HomeMy WebLinkAbout20111031000239 STORM WATER EASEMENT AND MAINT AGREEMENT 10/25/2011/3 —;;tI -0V (�o71907)
ity of Auburn I VIII VIII VIII VIII VIII VIII VIII VIIIVIIIIIIIIIII
C1 Clerk
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25 West Main 20111031000239
Auburn, WA 98001 FIRST AMERICAN EAS 142 00
PAGE -001 OF 019
10/31/2011 09 44
KING COUNTY, UA
Above this line reserved for recording information
°'PHIS EASEMENT AND AGREEMENT made and entered into this ---�S_day of
O o_) 6.0 e, , 2011, by and between the City of Auburn, a municipal corporation
of King County, Washington, hereinafter referred to as "CITY" and WAL -MART
STORES, INC., a Delaware corporation hereinafter referred to as "PROPERTY OWNER"
WHEREAS, PROPERTY OWNER has applied for certain permits with the CITY
for the construction of facilities for Retail located at 762 Supermall Way, Auburn, WA,
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, maintenance requirement is 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
1539015.1 82512011
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STORM WATER EASEMENT AND
MAINTENANCE AGREEMENT
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Reference # (if applicable):
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Grantor /Borrower'
Wal -Mart Stores, Inc.
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Grantee /Assignee /Beneficiary'
City of Auburn
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Le al Descri tion /STR.
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NW 1/4 of S24 & SW 1/4 of S13, T21, R04E
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Parcel A and B of Auburn SP# SPL I0 -0002 per
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Rec No's. 20110418900006 and
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20110418900006
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Assessor's Tax ParcelID#
1321049114,1321049119
°'PHIS EASEMENT AND AGREEMENT made and entered into this ---�S_day of
O o_) 6.0 e, , 2011, by and between the City of Auburn, a municipal corporation
of King County, Washington, hereinafter referred to as "CITY" and WAL -MART
STORES, INC., a Delaware corporation hereinafter referred to as "PROPERTY OWNER"
WHEREAS, PROPERTY OWNER has applied for certain permits with the CITY
for the construction of facilities for Retail located at 762 Supermall Way, Auburn, WA,
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, maintenance requirement is 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
1539015.1 82512011
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.
Section 1, EASEMENT
PROPERTY OWNER hereby provides a non - exclusive easement to the City for
access, inspection, and maintenance for the purposes of this Agreement only 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. FAC 05 -0021, which record drawings are hereby incorporated by
reference as if set out in full. 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.
parties.
Section 2, HEIRS, SUCCESSORS AND ASSIGNS
This Agreement shall be binding upon the heirs, successors and assigns of the
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
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
notice to maintain, the PROPERTY OWNER fails to maintain. 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 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 costs incurred by the CITY Neither CITY nor its agents or
contractors will cause any unnecessary damage or commit any unnecessary waste upon
1539015 1 8/25r2011 2
PROPERTY OWNERS Property in the course of performing any permitted activities
within the Easement and will restore any unnecessary damage caused to PROPERTY
OWNER'S Property to its original condition. CITY agrees that any maintenance or other
work performed within the Easement shall be conducted in such a manner so as to not
unnecessarily interfere with PROPERTY OWNER'S customers and patrons ingress and
egress to PROPERTY OWNER'S store or with vehicular ingress and egress of
PROPERTY OWNER'S customers and patrons to its store.
Section 4, ACKNOWLEDGMENT OF OTHER ENFORCEMENT ACTIONS
PROPERTY OWNER acknowledges that there may be liability for violations of
codes that could result in additional fines and/or the possibility of incarceration in addition
to the fees for maintenance should violations occur
EXECUTED as of the date first written above.
PROPERTY O
WAL -MART ST S INC., Delaware
corporation
Frank
Its: Director of Design
STATE OF ARKANSAS )
) ss
COUNTY OF BENTON )
This instrument was acknowledged before me this3Aday of '2011
by Frank V Pampalone, Director of Design for Wal -Mart Stores, Inc. a Delaware
corporation.
