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30 June 1999 <br /> . AGE-NC Project No. 98-0468 <br /> Page'9 of 12 <br /> 1 <br /> 5.3.4. Fuel Oxygenating Compounds <br /> '. MTBE was detected in two of the eleven soil samples anal zed{Table 5). Reported concentrations <br /> P Y , <br /> of MTBE were only detected in soil samples collected from soil boring B-4 04W=4). MTBE was <br /> detected at concentrations of 65 Mg/kg and 110 gg/kg in soil samples collected at 17.5 and 20 feet <br /> bsg,-respectively. There were'no reported-detections of DIPE, ETBE, TAME, or TBA in any of-the <br /> soil'samples analyzed. <br /> 5A. ` GROUND WATER ANALYTICAL RESULTS <br /> A total of eight ground;water samples were collected at the site during the additional site assessment <br /> and ground water monitoring activities. Ground water samples were collected from soil borings B-1 - <br /> '' through.B73;and monitoring wells MW-1 through MW-5. Ground water.sample analytical results <br /> are summarized in Tables 6. The Iaboratory analytical report is included in Appendix D. Ground <br /> ' water sample analytical results are presented below. <br /> Is_ 5.4.1. Benzene, Toluene, Ethylbenzene, and Total Xylenes <br /> Toluene was the only BTEX constituent detected in any-of the ground water samples analyzed <br /> ' (Table.6). Toluene was only detected in the sample collected from monitoring well MW-2 at a <br /> concentration of 0.35 µg/1, which was slightly above the laboratory reporting limit of 0.3 µg/1. The <br /> reported detection of toluene was below the DHS-establish maximum contaminant level (MCL) for <br /> ' toluene of 150 µg/l. There were no report detections of BTEX constituents in any of the other <br /> samples analyzed. <br /> 5.4.2. Total Petroleum Hydrocarbons as Gasoline <br /> There were no reported detections of TPH-g in any of the ground water samples (Table,6). <br /> 5.4.3. Total Petroleum Hydrocarbons.as Diesel <br /> ' Concentrations of TPH-d were detected in two of the eight ground water samples analyzed (Table 6), . <br /> TPH-d was reported in samples B-2 and B-3 at concentrations of 570µg/1 and 130µg/1,respectively. <br /> There were no reported detections of TPH-d in,ground.water samples B-1,or MW-1 through MW-5., <br /> ' Advanced Geo Environmental,Inc. <br />