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5.3 a^i1 Analysis <br /> A total of seven soil samples <br /> and Was <br /> Bc collected <br /> for from the four. <br /> soil borings, B-2, B-3, <br /> The official laboratory reports are included in Appendix G. <br /> The results of the soil analysis are presented in Table 2 and <br /> discussed below: <br /> TpH-D was only detected in the samples collected at <br /> 6.5 and 11.5 feet in Soil Boring B-2 at <br /> concentrations of 180 and 5.4 ppm, respectively. <br /> e Total xylenes were only detected in Soil Boring B-2 <br /> - at 6.5 feet with a concentration of 38 parts per <br /> billion (ppb). <br /> e TpH-G, benzene, toluene, and ethylbenzene were not <br /> detected above the reported laboratory detection <br /> limit in any of the soil samples analyzed. <br /> 5.4 �vX ShallaW Gr <br /> results of the laboratory <br /> healses of QSGW5 <br /> from hTemporary e ground wWells/Soil <br /> samples collected during t <br /> are presented Table 1 and discussed <br /> Borings B-1 through 8-9, <br /> below: <br /> e TpH-D was detected in ground water samples from Soil <br /> Boringd B-3, B-6, and B-7 at concentrations ranging <br /> from 78 to 60,000 ppb. <br /> ® Ground water samples from Soil Borings B-2, B-6, B-7, <br /> B-8, and B-9 had concentrations of TpH-G rang <br /> from <br /> 240 to 110,000 ppb. <br /> a Various concentrations of BTEX constituents were <br /> detected in the ground water samples from Soil <br /> Borings B-3, B-6, and B-7. <br /> e The ground water samples from Soil .Boxings B-6 and <br /> B-7 had the highest concentrations of TPH-G, TPH-D, <br /> and BTEX constituents. These borings are both onsite <br /> and Soil Boring B-7 is downgradient of the former <br /> underground storage tanks. <br /> -6 and B-7 were installed had been <br /> The area where Borings B } <br /> .- previously excavated and backfilled with clean soil <br /> (Alton, 1990) . The source of the hydrocarbons detected in <br /> these areas is possibly the adsorbed-phase hydrocarbons in <br /> the capillary fringe. <br /> 10 <br /> i' <br />