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HomeMy WebLinkAboutWQCS00187_Varience Request_20180831 ROY COOPER Governor MICHAEL S. REGAN Secretary • Water Resources LINDA CULPEPPER ENVIRONMENTAL QUALITY Interim Director August 31, 2018 Gerard J. Weindel, Mayor Town of St. Pauls 210 West Blue Street St. Pauls, NC 28384 • Subject: Variance Request Approval - Wastewater Collection System Rehabilitation — CWSRF Project No. CS370529-04 Town of St. Pauls (WQCS00187) Dear Mr. Weindel: The Division of Water Resources (Division) has reviewed the submitted variance request received on August 28, 2018 for the subject project. The Division will grant the variance request for the rehabilitation and installation of gravity sewer below the minimum required slope, in accordance with the provisions for alternative design under 15A NCAC 02T.0105(n): 1. Pursuant to the variance request received August 28, 2018 from McGill Associates, P.A., on behalf of the Town of St. Pauls, a variance is granted for the following as indicated on the provided plans, specifications, and supporting documents: a. Construction and operation of approximately 1,750 linear feet of 8-inch gravity sewer between manholes MH-1, MH-1A, MH-2, MH-3, MH-4, and MH-5 at a slope of 0.30% and between MH-14 and the existing manhole at N. Maple Street at a slope of 0.22%; and the b. Rehabilitation and operation of approximately 6,352 linear feet of 8-inch gravity sewer along North Wilkinson Drive at slopes of 0.34%, 0.31%, and 0.30%, along West Broad Street at slopes of 0.24%, 0.34% and an unknown slope, along East Broad Street at slopes of 0.27% and 0.23%, along East Armfield Street at slopes of 0.31%, 0.26%, 0.23%, and 0.21%, along Seawell Street at a slope of 0.27%, along East Eure Street at a slope of 0.19%, along East Brannon Street at an unknown slope, along South Powers Street at a slope of 0.27%, and along East Blue Street at slopes of 0.35% and 0.30%; c. Per this variance approval,the lines as listed above are subject to the following requirements: i. The sections of gravity sewer as described above shall be designated as "high-priority sewer" in accordance with 15A NCAC 02T.0402. State of North Carolina I Environmental Quality I Water Resources 1617 Mail Service Center i Raleigh,North Carolina 27699-1617 919-807-6300 Town of St. Pauls WQCS00187 ii. High-priority sewers shall be inspected by the permittee or its representative at least once every six-months in accordance with the permittee's individual system-wide collection system permit (WQCS00187). 2. An alternative design is approved for a separation between manholes of approximately 460 linear feet and approximately 457 linear feet, both located along East Armfield Street. Per 15A NCAC 02T.03050)(2), the permittee shall be responsible for maintaining the capability to perform routine cleaning and maintenance on the portions of the sewer noted as not meeting the maximum separation distance between manholes of 425 linear feet. Regardless of the variance approval, in the event that the wastewater collection facilities fail to perform satisfactorily, including the creation of nuisance conditions,the Permittee shall take immediate corrective action, including those as may be required by this Division; such as the construction of additional or replacement facilities. All other elements of this project shall be constructed in accordance with all applicable rules and statues including, 15A NCAC 2T; the Division of Water Resources' (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; and the Division's Minimum Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable. Approval of the variance request does not constitute approval of the permit. If you have any questions, please contact Christyn Fertenbaugh, P.E. at 919-707-3625 or via email at christyn.fertenbaugh@ncdenr.gov. Sincerely, JV)‘14\1\' • for Linda Culpepper Interim Director, Division of Water Resources i Deborah Gore, PERCS Supervisor Division of Water Resources, NCDEQ cc: David Honeycutt, P.E., McGill Engineers, P.A. (david.honeycutt@mcgillengineers.com) Ken Pohlig, P.E., Project Manager, DWI (ken.pohlig@ncdenr.gov) Fayetteville Regional Office, Water Quality Section Regional Operations (electronic copy) Water Quality Central Files—WQCS00187 PERCS Files (electronic copy)