HomeMy WebLinkAbout10-26-2015 City Council Study Session AgendaA rr r
O
WASH I NGIUN
CALL TO ORDER
A. Roll Call
City Council Study Session
October 26, 2015 - 4:30 PM
Auburn City Hall
AGENDA
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M eeti ng vi deos are not avai I abl e unti 172
hours after the meeti ng has concl uded.
II. ANNOUNCEMENTS, REPORTS, AND PRESENTATIONS
III. AGENDA ITEMS FOR COUNCIL DISCUSSION
A. Comprehensive Sewer Plan (10 Minute Presentation /10 Minute Q &A)*
(Snyder)
B. Comprehensive Water Plan (20 Minute Presentation /25 Minute Q &A)*
(Snyder)
C. Boeing Auburn Facility Groundwater Contamination Update (20 Minute
Presentation /10 Minute Q &A)* (Snyder)
Representatives from the Washington State Department of Ecology will provide
an update to City Council on the status and findings to date of the Boeing
Auburn facility remedial investigation for groundwater contamination.
D. Angie O'Neill and Brittany Miller, students of the Masters of Social Work
Program, University of Washington to brief the City Council on their advocacy
project (15 Minute Presentation)
E. GIS Day Presentation (15 Minute Presentation /5 Minute Q &A) (Haugan)
F. Water Supply Strategies (20 Minute Presentation /15 Minute Q &A)*
(Snyder)
IV. OTHER DISCUSSION ITEMS
V. ADJOURNMENT
Agendas and minutes are available to the public at the City Clerk's Office, on the City
website (htto11www.auburnwa.gov), and via e -mail. Complete agenda packets are
available for review at the City Clerk's Office.
*Denotes attachments included in the agenda packet.
Page 1 of 51
c m OF
AUBURN AGENDA BILL APPROVAL FORM
WASHINGTON
Agenda Subject: Date:
Comprehensive Sewer Plan (10 Minute Presentation /10 October 19, 2015
Minute Q &A)
Department: Attachments: Budget Impact:
CD & P W 2015 Draft Comprehensive Semler Plan Memo $0
Pomerpoint Presentation
Administrative Recommendation:
For discussion only
Background Summary:
The City has updated the Comprehensive Sewer Plan (Plan) in coordination with the
update of the City's overall Comprehensive Plan. Its purpose is to guide the City with
respect to future activities and improvements for the Sanitary Sewer Utility. The final
plan will consist of one binder; containing the Executive Summary, Chapters 1 -9,
appendices, and a system map. Council reviewed the main body of the plan on March
237 2015. The Planning Commission reviewed the plan on April 7, 2015, and then
conducted a public hearing on April 21. The Planning Commission recommended
approval of the Plan by the City Council.
A summary of the projects completed during the last Comprehensive Sewer Plan
period, as well as an overview of future capital projects and other efforts will be
presented during the study session meeting.
Agency Review:
Following the recommendation from the Planning Commission, the draft plan was sent
to other agencies with a potential interest in its content. Overall, comments from
reviewing agencies were minor. The Department of Ecology (DOE) did, however,
request that the City modify its policy concerning private pump systems. Their goal is
that the City be prepared to repair or take other action to prevent overflow due to the
failure of such a system. To meet this requirement, staff is proposing the following
changes to Chapter 3:
Policy 12 will be modified to read (additions are underlined):
DI.A AUBURN * MORE THAN YOU IMAGINED Page 2 of 51
Non - gravity services (e.g., grinder pumps and low- pressure force mains) are
prohibited except in extenuating circumstances when service by gravity is infeasible.
The cost of installation, operation, and maintenance of a low- pressure system shall be
borne by the property owner, community association, developer, etc. The City will not
install, own, or maintain (outside of emergencies) any part of a private non - gravity
system. The property owner shall select the grinder pump system from a list of City-
approved pump manufacturers and models. Prior to approval to install a non - gravity
system, the property owner shall grant site access to the City for emergency repairs in
circumstances where a aromat repair is necessary to reduce the risk of overflow. (See
related Policy #20)
Additionally, a new policy will be added in the Protection and Improvement of the
Environment and Public Health section:
Policy 20: To protect public health and the environment, the City will require a property
owner to promptly repair any grinder pump 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 grinder pump system at the applicant's expense.
