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1 <br /> 10 April 2003 <br />' AGE-NC Project No 99-0559 <br /> Page 6 of 8 <br />' HU3 and HU4 <br /> TPH-g was detected in samples MW-5B and MW-7B at concentrations of 820 µg/l and 2,100 µg11, <br />' respectively BTEX compounds were detected at maxunum concentrations of 250 µg/1 benzene, <br /> 400 µg/1 toluene, 36 pg/1 ethylbenzene and 194 µg/1 xylenes, in sample MW-7B MTBE was <br /> detected in samples MW-5B and MW-7B at 980µg/1 and 110µg/1,respectively In addition,TAME <br /> was detected at 5 5 µg/l (MW-5B), and TBA was detected at 160 µg/1 (MW-6B) <br /> r1JU5 - Upper <br /> TPH-g was detected in samples MW-7C and MW-8C at concentrations of 31,000µg/1 and 740µg/l, <br /> respectively BTEX compounds were detected in all samples except MW-5C at maximum <br /> concentrations of 8,000 µg/1 benzene, 7,000 µg/1 toluene, 520 µg/1 ethylbenzene and 3,170 µg/1 <br /> xylenes MTBE was detected in samples MW-5C and MW-7C at concentrations of 21 pg/1 and <br /> 3,200 µg/1, respectively In addition, the fuel additives ETBE, TBA and 1,2-DCA were detected in <br /> sample MW-7C at concentrations of 32 pg/1, 210 µg/1 and 8 1 µg/l, respectively <br /> I � , <br /> HU5 -Lower <br /> TPH-g was detected in samples MW-61)and MW-7D at concentrations ofran n between 4 0 <br /> � g 6 pg/l <br /> and 1,100 pg1l, respectively BTEX compounds were detected in samples MW-6D and MW-7D at <br /> maximum concentrations of 98 pg/l, 210 µg/l,25 µg/1 and 63 4g/l,respectively,in sample MW-71) <br /> MTBE was detected in samples MW-5D and MW-61) at concentrations of 22 µg/1 and 21 µg/1, <br /> respectively In addition, TBA was detected in sample MW-61) at 1 i µg/1 <br /> HU6 <br /> TPH-g was detected at a concentration 1,200 µg/1 in sample MW-7E BTEX compounds were <br /> detected in samples MW-6E and MW-7E at maximum concentrations of 69 pg/l, 140 pg/l, 11 µg/1 <br /> and 41 µg/1, respectively, In sample MW-7E MTBE and other fuel additives were not detected <br /> f The analytical results of current as well as historical ground water samples are summarized in <br /> Table 2 Iso-concentration maps displaying the estimated distribution of dissolved benzene and <br /> MTBE in each hydrologic units are depicted in Figures 8 through 12 The laboratory reports(CTEL <br /> I D nos 0301-063-1 to -3 and -24), quality assurance and quality control (QA/QC) reports and <br /> chain-of-custody forms are included in Appendix B <br /> Advanced GeoEnvironmental,Inc <br /> I <br />