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0 •5of5 `. <br /> Table 2 <br /> Fuel Oxygenates Analytical Data <br /> ARCO Service Station#1595 <br /> 6100 N Highway 99 Stockton CA <br /> Well Date TBA MtBE RIPE E1BE TAME t 2 DCA EDB Ethanol <br /> Number Sampled (ppb) (Ppb) (ppb) (ppb) (ppb) (ppb) (Ppb) (Ppb) <br /> WSW 117212000 <50 <10 <2 0 <2 0 <2 0 <2 0 -20 <br /> 315/2001 <200 <2 00 <2 00 <2 00 <2 00 <2 00 <2 00 — <br /> 51812004 <200 <2 00 <2 00 <2 00 <2 00 <2 00 <2 00 <br /> 811/1001 <200 <20 <2 0 <2 0 <20 <2 0 <2 0 » <br /> 10!2312001 <100 <10 <10 <10 <10 <10 <10 <br /> 2111.1002 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 411112()02 <5 0 <0 50 <0 50 <0 5o <0 50 <0 50 <0 50 — <br /> 7/16/2002 <5 0 <0 50 <0 50 <0 50 <0 so <0 50 <0 50 <50 <br /> 1012!2002 <20 <0 50 450 <0 50 <0 50 <0 50 <0 50 140 <br /> 1!1712003 <20 <0 s0 <0 So <0 50 <0 50 <0 50 <0 50 <40 <br /> 4JW2003 <20 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <100 <br /> 7/12/2003 <20 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <100 <br /> 10/2/2003 <20(a b) <0 50(b) <0 50(b) <0 50(b) <0 50(b) <0 50(b) <0 50(b) <100(b) <br /> 119=04 <20 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <100 <br /> 41212004 <5 0 081 <0 50 <0 50 <0 50 <0 50 <0 5o <100 <br /> 7/212004 <5 0 0 57 <I)m <0 50 <0 50 <0 50 <0 50 <100 <br /> ACTS 10/272003 <20(a b) <0 50(b) <0 50(b) <0 50(b) <O 50(b) <0 50(b) <0 50(b) <100(b) <br /> 119/2004 — — — — — — — <br /> 7/2/2004 — <0 50 <br /> TBA=Tart butyl alcohol 12 DCA=1 2-Dichloroethane <br /> ME=Methyl terl-butyl ether EDB=Ethylene dibromide <br /> DIPE=DiAsopropyl ether ppm=parts per million <br /> ESE=Ethyl tart-butyl ether ppb=parts per billion <br /> TAME=Tert-amyl methyl ether WSW-Water supply well <br /> <=below given laboratory detection Omt <br /> (a)=The result was reported with a possible high bias due to the continuing calibration venflration falling outside acceptance criteria <br /> (b)Sample analyzed beyond reconmended hold Ume mutts still may be used For their intended purpose <br /> Pro)ects4ARCO1595lReports13Q04gwlabfes595 As <br />