SW3221006_O&M Agreement/Plan_20221214

Operation & Maintenance Agreement
Project Name:
Project Location:
The Cottages at Wingate - Phases 1 & 2
Maye Street & Edgewood Dr
Cover Page
Maintenance records small 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 0&M sheets will
Infiltration Basin Quantity:
Infiltration Trench Quantity:
Bioretention Cell Quantity:
Wet Pond Quantity:
Stormwater Wetland Quantity:
Permeable Pavement Quantity:
Sand Filter Quantity:
Rainwater Harvesting Quantity:
Green Roof Quantity:
Level Spreader - Filter Strip Quantity:
Proprietary System Quantity:
Treatment Swale Quantity:
Dry Pond Quantity:
Disconnected Impervious Surface Present:
User Defined SCM Present:
Low Density Present:
Location(s):
Location(s):
Location(s):
Location(s):
Location(s).-
Location(s):
Location(s):
LoCation(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Type:
4
ffNo
oe aaaea automaticai
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:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Email:
Signature: I r'
County of
personally appeared before me this
acknowledge the due execution of the
Witness my hand and official seal,
N07ARyOSING
PIJBLiC
M*ckiellburg Count
xrll
� conmiss ena
as D7i
",:.
2/2420
C. Lewis II
H&H Constructors of Fayetteville, General Manager
8601 Six Forks Rd
Raleigh, NC 27615
919-800-1350
Date: / t
a Notary Public for the State of
do hereby certify that J4-G
day of I.x,uc aka and
ntenance Agreement .
Seal
STORM-EZ
Version 1.5
My commission expires T1aos _
O&M Agreement
11/7/2022
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 after 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.
ispection 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
Regrade the soil if necessary to remove the gully, plant
The perimeter of the
and/or erosive gullies
ground cover and water until it is established. Provide
wet pond
have formed.
lime and a one-time fertilizer application.
The inlet pipe is clogged
Unclog the pipe. Dispose of the sediment off -site.
(if applicable).
The inlet pipe is
cracked or otherwise
Repair or replace the pipe.
The inlet device
damaged (if applicable).
Erosion is occurring in
Regrade the swale if necessary and provide erosion
the swale (if
control devices such as reinforced turf matting or riprap
applicable).
to 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
greater than the original
of it in a location where it will not cause impacts to
design depth for
streams or 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.
Weeds are present.
Remove the weeds, preferably by hand. If pesticide is
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
greater than the original
of it in a location where it will not cause impacts to
design sediment
streams or the SCM.
storage depth.
The main treatment
Algal growth covers
Consult a professional to remove and control the algal
area
over 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).
surface.
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.
Weeds are present.
Remove the weeds, preferably by hand. If pesticide is
used, wipe it on the plants rather than spraying.
Shrubs have started to
grow on the
Remove shrubs immediately.
embankment.
Consult a professional to remove muskrats or beavers
beaver activity is
and repair any holes or erosion.
grow on the
Consult a dam safety specialist to remove the tree.
The embankment
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
Clogging has occurred.
in a location where it will not cause impacts to streams or
The outlet device
the SCM.
The outlet device is
Repair or replace the outlet device.
damaged.
trees are growing on the
Remove the weeds or trees.
Floating wetland
island (if applicable)
The anchor cable is
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
Repair the damage and improve the flow dissipation
occurred at the outlet.
structure.
The receiving water
Discharges from the
wet pond are causing
erosion or
Contact the local NCDEQ Regional Office.
sedimentation in the
receiving water.

Wet Detention Pond Design Summary
WET POND ID
FOREBAY
MAIN POND
Al
Permanent Pool El
512
Permanent Pool El 512
Temporary Pool El:
513
Temporary Pool El: 513
Pretreatment
Clean Out Depth:
4
Clean Out Depth: 4
other than
El
Sediment Removal
508
Sediment Removal 508
Has Veg. Filter%
Bottom Elevation:
507
Bottom Elevation: 507
WET POND ID
FOREBAY
MAIN POND
A2
Permanent Pool El
514
Permanent Pool El 514
Temporary Pool El:
515
Temporary Pool El: 515
Pretreatment No
Clean Out Depth:
4
Clean Out Depth: 4
other than
Sediment Removal
510
Sediment Removal 510
Has Veg. Filter, Yes
Bottom Elevation:
509
Bottom Elevation: 509
WET POND ID
FOREBAY
MAIN POND
A3
Permanent Pool El
532
Permanent Pool El 532
Temporary Pool El:
533
Temporary Pool El: 533
Pretreatment
Clean Out Depth:
4
Clean Out Depth: 4
other thanEl
Sediment Removal
528
Sediment Removal 528
Has Veg. Filter%
Bottom Elevation:
527
Bottom Elevation: 527
WET POND ID
FOREBAY
MAIN POND
B1
Permanent Pool El
498
Permanent Pool El 498
Temporary Pool El:
499.5
Temporary Pool El: 499.5
Pretreatment No
Clean Out Depth:
4
Clean Out Depth: 4
other than
Sediment Removal
494
Sediment Removal 494
Has Veg. Filter, Yes
Bottom Elevation:
493
Bottom Elevation: 493
ATTACH ADDITIONAL SHEETS IF NECESSARY