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I11 August 1997 <br /> • AGE-NC Project No 95-0173 <br />' Page 6 of 10 <br /> I3 0. FINDINGS <br /> 3 1 FIELD EVIDENCE OF HYDROCARBON-IMPACTED SOIL AND GROUND WATER <br /> Moderate to strong petroleum hydrocarbon odors were noted in samples collected from VW-2 at 20 <br /> to 30 feet bsg Furthermore, organic vapors were detected (using a PID) at concentrations up to 547 <br />' parts per million (ppm) <br /> Faint petroleum hydrocarbon odors were noted in samples collected from soil probe borings B-3, B-4, <br /> B-6 and wells VW-1, MW-6 and MW-9 at 20 to 40 feet bsg Additionally, organic vapors were <br /> detected in these samples at concentrations up to 237 ppm <br /> I Neither organic vapor nor hydrocarbon odor were detected during field activities from soil samples <br /> collected from soil probe borings B-5, B-7, B-8, or from«ells MW-5, MW-7 and MW-8 <br /> ISlight to moderate petroleum hydrocarbon odors were detected in grab ground water samples <br /> collected from soil probe borings B-3, B-4, B-6 and B-7 The sample collected from B-3 appeared <br /> to contain significantly stronger hydrocarbon odors than the other samples <br /> Furthermore, moderate to strop petroleum hydrocarbon odors were noted in quarterly round water <br /> strong Y q Yg <br /> samples collected from wells MW-1 through MW-4, while faint petroleum hydrocarbon odors were <br /> noted in samples collected from wells NIW-6 and MW-8 <br /> I3 2 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> I A total of twenty-nine soil samples were submitted to a state-certified laboratory for analysis of TPH- <br /> g, TPH-d, BTE&X and MTBE TPH-g was detected in soil samples collected from soil probe borings <br /> B-3, B-4, B-6, and wells MW-6, VW-1 and VW-2 The highest concentrations of TPH-g was <br /> reported from VW-2 (20-feet) at 6,600 ppm, while the lowest was reported from MW-6 (25-feet) <br /> at 1 9 ppm <br /> TPH-d was detected in soil samples collected from soil probe borings B-3, B-4, B-6, and wells MW- <br /> 6, VW-1 and VW-2 The highest concentration of TPH-d was reported in the 20-foot sample from <br /> VW-2 at 3,900 ppm, while the lowest was reported in the 25-foot sample from N W-6 at 1 2 ppm <br /> However, the results of the laboratory report indicated that the chromatograms of TPH-d are not <br /> consistent with those of diesel characteristics <br /> Benzene was detected in soil samples collected from soil probe borings B-3, B-6, and wells MW-6, <br /> MW-9, VW-1 and VW-2 The highest concentration of benzene was reported in the 35-foot sample <br /> Ifrom VW-2 at 5 1 ppm, while the Iowest was reported in the 30-foot sample from VW-I at 0 0054 <br />