HomeMy WebLinkAbout20141230000808 STORM WATER EASEMENT AND MAINT AGREEMENT 6/1/2014N� v7- 21 -os o�-°`l
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20161230000808
FIRST AMERICAN EAS 163.00
PAGE-001 OF 020
12/30/2014 11:37
KING COUNTY, WA
Above this line reserved for recordina information.
STORM WATER EASEMENT AND MAINTENANCE AGREEMENT
FAC13- 0005
`:li LIfaBll:�`: I`6R Vt1I.7i ? ?.TZ.i'�'.D / ve.
Reference # (if applicable): N/A 17f- .n ;,,`0:kp ;
Grantor /Borrower: Orion Industries
Grantee /Assignee /Beneficiary: City of Auburn
Legal Description /STR: 7- 21N -05E and 12- 21N -04E
Assessor's Tax Parcel ID#: 000080 -0026, 000080 -0022
THIS EASEMENT AND AGREEMENT made and entered into this �_ day of
�u-^t E 2014, by and between the City of Auburn, a municipal corporation of
King County, Washington, hereinafter referred to as "CITY" and Orion Industries, a Washington
nonprofit corporation hereinafter referred to as `PROPERTY OWNER ".
WHEREAS, PROPERTY OWNER has applied for certain permits with the CITY for the
construction of facilities located at 1580 A Street NE, which create impervious surface; and
WHEREAS, the PROPERTY OWNER will complete a storm system; and
WHEREAS, the PROPERTY OWNER and the CITY desire that the storm system be
maintained to provide adequate facilities for controlling both the quantity and quality of storm
drainage; and
WHEREAS, for maintenance of a storm system it is necessary to have appropriate
right -of -way to bring in equipment to conduct maintenance functions; and
WHEREAS, the parties desire the maintenance requirement to be a covenant running
with the land and binding upon all heirs, successors and assigns of both parties; and
WHEREAS, the parties desire that this Agreement be recorded to advise heirs,
successors and assigns of both parties as to the existence of this easement and agreement;
and
WHEREAS, an easement is needed to bring in maintenance equipment; and
WHEREAS, the parties are both desirous of permitting inspection of the storm system
to make certain that it is functioning properly and for purposes of determining the appropriate
repairs.
NOW, THEREFORE, BASED UPON MUTUAL COVENANTS TO BE DERIVED THE
PARTIES AGREE AS FOLLOWS:
*iq Co. R Ewrd6 L vision
By SFa, 1�4 Dsrwty
03
FZ'' RICAN----
-
jo 143
Return Address:
City of Auburn
City Clerk
25 West Main
Auburn, WA 98001
N� v7- 21 -os o�-°`l
s� 07- zl -oS' o4U��
20161230000808
FIRST AMERICAN EAS 163.00
PAGE-001 OF 020
12/30/2014 11:37
KING COUNTY, WA
Above this line reserved for recordina information.
STORM WATER EASEMENT AND MAINTENANCE AGREEMENT
FAC13- 0005
`:li LIfaBll:�`: I`6R Vt1I.7i ? ?.TZ.i'�'.D / ve.
Reference # (if applicable): N/A 17f- .n ;,,`0:kp ;
Grantor /Borrower: Orion Industries
Grantee /Assignee /Beneficiary: City of Auburn
Legal Description /STR: 7- 21N -05E and 12- 21N -04E
Assessor's Tax Parcel ID#: 000080 -0026, 000080 -0022
THIS EASEMENT AND AGREEMENT made and entered into this �_ day of
�u-^t E 2014, by and between the City of Auburn, a municipal corporation of
King County, Washington, hereinafter referred to as "CITY" and Orion Industries, a Washington
nonprofit corporation hereinafter referred to as `PROPERTY OWNER ".
