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TABLE 2 <br /> Groundwater Laboratory Data <br /> 504 N. Aurora Way <br /> Chevron U.S.A./Carnation Plant <br /> Stockton, CA <br /> Results in Ng/f (ppb) <br /> DATE SAMDPLE BENZENE TOLUENE BENZENE TPHG i <br /> PHD <br /> ll <br /> 05/07/91 MW1 0 85 1 5 1 0 2 9 41 ND <br /> MW2 077 ND ND <br /> 036 31 II $4 <br /> MW3 ND ND ND ND ND ND <br /> i <br /> 06/21/91 MW1 ND ND ND ND ND ND <br /> MW2 ND ND ND ND ND f 68 <br /> MW3 ND ND ND ND ND ND <br /> 8122191 MW1 041 ND ND ND ND J ND <br /> , <br /> MW2 063 ND ND ND ND ND <br /> MW2 ND ND ND ND ND ND <br /> 02/18/92 MW1 ND ND ND ND 120 ND <br /> MW2 ND ND ND ND ND { ND <br /> MW3 ND ND ND ND ND ND <br /> 06/16/92 MW1 ND 0 6 ND 09 160 ND <br /> MW2 ND ND ND ND ND ND <br /> MCL'S 10 40 30 20 NA NA <br /> NOTES <br /> BTEX Analyzed by EPA method 8020/602 <br /> TPHG = Total Petroleum Hydrocarbons as Gasoline Analyzed by Modified EPA <br /> Method 8015 <br /> TPHD — Total Petroleum Hydrocarbons as Diesel Analyzed by Modified EPA <br /> Method 8015 <br /> ND — Compounds Not Detected Above Method Detection Limits <br /> NA = Not Available <br /> MCL's = Maximum Contaminant Levels, Water Quality Goals 1990, CA Regional <br /> Water Quality Control Board Central Valley Region <br /> • TABLES MRM <br />