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"1 <br /> l <br /> 3.0 SOIL TREATMENT PROGRAM <br /> The soil from the underground storage tanks release area was treated using a thermal soil desorption process. <br /> The thermal soil treatment program consisted of the following technical segments: (1) soil sampling of the <br /> stockpiled soil prior to transportation; (2)transportation of the stockpiled soil to the fixed thermal treatment <br /> plant; (3)thermal soil treatment; (4)confirmation sampling and analysis; and(5)landfilling of the treated <br /> soil. A description of each segment is presented in the following sections. <br /> 3.1 SOIL SAMPLING PRIOR TO TRANSPORTATION <br /> On December 18, 1996 during the tank removal program, a representative of Blaes Environmental collected <br /> three soil samples (SP-1, SP-2, and SP-3) to confirm the presence and evaluate the concentration of <br /> petroleum hydrocarbons in the stockpiled soil. The soil samples were transported to Columbia Analytical <br /> Services, Inc, of Canoga Park, California for independent laboratory analysis. The soil samples were <br /> analyzed for Total Petroleum Hydrocarbons (TPH) using EPA Method'8015 Modified, for Benzene, <br /> Toluene, Ethylbenzene, and Total Xylenes(BTEX)using EPA Methods 5030/8020, for Methyl tert-Butyl <br /> Ether (MTBE) using EPA Methods 5030/8020, and for Total Lead using EPA Methods 3010/6010. The <br /> laboratory report is presented in Appendix A. A summary of the results are presented in Table 2. Soil <br /> sample locations are depicted in Figure 2. <br /> Table 2 <br /> Laboratory Results of the Pre-Treatment Soil Sample <br /> Sample TPH Benzene Toluene Ethylbenzene Total Xylenes MTBE Total Lead <br /> I.D. (ppm) (PPS) (ppm) (ppm) (ppm) (Ppm) (Ppm) <br /> SP-1 1,300 ND ND ND 0.008 <2 ND <br /> SP-2 0.2 ND ND ND ND ND ND <br /> SP-3 ND ND ND ND ND ND ND <br /> Reporting 0.1 0.005" 0.005 0.005 0.005 4:010 5 <br /> Limit <br /> Note: TPH -Total Petroleum Hydrocarbons using EPA Method 8015 Modified <br /> MTBE -Methyl tert-Butyl Ether using EPA Methods 5030/8020 <br /> ppm -parts per million <br /> ND -not detected above the laboratory method reporting limits <br /> IN., 5 <br />