The memo included with this agenda item lists the changes to the Plan by page
number from the previous version reviewed by the Council. Staff will prepare and
distribute a final hard copy of the Plan, including all chapters, the system map, and all
appendices prior to adoption with the overall City Comprehensive Plan. The most up-
to -date version of the draft Plan can be found at the following links:
Main Document: htta: / /webI ink. auburnwa.aov /External /docview.asax?
dbid =0 &openfile= true &id = 269324
Appendices: http: / /webIink.auburnwa.gov /External /docview.aspx?
dbid =0 &openfile= true &id = 269327
Reviewed by Council Committees:
Councilmember: Staff: Snyder
Meeting Date: October 26, 2015 Item Number: DI.A
DI.A AUBURN * MORE THAN YOU IMAGINED Page 3 of 51
CITY OF
UBURN
WASHINGTON
To: City Council Members
Nancy Backus, Mayor
From: Bob Elwell, Sewer Utility Engineer
Cc: Kevin Snyder, Director of Community Development and Public Works
Ingrid Gaub, Assistant Director of Engineering /City Engineer
Randy Bailey, Assistant Director of Public Works Operations
Lisa Tobin, Utilities Engineering Manager
Date: October 19, 2015
Re: 2015 Draft Comprehensive Sewer Plan Update
Memorandum
Engineering Division
Since the Council last reviewed the March 2015 Draft Comprehensive Sewer Plan, it has been reviewed
by the Planning Commission, the King County Utilities Technical Review Committee (UTRC), the
Washington State Department of Ecology (DOE), other government agencies, and adjacent sewer
providers.
Based on those review comments and questions, this plan has been updated. Since most of the changes
were minor, you are not being provided with a new hard copy of the updated version for this review.
Below, we have summarized significant changes to the plan since that time, and are providing a link to an
electronic version of the updated (October, 2015) plan.
Location
Description
Reason
ES -1,
Added statement equating this Comprehensive Sewer
DOE review comment
1 -1
Plan with the General Sewer Plan described in WAC
173- 250 -050.
2 -1
Added description of number of residential customer
That data is used to address a
equivalents to Section 2.3
DOE comment for Chapter 8.
Figures 2 -2,
Noted an area of Pacific served by Auburn (A Street SE,
City staff review
4 -1, 4 -2, 5 -5
just north of White River).
Chapter 3
Removed references to specific City Comprehensive
City staff review
Plan Policies, as those are being revised /relocated
3 -3
Modified Policy #12, added policy 20 (and renumbered
DOE review comment.
following items) -The text of these changes is shown on
the agenda bill
Figure 4 -2
Added some recently constructed Lakehaven Utility
Lakehaven Utility District
District infrastructure
review comment
4 -13
Updated list of industrial waste discharge permits and
UTRC review comment
added a reference to how the most current list can be
found.
