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i <br /> TABLE 4 <br /> • ANALYTICAL RESULTS OF GROUND WATER SAMPLES - APRIL & MAY 1999 <br /> EPA METHODS 8015M, 8020 <br /> Former Chase Chevrolet (Van Buren) Facility <br /> 424 North Van Buren Street, Stockton, California <br /> ('Ug/1) <br /> Sample TPH as MTBE Benzene Toluene Ethyl Xylene <br /> Location Gasoline benzene <br /> SW4 4,300 <10 260 26 180 830 <br /> S W9 <50 <5 0 <0 5 <0 5 <0 5 <0 5 <br /> ISW11 150,000 <900 5,000 27,000 4,700 25,000 <br /> ISW20 1,100 <10 0.55 <0 5 0.97 93 <br /> S W23 82 <5 0 0.74 <0 5 <0 5 <0 5 <br /> MW-3 190,000 <1,000 13,000 50,000 4,100 23,000 <br /> MW-6 2,100 <5 0 76 3.7 170 160 <br /> MW-7 1,900 <10 40 7.0 9.8 180 <br /> MW-9 11,000 <100 100 110 840 1,500 <br /> MW-10 <50 <5 0 1.1 4.0 1.1 5.1 <br /> MW-14 410 <5 0 8.3 44 18 81 <br /> IMW-15 320 <5 0 9.0 42 14 65 <br /> MW-16 320 <5 0 11 45 15 63 <br /> MW-17 330 <5 0 11 1 47 15 67 <br /> ue micrograms per Mor equivalent to parts per billion(ppb) <br /> I <br /> Advanced CeoEn%trontnental,Inc <br /> I <br />