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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 P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (pg/L) (4/1-) (pglL) (pg/L) (pg/L) (pg/L) (mg/L) Comments <br /> AMW-4 12!811992 -- 2536 474 2062 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 3/10/1993 -- 2536 428 2108 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- - <br /> 6/16/1993 -- 2536 4 06 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 /> 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 2114 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<l - 71 <br /> 3/23/1995 - 2536 398 2138 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 59 <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 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 /> 4/1611997 - 2536 367 2169 - - - - - - - - <br /> 10/15/1997 -- 2536 512 2024 - - _ -- -- -- -- -- <br /> 3117/1998 - 2536 471 2065 - - - - - - -1/611999 -- 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 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 20 25 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<1 5 ND<0 5 -- <br /> 10/30/2001 -- 2536 498 2038 ND<50 - ND<0 5 ND<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 20 64 ND<50 - ND<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 1 2536 495 1 2041 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<2 5 - <br /> 01/30/2003 P 1 2536 472 1 20 64 1 <50 1 - <0 50 <0 50 <0 50 <0 50 <0 50 - <br /> Report Date December 15,2004 Page 6 of 26 <br />