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Taj <br /> Second Quarter 2003 Groundwater Monitoring and Analytical Data <br /> 7-Eleven Store#17334 <br /> 4501 North Pershing Avenue <br /> Stockton CA <br /> Well ID/ Ethyl- Dissolved <br /> Elevation Date Benzene Toluene Benzene Xylene TPHg MtBE TBA DIPE ETBE TAME Notes Oxygen DTW SPT WTE <br /> (TOC) (pgIL) (pg1L) (pg,L) (pg/L) (pgIL) (pglL} (pglL) (pgIL) I (p91L) (pg/L) (mglL) (feet) (feet) (feet) <br /> MW-2 05/20/03 <0 50 <0 50 <0 50 <0 50 <50 1 7 62 <0 50 <0 50 <0 50 01 1797 000 -933 <br /> 864 <br /> MW-3 05/20/03 <0 50 <0 50 <0 50 <0 50 68 090 <5 0 <0 50 <0 50 <0 50 05 1719 000 -975 <br /> 744 <br /> MWS 05/20/03 <0 50 <0 50 <0 50 <0 50 590 290 1,200 <0 50 <0 50 10 14 1678 000 -1009 <br /> 669 <br /> MW-5A 05/20/03 2,000 4,900 1,200 5,300 37,000 480 <200 <20 <20 <20 06 1685 000 -963 <br /> 722 <br /> MW-5B 05/20/03 <0 50 <0 50 <0 50 <0 50 <50 061 <5 0 <0 50 <0 50 <0 50 67 1708 000 -962 <br /> 7461 <br /> Explanation <br /> TPHg=Total petroleum hydrocarbons-as-gasoline TAME=Tert-amyl-methyl ether pg/L=micrograms per liter <br /> MtBE=Methyl-tert-butyl ether DTW=Depth to water mg/L=milligrams per Mer <br /> TBA=Tert-butanol SPT=Separate-phase hydrocarbon thickness ft=feet <br /> DIPE=Dusopropyl ether WTE=Water table elevation --=Not sampledlnot measured <br /> ELBE=Ethyl-tert-butyl ether TQC='fop of casing elevation in feet above mean sea level <br /> Note All samples analyzed using EPA Method 82606 <br /> I <br /> 7-EleveM7-1 i Store1140631Tableski 7334 03-2Q As Page 1 of 1 <br />