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<br /> 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 µ L Review
<br /> MW-6 06/21/00 <200 4,120 <2 4.1 4.64 <2 <2 <3,000 <1
<br /> 09/08/00 <200 6,690 <2 5.0 8.1 <2 <2 <3,000 1.08
<br /> 12/11/00 <200 7,060 [2] <2 3.08 9.28 <2 <2 <3,000 <1
<br /> 03/22/01 <200 <2,000 [4] <20 [4] <20 [4] <20 [4] <20 [4] <20 [4] NA NA
<br /> 05/24/01 241 16,100 <2 4.47 21.1 <2 <2 NA NA
<br /> 09/14/01 <2,000 22,000 <20 <20 22 <20 <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[3] <500[3] <500[3] <500[3] <500[3] NA NA
<br /> 04/23/02 <5,000[3] 50,000[3] <500[3] <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 /> 12/11/02 <40,000 85,000 <1,000 <1,000 <1,000 <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 <20,000 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 <200 <200 <200 <100 <100 <20,000 NA A
<br /> 09/09/03 <100,000 49,000 <5,000 <5,000 <5,000 <2,500 <2,500 <500,000 NA A
<br /> 5TKA W5
<br /> Arco_5469_Quartu1y_Data
<br /> 6of9
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