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TABLE 2-Continued <br /> GROUND WATER SAMPLE ANALYTICAL RESULTS <br /> Concentrations in rrucrograms per liter (,u-/L) <br /> Exxon Retail Station No 7-3708 <br /> 2705 Country Club Boulevard <br /> Stockton, Calitornia <br /> Monitonng Ethyl- Total TPH/TVH' <br /> Well Date Benzene Toluene henzene Xvlenes as •gasoline <br /> MW-7 05/31/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 08/30/94 <0 5 <0 5 <0 5 <05 <50 <br /> 11/22/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 01/12/95 <0 5 <0 5 <0 5 <0 5 <50 <br /> MW-8 05/31/94 <0 5 <0 5 <0 5 <05 <50 <br /> 08/30/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 11/22/94 <0 5 <05 <0 5 <0 5 <50 <br /> 01/12/95 <05 <05 <05 <05 <50 <br /> Total petroleum hydrocarbons/total volatile hydrocarbons <br /> Atypical chromatogram with unidentified peak(s) within the range of gasoline hydrocarbons Chlorinated <br /> hydrocarbons are suspected A around water sample collected from monitoring well MW-6 on <br /> Apnl 17, 1992, contained chlorobenzene and 1,2-dichlorobenzene <br /> Atypical chromatogram Analysts of this sample by EPA Method 624 on April 17, 1992 (past EPA <br />. recommended holding time),was positive for the following chlorinated hydrocarbons vtnylchlonde,cis-1,2- <br /> dichloroethene, trichloroethene and tetrachlorethene These peaks resulted in a positive fuel hydrocarbon <br /> result <br /> ° Atypical chromatogram Four unknown peaks were observed causing a positive fuel hydrocarbon result <br /> Chlormated hydrocarbons are suspected <br /> Atypical chromatogram An unknown peak was observed between MTBE and benzene Chlonnated <br /> hydrocarbons are suspected <br /> e Atypical chromatogram Analysis of this sample by EPA Method 624 on April 17, 1992 (past EPA <br /> recommended holding time)was positive for the following chlorinated hydrocarbons chlorobenzene and 1,2- <br /> dichlorobenzene <br /> = Result is an estimated value because it exceeds the linear range <br /> LRP544 TA <br />