HomeMy WebLinkAboutSW6240601_O&M Agreement/Plan_20240830 CJperafiion i Mainfienance Acree'menfi
Project Name: The Homestead Subdivision
Project Location: Phillipi Church Road, near Raeford, 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: 3 Location(s): Noth side of project
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: Yes Type: Dis ersed flow only
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: Ben Stout
'Title & Organization: Managing Member-The Homestead at Hoke, LLC
Street address: 222 Maiden Lane
City, state, zip: Fayetteville, North Carolina 28301
Phone number(s): 910-779-0019
Email: ben@benstoutconstruction.com
Signature: Date: 11 Z`�
PS( a Notary Public for the State of
County of do hereby certify thatIl
personally appeared before me this _ day of MPK— �ol�o��i and
acknowledge the due execution of the Operations and Maintenance Agreement .
Witness my hand and official seal, ALI��O�
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STORM-EZ Page 1 of 1
Version 1.5 O&M Agreement g
we 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.
Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground
The perimeter of the erosive gullies have cover and water until it is established. Provide lime and a one
wet pond formed. 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 damaged (if Repair or replace the pipe.
The inlet device applicable).
Regrade the swale if necessary and provide erosion control
Erosion is occurring in the devices such as reinforced turf matting or riprap to avoid
swale (if applicable). 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
design depth for sediment location where it will not cause impacts to streams or the SCM
storage.
The forebay
Erosion has occurred.
Provide additional erosion protection such as reinforced turf
matting or riprap if needed to prevent future erosion problems.
Remove the weeds, preferably by hand. If pesticide is used,
Weeds are present. wipe it on the plants rather than spraying.
Met Pond Maintenance Requirements (Continued)
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
design sediment storage location where it will not cause impacts to streams or the SCM
depth.
The main treatment
Algal growth covers over
area 50% of the area. Consult a professional to remove and control the algal 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, diseased disease, etc. Remedy the problem and replace plants. Provid
or dying. 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 used,
Weeds are present. 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 Consult a dam safety specialist to remove the tree.
grow on the embankment.
An annual inspection by
an appropriate
professional shows that Make all needed repairs immediately.
the embankment needs
repair.
Clogging has occurred. Clean out the outlet device and dispose of any sediment in a
gg g location where it will not cause impacts to streams or the SCM
The outlet device
The outlet device is
Repair or replace the outlet device.
damaged.
Weeds or volunteer trees
Remove the weeds or trees.
are growing on the mat.
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 occurred at Repair the damage and improve the flow dissipation structure.
the outlet.
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 ID FOREBAY MAIN POND
POND 1 Permanent Pool El. 174.5 Permanent Pool El. 174.5
Temporary Pool El: 175.75 Temporary Pool EL 175.75
Pretreatment No Clean Out Depth: 4 Clean Out Depth: 5
other than Sediment Removal E 170.5 Sediment Removal E 169.5
Has Veg. Filter? No Bottom Elevation: 169.2 1 Bottom Elevation: 1 169
WET POND ID FOREBAY MAIN POND
POND 2 Permanent Pool El. 180.5 Permanent Pool El. 180.5
Temporary Pool El: 182.78 Temporary Pool El: 182.78
Pretreatment No Clean Out Depth: 6 Clean Out Depth: 6
other than Sediment Removal E 174.5 Sediment Removal E 174.5
Has Veg. Filter? Bottom Elevation: 173 Bottom Elevation: 174
WET POND ID FOREBAY MAIN POND
POND 3 Permanent Pool El. 181.5 Permanent Pool El. 181.5
Temporary Pool El: 183.08 Temporary Pool El: 183.08
Pretreatment No Clean Out Depth: 5 Clean Out Depth: 5
other than Sediment Removal E 176.5 Sediment Removal E 176.5
Has Veg. Filter? Bottom Elevation: 175 Bottom Elevation: 176
ATTACH ADDITIONAL SHEETS IF NECESSARY
Low Density Maintenance Requirements
Important maintenance procedures:
The drainage area to the vegetated conveyance or vegetated receiving area will be
carefully managed to reduce the sediment load to the vegetated conveyance or
After the initial fertilization to establish the grass in the vegetated conveyance or the
vegetated receiving area, fertilizer will not be applied to the vegetated receiving
The vegetated conveyance or vegetated receiving area will be inspected quarterly. Records of
operation and maintenance will be kept in a known set location and will be available upon request.
,ection activities shall be performed as follows.Any problems that are found shall be repaired immediately.
SCM element: Potential problem: How to remediate the problem:
Maintain grassed vegetation such that the swale or
Vegetation is too short vegetated area does not erode during the peak flow
Vegetation or too long. ve g g
from the 10-year storm
Remove the trash/debris.
grade the soil if necessary to remove the gu y, an
Vegetated receiving Areas of bare soil
areas and/or erosive gullies then re-sod (or plant with other appropriate species)
and water until established. Provide lime and a one-
have formed.
time fertilizer application.
Clogging has Clean out the outlet device. Dispose of the sediment
occurred. off-site.
The outlet device (if
applicable).
The outlet device is
Repair or replace the outlet device.
damaged
Erosion or other signs
Repair the damage and improve the flow dissipation
of damage have
structure.
occurred at the outlet.
The receiving water Discharges from the
site are causing
erosion or Contact the local NCDEQ Regional Office.
sedimentation in the
receiving water.