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i 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 ms]) (ig1L) (dig/L) (lig1L) (lrg/L) (pg/L) (pg/L) (lrg1L) (mglL) Comments <br /> MW-3 1/6/1999 2521 485 2036 90 -- 2 ND<1 0 ND<l 0 ND<1 0 39 — <br /> 9113/1999 — 2521 501 2020 ND<250 -- ND<5 0 ND<5 0 ND<5 0 ND<5 0 86 — <br /> 1/19/2000 - 2521 4 51 2070 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 14 -- <br /> I <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 20 16 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 12 <br /> 10/26/2000 -- 2521 460 2061 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 34 — <br /> 1/17/2001 — 2521 4 61 2060 ND<50 -- ND<0 5 353 0 846 453 471 -- <br /> 4/12/2001 -- 2521 475 2046 130 -- 072 ND<0 5 0 503 166 131 -- <br /> 5/23/2001 — 2521 492 2029 590 — ND<0 5 ND<0 5 ND<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 1999 ND<250 -- ND<2 5 N13<2 5 ND<2 5 ND<7 5 485 -- <br /> 1129l2002 — 2521 4 05 21 16 170 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 199 -- <br /> 4/30/2002 - 2521 4 70 2051 310 -- ND<2 5 ND<2 5 ND<2 5 ND<5 0 207 — <br /> 7/30/2002 P 2521 4 99 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<O 5 ND<0 5 ND<0 5 ND<0 5 88 — <br /> 01/30/2003 P 2521 473 2048 <50 — <0 50 <0 50 <0 50 <0 50 15 -- <br /> 04/30/2003 P 2521 4 61 2060 <50 -- <0 50 <0 50 <0 50 <0 50 99 — <br /> 07/30/2003 P 2521 513 2008 <50 - <0 50 <050 <0 50 <0 50 29 -- <br /> 10/29/2003 P 2521 505 2016 <50 -- <0 50 <0 50 <0 50 <0 50 51 — <br /> 01/26/2004 P 2521 456 2065 <50 — <0 50 <0 50 <0 50 <0 50 15 -- <br /> 04/27/2004 P 2521 504 2017 <50 — <0 50 <0 50 <0 50 <0 50 27 -- <br /> 07/30/2004 P 2521 528 1993 <50 <050 <0 50 <0 50 <0 50 19 -- <br /> 10/28/2004 - 2521 464 2057 -- — — -- -- -- -- — Sampled Annually 3rd <br /> Quarter <br /> 01/3112005 — 2521 440 2081 -- -- — — — — — -- Sampled Annually 3rd <br /> Quarter <br /> MW-4 9/2/1986 — -- — — 48,000 — 3,000 3,200 — 4,700 -- — <br /> 2/9/1987 - — — — 14,000 - 230 160 -- 880 -- — <br /> 9/21/1987 - — — — 14,000 — 620 83 -- 1,600 — — <br /> 10/20/1987 — -- — — 4,900 -- 50 ND<0 5 -- ND<0 5 — <br /> 11/20/1987 — — — — 2,500 -- 240 7,300 — 260 -- - <br /> 3/13/1988 -- 2590 504 2086 -- -- _ _ _ _ <br /> 3/23/1988 -- 2590 508 2082 76 -- 10 16 — 1 3 — - <br /> Report Date April 8,2005 Page 16 of 27 <br />