Notary Pub is for Arkansas �/1
My C ission Expires: 3— !3- 6y6 /a
15390151 825/2011 3
CITY OF AUBURN
7� `� /a/zS�/
arlaw, Storm Drainage Engineer Da et
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 lD l--)S 1 /
��L. BgpC
i Nj
TA
OP WASN\a`
1539015 1 8/2512011
Notary Public in and for the State of Washington
Residing at
--
Residing `,p c
My appointment expires I r
EXHIBIT A
LEGAL DESCRIPTION
THAT PORTION OF LOT 4, CITY OF AUBURN LOT LINE ADJUSTMENT NO
05 -0016 RECORDED UNDER KING COUNTY RECORDING NUMBER
2009100690003 DESCRIBED AS FOLLOWS
COMMENCING AT THE INTERSECTION OF THE CENTERLINE OF INDUSTRY
DRIVE SOUTHWEST AND THE SOUTH LINE OF THAT PORTION THEREOF
VACATED BY ORDINANCE NO 4668 OF THE CITY OF AUBURN, THENCE
NORTH 00 °14'30" WEST 260 29 FEET ALONG THE WEST LINE OF TRACT
A, CITY OF AUBURN SHORT PLAT NO SPL 000E -98 RECORDED 'UNDER
KING COUNTY RECORDING NO 9812221898, TO AN ANGLE POINT THEREIN
AND THE NORTH LINE OF AUBURN 400 CORPORATE PARK DIVISION I,
ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 128 OF PLATS,
PAGES 97 THROUGH 99, INCLUSIVE, RECORDS OF KING COUNTY,
WASHINGTON;
THENCE SOUTH 89 °19'52" WEST 30.61 FEET ALONG SAID NORTH LINE;
THENCE LEAVING SAID NORTH LINE NORTH 00 °13'46" WEST 34 70 FEET;
THENCE NORTH: 06 °12'44" EAST 50 32 FEET TO THE BEGINNING OF A
NON - TANGENT CURVE CONCAVE SOUTHWESTERLY HAVING A RADIUS OF
320 00 FEET (A RADIAL LINE TO SAID BEGINNING BEARS NORTH
89 °42'01" EAST);
THENCE NORTHERLY AND NORTHWESTERLY 271 96 FEET ALONG SAID CURVE
THROUGH A CENTRAL ANGLE O: 48 °41'41 ";
THENCE NORTH 48 °59'40" WEST 140.67 FEET TO THE BEGINNING OF A
CURVE CONCAVE NORTHEASTERLY HAVING A RADIUS OF 365 00 FEET;
THENCE NORTHWESTERLY 208 83 FEET ALONG SAID CURVE THROUGH A
CENTRAL ANGLE OF 32 °46'50" TO THE WESTERLf LINE OF LOT 1, CITY
OF AUBURN SHORT PLAT NO SPL 0005 -98 RECORDED UNDER KING COUNTY
RECORDING NO 9812221898;
THENCE NORTH 10 °21'40" EAST 589.66 FEET ALONG SAID WESTERLY
LINE TO THE SOUTH LINE OF SAID LOT 4 AND THE TRUE POINT OF
BEGINNING;
THENCE NORTH 89`44'17" EAST 53 38 FEET;
THENCE SOUTH 00 °15'43" EAST 27 62 FEET;
THENCE NORTH 89 °44'17" EAST 232 00 FEET,
THENCE NORTH 00 °28'2C" WEST 43 88 FEET;
THENCE NORTH 89 °31'40" EAST 386 41 FEET TO THE EASTERLY LINE OF
SAID LOT 4;
THENCE NORTH 00 °28'30" WEST 218 17 FEET ALONG THE EAST LINE OF
SAID LOT 4 TO AN ANGLE POINT THEREIN;
THENCE SOUTH 89 °32'44" WEST 5 24 FEET ALONG SAID EAST LINE OF
LOT 4 TO AN ANGLE POINT THEREIN;
THENCE NORTH 00 °31'57" WEST 611 06 FEET ALONG SAID EAST LINE TO
THE NORTH LINE OF SAID LOT 4;
THENCE ALONG THE NORTH LINE OF SAID LOT 4 THE FOLLOWING TWO
COURSES:
SOUTH 63 °13'22" WEST 1206 91 FEET;
THENCE SOUTH 7� °30'44" WEST 200 30 FEET TO A POINT WHICH BEARS
