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HomeMy WebLinkAboutSW6231203_O&M Agreement/Plan_20240412 Operation & Maintenance Agreement Project Name: Gillespie - B1.9 Solar Utility Station Project Location: 3858 Gillespie Street, Fayetteville, NC 28306 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&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: 0 Location(s): Disconnected Impervious Surface Present: No Location(s): User Defined SCM Present: Yes Location(s): Low Density Present: Yes 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: Jonathan Rynne Title&Organization: Fayetteville Public Works Commission Street address: 955 Old Wilmington Road City,state,zip: Fayetteville, NC 28301 Phone number(s): 910-223-4012 Email: jonathan.rynne@faypwc.com Signature: Date: ,a Notary Public for the State of County of ,do hereby certify that personally appeared before me this day of and acknowledge the due execution of the Operations and Maintenance Agreement. Witness my hand and official seal, Seal My commission expires STORM-EZ 4/9/2024 Version 1.5 O&M Agreement Page 1 of 4 User Defined SCM Maintenance Requirements Section 1 Important operation and maintenance procedures: - Avoid compaction of subsoil: NCDEQ SW Design Manual E-6 recommendation 1. - Disconnect runoff from solar panel arrays: NCDEQ SW Design Manual E-6 recommendation 2. - Avoid concentration of stormwater: NCDEQ SW Design Manual E-6 recommendation 3. - Minimize the use of herbicides&fertilizers: NCDEQ SW Design Manual E-6 recommendation 4. - Plant a mix of warm &cool season grasses: NCDEQ SW Design Manual E-6 Recommendation 5. - Limit vertical clearance to< 10 ft: NCDEQ SW Design Manual E-6 Recommendation 6. The system will be inspected at least quarterly. Records of operation and maintenance will be kept in a known set location and will be available upon request. Section 2 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: Entire Vegetated Area Compaction Avoid compation or till and amend. Solar Area Concentration of SW Regrade as needed Entire Vegetated Area Maintenance Mow to a height of 6" Receiving Water Body Erosion or sedimentation Contact Engineer and NCDEQ Regional Office 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 Maintain grassed vegetation such that the swale or vegetated 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 Vegetated receiving formed. 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 — Regrade the slopes to the permitted configuration per the (other than curb outlet The side slope is steeper approved plan and reestablish vegetation. If as-built or existing swales) 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. 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. The receiving water Discharges from the site are causing erosion or Contact the local NCDEQ Regional Office. sedimentation in the receiving water.