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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 ETBE TAME 1,2-DCA EDB Ethanol Methanol QA/QC
<br /> Number Date /L IL. Review
<br /> MW-5 06/21/00 259 8,370 <2 7.46 <2 <2 <3,000 <1
<br /> 09/08/00 357 10,300 4 4 10.4 <2 <2 <3,000 1.17
<br /> 12/11/00 245 12,100[2] 4 <2 13.1 <2 4 <3,000 <1
<br /> 03/22/01 <200 15,600[3] 4[4] 4[4] 4[4] <2[4] <2[4] NA NA
<br /> 05/24/01 <100014] 14,400 <10[4] <10[4] 40[4] <10[4] 40[4] NA NA
<br /> 09/14/01 <2,000 16,000 <20 <20 <20 40 <2)0 NA NA
<br /> 12/14/01 <50 12,000 <5.0 <5.0 14 <5.0 <5.0 NA NA
<br /> 02/21/02 <1,000[31 13,000 <100[3] <100[3] 400[31 400[3] <100[3] NA NA
<br /> 04123102 <5,000[31 7,600[31 <500[3] <500[3] <500[3] <500[3] <500[3] NA NA
<br /> 09/19/02 <500 4,600 <50 <50 <50 <50 <50 <5,000 NA
<br /> 12/11/02 <1.000 3,800 45 <25 <25 <25 <25 NA NA
<br /> 01/14/03 <2,000 1,500 <50 <50 <50 NA NA NA NA
<br /> 02!12103 <20 5.4 <0.50 <0.50 <0.50 NA NA <40 NA
<br /> 02/26/03 40[51 14[5] <0.50 <0.50 <0.50 <0.50 <0.50 <40 NA
<br /> 05/19/03 <2,000 2,300 <100 <100 <100 <50 <50 40,000 NA A
<br /> MW-6 06/21/00 <200 4,120 4 4.1 4.64 <2 4 <3,000 <1
<br /> 09/08/00 400 6,690 4 5.0 8.1 4 <2 <3,000 1.08
<br /> 12/11/00 <200 7,060[21 <2 3.08 9.28 <2 <2 <3,000 4
<br /> 03/22/01 <200 <2,000[4] <20[4] <20[41 <20[41 <20[4] 40[4] NA NA
<br /> 05/24/01 241 16,100 4 4.47 21.1 <2 <2 NA NA
<br /> 09/14/01 4,000 22,000 <20 40 22 40 <20 NA NA
<br /> 12/14/01 <50 14,000 <5.0 <5.0 17 <5.0 <5.0 NA NA
<br /> 02/21/02 <5,000[3] 45,000 <500[31 <500[31 <500[3] <500[3] <500[3] NA NA
<br /> 04/23/02 <5,000[3] 50,000[3] <500[31 <500[3] <500[3] <500[3] <500[3] NA NA
<br /> 09/19/02 590 69,000 <50 <50 110 <50 <50 <5,000 NA
<br /> 12111/02 <40,000 85,000 <1,000 <1,000 4,000 <1,000 <1,000 NA NA
<br /> 01/14/03 <40,000 67,000 <1,000 <1,000 <1,000 NA NA NA NA
<br /> 02/12/03 40,000 42,000 <500 <500 <500 NA NA <40,000 NA
<br /> 02/26/03 <40,000 31,000 <1,000 <1,000 <1,000 <1,000 <1,000 <80,000 NA
<br /> 05/19/03 <4,000 59,000 400 <200 <200 <100 <100 40,000 NA A
<br />� �Tl�A7U5
<br /> Arco-5469_QuarwT1y_Data
<br /> j 3 of 6
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