:Daryl Faber
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance 25,321 333,500 - - 358,821
Grants- Unsecured State - - - 1,000,000 -
King County Prop 2 14,165 - - 14,165
Park Impact Fees - - 125,000 2,000,000 125,000
Other (TBD)- - 2,000,000 -
39,486 333,500 125,000 5,000,000 497,986
Capital Expenditures:
Design 39,486 125,000 500,000 164,486
Right of Way - - - - -
Construction - - 4,500,000 -
39,486 - 125,000 5,000,000 164,486
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Unsecured State - - 1,000,000 - 2,000,000
King County Prop 2 - - - - -
Park Impact Fees - - 2,000,000 - 4,125,000
Other (TBD)- - 2,000,000 - 4,000,000
- - 5,000,000 - 10,125,000
Capital Expenditures:
Design - - 500,000 - 1,125,000
Right of Way - - - - -
Construction - - 4,500,000 - 9,000,000
- - 5,000,000 - 10,125,000
Grants / Other Sources:
Description:
Progress Summary:
Develop the 29.3 acre site into a Community Park. A Master Plan for the park was completed in 2009 and an updated
drawing would need to be done to reflect updated community needs.
Future Impact on Operating Budget:
No significant impact due to master plan. Future park development will result in maintenance and utility expenses
undeterminable at this time.
Total Funding Sources:
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Page 1118 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 92
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Lakeland Hills Nature Area
Project No:gpbd11
Project Type:Capacity
Project Manager:Daryl Faber
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Unsecured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
Park Impact Fees - 25,000 - - 25,000
Park Mitigation Fees - - - - -
- 25,000 - - 25,000
Capital Expenditures:
Design - 25,000 - - 25,000
Right of Way - - - - -
Construction - - - - -
- 25,000 - - 25,000
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Unsecured (Fed,State,Local)200,000 - - - 200,000
Bond Proceeds - - - - -
Park Impact Fees 200,000 - - - 200,000
Park Mitigation Fees - - - - -
400,000 - - - 400,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction 400,000 - - - 400,000
400,000 - - - 400,000
Grants / Other Sources:
Description:
Increased maintenance costs of $5,000
Complete Master Plan to include the development and construction of an environmental community park. Trails, fencing,
parking and visitor amenities are included in the project.
Future Impact on Operating Budget:
Progress Summary:
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Total Funding Sources:
Page 1119 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 93
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Les Gove Park Improvements
Project No:cp2232
Project Type:Capacity
Project Manager:Thaniel Gouk
Description:
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund - - - - -
ARPA funding 28,626 79,430 - - 108,056
Grants- Secured (Fed,State,Local)- 100,000 - - 100,000
Bond Proceeds - - - - -
REET - - - - -
Other - - - - -
28,626 179,430 - - 208,056
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction 28,626 179,430 - - 208,056
28,626 179,430 - - 208,056
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - - - - -
ARPA funding
Grants- Secured (Fed,State,Local)750,000 - - - 750,000
Bond Proceeds 750,000 - - - 750,000
REET 750,000 - - - 750,000
Other - - - - -
2,250,000 - - - 2,250,000
Capital Expenditures:
Design 100,000 - - - 100,000
Right of Way - - - - -
Construction 1,400,000 - - - 1,400,000
1,500,000 - - - 1,500,000
Grants / Other Sources:
Construction of a covered multi-use pavilion building at the south end of Les Gove Park. Uses could include pickleball, farmers market,
among others.
Progress Summary:
Future Impact on Operating Budget:
Increased utility costs of $2,000
Total Expenditures:
Total Funding Sources:
Total Expenditures:
Forecasted Project Cost:
Total Funding Sources:
Page 1120 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 94
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Miscellaneous Parks Improvements
Project No:various, gpbd03
Project Type:Capacity/Non-Capacity
Project Manager:Daryl Faber
Activity:
(Previous 2 Yrs.)2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance 55,033 297,400 50,000 50,000 402,433
Grants- Unsecured State - - - - -
Local Grant - - - - -
KC Prop 2 - 50,000 150,000 150,000 200,000
Other (Park Impact Fee)25,000 213,869 100,000 100,000 338,869
80,033 561,269 300,000 300,000 941,302
Capital Expenditures:
Professional Services - - - - -
Right of Way - - - - -
Construction 80,033 561,269 150,000 150,000 791,302
80,033 561,269 150,000 150,000 791,302
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance 50,000 50,000 50,000 50,000 300,000
Grants- Unsecured State - - - - -
Local Grant - - - - -
KC Prop 2 150,000 150,000 150,000 150,000 900,000
Other (Park Impact Fee)*50,000 50,000 50,000 50,000 400,000
250,000 250,000 250,000 250,000 1,600,000
Capital Expenditures:
Professional Services - - - - -
Right of Way - - - - -
Construction 150,000 150,000 150,000 150,000 900,000
150,000 150,000 150,000 150,000 900,000
Grants / Other Sources:
Description:
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Total Funding Sources:
Minor park improvements including shelters, roofs, playgrounds, irrigation and restrooms.
Project funding includes the Mill Pond Dock Improvement (cp1915) in 2019, funded $25,000 to help complete the West
Auburn Lake Park (cp1801) in 2020 and $35,783 for the Lea Hill Mini Soccer Field Turf replacement (cp2122) in 2021
Future Impact on Operating Budget:
Progress Summary:
Page 1121 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 95
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Park Acquisitions/Development
Project No:gpbd04
Project Type:Capacity
Project Manager:Daryl Faber
Description:
Activity:
(Previous 2 Yrs.)2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance 39,183 80,000 - - 119,183
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
REET1 647,050 - - - 647,050
KC Prop 2 - 125,000 125,000 125,000 250,000
686,233 205,000 125,000 125,000 1,016,233
Capital Expenditures:
Design - - - -
Acquisition 686,233 205,000 125,000 125,000 1,016,233
Construction - - - - -
686,233 205,000 125,000 125,000 1,016,233
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
REET1 - - - - -
KC Prop 2 125,000 125,000 125,000 125,000 750,000
125,000 125,000 125,000 125,000 750,000
Capital Expenditures:
Design - - - - -
Acquisition 125,000 125,000 125,000 125,000 750,000
Construction - - - - -
125,000 125,000 125,000 125,000 750,000
Grants / Other Sources:
None
Land and other property acquisitions to occur based on demand and deficiencies including parks, open space, trails, corridors
and recreational facilities.
The City purchased the Auburn Avenue Theater and the Qares property in 2020.
