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i <br /> TABLE 3 SUMMARY OF CONCENTRATIONS (ug/L) OF DISSOLVED HYDROCARBON <br /> CO WI'IUENIS IN THE t3ROUN)WATER AT F01'WM CHEVRON SS 9-7780, <br /> STOCKTM, CALIFORNIA, 1987-1990 <br /> Total <br /> Well Ethyl- Petroleum <br /> No. Date Benzene Toluene benzene Xyleneo s <br /> MWl 03/19/87 272.2 19.3 12.6 155 791 <br /> 02/18/88 <0.5 <1 <1 7 90 <br /> 03/22/89 not sampled - no water <br /> 06/21/89 not sampled - no water <br /> MW2 03/19/87 835.4 305 77.3 451.3 2,399 <br /> 02/18/88 2 <1 <1 <1 250 <br /> 03/22/89 not sampled - no water <br /> 06/21/89 not sampled - no water <br /> MW3 03/19/87 83.8 6.5 12.5 94.2 327.6 <br /> 02/113/88 8 <1 <1 8 250 <br /> 03/22/89 not sampled - no water <br /> 06/21/89 not sampled - no water <br /> EM 02/18/88 <0.5 <1 <1 <1 90 <br /> 03/22/89 <0.2 <0.2 <0.2 <0.2 <250 <br /> 06/21/89 <0.5 <0.5 <0.5 <0.5 1250 <br /> EA2 02/18/88 0.7 2.5 <1 2 <50 <br /> 03/22/89 not sampled - no water <br /> 06/21/89 not sampled - no water <br /> EA3 02/18/88 <0.5 <1 <1 <1 <50 <br /> 03/22/89 <0.2 <0.2 <0.2 <0.2 <250 <br /> 06/21/89 <0.5 <0.5 <0.5 <0.5 <250 <br /> EM 02/18/88 <0.5 <1 0.2 0.4 <50 <br /> 03!22/89 <0.2 0.2 <0.2 <0.2 <250 <br /> 06/21/89 <0.5 <0.5 <0.5 <0.5 <250 <br /> FAS 08/17/90 <0.5 <0.5 <0.5 <0.5 <50 <br /> EA6 08/17/90 <0.5 <0.5 <0.5 <0.5 <50 <br /> c67/97780/t3 <br />