SW6191006_O&M Agreement_20200706

The BMP(s) on this project include (check all that apply & corresponding O&M tables will be added automatically):
Quantity:Location(s):
Quantity:Location(s):
Quantity:Location(s):
Quantity:Location(s):
Quantity: 2 Location(s):
Quantity:Location(s):
Quantity:Location(s):
Quantity:Location(s):
Quantity:1 Location(s):
Quantity:Location(s):
Quantity:Location(s):
Quantity:Location(s):
Quantity: 0 Location(s):
Present: No Location(s):
Present: No Location(s):
I,, a Notary Public for the State of
County of , do hearby certify that
personally appeared before me this day of and
acknowledge the due execution of the Operations and Maintenance Agreement .
Witness my hand and official seal, _____________________________________________.
Seal
Project Name:
Project Location:
Fort Bragg SOF
Fort Bragg (236 Interceptor Road)
Operation & Maintenance Agreement
Date:
NW of STT building and SW of dumpster e
Site entranceProprietary System
Rainwater Harvesting
Sand Filter
* Responsible Party:
Title & Organization:
Stormwater Wetland
Wet Detention Basin
Disconnected Impervious Area
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed
for each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any
changes to the system or responsible party.
Phone number(s):
Email:
Signature:
Street address:
City, state, zip:
Grassed Swale
Infiltration Basin
Infiltration Trench
Green Roof
Permeable Pavement
Level Spreader/VFS
My commission expires
User Defined BMP
Maintenance records shall be kept on the following BMP(s). This maintenance record shall be kept in a log in a known set
location. Any deficient BMP elements noted in the inspection will be corrected, repaired, or replaced immediately. These
deficiencies can affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the BMP(s).
Bioretention Cell
Dry Detention Basin
Cover Page
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Important maintenance procedures:
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Infiltration System Maintenance Requirements
The drainage area will be carefully managed to reduce The sediment load to The infiltration basin.
Immediately after the infiltration basin is established, the vegetation will be watered twice weekly if needed until
the plants become established (commonly six weeks).
The embankment Shrubs or trees have started
to grow on the embankment.
Remove shrubs or trees immediately.
An annual inspection by an
appropriate professional
shows that the embankment
needs repair.
Make all needed repairs.
The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off-site.
The outlet device is damaged Repair or replace the outlet device.
The main treatment area A visible layer of sediment
has accumulated.
Search for the source of the sediment and remedy the problem if
possible. Remove the sediment and dispose of it in a location where it
will not cause impacts to streams or the BMP. Replace any media
that was removed in the process. Revegetate disturbed areas
immediately.
Water is standing more than
5 days after a storm event.
Replace the top few inches of filter media and see if this corrects the
standing water problem. If so, revegetate immediately. If not, consult
an appropriate professional for a more extensive repair.
Weeds and noxious plants
are growing in the main
treatment area.
Remove the plants by hand or by wiping them with pesticide (do not
spray).
The forebay Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Search for the source of the sediment and remedy the problem if
possible. Remove the sediment and dispose of it in a location where it
will not cause impacts to streams or the BMP.
Erosion has occurred or
riprap is displaced.
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 pesticides are used, wipe
them on the plants rather than spraying.
The pipe is cracked or
otherwise damaged (if
applicable).
Replace the pipe.
The entire BMP Trash/debris is present. Remove the trash/debris.
The inlet device: pipe or
swale
The pipe is clogged (if
applicable).
Unclog the pipe. Dispose of the sediment off-site.
Erosion is occurring in the
swale (if applicable).
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to remove the gully, and then plant a
ground cover and water until it is established. Provide lime and a one-
time fertilizer application.
No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the
vegetation.
BMP element: Potential problem: How to remediate the problem:
Regrade the swale if necessary to smooth it over and provide erosion
control devices such as reinforced turf matting or riprap to avoid future
problems with erosion.
The vegetation in and around the basin will be maintained at a height of approximately six inches.
After the infiltration basin is established, it shall be inspected once a quarter 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 shall be kept in a known
set location and shall be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately.
The perimeter of the
infiltration basin
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The receiving water Erosion or other signs of
damage have occurred at the
outlet.
Contact the local NC Department of Environment and Natural
Resources Regional Office.
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0
Proprietary System Maintenance Requirements
How many devices are
Contech StormFilters?
ATTACH MANUFACTURER'S MAINTENANCE MANUAL FOR ALL PROPRIETARY DEVICES
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