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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 1,2- Nitrate <br /> Sample Date TPHG Benzene Toluene benzene Xylenes MTBE TBA TAME DIPE ETBE Ethanol DCA EDB as NO3 QA/QC <br /> ED Collected (g OWL) {RE/L) ( ) ( ) ( ) ( ) (RE!) ( ( ) ( /L) OWL) ( (m ) Review <br /> DW 02/07/01 <50 0 <0 500 <0 500 <0 500 <0 500 <2 00 <200 <2 00 <2 00 <2 00 NA NA NA 16 <br /> 09/05/01 <50 <0 50 <0 50 <0 50 <0 50 <2 0 <200 <2 0 <2 0 <2 0 NA NA NA 15 <br /> 11/12/01 <50 <0 50 <0 50 <0 50 <0 50 <1 0 <100 <1 0 <1 0 <1 0 NA NA NA 17 <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 NA 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 NA NA NA <br /> 09/19/02 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <5 0 <0 50 <0 50 <0 50 NA NA NA 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 NA 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 NA NA <br /> 06/16/03 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <20 <1 0 <1 0 <1 0 <100 NA NA NA A <br /> 09/19/03 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <20 <1 0 <1 0 <1 0 <100 <0 50 <0 50 NA A <br /> 12/23/03 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <20 <1 0 <1 0 <1 0 <100 <0 50 <0 50 NA A <br /> PHG=Total petroleum hydrocarbons as gasoline ug/L=micrograms per liter QA/QC Review <br /> TBE=Methyl tertiary butyl ether mg/L=milligrams per liter A=Data accepted without qualification <br /> BA=Tertiary butyl alcohol NA=not analyzed J=Data accepted with qualification <br /> AME=Tertiary amyl methyl ether DW=Domestic Well R=Data rejected <br /> IPE=Di-isopropyl ether <br /> TBE=Ethyl tertiary butyl ether <br /> 1,2-DCA= 1,2-Dichloroethane <br /> EDB= 1,2-Dibromoethane <br /> [I I=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 /> [31=Discrete peak @ C-6 <br /> [41=Discrete peak @ C5-C7 <br /> [51=Result may be biased low Matrix spike and matrix spike duplicate recoveries were below control limits,and the corresponding RPD was outside of control limits <br /> Pae 3 of 3 5TKATU5 <br /> Arco_6100_Quarlerly_Data g <br />