HomeMy WebLinkAbout20050330000593 STORM EASEMENT 033005Return 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
FAC03-0038
Reference # (if applicable): N/A
Grantor/Borrower 1: Park 29 LLC
Grantor/Borrower 2:
Cascade Manufacturing & Distributing Inc.
Grantee/Assignee/Beneficiary:
City of Auburn
Legal Description/STR:
SW 1/4 01-21N-04E Cg01)
Assessor's Tax Parcel ID#:
012104-9012, 012104-9028, 012104-9048,
012104-9049
THIS EASEMENT AND AGREEMENT made and entered into this Z3 day of
W14 , 2005, by and between the City of Auburn, a municipal corporation
of King County, Washington, hereinafter referred to as "CITY" and Park 29 LLC Owners
of Lots A, B, & C of City of Auburn Short Plat 04-0002 recorded under recording number
20040826001399, and Cascade Manufacturing Distributing Inc. Owners of Lot D of City
of Auburn Short Plat 04-0002 recorded under recording number 20040826001399,
hereinafter referred to as "PROPERTY OWNERS".
WHEREAS, PROPERTY OWNERS have applied for certain permits with the
CITY for the construction of facilities for the Park 29 Development located at West Valley
Highway and 29`h Street NW, which create impervious surface; and
WHEREAS, the PROPERTY OWNERS will complete a storm system; and
EX01SE TAX NOT REQUIRED
S GU
King Co. Records Division ar C,4~\'~lrC\~
re
Storm Water Easement and Maintenance Agreement
Page 1. of 18
WHEREAS, the PROPERTY OWNERS 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
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 OWNERS hereby provide a non-exclusive easement to the City for
access, inspection, and maintenance for the purposes of this Agreement and the attached
Storm Water Pollution Prevention Plan, over, under and on that real estate described in
Exhibit "A" 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.
FAC03-0038, 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" 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.
11
Storm Water Easement and Maintenance Agreement
Page 2 of 18
Section 3, MAINTENANCE
The PROPERTY OWNERS agree 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 "B" and incorporated
herein by this reference. The PROPERTY OWNERS do hereby agree that the CITY may
enter onto the property of the PROPERTY OWNERS via the easement described above to
inspect and perform necessary maintenance if, after the PROPERTY OWNERS are given
notice to maintain, the PROPERTY OWNERS fail to maintain. Further, the PROPERTY
OWNERS agree the CITY may enter onto the property of PROPERTY OWNERS 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 OWNERS agree.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 OWNERS agree to pay
reasonable attorney's fees and all costs incurred by the CITY.
Section 4, ACKNOWLEDGMENT OF OTHER ENFORCEMENT ACTIONS
PROPERTY OWNERS acknowledge 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.
Storm Water Easement and Maintenance Agreement
Page 3 of 1.8
Z-~ IN WITNESS WREOF the rantor(s) has/have executed these presents this
day of /'~I 1 1r, 2005.
Grantor/Borrower 1: Park 29 LLC
STATE OF WASHINGTON)
) ss
COUNTY OF KING )
I certify I have know or have satisfactory evidence that `~(Lo4s Uff Ly-
is/are the person(s) who appeared before me, and said person(s) acknowledged that
he/she/they signed this instrument on oath stated that he/she/the was/ ere authorized to
execute the instrument and acknowledge as the wmn Y1
I" 4e C-
of D zt.
a limited liability company, to be the free and voluntary act of such party for the uses and
purposes mentioned in the instrument.
Dated ~10&vl 25 2&)5-
55 At d / TC/ i
Q~ 5S1 O N'' 9~ A'.
NOTARY m ;
N : PUBLIC
04, rp
i,~FO~ WASN`C~
Notary Public nn and for the State of Washington
Residing at ~V YYl
My appointment expires 2,Do
Storm Water Easement and Maintenance Agreement
Page 4 of 18
IN WITNESS WHEREOF the Grantor(s) has/have executed these presents this
day of k -,2005..
