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r^ <br /> Appllerf OwSystems 4191-E Power Inn Road, Sacramento,CA 95826 (916)452-2901 <br /> s FREMONT •IRVINE s HOUSTON BOSTON •SACRAMENTO a CULVER CITY 0 SAN JOSE <br /> 1"s <br /> WORK PLAN <br /> EVALUATION OF SOIL AND <br /> GROUND-WATER CONTAMINA nON <br /> at <br /> Unocal Service Station No. 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> for <br /> Unocal Corporation <br /> r;t INTRODUCTION <br /> This Work Plan presents procedures for the evaluation of soil and ground-water <br /> contamination at Unocal Service Station No. 6981 at 4707 Pacific Avenue in Stockton. . <br /> California. Unocal Corporation (Unocal)requested that Applied GeoSystems prepare this <br /> ' Work Plan for the evaluation of the vertical and horizontal extent of hydrocarbon-product <br /> contamination at the site. This investigation is proposed in response to soil contamination <br /> encountered during installation of a gasoline-blending system 'Ly Unocal in May 1988. The <br /> work will involve drilling five soil borings,`collecting soil samples at 5-foot intervals from <br /> the borings; constructing five 4-inch-diameter groundwater monitoring wells in the <br /> -777-77 ---- boreholes;developing the wells and eoflecting' rround=water samples;analyzing selected soil <br /> fir' <br /> and .ground-water samples in .a State-ce-tifii;d laboratory; contracting a licensed land <br />