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HomeMy WebLinkAbout19970694 Ver 1_Stormwater Info_20020521i TIE JOHN R. McADAMS COMPANY III'. " T LETTER OF TRANSMITTAL - ,, F' c? To: Mr. Todd St. John Wetlands Unit NC Division of Water Quality 2321 Crabtree Blvd Raleigh, NC 27604-2260 Re: Hannover Assisted Living Sand Filter Design Maintenance and Inspection Plan I am sending you the following item(s): COPIES DATE NO. DESCRIPTION 1 5/17/02 1 Maintenance and Inspection Plan These are transmitted as checked below: ? As requested ? For your use ® For approval ? ? For review and comment ? Remarks: 05-17- 02 ** FEDERAL EXPRESS ** Job No.: HHC-01000 Copy to: Mike Munn, PE Signed: n E. Schrum, E.I. FOR INTERNAL USE ONLY ? Copy Letter of Transmittal Only to File ® Copy Entire Document to File Date: CIVIL ENGINEERING • LAND PLANNING • SURVEYING PO Box 14005 • Research Triangle Park, NC 27709 •. (919) 361-5000 • fax (919) 361-2269 www.johnrmcadams.com MAINTENANCE AND INSPECTION PLAN, Hannover Assisted Living (6 t Project Name: Hannover Assisted Living MAY 2 1 MAY Sand Filter Raleigh, North Carolina _;;'l NOS GROUP Responsible Party: Heritage Health Care Group, LLC Address: PO Box 1472 Cary, NC 27512 Phone Number: I. Inspect monthly, or after every runoff producing rainfall event (0.5 inches or greater in a 24 hour period), whichever comes first. A. Check the sand filter side-slopes; remove trash, repair eroded areas before the next rainfall event. II. Quarterly A. Inspect the collection systems (i.e. grassed swales, concrete curb openings) for proper functioning. Clear accumulated trash from basin grates and basin bottoms, and check piping for obstructions. B. Check sand filter inlet pipes for undercutting, replace riprap and repair broken pipes. C. Re-seed grassed swales, including the vegetated filter if applicable, twice a year as necessary. Repair eroded areas immediately. III. Every 6 months A. Check filter after rainfall to determine if standing water remains for greater than 24 hours. If water is not draining completely from the sand filter in 24-hours, remove first 2-3 inches of discolored sand. Replace with new sand. Sand that has been removed must be dewatered and appropriately disposed in a landfill. At time that sand is maintained, sediment chamber should also be pumped and cleaned. This material must be dewatered and appropriately disposed in a landfill. MAY 2 1 2002 IV. General ^d? TLAWS GROUP JI,LITY SECTIC?. A. All components of the sand filter system must be kept in good" working order. I acknowledge and agree by my signature below that I am responsible for the performance of the above maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the project, responsible party, or address. Print Name: 16 ria. y- Address: PO Box 1472 Cary NC 27512 Phone: (919) 460-1411 Title: Signature: Date: 3-2 71 -6 2 S , a Notary Public for the to of County of , do hereby cert?yfy that personally appeared before me this -a ay of t awf (,h , k9 a? end acknowledge the due execution of the forgoing water quality pond system maintenance requirements. Witness in hand and official seal, SEAL My commission expires v o)00(, 2