Grantor/Borrower 2: Cascade Manufacturing & Distributing Inc
STATE OF WASHINGTON)
ss
COUNTY OF KING )
I certify that I know or have satisfactory evidence that Dann 06"I~
and
are the persons who appeared before me, and said persons acknowledged that they signed
this instrument, on oath stated that the were authorized to execute the instrument and
acknowledged it as the e • i h -(V 1
and of U~ v1ti a v1
a corporation, to be the free and voluntary act of such parties for the udes and purposes
mentioned in this instrument.
Dated
%SISSA "rmat
-4 N -
U PoBi cv m' e Notary Public in and for the State of Washington
S, -F~ o : Residing at i~r(16v'V1
p':3~2p4$••" O• My appointment expires: q 13 / 21
Storm Water Easement and Maintenance Agreement
Page 5 of 18
EXECUTED as of the date first written above.
CITY OF AUBURN
-Ctm Carlaw, Storm Drainage Engineer - Date
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 \2 I 0 s
BAo
~~~•910N • 9~
10
o a0TAq y V ; f
.N~pUBL~G ::02 Notary Public ' for the St of Wash' gton
~~y~rF r ~1 g•Q~.• pA,.~' Residing at U'A' y-
4
it OK My appointment expires Lo- Z
CP/tlb
File: # 973
REF. H:\Development\Forms\Legal Documents\2005 (Rev. 11/04)
Storm Water Easement and Maintenance Agreement
Page 6 of 18
EXHIBIT "A"
Legal Description
LOTS A, B, C, AND D OF CITY OF AUBURN SHORT PLAT 04-0002 RECORDED
UNDER RECORDING NUMBER 20040826001399 IN KING COUNTY,
WASHINGTON.
Storm Water Easement and Maintenance Agreement
Page 7 of 18
EXHIBIT "B"
STORM WATER POLLUTION PREVENTION PLAN
For the
Park 29 Development
SEPA NO.
0003-93
FAC NO.
03-0038
GRA NO.
03-0038
Site Address:
The project is located in the SW '/a of Section 1, T21 N, R4E, W.M., and
includes addresses at 2820 & 2840 West Valley Hwy North as well as 1112
& 1124 29th Street NW. The tax parcel numbers are 012104-9012, -9028, -
9048 & -9049.
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 Park 29 Development located at the SE
corner of West Valley Highway and 29th Street NW. The site has an area
of approximately 3.78 acres and is currently graded & filled with developed
streets along the North & West sides. The subject site will be short platted
into (4) lots with an industrial building constructed on each lot.
The subject site is graded & filled with minimal vegetation and slope. A City
conveyance ditch that flows North along the East side of the site will be
piped.
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 detention/wet-pond located in the NE corner of the site. Here
the storm water will be released into the City storm system in 29th Street
NW and flow East in a 18" storm main.
Storm Water Easement and Maintenance Agreement
Page 8 of 18
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/wet-pond, 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. 1 - Detention Pond
No. 4 - Control Structure/Flow Restrictor
No. 5 - Catch Basins
No. 11 - Wet pond
No. 16 - Oil/Water Separator
Treatment BMP'S:
A two-celled detention/wet pond has been installed to treat runoff for
conventional pollutants. The wet pond 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.
Aqua-Swirl treatment manhole has also been added immediately East of
the pond to treat the paved areas East of Buildings C & D.
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 of Auburn Storm Drainage Utility
section.
Storm Water Easement and Maintenance Agreement
Page 9 of 18
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/wet pond must
be properly maintained. Be careful to avoid introducing landscape fertilizer
to receiving waters or groundwater. If wet 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.
The Aqua-Swirl shall be maintained per the manufacturer's direction as
contained within the owner's manual.
Person of Responsibility:
Park 29 LLC
3402 West Valley Hwy N. #101
Auburn, WA 98001
253-939-1800
Design Engineer:
POE Engineering, Inc.
13148 th Street NE Suite 102
Auburn, WA 98002
253-833-4052
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.
