HomeMy WebLinkAbout20051006000642 STORM EASEMENT 100605. 3, 13. 2--
Return Address:
City of Auburn
City Clerk
25 West Main
Auburn, WA 98001
20051006000642
PACIFIC NW TIT EAS 48.00
PAGE001 OF 017
10/06/2008 11:38
KING COUNTY, WA
Above this line reserved for recording information.
STORM WATER EASEMENT AND MAINTENANCE AGREEMENT
PNw"t- Wq--6,~-5 `z), FAC03-0006 L
Reference i# (if applicable): N/A
Grantor/Borrower: Thomas S Durkin/Adele C Durkin/MK Holdings, LLC
Grantee/Assignee/Beneficiary: City of Auburn
Legal Description/STR: SW 114 13-21N-04E (907.)
Assessor's Tax Parcel 1134: 132104-9006, 132104-9007
THIS EASEMENT AND AGREEMENT made and entered into this 25th day of
August, 2005, by and between the City of Auburn, a municipal corporation of King
County, Washington, hereinafter referred to as "CITY" and Thomas S Durkin,
Adele C Durkin & MK Holdings, LLC hereinafter referred to as "PROPERTY OWNER".
WHEREAS, PROPERTY OWNER has applied for certain permits with the CITY
for the construction of facilities for Main Street Business Park located at
902 West Main Street, 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 bath parties as to the existence of this ease ~e~r~t and agreement;
and Said documengs) were~lett for
record by Pacific Northwest Title as
81W6fi1R19~~tdn ent}. Y ~ C rent !ten
Storm Water Easement and Maintenance Agreement e *wd an to PMW MOM" Or
Page 1 of 17 ar1ls be do"spontw.
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 an easement over, under 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. FAC03-0006, 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 of benefit to the City storm 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 "B" 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
he/she/they/it shall 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 all costs incurred by the CITY.
Storm Water Easement and Maintenance Agreement
Page 2 of 17
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.
Owner Date
aw~, -0"
Owner Date
STATE OF WASHINGTON)
)ss.
County of King }
I certify that I know or have satisfactory evidence that'-/ 2t, .,%V ,
and .OQ& 4 C..~..~,
is/are the person(s) who appeared before me, and said individual(s) acknowledged that
he/she/they signed this instrument and acknowledged it to be his/her/their free and
voluntary act for the uses and purposes mentioned in this instrument.
Dated ~S r o7D~ 5
Notary Public in and for the State of Washington
¢.OTARk residing at
. U
My appointment expires 4z5p-
(P 0
4-9-011 C
~WAS
f ~tfOF
Storm Water Easement and Maintenance Agreement
Page 3 of 17
Owner ate
STATE OF WASHINGTON)
) ss
COUNTY OF KING )
I certify I have know or have satisfactory evidence that M ( Vkqa l,'"" I a,,
is/are the person(s) who appeared before me, and said person(s) acknowledged that
he/she/they signed this instrument on oath stated at he/she/they was/were authorized to
execute the instrument and acknowledge as the Sr 6nlf D U )'r10,rq .
7/~ 1 j,~ll S~'L of WfFS W4 fVA). (!10
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
`h~
1~'r~:i3l S *S
Notary Publi and to of ashington`'
Residing at C~0V NMP~Ii k - ff My appointment expires
Storm Water Fasement and Maintenance Agreement
Page 4 of 17
EXECUTED as of the date first written above.
