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1 <br /> Table 2 <br /> Ground WaterAnalytict l Results Summary <br /> Former Union Pacific Railroad Company Property <br />' 936 East WeberAvenue <br /> Stockton, California <br />' Sample Organic Dissolved <br /> Identification Date TPH-g Benzene Toluene Ethylbenzene Xylenes MTBE TBA DIPE ETBE TAME Ethanol EDB 1,2-DCA Lead Lead <br /> B-51 05/01/98 46,0002 2,300 310 570 6,500 <100 <100 <200 <100 <100 NA NA NA NA NA <br />' B-61 05/01/98 1,5002 38 11 12 180 <5 86 <10 <5 <5 NA NA NA NA NA <br /> MW-1 04/01/99 <50 <0 5 <05 <05 <05 <0 5 <20 <0 5 <0 5 <0 5 NA NA NA NA NA <br />' 03/01/00 <50 <05 <05 <0 5 <10 <2 <100 <2 <2 <2 4,000 <2 <2 NA NA <br /> 10/01/00 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 <2 NA NA <br /> Dup 10/01/00 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 <2 NA NA <br /> 12/20/00 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 <2 <500 NA <br /> Dup 12/20/00 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 <2 <5011 NA <br /> 03/27/01 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 <2 <500 NA <br /> Dup 03/27/01 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 <2 NA NA <br /> MW-2 04/01/99 <50 <05 <0 5 <05 <0 5 <0 5 <20 <05 <0 5 <0 5 NA NA NA 1 NA NA <br /> 03/01/00 577 <05 <0 5 <0 5 <10 <2 <100 <2 <2 <2 <1,000 <2 813 NA NA <br /> 06/01/00 <50 <0 5 <0 5 <0 5 <1 0 <2 <100 <2 <2 <2 <1,000 <2 924 NA NA <br /> Dup 06/01/00 <50 <05 <0 5 <0 5 <1 0 <2 <100 <2 <2 <2 <1,000 <2 954 NA NA <br /> 10/01/00 528 <2 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 773 NA NA <br /> 12/20/00 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 284 <500 NA <br /> 03/27/01 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 <2 <500 NA <br /> 06/22/01 <50 <1 <1 <1 <1 ❑ <100 <1 <1 <1 <1,000 <1 <1 680 NA <br />' 09/28/01 135 <1 4 <1 <2 <1 <50 <1 <1 <1 <500 <1 <5 <500 <1 <br /> MW-3 04/01/99 <50 <05 <0 5 <0 5 <0 5 <0 5 <20 <0 5 <05 <0 5 NA NA NA NA NA <br /> Dup 04/01/99 <50 <05 <0 5 <0 5 <05 <0 5 <20 <0 5 <0 5 <0 5 NA NA NA jj NA NA <br />' 03/01/00 <50 <05 <05 <0 5 <1 0 <2 <100 <2 <2 <2 <1,000 <2 <2 i NA NA <br /> Dup 03/01/00 <50 <05 <0 5 <0 5 <1 0 <2 <100 <2 <2 <2 <1,000 <2 <2 NA NA <br /> 06/01/00 <50 <05 <05 <0 5 <1 0 <2 <100 <2 <2 <2 <1,000 <2 <2 NA NA <br /> 10/01/00 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 NA <2 <2 NA NA <br /> 12/20/00 <30 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 <2 <500 NA <br /> 03/27/01 <50 <2 <2 <2 <2 <2 <100 <2 <2 <2 <1,000 <2 <2 <500 NA <br /> 06/22/01 <50 <1 <1 <1 <1 <1 <100 4 <1 <1 <1,000 <1 <1 800 NA <br /> Dup 06/22/01 <50 <1 <1 <1 <1 <1 <100 <1 4 4 <1,000 <1 <1 1000 NA <br /> 09/28/01 <50 <1 <1 <1 <2 <1 <50 <1 <1 4 <500 <1 <5 <br /> <500 <1 <br /> Dup 09/28/01 97 2 <br /> <1 <1 <1 <2 <1 <50 <1 <1 <1 <500 <1 <5 <500 <1 <br /> 11/02/01 <50 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> Maximum Contaminant Level -- 1 150 700 1,750 314 — — - -- — 005 5 — 155 <br /> Notes <br /> All results reported in micrograms per liter(µg/1) TPH samples analyzed by USEPA Method 8015 Modified EDS=Eth-dene dibromide <br /> 'Grab ground water sample collected from temporary monitoring well during site investigation VOCs analyzed by USEPA Methods 8260 and/or 8020 ETBE=Ed iyl tert-butyl ether <br /> 2Hydrocarbon found in the gasoline range was uncharacteristic of the standard chromatographic gasoline profile Organic lead analvzed by Title 22 MTBE=Methyl tert-butyl ether <br /> The gasoline concentrations presented for these samples were quantified using gasoline's response factor Results reported only for those compounds detected in samples collected at the site NA=Not inalyzed <br /> 3Result not considered valid due to sample handling error,resample for constituent conducted on 11/2/01 — =No standard established TAME=T rt-amyl methyl ether <br /> 4Cal forma Department of Health Services drinking water action level <=Less than reporting limit TBA=Te -butyl-alcohol <br /> 5No MCL,action level requires treatment and public notification at 15µg/1 Dup=Duplicate sample USEPA=I luted States Environmental Protection Agency <br /> DIPE=Dr-isopropyl ether 1,2-DCA=1,2-Dichloroethane <br /> FRM Page 1 of 1 934350-6/14/02 <br />