Storm Water Easement and Maintenance Agreement
Page 10 of 19
INSPECTION/MAINTENANCE CHECKLIST
STRUCTURE
DATE OF INSPECTION/MAINTENANCE
Results/
Maintenance
Date
All Catch Basins
Inspection
Results
Maintenance
Done
Storm Water
Inspection
Detention/Wet and
Results
Maintenance
Done
Inspection
Conveyance Pipes
Results
Maintenance
Done
Flow Control
Inspection
Structure
Results
Maintenance
Done
Oil/Water Separator
Inspection
Results.
(Aqua-Swirl)
Maintenance
Done
Storm Water Easement and Maintenance Agreement
Page 11 of 18
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
Defeeb
Conditions When Maintenance Is
Results Exp f d
Component
Needed r
' Mamte
r~nr s P oil,
~
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
State or local eradication policies
(Apply requirements of adopted IPM
required.
policies for the use of herbicides).
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).
Storm Water Easement and Maintenance Agreement
Page 12 of 18
No. 1 - Detention Ponds
Maintenance Defect
bComponent
Rodent Holes
Beaver Dams
Insects
Tree Growth
and Hazard
Trees
Side Slopes
of Pond
Storage Area
Erosion
Sediment
Liner (If
Applicable)
Conditions When Maintenance Is
Needed
Any evid~ence of rodent holes if
facility is acting as a dam or berm, or
any evidence of water piping through
dam or berm via rodent holes.
Dam results in change or function of
the facility.
When insects such as wasps and
hornets interfere with maintenance
activities.
Tree growth does not allow
maintenance access or interferes
with maintenance activity (i.e., slope
mowing, silt removal, vactoring, or
equipment movements). If trees are
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.)
Eroded damage over 2 inches deep
where cause of damage is still
present or where there is potential for
continued erosion.
Any erosion observed on a
compacted berm embankment.
Results Expected When
Maintenance Is Performed
Rodents destroyed and dam or berm
repaired. (Coordinate with local health
department; coordinate with Ecology
Dam Safety Office if pond exceeds 10
acre-feet.)
Facility is returned to design function.
(Coordinate trapping of beavers and
removal of dams with appropriate
permitting agencies.)
Insects destroyed or removed from
site.
Apply insecticides in compliance with
adopted IPM policies.
Trees do not hinder maintenance
activities. Harvested trees should be
recycled into mulch or other beneficial
uses (e.g., alders for firewood).
Remove hazard trees.
Slopes should be stabilized using
appropriate erosion control measure(s);
e.g., rock reinforcement, planting of
grass, compaction.
If erosion is occurring on compacted
berms a licensed civil engineer should
be consulted to resolve source of
erosion.
Accumulated sediment that exceeds
10% of the designed pond depth
unless otherwise specified or affects
inletting or outletting condition of the
facility.
Liner is visible and has more than
three 1/4-inch holes in it.
Sediment cleaned out to designed
pond shape and. depth; pond reseeded
if necessary to control erosion.
Liner repaired or replaced. Liner is
fully covered.
Storm Water Easement and Maintenance Agreement
Page 13 of 18
No.1 - Detention Ponds
Maintenancem DefecN'. Conditions When Maintenance Is Results Ex c ed hLil@n
,pe
Component Needed Maintenance f Performed
Pond Berms
(Dikes)
Settlements
Any part of berm that has settled 4
inches lower than the design
elevation.
Dike is built back to the design
elevation.
Emergency
Overflow/
Spillway and
Berms over 4
feet in height.
Piping
Tree Growth
Piping
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.
Discernable water flow through pond
berm. Ongoing erosion with potential
for erosion to continue.
Piping eliminated. Erosion potential
resolved.
(Recommend a Goethechnical
engineer be called in to inspect and
evaluate condition and recommend
repair of condition.
Tree growth on emergency spillways
creates blockage problems and may
cause failure of the berm due to
uncontrolled overtopping.
Tree growth on berms over 4 feet in
height may lead to piping through the
berm which could lead to failure of
the berm.