NORTH 77 °30'44" EAST 101 20 FEET FROM AN ANGLE POINT IN SAID
NORTH LINE;
THENCE SOUTH 00 °32'03" EAST 160.06 FEET;
THENCE SOUTH 22 °29'33" WEST 77 15 FEET TO THE SOUTHWESTERLY
LINE OF SAID LOT 4 AND A POINT WHICH BEARS SOUTH 67 °30'2l" EAST
195 80 FEET FROM THE MOST WESTERLY SOUTHWEST CORNER OF SAID LOT
4;
THENCE SOUTHEASTERLY, SOUTHERLY, AND EASTERLY ALONG THE
SOUTHWESTERLi AND SOUTHERLY LINES OF SAID LOT 4 THE FOLLOWING
FIVE COURSES:
SOUTH 67 °30'21" EAST 556 45 FEET TO THE BEGINNING OF A
TANGENTIAL CURVE, CONCAVE SOUTHWEST, HAVING A RADIUS OF 373.50
FEET, AND A CENTRAL ANGLE OF 41 °28'22 ";
THENCE SOUTHEASTERLY ALONG SAID CURVE A DISTANCE OF 270 35
FEET;
1539015.1 8/252011
THENCE NORTH 63058'01" EAST 8 50 FEET TO THE BEGINNING OF A
NON- TANGENTIAL CURVE, CONCAVE WESTERLY, HAVING P. RADIUS OF
382 00 FEET, A CENTRAL ANGLE OF 16 013'06 ", AND TO WHICH A
RADIAL LINE BEARS NORTH 63 058'01" EAST;
THENCE SOUTHERLY ALONG SAID CURVE A DISTANCE OF 108 13 FEET;
THENCE NORTH 89`44'17" EAST 16 18 FEET TO THE POINT OF
BEGINNING;
TOGETHER WITH EASEMENTS, RESTRICTIONS AND COVENANTS OF RECORD;
THE PARCEL DESCRIBED ABOVE CONTAINS 927,383 SQUARE FEET
(21.2898 ACRES), MORE OR LESS;
ALSO KNOWN AS PARCEL A OF THAT CITY OF AUBURN SHORT PLAT NUMBER
SPL 10 -0002, RECORDED UNDER NUMBER 20110418900006, RECORDS OF
KING COUNTY, WASHINGTON;
SITUATE IN THE CITY OF AUBURN, KING COUNTY, WASHINGTON
1539015.1 8252011 6
BCRA
AUBURN SHORT PLAT PARCELS
JAMES M HARPER, P L S
BRH JOE NO 2004210 09
AUGUST 10, 2011
BUSH, ROED 6 HITCHINGS, INC
2009 MINOR AVENUE EAST
SEATTLE, WA 98102
(2066) 323 -4144
LEGAL DESCRIPTION
THAT PORTION OF LOT 4, CITY OF AUBURN LOT LINE ADJUSTMENT NO.
05 -0016 RECORDED UNDER KING COUNTY RECORDING NUMBER
2009100690003 DESCRIBED AS FOLLOWS
COMMENCING AT THE INTERSECTION OF THE CENTERLINE OF INDUSTRY
DRIVE SOUTHWEST AND THE SOUTH LINE OF THAT PORTION THEREOF
VACATED BY ORDINANCE NO 4668 OF THE CITY OF AUBURN, THENCE
NORTH 00 °14'30" WEST 260 29 FEET ALONG THE WEST LINE OF TRACT
A, CITY OF AUBURN SHORT PLAT NO SPL 0005 -98 RECORDED UNDER
KING COUNTY RECORDING NO 9812221896, TO AN ANGLE POINT THEREIN
AND THE NORTH LINE OF AUBURN 400 CORPORATE PARK DIVISION I,
ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 128 OF PLATS,
PAGES 97 THROUGH 99, INCLUSIVE, RECORDS OF KING COUNTY,
WASHINGTON;
THENCE SOUTH 99 °19'52" WEST 30 61 FEET ALONG SAID NORTH LINE;
THENCE LEAVING SAID NORTH LINE NORTH 00 °13'46" WEST 34 70 FEET;
THENCE NORTH 06 °12'44" EAST 50 32 FEET TO THE BEGINNING OF A
NON- TANGENT CURVE CONCAVE SOUTHWESTERLY HAVING A RADIUS OF
320 00 FEET (A RADIAL LINE TO SAID BEGINNING BEARS NORTH
89'42'01" EAST);
:HENCE NORTHERLY AND NORTHWESTERLY 2-1 96 FEET ALONG SAID CURVE
