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l V 1 07 February 2005 . AGE-NC Project No 03-1070 ' Page 3 of 4 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES ' TPH-g was detected in ground water samples collected from the wells at a maximum concentration of 38,000 micrograms per liter (µg/1) in well MW-2 BTEX compounds were detected in ground ' water samples collected from wells MW-I through MW-4 at maximum concentrations of 3,200µg/1 benzene (MW-3), 1,400 µg/1 toluene(MW-2), 840 µg11 ethylbenzene (MW-3) and 3,300 µg/1 total xylenes (MW-3), respectively MTBE was detected in ground water samples collected from wells MW-1 through MW-3 at a maximum concentration of 12,000 µg/1 in sample MW-2 1,2-DCA was detected in ground water ' sample collected from well MW-3 at a concentration of 70 µg/1 TAME was detected in ground water samples collected from wells MW-I through MW-4 at a maximum concentration of 50 µg/1 in well MW-2 " ' No other analytes were detected at or above laboratory detection limits in the ground water samples analyzed The analytical results of the ground water samples collected on 30 August 2004 are ' summarized in Table 2 A plane view map depicting the lateral extent of petroleum hydrocarbon contamination is illustrated on Figure 4 The laboratory report(CTEL Project No CT214-0408201), quality assurance/quality control (QA/QC) reports and chain of custody form are included in ' Appendix C Confirmation pages of the submitted laboratory electronic digital format (EDF) files and depth to water measurements are included in Appendix D 1 4.0. SUMMARY AND CONCLUSIONS ' Based on the data collected from the site, AGE concludes ' • The ground water elevations ranged from 19 99 feet to 20 29 feet below MSL Ground water flow was inferred to be flowing toward the southeast, away from the former UST area at an average gradient of 0 003 ft/ft ' • TPH-g and BTEX compounds were detected in ground water samples collected from wells MW-1 through MW-4 at maximum concentrations of 38,000 µg/1 TPH-g, 3,200 µg/1 ' benzene, 1,400 µg/1 toluene, 840 µg/1 ethylbenzene and 3,300 µg/1 xylenes • MTBE was detected in ground water samples collected from wells MW-I through MW-3 at a maximum concentration of 12,000 µg11 ' • 1,2-DCA was detected in the ground water sample collected from well MW-3 at 70 µg/l TAME was detected in the ground water samples collected from wells MW-1 through MW-4 ' at a maximum concentration of 50 µg/1 in well MW-2 i • Petroleum hydrocarbon-impact to groundwater is not defined in any direction However,the ' Advanced GeoEnvironmental,Inc