ARCHIVED REPORTS_2009_2010 ANNUAL MONITORING REPORT

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�w w w w w w w �w w � wt wi w wi w w w w w Table 5 Halogenated Volatile Organic Compound Groundwater Analytical Results Union Pacific Railroad Company Former Maintenance Facility,Tracy,California 2009/2010 Annual Groundwater Monitoring Report Cleaup Levels(WDR•98-213 200 5 16,0 6.0 1 10 0.69 2.3 0.13 NA Cleanup Levels(WDR-97-707)-i 200 1 5.0 0.06 1 5.0 6.0 10 0.7 5.0 1 0.015 1 NA cis-1,2- trans-1,2- Vinyl Total Notes Well ID Date Sampled 1,1,1-TCA 1,1-DCA 1,1-DCE Chloroethane DCE DCE PCE TCE Chloride HVOCs MW-15C 02/14/01 ND<1 NO<1 NO<1 ND<1 ND<1 ND<7 ND<1 NO<1 NO<0.5 NO 03/08/02 NO<1 NO<1 NO<1 NO<1 ND<1 NO<1 NO<1 ND<1 ND<0.5 ND 03/27/03 NO<1 UJ NO<t UJ NO<1 UJ ND<1 UJ NO<1 UJ NO<1 UJ NO<1 UJ NO<1 UJ NO<1 UJ ND 03/24/04 NO<1.0 NO<1.0 ND<1.0 NO<1.0 ND<1.0 ND<1.0 NO<1.0 ND<1.o NO<1.0 NO 03/02/05 NO<1.0 ND<1.0 NO<1.0 NO<1.0 ND<1.0 NO<1.0 ND<1.0 NO<1.0 NO<1.0 NO 03/14/06 NO<1.0 ND<1.0 ND<1.0 ND<1.0 NO<1.0 NO<1.0 NO<1.0 NO<1.0 NO<1.0 NO 03/22/07 NO<0.5 ND<0.5 ND<0.5 NO<1.0 NO<0.5 ND<0.5 NO<0.5 ND<0.5 ND<0.5 NO 03/19/08 NO<0.5 NO<0.5 NO<0.5 NO<0.5 NO<0.5 NO<0.5 ND<0.5 ND<0.5 NO<0.5 ND 03/17/09 NO<0.5 NO<0.5 ND<0.5 NO<0.5 ND<0.5 ND<0.5 NO<0.5 NO<0.5 NO<0.5 NO 03/17/10 ND<0.5 NO<0.5 ND<0.5 NO<1.0 ND<0.5 NO<0.5 NO<0.5 NO<0.5 NO<0.5 NO MW-16A 08/15/01 NO<1 ND<1 NO<1 NO<1 NO<1 ND<1 ND<7 ND<1 NO<0.5 NO 03/07/02 ND<1 ND<1 ND<1 NO<1 NO<1 ND<1 ND<1 NO<1 NO<0.5 NO 03/26/03 ND<1 NO<t ND<t ND<1 NO<1 ND<1 NO<1 ND<7 NO<1 NO 03/23/04 ND<1.0 ND<1.0 ND<1.0 NO<1.0 NO<1.0 NO<1.0 ND<1.0 ND<1.0 NO<1.0 NO 03/03/05 NO<1.0 NO<t o NO<1.0 ND<1.0 NO<1.0 ND<1.0 NO<1.0 NO<1.0 ND<1.0 NO 12/28/06 ND<0.50 NO<0.50 NO<0.50 NO<1.0 NO<0.50 NO<0.50 ND<0.50 NO<0.50 NO<0.50 NO 03/21/07 NO<0.5 ND<0.5 ND<0.5 NO<1.0 ND<0.5 NO<0.5 NO<0.5 NO<0.5 NO<0.5 NO 03/20/08 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 NO<0.5 NO<0.5 NO<0.5 NO<0.5 NO 03/17/09 ND<0.5 NO<0.5 ND<0.5 ND<0.5 ND<0.5 NO<0.5 NO<0.5 NO<0.5 NO<0.5 NO 03/17/10 ND<0.5 ND<0.5 ND<0.5 ND<1.0 NO<0.5 ND<0.5 ND<0.5 NO<0.5 ND<0.5 NO MW-16B 08/15/01 NO<1 ND<1 ND<1 NO<1 ND<1 NO<1 ND<1 ND<1 ND<0.5 NO 03/07/02 ND<1 NO<1 ND<1 ND<1 NO<1 ND<1 0.683 NO<1 NO<0.5 0.683 03/27/03 NO<1 ND<1 NO<1 NO<1 NO<1 NO<1 0.48 j NO<7 ND<1 0.48 03/24/04 NO<1.0 NO<1.0 NO<1.0 ND<1.0 NO<1.0 NO<1.0 0.41 j NO<1.0 NO<1.0 0.41 03/03/05 NO<1.0 ND<1.0 ND<1.0 NO<1.0 NO<1.0 NO<1.0 NO<1.0 NO<1.0 NO<1.0 NO 03/14/06 NO<1.0 0.25j ND<1.0 NO<1.0 NO<1.0 NO<1.0 0.74j NO<1.0 NO<1.0 0.99 03/22/07 ND<0.5 ND<0.5 ND<0.5 NO<1.0 NO<0.5 NO<0.5 NO<0.5 NO<0.5 ND<0.5 NO 03/20/08 NO<0.5 NO<0.5 NO<0.5 ND<0.5 ND<0.5 ND<0.5 NO<0.5 NO<0.5 NO<0.5 NO 03/17/09 NO<0.5 NO<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 0.69 NO<0.5 NO<0.5 0.69 03/17/10 NO<0.5 ND<0.5 ND<0.5 NO<1.0 ND<0.5 NO<0.5 0.54 NO<0.5 ND<0.5 0.54 UP Tracy Annual Tables 2010_OC'd_AAV.alsx AR CAD I S Page 11 of 15