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Table 9 <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 Pl Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (ig/L) (E►g/L) WWL) (pglL) W/L) (ugIL) (pgll-) OWL) Comments <br /> AMW-4 3/25/1991 -- 2536 426 2110 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 - -- <br /> 6/27/1991 - 2536 501 2035 ND<50 _ ND<D 5 ND<0 5 ND<0 5 ND<0 5 _ <br /> 9/25/1991 — 2536 545 1991 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- — <br /> 12/10/1991 2536 479 2057 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 -. <br /> 6/25/1992 -- 2536 616 1920 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 12/8/1992 — 2536 474 2062 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 3/10/1993 — 2536 4 28 2108 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 — - <br /> 6/16/1993 2536 406 2130 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 _ — <br /> 10/22/1993 -- 2536 485 2051 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 — <br /> 1/24/1994 2536 481 2055 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 -- <br /> 6f7/1994 - 2536 530 2006 ND<50 -- ND<0 5 ND<D 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 6 9 <br /> 1/10/1995 - 2536 422 2114 ND<50 _ ND<0 5 ND<0 5 ND<D 5 ND<1 - 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 ND<5 0 5 9 <br /> 1/4/1996 - 2536 448 2088 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<5 0 1 <br /> 3/29/1996 2536 432 21 04 ND<50 - ND<0 5 ND<1 ND<1 ND<1 ND<10 37 <br /> 7/1/1996 2536 4 88 2048 ND<50 ND<D 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 <br /> 2169 <br /> 10/15/1997 — 2536 512 2024 <br /> 3/17/1998 2536 471 2065 <br /> 1/6/1999 -- 2536 483 2053 <br /> 9/13/1999 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 2536 468 2068 <br /> 1/17/2001 -- 2536 522 2014 <br /> 4/12/2001 - 2536 4 76 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<D 5 ND<0 5 ND<1 5 ND<0 5 -- <br /> 10/30/2001 2536 4 98 2038 ND<50 I ND<0 5 ND<0 5 ND<0 5 ND<1 5 818 - <br /> Report Date April 8,2005 Page 6 of 27 <br />