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� s <br /> SIERRA <br /> 'I able 3 Analytic Results for Ground Water-Volatile Organic Compounds-Chevron Service Station#9-6171, 6633 Pacific Avenue, <br /> Stockton, Callforiva <br /> Well Date Analytic Analytic 12-DCA 1,1-DCA TCE PCE Other VOCs <br /> ID Sampled Lab Method <--------------------------- - -------------------ppb------------------------------------- -> <br /> MW-1' <br /> MW-2 3/14/91 APDL 8240 <0 5 <0 5 08 42 ND' <br /> MW 3 3/14/91 ADPL 8240 <0 5 <0 5 <0 5 05 ND" <br /> MW-4 3/14/9) APDL 8240 <0 5 <0 5 <0 5 850 ND' <br /> MW-5 9/5/90 SAL 624 <3 7 <3 <3 ND" <br /> 11/29/90 SAL 8240 11 <3 <3 4 ND" <br /> 3/14/91 SAL 8240 28 <3 <3 10 ND" <br /> 3/14/91 APDL 8240 26 <3 22 92 ND <br /> 6/6/91 SAL 8240 16 <3 <3 11 ND <br /> 8/29/91 SAL 8240 15 <3 <3 <3 ND <br /> 12/6/91 SAL 8240 68 <3 7 120 ND <br /> EXPLANATION ANALYTIC LABORATORIES <br /> 1,2-DCA= 1,2-Dichloroethane APPL= Agriculture&Pnonty Pollutants Laboratones Inc of Fresno, <br /> 1,1-DCA= 1,1-Diehloroethane California <br /> TCE=Trichloroethene SAL= Superior Analytical Laboratory of San Francisco California <br /> PCE=Tetrachloroethane. <br /> VOCs =Volatile Orgamc Compounds NOTES <br /> ppb =Parts per billion <br /> ND =Not detected i Well has been dry since December 15, 1989 sampling event <br /> x Chloroform detected at 1 4 ppb Other VOCs not detected at <br /> ANALYTIC METHODS detection limits of 3 to 20 ppb <br /> a Not detected at detection limits of 0 5 to 1 0 ppb <br /> 8240=EPA Method 8240 for VOCs 4 Not detected at detection limits of 3 to 20 ppb <br /> 624= EPA Method 624 for VOCs <br /> 146047 GWV <br />