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i • • <br /> CAMB RIA <br /> Table 1. Fuel Oxygenates,Shell-branded Service Station,6131 Pacific Avenue,Stockton California <br /> Sample Date Ethanol Methanol TBA MTBE D1PE ETBE TAME <br /> (ugrl) (ul/l) (µgel) (ugll) (µg/1} (k811) (µgfl) <br /> VEW-2 09-Oct-97 <500 <1,000 <100 <20 <20 <2 0 <2 0 <br /> VEW-2 10-Feb-98 <50,000 <5,000 <10,000 <200 <200 <200 <200 <br /> VEW-2 20-May-98 NA NA <20,000 <400 <400 <400 <400 <br /> VEW-2 29-Jul-98 <71,500 NA <14,300 <286 <286 <286 <286 <br /> VEW-2 23-Nov-98 NA NA <10,000 <200 <200 <200 <200 <br /> VEW-2 24-Feb-99 <150,000 <10,000 <10,000 <100 <100 <100 <100 <br /> VEW-2 13-May-99 <62,500 <1,000 <12,500 <125 <125 <125 <125 <br /> VEW-2 20-Aug-99 <20,000 <1,000 <4,000 636 <40 0 <40 0 <40 0 <br /> VEW-2 16-Aug-00 NA NA <400 228 <20 0 <20 0 <20 0 <br /> VEW-2 30-Aug-01 NA NA <250 <25 <25 <25 <25 <br /> Abbreviations and Notes <br /> TBA= Certiary butyl alcohol or tertiary butanol <br /> MTBE_=Methyl ternary butyl ether <br /> DiPE_Di-isopropyl ether <br /> ETBE Ethyl ternary butyl ether <br /> TAME =Tertiary amyl methyl ether <br /> Methanol by EPA 8015(Modified) <br /> All other analyses by EPA Method 8260 <br /> µg11=Micrograms per liter(parts per billion) <br /> NA=Not analyzed <br /> <x=Not detected at detection limit x <br /> 0854 Page 4 of 4 <br />