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' 4.0 RESULTS <br /> 41 Soil <br /> ' The soil beneath the site consists predominantly of silts and sands In general, a dark yellowish <br /> brown, clayey silt and fine sandy silt was encountered from ground surface to 16 feet bgs From <br /> ' 16 feet bgs to approximately 50 feet bgs, a yellowish gray, medium to coarse grained sand was <br /> observed From approximately 50 feet bgs to the total depth of the deeper borings (56 5 feet) a <br /> ' dark yellowish brown gravelly coarse sand was observed The drill logs are included in <br /> Appendix A <br /> 1 <br /> ' 42 Laboratory <br /> Selected soil samples were analyzed at Excelchem Environmental Labs using U S <br /> ' Environmental Protection Agency (EPA) Method 5030/8015 (modified) for TPHg and EPA <br /> Method 8020 for benzene, toluene, ethylbenzene, and xylenes (BTEX) In addition, one soil <br /> sample from each bonng was analyzed using EPA Method 8010 for 1,2-Di bromo ethane (EDB) <br /> and EPA Method 6010 for total lead <br /> ' e indicated that vapor well W-8 contained TPH <br /> The results of the laboratory analyses p g <br /> ' concentrations ranging from not detected above the method reporting limit to 7,900 ppm All of <br /> the other soil boring samples submitted to the laboratory for TPHg analysis did not have <br /> ' concentrations detected above the method reporting limit Benzene was detected in borings SB- <br /> 7, SB-8, and SB-9 at concentration ranging between 0 005 and 0 13 ppm Total lead was <br /> ' detected in SB-7, SB-8, and W-8 in concentrations ranging from 0 60 to 8 0 ppm No EDB was <br /> detected above the laboratory reporting limits in any of the soil samples submitted to the <br /> ' laboratory The soil boring and soil stockpile analytical results are shown on Table 1 The <br /> laboratory reports for the soil analyses are included in Appendix B <br /> 1 <br /> LOCKE <br /> • FLPT <br /> Job No NI0005-001-01 Iunc 14 1994 <br />