WHEREAS, PROPERTY OWNER has applied for certain permits with the CITY for the
construction of facilities located at 1580 A Street NE, which create impervious surface; and
WHEREAS, the PROPERTY OWNER will complete a storm system; and
WHEREAS, the PROPERTY OWNER and the CITY desire that the storm system be
maintained to provide adequate facilities for controlling both the quantity and quality of storm
drainage; and
WHEREAS, for maintenance of a storm system it is necessary to have appropriate
right -of -way to bring in equipment to conduct maintenance functions; and
WHEREAS, the parties desire the maintenance requirement to be a covenant running
with the land and binding upon all heirs, successors and assigns of both parties; and
WHEREAS, the parties desire that this Agreement be recorded to advise heirs,
successors and assigns of both parties as to the existence of this easement and agreement;
and
WHEREAS, an easement is needed to bring in maintenance equipment; and
WHEREAS, the parties are both desirous of permitting inspection of the storm system
to make certain that it is functioning properly and for purposes of determining the appropriate
repairs.
NOW, THEREFORE, BASED UPON MUTUAL COVENANTS TO BE DERIVED THE
PARTIES AGREE AS FOLLOWS:
*iq Co. R Ewrd6 L vision
By SFa, 1�4 Dsrwty
Section 1, EASEMENT
PROPERTY OWNER hereby grants a non - exclusive easement to the City for access,
inspection, and maintenance of a storm water system as set forth in this Agreement and the
attached Storm Water Pollution Prevention Plan, over, under and on that real estate described
in Exhibit "A" & "B" and on that portion of the property as showing on the approved Record
Drawings revised pursuant to construction records for the City of Auburn under Permit No.
FAC13 -0005, which record drawings are hereby incorporated by reference as if set out in full
(such area is referred to herein as the "Easement Area "). This easement shall be a burden to
that real estate which is legally described and attached as Exhibit "A" & "B" and incorporated
herein by this reference, and shall be a benefit to the City Storm Drainage Utility System.
Section 2, HEIRS, SUCCESSORS AND ASSIGNS
This Agreement shall be binding upon the heirs, successors and assigns of the parties.
Section 3, MAINTENANCE
The PROPERTY OWNER agrees to maintain the storm system in accordance with the
ordinances and all applicable codes of the CITY and the Storm Water Pollution Prevention
Maintenance and Operation Schedule attached as Exhibit "C" and incorporated herein by this
reference. The PROPERTY OWNER does hereby agree that the CITY may, upon at least one
business day's prior notice, or less if an emergency, as defined in ACC 3.10.050, exists, enter
onto the property of the PROPERTY OWNER via the easement described above to inspect and
perform necessary maintenance if, after the PROPERTY OWNER is given written notice to
maintain, the PROPERTY OWNER fails to maintain within a reasonable time of such notice.
Further, the PROPERTY OWNER agrees the CITY may enter onto the property of PROPERTY
OWNER via the easement described above to perform emergency maintenance in the event of
the storm system's failure which might result in adverse impacts(s) on public facilities or private
facilities of other property owners. In both events the PROPERTY OWNER agrees to
reimburse the CITY for the actual costs incurred by the CITY in maintaining the storm system.
Should the CITY incur attorney's fees and /or costs in enforcing the agreement and /or in
maintaining or collecting maintenance fees, the PROPERTY OWNER agrees to pay reasonable
attorney's fees and all costs incurred by the CITY. In connection with any entry onto
PROPERTY OWNER'S Property, including the Easement Area, the City shall use reasonable
efforts to perform any work in the Easement Area in a manner that minimizes interference and
disruption to PROPERTY OWNER or its employees, agents, contractors, customers and other
invitees. PROPERTY OWNER agrees to make reasonable accommodations to permit the City
access to the Easement Area and the storm water system, and to coordinate such work so that
disruption to the City's other operations is minimized.
Section 4, ACKNOWLEDGMENT OF OTHER ENFORCEMENT ACTIONS
PROPERTY OWNER acknowledges that there may be liability for violations of City
codes that could result in additional fines and /or the possibility of incarceration in addition to the
fees for maintenance should violations occur.
