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Home My WebLink AboutSW4210704_O&M Agreement/Plan_20211013Operation & Maintenance Agreement Project Name: Project Location: Dolcetto Biesecker Road & West Center Street Extension 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: g O&M sheets will be added automatically): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): ' Location(s): Location(s)i Location(s): Location(s): Location(s): Western portion of site Location(s): Location(s): Type -.,Curb outlets stem 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. Signature: Responsible Party: Title & Organization: Street address: City, state, zip: Phone number(s): Email: Justin R. Nifong Director, Dolcetto Community Association, Inc. 3409 Union Grove Rd. Winston-Salem NC 27127 919-348-2194 jrnifong@nkpatentlaw.com Date: I, >n a Notary Public for the State of p C(AA" `r County of _ ��$ do hereby certify `thlat,� and �j �� t� 1 r) Ca personally appeared before me this ! l l day of (� �Y 7�� 2 ( acknowledge the due execution of the Operations and Maintenance Agreement . Witness my hand and official seal, Zaatg�-- U DORIS CHARMAINE ACKSON NOTARY PUBLi Forsyth County North Carolina My Commission Expires Mar h 14, 2023 Sea! My commission expires 3 _l " - 2-vZ 3 STORM-EZ 10111 /202 t Version 1.5 O&M Agreement Page 1 of 1 Dry Pond Maintenance Requirements Important 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 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 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 The 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 The inlet device otherwise damaged (if Repair or replace the pipe. 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 future swale (if applicable). problems 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. The forebay Provide additional erosion protection such as reinforced turf Erosion has occurred. matting or riprap if needed to prevent future erosion problems. Remove the weeds, preferably by hand. If pesticide is used, wipe Weeds are present. 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. The 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 are growing in the main Remove the weeds, preferably by hand. If pesticide is used, wipe treatment area. it on the plants rather than spraying. Dry Pond Maintenance Requirements (continued) SCM 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. A tree has started to grow Consult a dam safety specialist to remove the tree. The embankment on the embankment. An annual inspection by an appropriate professional Make all needed repairs immediately. shows that the embankment needs repair. Clogging has occurred. gg g Clean out the outlet device. Dispose of the sediment in a 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 Erosion or other signs of damage have occurred at Repair the damage and improve the flow dissipation structure. the outlet. Discharges from the dry The receiving water 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 1 Temporary Pool El: 729 Temporary Pool El: 729 Clean Out Depth: 5 Clean Out Depth: 5 Pretreatment No Sediment Storage El: 724 Sediment Storage El: 724 Has Veg. Filter No Bottom Elevation: 720 Bottom Elevation: 720 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 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. 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. 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: Vegetation Vegetation is too short or too long. Maintain grassed vegetation such that the swale or vegetated 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 - Vegetated receiving erosive gullies have formed. sod (or plant with other appropriate species) and water until established. Provide lime and a one-time fertilizer application. areas 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. 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 Vegetated conveyances / at the bottom of the swale. streams or SCMs. Re -sod if necessary. swales / roadside ditches (other than curb outlet swales) The side slope is steeper than the approved configuration. Regrade the slopes to the permitted configuration per the approved plan and reestablish vegetation. If as -built or existing conditions do not allow the slopes to be regraded, contact the 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. The longitudinal slope Regrade to meet the permitted longitudinal slope as shown on exceeds 5%. the approved plans. Curb outlet swales or The swale profile does not Regrade the swale to the approved profile as shown on the vegetated areas match the approved detail. approved plans. The length of the swale or Extend the swale to achieve the 100-foot minimum length. If as - vegetated area is less than built or existing conditions do not allow the slopes to be regraded, 100 feet. contact the applicable permitting agency. Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device (if applicable) 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. Discharges from the site The receiving water are causing erosion or Contact the local NCDEQ Regional Office. sedimentation in the receiving water.