SW6080602_O&M Agreement/Plan_20240730

Operation & Maintenance Agreement
Project Name: Project Gain' rr
Project Location: 2120 NC 71, Maxton, NC 28364
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&corresponding 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: a Location(s): East side of building tea. 44 e.tf'K
Stormwater Wetland Quantity: Location(s):
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: No Type:
I 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: Mark Rogers
Title&Organization: Associate VP Site Operations,Campbell Soup Supply Company LLI
Street address: One Campbell Place
City,state,zip: Camden,NJ 08103
Phone number(s): 877-858-3855
Email: [e-mail]
Signature: )) ,, / Date: 5--ae—p�,�-
I, tit- �Yl f. . • f(,U ,a Notary Public for the State off, n t 6County of /tZ iS 'S�' ,do hereby certify that /Vt• 1( tc 5
personally appeared before me this c2 day of /✓1 and
acknowledge the due execution of the 0 ations and Maintenance AgCement. ,
Witness my hand and official seal, 444.k_
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'�f•• 30% ��%.,�.,i My commission expires , /� 5
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STORM-EZ 5/23/2024
Version 1.5 O&M Agreement Page 1 of 1

Wet Pond Maintenance Requirements
Important operation and maintenance procedures:
Immediately after the wet detention basin is established, the plants on the vegetated shelf
- and perimeter of the basin should be watered twice weekly if needed, until the plants become
established (commonly six weeks).
No portion of the wet pond should be fertilized of ter the initial fertilization that is required to
establish the plants on the vegetated shelf.
Stable groundcover will be maintained in the drainage area to reduce the sediment load to the
wet pond.
If the pond must be drained for an emergency or to perform maintenance, the flushing of
- sediment through the emergency drain will be minimized as much as possible.
At least once annually, a dam safety expert will inspect the embankment. Any problems that
are found will be repaired immediately.
The measuring device used to determine the sediment elevation shall be such that it will give
an accurate depth reading and not readily penetrate into accumulated sediments.
After the wet pond is established, it 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
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 to remediate the problem:
The entire wet pond Trash/debris is present. Remove the trash/debris.
Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant
The perimeter of the erosive gullies have ground cover and water until it is established. Provide lime
wet pond formed. and a one-time fertilizer application.
The inlet pipe is clogged
(if applicable). Unclog the pipe. Dispose of the sediment off-site.
The inlet pipe is cracked
or otherwise damaged (if Repair or replace the pipe.
The inlet device applicable).
Regrade the swale if necessary and provide erosion
Erosion is occurring in control devices such as reinforced turf matting or riprap to
the swale (if applicable). avoid future problems with erosion.
Sediment has Search for the source of the sediment and remedy the
accumulated to a depth problem if possible. Remove the sediment and dispose of
greater than the original it in a location where it will not cause impacts to streams or
design depth for the SCM.
sediment storage.
The forebay - Provide additional erosion protection such as reinforced
Erosion has occurred. turf matting or riprap if needed to prevent future erosion
problems.
Remove the weeds, preferably by hand. If pesticide is
Weeds are present. used, wipe it on the plants rather than spraying.

Wet Pond Maintenance Requirements (Continued)
SCM element: Potential problem: How to remediate the problem:
Sediment has Search for the source of the sediment and remedy the
accumulated to a depth problem if possible. Remove the sediment and dispose of
greater than the original it in a location where it will not cause impacts to streams or
design sediment storage the SCM.
depth.
The main treatment Algal growth covers over Consult a professional to remove and control the algal
area
50% of the area. growth.
Cattails, phragmites or
other invasive plants Remove the plants by wiping them with pesticide (do not
cover 50% of the basin spray).
surf ace.
Best professional
practices show that
pruning is needed to Prune according to best professional practices.
maintain optimal plant
health.
The vegetated shelf Determine the source of the problem: soils, hydrology,
Plants are dead, disease, etc. Remedy the problem and replace plants.
diseased or dying. Provide a one-time fertilizer application to establish the
ground cover if a soil test indicates it is necessary.
Remove the weeds, preferably by hand. If pesticide is
Weeds are present. used, wipe it on the plants rather than spraying.
Shrubs have started to
grow on the Remove shrubs immediately.
embankment.
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Consult a professional to remove muskrats or beavers and
beaver activity is
repair any holes or erosion.
Pi t p�pp tiaJ JIai ICU IV
The embankment grow on the Consult a dam safety specialist to remove the tree.
am Honk mn ant
An annual inspection by
an appropriate
professional shows that Make all needed repairs immediately.
the embankment needs
repair.
Clean out the outlet device and dispose of any sediment in
Clogging has occurred. a location where it will not cause impacts to streams or the
The outlet device SCM.
The outlet device is
damaged. Repair or replace the outlet dev ice.
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trees are growing on the Remove the weeds or trees.
rn at
Floating wetland The anchor cable is
island (if applicable)
damaged, disconnected Restore the anchor cable to its design state.
or missing.

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

Wet Detention Pond Design Summary
Wet Pond Diagram
WETPOND ID FOREBAY MAIN POND
2 Permanent Pool El. 186.31 Permanent Pool El. 186.31
Temporary Pool El: 187.75 Temporary Pool El: 187.75
Pretreatment other ' No Clean Out Depth: 4.31 Clean Out Depth: 4.31
than forebay? Sediment Removal El 182 Sediment Removal El 182
Has Veg.Filter? No Bottom Elevation: 182.5 Bottom Elevation: 182.5
WETPOND ID FOREBAY MAIN POND
1 Permanent Pool El. 185.58 Permanent Pool El. 185.58
Temporary Pool El: 189.78 Temporary Pool El: 189.78
Pretreatment other No Clean Out Depth: 3 Clean Out Depth: 3
than forebay? Sediment Removal El 182.58 Sediment Removal El 182.58
Has Veg.Filter? Bottom Elevation: 181.58 Bottom Elevation: 181.58
ATTACH ADDITIONAL SHEETS IF NECESSARY