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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 pg/f (Ppb) <br /> DATE SAMPLE BENZENE TOLUENE ETHYL- XYLENES TPHG TPHD <br /> 10 BENZENE 11) (2) <br /> MW1 0 85 1 5 1 0 29 41 ND <br /> 05/07/91 MW2 077 ND ND 036 31 84 <br /> MW3 ND ND ND ND ND ND <br /> MW1 ND ND ND ND ND ND <br /> 06/21/91 MW2 ND ND ND ND ND 68 <br /> MW3 ND ND ND ND ND ND <br /> MW1 0 41 ND ND ND ND ND <br /> 08/22/91 MW2 0 63 ND ND ND ND ND <br /> MW2 ND ND ND ND ND ND <br /> DETECTION LIMITS 030 030 030 030 30 :�50 <br /> MW1 ND ND ND ND 120 ND <br /> 02/18/92 MW2 ND ND ND ND ND ND <br /> MW3 ND ND ND ND ND ND <br /> DETECTION LIMITS 050 0 50 050 050 50 100 <br /> MCL'S 1 0 40 30 20 NA NA <br /> NOTES <br /> i <br /> BTEX — Analysis by EPA method 8020/602 <br /> TPHG — Total Petroleum Hydrocarbons as Gasoline <br /> TPHD = Total Petroleum Hydrocarbons as Diesel <br /> (1) = Analysis by Modified EPA method 8015 <br /> (2) = Analysis by Modified EPA 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 /> i <br /> TABLES MAD <br />