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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 SG' (Ng/L) Notes <br /> 11/20/09 420 <52 <br /> 03/18/10 670 ND<54 <br /> 11/22/10 780 NA <br /> 03/18/11 690 NA <br /> MW-10A 11/19/02 400 x ND<50 <br /> 03/27/03 610 x ND<50 <br /> 11/12/03 370 x 200 x <br /> 03/22/04 600 x ND<50 <br /> 11/02/04 460 x ND<50 <br /> 03/02/05 650 x ND<50 <br /> 11/08/05 510 x,NJ 110x,NJ <br /> Dup 11/08/05 500 x,NJ 110 x,NJ <br /> 03/13/06 310 x,NJ ND<50 <br /> 12/28/06 510 J NA <br /> 03/20/07 NA 170 <br /> 11/29/07 300 220 <br /> 03/20/08 430 67 d <br /> 11/21/08 210 ND<48 d <br /> 03/18/09 210 51 d <br /> 11/20/09 230 ND<52 d <br /> 03/18/10 240 ND<51 d <br /> 11/22/10 370 NA <br /> 03/18/11 280 NA <br /> MW-10B 02/15/01 ND<50 NA <br /> 03/11/02 N D<50 NA <br /> 03/27/03 310 a,J 320 a,J b <br /> 03/22/04 ND<50 NA <br /> 03/02/05 ND<50 NA <br /> 03/13/06 ND<50 NA <br /> 03/21/07 NA N D<50 <br /> 03/19/08 ND<47 NA <br /> 03/17/09 ND<47 ND<47 <br /> 03/16/10 ND<51 ND<51 <br /> 03/16/11 ND<53 NA <br /> MW-11A 02/09/00 380 170 <br /> 02/13/01 2400 590 <br /> 11/18/02 12,000 x 7,300 x <br /> 11/02/04 23,000 x 19,000 x <br /> 03/08/06 55,000 NJ 53,000 NJ <br /> 03/20/07 NA 49,000 <br /> 03/20/08 35,000 G 32,000 G d'- <br /> 03/16/09 FP FP <br /> 03/16/10 FP FP <br /> 03/16/11 FP FP <br /> MW-11 BR 02/15/00 ND<50 NA <br /> UP Tracy Annual Tables 1-5 2011.xlsx ARCADIS Page 4 of 10 <br />