Trees should be removed. If root
system is small (base less than 4
inches) the root system may be left in
place. Otherwise the roots should be
removed and the berm restored. A
licensed civil engineer should be
consulted for proper berm/spillway
restoration.
Discernable water flow through pond
berm. Ongoing erosion with
potential for erosion to continue.
(Recommend a Goethechnical
engineer be called in to inspect and
evaluate condition and recommend
repair of condition.
Piping eliminated. Erosion potential
resolved.
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 I See "Side Slopes of Pond."
Storm Water Easement and Maintenance Agreement
Page 14 of 18
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
Plate is in place and
to 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).
Storm Water Easement and Maintenance Agreement
Page 15 of 18
No. 5 - Catch Basins
Maintenance,
Defect
Conditions When Maintenance is Needed
Results ect
Com orient'
P
_
Marnte,na oe
perf,e
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 inletting 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.
Storm Water Easement and Maintenance Agreement
Page 16 of 18
No. 5 - Catch Basins
Maintenance
Defect
Conditions When Maintenance`is Needed
Results Expected When
'Component
Maintenance is
perfoT-med
Vegetation growing in inlet/outlet pipe joints
No vegetation or root
that is more than six inches tall and less than
growth present.
six inches apart.
Contamination
See "Detention Ponds" (No. 1).
No pollution present.
and Pollution
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.
Storm Water Easement and Maintenance Agreement
Page 17 of 18
No. 11 - Wetponds
Maintenance :
Defect
Condition When Maintenance
Results Expect dtN aintie a
Component
is Needed
is Performed,, .
General
Water level
First cell is empty, doesn't hold
Line the first cell to maintain at least 4w
water.
feet 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
outlet piping.
material.
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.
Storm Water Easement and Maintenance Agreement
Page 18 of 18
No. 16 - Baffle OiVWater Separators (API Type)
Maintenance
Defect
Condition When Maintenance is
Results;,Expected When
Component
Needed
Maintenance is Performed
General
Monitoring .
Inspection of discharge water for -
Eff luent discharge from vault should
obvious signs of poor water
be clear with out thick visible sheen.
quality.
Sediment
Sediment depth in bottom of vault
No sediment deposits on vault
Accumulation
exceeds 6-inches in depth.
bottom that would impede flow
through the vault and reduce
separation efficiency.
Trash and Debris
Trash and debris accumulation in
Trash and debris removed from
Accumulation
vault or pipe inlet/outlet, floatables
vault and inlet/outlet piping.
and non-floatables.
Oil Accumulation
Oil accumulations that exceed 1
Extract oil from vault by vactoring.
inch, at the surface of. the water.
Disposal in accordance with state
and local rules and regulations.
Damaged Pipes
Inlet or outlet piping damaged or
Pipe repaired or replaced.
broken and in need of repair.
Access Cover
Cover cannot be opened,
Cover repaired to proper working
Damaged/Not
corrosion/deformation of cover.
specifications or replaced.
Working
Vault Structure
Vault replaced or repairs made so
Damage - Includes
that vault meets design
Cracks in Walls
See "Catch Basins" (No. 5).
specifications and is structurally
Bottom, Damage to
sound.
Frame and/or Top
Slab
Cracks wider than 1/2-inch at the
Vault repaired so that no cracks
joint of any inlet/outlet pipe or
exist wider than 1/4-inch at the joint
evidence of soil particles entering
of the inlet/outlet pipe.
through the cracks.
Baffles -
Baffles-corroding, cracking,
Baffles repaired or replaced to
warping and/or showing signs of
specifications.
failure as determined by
maintenance/inspection person.
Access Ladder
Ladder is corroded or
Ladder replaced or repaired and
Damaged
deteriorated, not functioning
meets specifications, and is safe to
properly, not securely attached to
use as determined by inspection
structure wall, missing rungs,
personnel.
cracks, and misaligned.
Storm Water Easement and Maintenance Agreement
Page 19 of 18