4 -14
Added statement regarding upcoming adoption of
DOE review comment
reclaimed water rules
5 -11
Added table showing inflow /infiltration rates for various
UTRC review comment
basins within Auburn
Figure 5 -5
Revised the legend for clarity
Lakehaven Utility District
review comment
Table 8 -8
Added data showing projected operating expenses and
DOE review comment
debt services per RCE
DLA - Page 4 of 51
Ka-M
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2009 Sanitary Sewer Plan Accomplishments
6 Projects
1. SCADA (Telemetry) Upgrades
2. Lea Hill Pump Station
Decommissioning
3. Ellingson PS Replacement
4. Dogwood PS Replacement
5. Les Gove Area Improvements
6. Emergency Power Generators
completed
completed
completed
completed
completed
under construction - almost complete
3 Programs
Sewer Repair & Replacement /System Improvements
Arterial Preservation Utility Improvements
Save Our Streets Utility Improvements
DLA Page 6 of 51
Significant Changes from 2009 to 2015
Updated hydraulic model calibrated to King
Decennial Flow Monitoring (2 wet seasons)
Greater emphasis on Asset Management
Increased monitoring
DLA Page 7 of 51
County
2015 Sewer Plan
2016 -2021 Capital Improvement Plan
7 Projects Proposed
3 Programs
DLA Page 8 of 51
Pump Station
Condition
Assessment
• Assess all 15 utility owned
pump stations
• Inspection of hydraulic/
mechanical, electrical,
control and safety systems
• Document condition/
remaining useful life of
components
• Used to clarify scope of the
pump station
replacement/improvement
project
2F2ke T
MTH5T
may. a
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15TH ST S
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- GWArpHa Yta 5 F
DLA Page 9 of 51
s'' ,
Pump Station
Replacement/
Improvements
• Anticipated to replace or
improve 3 stations
T
j 22nd Street PS
8t" Street PS
UJJ
d ,N���bHa Ro s F
• 8t" Street
• Valley Meadows
• 22nd Street
• Exact scope and sequence
of work to be determined
following condition
assessment project
Y
Valley
t- W Meadows
15TH ST S
ter. C'k RC' 5
PS
DLA Page 10 of 51
rr &;
Siphon Assessment
a
14
- Green River Siphon
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Railroad - r
Siphon � � �
— � s 5 ;fir
j IW+�L . j
�� '" � � . �th�treet Bridge Siphon
Ao
DI.A Page 11 of 51
Infiltration /Inflow (1/1)
Study
• Flow monitoring of smaller
basins
• Correlation of flow rates to
rainfall data
• Isolate areas of high 1/1
me
■
7,
Page 12 of 51
Ongoing Programs
• Asset Management
• Data Collection /Assembly
• Condition Assessment
Establish Asset Criticality
• Discharge Quality Control
• Fats, Oils, and Grease (FOG)
program
• Industrial waste
• Public Education
■
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DLA Page 13 of 51
1
Financial Considerations
Adopted annual City rate increase � 2.5% 2015-
2017
Projected annual City rate increase � 3.6%
(average) 2018 -2021
Future Staffing Needs
Staffing
2 Full -Time Equivalent (FTE) employees by 2020
Support Asset Management and Level -of- Service Goals
DLA Page 14 of 51
Plan Review
Planning Commission
Adjacent Providers
City made some minor mapping clarifications related to legend
King County Utility Technical Review Committee
City provided clarification of infiltration /inflow quantities
Department of Ecology
City to address ownership /responsibility for private pumps 4
Revised policy language
DLA Page 15 of 51
Private Pressure System Policy
Previously Proposed
Owner is responsible for all
Revised Policies
Policy
maintenance and repair of the system.
Owner is still ultimately responsible
Owner must choose from list of approved systems
City will take action, if necessary, to address an overflow
DLA Page 16 of 51
Questions?
DLA Page 17 of 51
c m OF
AUBURN
WASHINGTON
AGENDA BILL APPROVAL FORM
Agenda Subject:
Comprehensive Water Plan (20 Minute Presentation /25
Minute Q &A)
Department:
CD & PW
Attachments:
Date:
October 19, 2015
Budget Impact:
2015 Draft Comprehensive Water Plan Memo $0
PowerPoint Presentation
Administrative Recommendation:
For discussion only.
Background Summary:
The City has completed the update to the Comprehensive Water Plan (Plan) in
coordination with the update to the City's overall Comprehensive Plan. The preliminary
draft was reviewed with Council during three study sessions between November 2014
and February 2015, and by the Planning Commission in March and April of 2015.
Summary of the Plan
The City's Retail Water Service Area serves over 56,000 people in both South King
County and Pierce County. The City's water facilities consist of ten wells, two springs,
two Tacoma wholesale water supply interties, eight reservoirs, eight pump stations,
two corrosion control treatment facilities, and nearly 250 miles of pipeline. The City
currently provides wholesale water supply to the City of Algona and to King County
Water District #111. The City of Bonney Lake, Lakehaven Utility District, and King
County Water District #111 (WD #111) also provide water service within Auburn's city
limits where such service predated Auburn's annexation of those areas.
