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r� <br /> SIERRA <br /> Table 3 Analytic Results for Ground Water-Volatile Organic Compounds - Chevron Service Station #9-6171, 6633 Pacific Avenue, Stockton, <br /> California (continued) <br /> EXPLANATION ANALYTIC LABORATORIES <br /> 1,2-DCA= 1,2-Dichloroethane APPL=Agriculture &Priority Pollutants Laboratories, Inc of Fresno, California <br /> 1,1-DCA= 1,1-Dichloroethane SAL= Superior Analytical Laboratory of San Francisco, California <br /> TCE=Trichloroethene GTEL = Groundwater Technology Environmental Laboratories Inc , of Concord, <br /> PCE=Tetrachloroethene Califon-da <br /> B =Benzene <br /> T=Toluene NOTES <br /> E =Ethylbenzene <br /> X=Xylenes Well has been dry since December 15, 1989 sampling event <br /> VOCs =VoIatile Organic Compounds 2 Chloroform detected at 14 ppb Other VOCs not detected at detection limits <br /> ppb Parts per billion of 0 5 to 1 0 ppb <br /> ND = Not detected 3 Not detected at detection limits of 0 5 to 1 0 ppb <br /> 4 Not detected at detection limits of 3 to 20 ppb <br /> ANALYTIC METHODS 5 BTEX concentrations included on Table 2 Other VOC's not detected at <br /> detection limits of 5 to 50 ppb <br /> 8240 =EPA Method 8240 for VOCs <br /> 624= EPA Method 624 for VOCs <br /> 14604T GWV <br />