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HomeMy WebLinkAbout24_City Park SCM 2_O&M AgreementFILTER STRIP/RESTORED RIPARIAN BUFFERILEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT Project Name: City Park Level Spreader #2 City Project Number: City BMP ID: City Park BMP #2 PIN Number: 8864790671 Mail after recording to: City of Burlington Stormwater Division P.O. Box 1358 Burlington, NC 27216 NORTH CAROLINA ALAMANCE COUNTY This STORMWATER OPERATION AND MAINTENANCE AGREEMENT, made this day 181h of February , 20 15 by City of Burlington — Stormwater Division whose principal address is 1103 S. Mebane Street, Burlington NC 27216 with, to, and for the benefit of the City of Burlington, a municipal corporation of the State of North Carolina, whose address is P.O. Box 1358, Burlington, North Carolina 27216. City of Level Spreader O&A/Agreement #1 BURLINGTON Water Resources Filter Strip, Restored Riparian Buffer and Level Spreader Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will 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 removal efficiency of the BMP. Important maintenance procedures: — Immediately after the filter strip is established, any newly planted vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation — Stable groundcover will be maintained in the drainage area to reduce the sediment load to the vegetation. — Two to three times a year, grass filter strips will be mowed and the clippings harvested to promote the growth of thick vegetation with optinwnn pollutant removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as 12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not require this type of maintenance. — Once a year, the soil will be aerated if necessary. — Once a year, soil pH will be tested and lime will be added if necessary. After the filter strip is established, it will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inch. Records of operation and maintenance will be kept in a known set location and will be available upon request. Annually, by May 31, an inspection shall be completed by a qualified professional and submitted to the City of Burlington. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How t will remediate the problenr. The entire filter strip Trash/debris is present. Remove the trash/debris. system The Flow splitter device (if The Flow splitter device is Unclog the conveyance and dispose of applicable) clogged. any sediment off -site. The Flow splitter device is Make any necessary repairs or replace if damaged. damage is too large for repair. F le, St, iI, Rev... vd Buller Lerel Spreude, W k / = l greewem-Juh' _7013 Page ? o t 4 6MP element: Potentialproblem: How I will remediate theproblem: The swale and the level lip The swale is clogged with Remove the sediment and dispose of it sediment. off -site. The level lip is cracked, settled, Repair or replace lip. undercut, eroded or otherwise damaged. There is erosion around the end Regrade the soil to create a berm that is of the level spreader that shows higher than the level lip, and then plant stormwater has bypassed it. a ground cover and water until it is established. Provide lime and a one- time Fertilizer application. Trees or shrubs have begun to Remove them. grow on the Swale orjust downslo e of the level lip. The bypass channel Areas of bare soil and/or erosive Regrade the soil if necessary to remove gullies have formed. the gully, and then reestablish proper erosion control. Turf reinforcement is damaged Study the site to see if a larger bypass or riprap is rolling downhill. channel is needed (enlarge if necessary). After this, reestablish the erosion control material. The filter strip Grass is too short or too long (if Maintain grass at a height of applicable). approximately three to six inches. Areas of bare soil and/or erosive Regrade the soil if necessary to remove gullies have formed. the gully, and then plant a ground cover and water until it is established. Provide time and a one-time fertilizer application. Sediment is building up on the Remove the sediment and restabilize the filter strip. soil with vegetation if necessary. Provide lime and a one-time fertilizer application. Plants are desiccated. Provide additional irrigation and fertilizer as needed. Plants are dead, diseased or Determine the source of the problem: dying. soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application. Nuisance vegetation is choking Remove vegetation by hand if possible. out desirable species. If herbicide is used, do not allow it to get into the receiving water. The receiving water Erosion or other signs of damage Contact the City of Burlington Water have occurred at the outlet. Resources stormwater Division at 336- 222-5140. / dic, Saip Resmred Bullle, Le,e( Spreade, UA IL-I,oreenww-hdi '013 Page 3 of 4 I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify the City of Burlington of any problems with the system or prior to any changes to the system or responsible party. Project name: City Park Level Spreader #2 BMP drainage area number: Area #1 Print name: Michael Layne PE Title: Water Resources - Field O erations Manager Address: 1103 S. Mebane Street, Burlington NC 27216 Phone: 336-222-5140 Date: 2./ $.//S a Notary Public for the State of County of d4&u"k , do hereby certify that personally appeared before me this �lr , and acknowledge the due execution of the restored buffer and/or level spreader maintenance requirements. Witness my hand and official seal, tiG�QLL� pY�j q NOTARY �� 7e PUBLIC Z 7 9A'CE CO SEAL c� My commission expires /Y Level Spreader O&M Agreement 42 Page 4 of 4