City policies are established to provide a framework for the design, operation, and
reliability of the City's water utility. Two key policy statements pertaining to
redundancy provide guidance for development of the capital improvement program:
The City's goal is to have sufficient system -wide supply facilities to meet the maximum daily
demand (MDD) of the entire system with the largest active water supply source out of service.
The City's goal is to have sufficient capacity to allow full service with any single pump out of
service.
DI.B AUBURN * MORE THAN YOU IMAGINED Page 18 of 51
The City's water supply facilities must be augmented before 2035 to meet the
maximum day demand and redundancy criteria. The City has identified options for
increasing Auburn's supply facilities and for utilizing additional Tacoma water. These
options are presented in the Capital Improvement Plan (CIP). The CIP also identifies
system improvements that are needed to meet customer demands and levels of
service through the 20 -year planning period in the areas of supply, storage, pumping,
distribution system, and general utility projects. Significant projects will be highlighted
during the Study Session. No changes in the current adopted rate structure through
2017 is proposed. Rate increases are anticipated beginning in 2018.
Plan Review
The Planning Commission's recommendation for City Council approval of the
Plan was conditional on "showing the cost of the [capital improvements] program
without using wholesale water from Tacoma Public Utilities purchase ". This purchase
is referring to the reserve water supply block offered by Tacoma Public Utilities that is
in addition to the amount the City has already purchased. The Council has until June
30, 2017 to make the final decision on whether or not to purchase this additional
water; therefore, the Plan was developed with this option included until a decision by
the City is made.
The draft Plan was submitted to the Washington Department of Health (DOH), King
County, Pierce County, and adjacent purveyors for their review and comment. Minor
comments were received from DOH and both counties. No comments were received
from adjacent purveyors.
The memo included with this agenda item lists the changes to the Plan by page
number from the previous version reviewed by the Council. Staff will prepare and
distribute a final hard copy of the Plan, including all chapters and appendices prior to
adoption with the overall City Comprehensive Plan. An electronic version of the
updated Comprehensive Water Plan can be found on the City's website at:
Main Document: http: / /webIink.auburnwa.gov /External /docview.aspx?
dbid =0 &openfile= true &id = 269363
Appendices Part 1 (A - I): http: / /weblink.auburnwa.gov /External /docview.aspx?
dbid =0 &openfile= true &id = 269364
Appendices Part 2 (J - U):
http: / /www.auburnwa.gov /Assets /PW /AuburnWA /Docs /comp water plan part 2.pdf
Plan Approval
DI.B AUBURN * MORE THAN YOU IMAGINED Page 19 of 51
DOH has established December 31, 2015 as the deadline for approval of Auburn's
Comprehensive Water Plan. To meet this deadline staff intends to bring the Plan
forward for approval by the City Council through a resolution on November 2, 2015.
This will allow the appropriate time for the necessary King County and DOH approvals
to be completed by the deadline. The Plan will also be included in the Ordinance for
the adoption of the overall Comprehensive Plan later this year.
Reviewed by Council Committees:
Councilmember: Staff: Snyder
Meeting Date: October 26, 2015 Item Number: DI.B
DI.B AUBURN * MORE THAN YOU IMAGINED Page 20 of 51
CITY Of -J
)*g 61 N
WASHINGTON
To: City Council Members
Nancy Backus, Mayor
From: Susan Fenhaus, Water Utility Engineer
Cc: Kevin Snyder, Director of Community Development and Public Works
Ingrid Gaub, Assistant Director of Engineering /City Engineer
Randy Bailey, Assistant Director of Public Works Operations
Lisa Tobin, Utilities Engineering Manager
Date: October 19, 2015
Re: 2015 Draft Comprehensive Water Plan Update
Memorandum
Engineering Division
Since the Council last reviewed the February 2015 Draft Comprehensive Water Plan, it has been
reviewed by the Planning Commission, the King County Utilities Technical Review Committee (UTRC),
the Washington State Department of Health (DOH), other government agencies, and adjacent water
providers.
