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TABLE 3 <br /> GROUNDWATER ANALYTICAL SUMMARY <br /> ARCO Service Station No. 6100 <br /> 25775 Patterson Pass Road <br /> Tracy, California <br /> Ethyl- Total Nitrate <br /> Date TPHG Benzene Toluene benzene Xylenes MTBE TBA TAME DIPE ETRE Ethanol as NO3 QA/QC <br /> Sample ID Collected (99/L) (99/L) (µg/L) (µ L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (mg/L) Review <br /> MW-1 02/08/01 171,000 26,900 32,800 4,330 18,300 10.6 245 <2.00 <2.00 <2.00 NA NA <br /> MW-2 11/06/01 100 4.7 <0.50 <0.50 <0.50 <1.0 <100 <1.0 <1.0 <1.0 NA NA <br /> 03/26/02 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <0.50 NA NA <br /> 06/21/02 590[2] 13 0.51 <0.50 0.54 <0.50 <5.0 <0.50 <0.50 <0.50 NA NA <br /> 09/18/02 <50 <0.50 <0.50 <0.50 <0.50 <0.50 6.6 <0.50 <0.50 <0.50 NA NA <br /> 12/23/02 340 7.2 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <0.50 NA NA <br /> 03/24/03 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <20 <0.50 <0.50 <0.50 <100 NA <br /> 06/17/03 170[4] <0.50 <0.50 <0.50 1.4 <0.50 <20 <1.0 <1.0 <1.0 <100 NA J <br /> I <br /> MW-6 06/17/03 61,000 7,200 8,800 270 17,000 110 <4,000[1] <200[l] <200[1] <200[1] <20,000[1] NA J <br /> VW-2 02/08/01 28,700 6,680 524 112 1,890 395 218 <2.00 <2.00 <2.00 NA <1.0 <br /> 03/26/02 33,000 9,700 670 1,000 3,500 350 <50[l] <5,0[1] <5.0[1] <5.0[1] NA NA <br /> VW-3 02/08/01 33,800 2,540 2,820 194 5,550 1,000 387 5.70 <2.00 <2.00 NA <1.0 <br /> 03/26/02 43,000 6,000 4,700 930 8,800 490 <100111 <10[1] <10[l] <10[l] NA NA <br /> i <br /> VW-4 02/08/01 605,000 33,900 27,500 3,070 24,200 1,890 <20,000 <200 <200 <200 NA <1.0 <br /> 09/18/02 160,000 21,000 24,000 2,900 26,000 1,200 <2,500 <250 <250 <250 NA NA <br /> l <br /> 1� <br /> ATcO_F Quarterly-Data Pa of 3 <br />