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3-3 <br /> information would be required to assess the influence of the pumping of the supply wells on <br /> the shallow water-bearing horizon Installation of a shallow morutoriing well immediately ad- <br /> jacent to one of the supply wells was not possible due to the presence of cultural features <br /> 3 2 SOIL SAMPLE ANALYTICAL RESULTS <br /> The following sections provide a summary of the results of soil sampling conducted at each <br /> of the three areas that were addressed by this investigation <br /> 3 2 1 Former UST Area <br /> During the initial Phase II Investigation, three borings (SB-1 [MW-1], SB-2, and SB-3) were <br /> advanced in the area where a former underground storage tank (UST) was located Soil <br /> Boring SB-1 (winch was later converted to Monitoring Well MW-1) was located within the <br /> limits of the former UST pit Six soil samples were collected from these borings from depth <br /> intervals that ranged from 10 to lb feet below ground surface (ft-bgs) These samples were <br /> analyzed for BTEX, TPH-purgeable fuels as gasoline, and lead (Table 1) <br /> A summary of the analytical soil sample results are provided in Table 5 The results of <br /> analyses indicated that lead was detected in each sample at concentrations that ranged from <br /> 5 1 milligram per kilogram (mg/kg) to 17 mg/kg TPH-purgeable fuels as gasoline were <br /> detected in each sample with concentrations ranging from 120 mg/kg to 4,200 mg/kg <br /> BTEX were detected in each soil sample submitted for analyses Benzene concentrations <br /> ranged from 1,400 microgram per kilogram (µg/kg) to 55,000 µg/kg, toluene concentrations <br /> ranged from 750 µglkg to 69,000 µg/kg, ethylbenzene concentrations ranged from 900 µg/kg <br /> to 54,000 µg/kg, and total xylenes concentrations ranged from 1,700 µg/kg to 220,000 <br /> µg/kg In general, the highest concentrations of TPH-purgeable fuels as gasoline and BTEX <br /> were reported for samples that were collected from the top of the saturated soil from Soil <br /> Borings SB-1 (MW-1), SB-2, SB-3, SB-8, SB-10, and SB-12 <br /> Based on the results of the initial Phase II Investigation sampling, seven additional test <br /> borings (SB-8 through SB-14) and three additional monitoring wells (MW-4, MW-5, and <br /> MW-6) were drilled to estimate the extent of soil and shallow ground water impact <br /> 29023 <br /> ' 'REALISTIC SOLUTIONS FOR HAZARDOUS WASTE PROBLEMS' AFG=2� <br />