CITY OF AUBURN
form 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 this 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 l 1c? Los
0~x L. 84
r :U 9y m; ~ a
r
r US : '°~/BLtG Notary Publi nand for the S,tr e of Washington
':,ny r 2 c residing at is n C-0 ( l-IN
•''~'~0= My appointment expires I t ~19 /U ~
W W/tlb
File: #926
REF. H:\Development\Forms\Legal Documents\2005
Storm Water Easement and Maintenance Agreement
Page 5 of 17
EXHIBIT "A"
NEW LEGAL. DESCRIPTIONS
LOT A
THE WEST HALF OF THE EAST HALF OF THE EAST HALF OF THE NORTHEAST
QUARTER OF THE SOUTHWEST QUARTER AND THE EAST HALF OF THE WEST HALF
OF THE EAST HALF OF THE NORTHEAST QUARTER OF THE SOUTHWEST QUARTER
OF SECTION 13, TOWNSHIP 21 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY,
WASHINGTON
LESS COUNTY ROAD
AND LESS THE FOLLOWING DESCRIBED PROPERTY:
BEGINNING AT THE NORTHEAST CORNER OF LOT 2, OF CITY OF AUBURN LOT LINE
ADJUSTMENT NO. LLA 17-86, RECORDED UNDER RECORDING NO. 8905241018, IN
KING COUNTY, WASHINGTON;
THENCE ALONG THE NORTH LINE OF SAID LOT 2, NORTH 87° 55'47" WEST FOR
229.16 FEET;
THENCE SOUTH 00 20'03" EAST FOR 319.57 FEET;
THENCE SOUTH 200 49'50" EAST FOR 126.48 FEET;
THENCE NORTH 89" 39'58" EAST FOR 186.03 FEET TO THE EAST LINE OF SAID LOT 2;
THENCE ALONG SAID EAST LINE, NORTH 0° 30'58" WEST FOR 428.44 FEET TO THE
POINT OF BEGINNING.
LOT B
THAT PORTION OF THE WEST HALF OF THE EAST HALF OF THE EAST HALF OF THE
NORTHEAST QUARTER OF THE SOUTHWEST QUARTER AND THE EAST HALF OF THE
WEST HALF OF THE EAST HALF OF THE NORTHEAST QUARTER OF THE SOUTHWEST
QUARTER OF SECTION 13, TOWNSHIP 21 NORTH, RANGE 4 EAST, W.M., IN KING
COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS:
BEGINNING AT THE NORTHEAST CORNER OF LOT 2, OF CITY OF AUBURN LOT LINE
ADJUSTMENT NO. LLA 17-86, RECORDED UNDER RECORDING NO. 8905241018, IN
KING COUNTY, WASHINGTON;
THENCE ALONG THE NORTH LINE: OF SAID LOT 2, NORTH 87° 55' 47" WEST FOR
229.16 FEET;
THENCE SOUTH 0° 20'03" EAST FOR 319.57 FEET;
THENCE SOUTH 20° 49'50" EAST FOR 126.48 FEET;
THENCE NORTH 89° 39'58" EAST FOR 186.03 FEET TO THE EAST LINE OF SAID LOT 2;
THENCE ALONG SAID EAST LINE, NORTH 0° 30'58" WEST FOR 428.44 FEET TO THE
POINT OF BEGINNING.
9/17/2004
Storm Water Easement and Maintenance Agreement
Page 6 of 17
STORMWATER POLLUTION PREVENTION PLAN
for
Main Street Business Park
SEPA # 03-0006
FAC # 03-0006
GRA # 03-0006
Site Address:
The project is located in Section 13, Township 21 North, Range 4 East,
W.M. at 902 West Main Street in Auburn, WA. The Tax Parcel Number
132104-9006, 9007
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 Main Street Business Park. The site has an
area of approximately 9.4 acres. The proposed project is going to be an
improvement of the existing building site and grading for two future
buildings. The existing building does not have a storm drainage system.
We are proposing to "redevelop" the entire site and provide one storm
water system for both the existing and future development and use one
detention/wet pond for the entire site.
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 northwest corner of the site.
Here the storm water will be released into a reconstructed 18" public storm
main located in West Main Street.
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.
Storm Water Easement and Maintenance Agreement
Page 7 of 17
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
No. 1 - Detention Pond
No. 4 - Control Structure/Flow Restrictor
No. 5 - Catch Basins
No. 11 - Wet Pond
(Department of Ecology Storm Water Manual, August 2001).
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.
The City of Auburn Utilities Section is to review and approve any changes
to this stormwater 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 Utilities Sections.
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 seasonal 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.
Storm Water Easement and Maintenance Agreement
Page 8 of 17
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 inches 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.
Persons of Responsibility:
Thomas S Durkin
P4 Box 655
Kirkland, WA 98083-0655
206 650-8202
Design Engineer:
Poe Engineering, Inc
1314 8t Street NE #102
Auburn, WA 98002
253 833-4052
Adele C Durkin MK Moldings, LLC
PO Box 655 904 W Main St
Kirkland WA 98083-0655 Auburn WA 98001
Plan and/or Information Updates:
The City of Auburn Utilities Section is to review and approve any changes
to this stormwater 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 Utilities'Sections.
