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Under the direct supervision of Ms. Letitia Resch of the <br />San Joaquin County Environmental Health Department, a total <br />of thirteen soil samples were collected from within two feet <br />of the original tank cradles. All thirteen samples were <br />analyzed for Total Purgeable Hydrocarbons (Gas) and Benzene, <br />Toluene, Xylenes, and Ethylbenzene. Tanks 4, 5, and 6 were <br />also analyzed for Total Purgeable Hydrocarbons (Diesel), and <br />Tanks 1, 4, 5, and 6 were also analyzed for Organic Lead and <br />Ethylene Dibromide (Appendix A - Lab Analyses and Chain of <br />Custody Documents). <br />Four soil samples were also obtained from specific <br />locations beneath the product lines, at a depth of two feet <br />into native soil. Line samples 1 and 2 were analyzed for <br />TPH-Gas, TPH-Diesel, BTX&E, Organic Lead, and EDB. Line <br />samples 3 and 4 were analyzed for TPH-Gas, BTX&E, Organic <br />Lead, and EDB. Line sample 3 was also requested to be <br />analyzed for Soluble Lead (Appendix A). <br />Laboratory results indicated constituent detection at <br />two sample locations. The soil sample at the south end of <br />Tank 2 returned levels of 91 ppm TPH-Gas, 0.10 ppm benzene, <br />0.72 ppm toluene, 6.6 ppm xylenes, and 0.81 ppm ethylbenzene. <br />At the Line -Sample 3 location, laboratory results indicated <br />the presence of 590 ppm TPH-Gas, 1.3 ppm benzene, 2.2 ppm <br />toluene, 5.2 ppm xylenes, and 0.30 ppm ethylbenzene. <br />For a listing of constituents tested and their <br />corresponding results see Table 1 and Appendix A. For <br />tank and sample locations, please see enclosed site map. <br />ETS ENVIRONMENTAL & ASSOC. <br />PROJECT 309B, PAGE 2 <br />