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5 <br /> 13 July 2004 <br /> AGE-NC Project No 00-0769 <br />' r Page 4 of 7 <br /> 3 2 ANALYTICAL`RESULTS OF GROUND WATER SAMPLES <br /> 1 <br /> -During the February 2004 sampling event, ground water samples from 31 monitoring points were <br />' collected from HU-1 through HU-5 and submitted for laboratory analysis for the constituents listed ' <br /> In Section 2 2 Analytical laboratory results are summarized in Tables 2 through 5 The lateral extent <br /> of petroleum hydrocarbon-Impacted ground water for HU-1 through HU-5 is illustrated In Figures <br />' 7 through 11, respectively <br /> HU-1 <br /> Ground water samples from wells MW-1, MW-2B, MW-3B, and "A" wells, MW-4A through <br />' MW-9A, were collected from HUI (25 to 51 feet bsg) ' <br /> S <br /> TPH-g was detected In all ground water samples except MW-8A and MW-9A at concentrations <br />' ranging from 330 micrograms per liter (µg/1) in well MW-6A to 220,000 gg/l In well MW-1 <br /> (Figure 7) <br /> lie BTEX compounds were detected in all samples except MW-8A and MW-9A,ranging from 32 gg/l a <br /> (MW-7A) to 22,000 pg/l (MW-1) benzene, 8 0 gg/l (MW-6A) to 34,000 gg/l (MW-1) toluene, <br /> 3 9 gg/l(MW-6A)to 2,000 gg/l(MW-1)ethylbenzene and 28 gg/1(MW-6A)to 10,400µg/l(MW-1) <br /> total xylenes <br /> The fuel additive 1,2-DCA was detected in samples from MW-1, MW-2B, MW-4A, MW-5A and <br />' MW-6A, with concentrations ranging from 7`4 µg/1 (MW-6A) to 1,700 µg/1 (MW-1) DIPE was - r <br /> detected in the samples from MW-2B`and MW-5A,at concentrations of 11 µg/1 and 8 8 µg/l, <br />' respectively <br /> r� <br /> HU-2 <br /> Ground water samples from wells MW-2A,MW-3A,and"B"wells,MW-4B through MW-9B,were <br />' collected from HU-2 (112 to 125 feet bsg) ' <br /> TPH-g was detected in all ground water samples except MW-2A, MW-8B and MW-9B, at <br />' concentrations ranging from 320 µg/l (MW-5B) to 23,000 gg/l (MW-3A) - <br /> Various BTEX compounds were detected in all,samples except MW-2A, MW-8B and MW-9B, at <br />' concentrations ranging from 25 µg/1(MW-7B)to 2,400 gg/l (MW-3A)'benzene, 15 µg/l (MW-7B) <br /> to 390 gg/l(MW-4B)toluene,4 6 pg/1(MW-5B)to 110 µg/l(MW-3A)ethylbenzene and 19 6 µg/1 <br /> (MW-5B) to 2,180 µg/l (MW-3A) total xylenes <br /> i Advanced GeoEnvironmental,Inc <br /> F <br />