Based on those review comments and questions, this plan has been updated. Since most of the changes
were minor, you are not being provided with a new hard copy of the updated version for this review.
Below, we have summarized significant changes to the plan since that time, and are providing a link to an
electronic version of the updated (October, 2015) plan.
Location
Description
Reason
Pages 1 -3 and
Section 1.7 was updated to indicate no adjacent
DOH review comment
1 -4
purveyor comments were received.
Pages 2 -9 and
Figure 2.2 was updated to include wholesale sales
DOH review comment
2 -10
and descriptive text was added to Section 2.4.
Pages 2 -21
Section 2.9 was updated to add applicable water
UTRC review comment
through 2 -23
resource plans.
Page 3 -8
Policy in Table 3.3, Section 3.3.4 was revised to
UTRC review comment
clarify development within the Retail Water Service
Area.
Pages 7 -5 and
Section 7.2 was updated to reference the E. coli
DOH review comment
7 -4
Response Plan.
Page 9 -18
Section 9.4.4 was updated to reference King County
UTRC review comment
code.
Pages 10 -1
Section 10.1 was updated to better reflect how the
DOH review comment
and 10 -2
City is implementing the asset management program.
Pages 12 -27
Section 12.12 was updated to include the
DOH review comment
and 12 -28
Construction Completion Reports.
Appendix A
State Environmental Policy Act (SEPA) and
DOH requirement
Determination of Non - significance (DNS) were added.
Appendix B
Agency comment letters were added.
DOH review comment
Appendix C
Government Consistency Checklists were added.
DOH requirement
Appendix L
Coliform Monitoring Plan 2015 was added
DOH review comment
Appendix T
Cross Connection Control Program was added.
DOH requirement
Appendix U
2014 Water Shortage Contingency Plan was added.
DOH requirement
DI.B - Page 21 of 51
Comprehensive Water Plan
October 26, 2015
City Council Study Session
DI.B Page 22 of 51
2009 Water Plan Accomplishments —
Significant projects
New Lakeland Hills
Reservoir 6
.-
2009 Water Plan Accomplishments —
Significant projects
New Lakeland Hills and Academy East Booster
Pump Stations
.-
2009 Water Plan Accomplishments —
Significant projects
SCADA System Upgrades
Service Areas:
Lakeland Hills
Academy
>- Valley
660 Closed Zone
>- Lea Hill
Intertie to KCWD#11
an C.3 gton WD
WATER �s Y 6 r:M
Intertie PS
Res 4 00,) no� no n R.M
69.1
FT
524 Zone
I Res 8
v 67.1
0.0 FT
Bonney Lake Intertie V
Lake Land Hills PS - -- - - --
1'2 .0 0 l4 e .v
1
90
I" 631 Zone
,r e J
i
ell 5A
nc�a c+a t�►a 117.3
eV tiiey FT
Lake Haven I s
Intertie 464 Zone 425 Zone d33 Zone 456 Zone Academy
363 Zone Pump Station
B Street NW 372 Zone
334 Zone
Tacoma Intertie r
,ti x-� Res 1 r e e
•� Lea Hill PS i L*� .0 22.1
�! �! FrJ
.v
Q23.6
Green River PS �� 288 Zone West Hill Terrace View PS Springs "T,,er Tower 1
Howard Road
CCTF
Coal Creek
We Fel q Springs
0.0
71.5
V
Intertie FT
To Kent FT 4 F
r�
n
DI.B I Page 25 of 51
Zone
474 Zone
II 5
F5
Braunwood
a
5 112
0.0
Braunwood
Well
14.6
FT
Discharge PSI
Intertie to Pacific
interne to Algona
A.-O
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CU • a).
