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Euuueu G.Be...Jn. <br /> MAneaw Rco,unuaz <br /> Water Boards <br /> Central Valley Regional Water Quality Control Board RECEIVED 24 January 2017 RECEIVED <br /> JAN 2 5 2017 <br /> J. Price, Warden ENVIRONMENTAL HEALTH <br /> Deuel Vocational Institution PCRMIT/SERVICES <br /> California Department of Corrections <br /> P.O. Box 400 <br /> Tracy, CA 95378-0004 <br /> APPROVAL OF CLEAN CLOSURE WORKPLAN, DEUEL VOCATIONAL INSTITUTION, SAN <br /> JOAQUIN COUNTY <br /> The discharge of waste from the reverse osmosis water treatment facility at the California <br /> Department of Corrections and Rehabilitation (Discharger) Deuel Vocational Institute in San <br /> Joaquin County is regulated by Waste Discharge Requirements Order R5-2007-0005 and Cleanup <br /> and Abatement (CAO) Order R5-2015-0703. <br /> Regional Board staff has reviewed the 8 December 2016 Clean Closure Workplan Comment <br /> Response (Response). The Response was prepared by Dewberry and Associates to address <br /> staff's comments regarding the initial Clean Closure Workplan submitted on 1 July 2016. Based on <br /> staff's review, the Response, which amends the Clean Closure Workplan, adequately addresses <br /> background characterization of soil beneath the surface impoundments, as well as confirmation <br /> sampling following excavation of impacted soils (if any). <br /> You may implement the amended workplan as proposed. Please notify Board staff seven days <br /> prior to conducting field sampling activities. A Site Characterization and Background Soil <br /> Concentration Report shall be submitted within 60 days of completing soil sampling activities at the <br /> site. The report shall contain the following items: <br /> 1. A scaled site map with all sampling locations clearly identified. <br /> 2. Calculated values for background concentrations of constituents in native soil at the site. <br /> 3. Tabulated sampling results for all constituent concentrations at each of the specified <br /> sampling intervals. <br /> 4. Copies of the laboratory analytical reports for all sampling locations. <br /> Following approval of the background concentrations and the new design by Regional Board <br /> permitting staff, construction of the new surface impoundments may begin. Please note that the <br /> existing surface impoundments must be clean closed prior to beginning grading/construction of the <br /> new surface impoundments. Additionally, because grading/construction activities will disturb <br /> greater than one acre of land, you must obtain a construction storm water permit from the Regional <br /> Board. <br /> KARL E. LONGLEV SCD, P.E., GHAIR I PAMELA C. CREEDON P.E., BCEE. txccuTrvC Or,ICCR <br /> 11020 Sun Center Drive 0200,Rancho Cordova.CA 856]0 I www.weterboarde.ca.gov/centralvalley <br /> L�necTueo..ren <br />