(Changes to ownership shall be reported to the City of Auburn's Utilities
Section.)
Storm Water Easement and Maintenance Agreement
Page 9of17
INSPECTION/MAINTENANCE CHECKLIST
STRUCTURE
DATE tOF INS
P CTI4N M I
ENA E
Results/
Maintenance
Date
Inspection
All Catch Basins
Results
Maintenance
Done
Storm Detention/
Inspection
Wet Pond
Results
Maintenance
Done
Inspection
Conveyance Pipes
Results
Maintenance
Done
Flow Control
Inspection
Structure
Results
Maintenance
Done
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.
Storm Water Easement and Maintenance Agreement
Page 10 of 17
No.1 - Detention Ponds
Maint a ebl
,Defect
Condition's When Maintenance.ls
Results E`
_L,
Conion nt
Needed.
,,`Maintenanceils~PeA& od
Cy!. e6.MYfi9'M`:.w.K
•1~
.~h'
..e'L N.. ,:I[FX
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
and Pollution
contaminants or other pollutants
present.
(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.)
Storm Water Easement and Maintenance Agreement
Page 11 of 17
No. 1-- Detention Ponds
ti~~. ~~rkw`r '
Ma~ntenance'~1
~o s
: Defec4.
Component
Beaver Dams
Insects
Tree Growth
and Hazard
Trees
Side Slopes Erosion
of Pond
Storage Area I Sediment
Liner (If
Applicable)
~r
Needed
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.
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 114-inch holes in it.
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.
Sediment cleaned out to designed
pond shape and depth; pond reseeded
if necessary to control erosion.
Liner repaired or replaced. Liner is fully
covered.
!s I Results
,.IUla~nt'pn'
Storm Water Easement and Maintenance Agreement
Page 12 of 17
No. 1 - Detention Ponds
Maintenance
Defect
Conditions<When Maintenance Is
Results Expected When
Component.
Needed
Mairtenance-ls Performed
Pond Berms
Settlements
Any part of berm which 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
OverflowSpill
creates blockage problems and may
system is small (base less than 4
way 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.
removed and the berm restored. A
Tree growth on berms over 4 feet in
licensed civil engineer should be
height may lead to piping through the
consulted for proper berm/spillway
berm which could lead to failure of
restoration.
the berm.
Piping
Discernable water flow through pond
Piping eliminated. Erosion potential
berm. Ongoing erosion with
resolved.
potential 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,
(Rip rap on inside slopes need not
be replaced.)
Erosion
See "Side Slopes of Pond"
Storm Water Easement and Maintenance Agreement
Page 13 of 17
No. 4 - Control Structure/Flow Restrictor
Va.frit'enance
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 water tight;
structure repaired or
replaced and works
as designed.
Any holes--other than designed holes--in
Structure has no
the 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.
]
Gate cannot be moved up and down by one
Gate moves up and
maintenance person.
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 14 of 17
No. 5 - Catch Basins
Maintenance ' .
`
f1'efect
Conditions When-Maintenance is'~Needed
Results Expected When
Component,
Maintenance is
pe'rforme'd
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
separation of more than 314 inch of the frame
the riser rings or top slab
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 15 of 17
No. 5 - Catch Basins
Maintenance
Defect
C'onditrons When Mairifenance is~,Needed
Results. Expected When
Component
Maintenance' is
' ~ ~ ~
perfocmed
Vegetation growing in inletloutlet 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 112 inch of thread.
Cover Difficult
One maintenance person cannot remove lid
Cover can be removed by
to Remove
after applying normal lifting pressure.
one maintenance person.
(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 16 of 17
No. 11- Wetponds
wMairite'nance
C?efect:
Coion+When-Maintenance,;
ResuM;;Expecte&Whon, Maintenance
Comporerit
r
r
is!;Neede'd,
is<Perfg
nr`ed
a~.y~~ uw~
i
a
General
Water level
First cell is empty, doesn't hold
Line the first cell to maintain at least 4
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) which
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
Dikelberm 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 17 of 17