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i <br /> Former Discovery Chevrolet March 13, 1997 <br /> Tracy,California Work Plan <br /> Selected soil and the groundwater samples will be analyzed for TPHg, BTEX, and <br /> MTBE using Environmental Protection Agency (EPA) Methods 8015 (modified) <br /> and 8020/602, respectively. In addition, selected soil samples will be analyzed for <br /> total organic content, permeability and porosity. Selected groundwater samples <br /> will be analyzed for Alkalinity, Nitrate, Sulfate, Total Dissolved Solids, and <br /> Dissolved Iron, and groundwater in each well will be field tested for dissolved <br />' oxygen. These additional test will be used to evaluate conditions related for <br /> I' natural bio-attenuation of hydrocarbons. j <br /> jTask 8 Prepare and submit a report detailing field methods, results, and conclusions of <br /> the investigation. <br /> DISTRIBUTION <br /> A copy of this work plan should be forwarded to: <br /> Mr. Steve Sasson <br /> San Joaquin County Environmental Health Department I <br /> 304 E. Weber <br /> Stockton, California 95201 <br /> Ms. Elizabeth Thayer <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> li <br /> Sacramento, California 95827 <br /> i <br /> 3001-11b.wp 5 HORIZON ENVIRONMENTAL INC. <br /> I <br /> I1 <br /> 1 <br />