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0 <br /> CAMBRIA <br /> Table 1 Additional Groundwater Analytical Data,Shell-branded Service Station,2494 East Fremont Street,Stockton,California <br /> Sample Date Ethanol TBA DIPE EDB 1,2-DCA ETBE TAME Methanol <br /> (A811) (Ag/1) (ug1l) ( ) (u d) (u A) (ugA) (ttg1l) <br /> S-1 22-Nov-99 <100,000 <20,000 QAO NA NA <200 <200 NA <br /> S-1 28-Nov-01 <500 <500 <50 NA NA <50 <50 NA <br /> S-2 11-May-98 600 <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 <2 0 <1000 <br /> S-4 18-Feb-00 <100 <20 0 12 7 <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* <100* 7 50* <1 00* <1 00* NA <br /> S-4 20-Nov-00 NA <5 0 9 0 <0 50 10 <0 50 <0 50 NA <br /> S-4 05-Feb-01 NA <200 8 52 <2 00 <2 00 <2 00 <2 00 NA <br /> S-4 14-May-01 NA <5 0 820 <0 50 9 0 <0 50 <0 50 NA <br /> S-4 30-Aug-01 NA <50 7 0 <2 0 12 <2 0 <2 0 NA <br /> S-4 28-Nov-01 <500 <50 7 3 <2 0 10 <2 0 <2 0 NA <br /> S4 18-Feb-02 NA <50 5 3 <2 0 83 <2 0 <2 0 NA <br /> S-4 01-May-02 NA <50 6 9 <2 0 140 <2 0 <2 0 NA <br /> Abbreviations and Notes <br /> NA=Not analyzed <br /> <x=Not detected at detection limit of x <br /> 1ig1l=Micrograms per liter(parts per billion) <br /> *=Sample analyzed outside of EPA recommended hold time <br /> Ethanol,Tertiary butanol(TBA), di-isopropyl ether(DIPE), 1,2-Dlbromoethane(EDB), 1,2-Dichloroethane(1,2-DCA), <br /> ethyl tertiary butyl ether(ETBE),and tertiary amyl methyl ether(TAME)by EPA Method 8260B <br /> Methanol by EPA Method 8015(Modified) <br /> I <br /> 0797 Paget oft <br />