Section 5, ADDITIONAL COVENANTS
PROPERTY OWNER reserves the right to use and occupy the Easement Area in any
manner not inconsistent with the rights conveyed herein, provided that such use and occupancy
by the PROPERTY OWNER shall not interfere with the City's use of the Easement Area
pursuant to this Agreement.
In the event any of PROPERTY OWNER'S Property, or any portion thereof, is in any
manner disturbed by the activities of the City or its contractors or agents relating to, or arising
from, the exercise of any of the City's rights under this Easement, the City shall promptly
remove all debris and restore PROPERTY OWNER's Property to the condition in which such
existed at the commencement of such activities.
[signatures on the following pages]
EXECUTED as of the date first written above.
ORION INDUSTRIES, a Washington
non rofilt cor oration
J
By:
Its: J�fP S/ C �� Date
STATE OF WASHINGTON )
) ss
COUNTY OF KING ) ��
I certify that I know or have satisfactory evidence that J ° il are the person(s) who appeared before me, and said persons
acknowledged that he /she /they signed this instrument, on oath stated that he /she /they are the
property owners and as such are authorized to execute the instrument and acknowledged it as
his /her /their free and.voluntary act for the uses and purposes mentioned in this instrument.
Dated S/ 2 r
Notary Public
State of Washington
LAURA D HAMAN
My Appolntment Expires Jul 1, 2014:
Lour-0- D 1- ICirna ✓n
ary Public in and for the State of Washington
>iding at Kenn Courrly
appointment expires Ju l I; 2-01y
CITY OF AUBURN
Storm Drainage Engineer and authorized signatory
STATE OF WASHINGTON )
) ss.
COUNTY OF KING )
I certify that I know or have satisfactory evidence that Tim Carlaw is the person who appeared
before me, and said person acknowledged that he signed this instrument, on oath stated that
he was authorized to execute the instrument and acknowledged it as the STORM DRAINAGE
ENGINEER of THE CITY OF AUBURN to be the free and voluntary act of such party for the
uses and purposes mentioned in this instrument.
Dated & /// )
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Notary Public in and for the State of ashin ton
Residing
My appointment expires 1
Retum Address:
City of Auburn
City Clerk
25 West Main
Auburn, WA 98001
Above this line reserved for recording information.
STORM WATER EASEMENT AND MAINTENANCE AGREEMENT
FACl3 -0005
Reference # (if applicable): N/A
Grantor /Borrower: Orion Industries
Grantee /Assignee /Beneficiary:
Legal Description /STR:
Assessor's Tax Parcel ID #:
City of Auburn
7- 21N -051-` and 12 -21N -046
000080 -0022
EXHIBIT A
NEW PARCEL OF CITY OF AUBURN BOUNDARY LINE ADJUSTMENT NO. 13-0004, RECORDED UNDER RECORDING
NUMBER 20140203900004, RECORDS OF KING COUNTY, WASHINGTON, MORE PARTICULARLY DESCRIBED AS
FOLLOWS:
PARCEL A, CITY OF AUBURN BOUNDARY LINE ADJUSTMENT NO. BLA 12 -0003, RECORDED JANUARY 24, 2013, AS
RECORDING NO. 20130124900008, IN KING COUNTY, WASHINGTON;
AND
LOTA OF CITY OF AUBURN SHORT PLAT NO. SPL 0005 -90, AS RECORDED JULY 9, 1990 UNDER RECORDING NO.
9007091058, RECORDS OF KING COUNTY, WASHINGTON;
EXCEPT THE NORTH 40.00 FEET OF SAID LOT A OF CITY OF AUBURN SHOR I PLAT NO. SPL 0005-90.
EXCEPNNG THEREFROM THAT PORTION DEDICATED TO THE CIIY OF AURURN BY DEED RECORDED JULY 10, 2013
AS RECORDING NO. 20130710001171.
