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TAK 2 <br /> i <br /> GROUNDWATER ANALYTICAL RESULTS <br /> FOR OXYGENATES AND ADDITIONAL COMPOUNDS <br /> ARCO Service Station No. 5469 <br /> 130 South Wilson Way,Stockton,California <br /> i <br /> I <br /> USEPA USEPA <br /> Method 8260 Method 8015{M) <br /> Well TBA MTBE RIPE ETBE TAME 1,2-DCA EDB Ethanol Methanol <br /> Number Date lag/L ltg/L µg/L [tg/L pg/L ltg/L µg/L µg/L µg/L <br /> I <br /> NOTES: <br /> f pg/L=micrograms per liter. TBA=Tertiary butyl alcohol <br /> =Below detection limit for analytical methods used. MTBE=Methyl tertiary butyl ether. <br /> f <br /> A=Not Analyzed RIPE=Di-isopropyl ether. <br /> USEPA=U.S.Environmental Protection Agency. ETBE=Ethyl tertiary butyl ether. <br /> TAME=Tertiary amyl methyl ether. <br /> [1]This sample was analyzed outside of EPA recommended hold time. 1,2-DCA=1,2-Dichloroethane <br /> [2]The value reported exceeds the calibration curve but not the linear range. EDB=Ethylene dibromide <br /> [31 The reporting limits for this sample have been raised due to the high level of a target compound. <br /> [4]The reporting limits far this sample have been raised due to the high levels of non-target interferents. <br /> i <br /> [51 The continuing calibration standard was outside of the acceptance criteria. This should be considered in evaluating the result for its intended purpose. <br /> 5TRATUS <br /> Arco_5469_Quartcrly_0ata <br /> 6of6 <br />