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Home My WebLink AboutSW1221101_O&M Agreement/Plan_20221110Operation & Maintenance Agreement Project Name: JONAS RIDGE CONVENIENCE CENTER AND PARK PHASE 1 Project Location: 8436 NC 181 Newland, NC 28657 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: ing O&M sheets will Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Type: oe aaaea auiomau 18436 NC 181 Newland, NC 28657 1 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. - Title & Organization: Street address: City, state, zip: Phone number(s): Email: Bryan Steen County Manager, Burke County NC 200 Avery Avenue Morganton, NC, 28655 828.764.9350 bryan.steen@burkenc.org Signature: Date: /4,, I, . JAVMJ 6�F'`Al�r� , a Notary Public for the State of Iu0 r � 6kVlii-�'4 County of (,,(,� do hereby certify that n ye • 6% 6. J` -tZe -) personally appeared before me this ! day of OC:+, 2,492— 2— and acknowledge the due execution of the Operations and Maintenance Agreement. Witness wliatxdgqd official seal, p , .....•.oj•• Q' f oR;missl'i . So_T,gRt- N •.o UBE.1G Sea! My commission expires 0e4: 15, Z10 22, STORM-EZ 10/1112022 Version 1.5 O&M Agreement Page 1 of 1 Stormwater Wetland Maintenance Requirements Important operation and maintenance procedures: _ Immediately following construction of the stormwater wetland, conduct bi-weekly inspections and water wetland plants bi-weekly until vegetation becomes established (commonly six weeks). Before and immediately after plant installation, monitor water level and adjust to ensure that plants are not completely inundated. _ No portion of the Stormwater wetland will be fertilized after the initial fertilization that is required to establish the wetland plants. - Stable groundcover will be maintained in the drainage area to reduce the sediment load to the wetland. _ At least once annually, a dam safety expert will inspect the embankment. Any problems that are found will be repaired immediately. After the wetland 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: Potentialproblem: How I will remediate theproblem: The entire wetland Trash/debris is present. Remove the trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground wetiand 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 The 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 swale (if applicable). devices such as reinforced turf matting or riprap to avoid future problems with erosion. Sediment has accumulated in the forebay to a depth of Search for the source of the sediment and remedy the problem if less than 15" or that inhibits possible. Remove the sediment and dispose of it in a location the forebay from where it will not cause impacts to streams or the SCM. functioning well. The 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. Stormwater Wetland Maintenance Reauirements (Continued) SCM element: Potential problem: How I will remediate the problem: A tree has started to grow If the tree is t6" in diameter, remove the tree. If the tree is >6" in on the embankment. diameter, consult a dam safety specialist to remove the tree. An annual inspection by an Embankment appropriate professional Make all needed repairs immediately. shows that the embankment needs repair. Evidence of muskrat or Consult a professional to remove muskrats or beavers and repair beaver activity is present any holes or erosion. Algal growth covers over 30% of the deep pool and Consult a professional to remove and control the algal growth. shallow water areas. Cattails, phragmites or other invasive plants cover Remove the plants by hand or by wiping them with pesticide (do 30% of the deep pool and not spray) - consult a professional. shallow water areas. The temporary inundation zone remains flooded more Unclog the outlet device immediately. than 5 days after a storm event. Deep pool, shallow water Determine the source of the problem; soils, hydrology, disease, and shallow land areas 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 necessary. Best professional practices show that pruning is needed to maintain optimal Prune according to best professional practices. plant health. Sediment has accumulated and reduced the depth to Search for the source of the sediment and remedy the problem if 75 /o of the original design possible. Remove the sediment and dispose of it in a location depth of the deep pools. where it will not cause impacts to streams or the SCM. Sediment has accumulated and reduced the depth to Search for the source of the sediment and remedy the problem if Micropool 75 /o of the original design possible. Remove the sediment and dispose of it in a location depth. where it will not cause impacts to streams or the SCM. Clogging has occurred. gg g Clean out the outlet device. Dispose of the sediment in a location The outlet device where it will not cause impacts to streams or the SCM. The outlet device is Repair or replace the outlet device. damaged Stormwater Wetland Maintenance Reauirements lContinued) SCM element: Potential problem: How I will remediate the problem: 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 wetland are causing erosion or sedimentation in Contact the local NCDEQ Regional Office. the receiving water.