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31 April 2006 <br /> AGE-NC Project No 97-0326 <br /> Page 4 of 6 <br /> HU2 -TPH-g and BTEX compounds were detected in samples MW-8B and MW-9B at maximum <br /> concentrations of 21,000 gg/l TPH-g,4,900 gg/l benzene, 340 µg11 toluene,280 µg/1 ethylbenzene, <br /> and 980 µg/l xylenes (sample MW-913) <br /> The fuel additives DIPE, TAME, and 1,2-DCA were detected in samples MW-8B and MW-9B at <br /> maximum concentrations of 43 gg/l (MW-9B), 39 gg/l (MW-8B), and 66 gg/l (MW-913), <br /> respectively <br /> HU4-TPH-g and BTEX compounds were detected in samples MW-8C and MW-9C,the maximum <br /> concentrations were 4,000 gg/l TPH-g (MW-8C), 1,200 µg/1 benzene (MW-9C), 77 gg/l toluene <br /> (MW-9C), 110 µg/1 ethylbenzene (MW-8C), and 1,450 gg/1 xylene (MW-8C) <br /> The fuel additives DIPE, TAME and 1,2-DCA were detected in samples MW-8C and MW-9C at <br /> maximum concentrations of 12 µg/1, 40 µg/l and 22 gg/l, respectively, in sample MW-9C MTBE <br /> was detected in MW-8C at a concentration of 48 µg11 <br /> HU6-TPH-g and BTEX compounds were detected in samples MW-8D and MW-9D,the maximum <br /> concentrations were detected in sample MW-91) at 1,000 µg/1 TPH-g, 130 gg/l benzene, 51 µg/l <br /> • toluene, 42 gg/1 ethylbenzene, and 176 gg/l xylenes <br /> The fuel additive DIPE was detected in sample MW-813 at a concentration of 3 2 µg/l, and the fuel <br /> additives TAME and 1,2-DCA was detected in samples MW-8D and MW-91) at maximum <br /> concentrations of 5 6 gg/l and 4 4 µg/1, respectively (MW-9D) <br /> No additional analytes were detected at or above the laboratory reporting limits in the samples <br /> analyzed Analytical results are summarized in Table 2 The laboratory report (CTEL Project No <br /> CT214-0603066),quality assurance/quality control report,and chain of custody forms are presented <br /> in Appendix C Documents confirming the upload of laboratory electronic deliverable format(EDF) <br /> files and depth to water measurements to GeoTracker are provided In Appendix D <br /> 4.0. SUMMARY AND CONCLUSIONS <br />' The following conclusions were drawn from the results of this investigation <br /> • The ground water elevations on 10 March 2006 ranged from 20 05 feet to 20 97 feet below <br /> MSL,the net flow direction of first-encountered ground water was inferred to be toward the <br /> south at a gradient of approximately 0 003 ft/ft, which is consistent with the historical flow <br />' direction at this site <br /> • TPH-g and BTEX compounds were detected in ground water samples collected from all <br /> Advanced GeoEnvironmental,Inc <br />