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Table 3 <br /> Total Extractable Petroleum Hydrocarbons as Diesel Groundwater Analytical Results <br /> Union Pacific Railroad Company <br /> Former Maintenance Facility, Tracy, California <br /> 2010/2011 Annual Groundwater Monitoring Report <br /> Cleanup Levels Total Petroleum <br /> 100 100 <br /> (CAO 92-707) Hydrocarbons <br /> Monitoring Well Sample Date TEPH-d(Ng/L) TEPH-d SGa (Ng/L) Notes <br /> 02/16/01 N D<50 NA <br /> 03/11/02 ND<50 NA <br /> 03/02/05 ND<50 NA <br /> 03/21/07 NA N D<49 <br /> 03/19/08 380 110 d <br /> 03/17/09 ND<47 ND<47 <br /> 03/16/10 ND<51 ND<51 <br /> 03/16/11 56 NA <br /> MW-12A 02/13/01 ND<50 NA <br /> 03/06/02 51 ND<50 <br /> 03/25/03 120 x ND<50 <br /> 03/23/04 ND<50 NA <br /> 03/01/05 N D<50 NA <br /> 03/13/06 ND<50 NA <br /> 03/21/07 NA N D<50 <br /> 03/19/08 <47 NA <br /> 03/17/09 ND<48 ND<47 <br /> 03/16/10 ND<51 ND<51 <br /> 03/16/11 ND<52 NA <br /> MW-12B 02/16/01 ND<50 NA <br /> 03/12/02 ND<50 NA <br /> 03/27/03 ND<50 UJ NA b <br /> 03/24/04 ND<50 NA <br /> 03/01/05 N D<50 NA <br /> 03/13/06 ND<50 NA <br /> 03/21/07 NA ND<48 <br /> 03/19/08 340 130 d <br /> 03/17/09 ND<47 ND<47 <br /> 03/16/10 ND<51 ND<51 <br /> 03/16/11 220 NA <br /> MW-13A 11/20/01 59 ND<50 <br /> 03/07/02 ND<50 NA <br /> 03/26/03 ND<50 NA <br /> 03/23/04 ND<50 NA <br /> 03/01/05 N D<50 NA <br /> 03/14/06 N D<50 NA <br /> 03/21/07 NA ND<47 <br /> 03/19/08 ND<47 NA <br /> 03/17/09 N D<47 N D<47 <br /> 03/16/10 ND<52 ND<52 <br /> 03/17/11 ND<51 NA <br /> MW-13B 11/20/01 52 ND<50 <br /> 03/08/02 ND<50 NA <br /> 03/26/03 120 x 130 x <br /> 03/24/04 ND<50 NA <br /> UP Tracy Annual Tables 1-5 2011.xlsx ARCADIS Page 5 of 10 <br />