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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 /> TQC Depth to Water Level iEthyl- Total <br /> Well Date PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pgIL) (pglL) (pgIL) W/L) (pg/L) (uglL) (uglL) (mglL) Comments <br /> AMW-2 9/13/1994 2645 616 20 29 <br /> 1/10/1995 -- 2645 472 21 73 -- <br /> 3/23/1995 — 26 45 440 2205 62 - ND<O 50 ND<O 50 ND<O 50 ND<1 0 — 97 <br /> 10/4/1995 -- 2645 592 2053 -- <br /> 1/4/1996 2645 490 2155 <br /> 3/29/1996 — 26 45 473 21 72 ND<50 NO<O 5 ND<1 ND<1 ND<1 ND<10 32 <br /> 7/1/1996 -- 2645 528 21 17 <br /> 10/15/1996 -- 2645 549 2096 <br /> 4/16/1997 -- 2645 413 2232 <br /> 10/15/1997 — 2645 567 2078 <br /> 3/17/1998 -- 2645 523 21 22 - <br /> 1/6/1999 2645 523 2122 <br /> 9/13/1999 -- 26 45 519 21 26 <br /> 1/19/2000 -- 2645 489 2156 <br /> 4/12/2000 2645 509 21 36 -- <br /> 7/22/2000 2645 549 2096 <br /> 10/26/2000 26 45 535 2110 <br /> 1/17/2001 2645 540 2105 - <br /> 4/12/2001 2645 515 21 34 <br /> 5/23/2001 - 2645 531 21 14 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 5 NO<O 5 -- <br /> 7/31/2001 - 2645 557 2088 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<0 5 — <br /> 10/30/2001 - 2645 548 2097 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<O 5 <br /> 1!2912002 — 2645 477 21 68 ND<50 - ND<0 5 NNO 5 ND<O 5 ND<1 0 ND<0 5 — <br /> 4/30/2002 -- 2645 513 2132 ND<50 ND<0 5 ND<O 5 ND<0 5 ND<1 0 ND<O 5 -- <br /> 7/30/2002 P 2645 545 2100 NO<50 - ND<O 5 ND<0 5 ND<O 5 ND<1 0 ND<O 5 - <br /> 10/31/2002 P 2645 543 21 02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<2 5 <br /> 01/3012003 P 2645 511 2134 <50 <0 50 —<050 <050 1050 <0 50 - <br /> 04/30/2003 P 26 45 491 2154 <50 <O 50 <0 50 <0 50 <0 50 <2 5 <br /> 07/30/2003 P 2645 568 2077 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 1101291 2 0 0 3 P 2645 559 2086 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 <br /> 01/26/2004 P 2645 506 21 39 <50 <0 50 <0 50 <0 50 <0 50 <0 50 - <br /> 04/27/2004 P 2645 544 21 01 <50 -- <0 50 <D 50 <0 50 <0 50 <0 50 -- <br /> AMW-3 8/10/1990 — 2529 746 1783 90 0 6 41 2 8 21 <br /> Report Date July 13,2004 Page 3 of 25 <br />