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r' <br /> i3 <br /> 22 <br /> • May 2001 <br /> AGE-NC Project No 95-0167 <br /> Page 7 of 10 <br /> ' Soil Probe Borzngs Samples <br /> • TPH-g and BTEX compounds were detected in soil samples collected from probe boring P9 <br /> ' TPH-g was detected in samples from 15 and 20 feet bsg at 11 milligram per kilogram <br /> (mg/kg) and 76 mg/kg, respectively TPH-g and BTEX compounds were not detected in soil <br /> tsamples collected from probe boring P9 at depths of 25, 30 and 35 feet bsg <br /> • BTEX compounds were detected in soil samples collected from probe boring P 10 at 30 feet <br /> bsg BTEX compounds were detected at concentrations as high as 0 12 mg/kg (xylene) <br /> ' Benzene was detected in two soil sample, P9-20 and P 10-30 at concentrations of 0 14 mg/kg <br /> and 0 021 mg/kg, respectively <br /> ' MTBE was not detected in the soil samples analyzed by EPA Method 8020 <br /> ' Laboratory results of soil samples analyzed for petroleum hydrocarbons are summarized in Table 2 <br /> The laboratory reports (MAI Laboratory ID 52545 to 52550 and 53277 to 53285), quality assurance <br /> and quality control (QA/QC) reports and chains-of-custody are included in Appendix C <br /> 3 3 HYDROCARBON-IMPACTED GROUND WATER <br /> The grab ground water collected from each soil probe boring was analyzed for TPH-g, BTEX, and <br /> nine fuel additives in accordance with EPA Methods 8015M, 8020 and 8260 Modified <br /> ' Soil Pi obe Borings Grab Water Samples <br /> TPH-g and BTEX compounds detected in each of the grab ground water samples collected <br /> and analyzed TPH-g was detected in the ground water samples collected from probe boring <br /> P9 at a concentration of 35,000 micrograms per liter (ug/l), was detected at a concentration <br /> ' of 760µg/1 from the grab ground water sample collected from boring P 10 and detected at a <br /> concentration of 660 µg/1 from the grab ground water sample collected from boring P11 <br /> • BTEX compounds were detected at concentrations as high as 3,400 4g/l (xylene) in the grab <br /> 1' ground water sample collected from P9 Benzene was detected at concentrations as high as <br /> 380 µg/l in the grab ground water sample collected from P9 <br />' •f _ MTBE was detected In one ground water sample analyzed-by EPA Method 8020 at-a- <br /> concentration of 7 7 ,ug/1 MTBE was detected by EPA Method 8260 in grab water sample <br />' P9, P10 and P11 at concentrations of 21 µg/I, 1 6 4g/1 and 5 3 ,ug/!, respectively <br /> • TBA was also detected EPA Method 8260 in the grab ground water sample collected from <br /> boring P 11 at a concentration of 22,ug/I <br /> Advanced GeoFnvirowntntal,Inc <br />