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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 PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (pg1L) (pg1L) (ug1L) (pg1L) (pg1L) (pg/L) (mg/L) Comments <br /> MW-1 7/31/2001 — 2688 668 2020 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 273 — <br /> 10/30/2001 — 2688 658 2030 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 0 536 — <br /> 1/29/2002 — 2688 606 2082 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 -- <br /> 4/30/2002 — 2688 626 2062 N0<50 -- ND<0 5 ND<0 5 ND<0 5 ND<l 0 ND<0 5 - <br /> 7/30/2002 P 2688 551 21 37 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 10/31/2002 P 2688 630 2058 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<2 5 - <br /> 01/30/2003 P 2688 640 2048 <50 -- <0 50 <0 50 <0 50 054 <0 50 — <br /> 04/30/2003 P 2688 614 2074 <50 -- <050 <0 50 <0 50 <0 50 <2 5- <br /> 07/30/2003 P 26 88 686 2002 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 10/29/2003 P 2688 669 2019 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 01/26/2004 P 2688 638 2050 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 04/27/2004 P 2688 658 2030 <50 -- <050 <0 50 <0 50 <0 50 <0 50 -. <br /> 07/30/2004 P 2688 691 1997 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 10/28/2004 -- 2688 678 2010 — -- — — — — — -- Sampled Annually 3rd <br /> Quarter <br /> 01/31/2005 -- 2688 598 2090 -- -- — — -- — -- Sampled Annually 3rd <br /> Quarter <br /> MW-2 11/20/1987 -- - -- — ND<50 — ND<0 5 ND<0 5 -- ND<0 5 -- — <br /> 3/13/1988 -- 2633 567 2066 <br /> 3/23/1988 — 2633 563 20 70 ND<50 — ND<0 5 ND<0 5 - ND<0 5 — -- <br /> 6R/1988 -- 2633 570 2063 <br /> 1011811988 — 2633 570 2063 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 — - <br /> 2/15/1990 -- 2633 535 2098 50 — 43 08 07 1 6 — -- <br /> 4/26/1990 — 2633 550 2083 — — _ _ -- <br /> 7/12/1990 2633 548 2085 80 — 04 1 3 05 15 — — <br /> 8/27/1990 — 2633 580 2053 -- -- -- — — _ _ <br /> 11/2/1990 — 2633 585 2048 <br /> 19/5/1990 — 2633 587 2046 ND<50 -- ND<0 3 ND<0 3 ND<0 3 ND<0 3 -- — <br /> 2/25/1991 - 2633 534 2099 ND<50 — ND<0 3 ND<0 3 ND<0 3 N0<0 3 — -- <br /> 6/27/1991 -- 2633 607 2026 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 9/25/1991 2633 636 1997 ND<0 30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 - - <br /> 12/10/1991 2633 586 2047 ND<0 30 — ND<0 30 N13<0 30 ND<0 30 ND<0 30 — -- <br /> 3/25/1992 -- 2633 5 42 20 91 240 — 42 1 8 08 38 - — <br /> Report Date April 8,2005 Page 12 of 27 <br />