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Table 1 <br /> i <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 PI Casing Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP Elevation (feet bgs) (feet msl) (pglL) (pglL) (/►g/L) (pglL) (frg/L) (Erg/L) (pg/L) (mg1L) Comments <br /> AMW-4 3/29/1996 -- 2536 432 2104 ND<50 — N0<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<l 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 20 24 — -- — — — -- "- <br /> 3/17/1998 -- 25 36 4 71 2065 -- <br /> 1/6/1999 — 2536 483 2053 - — -- -" -- <br /> 9/13/1999 -- 2536 513 2023 — - — -- -- -- — <br /> 1/19/2000 — 2536 455 2081 -- — -- — - <br /> 4/12/2000 2536 440 2096 — - — - — — -- <br /> 7/22/2000 2536 507 2029 <br /> 10/26/2000 - 25 36 4 68 2068 - <br /> 1/17/2001 -- 2536 522 2014 - -- - -- — — ~ <br /> 4/12/2001 — 25 36 476 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 - 25 36 511 20 25 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 ND<0 5 — <br /> 10/30/2001 -- 25 36 498 2038 ND<50 -- N0<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<i 0 ND<0 5 <br /> 4/30/2002 2536 472 20 64 ND<50 -- ND<0 5 N13<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 <br /> 07/30/2003 P 2536 518 2018 <50 - <0 50 <0 50 <0 50 <0 50 <0 50 10129/2003 P 2536 502 2034 <50 <0 50 <0 50 <0 50 <0 50 <0 50 - <br /> 01/2612004 P 2536 466 2070 <50 — <0 50 <0 50 <0 5o <0 50 <0 50 -- <br /> AMW-5 12/10/1991 2619 595 2024 ND<30 — ND<0 30 ND<0 30 ND<0 30 N0<0 30 - — <br /> 3/25/1992 - 26 19 5 39 20 80 72 - 4 8 ND<0 30 ND<0 30 ND<0 30 -- - <br /> 6/25/1992 — 2619 727 1892 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 - -- <br /> 12/8/1992 -- 2619 578 2041 56 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- — <br /> 3/10/1993 -- 26 19 550 4=V2 <br /> 69 ND<50 — 32 06 2 51 <br /> 6/16/1993 — 2619 376 43 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 10/22/1993 — 2619 593 1 2026 300 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 840 - <br /> I <br /> Report Date Apr 128,2004 r Page 6 of 24 <br />