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• i ! TABLE 3 Analytical Results of Ground Water Samples - 07 February 2001 TOP FILLING STATION 101 South Wilson Way, Stockton, Cahfonua MW-1 MW-2 MW-3 MW-4 MW-5 VW-1B VW-1CVW-2A VW-2B VW-3A VW-3B 60 to 84 60 to 80 60 to 801 55 to 75 50 to 70 28 to 43 48 to 63 43 to 63 19 to 39 43 to 63 19 to 39 TPH-g 430 190 1,500 ND<50 4,300 220,000 190,000 100,000 49,000 63,000 ND<50 Benzene 15 41 400 051 220 23,000 27,000 27,000 13,000 6,700 ND<0 5 Toluene EPA 38 3 4 41 3 35 43,000 33,000 4,500 440 5,700 ND<0 5 8015M thylbenzene /8020 6 3 3 20 0 8 280 3,800 2,700 1 2,700 1,300 1,100 ND<0 5 Xylene 53 11 70 6 5 200 21,000 16,000 11,000 5,100 10,000 ND<0 5 MTBE 1,200 ND<5 86 ND<5 ND<00 ND<360 ND<800 ND<1000 ND<320 3,200 ND<5 MTBE 1,600 3 5 93 ND<1 ND<1 340 360 850 270 3,800 ND<1 DIPE ND<25 ND<1 ND<2 5 ND<l ND<1 ND<100 ND<100 ND<100 ND<10 ND<50 ND<1 TAME 130 ND<1 ND<2 5 ND<1 ND<1 ND<100 ND<100 ND<100 ND<10 ND<50 ND<l ETBE ND<25 ND<1 ND<2 5 ND<1 ND<1 ND<100 ND<100 ND<100 ND<10 ND<50 ND<1 TBA 82b A ND<125 ND<5 46 ND<5 110 ND<500 ND<500 ND<500 75 ND<250 ND<5 Methanol ND<5000 ND<200 ND<500 ND<200 ND<200 ND<20000 ND<20000 ND<20000 ND<500 ND<10000 ND<200 Ethanol ND<1250 ND<50 ND<125 ND<50 ND<50 ND<5000 ND<5000 ND<5000 ND<2000 ND<2000 ND<50 EDB ND<25 ND<1 ND<2 5 ND<1 ND<1 170 ND<100 ND<100 ND<10 ND<50 ND<1 1,2-DCA J ND<25 5 3 4 ND<1 ND<l 250 240 160 91 78 ND<l Notes All samples reported in micrograms per liter(ug4),TPH-g total petroleum hydrocarbons quantified as gasoline MTBE methyl tertiary butyl ether,DIPE di-isopropyl ether,TAME tert-amyl methyl ether,ETBE ethyl tert-butyl ether,TBA tert-butanol, 1,2-DCA 1,2-dichloroethane,EDB ethylene dibromide ND not detected,NA not analyzed < indicates constituents were not detected at concentration greater than the reporting lrnut shown well"dry"or not enough water in well to collect sample Advanced GeoEnvironmental,Inc 9