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Table 'I <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) (pg/L) (pg)L) WWI-) (ugIL) (pg/L) (pg/L) (mg1L) Comments <br /> MW-3 07/30/2004 P 2521 528 1993 <50 - <0 50 <0 50 <050 <4 50 19 - <br /> 10/28/2004 - 2521 464 2057 - -- - - -- -- - -- Sampled Annually 3rd <br /> Quarter <br /> 01/31/2005 2521 440 2081 - - - - - -- - - Sampled Annually 3rd <br /> Quarter <br /> 04/2912005 - 2521 471 2050 - - - - - - - - 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 /> I 9/21/1987 -- - - - 14,000 - 620 83 -- 1,600 - - <br /> 10/20/1987 -- - -- 4,900 - 50 ND<O 5 - ND<O 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 1 6 1 3 - - <br /> 6/7/1988 -- 2590 525 2065 - - - _ <br /> 10/18/1988 -- 2590 555 2035 1,100 -- 75 28 13 35 -- <br /> 2/15/1990 2590 490 2100 1,800 -- 370 43 130 98 - <br /> 4/26/1990 - 2590 505 2085 - - - - __ - - <br /> 7/12/1990 -- 2590 516 2074 3,100 -- 510 41 220 320 - <br /> 8/27/1990 - 2590 546 2044 -- -- - - - <br /> 11/2/1990 - 2590 551 20 39 - - - -- - <br /> 11/5/1990 - 2590 553 2037 950 330 18 52 29 <br /> 2/25/1991 - 2590 473 21 17 370 -- 120 33 22 13 _ <br /> 6/27/1991 - 2590 564 2026 1,500 - 130 ND<O 5 21 18 -- _ <br /> 9/25/1991 - 2590 660 1930 810 - 70 49 12 110 -- <br /> 12/10/1991 -- 2590 543 2047 1,300 - 100 1 14 62 110 -- <br /> 3/25/1992 -- 2590 489 21 013,400 - 500 40 210 320 -- <br /> 6/25/1992 2590 711 1910 - - -- -- -- -- - - 0 40 It free product <br /> present,(a) <br /> 12/8/1992 -- 2590 539 20 51 - - - - - - - - Sheen <br /> 3/10/1993 - 25k 495 2095 - - - -- - -- -- - Sheen <br /> 6/16/1993 -- 2590 547 20 43 -- - -- - -- - - - Sheen <br /> EEE10/22/1993 - 25 90 550 2040 - - - - -- - - - Sheen <br /> 1/24/1994 - 25 90 554 20 36 6,900 - 881 16 130 340 582 - <br /> Report Date June 21,2005 Page 17 of 28 <br />