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HomeMy WebLinkAboutSW4220601_O&M Agreement/Plan_20220712Operation & Maintenance Agreement Project Name: I Haven brooke Subdivision Pvo� act Location: 3224 Bethel Church Rd., Kernersville, 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 & cc 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: O&M sheets will be added Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): At end of Location(s): Location(s): Type: 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: Gregory Garrett Title & Organization: Manager, Braxton Real Estate and Development Co., LLC Street address: 6420 Hampton Knoll Rd. City, state, zip: Clemmons NC 27012 Phone number(s): 336-399-7197 Email: braxtonreanddev@grnaii.com Signature: Date: Z a Notary Public for the State of County of/��; G;', do hereby certify that��t,,$;��� personally appeared before me this day of :WI��_. �' � and acknowledge the due execution of the OO��per do 11and Maintenance Agreement . Witness my hand and official seal,�S1��,`J ICHAEL J NOTARY DAVIE C My commission expires STORM-EZ 6/14/2022 Version 1.5 O&M Agreement Page 1 of 5 Treatment Swale Maintenance Requirements Important operation and maintenance procedures: The drainage area of the grassed swale will be carefully managed to reduce the sediment load to the grassed swale. After the initial fertilization to establish the grass in the swale, fertilizer will not be applied to the treatment swale. The grassed swale will be inspected quarterly. 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: Trash/debris is present. Remove the trash/debris. Areas of bare soil and/or Regrade the soil if necessary to remove the gully, re -sod erosive gullies have (or plant with other appropriate species) and water until f ormed. established. Provide lime and a one-time fertilizer application. Sediment covers the Remove sediment and dispose in an area that will not grass at the bottom of impact streams or SCMs. Re -sod if necessary. the swale. The entire length of Vegetation is too short Maintain grassed vegetation such that the swale or the swale or too long. vegetated area does not erode during the peak f low f rom the 10-year storm Determine the source of the problem: soils, hydrology, Grass is dead, diseased disease, etc. Remedy the problem and replace plants. or dying. Provide a one-time fertilizer application to establish the ground cover if necessary. Remove the trees and woody vegetation from the woody vegetation are treatment swale, regrade the treatment swale if necessary present in the treatment and re-establish grass as shown on the approved plans. 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 Repair the damage and improve the f low dissipation at the outlet. structure. The receiving water Discharges f rom the treatment swale are causing erosion or Contact the local NCDEQ Regional Office. sedimentation in the receiving water. Low Density Maintenance Requirements Important maintenance procedures: IIIG UIQIIICLLJ.G QIGQ LU LIIG V Uyt:;LQLGU VUIIV Gy C111UU UI V GLJ.GLQLGU 1UUV1V Illy QIGQ Will UG Ully managed to reduce the sediment load to the vegetated conveyance or vegetated receiving nran 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 is too short Maintain grassed vegetation such that the swale or Vegetation or too long. vegetated area does not erode during the peak f low f rom 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 erosive gullies have then re -sod (or plant with other appropriate species) and Vegetated receiving formed. water until established. Provide lime and a one-time areas f ertilizer application. Trees and/or other Remove the trees and woody vegetation from the swale, woody vegetation are regrade the swale if necessary and re-establish grass as present in the swale. shown on the 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 erosive gullies have then re -sod (or plant with other appropriate species) and formed. water until established. Provide lime and a one-time f ertilizer application. Sediment covers the grass at the bottom of Remove sediment and dispose in an area that will not Vegetated the swale. impact streams or SCMs. Re -sod if necessary. conveyances / swales / The side slope is steeper Regrade the slopes to the permitted configuration per the roadside ditches (other than curb outlet than the approved approved plan and reestablish vegetation. If as -built or swales) conf iguration. existing conditions do not allow the slopes to be regraded, contact the applicable permitting agency. Determine the source of the problem: soils, hydrology, Grass is dead, diseased disease, etc. Remedy the problem and replace plants. or dying. Provide a one-time fertilizer application to establish the ground cover if necessary. Trees and/or other Remove the trees and woody vegetation from the woody vegetation are v egetated conv ey ance, regrade the v egetated present in the vegetated conveyance if necessary and re-establish grass as shown conv ey ance. on the approved plans. The longitudinal slope Regrade to meet the permitted longitudinal slope as shown exceeds 5%. on the approved plans. The swale profile does Curb outlet swales or not match the approved Regrade the swale to the approved profile as shown on the vegetated areas detail. approved plans. The length of the swale Extend the swale to achieve the 100-foot minimum length. or vegetated area is If as -built or existing conditions do not allow the slopes to less than 100 feet. be regraded, 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 Repair the damage and improve the f low dissipation at the outlet. structure. The receiving water Discharges f rom the site are causing erosion or Contact the local NCDEQ Regional Office. sedimentation in the receiving water.