Future Impact on Operating Budget:
Progress Summary:
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Total Funding Sources:
Page 1122 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 96
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Sunset Park Improvements
Project No:
Project Type:Capacity
Project Manager:Daryl Faber
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Fund 321 -Unrestricted Fund Balance - 88,161 - - 88,161
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
Park Impact Fees 89,639 - 350,000 - 439,639
Other -Contributions & Donations - - - - -
89,639 88,161 350,000 - 527,800
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction 89,639 88,161 - - 177,800
89,639 88,161 - - 177,800
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Fund 321 -Unrestricted Fund Balance - - - - -
Grants- Secured (Fed,State,Local)1,500,000 - - - 1,500,000
Bond Proceeds - - - - -
Park Impact Fees 1,500,000 - - - 1,850,000
Other -Contributions & Donations 500,000 - - - 500,000
3,500,000 - - - 3,850,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Grants / Other Sources:
Description:
Phse 2 improvements to include looking at options for new or modified court uses (e.g. pickleball). Phase 3 to include
replacing the grass base/softball fields with new multi-sport synthetic turf fields.
Future Impact on Operating Budget:
Less water use (Bonney Lake Water) for fields would save money for the City.
Progress Summary:
Total Expenditures:
Total Expenditures:
Total Funding Sources:
Forecasted Project Cost:
Total Funding Sources:
Page 1123 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 97
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: West Hill Park Acquisition and Development
Project No:gpbd27
Project Type:Capacity
Project Manager:Jamie Kelly
Description:
Progress Summary:
Undetermined at this time.
Activity:
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget
Municipal Parks Construction Fund - - - -
Local Grant (Unsecured)- - - -
Bond Proceeds - - - -
REET - - - -
Park Impact Fees - - - -
Total Funding Sources:- - - -
Capital Expenditures:
Design - - - -
Construction - - - -
Acquisition - - - -
Total Expenditures:- - - -
Forecasted Project Cost:
2027 2028 2029 2030
Funding Sources:
Municipal Parks Construction Fund - - - -
Local Grant (Unsecured)400,000 500,000 - -
Bond Proceeds - - - -
REET - - - -
Park Impact Fees 350,000 500,000 - -
Total Funding Sources:750,000 1,000,000 - -
Capital Expenditures:
Design - 150,000 - -
Construction - 850,000 - -
Acquisition 750,000 - - -
Total Expenditures:750,000 1,000,000 - -
Grants / Other Sources:
The City has been exploring local and state funding for acquisition and development. Staff to send out form letters to existing
property owners in an effort to gauge interest in selling suitable properties to the City.
Acquire property adjacent to Watershed property on the West Hill, and develop park. Park to be used as access to the trails on
the watershed property. Improvements to include parking, playground, restroom, and kiosks.
Future Impact on Operating Budget:
Capital Facilities Plan
Capital Projects Fund
2025 Year End
Project Total
-
-
-
-
-
-
-
-
-
-
Total
2025-2030
-
900,000
-
-
850,000
1,750,000
150,000
850,000
750,000
1,750,000
The City has been exploring local and state funding for acquisition and development. Staff to send out form letters to existing
Acquire property adjacent to Watershed property on the West Hill, and develop park. Park to be used as access to the trails on
Page 1124 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 98
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Dykstra Footbridge
Project No:cp2214
Project Type:Non-Capacity
Project Manager:Faber
Description:
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund - (10,525) - - (10,525)
ARPA funding - 400,000 40,000 - 440,000
Bond Proceeds - - - - -
REET - - - - -
Other - - - - -
- 389,475 40,000 - 429,475
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - 389,475 - - 389,475
- 389,475 - - 389,475
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - - - - -
ARPA funding - - - - 40,000
Bond Proceeds - - - - -
REET - - - - -
Other - - - - -
- - - - 40,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Grants / Other Sources:
Total Expenditures:
Total Funding Sources:
Total Expenditures:
Forecasted Project Cost:
Total Funding Sources:
Engineering study was completed and results were better then expected. Most fixes have already been completed and
remaining items to be done by a contractor will expend the remaining ARPA monies not moving to the theater project.
Progress Summary:
Minor fixes by mainteance staff completed in 2023; remaining items will be completed in 2024.
Future Impact on Operating Budget:
None
Page 1125 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Progra 99
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Fairway Drainage Improvement
Project No:gpbd19, cp2202, cp2302, cp2401
Project Type:Non-capacity
Project Manager:Daryl Faber
Description:
Activity:
(Previous 2 Yrs.)2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund - - - - -
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
REET 2 51,085 30,916 30,000 30,000 112,001
Other - - - - -
51,085 30,916 30,000 30,000 112,001
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction 51,085 30,916 30,000 30,000 112,001
51,085 30,916 30,000 30,000 112,001
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - - - - -
Grants- Secured (Fed,State,Local)- - - - -
Bond Proceeds - - - - -
REET 2 30,000 30,000 30,000 30,000 180,000
Other - - - - -
30,000 30,000 30,000 30,000 180,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction 30,000 30,000 30,000 30,000 180,000
30,000 30,000 30,000 30,000 180,000
Grants / Other Sources:
Apply top dressing sand to the first five fairways in order to firm up these landing areas so that the holes are playable year round. Sand
will be applied with a three yard topdressing machine. Sand will be applied bi/weekly at a tenth of an inch of sand throughout the fairways.
Fairways will start to show improvements once four inches of sand are applied.
Total Expenditures:
Total Funding Sources:
Total Expenditures:
Forecasted Project Cost:
Total Funding Sources:
Progress Summary:
Future Impact on Operating Budget:
None
Page 1126 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Program 100
MUNICIPAL PARKS CONSTRUCTION FUND (321)Capital Facilities Plan
Six Year Capital Facilities Plan, 2025-2030 Capital Projects Fund
Project Title: Forest Villa Park Improvements (previously Neighborhood Parks Improvement- ARPA)
Project No:cp2223 (previously gpbd31)
Project Type:Non-Capacity
Project Manager:Thaniel Gouk
Description:
Activity:
2025 Year End
Funding Sources:Prior to 2024 2024 Budget 2025 Budget 2026 Budget Project Total
Municipal Parks Construction Fund - - - - -
ARPA funding 28,626 121,374 - - 150,000
Bond Proceeds - - - - -
REET - - - -
Other - - - - -
28,626 121,374 - - 150,000
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction 28,626 121,374 - - 150,000
28,626 121,374 - - 150,000
Total
2027 2028 2029 2030 2025-2030
Funding Sources:
Municipal Parks Construction Fund - - - - -
ARPA funding - - - - -
Bond Proceeds - - - - -
REET - - - - -
Other - - - - -
- - - - -
Capital Expenditures:
Design - - - - -
Right of Way - - - - -
Construction - - - - -
- - - - -
Grants / Other Sources:
As part of the American Rescue Plan Act the Parks, Arts and Recreation Division will be able to make minor improvements in
qualifying neighborhood parks. Numerous parks in our low income census tracts are in need of modernization that will assist in
getting these community members outdoors and experiencing a better quality of life. These funds will assist in adding amenities
such as playgrounds, sport courts, gathering spaces to areas of need.
