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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 ms]) (pglL) (pg1L) (pg/L) UMIL) (pg/L) (pg/L) (pglL) (mglL) Comments <br /> AMW-5 10/30/2001 — 2619 596 2023 1900 -- ND<5 0 ND<5 0 ND<5 0 ND<15 2,180 — <br /> 1/29/2002 — 2619 549 2070 290 — 368 1 85 126 601 109 — <br /> 4/30/2002 — 2619 566 2053 1,900 -- 201 ND<O 5 407 ND<1 0 1,640 — <br /> 7/30/2002 P 2619 691 1928 ND<500 — N0<5 ND<5 ND<5 ND<10 781 — <br /> 10/31/2002 P 2619 588 2031 50 — 066 ND<O 5 ND<O 5 ND<O 5 19 — <br /> 01130/2003 P 2619 577 2042 52 — <0 50 <0 50 <0 50 092 24 -- <br /> 04/30/2003 P 2619 553 2066 <50 — <0 50 <0 50 <050 <0 50 76 — <br /> 07/30/2003 P 2619 611 2008 300 R — 94 <2 5 <2 5 <2 5 44 — <br /> 10/29/2003 P 2619 605 2014 <50 — <0 50 <0 50 <0 50 <0 50 47 — <br /> 01/26/2004 P 2619 574 2045 <50 -- <0 50 <0 50 <0 50 <0 50 5 8 <br /> 04/27/2004 P 2619 595 2024 <50 -- <0 50 <0 50 <0 50 <0 50 1 1 -- <br /> 07/30/2004 P 2619 1 628 1 1991 92 -- 29 <0 50 <0 50 <0 50 17 -- <br /> AMW-6 12/10/1991 — 2668 585 2083 ND<30 — ND<O 30 ND<O 30 ND<O 30 ND<O 30 — — <br /> 3/25/1992 — 2668 4 86 2182 97 — 43 ND<O 30 74 61 — -- <br /> 6/25/1992 — 2668 700 1968 ND<30 — ND<O 30 ND<O 30 ND<O 30 ND<O 30 -- — <br /> 12/8/1992 -- — — -- ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- — QC-2 <br /> 12/8/1992 -- 2668 582 2086 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — -- <br /> 3/10/1993 -- — — -- ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — — QC-2 <br /> 3/10/1993 - 2668 547 2121 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — — <br /> 6/16/1993 -- — — ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<0 5 — — QC-2 <br /> 6/16/1993 — 2668 348 2320 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — — <br /> 10/22/1993 — — -- — ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 — QC-2 <br /> 10/22/1993 2668 590 2078 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 — <br /> 1/24/1994 — — — — ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — — QC-2 <br /> 1/24/1994 — — — -- ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- QC-1 <br /> 1/24/1994 — 2668 578 2090 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 — <br /> 607/1994 -- -- — ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — -- QC-2 <br /> 607/1994 — 2668 623 2045 ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 — 34 <br /> 9/13/1994 -- — — — ND<50 — ND<O 5 ND<0 5 ND<O 5 ND<O 5 — — QC-2 <br /> 9/13/1994 — 2668 639 2029 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 82 <br /> 1/10/1995 — — — — ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<1 — — QC-2 <br /> 1/10/1995 — 2668 1 540 2128 ND<50 — 1 ND<O 5 3 2 — 64 <br /> 3/23/1995 — — — -- ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<1 0 — - QC-2 <br /> Report Date September 10,2004 Page 8 of 26 <br />