EXHIBIT B
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ho ra�:a, 1 " =12G' Vei:col !d /A LATITUDE DEVELOPMENT 15863
GFigV 18216 -A g Gvz saunt 1801 WEST VALLEY HWY
S�= I:tM. 'r:F 950.72
(a251251- 5222 1_
(425)251 -8792 F>X Title-
CIVIL $hCE4
CIVIL ENGINEERING, LAND
� FL NNING. SURVEYING, SITE PLAN 1 1
ENVIRONMENT SERVI�:ES _ of
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EXHIBIT V
STORM WATER POLLUTION PREVENTION
MAINTENANCE and OPERATION SCHEDULE
for
ORION AEROSPACE
SEPA NO.
SEP12 -0030
FAC NO.
FAC13 -0005
GRA NO.
GRA12 -0011
Site Address:
The project is located in the Southwest quarter of Section 7, Township 21
North, Range 5 East and the Southeast quarter of Section 12, Township 21
North, Range 4 East, W.M., south side of Auburn Airport at 'A' Street N.E.
The tax parcel number is 000080 -0026 and 000080 -0022.
Introduction:
This storm drainage technical information report has been prepared to
address the City of Auburn's site development and storm drainage
requirements for the proposed Orion Aerospace located at south of Auburn
Airport at 'A Street N.E. The site has an area of approximately 4.99 acres
and is currently vacant pastureland with a few trees and brush. The subject
site will be an aerospace building with surrounding parking, landscaping,
and a stormwater pond.
According to the City of Auburn's Construction Standards for storm water
management, the city requires storm water quantity and quality control to all
proposed developments. We have proposed to collect all of the storm
water runoff from the landscaped, building and pavement areas in a series
of catch basins. This water will be conveyed by storm drainage pipe to a
storm water wetland/ detention pond located along the eastern side of the
site. Here the storm water will be released into a large 5- to 6 -foot deep
ditch flowing westerly along the northern property line of the site through
36- inch - diameter culvert under 'B' Street N.W. then northerly for several
thousand feet. The ultimate discharge point is into Mill Creek.
Plan Goal:
The specific purpose for the storm water facility is to minimize pollution that
is typically associated with modern development. In general, pollution from
motor vehicles and pollution generated from erosion. Attached to this
narrative is a maintenance manual, which offers guidelines to the owner for
storm water facility maintenance.
Prevention BMP'S:
The catch basins shall have stenciled on them "DUMP NO WASTE —
DRAINS TO STREAM." The owner shall be responsible for sweeping the
lot, installing storm drainage stenciling and provide spill control procedures.
In case of spill call DOE at 1-425- 649 -7000. The catch basins,
detention /wetpond, and control structures will be visually inspected for
accumulation of debris and silt and will be maintained as required by this
pollution prevention plan and attachments.
• Maintenance Standards for Drainage Facilities (from the City of Auburn
Surface Water Management Manual, November 2009)
No. 1 — Detention Pond
No. 4 — Control Structure /Flow Restrictor
No. 5 — Catch Basins
No. 6 — Debris Barriers (e.g., Trash Racks)
No. 11 - Wetponds
Treatment BMP'S:
A two - celled detention /stormwater wetland has been installed to treat runoff
for conventional pollutants. The stormwater wetland was designed to treat
64% of the 2 -year storm event (water quality storm) for water quality
treatment. In addition, the detention pond was designed to detain the
volume created from releasing half the existing 2 -year, 10, 25, and 100 -year
storm events, while holding the developed 2 -year, 10, 25, and 100 -year
storm volumes.
Inspection /Maintenance:
Regular inspections of the drainage facilities should be carried out twice per
year, in the spring and fall. The responsible party should keep records of
these inspections available for review by the City. Additional inspections
may be required after severe storms.
Routine maintenance of the site will include mowing, care of landscaping
and the removal of trash and debris from the drainage system. The parking
lots and driveways should be kept clean and in repair. Events such as
major storms or heavy winds will require immediate inspections for
damages.
To ensure proper water quality and treatment, the detention /stormwater
wetland must be properly maintained. Be careful to avoid introducing
landscape fertilizer to receiving waters or groundwater. If pond side slopes
become eroded over 2" deep, stabilize by using appropriate erosion control
measures (e.g., rock reinforcement, planting of grass, compaction).
