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I TABLE 3 ANALYTICAL RESULTS OF GROUND WATER MONITORING WELL SAMPLES PACIFIC CAR WASH 4405 Pacific Avenue, Stockton, California {µfill) Well I D Ethyl- MTBE MTBE (screen Date TPH-g Benzene Toluene benzene Xylenes 8020 8260 DIPS ETBE TAME TBA 1,2-DCA EDB Interval 11-25-03 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 - 31 ND<0 5 ND<0 5 ND<0 5 ND<20 ND<0 5 095 MW-19A 06-01-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 27 28 ND<0 5 ND<0 5 ND<0 5 ND<20 21 ND<0 5 (62-67) 09-29-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 6 - 51 ND<l ND<l ND<1 ND<10 ND<0 5 ND<0 5 12-08-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 6 - ND<l ND<1 ND<1 ND 11-25-03 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<20 ND<0 5 ND<0 5 MW-19B 06-01-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<20 ND<0 5 ND<0 5 (79-84) 09-29-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 6 - ND<1 ND<1 ND<1 ND<l ND<10 ND<0 5 ND<0 5 112-08-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 6 - ND 11-25-03 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<20 ND<0 5 ND<0 5 MW-19C 06-01-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<20 ND<0 5 ND<0 5 (95-100) 09-29-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 6 ND<l ND<1 ND<l ND<1 ND<10 ND<0 5 ND<0 5 12-08-04 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 6 - ND<l ND<1 ND<1 ND<l ND<10 ND<0 5 ND<0 5 Notes ggll micrograms per]iter or parts per billion TPH-g total petroleum hydrocarbons quantified as gasoline MTBE methyl tertiary butyl ether DIPS di-isopropyl ether ETRE (.thy]tertiary butyl ether TAME tertiary amyl methyl ether TBA tertiary butanol alcohol 1,2-DCA 1,2-dichloroethane EDB ethylene dibromide ND not detected R bsg feet below surface grade t unmodified or weakly modified gasoline is significant i Advanced GeoEnvrronmental