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Zi 0 0 <br /> Table 2 Analytic Results for Groundwater-Volatile Organic Compounds-Chevron Service Station 1l9-6171,6633 Pacific Avenue, Stockton, California <br /> (continued) <br /> EXPLANATION ANALYTIC LABORATORIES <br /> 1,2-DCA = I,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,Caltfornta <br /> TCE =Trichloroethene GTEL = Groundwater Technology Environmental Laboratories, Inc ,of Concord, Caltforma <br /> PCE =Tetrachloroethens SEQ = Sequoia Analytical Laboratories of Redwood City,California <br /> B = Benzene <br /> T =Toluene NOTES <br /> E= Ethylbenzene <br /> X = Xylenes i Well has been dry since December 15, 1989 sampling event <br /> VOCs = Volatile Organic Compounds 2 Chloroform detected at 14 ppb Other VOCs not detected at detection limits of 0 5 to 10 ppb <br /> ppb = Paha per billion 3 Not detected at detection limits of 0 5 to 10 ppb <br /> ND = Not detected 4 Not detected at detection limits of 3 to 20 ppb <br /> BTEX concentrations included on Table 2 Other VOC's not detected at detection limits of 5 to 50 ppb <br /> ANALYTIC METHODS 6 All other VOC's were non-detectable with detections limits ranging from 40 to 200 ppb <br /> 7 All other VOC's were non-detectable with detection limits ranging from 100 to 700 ppb <br /> 8240 = EPA Method$240 for VOCs ' All other VOC's were non-detectable with detection limits ranging from 22 to 110 ppb <br /> 624 = EPA Method 624 for VOCs ' Volatile Tentatively Identified Compounds not present at estimated detection limits of 100 ppb Positive <br /> identification or specification between isomers cannot be made without retention time standards <br /> 1° Volatile Tentatively Identified Compounds not present at estimated detection limits of 250 ppb Positive <br /> identification or specificatton between isomers cannot be made without retention time standards <br /> " Volatile Tentatively Identified Compounds not present at estimated detection limits of 56 ppb Positive <br /> identification or specification between isomers cannot be made without retention tune standards <br /> 5121VOC TQM <br />