Catch basins shall be cleaned when sump is 1/3' full of sediment or debris.
Person of Responsibility:
Jack Kinnemann
Orion Industries
1580 A Street NE
Auburn, WA 98002
(253) 661 -7805 jack.kennemann @orionquality.com
Design Engineer:
Barghausen Consulting Engineers, Inc.
18215 — 72nd Avenue South
Kent, WA 98032
(425) 251 -6222
Plan and /or Information Updates:
The City of Auburn Storm Drainage Utility section is to review and approve
any changes to this Storm Water Pollution Prevention Plan prior to changes
in its implementation. Additionally, any changes in ownership or person of
responsibility are to be reported to the City Storm Drainage Utility section.
INSPECTION / MAINTENANCE CHECKLIST
STRUCTURE
DATE OF INSPECTION /MAINTENANCE
Results/
Maintenance
Date
Inspection
All Catch Basins
Results
Maintenance
Done
Storm Detention/
Inspection
Wetland
Results
Maintenance
Done
Inspection
Conveyance Pipes
Results
Maintenance
z
Done
Flow Control
Inspection
Structure
Results
Maintenance
Done
STORMWATER TREATMENT WETLAND MAINTENANCE
8.2.3.11 Operation and Maintenance
• Inspect wetlands at least twice per year during the first three years during
both growing and non - growing seasons to observe plant species presence,
abundance, and condition; bottom contours and water depths relative to
plans; and sediment, outlet, and buffer conditions.
• Schedule maintenance around sensitive wildlife and vegetation seasons.
• Plants may require watering, physical support, mulching, weed removal, or
replanting during the first three years.
• Remove nuisance plant species and replant desirable species.
Maintenance Standards for Drainage Facilities:
The facility- specific maintenance standards contained in this section are
intended to be conditions for determining if maintenance actions are
required as identified through inspection. They are not intended to be
measures of the facility's required condition at all times between
inspections. In other words, exceeding these conditions at any time
between inspections and /or maintenance does not automatically constitute
a violation of these standards. However, based upon inspection
observations, the inspection and maintenance schedules shall be adjusted
to minimize the length of time that a facility is in a condition that requires a
maintenance action.
No. 1 — Detention Ponds
Maintenance
Defect
Conditions When Maintenance Is
Results Expected When
Component
Needed
Maintenance Is Performed
General
Trash & Debris
Any trash and debris which exceed 5
Trash and debris cleared from site.
cubic feet per 1,000 square feet (this
is about equal to the amount of trash
it would take to fill up one standard
size garbage can). In general, there
should be no visual evidence of
dumping.
If less than threshold all trash and
debris will be removed as part of next
scheduled maintenance.
Poisonous
Any poisonous or nuisance
No danger of poisonous vegetation
Vegetation and
vegetation which may constitute a
where maintenance personnel or the
noxious weeds
hazard to maintenance personnel or
public might normally be. (Coordinate
the public.
with local health department.)
Any evidence of noxious weeds as
Complete eradication of noxious weeds
defined by State or local regulations.
may not be possible. Compliance with
(Apply requirements of adopted IPM
State or local eradication policies
I
policies for the use of herbicides).
required.
Contaminants
Any evidence of oil, gasoline,
No contaminants or pollutants present.
and Pollution
contaminants or other pollutants.
(Coordinate removal /cleanup with
local water quality response agency).
Rodent Holes
Any evidence of rodent holes if
Rodents destroyed and dam or berm
facility is acting as a dam or berm, or
repaired. (Coordinate with local health
any evidence of water piping through
department; coordinate with Ecology
dam or berm via rodent holes.
Dam Safety Office if pond exceeds 10
acre - feet.)
No. 1 - Detention Ponds
Maintenance
Defect
Conditions When Maintenance Is
Results Expected When
Component
Needed
Maintenance Is Performed
Beaver Dams
Dam results in change or function of
Facility is returned to design function.
the facility.
(Coordinate trapping of beavers and
removal of dams with appropriate
permitting agencies.)
