SW6231105_O&M Agreement/Plan_20241018

Operation & Maintenance Agreement
Project Name: Hilton Heights 72 Unit Relocation
Project Location: Lumberton, NC
Cover Page
Maintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location.
Any deficient SCM 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 SCM(s).
The SCM(s) on this project include (check all that apply& corres onding O&M sheets will be added automatically):
Infiltration Basin Quantity: Location(s):
Infiltration Trench Quantity: Location(s):
Bioretention Cell Quantity: Location(s):
Wet Pond Quantity: Location(s):
Stormwater Wetland Quantity: 1 Location(s): Caton Rd, Lumberton, NC
Permeable Pavement Quantity: Location(s):
Sand Filter Quantity: Location(s):
Rainwater Harvesting Quantity: Location(s):
Green Roof Quantity: Location(s):
Level Spreader- Filter Strip Quantity: Location(s):
Proprietary System Quantity: Location(s):
Treatment Swale Quantity: Location(s):
Dry Pond Quantity: Location(s):
Disconnected Impervious Surface Present: No Location(s):
User Defined SCM Present: No Location(s):
Low Density Present: Yes Type: Dispersed flow only
acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for
each SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to
the system or responsible party.
Responsible Party: Lumberton Housing Authority
Title & Organization: Adrian Lowery
Street address: 407 N Sycamore St.
City, state, zip: Lumberton, NC, 28358
Phone number(s): 910-671-8200
Email:
Signature: 4& I Date: 0 S
I, Y1'3 a Notary Public for the State
County of do hereby certify that lAri
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personally appeared before me this t` day of �1�� ✓ ?Q and
the � s ddMK' n/anreacknowledge the due execution of ygreemeQt .
Witness my hand and official seal,
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Seal My commission expires
STORM-EZ 10/3/2024
Version 1.5 O&M Agreement Page 1 of 1

Stormwater Wetland Maintenance Requirements
Important operation and maintenance procedures:
_ Immediately following construction of the stormwater wetland, conduct bi-weekly inspections and water
wetland plants bi-weekly until vegetation becomes established (commonly six weeks).
Before and immediately after plant installation, monitor water level and adjust to ensure that plants are
not completely inundated.
- No portion of the stormwater wetland will be fertilized after the initial fertilization that is required to
establish the wetland plants.
- Stable groundcover will be maintained in the drainage area to reduce the sediment load to the wetland.
_ At least once annually, a dam safety expert will inspect the embankment. Any problems that are found
will be repaired immediately.
After the wetland is established, it shall 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 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.
SCM element: Potential problem: How I will remediate the problem:
The entire wetland Trash/debris is present. Remove the trash/debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground
wetland erosive gullies have cover and water until it is established. Provide lime and a one-
formed. time fertilizer application.
The inlet pipe is clogged (if Unclog the pipe. Dispose of the sediment off-site.
applicable).
The inlet pipe is cracked or
otherwise damaged (if Repair or replace the pipe.
The inlet device applicable).
Erosion is occurring in the Regrade the swale if necessary and provide erosion control
swale (if applicable). devices such as reinforced turf matting or riprap to avoid future
problems with erosion.
Sediment has accumulated
in the forebay to a depth of Search for the source of the sediment and remedy the problem if
less than 15" or that inhibits possible. Remove the sediment and dispose of it in a location
the forebay from where it will not cause impacts to streams or the SCM.
The forebay functioning well.
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 pesticide is used, wipe
it on the plants rather than spraying.

Stormwater Wetland Maintenance Requirements (Continued)
SCM element: Potential problem: How I will remediate the problem:
A tree has started to grow If the tree is <6" in diameter, remove the tree. If the tree is >6" in
on the embankment. diameter, consult a dam safety specialist to remove the tree.
An annual inspection by an
Embankment appropriate professional Make all needed repairs immediately.
shows that the
embankment needs repair.
Evidence of muskrat or Consult a professional to remove muskrats or beavers and repair
beaver activity is present. any holes or erosion.
Algal growth covers over
30% of the deep pool and Consult a professional to remove and control the algal growth.
shallow water areas.
Cattails, phragmites or
other invasive plants cover Remove the plants by hand or by wiping them with pesticide (do
30% of the deep pool and not spray) - consult a professional.
shallow water areas.
The temporary inundation
zone remains flooded more Unclog the outlet device immediately.
than 5 days after a storm
event.
Deep pool, shallow water Determine the source of the problem: soils, hydrology, disease,
and shallow land areas Plants are dead, diseased etc. Remedy the problem and replace plants. Provide a one-
or dying. time fertilizer application to establish the ground cover if
necessary.
Best professional practices
show that pruning is Prune according to best professional practices.
needed to maintain optimal
plant health.
Sediment has accumulated Search for the source of the sediment and remedy the problem if
and reduced the depth to possible. Remove the sediment and dispose of it in a location
75/° of the original design where it will not cause impacts to streams or the SCM.
depth of the deep pools.
Sediment has accumulated Search for the source of the sediment and remedy the problem if
Micro pool and reduced the depth to
p 75% of the original design possible. Remove the sediment and dispose of it in a location
depth. where it will not cause impacts to streams or the SCM.
Clogging has occurred. Clean out the outlet device. Dispose of the sediment in a location
The outlet device
where it will not cause impacts to streams or the SCM.
The outlet device is Repair or replace the outlet device.
damaged

Stormwater Wetland Maintenance Requirements (Continued)
SCM element: Potential problem: How I will remediate the problem:
Erosion or other signs of
damage have occurred at Repair the damage and improve the flow dissipation structure.
the outlet.
The receiving water Discharges from the
wetland are causing erosion or sedimentation in Contact the local NCDEQ Regional Office.
the receiving water.