Progress Summary:
Future Impact on Operating Budget:
None
Total Expenditures:
Total Funding Sources:
Total Expenditures:
Forecasted Project Cost:
Total Funding Sources:
Page 1127 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Program 101 | Capital Improvement Program 101City of Auburn Parks, Recreation, Open Space, & Trails Plan
Park Impact Fee
Analysis
Page 1128 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Program 102
Park Impact Fees (PIFs) are charges imposed on new residential developments to fund the acquisition, improvement, and expansion of public parks and recreational facilities. These fees are collected by local governments from developers or property owners when they construct new homes or residential units. The primary purpose of PIFs is to ensure that as communities grow, there are sufficient parks and recreational spaces to meet the needs of the increasing population.
The calculation of PIFs typically involves various factors, including the size and type of the new residential development, the projected increase in population, and the costs associated with providing additional park services to the new residents. Local governments often use specific formulas or criteria to determine the fee amount. The revenue generated from PIFs is earmarked for specific purposes related to parks and recreation, such as purchasing land for new parks, developing new recreational facilities, upgrading existing parks.
Implemented through local ordinances, PIFs are part of broader parks, recreation, and open space plans that outline the level of service standards for parks and recreational facilities. These standards ensure that the funds are used effectively to meet community needs. The underlying philosophy of PIFs is that
growth should pay for growth, meaning that the financial burden of expanding public infrastructure to accommodate new residents should be borne by those who contribute to the growth, rather than existing residents. Overall, Park Impact Fees are a crucial tool for cities and municipalities to manage urban growth sustainably and ensure that all residents have access to quality parks and recreational facilities.
This document specifically addresses the impact fees related to parks and recreational facilities in Auburn. These fees are applied to all residential developments to ensure that the city’s parks and recreational infrastructure can support the demands of a growing population.
Regulatory Framework for
Impact Fees
Pursuant to state statute (RCW 82.02.050 - 82.02.100), Washington counties and cities, including Auburn, are authorized to collect impact fees to “ensure adequate facilities are available to serve new growth and development.” These fees are designed to fund public facilities that support new developments, ensuring that the infrastructure required by a growing population is adequately financed.
Page 1129 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Program 103
Impact fees must be spent on projects related to the impacts of new development and cannot be used to correct pre-existing deficiencies or to pay for maintenance costs. They also cannot exceed a development’s proportionate share of the total cost for system improvements. The fees must be based on a formula or other method that calculates this fair share, ensuring equity and effectiveness in funding public infrastructure.
Impact fees can be collected for four types of public facilities: public streets and roads, publicly owned parks, open spaces and recreational facilities, school facilities, and fire protection facilities (in areas not served by a fire district), as specified in RCW 82.02.050(2) and (4), and RCW 82.02.090(7). These fees must be used for “system improvements” that serve the broader community rather than “project improvements” specific to individual developments, as outlined in RCW 82.02.050(3)(a) and RCW 82.02.090(6) and (9).
Local governments must establish reasonable service areas and develop impact fee rate categories for various land uses, as mandated by RCW 82.02.060(6). The improvements funded by these fees must benefit new development and be reasonably related to it, ensuring that the new infrastructure meets the needs generated by growth.
In 2011, the Washington Legislature extended the period during which impact fees must be spent from six to ten years. According to RCW 82.02.070(3), if impact fees are not spent within ten years following their collection, they must be refunded. This extension provides local governments with more flexibility in planning and implementing necessary infrastructure projects to support new development.
By incorporating these statutes, Auburn ensures that its impact fees are used effectively to fund essential public facilities, maintaining a high quality of life for its residents while accommodating growth.
Auburn Municipal Code:
Chapter 19.08 of the Auburn Municipal Code establishes the legal framework for assessing parks impact fees, as authorized by RCW 82.02. These fees are imposed on new residential developments to ensure that adequate parks and recreational facilities are available to support growth. The assessment of these fees is based on a specific schedule and is typically due at the time of building permit issuance. The funds collected must be used exclusively for improvements to parks and recreational facilities that serve the new development, and cannot be used for maintenance or to address existing deficiencies. A dedicated account is established
for managing these funds, with stringent reporting and management requirements to ensure transparency. The code also provides for refunds if the impact fees are not spent within ten years, as well as adjustments and credits under certain conditions, such as when developers provide on-site recreational facilities. Additionally, there are provisions for exemptions and an appeals process for disputing fee assessments.
Assessing the Need for
Impact Fees
To establish appropriate impact fee rates in Auburn, several critical factors must be considered. These include determining which public facilities the city is responsible for, identifying the demand for additional parks and recreational spaces, securing the necessary revenue to support these facilities, and understanding the benefits these amenities bring to new developments.
The City of Auburn is responsible for its parks and recreational facilities, and impact fees can only be applied to public facilities, including those managed by other government entities, as outlined in RCW 82.02.090(7). Evaluating the need for new parks involves comparing current service levels with future demands based on population growth, identifying any gaps, and ensuring compliance with statutory requirements. Auburn’s approach includes analyzing per capita investment in existing facilities to determine the need for additional parks and recreational spaces.
Revenue from impact fees is crucial for funding the development and maintenance of these facilities, ensuring that new developments contribute to the infrastructure they require. This process involves evaluating current funding levels and forecasting the additional revenue needed to support Auburn’s growth. New parks and recreational facilities not only enhance the attractiveness of new developments but also improve residents’ quality of life and provide significant economic and social benefits. Therefore, ensuring that new developments contribute to these amenities is essential for sustainable and balanced growth in the city.
Page 1130 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Program 104
Evaluating the Benefit of Impact
Fees in Auburn
Impact fee laws in Auburn ensure that the fees imposed on new developments are justified and beneficial through several key principles and tests. These principles ensure that the fees are fair, equitable, and directly related to the needs generated by new development.
Rational Nexus Test
The rational nexus test requires a clear connection between the need for new public facilities and the development being charged the impact fees. In Auburn, this means that the fees must be used to fund improvements that directly address the impacts of new development. This test ensures that the impact fees are justified and applied appropriately.
Proportionality Test
The proportionality test ensures that the amount of the impact fee is proportional to the development’s impact on public facilities. This means that the fees collected in Auburn should not exceed the cost of the facilities needed to accommodate the new development. The fees must be fair and reflect the actual cost of providing the necessary public services and infrastructure.
Specific Benefit
Auburn’s impact fee laws require that the fees collected provide a specific benefit to the new development paying the fees. This ensures that the improvements funded by the impact fees directly enhance the facilities and services available to the new development, supporting growth in a way that benefits those contributing developments.
Compliance with Statutory
Requirements Impact fees in Auburn must comply with statutory requirements, which include detailed documentation and analysis to support the fees. This includes identifying existing deficiencies, reserve capacity, and new capacity needs. These statutory requirements ensure transparency and accountability in the use of impact fees.
In summary, Auburn’s impact fee laws evaluate the benefit provided by these fees through the rational nexus and proportionality tests, ensuring that the fees are directly related to and proportional to the impact of new development. The laws also mandate that the fees provide a specific benefit to the development and comply with statutory requirements to maintain fairness, transparency, and accountability.
