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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 Hate P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE 00 <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (f g/L) (Wg/L) U/9/L) (E.g/L) (pg/L) MIL) (mg/L) Comments <br /> MW 3 12/10/1991 2521 526 1997 0 03 ft free product <br /> present,[a] <br /> 3/25/1992 2521 420 2102 - - 0 01 ft free product <br /> present,[a) <br /> 6/25/1992 2521 652 1915 - - 0 60 ft free product <br /> present,[a] <br /> 12!8/1992 2521 503 2041 - 0 30 ft free product <br /> present,[a] <br /> 3/10/1993 2521 429 2092 - Sheen <br /> 6/16/1993 2521 484 2037 - Sheen <br /> 10/22/1993 - 2521 489 2032 Trace <br /> 1/24/1994 2521 1270 1251 NM0 ND<0 5 ND<0 5 ND<0 5 ND<0 5 157 <br /> 6/7/1994 2521 1320 1201 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- - <br /> 9/13/1994 2521 1160 1361 ND<50 33 ND<0 5 ND<0 5 19 ND<5 0 <br /> 1/10/1995 2521 552 1969 240 9 4 12 38 - <br /> 3/23/1995 2521 412 21 09 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 76 <br /> 10/4/1995 -- -- ND<50 ND<0 50 ND<0 50 077 ND<1 0 ND<5 0 QC-1 <br /> 10/4/1995 2521 533 1988 NO<50 054 ND<0 50 1 2 1 1 ND<5 0 48 <br /> 1/4/1996 2521 584 1943 - -- - - 0 08 ft free product <br /> present [a] <br /> 3/29/1996 2521 568 1961 0 10 ft free product <br /> present, [a] <br /> 7/1/1996 2521 623 1903 0 06 ft free product <br /> present,[a] <br /> 10/15/1996 2521 645 1878 0 03 ft free product <br /> present,[a] <br /> 4/16/1997 - -- -- ND<500 ND<5 0 ND<10 0 ND<10 0 ND<10 0 ND<100 - QC-1 <br /> 4/16/1997 2521 475 2047 2,300 - 37 ND<10 0 170 170 ND<100 4 3 0 01 ft free product <br /> Present,[a] <br /> 10/15/1997 -- 2521 518 2003 690 55 31 16 11 1 11 6 5 <br /> 3/17/1998 -- -- ND<5 0 08 ND<1 0 ND<1 0 ND<1 0 ND<10 - QC-1 <br /> 3/17/1998 2521 424 2097 ND<5 0 09 ND<1 0 ND<1 0 ND<1 0 ND<10 66 <br /> 1/6/1999 2521 485 2036 90 2 ND<1 0 ND<1 0 ND<1 0 39 - <br /> 9/13/1999 2521 501 2020 ND<250 - ND<5 0 ND<5 0 ND<5 0 ND<5 0 86 <br /> 1/19/2000 2521 451 2070 ND-50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 14 -- <br /> 4/12/2000 - 2521 529 19 92 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 30 <br /> Report Date December 1,2005 Page 16 of 29 <br />