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HomeMy WebLinkAboutSW6221008_O&M Agreement/Plan_20221027Operation & Maintenance Agreement Project Name: Project Location: Stone Creek Phillipi Church Road, Raeford, Hoke County, NC Cover Page laintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location. ,ny deficient SCM elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can ffect the integrity of structures, safety of the public, and the pollutant removal efficiency of the SCM(s). he 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 onding O&M sheets will Location(s): Location(s).- Location(s): 1 Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): No Location(s): No Location(s): No Type: ne aaaea auio acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for ach SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to ie system or responsible party. Responsible Party: Title & Organization: Street address: City, state, zip: Phone number(s): Email: Signature RobQ44kM 'ck, , C-, rl-y4rl Member 1 Wolf Development Holding, LLC 2422 Wrightsville Avenue Wilmington, NC 28403 910-740-2547 rbbritt@gmail.com Date: �' —."N MQ,l xt , W a Notary Public for the State of NOS( l ojztIhOL, :ounty of jj q �}, � j(, do hereby certify that 1(liid.01r\ W 1 W G UAL b ersonally appeared before me this day of��0111,�� 1 �U�— and cknowledge the due execution of the Operations and Maintenance Agreement . Vitness my hand and official seal, r eian+e Miller I�O�AR PUBLIC Brunswick aunty, NC My Commission ex res pctobef 04, 2025 ,eal FORM-EZ My commission expires 6124/20, MA rums Mainteria"ce Mequirernents mportant 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_ 'CM element: Potential problem: How to remediate the problem: 'he entire wet pond Trash/debris is present. Remove the trash/debris. 'he perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground fond 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. 'he inlet device applicable). Erosion is occurring in the Erosi Regrade the swale if necessary and provide erosion control applicable}. swalproblems devices such as reinforced turf matting or riprap to avoid future 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. storage. 'he forebay 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. ;CM element: VVUL rurlu iwairlrenarlce neyuiremen[5 tL.vniinueo) 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. 'he main treatment area (Algal growth covers over Consult a professional to remove and control the algal growth. 150% of the area. 'he vegetated shelf 'he embankment 'he outlet device 1oating wetland island if applicable) 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 prune according to best professional practices. needed to maintain optimal plant health. 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. 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 location where it will not cause impacts to streams or the SCM. The outlet device is Repair or replace the outlet device. jdamaged. Weeds or volunteer trees Remove the weeds or trees. are growing on the mat. The anchor cable is damaged, disconnected or Restore the anchor cable to its design state. missing. rxet ryna maintenance MUgUIrernents tL.Ununuecaj ;CM 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. Discharges from the wet 'he receiving water pond are causing erosion Contact the local NCDEQ Regional Office. or sedimentation in the receiving water. VVUL UUMILwn rUrIu vebiyrr aurnrnary WET POND ID FOREBAY MAIN POND 1 1 Permanent Pool El. 176 Permanent Pool Ei. 176 Pretreatment other Na than forebay? Has Veg. Filter? No Temporary Pool El: 177.8 Clean Out Depth: 4 Sediment Removal El 172 Bottom Elevation: 171 ATTACH ADDITIONAL SHEETS IF NECESSARY Temporary Pool El.- 177.8 Clean Out Depth: 4 Sediment Removal EI 172 Bottom Elevation: 171