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Table 1 -Sail Chemical Analytical Data <br /> Former Unocal Station No 0123 <br /> 1034 Central Avenue <br /> Tracy,California <br /> Sample TBA MtBE DIPE ETBE TAME Ethanol 1,2-DCA EDB Methanol <br /> No (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) <br /> Groundwater Monitoring Well U-7 <br /> U-7-11 <10 0 <0 100 <0 100 <0 100 <0 100 <150 <0 100 <0 100 <I 00 <br /> U-7-16 <10 0 <0 100 <0 100 <0 100 <0 100 <150 <0 100 <0 100 <1 00 <br /> U-7-21 <10 0 <0 100 <0 100 <0 100 <0 100 <150 <0 100 <0 100 <1 00 <br /> Groundwater MonitortnL7 Well U-8 <br /> U-8-11 <10 0 <0 100 <0 100 <0 100 <0 100 <150 <0 100 <0 100 <I 00 <br /> U-8-16 <10 0 <0 100 <0 100 <0 100 <0 I00 <150 <0 100 <0 100 <1 00 <br /> U-8-21 <10 0 <0 100 <0 100 <0 100 <0 100 <150 <0 100 <0 100 195 <br /> Explanation, Analytical Method <br /> TBA=Tert-butyl alcohol Oxygenates except Methanol by EPA Method 8260A <br /> MtBE=Methyl tert-butyl Ether 1,2-DCA&EDB by EPA Method 8260A <br /> DIPE=DE-isopropyl ether Methanol by EPA Method 8015(modified) <br /> ETBE=Ethyl tert-butyl ether <br /> TAME=Tert-amyl methyl ether Analytical Laboratory <br /> 1,2-DCA=1,2-Dichloroethane Sequoia Analytical(ELAP#2374) <br /> EDB=Ethylene dibromide <br /> ppm=Parts per million <br /> 240073 05 <br />