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i i • - <br /> TABLE 3 , <br /> GROUNDWATER ANALYTICAL SUMMARY <br /> ARCO Service Station No 6100 <br /> 25775 Patterson Pass Road <br /> Tracy,California <br /> I <br /> i <br /> Ethyl- Total Nitrate <br /> Date TPHG Benzene Toluene benzene Xylenes MTBE TBA TAME DIPE ETBE as NO3 <br /> j Sample ID Collected (pg/L) (n/L) (pg/L) (pg/L) (gg/L) (pg/L) (pg/L) (pg/L) (pglL) (pg/L) (mglL) <br /> VW-6 02/08/01 12,100 4,440 <100 <100 715 160 <200 <2 00 <2 00 <2 00 <1 0 <br /> 11/06/01 24,000 12,000 <100 <100 <100 230 <20,000 <200 <200 <200 NA <br /> 03/26/02 <10,000[2] 5,100 <100 <100 <100 270 <50[l] <5 0[1] <5 0[1] <5 0[1] NA <br /> 06/21/02 <20,000 7,000 <200 <200 <200 330 170 <5 0 <5 0 <5 0 NA <br /> 09/18/02 9,800 5,500 28 <25 40 300 270 <25 <25 <25 NA <br /> 12/23/02 20,000 8,600 <50 <50 <50 310 <100 <10 <10 <10 NA <br /> Domestic Well 02/07/01 <50 0 <0 500 <0 500 <0 500 <0 500 <2 00 <200 <2 00 <2 00 <2 00 16 <br /> 09/05/01 <50 <0 50 <0 50 <0 50 <0 50 <2 0 <200 <2 0 <2 0 <2 0 15 <br /> 11/12/01 <50 <0 50 <0 50 <0 50 <0 50 <1 0 <100 <1 0 <1 0 <1 0 17 <br /> 03/26/02 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <5 0 <0 50 <0 50 <0 50 17 <br /> 06/21/02 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <5 0 <0 50 <0 50 <0 50 NA <br /> 09/18/02 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <5 0 <0 50 <0 50 <0 50 NA <br /> 12/23/02 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <5 0 <0 50 <0 50 <0 50 NA <br /> mg/L=micrograms per liter <br /> mg/L=milligrams per liter <br /> NA=not analyzed <br /> [1] =The sample was diluted due to the presence of high levels of non-target analytes resulting in elevated reporting limits <br /> [2] =Hydrocarbon pattern is present in the requested fuel quantitation range,but does not resemble the pattern of the requested fuel <br /> I <br /> Arco_6100_Quarterly_Data Page 2 of 2 <br />