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i • • <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Retail Site No 11194 <br /> 2375 Tracy Blvd, Tracy, CA <br /> TOC Depth to Water Level Ethyl- 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) (pg1L) (pg1L) (pg1L) (pglL) (ug1L) (pglL) (pg/L) (mg/L) Comments <br /> AMW-4 6/7/1994 -- 2536 530 2006 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 34 <br /> 9/13/1994 -- 2536 559 1977 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 69 <br /> 1/10/1995 — 2536 422 21 14 ND<50 — N0<0 5 N0<0 5 ND<D 5 ND<i 71 <br /> 3/23/1995 — 2536 398 21 38 ND<50 — ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 79 <br /> 10/4/1995 — 2536 532 2004 ND<50 — ND<0 50 ND<0 50 ND<0 50 ND<1 0 N0<5 0 59 <br /> 1/4/1996 — 2536 448 2088 ND<50 -- ND<0 50 ND<0 50 ND<0 50 N0<1 0 ND<5 0 1 <br /> 3/29/1996 -- 2536 432 2104 ND<50 — ND<0 5 ND<1 ND<1 ND<1 ND<10 37 <br /> 7/1/1996 -- 2536 488 2048 ND<50 — ND<0 5 ND<1 ND<1 ND<1 ND<10 61 <br /> 10/15/1996 -- 2536 509 2027 ND<50 — ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 75 <br /> 4/16/1997 — 2536 367 2169 -- — — — -- _ -- <br /> 10/15/1997 -- 2536 512 2024 <br /> 3/17/1998 — 2536 471 2065 <br /> 1/6/1999 -- 2536 483 2053 <br /> 9/13/9999 -- 2536 513 2023 <br /> 1/19/2000 -- 2536 4 55 2081 <br /> 4/12/2000 — 2536 440 2096 <br /> 7/22/2000 — 2536 507 2029 <br /> 10/26/2000 2536 4 68 2068 <br /> 1/17/2001 -- 2536 522 2014 <br /> 4/12/2001 -- 25 36 7 476 2060 <br /> 5/23/2001 — 2536 485 2051 ND<50 — ND<0 5 147 ND<0 5 ND<1 5 ND<0 5 -- <br /> 7/31/2001 -- 2536 511 2025 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 N0<0 5 - <br /> 10/30/2001 -- 2536 4 98 2038 ND<50 -- ND<0 5 N0<0 5 ND<0 5 ND<1 5 818 — <br /> 1/29/2002 2536 441 2095 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 -- <br /> 4/30/2002 — 2536 472 2064 ND<50 — N0<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 — <br /> 7/30/2002 P 2536 502 2034 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 — <br /> 10/31/2002 P 2536 495 2041 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<2 5 -- <br /> 01/30/2003 P 2536 472 2064 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 04/30/2003 P 2536 459 2077 <50 — <0 50 <0 50 <0 50 <0 50 <2 5 <br /> 07/30/2003 P 2536 518 2018 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 10/29/2003 P 2536 502 2034 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 01/26/2004 P 1 2536 1 466 2070 1 <50 — <0 50 <0 50 <0 50 1 <0 50 <0 50 -- <br /> 104/27/20041 P 1 2536 1 502 1 2034 <50 1 - <0 50 <0 50 <0 50 1 <0 50 <0 50 — <br /> Report Date September 10,2004 Page 6 of 26 <br />