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• � s <br /> 31-0308 <br /> Table 1 <br /> Summary of Results of Grand Yater Sampling <br /> Chevron Service Station #1 9-4275 <br /> 2905 West Benjamin Holt Drive, Stockton, California <br /> Concentrations in parts per billion (ppb) <br /> aaaaasaaaaasaaaaaaaaaaaaaaxasaazaaa=xassazaaaxaaaaaaaagaaasaasazaaaxasaaazcaa=xssaaaaaaa=aaasaaazaaaxaasaaazaaaaxsasaaazaa�assaaaazaaaxaaaaaaaaaa�xaaasaaaas= <br /> WELL DATEssaaOF TOP OF DEPTH GROUND TPH-G TOG B T E X DG DCB DCB DCB F113 TCE LAB <br /> ID SAKPLING/ CASING TO WATER <br /> MONITORING ELEVATION WATER ELEVATION <br /> aaaasaass=aaasa=assaasaaasaaaaazxaaaaaaaaaaaaasaaaaaaaza=saaaaaaaaaaaasaaaaaaaa=-aasaaaaaaaaaxa�fsazaaaaaaaaartaamaasesaaaaaasaa=aasaataaasagsesasasazasasaaasa=aazssaaa <br /> TB 03/22/89 NA NA NA ND<500 --- ND-c0.2 ND<0.2 ND<0.2 MD<O 4 ND<O.1 ND<O 2 --- -^^ ND<1 --- CCAS <br /> TB 06/12/89 NA NA NA ND<50 --- ND<0.2 ND<0.5 MD<0.1 ND<0.2 ND<D.1 ND<O.1 --- --- ND<0.5 --- CGS <br /> TB 09/07/89 NA NA MA ND<50 --- ND<1.0 ND<0.5 ND<0.1 ND<0.2 ND<0.1 ND<0.1 --- --- ND<0.5 --- CGS <br /> TB 12/18/89 NA NA NA ND<50 ... ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 - - PACE <br /> TB 03/20/90 NA NA MA ND<50 ND<O.5 ND<0.5 ND<0 5 ND<0.5 -ND<0.5 MD<0.5 -�_ ___ ND<0.2 FACE <br /> TB 07/03/90 NA NA NA ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- PACE <br /> TB 10/19/90 NA NA NA ND<50 ... ND<0.5 ND<0.5 ND<O 5 ND<0.5 •-- .__ _._ <br /> TB 01/17/91 NA NA NA MD<50 --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- -" --- SAL <br /> TB 03/19/91 NA MA NA --- --- -^- --- .._ -- --- :_ __. --- _._ ___ SAL <br /> TB 07/18/91 NA NA NA ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- - __. SAL <br /> TB 10/31/91 NA NA NA MD<50 --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 .._ --- __. ___ --- SAL <br /> TB 01/16/92 NA MA NA ND<50 --- ND<0.5 1.8 ND<0.5 ND<0.5 --- --- ... SAL <br /> TBSAL <br /> _-----06/2......-NA•-------........-�------•---ND<50--------------------------1-8-----........-�<0.5-..-----...------------------------.........------------..... <br /> EXPLANATION OF ABBREVIATIONS: <br /> TPM-G :Total Petroleum Hydrocarbons as Gasoline F113 :Freon 113 <br /> (EPA method 8015 modified) TCE :Trichloroethylene <br /> TOG :Total Oil and Grease (EPA method 5036 & 503E) --- :Not Analyzed/Not Measured <br /> B :Benzene (EPA method 8020 or 8240) D Duplicate <br /> T :Toluene (EPA method 8020 or 8240) NA :Not Applicable/hot Available <br /> E :Ethyibenzene (EPA method 8020 or 8240) NO .Not Detected <br /> X :Xylenes (EPA method 8020 or 8240) TB :Trip Blank <br /> 1,2-DCA:1, 2-Dichloroethene SAL :Superior Analytical Labs <br /> 1,2-DCB:1, 2-Dichlarobenzene CGS Central Coast Analytical Service <br /> 1,3-DCB:1, 2-Dichlorobenzene PACE :PACE Analytical laboratory <br /> 1,4-DCB:1, 2-Dichlorobenzene * :Does not match typical gasoline pattern <br /> Note. Top of casing and grand water elevations are expressed as feet above mean sea level (NGVD - 1929) <br /> I <br />