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Table 2 <br /> Fuel Oxygenates Analytical Data <br /> Former ARCO Service Station No 2168 <br /> 441 W Charter Way, Stockton CA <br /> Well Date Ethanol TBA MtBE DIPS EtBE TAME 1,2-DCA EDB PCE Methanol Comments <br /> Number Sampled (pg1L} (f►g!L] (pglL} (pglL) (lrg1L} {Erg1L} (pg/L) (ErglL] (riglL} (ErglL} <br /> jrglL=Analytical results in micrograms per liter <br /> TBA=Tertiary butyi alcohol <br /> MTBE=Methyl tertiary butyl ether <br /> DIPE=Di-isopropyl ether <br /> ETBE=Ethyl tertiary butyl ether <br /> TAME=Tertiary amyl methyl ether <br /> 1,2-DCA=1,2-Dichloroethane <br /> EDB=Ethylene dibromide <br /> PCE=Tetrachloroethene <br /> <=Below detection limit for analytical methods used <br /> not measured or analyzed <br /> [i]This sample was analyzed outside of EPA recommended hold time <br /> [2]The reporting limit(s)for this sample have been raised due to high levels of non-target mterferents <br /> NA =Not analyzed <br /> Data Qualifier Definitions <br /> U=The analyte was analyzed for,but was not detected above the sample reporting limit <br /> J=The analyte was positively identified,the associated numerical value is the approximate concentration of the analyte in the sample <br /> N=The analysis indicates the presence of an analyte for which there is presumptive evidence to make a tentative identification <br /> NJ=The analysis indicates the presence of an analyte that has been tentatively identified and the associated numerical value represents its approximate concentration <br /> UJ=The analyte was not detected above the reported sample reporting limit However the reported reporting limit is approximate and may or may not represent the actual limit of quantitation <br /> necessary to accurately and precisely measure the analyte in the sample <br /> R=The sample results are rejected due to identification or other analytical issues <br /> ND=Not detected above reported detection limit <br /> I <br /> I <br /> Page 8 of 8 <br /> Report Date Apni 21,2004 <br />