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0 <br /> i <br /> 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) (pglL) (pgIL) (P9/L) (pglL) (E.g/L) (pglL) (mgIL) Comments <br /> MW-3 1/4/1996 — 2521 584 1943 — — — - -- -- — — 0 08 It 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 It free product <br /> present,[a] <br /> 10115/1996 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 -- 25 21 4 75 20 47 2,300 — 37 ND<10 0 170 170 ND<100 43 0 01 ft free product <br /> 4 present,[a] <br /> 10/15/1997 -- 2521 518 2003 690 — 55 31 16 11 1 11 65 <br /> 3/17/1998 — -- — ND<5 0 - 0 8 ND<1 0 ND<1 0 N0<1 0 ND<10 — IQC.i <br /> 3/17/1998 -- 25 21 424 20 97 N0<5 0 - 0 9 ND<1 0 N6<1 0 ND<l 0 ND<10 66 <br /> 1/6/1999 -- 2521 4 85 2036 90 — 2 ND<1 0 ND<l 0 ND<l 0 3 9 -- <br /> 9113/1999 -- 2521 501 20 20 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<D 5 ND<0 5 ND<0 5 ND<0 5 14 -- <br /> 4/12/2000 -- 2521 529 1992 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 30 -- <br /> 7/22/2000 — 2521 505 2016 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 12 <br /> 10/26/2000 -- 25 21 460 2061 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 34 -- <br /> 1/17/2001 -- 2521 461 20 60 ND<50 — ND<0 5 ----S53 0 846 453 4 71 — <br /> 4/12/2001 -- 2521 475 20 46 130 — 072 ND<0 5 0 503 166 131 -- <br /> 5/23/2001 — 2521 492 2029 590 — ND<0 5 ND<0 5 N13<0 5 ND<1 5 828 — <br /> 7/31/2001 — 2521 515 2006 1,600 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 2,350 -- <br /> 10/30/2001 — 2521 522 19 99 ND<250 — ND<2 5 ND<2 5 ND<2 5 ND<7 5 48 5 <br /> j 1/29/2002 — 2521 405 21 16 170 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 199 — <br /> 4/30/2002 — 2521 470 2051 310 -- ND<2 5 ND<2 5 ND<2 5 ND<5 0 207 — <br /> 7/30/2002 P 2521 499 2022 ND<50 — 0 991 ND<0 5 ND<0 5 ND<1 0 1,280 <br /> 10/31/2002 P 2521 491 2030 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 88 -- <br /> 01/30/2003 P 2521 4 73 2048 <50 -- <0 50 <0 50 <0 50 <0 50 15 — <br /> 04/30/2003 P 2521 461 2060 <50 — <0 50 <0 50 <0 50 <0 50 99 — <br /> 07/30/2003 P 2521 513 2008 <50 — <0 50 <0 50 <0 50 <0 50 29 — <br /> 10/29/2003 P 2521 505 2016 <50 — <050 <0 50 <0 50 <0 50 51 — <br /> 01/26/2004 P 2521 456 20 65 <50 -- <0 50 <0 50 <0 50 <0 50 15 -- <br /> 04127l2004 P 25 21 504 2017 <50 — <0 50 <0 50 <0 50 <0 50 27 — <br /> Report Date June 21,2005 Page 16 of 28 <br />