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• • <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) (uglL) (pg1L) (ug/L) (Erg/L) (Erg/L) (pg/L) (Erg/L) (mg/L) Comments <br /> MW-5 10/30/2001 -- 2545 497 2048 390 — 424 ND<O 5 215 ND<1 5 509 — <br /> 1/29/2002 -- 2545 446 2099 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<l 0 4 93 — <br /> 4/30/2002 — 2545 475 2070 100 — ND<O 5 ND<O 5 ND<O 5 ND<1 0 383 — <br /> 7/30/2002 P 2545 492 2053 600 -- 232 ND<2 5 429 ND<5 579 -- <br /> 10/31/2002 P 2545 500 2045 81 -- 17 ND<O 5 ND<O 5 ND<0 5 13 <br /> 01/30/2003 P 2545 4 79 2066 77 -- <0 50 <0 50 <0 50 <0 50 38 - <br /> 04/30/2003 P 2545 4 69 2076 1 74 -- <0 50 <0 50 <0 50 <0 50 17 -- <br /> 07/30/2003 P 2545 522 2023 1 120 14 <10 <1 0 <1 0 67 — <br /> 10/29/2003 P 2545 509 2036 114- -- 077 <0 50 <0 50 <0 50 18 -- <br /> 01/26/2004 P 2545 475 2070 <50 — <050 <0 50 <0 50 <0 50 12 -- <br /> 04/27/2004 P 2545 497 2048 65 — <0 50 <0 50 <0 50 <0 50 90 -- <br /> 07/30/2004 P 2545 530 2015 <50 - <050 <0 50 <0 50 <0 50 4 3 - <br /> 10/28/2004 -- 2545 474 2071 — -- -- -- — -- — Sampled Annually 3rd <br /> Quarter <br /> 01/31/2005 — 2545 447 2098 -- -- - -- - -- - Sampled Annually 3rd <br /> Quarter <br /> 04/29/2005 -- 2545 4 80 2065 -- -- — -- — -- -- — Sampled Annually 3rd <br /> Quarter <br /> 07/2912005 P 25 45 5 25 2020 <50 .- <0 50 <0 50 <0 50 <0 50 9 4 -- <br /> MW-6 2/9/1987 — -- 13,000 — 100 210 -- 2,200 — — <br /> 9/21/1987 — - -- 370,000 4,000 77 -- 4,400 — — <br /> 10/20/1987 -- — - -- 5,300 -- 210 4 -- 97 — <br /> 11/20/1987 -- -- — -- 270 -- ND<O 5 1,800 -- 9 <br /> 3/13/1988 — 2563 438 2125 -- - -- .. .. _ <br /> 3/23/1988 — 2563 442 2121 6,300 - 490 69 1,100 <br /> 6/7/1988 -- 2563 470 2093 — -- -- -- — _ — <br /> 10/18/1988 — 2563 678 1885 2,800 -- 140 43 81 370 - - <br /> 2/15/1990 -- 2563 425 21 38 5,700 — 220 21 330 250 -- — <br /> 4/26/1990 -- 2563 450 2113 -- -- -- — _ _ _ <br /> 7/12/1990 2563 468 2095 14,000 -- 590 18 1,100 750 — -- <br /> 8/27/1990 - 2563 -- -- -- — — — — <br /> 11/2/1990 — 2563 -- — — __ _ -- -- — <br /> 11/5/1990 -- 2563390 02 20 61 19,000 — 390 17 1,200 650 — -- <br /> Report Date October 13,2005 Rage 21 of 28 <br />