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HomeMy WebLinkAboutNC0024228_approval_20070627Michael F. Easley, Govemor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality June 27, 2007 Terry L. Houk, Asst. Director of Public Services City of High Point P.O. Box 230 High Point, North Carolina 27261 Subject: Eastside WWTP (NC0024210) & Westside WWTP (NC0024228) Residential Flow Reduction Approval Guilford County Dear Mr. Houk: On June 25, 2007, the Division of Water Quality received a flow reduction request for residences in the city of High Point served by the Eastside WWTP (NC0024210) & the Westside WWTP (NC0024228). The letter requests an allowable flow rate of 240 GPD per 3 bedroom residential connection based on the evaluated data from the WWTP and the active number of residential connections. The DMR data provided between January 2005 and December 2006 with daily readings taken during November 2006 was analyzed by central office and regional office staff. Based upon this data the Division hereby approves the use of 90 GPD per residential bedroom, with a minimum of 180 gpd for one and two bedroom units in all applicable non -discharge permit applications. Flow shall be incremented by 90/gpd for each bedroom above two. Regardless of the adjusted design daily wastewater flow rate, at no time shall the wastewater flows exceed the effluent limits defined in the NPDES permit for the treatment facility or exceed the capacity of the sewers downstream of any new sewer extension or service connection(s). The residential water usage data include 13 residences with "0" flow. These residences were excluded from the calculations. This resulted in an average daily flow of 150 GPD. If you have any questions or comments regarding this matter, please contact Deborah Gore at (919) 733-5083 ext. 593 [email: Deborah.Gore@ncmail.net]. Sincerely, Coleen H. Sullins cc: Steve Tedder, Winston-Salem Regional Office Steve Mauney, Winston-Salem Regional Office NPDES Permit File No. NC0024228 PERCS Flow Reduction File One �11 Pretreatment, Emergency Response and Collection Systems Unit Internet http://h2o.enr.nc.state.us/PERCS North Carolina 1617 Mail Service Center, Raleigh, NC 27699-1617 An Equal Opportunity Action Employer Naturally Telephone (919) 733-5083 Fax (919) 733-0059 50% recycled/10% post -consumer paper