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+ t I19 January 2005 . AGE-NC Protect No 00-0769 ` IPage 4of7 11 1 J 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES I , During the August and September 2004 sampling event, 31,ground water samples were collected from HU-1 through HU-5 and submitted for laboratory analysis for the constituents listed in ' Section 2 2 Analytical laboratory results are summarized in Tables 2 through 5 The lateral extent of petroleum hydrocarbon-impacted ground water forHU-1 through HU-5 is illustrated on Figures 7 through 11, respectively ' HU-1 Ground water samples from wells MW-1, MW-2B, MW-3B, and "A" wells MW-4A through ' MW-9A, were collected from HU-1 (25 feet to 51 feet bsg) TPH-g was detected in all ground water samples except MW-8A and MW-9A at concentrations ' ranging from 240,000 micrograms per liter (µgd) in well MW-1 to 320 pg/1 In well MW-6A ` (Figure 7) BTEX compounds were detected in all samples except MW-8A and MW-9A at concentrations ranging from 29,000 pgd (MW-1) to 21 pg/l (MW-6A) benzene, 87,000}Ig/l (MW-1) to 2 9 µg/1 (MW-6A)toluene,6,800`pg/l(MW-1)to 2 8 pg/l(MW-6A)ethylbenzene,and 37,000 p.g/1(MW-1) to 19 3 pg/1 (MW-6A) total xylenes ' The fuel additive 1,2-DCA was detected in samples from wells MW-1, MW-2B, MW-3B, and MW-4A through MW-6A at concentrations ranging from 1,800 µg/l(MW-1)to 7 7 µg/1(MW-6A) DIPE was detected in the samples from wells MW-1, MW-2B, and MW-5A at concentrations ' ranging from of 23 pg/l(MW-2B)to 5 21Ig/1(MW-1) TAME was detected in ground water samples collected from wells MW-213, MW-4A, and MW-5A at concentrations ranging from 35 µg/1 (MW-4A) to 24 µg/1 (MW-5A) HU-2 1 ` __ Ground water samples from wells MW-2A,MW-3A,and"B"wells,MW-4B through MW-9B,were collected from HU-2 (112 feet to 125 feet bsg) ' ,TPH-g was detected,in all ground water samples except MW-2A, MW-8B, and MW-9B at concentrations ranging from 24,000 pg/l (MW-3A) to 550 gg/l (MW-7B) 1 ' Advanced GeoEnvironmental,Inc 1