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Table 2 <br /> Fuel Oxygenates Analytical Data <br /> ARCO Service Station No 2130 <br /> 7906 N EL Dorado Street, Stockton, CA <br /> Well Date Ethanol TBA MtBE DIPL EtBL TAME 1,2-DLA EDB PCL Meth�L of Comments <br /> Number Sampled (pg1L) {pglL) {{►g1L) (p9 ) {Erg ) (P9 } lk9 } (pg/L) Wg } Wg } <br /> TBA=Tertiary butyl alcohol <br /> MtBE=Methyl tert-butyl ether <br /> OPE=Di-isopropyl ether <br /> ETBE=Ethyl tert-butyl ether <br /> TAME=Tert-amyl methyl ether <br /> 1,2-DCA=1,2-Dichloroethane <br /> EDB=Ethylene dibromide <br /> PCE=Tetrachloroethene <br /> pg/L=micrograms per liter <br /> c=Below detection limit for analytical methods used <br /> —=not measured or analyzed <br /> NA=Not analyzed <br /> *Reporting limits raised due to matrix effects andlor other factors <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 mayor 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 refected due to identification or other analytical issues <br /> NO=Not detected above reported detection limit <br /> Page 10 of 10 <br /> Reporf Date May 12,2004 <br />