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-r <br /> TABLE 2 <br /> Fuel Oxygenates Analytical Data <br /> Former ARCO Service Station No 2168 <br /> 441 Charter Way <br /> Stockton,California <br /> Well <br /> Sample TBA MTBE DIPS ETBE TAME 1,2-DCA Ethanol <br /> Number Date Erg/L pg/L pg/L pg/L prg/L Ng/L Erg/L <br /> Notes <br /> < = Below detection limit for analytical methods used <br /> 1,2-DCA = 1,2-Dichloroethane <br /> RIPE = DI-Isopropyl ether <br /> EtBE = Ethyl tertiary butyl ether <br /> MtBE = Methyl tertiary butyl ether <br /> NA = measurement not taken <br /> TAME = Tertiary amyl methyl ether <br /> TBA = Tertiary butyl alcohol <br /> ug/l = Analytical results in micrograms per liter <br /> [1] = 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 Irlterferents <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 <br /> analyte In the sample <br /> N The analysis indicates the presence of an analyte for which there is presumptive evidence to make a <br /> "tentative identification" <br /> NJ The analysis indicates the presence of an analyte that has been"tentatively identified"and the associated numerical <br /> value represents its approximate concentratson <br /> UJ The analyte was not detected above the reported sample reporting limit However the reported reporting limit is <br /> approximate and may or may not represent the actual limit of quantstatson necessary to accurately and precisely <br /> 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 /> k MprocessU5 1313 ARC010216610uarterllh4 QTR 0312168 GWIVIR 4003 6 of 6 <br />