Methodology and Relationship to
Capital Facilities Plan
In the City of Auburn, the calculation of impact fees for parks and recreational facilities is anchored in the per capita value of the city’s capital improvements for these amenities. The purpose is to ensure that new housing and other private and public developments contribute their fair share of the investment necessary to support, often needing to improve, the city’s level of service objectives for its parks and recreational facilities. This investment is typically supported by a combination of general revenue, capital improvement funds, grant funding, and impact fees.
To determine the amount of the impact fee, Auburn multiplies the average number of residents per dwelling unit by the per capita investment needed for new development. This per capita investment reflects the cost of future parks projects identified in the City’s Capital Facilities Plan. By using this approach, Auburn ensures that the infrastructure required to support population growth is adequately financed and fairly shared.
This method is consistent with Auburn’s municipal regulations and complies with RCW 82.02, which mandates that impact fees be equitable, proportional, and dedicated to system improvements that benefit new developments. This ensures transparency and fairness in funding the necessary expansions and enhancements to Auburn’s parks and recreational facilities.
Current Impact Fee Summary
The City of Auburn, WA, has implemented impact fees to finance necessary infrastructure improvements due to new developments, ensuring that the cost of growth is shared equitably among developers. These fees cover transportation, schools, and parks, with a special focus on park impact fees. Park impact fees are authorized by RCW 82.02.090 (7) and are designed to support the acquisition, expansion, and development of parks, open spaces, and recreational facilities. In Auburn, “parks” include both developed recreational facilities and open spaces preserved for their natural and ecological value.
The impact fees are calculated based on the type and intensity of new development, ensuring a proportional distribution of costs. Different land uses, such as residential, commercial, and industrial developments, are assessed varying fees. Residential developments are categorized similarly to the transportation impact fee system for ease of understanding and administration. The City of Auburn ensures proper administration of these fees through regular updates, transparency, and accountability, with funds earmarked for specific park projects. The benefits of park impact fees include equitable cost distribution, enhanced quality of life, and sustainable growth.
Page 1131 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Program 105
Projected Growth and Density per
Dwelling Unit Population Growth:
Between 2024 and 2044, Auburn, WA, is projected to experience significant population growth. The population is expected to increase from approximately 90,096 residents in 2024 to around 114,540 residents by 2044, the projected population growth rate for Auburn between 2024 and 2044 is approximately 27.13%, representing an addition of approximately 24,444 residents over the 20-year period, which will significantly impact housing demand and density. This growth underscores ongoing urban development, rising housing demand, and Auburn’s attractiveness as a residential and economic hub in the region. To sustain the quality of life for both current and future residents, this projected growth necessitates careful planning and substantial investment in infrastructure, including parks and recreational facilities.
Per Unit Occupancy:
The most recent estimates from the Washington State Office of Financial Management indicate the following average number of occupants per dwelling unit for Auburn:
Single-Family Residential: 2.864 persons per unit Multi-Family Residential: 1.907 persons per unit Using these OFM estimates and the City’s existing inventory of single-family and multi-family residential units, we have calculated a weighted average occupancy of 2.559 persons per unit. This average is used for a uniform impact fee calculation, ensuring equitable distribution of costs associated with accommodating the city’s growth.
Using these estimates and the city’s current inventory of single-family and multi-family residential units, the weighted average number of persons per unit is calculated to be approximately 2.545 persons. This figure is instrumental in calculating uniform impact fees and supporting future planning needs as Auburn continues to grow.
Level of Service Standards for Parks,
Recreation, and Open Space
Auburn’s previous Parks, Recreation, and Open Space Plan Update (2015) included a comprehensive demand and needs analysis including specific recreation facility types, that were used to develop proposed Level of Service (LOS) standards established within the same plan. After further review, and as detailed in this plan’s Demand & Needs, it was determined these standards are no longer aligned with Auburn’s current demographics, community needs, and future parks development plans. Consequently, this plan is adopting and revising the following recommended LOS standards:
Parks:
Neighborhood Parks: 1.25 acres per 1,000 population Community Parks: 5 acres per 1,000 population
Trails: 0.25 miles per 1,000 population
The following analysis includes an update to the parks impact fees based on the updated standards. Importantly, as outlined in the Capital Improvement Program section, the City of Auburn has identified the need to exclude football fields and indoor pool facilities from the impact fee cost basis, as there are no immediate plans to develop additional amenities of this type. City staff determined that excluding these facilities more accurately reflects the current and future recreational needs of Auburn’s residents, ensuring that the impact fees are aligned with planned improvements and community priorities.
Projected Costs for Parks and Facilities,
and Total Cost Basis for the Parks
Impact Fees
Based on this detailed analysis to update its parks impact fees, based on revised Level of Service (LOS) standards needed for this parks, recreation, and open space update, the 2002 standards were found to be outdated and not reflective of the city’s current demographics, needs, or future development plans. As a result, the City adopted new standards, including 1.25 acres of neighborhood park per 1,000 residents, 5 acres of community park per 1,000 residents, and 0.25 miles of multi-use trail per 1,000 residents.
The total cost required to meet these standards through 2044, included developing 63.31 acres of neighborhood parks, 116 acres of community parks, and 6.68 miles of multi-use trails, had an estimated total cost of almost $56M.
After adjusting the total cost by accounting for external funding sources, including transfers from the General Fund and sales tax, as well as anticipated grant money. After these adjustments, the net cost basis for the parks impact fees was calculated to be approximately $6.134 million. This cost was then used to determine the per-household impact fee, ensuring that new developments contribute their fair share towards maintaining Auburn’s parks and recreational facilities at the revised LOS standards.
Using the number of parks facilities needed to meet the revised standards for growth over the next six years and the unit cost estimates, the total cost of the growth was calculated. Based on the information provided and the calculations we discussed earlier, the calculated impact fee per household is approximately $4,612.
Page 1132 of 1163
City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Capital Improvement Program 106
This fee was determined by dividing the net cost basis of $6.134 million (after accounting for grants and other funding sources) by the projected population growth, and then calculating the fee on a per-household basis using the average occupancy of 2.545 persons per household.
Comparison Analysis
With an updated park impact fee of $4,612 per household, Auburn is positioned competitively compared to similar-sized communities in the region. This fee closely aligns with those charged by cities like Kent and Federal Way, reflecting a similar commitment to funding park infrastructure. Auburn’s fee is slightly higher than those in Renton, Puyallup, and Lakewood, indicating a modestly greater investment in parks to accommodate future growth. However, it remains significantly lower than the fees in areas like Redmond, where higher development costs drive more substantial impact fees. Overall, Auburn’s impact fee ensures a balanced approach to maintaining and enhancing park services while staying competitive within the region.
