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Soil samples recovered during the drilling activities were examined, classified, <br /> and their descriptions recorded. Soils were described visually in accordance <br /> with the Standard Practice for Description and Identification of Soils (Visual <br /> Manual Procedure) , by ASTM D-2488 method. The logs of the borings are presented <br /> in Figures 4 - 6: Logs of Borings. Explanations of the symbols used in the <br /> boring logs are presented in Figure 7: Key to Boring Logs/Unified Soil <br /> Classification System. <br /> VII. ANALYTICAL TESTING <br /> The recovered soil samples were submitted to Western Environmental Science And <br /> Technology, a State of California Certified Laboratory. Analytical testing was <br /> scheduled and performed in accordance with the State of California, Regional <br /> Water Quality Control Board Guidelines. <br /> The soil samples were tested for Total Petroleum Hydrocarbons as Diesel (TPH-D) <br /> by RWQCB Method GCFID 3550, Total Petroleum Hydrocarbons as Gasoline with <br /> Benzene, Toluene, Xylene and Ethylbenzene (TPH-G/BTEX) by RWQCB Method GCFID <br /> 5030/8020M, and Volatile Organic Compounds (VOC) by EPA Method 624/8240. <br /> Summary of the tests performed and the analytical test results are presented on <br /> Tables 1 and 2. The analytical test data, along with the chain-of-custody <br /> records are presented in Appendix. <br /> VIII. CONCLUSIONS <br /> The analytical testing of a soil sample collected at 1 foot from soil probe SP-3 <br /> detected 16 ppm of Total Petroleum Hydrocarbons as Motor Oil; the testing of this <br /> sample did not detect the other tested constituents. The testing of soil samples <br /> recovered at 3 and 7 feet from soil probe SP-3 did not detect the tested <br /> constituents. <br /> In addition, the testing of soil samples obtained from the other soil probes and <br /> the exploratory borings did not detect the tested constituents. <br /> The testing results indicate that a localized contamination of the surf icial soil <br /> may have occurred in the area of the soil probe SP-3 location. <br /> 4 - <br />