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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 /> 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 ms I) (pg1L) (pg1L) (pg1L) (pg/L) (pg/L) (pg/L) (pg/L) (mg1L) Comments <br /> AMW-4 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 N0<0 50 ND<1 0 ND<5 0 59 <br /> 1/4/1996 — 2536 448 2088 ND<50 -- ND<0 50 ND<0 50 ND<0 50 41D<1 0 ND<5 0 1 <br /> 3/29/1996 -- 2536 432 2104 ND<50 ND<0 5 ND<1 NNII ND<1 ND<10 3 7 <br /> 7!1/1996 — 2536 4 88 2048 ND<50 - ND<0 5 ND<1 ND<1 N0<1 ND<10 6 1 <br /> 10!1511996 - 2536 509 2027 ND<50 — ND<0 5 ND<1 0 ND<1 0 ND<1 0 ND<10 7 5 <br /> 4/16/1997 — 2536 367 21 69 <br /> 10/15/1997 — 2536 512 2024 <br /> 3/17/9998 -- 2536 471 2065 <br /> 1/6/1999 -- 2536 483 2053 <br /> 9/13/1999 -- 2536 513 2023 <br /> 1/1912000 - 2536 4 55 20 81 <br /> 4/12/2000 -- 2536 440 2096 <br /> 7/22/2000 -- 2536 507 2029 <br /> 10/26/2000 -- 2536 468 2068 <br /> 1/17/2001 -- 2536 522 2014 <br /> 4/12/2001 — 2536 476 2060 <br /> 5/23/2001 -- 2536 4 85 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 ND<0 5 — <br /> 10/30/2001 — 2536 4 98 2038 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 8 18 <br /> 1129!2002 -- ZS 36 4 41 20 95 ND<5D -- ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 - <br /> 4130l2002 — 2536 472 2064 ND<50 - ND<0 5 ND-40 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 4 72 20 64 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 <br /> I <br /> 04/30/2003 P 2536 4 59 2077 <50 — <0 50 <0 50 <F50 <0 50 <2 5 — <br /> 07/30/2003 P 2536 518 2018 <50 - <0 50 <0 50 <0 50 <0 50 <0 50 10/29/2003 P 2536 502 2034 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <br /> -61/2612004 P 2536 4 66 2070 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <br /> 04/27/2004 P 2536 502 2034 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 <br /> AMW-5 12/10/1991A— E26 <br /> 2619 5 95 2024 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 - <br /> 3/25/19922619 539 20 80 72 -- 4 8 ND<0 30 ND<0 30 ND<0 30 — -_ <br /> 6/25/1992 19 7 27 18 92 ND<30 - Np<0 30 ND<0 30 ND<0 30 Np<0 30 <br /> Report Date July 13,2004 Page 6 of 25 <br />