Table 6-: PIF Analysis
City
Current
Population
2024
Projected
Population
2044
%
Growth
Single-
family
fee
Multifamily
fee
Renton 108,555 140,000 28.97 $2,915 $1,978
Tukwila 21,798 30,000 37.63 $3,006 $2,618
Woodinville 14,330 20,000 39.57 $3,175 $3,175
Auburn 83,870 120,000 43.08 $3,500 $3,500
University Place 35,500 50,000 40.85 $3,644 $2,660
Puyallup 42,861 65,000 51.65 $3,675 $3,675
Shoreline 61,353 80,000 30.39 $4,692 $3,077
Redmond 80,280 110,000 37.02 $5,124 $3,557
Kirkland 91,194 120,000 31.59 $5,629 $4,278
Lynnwood 40,592 60,000 47.81 $5,899 $4,238
Sammamish 65,116 90,000 38.21 $6,739 $4,362
Issaquah 40,380 70,000 73.35 $9,107 $5,590
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Approvals
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Adoption Process
In order for this Plan to be formally adopted, the plan must be reviewed by several bodies, including the public, ultimately culminating with a resolution, ordinance, or other adoption instrument showing formal approval of the plan and planning process by the governing entity. Only after RCO approves the plan, may the organization may apply for grants for up to six calendar years from the date when the governing body adopted the plan.
With the depth of public and staff involvement made over the execution of this planning process, the following review and approvals have been included:
1. City Council Ordinance
2. RCO Self-Certification Checklist
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Council Resolution
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Planning Eligibility Self-Certification Form
Use this form to certify that the need for any grant projects have been developed through an appropriate planning process. Provide the completed form with the subject plans and adoption documentation to RCO via e-mail or other means of electronic access (i.e. Web link, Box.com, etc.).
Organization Name:
Contact Name:
Adoption Date of Submitted Documents:
Seeking Eligibility for: Recreation Grants Conservation Grants Both
Initial Each
to Certify
Completion Plan Element Certification
Document and
Page Number
Location of Information
1.Goals, objectives: The attached plan supports our project with
broad statements of intent (goals) and measures that describe
when these intents will be attained (objectives). Goals mayinclude a higher level of service.
2.Inventory: The plan includes a description of the service area’sfacilities, lands, programs, and their condition. (This may be done
in a quantitative format or in a qualitative/narrative format.)
3.Public involvement: The planning process gave the public
ample opportunity to be involved in plan development and
adoption.
4a. Demand and need analysis: In the plans:
•An analysis defines priorities, as appropriate, for acquisition,
development, preservation, enhancement, management, etc.,and explains why these actions are needed.
•The process used in developing the analysis assessed
community desires for parks, recreation, open space, and/or
habitat, as appropriate, in a manner appropriate for the service
area (personal observation, informal talks, formal survey(s),workshops, etc.).
4b. Level of Service assessment (optional): An assessment of the
criterion appropriate to your community. Possibly establish a
higher level of service as a plan goal (above).
5.Capital Improvement Program: The plan includes a capitalimprovement/facility program that lists land acquisition,
development, and renovation projects by year of anticipated
implementation; include funding source. The program includes
any capital project submitted to the Recreation and
Conservation Funding Board for funding.
6.Adoption: The plan and process has received formal governing
body approval (that is, city/county department head, district
ranger, regional manager/supervisor, etc., as appropriate). Attachsigned resolution, letter, or other adoption instrument.
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Certification Signature
I certify that this information is true and complete to the best of my knowledge.
Print/Type Name: ______________________________________________________________________________________
Signature (Hand Written or Digital): ___________________________________________________________________
Title: ____________________________________________________________________________________________________
Date: _____________________________________________________________________________________________________________
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Appendices/Attachments
| Appendix 116City of Auburn Parks, Recreation, Open Space, & Trails Plan Page 1143 of 1163
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Washington State Recreation & Conservation Office (RCO) has found that many terms commonly used in recreation planning do not have consistent definitions from one plan to another. RCO suggests, but does not require, the following definitions compiled from various sources, including Washington Administrative Code, Department of Natural Resources, and Washington State Parks & Recreation Commission used in this master parks plan include:
A - Terms & Definitions
Table A1: Terms & Definitions
Term Definition#
Access The public’s ability to physically use land or water.
Active Recreation Predominately human muscle powered recreational activities.
Camping An overnight stay in a tent or other non-permanent structure.
Capital Improvement Program (CIP)A list or description of proposal capital projects.
Capital Project A project that results in redevelopment of an existing property, acquisition of new property, or a new built facility with a budget that excess $10,000.00
Consumptive Recreation that physically consumes resources; examples include berry picking, shellfish harvest, hunting, fishing.
Development A development project is construction or work resulting in new elements, including but not limited to structures, facilities, and/or materials to enhance outdoor recreation resources.
Dispersed Recreation that is scattered or spread across the landscape and not concentrated at a specific site. Examples include trail uses, camping, walking, cycling, and jogging.
Impact (Low, Medium, High)The effect that recreational uses have on resources including but not limited to soils, water, species, habitat, sites, and facilities.
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Table A1: Terms & Definitions
Term Definition#
Improve Expanding an existing site or facility to serve more uses or more types of use.
Level of Service Measure of the current status of a park and recreation system as a whole based on either quantitative or qualitative characteristics.
Maintain To maintain existing areas and facilities through repairs and upkeep for the benefit of outdoor recreationists.
Multiple-use Use by more than one type of recreation on the same facility.
Non-consumptive Resource recreation that depends on, but does not consume, resources; for example, photographing wildlife.
Park
Land or an area set aside for a special purpose, but particularly for leisure or recreation.
• Totlot/Mini-Park/Pocket Park – a small local park or civic space accessible to the general public without the capacity for large outdoor recreation activities like field sports and often associated with playground equipment for toddlers and young children.
• Neighborhood Park – a local-scale park with a service area of a reasonable walking distance, typically ½ mile, but up to 1 mile.
• Community Park – a community-scale park facility has a service area typically of 1-5 miles that includes the city limits of a town or city.
• Regional Park – a larger park facility intended to serve populations and uses from multiple jurisdictions.
• State Park – a park facility owned and managed by the State of Washington.
• Marine Park – a state or regional park facility intended to serve populations spanning multiple jurisdictions with primary access via watercraft .
• Day-use Park – any kind of park facility that does not allow overnight uses such as camping.
• Seasonal Parks – any kind of parks intended for use in specific seasons.
Passive Activities usually conducted in place and requiring minimal physical exertion such as picnicking, watching a sports event, sun bathing, or relaxing.
Qualitative An adjective relating to the quality of something interpreted by its intrinsic non-numerical characteristics other than some quantity or measured value.
Quantitative Relating to, measuring, or measured by the quantity of something obtained using a numerical measurement process.
Recreation Activities of a voluntary and leisure time Nature that aid in promoting entertainment, pleasure, play, relaxation, or instruction.
