SW6221102_O&M Agreement Form_20221128

Operation & Maintenance Agreement
Project Name:
Project Location:
Utility Improvements to Serve Ashley Heights
Reservation Road, Hoke County
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 & co
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.
ionding O&M sheets will
17 Location(s):
2
No ONo
No
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:
be added automatically):
Near lots 48 & 49 1
Near lot 1 #2 & Near lots 17-21 #3
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:
Title & Organization:
Street address:
City, state. zip:
Phone number(s)-
Email:
Signature
Ashley Heights, LLC
David Upchurch -Managing Partner
150 S. Page Street
Southern Pines, NC 28387
910-684-8646
[e-mail]
a Notary Public for the State of
Date: //. q
County ofex�-eAn=�. do hereby certify that DfLA(, —�,
personally appeared before me this ` Lf(4— day of �JcJ�be-+- and
acknowledge the due execution of the Operati and Maintenance Agreement.
Witness my hand and official seal, t
Christina Hay
be
Notary
Montgomery Cou
North Carolina
Seal My commission expires ( ,��. D,�
STORM-EZ 1114/2022
Version 1.5 O&M Agreement Page 1 of 1

Infiltration Basin Maintenance Requirements
Important operation and maintenance procedures:
- The drainage area will be carefully managed to reduce the sediment load to the infiltration basin.
No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish
- the vegetation. Lime may be allowed if vegetation is planted on the surface of the infiltration basin and a
soil test shows that it is needed.
- The vegetation in and around the basin will be maintained at a height of four to six inches.
After the infiltration basin 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 infiltration
basin
Trash/debris is present.
Remove the trash/debris-
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, plant ground
erosive gullies have
cover and water until it is established. Provide lime and a one -
The grass filter strip or
formed.
time fertilizer application.
Sediment has accumulated
Search for the source of the sediment and remedy the problem if
other pretreatment area
to a depth of greater than
possible. Remove the sediment and dispose of it in a location
three inches.
where it will not cause impacts to streams or the SCM.
The structure is clogged.
Unclog the conveyance and dispose of any sediment in a location
The flow diversion
where it will not cause impacts to streams or the SCM.
structure (if applicable)
Make any necessary repairs or replace if damage is too much for
The structure is damaged.
repair.
The inlet pipe is clogged (if
Unclog the pipe and dispose of any sediment in a location where it
applicable).
will not cause impacts to streams or the SCM.
The inlet pipe is cracked or
otherwise damaged (if
Repair or replace the pipe.
applicable).
The inlet device
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
erosion problems.
Stone verge is clogged or
covered in sediment (if
Remove sediment and clogged stone and replace with clean
applicable).
stone.
More than four inches of
Search for the source of the sediment and remedy the problem if
sediment has accumulated.
possible. Remove the sediment and dispose of it in a location
where it will not cause impacts to streams or the SCM.
The basin
Erosion of the basin surface
has occurred or riprap is
Provide additional erosion protection such as reinforced turf
displaced.
matting or riprap if needed to prevent future erosion problems.
Water is standing more
Replace the top few inches of soil to see if this corrects the
than three days after a
standing water problem. If not, consult an appropriate professional
storm event.
for a more extensive repair.

Infiltration Basin Maintenance Requirements (continued)
SCM element:
Potential problem:
How to remediate the problem:
Shrubs or trees are growing
on the embankment.
Remove shrubs and trees immediately.
The embankment
An annual inspection by an
appropriate professional
Make needed repairs immediately.
shows that the
embankment needs repair.
Clogging has occurred.
gg g
Clean out the outlet device and dispose of sediment in a location
The outlet device
where it will not cause impacts to streams or the SCM.
The outlet device is
damaged
Repair or replace the outlet device.
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
infiltration basin are causing
erosion or sedimentation in
Contact the local NCDEQ Regional Office.
the receiving water.

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.
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.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to remove the gully, plant ground
pond
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
applicable).
Unclog the pipe. Dispose of the sediment off -site.
The inlet pipe is cracked or
The inlet device
otherwise damaged (if
Repair or replace the pipe.
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 to a depth
Search for the source of the sediment and remedy the problem
greater than the original
if possible. Remove the sediment and dispose of it in a location
design depth for sediment
where it will not cause impacts to streams or the SCM.
The forebay
storage.
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.

Wet Pond Maintenance Requirements (Continuedl
SCM element:
Potential problem:
How to remediate the problem:
Sediment has
accumulated to a depth
Search for the source of the sediment and remedy the problem
greater than the original
if possible. Remove the sediment and dispose of it in a location
design sediment storage
where it will not cause impacts to streams or the SCM.
depth.
The main treatment area
Algal growth covers over
Consult a professional to remove and control the algal growth.
50% of the area,
Cattails, phragmites or
other invasive plants cover
Remove the plants by wiping them with pesticide (do not spray).
50% of the basin surface.
Best professional practices
show that pruning is needed to maintain
Prune according to best professional practices.
optimal plant health.
The vegetated shelf
Determine the source of the problem: soils, hydrology, disease,
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 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
Remove shrubs immediately.
grow on the embankment.
Evidence of muskrat or
Consult a professional to remove muskrats or beavers and
beaver activity is present.
repair any holes or erosion.
The embankment
A tree has started to grow
Consult a dam safety specialist to remove the tree.
on the embankment.
An annual inspection by
an appropriate
professional shows that
Make all needed repairs immediately.
the embankment needs
repair.
Clogging has occurred.
gg g
Clean out the outlet device and dispose of any sediment in a
The outlet device
location where it will not cause impacts to streams or the SCM.
The outlet device is
damaged.
Repair or replace the outlet device.
Weeds or volunteer trees
Remove the weeds or trees.
a
are growing on the mat.
Floating wetland island
(if applicable)
The anchor cable is
damaged, disconnected or
Restore the anchor cable to its design state.
missing.

Wet Pond Maintenance Requirements (Continued)
SCM element:
Potential problem:
How to 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 wet
pond are causing erosion
or sedimentation in the
Contact the local NCDEQ Regional Office.
receiving water.

Wet Detention Pond Design Summary
0
Pretreatment other
than forebay? No
Has Veg. Filter? No
0
Pretreatment other No
than forebay?
Has Veg, Filter? No
FOREBAY
Permanent Pool El.
411
Temporary Pool El:
412.4
Clean Out Depth:
3
Sediment Removal E
408
Bottom Elevation:
407
FOREBAY
Permanent Pool El.
415
Temporary Pool El:
417.1
Clean Out Depth:
4
Sediment Removal El
411
Bottom Elevation:
410
MAIN POND
Permanent Pool El.
411
Temporary Pool El:
412.4
Clean Out Depth:
5
Sediment Removal El
406
Bottom Elevation:
405
Permanent Pool El.
415
Temporary Pool El:
417.1
Clean Out Depth:
5
Sediment Removal EI
410
Bottom Elevation:
409