Insects
When insects such as wasps and
Insects destroyed or removed from site.
hornets interfere with maintenance
Apply insecticides in compliance with
activities.
adopted IPM policies.
Tree Growth
Tree growth does not allow
Trees do not hinder maintenance
and Hazard
maintenance access or interferes
activities. Harvested trees should be
Trees
with maintenance activity (i.e., slope
recycled into mulch or other beneficial
mowing, silt removal, vactoring, or
uses (e.g., alders for firewood).
equipment movements). If trees are
Remove hazard trees.
not interfering with access or
maintenance, do not remove.
If dead, diseased, or dying trees are
identified.
(Use a certified Arborist to determine
health of tree or removal
requirements.)
Side Slopes
Erosion
Eroded damage over 2 inches deep
Slopes should be stabilized using
of Pond
where cause of damage is still
appropriate erosion control measure(s);
present or where there is potential for
e.g., rock reinforcement, planting of
continued erosion.
grass, compaction.
Any erosion observed on a
If erosion is occurring on compacted
compacted berm embankment.
berms a licensed civil engineer should
be consulted to resolve source of
erosion.
Storage Area
Sediment
Accumulated sediment that exceeds
Sediment cleaned out to designed pond
10% of the designed pond depth
shape and depth; pond reseeded if
unless otherwise specified or affects
necessary to control erosion.
inlefting or outletting condition of the
facility.
Liner (If
Liner is visible and has more than
Liner repaired or replaced. Liner is fully
Applicable)
three 1/4 -inch holes in it.
covered.
No. 1 - Detention Ponds
Maintenance
Defect
Conditions When Maintenance Is
Results Expected When
Component
Needed
Maintenance Is Performed
Pond Berms
Settlements
Any part of berm that has settled 4
Dike is built back to the design
(Dikes)
inches lower than the design
elevation.
elevation.
If settlement is apparent, measure
berm to determine amount of
settlement.
Settling can be an indication of more
severe problems with the berm or
outlet works. A licensed civil
engineer should be consulted to
determine the source of the
settlement.
Piping
Discernable water flow through pond
Piping eliminated. Erosion potential
berm. Ongoing erosion with potential
resolved.
for erosion to continue.
(Recommend a Goethechnical
engineer be called in to inspect and
evaluate condition and recommend
repair of condition.
Emergency
Tree Growth
Tree growth on emergency spillways
Trees should be removed. If root
Overflow/
creates blockage problems and may
system is small (base less than 4
Spillway and
cause failure of the berm due to
inches) the root system may be left in
Berms over 4
uncontrolled overtopping.
place. Otherwise the roots should be
feet in height.
Tree growth on berms over 4 feet in
removed and the berm restored. A
height may lead to piping through the
licensed civil engineer should be
berm which could lead to failure of
consulted for proper berm /spillway
the berm.
restoration.
Piping
Discernable water flow through pond
Piping eliminated. Erosion potential
berm. Ongoing erosion with potential
resolved.
for erosion to continue.
(Recommend a Goethechnical
engineer be called in to inspect and
evaluate condition and recommend
repair of condition.
Emergency
Emergency
Only one layer of rock exists above
Rocks and pad depth are restored to
Overflow/
Overflow/
native soil in area five square feet or
design standards.
Spillway
Spillway
larger, or any exposure of native soil
at the top of out flow path of spillway.
(Riprap on inside slopes need not be
replaced.)
Erosion
See "Side Slopes of Pond."
No. 4 - Control Structure /Flow Restrictor
Maintenance
Defect
Condition When Maintenance is Needed
Results Expected
Component
When Maintenance
is Performed
General
Trash and Debris
Material exceeds 25% of sump depth or 1
Control structure
(Includes Sediment)
foot below orifice plate.
orifice is not blocked.
All trash and debris
removed.
Structural Damage
Structure is not securely attached to
Structure securely
manhole wall.
attached to wall and
outlet pipe.
Structure is not in upright position (allow up
Structure in correct
to 10% from plumb).
position.