Renovate (Renovation)The activities intended to improve an existing site or structure in order to increase its useful service life beyond original expectations or functions. This does not include maintenance activities to maintain the facility for its originally expected useful life.
Restoration Bringing a site back to its historic function as part of a natural ecosystem or improving the ecological functionality of a site.
Shared Use Use by more than one type of recreation on the same facility.
Trail
According to the Washington State Trails Plan (RCO, 2013):
“…a path, route, way, right-of-way, or corridor posted, signed, or designated as open for travel or passage by the general public but not normally designated as open for the transportation of commercial goods or services by motorized vehicles.”
A trail is a recreational facility that also can serve as a non-motorized route for transportation.
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There are six basic park and greenspace facility types typically utilized by municipalities:
Pocket Parks / Mini-Parks / Tot Lots
Neighborhood Parks
Community Parks
Natural Areas & Greenspaces
Trails, Bikeways & Paths
Special Facilities
B - Standards & Guidelines
POCKET PARKS / MINI-PARKS /
TOT LOTS Generally, developed neighborhood parks typically include amenities such as pedestrian paths, picnic tables, benches, play equipment, a multi-use open field for youth soccer and baseball, sport courts or multi-purpose paved areas, landscaping and irrigation. Restrooms are not provided due to high construction and maintenance costs. Parking is also not usually provided; however, on-street, ADA accessible parking stall(s) may be included.
Neighborhood park development may proceed in phases.
Pocket parks are very small and serve a limited radius (up to ¼-mile) from the site; they provide passive and play-oriented recreational opportunities. Examples of pocket parks can include a tot lot with play equipment such as a climber, slide or swings; a viewpoint; or waterfront access areas such as at street ends.
A small urban plaza or civic recognition project may also be considered a pocket park. Parking is not often provided at pocket parks, although lighting may be used for security and safety.
LocLOCAL / NEIGHBORHOOD PARKS
Neighborhood parks are generally considered the basic unit of traditional park systems. They are small park areas designed for unstructured play and limited active and passive recreation. They are generally 3-5 acres in size, depending on a variety of factors including neighborhood need, physical location and opportunity, and should meet a minimum size of 2 acre in size when possible.
Neighborhood parks are intended to serve residential areas within short walking distance (up to ½-mile radius) of the park and should be geographically distributed throughout the community. Access is mostly pedestrian, and park sites should be located so that persons living within the service area will not have to cross a major arterial street or other significant natural or man-made barrier, such as ravines and railroad tracks, to get to the site.
Additionally, these parks should be located along road frontages to improve visual access and community awareness of the sites.
COMMUNITY PARKS
Community parks are larger sites developed for organized play, contain a wider array of facilities and, as a result, appeal to a more diverse group of users. Community parks are generally 20 to 50 acres in size, meet a minimum size of 20 acres when possible and serve residents within a 1-mile radius of the site.
In areas without neighborhood parks, community parks can also serve as local neighborhood parks. In general, community park facilities are designed for organized or intensive recreational activities and sports, although passive components such as pathways, picnic areas and natural areas are highly encouraged and complementary to active use facilities.
Since community parks serve a larger area and offer more facilities than neighborhood parks, parking and restroom facilities are provided. Community parks may also incorporate community facilities, such as community centers, senior centers or aquatic facilities.
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NATURAL AREAS & GREENSPACES
NATURAL AREAS
Natural areas are those which are preserved to maintain the natural character of the site and are managed to protect valuable ecological systems, such as riparian corridors and wetlands, and to preserve native habitat and biodiversity. In managing for their ecological value, these natural areas may contain a diversity of native vegetation that provides fish and wildlife habitat and embodies the beauty and character of the local landscape. Low-impact activities, such as walking, nature observation, and fishing are allowed, where appropriate, and horseback riding is also permitted on certain sites.
GREENSPACES
Greenspaces are passive-use open spaces and turf areas without developed amenities or structured functions.
TRAILS & BIKEWAYS
Trails are non-motorized transportation networks separated from roads. Trails can be developed to accommodate multiple uses or shared uses, such as pedestrians, in line skaters, bicyclists, and equestrians. Trail alignments aim to emphasize a strong relationship with the natural environment and may not provide the most direct route from a practical transportation viewpoint.
Bikeways are different than trails in that their principal focus is on safe and efficient non-motorized transportation. Bikeways serve distinctly different user groups than trail users. Typical bikeway user groups would include bicycle commuters, fitness enthusiasts and competitive athletes. Their emphasis is on speed, which can create conflicts with recreation-type trails and their respective user groups.
For shared-use trails, it is important that the alignment and cross sections be designed with flexibility to accommodate higher speeds, passing zones and greater widths. Surfaces will vary with intended use and environmental considerations. Additionally, parking, consistent signage (wayfinding, access, use hierarchy) and interpretive markers or panels should be provided as appropriate.
SPECIAL FACILITIES
Special facilities include single-purpose recreational areas such as skateparks and display gardens, along with community centers, aquatic centers and public plazas in or near the downtown core. Additionally, publicly-accessible sport fields and play areas of public schools are classified as special facilities; while they often serve as proxies to public parks, school sites have restricted daytime access and offer limited recreational use during non-school hours. No standards are proposed concerning special facilities, since facility size is a function of the specific use.
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C - Park Needs & Assessment Survey
Comments
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ADDITIONAL COMMENTS
resources, costs and good staff who maintain the massive areas. Thank you for planning to address continuing future needs.”
“Auburn has one of the best senior activity centers in King County. Keep up the good work.”
“Bring parks to the west hill!!!”
“Did you miss my request for a park on West Hill with a playground???? Please please please. I’ve been asking for 4 years. My kids will be out of the house by the time it happens. You’ve been goldilocksing a park up here since you acquired West Hill 14 years ago. The lake park isn’t for kids, theres no where for them to play. I know it’s expensive but it’s never going to be perfect or the right time, just get us a playground please!!!!!”
“Disability friendly off leash park with safe and secure parking area! Needs to be large enough to throw a ball, not a tiny fenced in area.”
“Do better to rid the drug activity, homelessness n make trails more wheelchair friendly “
“Do whatever needs to be done so people will feel safe spending time at the parks. I know young mothers who would never come without their husbands to certain parks. Also, prioritize the needs and desires of law abiding citizens over those of the homeless.”
“Doing a great job. Would like to see more open spaces. Thank you.“
“Emphasis on sports for elementary age kids. I called recently and was told basketball is not offered. “
“For an indigenous people to have an identity, we must have land on which we can reclaim our ancestral ways. Not “borrowed” day use land by portioned out indigenous owned and indigenous tended land. Auburn has PLENTY of open natural land that can be up for “reclaiming” by indigenous groups of people. Some king of process towards ownership. Open natural space for planting, harvesting, inipi temazcal (sweat ceremony) other relevant ceremonies around our calendar, outdoor kitchens ie stone, mud, brick, yurts, overnight amenities. A communal space for healing and reclaiming the ways of our ancestors.“
“I absolutely love the community center and the activities they provide”
“I am a 72 year old active person and I love to walk, bike and hike, go to the gym for exercise. So, don’t forget that older folks are sometimes a lot more active than younger folks. I have many neighbors that do not encourage their children to go or play outside. We need to get them out there. I think being inside all the time, and rushing from one activity to the next is causing societal stress. The out doors, green space, and activity is perfect for stress reduction and a healthy life.”
