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HomeMy WebLinkAboutSW3190901_OPERATION_MAINTENANCE_AGREEMENT_9/30/2019Operation & Maintenance Agreement Project Name: Project Location: Dollar General - Salisbury - Old Concord Road Old Concord Road/Heilig Road, Salisbury, NC Cover maintenance records shall be kept on the following BMP(s). This maintenance record shall be kept in a log in a known set location. Any deficient BMP 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 BMP(s). The BMP(s) on this project include (check all that apply & c( Bioretention Cell Quantity: Dry Detention Basin Grassed Swale Green Roof Infiltration Basin Infiltration Trench Level Spreader/VFS Permeable Pavement Proprietary System Rainwater Harvesting Sand Filter Stormwater Wetland Wet Detention Basin Disconnected Impervious Area User Defined BMP Quantity: Quantity: Quantity: Quantity: Quantity: Quantity: Quantity: Quantity: Quantity: Quantity: Quantity: Quantity: Present: Present: nding O&M tables wil 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): ❑e aaaea automauca 114, -80.4 I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any changes to the system or responsible party. Signatur * Responsible Party: Title & Organization: Street address: City, state, zip: Phone number(s): Email: A Joe Strickland Director of Operations - NC, Teramore Development, LLC. 214 Klumac Road, Suite 101 Salisbury, NC 28144 704.224.7364 'strickkand teramore-net L4114 7-4 IV , a Notary Public for the State of Date: 9 ld /9 k I X 7-)-./ CAk o LrrV.4 County of __`_ X U t,,-/ do hearby certify that D-U.r7-%tTLk L, 4,Vp personally appeared before me this day of Sr__ A7 C 111fa and acknowledge the due execution of the Op r`a ons an;6Maintenarwe Agreement. Witness my hand and official seal, - L% DANIEL ALMA ZAN NOTARY PURL C Rowan Court North Carolin My Commission Expires J ne 25, 2022 STOgfib�z My commission expires J t)N 2 S, 2 0 7- Z 9/17/2019 Version 1.4 O&M MalWal Page 1 of 3 Important maintenance procedures: - The drainage area will be carefully managed to reduce the sediment load to the sand filter. - The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds six inches. - Once a year, sand media will be skimmed. - The sand filter media will be replaced whenever it fails to function properly after maintenance. The sand filter 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 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. BMP element: problem: Flow to remediate the problem: Entire BMP rashldebris is present. Removethe trashldebris. JPotential Adjacent pavement (ifediment is present on the Sweep or vacuum the sediment as soon as possible. applicable) avement surface. Perimeter of sand filter Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then plant a erosive gullies have formed. ground cover and water until it is established. Provide lime and a one- time fertilizer application. Vegetation is too short or too Maintain vegetation at an appropriate height. long. Flow diversion structure The structure is clogged. Unclog the conveyance and dispose of any sediment offsite. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. The inlet device The pipe is clogged. Unclog the pipe. Dispose of the sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to smooth it over and provide erosion swale. control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and replace with clean stone, covered in sediment (if applicable). Forebay or pretreatment Sediment has accumulated to Search for the source of the sediment and remedy the problem if area a depth of greater than six possible. Remove the sediment and stabilize or dispose of it in a inches. location where it will not cause impacts to streams or the BMP. 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 a pesticide is used, wipe it on the plants rather than spraying. Filter bed and underdrain Water is ponding on the Check to see if the collector system is clogged and flush if necessary. collection system surface for more than 24 If water still ponds, remove the top few inches of filter bed media and hours after a storm. replace. If water still ponds, then consult an expert. The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Department of Environment and Natural damage have occurred at the Resources Regional Office, outlet. STORM-EZ /ersion 1.4 9/17/2019 O&M Manual Page 3 of 3