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CAMB RIA <br /> Table 1 Additional Groundwater Analytical Data,Shell-branded Service Station,2494 East Fremont Street,Stockton,CA <br /> Sample Date Ethanol TBA DIPE EDB 1,2-DCA ETBE TAME Methanol <br /> (Ft1/L) (A L) (AgIL) (u /L) (u L) ( /L) (g L) (k L) <br /> S-1 22-Nov-99 <100,000 <20,000 <200 NA NA <200 <200 NA <br /> S-2 11-May-98 <500 <100 <2 0 NA NA <2 0 <2 0 <1000 <br /> S-3 I I-May-98 <500 <100 <2 0 NA NA <2 0 <20 <1000 <br /> S-4 18-Feb-00 <100 <20 0 127 <0 500 123 <1 00 <1 00 <1000 <br /> S-4 03-May-00 <1000 <100 773 <2 00 806 <2 00 <2 00 NA <br /> S-4 02-Aug-00 NA <20 0* 7 16* <1 00* 7 50* <1 00* <1 00* NA <br /> S4 20-Nov-00 NA <5 0 90 <0 50 10 <0 50 <0 50 NA <br /> S-4 05-Feb-01 NA <200 852 <2 00 <2 00 <2 00 <2 00 NA <br /> S-4 14-May-01 NA <50 820 <0 50 90 <0 50 <0 50 NA <br /> S-4 30-Aug-01 NA <50 70 <2 0 12 <2 0 <2 0 NA <br /> Abbreviations and Notes <br /> NA=Not analyzed or not available <br /> <x=Not detected at method detection limit of x <br /> µgIL=Micrograms per liter(parts per billion) <br /> *=Sample analyzed outside of EPArecommended hold time <br /> Ethanol,Tertiary butyl alcohol(TBA), di-isopropyl ether(DIPE), ethylene dibromide(EDB),1,2-Dichloroethane(1,2-DCA), <br /> ethyl tertiary butyl ether(ETBE),and tertiary amyl methyl ether(TAME)by EPA Method 8260A <br /> Methanol analysis by EPA Method 8015(Modified) <br /> I <br /> 0797 Pagel of 1 <br />