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cALEFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> ORDER NO. <br /> WASTE DISCHARGE REQUIREMENTS <br /> FOR <br /> COUNTY OF SAN JOAQUIN <br /> NORTH COUNTY RECYCLING CENTER AND SANITARY LANDFILL <br /> CLASS III LANDFILL <br /> SAN JOAQUIN COUNTY <br /> The California Regional Water Quality Control Board, Central Valley Region. (hereafter Board), <br /> finds that: <br /> ischarger) owns <br /> t. The San Joaquin County Department of Public Works he facility reafter was preUviously regulated by Waste <br /> operates the North County Sanitary Landfill. <br /> Discharge Requirements Order No. 94-260 in conformance with Title 23. California Code of <br /> Regulations (CCR), Division 3, Chapter 15 (hereafter Chapter 15). <br /> The 320-acre facility, Assessor Parcels No. 065-120-02, -03, -08, -09, is owned and operated <br /> by the San Joaquin County Department of Public Works.R Ee MDB M, afacility is 9 s shown in les east f Lodi <br /> and 12 miles northeast of Stockton, in Section 21, , <br /> Attachments A and B, which are incorporated herein and made part of this Order. <br /> ;. The waste management facility consists of a single landfill containing 11 modules. each <br /> mom <br /> constructed on an as needed basis. Waste disposal activities <br /> s an of the 185 4 aches proposed currente occurred witin the <br /> fill modules 1 and 2,as shown on Attachment B. which p <br /> for landfill use. <br /> 4. On 8 December 1994, the Discharger proposed an engineered alternative to the prescriptive <br /> liner requirements of RCRA. Subtitle D. The proposed engineered alternative substitutes a <br /> geosynthetic clay liner (GCL) for two feet of clay. Both the engineered alternative and the <br /> prescriptive requirement include a 60 mil HDPE component in the base liner. The proposal to <br /> ion that the permeability of the proposed liner system <br /> substitute a GCL included a demonstrat <br /> will result in a lower leakage rate than the prescriptive requirement. The Discharger alsoIt 9 <br /> proposes to construct an 80 mil HDPE sidewall liner in place of the prescriptive linerIL N <br /> requirement. The 80 mil HDPE liner will be manufactured with special features to improveIL N <br /> construction quality assurance and prevent leaks. These waste discharge requirements approve <br /> the proposed engineered alternative. <br />