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Home My WebLink AboutSW6240603_O&M Agreement/Plan_20240617 Operation & maintenance Agreement Project Name: West Pointe Subdivision Project Location: West Pointe Dr Harnett County, NC Cover Page aintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location. iy deficient SCM elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can fect the integrity of structures, safety of the public, and the pollutant removal efficiency of the SCM(s). ie SCM(s) on this project include (check all that apply & corresponding O&M sheets will be added automatically): Infiltration Basin Quantity: 0 Location(s): Infiltration Trench Quantity: 0 Location(s): Bioretention Cell Quantity: 0 Location(s): Wet Pond Quantity: 0 Location(s): Stormwater Wetland Quantity: 0 Location(s): Permeable Pavement Quantity: 0 Location(s): Sand Filter Quantity: 0 Location(s): Rainwater Harvesting Quantity: 0 Location(s): Green Roof Quantity: 0 Location(s): Level Spreader- Filter Strip Quantity: 0 Location(s): Proprietary System Quantity: 0 Location(s): Treatment Swale Quantity: 0 Location(s): Dry Pond Quantity: 1 Location(s): Southeast portion of site Disconnected Impervious Surface Present: No Location(s): User Defined SCM Present: No Location(s): Low Density Present: Yes Type: Vegetated swales/roadside ditches acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for )ch SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to e system or responsible party. Responsible Party: Dustin Blackwell Title & Organization: Weaver Development Co, Inc Street address: 350 Wagoner Dr, Suite 100 City, state, zip: Fayetteville, NC 28303 '( Phone number(s): 910-630-2100 Email: dustin@weavercompanies.com --- J VDate: Signature: 1 a ® J-Lit [volt 1)1Leod OiL , a Notary Public for the State of d P�� aunty of /�� 2I�� / 4, do hereby certify that � , �JMO )rsonally appeared before me this 2..D day of Yri' y Z®� 1- and ;knowledge the due execution of the Op o s nd Mai -na/ e gr ement . 9 'itness m�lc tid'dn4i,official seal, / ,O~ �A NOTARy u�r :-:n ' PU BLIC gal My commission expires I /2 ORM-EZ 2/20/2( Dry Pond Maintenance Requirements iportant operation and maintenance procedures: - The drainage area will be managed to reduce the sediment load to the dry pond. - Immediately after the dry pond is established, the vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). - After the initial fertilization to establish vegetation in the dry pond, fertilizer will not be applied to the dry pond. - The vegetation in and around the basin will be maintained at a height of approximately six inches. - At least once annually, a dam safety expert will inspect the embankment. Any problems that are found will be repaired immediately. After the dry pond is established, it shall be inspected quarterly and within 24 hours after every storm event greater Ian 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 SCM 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 he perimeter of the SCM 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 in a location where it applicable). will not cause impacts to streams or the SCM. The inlet pipe is cracked or he 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 Erosion (if applicable). devices such as reinforced turf matting or riprap to avoid future swaleproblems with erosion. Sediment has accumulated Search for the source of the sediment and remedy the problem if to a depth greater than the possible. Remove the sediment and dispose of it in a location original design depth for where it will not cause impacts to streams or the SCM. sediment 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. Sediment has accumulated Search for the source of the sediment and remedy the problem if to a depth greater than the possible. Remove the sediment and dispose of it in a location original design depth for where it will not cause impacts to streams or the SCM. sediment storage. he main treatment area Water is standing more Check the outlet structure for clogging. If it is a design issue, - than 5 days after a storm consult an appropriate professional. event. Weeds and noxious plants Remove the weeds, preferably by hand. If pesticide is used, wipE are growing in the main it on the plants rather than spraying. treatment area. Dry Pond Maintenance Requirements (continued) CM element: Potential problem: How to remediate the problem: Shrubs have started to Remove shrubs immediately. grow on the embankment. Evidence of muskrat or Consult a professional to remove muskrats or beavers and repair beaver activity is present. any holes or erosion. he 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 Make all needed repairs immediately. shows that the embankment needs repair. Clogging has occurred. Clean out the outlet device. Dispose of the sediment in a locatior gg g where it will not cause impacts to streams or the SCM. he outlet device The outlet device is Repair or replace the outlet device. damaged Erosion or other signs of damage have occurred at Repair the damage and improve the flow dissipation structure. the outlet. he receiving water Discharges from the dry pond are causing erosion Contact the local NCDEQ Regional Office. or sedimentation in the receiving water. Dry Detention Pond Design Summary Dry Pond Diagram DRY POND ID FOREBAY MAIN POND DRY POND Temporary Pool El: Temporary Pool El: 417.2 Clean Out Depth: 0 Clean Out Depth: 4.2 Pretreatment Yes Sediment Storage El: Sediment Storage El: 413 Has Veg. Filter No Bottom Elevation: Bottom Elevation: 414 Low Density Maintenance Requirements iportant 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 vegetated receiving area. 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 areas. le vegetated conveyance or vegetated receiving area will be inspected quarterly. Records of operation and aintenance will be kept in a known set location and will 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: Vegetation is too short or Maintain grassed vegetation such that the swale or vegetated egetation too long. area does not erode during the peak flow from the 10-year storm Trash/debris is present. Remove the trash/debris. Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then re- erosive gullies have sod (or plant with other appropriate species) and water until egetated receiving formed. established. Provide lime and a one-time fertilizer application. •eas Trees and/or other woody Remove the trees and woody vegetation from the swale, regrade vegetation are present in the swale if necessary and re-establish grass as shown on the the swale. approved plans. •3 Trash/debris is present. Remove the trash/debris. Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then re- erosive gullies have sod (or plant with other appropriate species) and water until formed. established. Provide lime and a one-time fertilizer application. Sediment covers the grass Remove sediment and dispose in an area that will not impact egetated conveyances / at the bottom of the swale. streams or SCMs. Re-sod if necessary. Hales / roadside ditches Regrade the slopes to the permitted configuration per the ►ther than curb outlet The side slope is steeper approved plan and reestablish vegetation. If as-built or existing males) than the approved conditions do not allow the slopes to be regraded, contact the configuration. applicable permitting agency. Determine the source of the problem: soils, hydrology, disease, Grass is dead, diseased or etc. Remedy the problem and replace plants. Provide a one- dying. time fertilizer application to establish the ground cover if necessary. Trees and/or other woody Remove the trees and woody vegetation from the vegetated vegetation are present in conveyance, regrade the vegetated conveyance if necessary and the vegetated conveyance. re-establish grass as shown on the approved plans. Clogging has occurred. Clean out the outlet device. Dispose of the sediment off-site. he outlet device (if zplicable) The outlet device is Repair or replace the outlet device. damaged Erosion or other signs of damage have occurred at Repair the damage and improve the flow dissipation structure. the outlet. he receiving water Discharges from the site are causing erosion or Contact the local NCDEQ Regional Office. sedimentation in the receiving water.