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Ground Water Analytical Results Summary Table <br /> Former Union Pacific Railroad Company Property <br /> 936 East Weber Avenue <br /> Stockton, California <br /> USEPA <br /> Method 8015M USEPA Methods 8260 and/or 8020 <br /> Sample Sample TPH as <br /> Identification Date Gasoline Benzene Toluene Ethylbenzenel X lens MTBE TBA DIPE ETBE TAME Ethanol EDB 1,2-DCA <br /> B-5 May-98 46,000 2,300 310 570 6,500 <100 <100 <200 <100 <100 NA NA NA <br /> B-6 May-98 1,500 38 11 12 180 <5 86 <10 <5 <5 NA NA NA <br /> Apr-99 <50 <0 5 <0 5 <0 5 <0 5 <0 5 <20 <05 <0 5 <0 5 NA NA NA <br /> MW-1 Mar-00 <50 <0 5 <0 5 <0 5 <1 0 <2 <100 <2 <2 <2 <1,000 <2 <2 <br /> Oct-00 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 <2 <br /> Oct-00, <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 <2 <br /> Apr-99 <50 <0 5 <0 5 <0 5 <0 5 <05 <20 <0 5 <0 5 <0 5 NA NA NA <br /> Mar-00 577 <0 5 <0 5 <0 5 <1 0 <2 <100 1 <2 <2 <2 <1,000 <2 813 <br /> MW-2 Jun-00 <50 <0 5 <05 <0 5 1 <10 <2 <100 <2 <2 <2 <1,000 <2 924 <br /> Jun-00° <50 <05 <0 5 <05 <1 0 <2 <100 <2 <2 <2 <1,000 <2 954 <br /> Oct-00 528 <2 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 773 <br /> Apr-99 <50 <0 5 <0 5 <05 <0 5 <05 <20 <0 5 <0 5 <0 5 NA NA NA <br /> Apr-99' <50 <0 5 <05 <05 <05 <05 <20 <0 5 <0 5 <0 5 NA NA NA <br /> MW-3 Mar-00 <50 <0 5 <05 <05 1 <1 0 <2 <100 1 <2 <2 <2 <1,000 <2 <2 <br /> Mar-00a <50 <0 5 <0 5 <05 <1 0 <2 <100 <2 <2 <2 <1,000 <2 <2 <br /> Jun-00 <50 <0 5 <0 5 <05 <1 0 <2 <100 <2 <2 <2 <1,000 <2 <2 <br /> Oct-00 <50 <2 1 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 <2 <br /> MCL — 1 150 700 1,750 3b — — — — — 005 5 <br /> Notes <br /> a=Duplicate sample <br /> b=California Department of Health Services drmkLng water action level <br /> Results reported only for those compounds detected in samples collected at the site <br /> 1,2-DCA=1,2-Dichloroethane NA=Not analyzed <br /> DIPE=Di-isopropyl ether TAME=Tert-amyl methyl ether <br /> EDB=Ethylene dibromnde TBA=Tert-butyl-alcohol <br /> E`L'BE=Ethyl tert-butyl ether USEPA=United States Environmental Protection Agency <br /> MCL=California Department of Health Services Primary Maximum Contaminant Level — =No standard established <br /> MTBE=Methyl tert-butyl ether All results reported in micrograms per liter(µg/L) <br /> FRM Page 1 of 1 FORMER UPRR/818725 11/27/00 <br />