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mles <br /> o Collect and classify relatively undisturbed soil <br /> fepn the ning two soil <br /> first soil boring drilled and evewithin the <br /> ry five (5) feet <br /> borings drilled. <br /> Screen soil samples in the field using an organic vapor meter (OVM) and <br /> record all readings. <br /> inted, 4-inch <br /> Construct three ground water monitoring <br /> chloride{PVC)casing nusing threadothe borehole. <br /> inside diameter,Schedule 40 p yvi . <br /> c Develop and purge the walls and collect ground water samples. <br /> O Analyze selected soil and grouof California,water ples for hydrocarbons in a <br /> laboratory certified by the State <br /> the location, ground surface <br /> Contract a licensed land surveyor to survey <br /> elevation and the top of casing elevation for each well. <br /> 0 <br /> Elevate ground water flow direction and ground water gradient beneath the <br /> site. <br /> Interpret field and laboratory data to assess the extent of soil and ground <br /> water contamination. <br /> ' o Drill additional soil borings and install monitoring wells, if necessary to <br /> elevate the extent of contamination. <br /> and <br /> tory <br /> o Prepare a Problem AssessmendfoReOploort`sand watergusleldand present the <br /> procedures, local geology, by ,g gy <br /> findings,interpretations,and conclusions to the Health Department for review. <br /> This work will be conducted to comply with ground water assessment guidelines of <br /> the San Joaquin County Public Health Services and guidelines prepared by the Tri-Regional <br /> Water Quality Control Boards. <br /> 4 <br />