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Project 113-26-04, 05, Page 11 <br /> November 17, 1995 <br /> The soil cuttings pile was sampled for TPH as gasoline, BTEX, total lead, and RCL The <br /> three point composite sample representing the soil borings B--8 to B-14 contained 3 <br /> ppm TPH gasoline, very low BTEX, and background lead level The soil sample MW- <br /> 5 6' was the only monitoring well soil sample to contain detectable TPH as gasoline <br /> so it was additionally samples for total lead and RCI The lead level was at <br /> background, and RCI results were negative The soil was profiled into and disposed of <br /> at the BFI facility in Livermore <br /> Groundwater Sample Analytical Results <br /> Nineteen groundwater samples were obtained from the wells and borings between <br /> July and October, 1995 The samples were analyzed for TPH as gasoline and BTEX by <br /> EPA methods 5030/8015 modified and 602 <br /> All of the monitoring well groundwater samples analyzed N.D. for TPH as gasoline <br /> with traces of xylenes at MW-5 and MW-8, both up gradient from the USTs. Nine of <br /> the twelve groundwater grab samples from the borings contained between 2.4 (B-17) <br /> and 57 (B-8) ppm TPH as gasoline with BTEX in or near the ppm range B-8 is down <br /> gradient from the dispensers The down gradient and cross gradient borings (besides <br /> B-8) yielded samples with N D results for gasoline and BTEX The results of these <br /> analyses are summarized in Table 3 <br /> Parker Environmental Services, 190 East 7th Street, Pittsburg, CA 94565-2317 <br /> Pbone (510) 439-1024 Fax (510) 439-2566 <br />