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2009 Water Plan Accomplishments —
Significant projects
Lakeland Hills
Reservoir 5
Improvements
.-
2009 Water Plan Accomplishments —
Significant projects
Well 1
,y
b
Improvements
J1 A 4
y
M
Changes to the Plan from 2009 to 2015
Policies focus on business practices
Completion of Tacoma water purchase and interties
provides additional supply and redundancy to
system
New regulatory requirements will increase our
monitoring
Asset management utilized to incorporate repair &
rehabilitation projects into Capital Improvements
Plan
DLB Page 29 of 51
Existing Water Supply Sources
Tacoma
Intertie
- West Hill
Springs
I
Algona
Well
.-
i
FUlmer
Wellfield (2/6 &7)
N
Not to
Well 1, `_{ scale
Well-4
Wells — - T J
L3A/313 i
Coal Creek - -
Springs
Upland Wellfield:
(5, 5A, 513) ± ':
Auburn Well
Auburn
Spring
AL
Tacoma
Intertie
51
Fulmer Wellfield —Wells 2, 6, and 7
Study found corrosion and iron and manganese
clogging
Solution - Continuous operation
Well 6 in 2016
Well 2 in 2017
DI.B Page 31 of 51
Proposed Significant Projects
Coal Creek Springs
Collector
Improvements
.-
Proposed Significant Projects
West Hill Springs
Improvements
Green River Pump Station
Back -up Power
Academy 1 Pump Station
Improvements
.-
12
Proposed Significant Projects
Coal Creek Springs
24" Transmission Main
DI.B
Coal Creek Springs Transmission Main
Page 34 of 51
Significant Projects in Progress
Advanced Metering Infrastructure (AMI)
t
a
1
1
Financial Considerations
No rate changes proposed beyond those already
adopted by Council through 2017
No additional staff need identified before 2020
DI.B Page 36 of 51
Review Comments
No significant comments from regulatory agencies.
No comments from peer agencies
April 4, 2015 Planning Commission review and
recommendation
DI.B Page 37 of 51
Next Steps
11/2/15
Council Adopts
Plan by Resolution
Mid -Dec 2015
King County
Approval
pts
10/26/15 12/31/15 Comprehensive
Study Session DOH Approval Plan by Ordinance
including
Comprehensive
oi.e PayA9Syf PlIans
c m OF
AUBURN
WASH I NG1K)N
AGENDA BILL APPROVAL FORM
Agenda Subject: Date:
Boeing Auburn Facility Groundwater Contamination Update October 21, 2015
(20 Minute Presentation /10 Minute Q &A)
Department: Attachments: Budget Impact:
Community Development & DewrtmentofEcdopy backup materials $0
Public Works
Administrative Recommendation:
Background Summary:
At the regular City Council study session on October 26, 2015, representatives from
the Washington State Department of Ecology will provide an update to the City
Council regarding the remedial investigation of groundwater contamination related to
historic releases of an industrial degreaser called Trichloroethene (TCE) at the Boeing
Auburn facility. The presentation will be given by the Department of Ecology's Boeing
Auburn site remedial investigation Co- Managers Neal Hines, P.E., Ph.D., and Robin
Harrover, LHG.
Please find attached a summary document prepared by the Department of Ecology
that provides background information about the remedial investigation and future
clean -up efforts.
Reviewed by Council Committees:
Councilmember: Staff: Snyder
Meeting Date: October 26, 2015 Item Number: DI.0
DI.0 AUBURN * MORE THAN YOU IMAGINED Page 39 of 51
1�1F"r
City of Federal Way
Unincorporated
King County
167
Intermediate Zone
TCE Contour
(40 -60 ft)
T
7
City of Auburn
The site includes areas where the groundwater investigation has occurred.
Project Background
In parts of Auburn and Algona, groundwater — the
water that flows under the ground through the soil — is
contaminated with a degreaser called trichloroethene
(TCE) and its breakdown products. It is believed that
the chemicals originated from the Boeing Auburn
facility. The contaminated groundwater (called a
plume) flows north and northwest away from the
Boeing property into portions of southwest Auburn
and northeast Algona. To date, the chemicals found
are at low levels that are not expected to pose a risk
to human health and the environment. If chemicals
are found to be an immediate risk, Ecology will direct
Boeing to implement interim actions to reduce risk.
The Department of Ecology (Ecology) is overseeing
the Boeing Company's investigation of the
contamination and will select and review a plan for
cleanup.
