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TABLE 2 <br /> GROUNDWATER ANALYTICAL RESULTS <br /> FOR OXYGENATES AND ADDITIONAL COMPOUNDS <br /> ARCO Service Station No. 5469 <br /> 130 South Wilson Way, Stockton, California <br /> USEPA USEPA <br /> Method 8260 Method 8015 (M) <br /> Well TBA MTBE DIPE ETRE TAME 1,2-DCA EDB Ethanol Methanol QA/QC <br /> Number Date Review <br /> MW-7 06/28/01 <200 <2 <2 <2 <2 <2 <2 <3,000 NA <br /> 09/14/01 <200 <2 <2 <2 <2 <2 <2 NA NA <br /> 12/14/01 <5.0 18 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <br /> 02/21/02 <5.0 59 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <br /> 04/23/02 <5.0 110 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <br /> 09/19/02 <5.0 110 <0.50 <0.50 <0.50 <0.50 <0.50 <50 NA <br /> 12/11/02 <40 98 <1.0 <1.0 <1.0 <1.0 <1.0 NA NA <br /> 01/14/03 <20 1.3 <0.50 <0.50 <0.50 NA NA NA NA <br /> 02/12/03 <20 <0.50 <0.50 <0.50 <0.50 NA NA <40 NA <br /> 02/26/03 <20[51 <0.50[5] <0.50 <0.50 <0.50 2.0 <0.50 <40 NA <br /> 05/19/03 <20 <0.50 <1.0 <1.0 <1.0 1.7 <0.50 <100 NA A <br /> 09/09/03 <20 <0.50 <1.0 <1.0 <1.0 2.0 <0.50 <100 NA A <br /> MW-8 06/28/01 <5,000 1,600 <50[4] <50[4] <50[4] <50[4] <50[4] <75,000[4] NA <br /> 09/14/01 <20.1000 7,500 <200 <200 <200 <200 <200 NA NA <br /> 12/14/01 <500 17,000 <50 <50 <50 <50 <50 NA NA <br /> 02/21/02 <1,000[3] 22,000 <100[3] <100[3] <100[3] <10013] <100[3] NA NA <br /> 04/23/02 <5,000[3] 26,000 <500131 <500[3] <500[3] <500[3] <500[3] NA NA <br /> 09/19/02 <500 16,000 <50 <50 <50 <50 <50 <5,000 NA <br /> 12/11/02 <10,000 24,000 <250 <250 <250 <250 <250 NA NA <br /> 01/14/03 <10,000 18,000 <250 <250 <250 NA NA NA NA <br /> 02/12/03 <10,000 21,000 <250 <250 <250 NA NA <20,000 NA <br /> 02/26/03 <20,000[5] 19000[5] <500 <500 <500 <500 <500 <40,000 NA <br /> 05/19/03 <4,000 33,000 <200 <200 <200 <100 <100 <20,000 NA A <br /> 09/09/03 <40,000 23,000 <2,000 <2,000 <2,000 <1,000 <1,000 <200,000 NA A <br /> 5TKATU5 <br /> Arco 5469_Qaarterly_Data <br /> 7of9 <br />