THROUGH A CENTRAL ANGLE OF 48'41'41 ";
THENCE NORTH 48059'40" WEST 140.67 FEET TO THE BEGINNING OF A
CURVE CONCAVE NORTHEASTERLY HAVING A RADIUS OF 365.00 FEET;
THENCE NORTHWESTERLY 208 83 FEET ALONG SAID CURVE THROUGH A
CENTRAL ANGLE OF 32'46'50" TO THE WESTERLY LINE OF LOT 1, CITY
OF AUBURN SHORT PLAT NO SPL 0005 -98 RECORDED UNDER KING COUNTY
RECORDING NO. 961 2221398;
THENCE NORTH 10'2 1'40" EAST 589 66 FEET ALONG SAID WESTERLY
LINE TO THE SOUTH LINE OF SAID LOT 4;
THENCE NORTH 89'44'17" EAST 53 38 FEET;
THENCE SOUTH 00 °15'43" EAST 27 62 FEET;
THENCE NORTH 89'44'17" EAST 232 00 FEET;
THENCE NORTH 00 028'20" WEST 43 83 FEET;
THENCE NORTH 69'31'40" EAST 386 41 FEET TO THE EASTERLY LINE OF
SAID LOT 4;
THENCE NORTH 00'29'30" WEST 218 17 FEET ALONG THE EAST LINE OF
SAID LOT 4 TO AN ANGLE POINT THEREIN;
THENCE SOUTH 89 °32'44" WEST 5 24 FEET ALONG SAID EAST LINE OF
LOT 4 TO AN ANGLE POINT THEREIN;
THENCE NORTH 00 °31'57" WEST 671 06 FEET ALONG SAID EAST LINE TO
THE NORTH LINE OF SAID LOT 4;
THENCE ALONG THE NORTH LINE OF SAID LOT 4 THE FOLLOWING TWO
COURSES
SOUTH 83'13'22" WEST 1206 91 FEET;
THENCE SOUTH 77'30'44" WEST 200 30 FEET TO A POINT WHICH BEARS
NORTH 77'30'44" EAST 101 20 FEET FROM AN ANGLE POINT IN SAID
NORTH LINE, AND THE TRUE POINT OF BEGINNING;
THENCE CONTINUING SOUTH 77 °30'44" WEST ALONG SAID NORTH LINE A
DISTANCE OF 101.20 FEET TO AN ANGLE POINT THEREIN;
THENCE SOUTH 73'17'48" WEST 115 88 FEET ALONG SAID NORTH LINE
TO THE NORTHWEST CORNER OF SAID LOT 4;
THENCE SOUTH 00 °29'34" EAST ALONG THE WEST LINE OF SAID LOT 4,
A DISTANCE OF 101 28 FEET TO THE MOST WESTERLY SOUTHWEST CORNER
OF SAID LOT 4;
THENCE SOUTH 67030'21" EAST ALONG THE SOUTH LINE OF SAID LOT 4,
A DISTANCE OF 195 90 FEET;
THENCE NORTH 22'29'33" EAST 77 15 FEET;
THENCE NORTH 00'32'03" WEST 160 06 FEET TO THE POINT OF
BEGINNING;
TOGETHER WITH EASEMENTS, RESTRICTIONS AND COVENANTS OF RECORD;
1539015.1 825/2011
THE PARCEL DESCRIBED ABOVE CONTAINS 35,470 SQUARE FEET (0 8143
ACRE), MORE OR LESS
ALSO KNOWN AS PARCEL B OF THAT CITY OF AUBURN SHORT PLAT NUMBER
SPL 10 -0002, RECORDED UNDER NUMBER 20110418900006, RECORDS OF
KING COUNTY, WASHINGTON;
SITUATE IN THE CITY OF AUBURN, KING COUNTY, WASHINGTON,
1539015 1 8/25/2011 g
BCRA
AUBURN SHORT PLAT PARCELS
JAMES M. HARPER, P L S
3RH JOB NO 2004210.09
AUGUST 10, 2011
BUSH, ROED & HITCHINGS, INC
2009 MINOR AVENUE EAST
SEATTLE, WA 98102
(206) 323 -4144
EXHIBIT B
;13
r- PARCEL 8
BCRA®
] men.a] r men.nm».ea.asoYCC.�
]IL6MC(ICAVBOE, 0.RE 30,lA�0Yq YN ®In
1539015.1 8/2512011 9
EXHIBIT C
STORM WATER POLLUTION PREVENTION
MAINTENANCE and OPEATION SCHEDULE
for
Auburn Wal -Mart Supercenter
SEPA NO. SEP0101 -90
FAC NO. 05 -0021
GRA NO.