The Remedial Investigation
The contaminated groundwater (called a plume) flows
north and northwest away from the Boeing property
into portions of southwest Auburn and northeast
Algona. A Remedial Investigation is necessary to
understand the source and extent of the contamination
at the site. The map to the left shows the shallow and
intermediate groundwater contamination.
Chemicals could enter the body three ways:
• Breathing
• Touching
• Swallowing
This is referred to as exposure. To date, the
environmental samples collected have demonstrated
that human exposure to the chemicals released is
very low.*
What is TCE?
• An industrial degreaser and volatile organic
compound (VOC), also found in common
household products like paints, glues, spot
removers and pepper spray.
• Able to break down into other chemicals, such as
vinyl chloride (VC) and less toxic by- products.
DLC Page MYOP �
The Cleanup Process
Boeing's cleanup must follow the Washington State Model Toxics Control Act (MTCA) cleanup regulations. Currently, the project is
in the Remedial Investigation phase.
pr
Opportunities for public comment
A Remedial Investigation defines
the nature, extent, and magnitude of
pollution at a site in order to identify
the best method for cleanup.
The Feasibility Study takes the
information from the Remedial
Investigation to identify and evaluate
cleanup alternatives. Then an optimal
alternative will be selected and
incorporated into the Cleanup Action Plan.
The Cleanup Action Plan specifies
cleanup standards, methods, and
schedule, describes the steps to be
taken, and includes any additional
environmental monitoring required
during and after the cleanup.
Implementation of the
Cleanup Action Plan includes
design, construction,
operations and monitoring.
DI.0 Page 41 of 51
What is being investigated?
Groundwater
An extensive network of wells has been installed throughout
the site to monitor the locations and concentrations of
contaminants over time. The Department of Health monitors
the drinking supplies regularly, which are located a safe
distance away from the contamination.
Surface Water
Water samples are collected from ditches and yards to
determine if the chemicals are present.
Air Quality
Indoor air and the air above surface water is tested to
determine whether chemicals pass from the groundwater to
the air as vapor*
Drilling for groundwater samples in northeast Algona.
How contaminants can move through groundwater, surface water and air.
DI.0 Page 42 of 51
Anticipated Schedule
01111, 1 1 1 1► ►
Remedial ' Feasibility' Cleanup ' Cleanup Monitoring
Investigation Study Action Plan Implemented
Identify boundaries Identify solutions Develop a Implement the Monitor and
of the plume and for cleanup of cleanup action cleanup plan evaluate cleanup
potential impacts impacted areas plan for the site for effectiveness
Opportunities for public comment Ecology encourages feedback from the community. Public comment periods are held at
key points throughout the cleanup process.
For more information
Call our hotline: (253) 219 -7645
Email the project: BoeingAuburnSite @ecy.wa.gov
Visit the website: Bit.ly /EcyBoeingAuburn
*To learn more about the Washington
Department of Health consultations and results
of the Remedial Investigation to date, visit the
Document Library on our website!
https://fortress.wa.gov/ecy/gsp/
Cleanup SiteDocuments. aspx ?csid =5049
To requestADA accommodation including materials in a format for the visually impaired, call Ecology at 425- 649 -7000. Persons with
impaired hearing may call Washington Relay Service at 711. Persons with speech disability may call TTY at 877 - 833 -6341.
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c m OF
AUBURN AGENDA BILL APPROVAL FORM
WASHINGTON
Agenda Subject: Date:
Water Supply Strategies (20 Minute Presentation /15 Minute October 19, 2015
Q &A)
Department: Attachments: Budget Impact:
CD & PW Water Supply StrategiesPowerpoint $0
Presentation
Administrative Recommendation:
For discussion only
Background Summary:
The City of Auburn 2015 Comprehensive Water Plan (Water Plan) identifies options
for meeting future supply demands and for providing redundant supplies when existing
supplies are out of service for maintenance and rehabilitation. These options fall into
two basic categories:
- Investing in Auburn -owned supplies
- Purchasing additional supply from Tacoma Public Utilities (Tacoma)
The Water Plan includes both options to give the City Council the flexibility to evaluate
both options before deciding on the best course of action to meet Auburn's
needs. These options will be discussed at the Study Session on October 26th.
