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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Service Station No 11194 <br /> 2375 Tracy Blvd, Tracy CA <br /> Top of Depth to Water Level Ethyl- Total <br /> Well Date P! Casing Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP Elevation (feet bgs) (feet msi) ({rglL) (Ng/L) (Vg/L) (uglL) (erg/L) (j g1L) (pglL) (mg/L) Comments <br /> MW-3 1/10/1995 -- 2521 552 1969 240 - 9 4 12 38 -- – <br /> 3/23/1995 – 2521 412 2109 ND<50 -- ND<0 50 ND<O 50 ND<O 50 ND<1 0 -- 76 <br /> 10/4/1995 -- – -- ND<50 -- ND<0 50 ND<O 50 077 ND<1 0 N0<5 0 -- QC-1 <br /> 10/4/1995 – 2521 533 1988 ND<50 -- 054 N0<0 50 12 1 1 ND<5 0 48 <br /> 114!1996 2521 584 1929 – – -- – -" – – <br /> 3129l1996 -- 2521 568 1943 -- <br /> 7/1/1996 - 25 21 623 1892 -- – -- – -- – "" <br /> 10/15/1996 – 2521 645 1873 – -- – -- – -- "" <br /> 4/16/1997 -- – -- ND<500 -- ND<5 0 ND<10 0 ND<10 0 ND<10 0 ND<100 – QC-1 <br /> 4/16/1997 – 25 2i 4 75 20 45 2,300 – 37 ND<10 0 170 170 ND<100 43 <br /> 10/15/1997 -- 25 21 518 2003 690 -- 55 31 16 11 1 11 65 <br /> 3/17/1998 – – – _ ND<5 0 0 8 ND<i 0 ND<1 0 ND<1 0 ND<10 -- GIC-1 <br /> 3/17/1998 -- 2521 424 2097 ND<5 0 09 ND<1 0 ND<1 0 ND<l 0 ND<10 66 <br /> 1/6/1999 2521 485 2036 90 - 2 ND<1 0 ND<1 0 ND<1 0 39 – <br /> 9/13/1999 – 2521 501 2020 ND<250 -- ND<5 0 ND<5 0 ND<5 0 ND<5 0 86 – <br /> 1/19/2000 - 2521 451 2070 ND<50 – ND<O 5 ND<O 5 ND<O 5 ND<O 5 14 <br /> 4/12/2000 - 2521 529 1992 —N--D<-5O - N0<0 5 ND<O 5 ND<O 5 ND<0 5 28 -- <br /> 7/22/2000 – 2521 505 2016 ND<50 -- ND<0 5 ND<O 5 ND<O 5 ND<O 5 15 – <br /> 10/26/2000 -- 2,521 460 2061 ND<50 – ND<0 5 ND<O 5 ND<O 5 ND<O 5 67 - <br /> 1/17/2001 – 2521 461 2060 ND<50 -- ND<O 5 353 0 846 453 77 -- <br /> 4/12/2001 - 2521 475 2046 130 – 072 ND<O 5 0 503 166 99 – <br /> 5/23/2001 – 25 21 492 2029 590 - ND<0 5 ND<O 5 ND<O 5 ND<1 5 828 -- <br /> 7/31/2001 – 2521 515 2006 1,600 – ND<0 5 ND<O 5 ND<O 5 ND<1 5 2,350 -- <br /> 10/30/2001 – 2521 522 1999 ND<250 -- ND<2 5 ND<2 5 ND<2 5 ND<7 5 485 – <br /> 1/29/2002 – 2521 4 05 21 16 170 ND<0 5 ND<O 5 ND<O 5 ND<4 0 199 -- <br /> 4/30/2002 – 2521 1 470 2051 310 -- ND<2 5 ND<2 5 ND<2 5 ND<5 0 207 -- <br /> 7/30/2002 P 2521 499 2022 ND<50 -- 0 991 ND<O 5 ND<O 5 ND<1 0 1,280 – <br /> 10/31/2002 P 2521 4 91 20 30 ND<50 – ND<0 5 ND<O 5 ND<O 5 ND<0 5 $8 – <br /> 01/30/2003 P 2521 473 2048 <50 -- <0 50 <0 50 <0 50 <0 50 15 -- <br /> 04/30/2003 P 25-21 461 2060 <50 <0 50 <0 50 -<050 <0 50 99 – <br /> 07/30/2003 P 25 21 513 20 08 <� -- <0 50 <0 50 <0 50 <0 50 29 10129/2003 P 2521 5 052016 <50 -- <0 50 <0 50 <0 50 <0 50 51 <br /> 01126/2004 P 2521 4 56 2065 <50 -- <0 50 <0 50 <0 50 <o 50 <br /> Report Date April 28,2004 Page 14 of 24 <br />