Site Address:
The project is located in the N.W. QTR of Section 24= Township 21 N.- Range
4 East, W.M., and the S.W. QTR of Section 13= Township 21 N.- Range 4
East, W.M., 1200 Supermall Way SW, Auburn, WA 98001 The tax parcel
number is 1 321 0491 1400.
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 Auburn Wal -Mart Supercenter located at 1200
Supermall Way SW, Auburn, WA 98001 The site has an area of
approximately 22.1 acres and is currently developed with parking lots for both
the Supermall and the theater, a stretch of the primary road for the mall and
the pedestrian route between the Interurban Trail and the mall. The
northeasterly portion of the site is partially graded and stabilized for future
development. The subject site will be a commercial retail store.
The subject site will consist of a large retail building with grocery, general
merchandise and a garden center, customer and employee parking, and a
new Interurban Trail route to facilitate pedestrian access to and from the
Supermall development.
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 landscape, building and pavement areas in a series of catch
basins. This water will be conveyed by storm drainage pipe to an existing
storm water conveyance swale which discharges into the existing 3- celled
detention /wet pond located west of the mall. Here the storm water will be
released into a wetland which flows into the Algona Tributary that flows to Mill
1539015.1 8252011 10
Mill Creek.
on the Wal-Mart aroperty and will be maintained by the owner of the Mall per
the Storm Drainage Report — On -Site Improvements for the Supermall of the
Great Northwest, Revised April 4, 1994, by KPFF Consulting Engineers
(Original Storm Report) — as well as any other agreement(s).
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 Department of
Ecology Storm Water Manual, August 2001)
No. 5 — Catch Basins
No. 6 — Debris Barriers (e.g., Trash Racks)
No. 7 — Energy Dissipaters
No.8 — Typical Biofiltration Swale
Treatment BMP'S:
A regional 3 -celld detention /wetpond was previously installed to treat runoff for
conventional pollutants. The wetpond was previously designed to treat 64% of
the 2 -year storm event (water quality storm) for water quality treatment. In
addition, the detention pond was previously designed to detain the volume
created from releasing the existing 2 -year, 25, and 100 -year storm events,
while holding the developed 100 -year 7 -day storm volumes, as outlined in the
Original Storm Report.
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
1539015.1 8125/2011 11
implementation. Additionally, any changes in ownership or person of
responsibility are to be reported to the City of Auburn Storm Drainage Utility
section.
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 /wetpond must be
properly maintained. Be careful to avoid introducing landscape fertilizer to
receiving waters or groundwater If wetpond 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:
Wal -Mart Stores, Inc.
2001 SE 10°i Street
Bentonville, AR 72716 -0550
(479) 279 -4000
Design Engineer:
BCRA
2106 Pacific Avenue, Suite 300
Tacoma, WA 98402
Phone: (253) 627 -4367
Plan and/or Information Updates:
The City of Auburn Storm Drainage Utility section is to review and approve any
1539015.1 8125/2011 12
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
.irdYpa1{ �Yry'1 • •''''d4 "• "L�}11"' . ` :iY M.: � °,Y�I.:rt Y�. n�innL} ' "{ yS(j. *[.,
�✓ :�y, 4ry} � °�y' { {#?'tf: i "�a'il's' ' , d:.�^nm a. "{ : { {: w' ..�W
K. ; DATE °`O�FINSPEGTICiIylliAA1NTENANCE z,�
x. � .'::'i�w, �: vT'�.,�.�. " µ' �L • b "r�`?s.':+F7ri..' � �"{X4. � ,�+�'!f:
Results/
Maintenance
Date
Inspection
All Catch Basins
Results
Maintenance
Done
All Debris Barriers
Inspection
Results
Maintenance
Done
Inspection
Conveyance Pipes
Results
Maintenance
Done
All Energy
Inspection
Dissipaters
Results
Maintenance
Done
Inspection
Biofiltration Swale
Results
Maintenance
Done
1539015.1 8/25/2011 13
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.
