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INFORMATION SHEET <br />ORDER NO. R5-2003-0049 <br />WASTE DISCHARGE REQUIREMENTS <br />FORWARD LANDFILL <br />FORWARD INC. AND ALLIED WASTE INDUSTRIES <br />SAN JOAQUIN, COUNTY <br />Allied Waste Industries as Forward Inc. owns and operates Forward and Austin Road Landfills, <br />two adjacent facilities approximately seven miles southeast of Stockton on Austin Road. The <br />discharger has requested revised Waste Discharge Requirements that combine the two facilities. <br />The combined facility will be approximately 567 acres and will include both existing and <br />planned waste management units. <br />New waste management units will be designed and constructed for the discharge of designated <br />waste. The liner system for new units consists of a single composite base liner composed of <br />from bottom to top: a prepared subgrade, two feet of compacted clay with a hydraulic <br />conductivity of 10"7 or less, 60 mil HDPE, one -foot gravel drainage layer, filter fabric, and one - <br />foot operations layer. Double composite liners will be installed under landfill sumps; and a <br />electric leak test will be conducted over the entire base liner after installation of the operations <br />layer. <br />Implementation of a corrective action plan to cleanup a groundwater contaminant plume at <br />Austin Road Landfill is ongoing. The contamination is characterized by the presence of volatile <br />organic compounds (VOCs) including but not limited to vinyl chloride, tetrachloroethane, <br />trichloroethane, and cis-1,2-dichloroethane. The Corrective Actions include installation of a <br />landfill cover on the unlined waste unit, improvements to the landfill gas extraction system and <br />groundwater recharge. Additionally, improvements will be made to the monitor well system; <br />and if groundwater contamination is not contained or if significant progress toward cleanup is <br />not made additional extraction wells will be brought on line. <br />n <br />