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Home My WebLink AboutSW1220701_O&M Agreement/Plan_20220805Operation & Maintenance Agreement Project Name: All About Plumbing Project Location: 5521 Old Haywood Road, Suite 1, Mills River, NC 28759 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: ig 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: ae aaaea automaticai 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: Title & Organization: Street address: City, state, zip: Phone number(s): Email: All About Plumbing Caleb Wilson 5521 Old Haywood Rd Mills River, NC 28759 828-778-2425 off iceBallaboutolumbinanc.com Signature: I AI Date: 7 — U, '.d 2 I, 1Sna(, Dod fuy-v a Notary Public for the State of J✓�, O Qiv County of do hereby certify that Ced 6 4'4)t );5o'_ personally appeared before me this . day of cJujUJ and acknowledge the due execution of the Opera ions hand ain�nceAgreement. Witness my hand and official seal, My commission expires STORM-EZ 6/29/2022 Version 1.5 O&M Agreement Page 1 of 1 Bioretention Maintenance Requirements Important operation and maintenance procedures: Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). - Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell. - Heavy equipment will NEVER be driven over the bioretention cell. - Special care will be taken to prevent sediment from entering the bioretention cell. - Once a year, a soil test of the soil media will be conducted. Remove top layer of fill media when the pool does not drain quickly. Based on the media specification, the pool should drain within 24 hours. After the bioretention cell is established, it will 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 bioretention Trash/debris is present. Remove the trash/debris. cell The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to remove the gully, plant ground erosive gullies have cover and water until it is established. Provide lime and a one- bioretention cell formed. time fertilizer application. The structure is clogged. Unclog the structure and dispose of any sediment off -site. The flow diversion Make any necessary repairs or replace if the damage is too structure (if applicable) The structure is damaged. much for repair. The inlet pipe is clogged Unclog the pipe and dispose of any sediment in a location (if applicable). where it will not cause impacts to streams or the SCM. The inlet pipe is cracked or otherwise damaged (if Repair or replace the pipe. applicable). Erosion is occurring in the Regrade the swale if necessary and provide erosion control The inlet device swale (if applicable). devices such as reinforced turf matting or riprap to avoid future erosion problems. Stone verge is clogged or Remove sediment and clogged stone and replace with clean covered in sediment (if stone. applicable). Flow is bypassing Regrade if necessary to route all flow to the pretreatment area. pretreatment area and/or Restabilize the area after grading. gullies have formed. Sediment has Search for the source of the sediment and remedy the problem accumulated to a depth if possible. Remove the sediment and dispose of it in a location The pretreatment area greater than three inches. where it will not cause impacts to streams or the SCM. 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. Rinrptpntinn Maintenance Reauirements (continued) SCM element: Potential problem: How to remediate the problem: Best professional practices show that Prune according to best professional practices. Maintain lines pruning is needed to of sight between 2'-6'. maintain optimal plant health. Determine the source of the problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one- Bioretention cell Plants are dead, diseased time fertilizer application to establish the ground cover if a soil vegetation or dying. test indicates it is necessary. If sod was used, check to see that it was not grown on clay or impermeable soils. Replace sod if necessary. Remove the weeds, preferably by hand. If pesticide is used, Weeds are present. wipe it on the plants rather than spraying. Tree stakes/wires are Remove tree stake/wires (which can kill the tree if not present six months after removed). planting. Spot mulch if there are only random void areas. Replace whole Mulch is breaking down or mulch layer if necessary. Remove the remaining mulch and has floated away. replace with triple shredded hard wood mulch at a maximum depth of four inches. Determine the extent of the clogging - remove and replace either just the top layers or the entire media as needed. Bioretention cell mulch Soils and/or mulch are Dispose of the spoil in an appropriate off -site location. Use clogged with sediment. triple shredded hard wood mulch at a maximum depth of four and media inches. Search for the source of the sediment and remedy the problem if possible. An annual soil test shows that pH has dropped or Dolomitic lime shall be applied as recommended per the soil heavy metals have test and toxic soils shall be removed, disposed of properly and accumulated in the soil replaced with new planting media. media. Clogging has occurred. Wash out the underdrain system. The underdrain, filter Clean out the drop inlet. Dispose of the sediment in a location fabric element, and Clogging has occurred. where it will not cause impacts to streams or the SCM.. outlet system The drop inlet is damaged Repair or replace the drop inlet. 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 bioretention cell are causing erosion or Contact the local NCDEQ Regional Office. sedimentation in the receiving water.