Connections to outlet pipe are not watertight
Connections to outlet
and show signs of rust.
pipe are watertight,
structure repaired or
replaced and works
as designed.
Any holes, other than designed holes, in the
Structure has no
structure.
holes other than
designed holes.
Cleanout Gate
Damaged or Missing
Cleanout gate is not watertight or is missing.
Gate is watertight
and works as
designed.
One maintenance person cannot move up
Gate moves up and
and down gate.
down easily and is
watertight.
Chain /rod leading to gate is missing or
Chain is in place and
damaged.
works as designed.
Gate is rusted over 50% of its surface area.
Gate is repaired or
replaced to meet
design standards.
Orifice Plate
Damaged or Missing
Control device is not working properly due to
Plate is in place and
missing, out of place, or bent orifice plate.
works as designed.
Obstructions
Any trash, debris, sediment, or vegetation
Plate is free of all
blocking the plate.
obstructions and
works as designed.
Overflow Pipe
Obstructions
Any trash or debris blocking (or having the
Pipe is free of all
potential of blocking) the overflow pipe.
obstructions and
works as designed.
Manhole
See "Closed
See "Closed Detention Systems" (No. 3).
See "Closed
Detention Systems"
Detention Systems"
(No. 3).
(No. 3).
Catch Basin
See "Catch Basins"
See "Catch Basins" (No. 5).
See "Catch Basins'
(No. 5).
(No. 5).
No. 5 — Catch Basins
Maintenance
Defect
Conditions When Maintenance is Needed
Results Expected When
Component
Maintenance is
performed
General
Trash &
Trash or debris which is located immediately
No Trash or debris located
Debris
in front of the catch basin opening or is
immediately in front of
blocking inletting capacity of the basin by
catch basin or on grate
more than 10 %.
opening.
Trash or debris (in the basin) that exceeds 60
No trash or debris in the
percent of the sump depth as measured from
catch basin.
the bottom of basin to invert of the lowest
pipe into or out of the basin, but in no case
less than a minimum of six inches clearance
from the debris surface to the invert of the
lowest pipe.
Trash or debris in any inlet or outlet pipe
Inlet and outlet pipes free
blocking more than 1/3 of its height.
of trash or debris.
Dead animals or vegetation that could
No dead animals or
generate odors that could cause complaints
vegetation present within
or dangerous gases (e.g., methane).
the catch basin.
Sediment
Sediment (in the basin) that exceeds 60
No sediment in the catch
percent of the sump depth as measured from
basin.
the bottom of basin to invert of the lowest
pipe into or out of the basin, but in no case
less than a minimum of 6 inches clearance
from the sediment surface to the invert of the
lowest pipe.
Structure
Top slab has holes larger than 2 square
Top slab is free of holes
Damage to
inches or cracks wider than 1/4 inch.
and cracks.
Frame and /or
Top Slab
(Intent is to make sure no material is running
into basin).
Frame not sitting flush on top slab, i.e.,
Frame is sitting flush on
separations of more than 3/4 inch of the
the riser rings or top slab
frame from the top slab. Frame not securely
and firmly attached.
attached
Fractures or
Maintenance person judges that structure is
Basin replaced or repaired
Cracks in
unsound.
to design standards.
Basin Walls/
Bottom
Grout fillet has separated or cracked wider
Pipe is regrouted and
than 1/2 inch and longer than 1 foot at the
secure at basin wall.
joint of any inlet/outlet pipe or any evidence of
soil particles entering catch basin through
cracks.
Settlement/
If failure of basin has created a safely,
Basin replaced or repaired
Misalignment
function, or design problem.
to design standards.
Vegetation
Vegetation growing across and blocking more
No vegetation blocking
than 10% of the basin opening.
opening to basin.
No. 5 — Catch Basins
Maintenance
Defect
Conditions When Maintenance is Needed
Results Expected When
Component
Needed
Maintenance is
General
Trash and
Trash or debris that is plugging more
performed
Debris
Vegetation growing in inlet/outlet pipe joints
No vegetation or root
Metal
Damaged/
that is more than six inches tall and less than
growth present.