“I am happy with the park facilities but do not feel safe at most community areas anymore. I have been robbed, my car window broken out well playing at a park with my family and most recently
I appreciate all the community
events and the close,
friendly collaboration with the
Muckleshoot Tribe.
I absolutely love the community
center and the activities
they provide.
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ADDITIONAL COMMENTS
confronted by a homeless drug addicted man yelling at me to get him cigarettes. I no longer visit a majority of parks in the city as it’s just not safe. “
“I am in my second career as a high school teacher and coach. I became a high school teacher and coach because I saw the need. I care about kids in my community and I want to help them be as successful as possible. They are the literal future. As a teacher I’m able to see behind the scenes at what our most at risk kids need. Please steward our money wisely. I see a crisis on the horizon and right now there is something we can do about it. Thank you! “
“I appreciate all the community events and the close, friendly collaboration with the Muckleshoot Tribe.”
“I appreciate the recreational opportunities Auburn provides. One thing I don’t like is maintaining so much grass and would like to see more of that converted to planting beds. Reducing fertilizing and mowing would be good for our city.“
“I believe Auburn Parks to be the best part of Auburn. Thank you for all that you do.”
“I just wanted to share with you my appreciation for being asked for input on this. Having safe, welcoming spaces is a hallmark of a healthy community.”
“I live in West Hill Auburn, and I feel like we are almost a forgotten area. We are sometimes closer to Federal Way for things, but our address is Auburn, and our school district is Federal Way, so it makes being a part of a community difficult when we are sorta spread out.”
“I love all the free activities you have for children!”
“I love Auburn parks. Lets keep them safe and beautiful!”
“I love our parks and hope they are around for my grandkids to enjoy many years from now”
“I love the parks we have, but they are starting to feel unsafe and dirty. “
“I really appreciate that the parks department put a walkway in our neighborhood park. The park gets a lot more use since we don’t have to get shoes wet on the grassy. Also the increased foot traffic makes the park safer. It would be fantastic if the park department would bring summer programs for kids to our local park. Arts and crafts or a nature education would be fabulous for our neighborhood kids.”
“I really love Auburn and their Parks and Rec department, as a single mother on a tight budget it helps me out so much to have so many free and low-cost activities available for me and my 8 year old. Keep up the good work!”
“I think the biggest concern for all of Auburn residents is the safety issues because of the crime
I live in West Hill Auburn, and I
feel like we are almost a
forgotten area.
As a single mother on a tight
budget it helps me out so much
to have so many free and low-cost
activities available for me and my
8 year old.
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ADDITIONAL COMMENTS
rate associated with the homeless drug problem plaguing our once safe city.”
“I work in Auburn so I like to use your parks and facilities before and after work.”
“I would love more lighting on darker streets, especially this time of year when it’s dark and cold. We’ve lived here for 5 years after over 15 years in Seattle, I was surprised at the slow response to the traffic lights for pedestrians, especially on Auburn Way, I hit the button and wait FOREVER, and often no traffic or people driving like 50MPH because the lights aren’t requiring them to stop. I don’t feel safe standing on the corners with my toddlers/stroller etc. When it’s cold and rainy, the pedestrian WALK light response should be faster. Traffic should stop and pedestrians should be able to cross and not stand and wait. Your traffic control people should talk to the Seattle planners because they are so pedestrian focused. I think I would opt to walk more if it wasn’t clear the automobiles have priority.“
“I’d like to see a park in the downtown core, close to coffee shop. There was benches at train station but have been removed. No homeless but nobody else. I use to see lots of folks visiting.“
“In the last couple of years, there is a new trend to run motorized vehicles on our walking trails, mostly motorbikes. Either people don’t read or ignore the no motorized vehicle signs. Its multiple times a week I’m seeing this, i get the police is busy but its getting pretty bad”
“It would be nice if the City of Auburn worked with the YMCA to provide more services and facilities for senior citizens to keep physically active at a cost that is affordable. Thanks for listening.”
“I’ve lived here in Auburn all my life and have always enjoyed our beautiful parks. Thank you to the Auburn parks employees”
“Keep growing the parks and public spaces. We love the free summer events or low cost including music, movies, art.”
“Keep parks safer. Add better lighting. Deter homeless and drug users. Update equipment. Replace/repair missing/broken equipment. Les Gove was amazing when it opened- its horrible now.”
“Keep prioritizing the needs of the citizens. :) And thanks for asking.“
“Keep up the good work. Thanks for all you do.”
“Lea Hill seems to be the area most ignored. The high school is the only place with nice fields and they are constantly locked.“
“Les Gove and Game Farm get way too crowded during events and parking is impossible. Offering shuttles to events would be great.”
“Lights in a dog park!!”
“Loved your Farmer’s Market!”
“Make our parks safe again, please. We have some great recreation areas but they’re just not safe anymore.“
“Maybe a way to link the parks and such facilities to the walking trail along the rail road tracks/!!”
“More biking classes and ninja classes for kids would be so wonderful. It’s really needed. Look at marymor park in Redmond. They are a perfect
Keep parks safer. Add better
lighting. Deter homeless and drug
users. Update equipment. Replace/
repair missing/broken equipment.
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ADDITIONAL COMMENTS
example. A bike track for riders would be a full family and healthy sport. “
“More safety efforts, more community outreach, more public and community focused events“
“More support for agricultural businesses. More care needed for some of historic mature trees. Both trees and agriculture are part of the city’s culture, so the cultural staff need to be kept in the loop and have input on these issues.”
“My grandchildren and I love and appreciate the parks in Lakeland Hills! Thank you!”
“Our kids need more contact with mentors and good role models. The Scouts are having a hard time finding a permanent place to meet.”
“Overall, we have a great park system in Auburn. Keep up the good efforts to sustain and improve the wonderful parks we have.”
“perhaps list pickleball as an activity”
“Please build a playground a fulner asap”
“Please continue to work on the homeless problem. I know it is a very complex issue. I would like to see a more permanent solution. The camps have been cleared out by the Green River three times now. Within days they all move back. Stolen cars are routinely dumped and stripped there and the garbage just piles up again and again. I am also concerned about the river being polluted by all this as well as human waste. Shootings
are a regular occurrence. I have had to call 911 numerous times while golfing on our City Golf Course because of gun shots during my golf game. One person was shot and killed on the road there. This is just so unsafe!!!“
“Please work to build the park maintenance crew as they are very understaffed from what I have learned this year. Also, it’s VERY difficult for me to report concerns as I see them. I used to tell Mike Miller direct via text / cell but now I have no one to call and I have left numerous messages for the new head of maintenance and parks, with zero returned calls. I am disappointed.”