1539015.1 a252011 14
No. 5 — Catch Basins
.Maintenance
:Defect YUU55"
� Conditions "When Maintenance Is Needed�"i
Results Expected.When.
General
Trash &
Trash or debris which is located immediately
No Trash or debris
Debris
in front of the catch basin opening or is
located immediately in
blocking inlet ing capacity of the basin by
front of catch basin or on
more than 10%.
grate 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
Cracks in
unsound.
repaired to design
Basin Walls/
standards.
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 safety,
Basin replaced or
Misalignment
function, or design problem.
repaired to design
standards.
Vegetation
Vegetation growing across and blocking
No vegetation blocking
more than 10% of the basin opening.
opening to basin.
1539015.1 8252011 15
No. 5 — Catch Basins
Melntenence:_.S.
�Defect,�
Conditions When Melntenence Is Needed
Results'F�tpected Wtien.
General
,.
Trash or debris that is plugging more
Maintenance is
Debris
than 20% of the openings in the barrier
performed
Metal
Damaged/
Vegetation growing in inlet/outlet pipe joints
No vegetation or root
Missing
that is more than six inches tall and less than
growth present.
Bars.
six inches apart.
Bars are missing or entire barrier
Contamination
See "Detention Ponds" (No. 1).
No pollution present.
and Pollution
missing.
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.
Inlet/Outlet
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 112 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 inletling 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 �;
.Oomponents�- °_I
m
KDefecY :'t
>4 �r.;y�,
`Condltloh•When.Malntenance Is `�y�f�_�
Needed „ -� ` ��',;;: _.5,; -q
,Results Expe'oted When _'
MalntenanceIs�' ormed,
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.
1539015.1 8/252011 16
No. 7 — Energy Dissipaters
Maintenance
:Dete�i-f��c
-A6ni Nl�intenance i";
C6hdIti4nj,W I
Co ints
_Fe
Tp
�,Jhesluite-Eioi'
Needed
WirtieniAnce li�06ho rne&
. ... ...
External:
Rock Pad
Missing or
Only one layer of rock exists above
Rock pad replaced to design
Moved Rock
native soil in area five square feel or
standards.
larger, or any exposure of native soil.
Erosion
Soil erosion in or adjacent to rock pad.
Rock pad replaced to design
standards.
Dispersion Trench
Pipe
Accumulated sediment that exceeds
Pipe cleaned/flushed so that it
Plugged with
20% of the design depth.
matches design.
Sediment
Not
Visual evidence of water discharging at
Trench redesigned or rebuilt to
Discharging
concentrated points along trench
standards.
Water
(normal condition is a "sheet flow" of
Properly
water along trench). Intent is to prevent
erosion damage.
Perforations
Over 1/2 of perforations in pipe are
Perforated pipe cleaned or
Plugged.
plugged with debris and sediment.
replaced.
Water Flows
Maintenance person observes or
Facility rebuilt or redesigned to
Out Top of
receives credible report of water flowing
standards.
"Distributor"
out during any storm less than the
Catch Basin.
design storm or it's causing or appears
likely to cause damage.
Receiving
Receiving
Water in receiving area is causing has. tNo
danger of landslides.
Area Over-
lemsor
;andslide probrea
potential of causing Isms
'Saturated
I
internal:
Manhole/Chamber
Worn or
Structure dissipating flow deteriorates to
Structure replaced to design
Damaged
1/2 of original size or any concentrated
standards.
Post,
worn spot exceeding one square foot
Baffles, Side
that would make structure unsound.
of Chamber
Other
See "Catch Basins" (No. 5).
See "Catch Basins" (No. 5).