Missing
six inches apart.
than 3/4 inch.
Contamination
See "Detention Ponds" (No. 1).
No pollution present.
and Pollution
Bars are missing or entire barrier
Bars in place according to design.
Catch Basin
Cover Not in
Cover is missing or only partially in place.
Catch basin cover is
Cover
Place
Any open catch basin requires maintenance.
closed.
Locking
Mechanism cannot be opened by one
Mechanism opens with
Mechanism
maintenance person with proper tools. Bolts
proper tools.
Not Working
into frame have less than 1/2 inch of thread.
Cover Difficult
One maintenance person cannot remove lid
One maintenance person
to Remove
after applying normal lifting pressure.
can remove cover.
(Intent is keep cover from sealing off access
to maintenance.)
Ladder
Ladder Rungs
Ladder is unsafe due to missing rungs, not
Ladder meets design
Unsafe
securely attached to basin wall,
standards and allows
misalignment, rust, cracks, or sharp edges.
maintenance person safe
access.
Metal Grates
Grate opening
Grate with opening wider than 7/8 inch.
Grate opening meets
(If Applicable)
Unsafe
design standards.
Trash and
Trash and debris that is blocking more than
Grate free of trash and
Debris
20% of grate surface inletting capacity.
debris.
Damaged or
Grate missing or broken member(s) of the
Grate is in place and
Missing.
grate.
meets design standards.
No. 6 — Debris Barriers (e.g., Trash Racks)
Maintenance
Defect
Condition When Maintenance is
Results Expected When
Components
Needed
Maintenance is Performed
General
Trash and
Trash or debris that is plugging more
Barrier cleared to design flow
Debris
than 20% of the openings in the barrier.
capacity.
Metal
Damaged/
Bars are bent out of shape more than 3
Bars in place with no bends more
Missing
inches.
than 3/4 inch.
Bars.
Bars are missing or entire barrier
Bars in place according to design.
missing.
Bars are loose and rust is causing 50%
Barrier replaced or repaired to
deterioration to any part of barrier.
design standards.
Inlet/Outlet
Debris barrier missing or not attached to
Barrier firmly attached to pipe.
Pipe
pipe.
No. 11 - Wetponds
Maintenance
Defect
Condition When Maintenance
Results Expected When Maintenance is
Component
is Needed
Performed
General
Water level
First cell is empty, doesn't hold
Line the first cell to maintain at least 4 feet
water,
of water. Although the second cell may
drain, the first cell must remain full to
control turbulence of the incoming flow
and reduce sediment resuspension.
Trash and
Accumulation that exceeds 1
Trash and debris removed from pond.
Debris
CF per 1000 -SF of pond area.
Inlet/Outlet
Inlet /outlet pipe clogged with
No clogging or blockage in the inlet and
Pipe
sediment and /or debris material.
outlet piping.
Sediment
Sediment accumulations in
Sediment removed from pond bottom.
Accumulation
pond bottom that exceeds the
in Pond
depth of sediment zone plus 6-
Bottom
inches, usually in the first cell.
Oil Sheen on
Prevalent and visible oil sheen.
Oil removed from water using oil -
Water
absorbent pads or vactor truck. Source of
oil located and corrected. If chronic low
levels of oil persist, plant wetland plants
such as Juncus effusus (soft rush) that
can uptake small concentrations of oil.
Erosion
Erosion of the pond's side
Slopes stabilized using proper erosion
slopes and /or scouring of the
control measures and repair methods.
pond bottom, that exceeds 6-
inches, or where continued
erosion is prevalent.
Settlement of
Any part of these components
Dike/berm is repaired to specifications.
Pond
that has settled 4- inches or
Dike /Berm
lower than the design elevation,
or inspector determines
dike /berm is unsound.
Internal Berm
Berm dividing cells should be
Berm surface is leveled so that water
level.
flows evenly over entire length of berm.
Overflow
Rock is missing and soil is
Rocks replaced to specifications.
Spillway
exposed at top of spillway or
outside slope.