“Safety, graffiti, equipment repair needs to be done in a more expeditious fashion. Parks and rec and the city police and City Hall need to work more closely together to make our community safer and cleaner”
“Shout out for all the work Auburn already does to provide great parks and recreation. Thanks for making these spaces and activities available to all.”
“Thank you for asking for public opinion! I will feel safer using Auburn parks when the homeless/drug addict situation is under control.”
“Thank you for creating this survey. I think that the main question Auburn should be concerned with is whether we can handle all the incoming people successfully as a city. It seems that the homeless population is growing exponentially, as is the low income population. We need to make sure that there are adequate jobs and services available
Overall, we have a great park
system in Auburn. Keep up the
good efforts to sustain and improve
the wonderful parks we have.
Parks and rec and the city police
and City Hall need to work more
closely together to make our
community safer and cleaner.
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ADDITIONAL COMMENTS
before we add any more folks who need them, if we want to have a safe and successful city.”
“Thank you for having recreational facilities available as well as a way for the community to provide feedback.”
“Thank you for putting out this survey, please consider Lea Hill Area for development and please look at safety. Slow down the vehicles before there is a serious accident. Walking and biking options are not provided”
“The farmers market is the place I most enjoy. and I appreciate how it has grown. To that end I would like to see the market manager get some needed help.”
“The more Green Space available for people of any age, the more we can beautify our city!”
“The summer kids activities at the parks are great: disc golf, parkour, inflatable water slide.”
“The trail along the White river is nice but too flat. Need more trails with some variety.”
“The youth and adult tennis programs are very good. I appreciate the level of coaching.“
“This is a well-designed and thoughtful survey! Before I retired I developed surveys for state government and school districts, so I appreciate the care that went into this. I especially liked the use of the map to identify where in Auburn we live. Please have more opportunities for local artists. Right now, unless the Auburn Arts Commission already knows you, there is
slim chance of having your artwork posted or displayed. I know this is beyond the scope of this survey, but Renton and Burien, for example, are much friendlier to their community artists. Unfortunately, Auburn Arts Commission seems a bit clique-ish to me. There could be better use of the REC, for example, to display artwork. The Senior Center displays art but usually not from the people who take art classes there or have taken them there. Too much competition to get your artwork shown!!”
“We appreciate all of the programming and fun activities that you provide year round - thank you!”
“We appreciate seeing how Auburn takes care of itself and wants to be a place for community.”
“We love Auburn parks and nice maintenance all the time. Sometimes I see homeless people at parking lots or next to green river. We wish we could do something for them, we hope we can kind a share each other those parks or trails nicely.”
“We love Auburn. I love that there are a lot of community events and activities and the parks are great. Would love to see even more additions and/or improvements to make them even better!”
“We need to find ways to acknowledge and welcome the full diversity of our neighbors. The unsheltered neighbor is still my neighbor! As I would not seek to remove my trailer house living neighbor, nor apartment living, nor too fancy
The more green space available
for people of any age, the
more we can beautify our city!
I love that there are a lot of
community events and
the parks are great.
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home for my taste neighbor – nor do I seek to remove these neighbors. How to help us be better neighbors to one another is a real question! What would help them to be better neighbors to me? Restrooms, showers, places to stay warm, cook food, share healthy interactions, places for dumping
garbage, transportation opportunities .... hmmmm... hope we are finding a way to positively seek all these neighbors input on these vital questions! Thank you”
“Working parents need options that are available during non work hours. And toddlers need places to play especially with the COVID baby boom”
“Would like to see the farmers market back on main street”
“Would like to use the parks/facilities again without fearing for my safety or theft.”
“Would love an indoor playground near the Lea Hill area”
Working parents need options
that are available during
non-work hours.
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City of Auburn Parks, Recreation, Open Space & Trails Plan Update | Appendix 128Key Takeaways | 16Auburn PROS Plan Community Survey #1 – Results and Summary
KEY TAKEAWAYS
The project team will use the input collected through the community survey to inform and drive the PROS Plan update. Key takeaways from the survey data include:
Survey respondents’ most-used recreational facilities include paved walking/biking trails (used by 75% of respondents), large community parks (51%), small community parks (47%), small neighborhood parks (47%), natural areas/nature parks (45%), and playgrounds (42%).
Survey respondents’ least-used recreational facilities include skateboarding areas (used by 4% of respondents), outdoor fitness equipment (6%), football/lacrosse/hockey fields (7%), and youth softball fields (7%).
63% of survey participants indicated they travel outside of Auburn to access the recreational amenities/facilities they use most frequently. These facilities include other (nearby) city parks (29%), walking/hiking trails (17%), water access (8%), and indoor community centers (6%). These responses suggest there could be a need for more of these facility types in the City of Auburn, or a need to improve those that already exist within the city.
Barriers to use indicate existing issues that need to be addressed by the City in order to improve Auburn parks users’ experience. The largest barriers to use of the City’s available recreation facilities or programs, as reported by survey respondents, are security/safety concerns (57% of respondents), poor maintenance/cleanliness (31%), and overcrowded/booked facilities (20%).
According to survey respondents, the City of Auburn’s biggest parks and recreation needs include:
• More non-motorized urban trails/sidewalks (92.5% of respondents)
• Undeveloped natural areas/open space (86.4%)
• Community centers/indoor facilities (84.5%)
• Splash/spray parks (80.2%)
• More youth programs/camps (77.9%)
• Off-leash dog parks (69.9%)
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A U B U R N
V A L U E S
S E R V I C E
E N V I R O N M E N T
E C O N O M Y
C H A R A C T E R
S U S T A I N A B I L I T Y
W E L L N E S S
C E L E B R A T I O NPARKS, ARTS & RECREATION2024 PARKS, RECREATION, AND OPEN SPACE PLANTHANIEL GOUK, PARK PLANNING & DEVELOPMENT MANAGERPLANNING COMMISSION SPECIAL MEETINGSEPTEMBER 17, 2024Parks DepartmentParks Arts & Events RecreationCemetery Golf Course Senior Center MuseumPage 1156 of 1163
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATION2024 PARKS, RECREATION, AND OPEN SPACE PLAN
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATIONWhat is the PROS Plan?
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATION
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATION
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATION
SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATIONNEXT STEPSSERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATIONDecember 2024• Resolutionfor
AdoptionNov2024• Draft Plan Discussion with
CouncilOct –Nov2024• RCO ReviewSeptember2024• Planning Commission
Meeting - Tonight • Public Hearing and Deliberation – Tonight7
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SERVICE ENVIRONMENT ECONOMY CHARACTER SUSTAINABILITY WELLNESS CELEBRATIONAny Questions?2024 PROS PLAN UPDATE8Page 1163 of 1163