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• <br /> analytical results for groundwater samples are summarized in Table 2 Laboratory data sheets <br /> and chain-of-custody documentation are included in Appendix B <br /> 3 0 SUBSURFACE CONDITIONS <br /> 3.1 Geolou <br /> Soil from the bonngs generally consisted of silts and clays from the surface to 45 feet bgs Soil <br /> consisted of silty sand and sand from depths between 45 to 55 feet bgs <br /> Soil boring logs with a detailed description of soil types are contained in Appendix A <br /> 40 RESULTS <br /> 4,1 Soil Analvtical Results <br /> The soil samples collected from borings SB10 through S1313 did not contain any detectable <br /> concentrations of TPHg, BTEX, MTBE, TAME, TBA, ETBE, DIPE, 1,2-DCA, or EDB <br /> The soil samples collected from boring SB9 at a depth of 50 feet bgs contained TPHg at a <br /> concentration of 1 6 mg/kg <br /> Analytical results of soil samples are summanzed in Table 1 Laboratory data sheets and chain- <br /> of-custody documentation are presented in Appendix B <br /> 42 Groundwater Analytical Results <br /> The groundwater sample collected from SB10 contained MTBE and 1,2-DCA at concentrations <br /> of 9 2 ug/L and 5 8 ug/L, respectively <br /> The groundwater samples collected from S31 contained TPHg, toluene, ethyl benzene, xylenes, <br /> TBA, and 1,2-DCA at concentrations of 650 ug/L, 5 3 ug/L, 4 6 ug/L., 18 ug/L, 17 ug/L, and 14 <br /> ug/L,respectively <br /> The groundwater samples collected from SB12 and SB13 did not contain any detectable <br /> concentrations of TPHg, BTEX, MTBE, TAME, TBA, ETBE, D1PE, 1,2-DCA, or EDB A <br /> groundwater sample was not collected from SB9 due to direct-push refusal before reaclung the <br /> water table <br /> Analytical results of groundwater samples are summarized in Table 2 Laboratory data sheets <br /> and chain-of-custody documentation for groundwater samples are contained in Appendix B <br />• <br /> S 1En,.irommta1122493\mportsWMIV day 5 <br />