SW3140402_O&M Agreement Form_20140724

Permit
(to be provided by DWO
Drainage Area Number:
Sand Filter Operation and Maintenance Agreement
s
0
I will keep a maintenance record on this BMP. This maintenance record will be kept in aQog in a �O O
known set location. Any deficient BMP elements noted in the inspection will be correc d,repa,ired-off
replaced immediately. These deficiencies can affect the integrity of structures, safety of hp-1public arniand ,*-
the removal efficiency of the BMP. �.c
Important maintenance procedures: 9 << �s �7 �A
— The drainage area will be carefully managed to reduce the sediment load to the sand filter. F
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth Sods
III -
six inches. N,
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly and within 24 hours after every storm event greater than
1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in
a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired
immediately.
BMP element:
Potential problem:
How I will remediate the problem:
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
gully, and then plant a ground cover and
water until it is established. Provide lime
and a one-time fertilizer application.
Vegetation is too short or too long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or dispose of it
in a location where it will not cause
impacts to streams or the BMP.
Erosion has occurred.
Provide additional erosion protection such
as reinforced turf matting or riprap if
needed to prevent future erosion
problems.
Weeds are present.
Remove the weeds, preferably by hand. If
a pesticide is used, wipe it on the plants
rather than spraying.
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P� t of I

BMP element
Potentialproblem:
How I will remediate theproblem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
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Permit
(m be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior
to any changes to the system or responsible party.
Project name: Wyndmoor Subdivision
BMP drainage area number: 1
Print name: i)gr44/ K/ _ KJOACU=e/ LZ KV14,IA 6ol-42- P1ye / ,,ee
Title ►' 444vC.Pl- l
M
uate
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N( 2-7 60 1
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
I, Mtc,i,.gL A. 16C),1091 , a Notary Public for the State of
went Co"LAyP. , County of "r, t e•P�ue.L , do hereby certify that
► PeN,*P 0 Ootbn M- personally appeared before me this Z3 day of
ApLit— , 2ot4 and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,
DEL J. KF�'•,,
tip,
2Q
My commission expires Jv+Ai L'S, 201g
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