Defects
1539015.1 81252011 17
No. 8—Typical Biofiltration Shale
Maintenance l', -'
detect or"
�coniiltion,,when . ;. ; „ ;,
, Recommended Maintenance to Correc,v
'Component
Problem
Maintenance Is NeedeA :'',:, .;
. Problem
General
Sediment
Sediment depth exceeds 2
Remove sediment deposits on grass
Accumulation on
inches.
treatment area of the bio- Swale. When
Grass
finished, swale should be level from side
to side and drain freely toward outlet.
There should be no areas of standing
water once inflow has ceased.
Standing Water
When water stands in the
Any of the following may apply, remove
swale between storms and
sediment or trash blockages, improve
does not drain freely
grade from head to foot of Swale, remove
clogged check dams, add underdrains or
convert to a wet bicidtration swale.
Flow spreader
Flow spreaders uneven or
Level the spreader and clean so that
clogged so that flows are not
flows are spread evenly over entire swale
uniformly distributed through
width.
entire swale width.
Constant
When small quantities of
Add a low -flow ppea- gravel drain the length
Baseflow
water continually flow through
of the swale or by -pass the base flow
the Swale, even when it has
around the swale.
been dry for weeks, and an
eroded, muddy channel has
formed in the swale bottom.
Poor Vegetation
When grass is sparse or bare
Determine why grass growth is poor and
Coverage
or eroded patches occur in
correct that condition. Re -plant with plugs
more than 10% of the swale
of grass from the upper slope: plant in the
bottom.
swale bottom at 8 -inch intervals. Or re-
seed into loosened, fertile soil.
Vegetation
When the grass becomes
Mow vegetation or remove nuisance
excessively tall (greater than
vegetation so that flow not impeded.
peight
10- inches); when nuisance
Grass should be mowed to a of 3
weeds and other vegetation
to 4 inches. Remove grass clippings.
start to take over.
Excessive
Grass growth is poor
If possible, trim back over- hanging limbs
Shading
because sunlight does not
and remove brushy vegetation on
reach swale.
adjacent slopes.
Inlet/outlet
Inlet/outlet areas clogged
Remove material so that there is no
with sediment and /or debris.
clogging or blockage in the inlet and
outlet area.
Trash and
Trash and debris
Remove trash and debris from bioswale.
Debris
accumulated in the bio - swale.
Accumulation
Erosion /Scouring
Eroded or scoured swale
For ruts or bare areas less than 12 inches
bottom due to flow
wide, repair the damaged area by filling
channelization, or higher
with crushed gravel. If bare areas are
flows.
large, generally greater than 12 inches
wide, the Swale should be re- graded and
re- seeded. For smaller bare areas,
overseed when bare spots are evident, or
take plugs of grass from the upper slope
and plant in the swale bottom at 8 -inch
Intervals.
1539015.1 825/2011 18
No. 10 — Fitter Strips
Afi n an'co,,
�biifectlor-.'- V�-
66'alt]15A When
Ateicio . mmen* cli�d Mainiiimaiice It 0,dorrect
tCom ,Mal
.qpeqt ,
p
n nce is
Pro lam
b
General
Sediment
Sediment depth exceeds 2
Remove sediment deposits, re-level SO
Accumulation on
inches.
slope is even and flows pass evenly through
Grass
strip.
Vegetation
When the grass becomes
Mow grass, control nuisance vegetation,
excessively tall (greater
Such that flow not impeded. Grass should
than 10- Inches); when
be mowed to a height between 3-4 inches.
nuisance weeds and other
vegetation start to take
over.
Trash and Debris
Trash and debris
Remove trash and Debris from filter.
Accumulation
accumulated on the fitter
Strip.
Erosion /Scouring
Eroded or scoured areas
For ruts or bare areas less than 12 inches
due to flow channelization,
wide, repair the damaged area by filling with
or higher flows.
crushed gravel. The grass will creep in over
the rock in time. It bare areas are large,
generally greater than 12 Inches wide, the
filter strip should be re-graded and re-
seeded. For smaller bare areas, overseed
when bare spots are evident
Flow spreader
Flow spreaders uneven or
Level the spreader and clean so that flows
clogged so that flows are
are spread evenly over entire filter width.
not uniformly distributed
through entire filter width.
I
1539015.1 8/252011 19