History
During preparation of the 2009 Comprehensive Water Plan, a deficiency in our ability
to meet the projected future water demands led to the City executing agreements with
Tacoma to secure the right to up to 3.5 million gallons per day (mgd) annual average
daily use (5.12 mgd maximum daily use) of wholesale water supply, at a cost of $15.3
million.
The City is also required to pay for the actual water used from Tacoma. The current
rates for purchasing Tacoma water are a winter rate of $2.12 per 100 cubic feet (ccf)
and a summer rate of $2.64 per ccf.
Current and Future Projected Water Demands
The 2015 maximum day water demand is 15 million gallons per day (mgd), and is
expected to increase to 19.2 mgd by 2035. The City will complete the rehabilitation
DI.F AUBURN * MORE THAN YOU IMAGINED Page 44 of 51
and reconstruction of some of its sources (Wells 1, 2, 4, and 6) by 2017, increasing
supply capacity to 24 mgd, including the use of the existing Tacoma supply. Additional
supply sources are needed to meet future peak demands and to provide redundancy
when Auburn's sources need to be removed from service for maintenance or
rehabilitation during the 20 -year planning period.
Reviewed by Council Committees:
Councilmember: Staff: Snyder
Meeting Date: October 26, 2015 Item Number: DI.F
DI.F AUBURN * MORE THAN YOU IMAGINED Page 45 of 51
City of Auburn
Water Supply
Strategies
October26, 2015
City Council Study Session
Auburn Water Supply P t remand
2015 Water supply sources = 15 million
gallons per day (mgd)
Meets current demand of 15 mgd
Includes 5.1 mgd block purchased from Tacoma for
$15.3 million (paid between 2012 and 2029)
Purchase only pays System Development Charge,
Auburn still has to pay for daily quantity of Tacoma
water used
2016 Water supply sources = 21 mgd
16 mgd Auburn + 5 mgd Tacoma sources
2017 Water supply sources = 24 mgd
DLF 19 mgd Auburn + 5 mgd Tacoma source$age 47 of 51
Key Question =Which water supply
service strategy should Auburn pursue
to ensure sufficient redundancy.?
Invest in expanding Auburn's water supply
sources and minimize Tacoma purchases
OR
Purchase additional block of water from
Tacoma
OR
DI.F Utilize Tacoma's take -or -pay 4[tprj1ptive
Staff Recommendations:
Make capital investment to increase
Auburn's water supply capacity by 4.3
mgd for $5.8 million = Highest ROI
Do not purchase additional 3.7 mgd
from Tacoma for $10.9 million
Do not utilize Tacoma's take -or -pay
option
DI.F Page 49 of 51
Cost /Benefit Analysis — Auburn Capital Investment vs.
Tacoma Block Purchase
Additional source capacity
Availability of sources
Existing staff resources
Additional quantity, mgd*
Capital Cost (2015$)
Operating Cost, $/ccf **
Utility rate impact
Reliability
Risk
m[gA-- million gallons per day
ccf = ioo cubic feet
Fr Auburn
Coal Creek Springs
Improvements
2020+
0.2 FTE (2018 -2020)
4.3 mgd
$5.8 million
($1.35 million per mgd)
$0.36
Lower (2.6% average
annually over 20 years)
Medium to High
Low
Existing interties
Now
Minimal
3.7 mgd
610.9 million
($2.96 million per mgd)
$2.12 -2.64
Higher (3.0% average
annually over 20 years)
Page 50 of 51
Medium to High
Medium
9
Tacoma's Take -or -Pay Option:
Tacoma has offered City the option to
purchase water on a take -or -pay basis
Costs range from $2.64 /ccf for 2.5 mgd to
$0.77 /ccf for 8 mgd
Tacoma market rate would have to be
less than $0.77 /ccf to be more cost-
effective than expanding /improving City
sources
DI.F Page 51 of 51