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I• <br /> SCOPE OF WORK <br /> The purpose of this hydrogeologic investigation was to <br /> provide an assessment of subsurface soil and water conditions to <br /> determine the potential impact of a product line leak. The <br /> following work steps were undertaken in completing the assess- <br /> ment: <br /> Perform a brief review of local geologic and <br /> hydrogeologic data from available literature. <br /> Explore subsurface soil and groundwat,�,r conditions <br /> by drilling, sampling, and logging three soil <br /> borings along the underground product lines. <br /> k tel! three, 2-inch diameter PVC groundwater <br /> i <br /> r monitoring wells in the soil borings. <br /> a Obtain groundwater samploa for analysis of total <br /> [` hydrocarbons (THC) and benzene, toluene and xylene ; <br /> r (BTX). <br /> { m <br /> Present the results cf the investigation and <br /> findings in a summary report. <br /> SOIL RORINGS <br /> �i <br /> The purpose of the soil borings was to explore the site for <br /> Lthe presence of subsurface hydrocarbon contamination and to <br /> obtain a preliminary definition of the vertical and areal extent <br /> of the contamination, should any be found. Chevron USA requested <br /> that three borings be drilled and monitoring wells be installed <br /> if groundwater was encountered. The three borings were located <br /> along the underground product lines (see Figure 2, Site Plan). <br /> j Boring 1 was located adjacent to the suspected product line leak <br /> t. location. <br /> 4�1 <br /> l 1 <br /> q <br /> 1. i <br />