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• <br /> 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 ETBE as NO3 <br /> Sample ID Collected (µg/L) (pWL) (pg/L) (pg/L) (µg/L) (Rg/L) (pg/L) (pg/L) (gWL) (gg/L) (mg/L) <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 /> ggIL=micrograms per titer <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 /> Arco_6100_Quarterly_Data Page 2 of 2 <br />