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TABLE 6 ANALYTICAL RESULTS OF GROUND WATER MONITORING WELL SAMPLES - 31 MARCH TO 01 APRIL 2005 RAINWATER CAR WASH 420 West Yosemite Avenue, Manteca, Califomla ([Lg/1) I Analyte and Method MW-12A MW-12B MW-12C MW-12D MW-12E MW-12F I MW-13A MW-13B MW-13C MW-13D MW-13E MW-13F 30 to 35 60 to 65 85 to 90 1115tol2O W to 145 165 to 17030 to 35 60 to 65 85 to 90 115 to 120 140 to 145 165 to 170 TPH-g $0PA 100 600 400 290 ND<50 ND<50 ND<50 ND<50 160 100 ND<50 ND<50 Benzene 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<0 5 ND<0 5 ND<0 5 Toluene 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<0 5 ND<0 5 ND<0 5 Ethyl- 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<0 5 ND<0 5 ND<0 5 benzene Xylenes ND<0 6 ND<0 6 ND<0 6 ND<0 6 ND<0 6 ND<0 6 ND<0 6 ND<0 6 ND<fl 6 ND<0 6 ND<0 6 ND<0 6 MTBE ND<1 14 ND<1 ND<1 ND<l ND<t ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 D1PE EPA ND<1 ND<1 ND<1 ND<1 ND<l ND<1 ND<1 ND<1 ND<l ND<1 ND<l ND<1 TAME 8260B ND<1 ND<l ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND ETBE ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND<l ND<1 ND<1 TBA ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 ND<10 1,2-DCA 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<0 5 ND<0 5 ND<0 5 EDB ND<0 5 ND<0 5 ND<fl 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<0 5 TCE 2.1 17 1l- 68 ND<1 ND<1 ND<1 1 31 87 3.4 ND<1 ND<1 PCE l 110 570 400 280 1 20 13 13 46 140 120 5 7 3 2 Notes , µg/1 micrograms per liter ETBE ethyl tertiary-butyl ether _ sample not analyzed TBA tertiary butanol TPH-g total petroleum hydrocarbons quantified as gasoline 1,2-DCA 1,2-dichloroethane MTBE + methyl tertiary-butyl ether EDS ethylene dtbromide D1PE di-isopropyl ether TCE trichloroethene TAME tertiary-amyl methyl ether PCE tetrachloroethene Advanced GeoEnvnronmental,Inc r