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Table 4 <br /> Historical Halogenated Volatile Organic Compound Groundwater Analytical Results <br /> Union Pacific Railroad Company <br /> Former Maintenance Facility,Tracy,California <br /> 201012011 Annual Groundwater Monitoring Report <br /> Cle2up Levels(WDR-98-2131 200 6 16.0 6.0 10 1 0.69 2.3 f 0.13 1 NA <br /> Cleanup Levels WDR-97-707' 200 5.0 0.06 5.0 6.0 10 0.7 5.0 0.016 NA <br /> cis-1,2- tr2ns•1,2• Vinyl Total <br /> Well ID Date 5am led 111-TCA 1,1-DCA 11-DCE Chloroethane DCE DCE PCE TCF <br /> Chloride HVOCs Notes <br /> 11/20/09 ND<0,5 NO<0.5 NO<0 5 NO<1.0 NO<0.5 ND<0.5 ND<0.5 NO<0.5 NO<0.5 NO <br /> 03118/10 NO<0.5 NO<0.5 N❑<4,5 ND<1.0 ND<0.5 ND<0.5 NO<0.5 ND<0.5 NO<0 5 NO <br /> TW-04 08115/01 NO<1 1.78 ND<1 NO<1 NO<1 NO<1 NO<i NO<1 1.06 2.83 <br /> 11119/01 NO<1 2.67 NO<1 NO<1 ND<1 NO<1 NO<1 NO<1 NO<0.5 2.57 <br /> 11/18/02 NO<0.5 2 ND<0,5 ND<1 ND<0.5 NO<0.5 ND<0,5 ND<0.5 ND<0.5 2 <br /> 03127/03 NO<1 UJ 1,3 J ND<1 UJ NO<1 UJ NO<1 UJ NO<1 UJ ND<1 UJ ND<1 UJ NO<1 UJ 1.3 <br /> 11102/04 NO<1-0 6.1 NO<1.0 NO<1.0 0.23 J ND<1.0 NO 0.0 ND<1.0 3.3 9.63 <br /> 03108/06 NO<1.0 9.8 ND<1.0 NO<1.0 ND 0.0 NO<1-0 ND 0.0 NO<1.0 NO<1.0 9.8 <br /> Dup 03/08106 NO<1,0 9.4 ND<1.0 NO<1.0 NO 0.0 NO<1.0 ND 0.0 NO 0.0 NO<1.0 9.4 <br /> 12@8106 ND<0.50 9.0 ND<0.50 NO<1.0 ND<0.50 NO<0.50 ND<0.50 NO<0,50 ND<0.50 9.0 <br /> 03/20107 NO<0.5 5.4 NO<0.5 NO<1.0 ND<0.5 ND<0.5 NO<0.5 ND<0.5 ND<0.5 5.4 <br /> 03117109 NA NA NA NA NA NA NA NA NA NA <br /> 11119109 NA NA NA NA NA NA NA NA NA NA <br /> 03115110 NA NA NA NA NA NA NA NA NA NA <br /> Trip Blank 03/18108 NO<0.5 ND<0.5 NO<0.5 NO<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 NO<0,5 Na <br /> 03/16110 ND<0.5 ND<0.5 NO<0.5 ND<1.0 ND<0.5 NO<0.5 NO<0.5 ND<0.5 NO<0,5 NO <br /> 03/16110 ND<0.5 ND<0.5 NO<0.5 ND<1.0 NO<0.5 NO<0.5 ND<0.5 NO<0.5 N❑<0,5 NO <br /> Notes appear on the following page. <br /> Notes&Key: <br /> All units are in rt 11/20/09 <br /> °Exceedences of cleanup levels specified in the RW61CB Cleanup and Abatement Order 92-707 are indicated in bold type <br /> n Total HVOCs includes a detection of bromomethane <br /> In addition,benzene was detected at 2 pg]L <br /> °In addition,benzene was detected at 4.3 pg1L and o-xylene at 0.42 j pg1L <br /> 'Total HVOCs includes a detection of benzene at 0.4 J and toluene at 0,78 J pg1L <br /> 'in addition,benzene was detected at 0.19j pg1L <br /> 9 In addition,benzene was detected at 2.11 pg1L <br /> "Total HVOCs includes a dection of bromoform <br /> 'Total HVOCs includes a dection of 1,2-dichlorobenzene <br /> 'Reporting limit is elevated due to matrix interference <br /> "In addition,benzene was detected at 2.6 pg1L <br /> In addition,benzene was detected at 0.59 pgJL <br /> Dup=Duplicate <br /> NA=Not applicable <br /> ND< =Not detected at or above the value listed after the less-than sign <br /> HVOCs=Halogenated volatile organic compounds <br /> Data qualifiers iLaboratory) <br /> UP Tracy AnnualTabies 1-52011xlsx ARCADIS <br /> Pape 10 of 11 <br />