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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Service Station 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) (ug/l-) (uglL) (ugll-) (.ug/L) (Erg/L) (og/L) Cpg/L) (mg/L) Comments <br /> MW4 1/19/2000 — 2590 515 2075 5200 - 72 ND<0 5 93 37 29 <br /> 4/12/2000 -- 2590 580 2010 8,300 - 71 55 200 61 55 - <br /> 7/22/2000 -- 2590 567 2023 2,900 - 81 28 63 19 46 -- <br /> 10/26/2000 — 2590 520 2070 2,000 -- 16 ND<0 5 27 24 23 -- <br /> 1/17/2001 -- 2590 535 2055 820 -- 949 1 35 587 135 401 -- <br /> 4l12/2001 — 2590 535 2055 1 600 — 14 556 786 1 113 556 -- <br /> 5/2312001 -- 2590 551 2039 2 700 — 135 539 775 281 471 <br /> 7/31/2001 — 2590 585 2005 1,400 83 108 228 11 105 — <br /> 10/30/2001 — 2590 605 1985 390 -- 406 1 93 0 526 ND<1 5 253 — <br /> 1/29/2002 2590 498 2092 720 -- 454 292 396 ND<1 0 39 -- <br /> 4/30/2002 — 2590 522 2068 2,100 — 411 374 329 ND<5 0 105 -- <br /> 7/30/2002 P 2590 559 2031 1 100 108 119 335 621 395 -- <br /> 10/31/2002 P 2590 550 2040 1,900 — 42 36 76 10 10 -- <br /> 01/30/2003 P 2590 531 2059 600 — 14 <0 50 27 086 32 <br /> 04/30/2003 P 2590 515 2075 1,200 - 084 J <0 50 93 36 41 — <br /> 07/30/2003 P 2590 580 2010 260 - <12 <12 <12 <1 2 49 <br /> 10/29/2003 P 2590 563 2027 1 300 — 34 J <10 55 J <10 79 J -- <br /> 01/26/2004 P 2590 530 2-0- 60 770 - <50 <5 0 <50 <50 16 — <br /> 04/28/2004 P 2590 547 2043 130 -- <0 50 <050 <0 50 <0 50 8 4 -- Water Level data from <br /> 4/27104 <br /> MW-5 2/9/1987 — -- -- -- 41,000 — 2,300 2 500 6,220 — -- <br /> 9/21/1987 -- — - 18,000 -- 790 14 -- 2,200 — <br /> 10/20/1987 -- — - - 34 000 -- 50 ND<0 5 -- 1 200 <br /> 11/20/1987 -- — — — 8 700 210 6,600 — 230 -- <br /> 3/13/1988 -- 2545 473 2072 — - _ — _ -- _ <br /> 3/23/1988 — 2545 479 2066 6,200 — 420 5 — 600 — -- <br /> 6/7/1988 2545 485 2060 — — -- __ -. _ <br /> 10/18/1988 - 2545 545 2000 1,300 - 34 09 1 170 -- — <br /> 2/15/1990 2545 445 2100 1 900 - 220 21 330 250 — <br /> 4/26/1990 2545 465 2080 -- — -- _ __ _ <br /> 7/12/1990 - 2545 472 2073 4,400 — 140 94 130 300 -- - <br /> 8/27/1990 — 2545 515 2030 -- - — _ _ <br /> 11/2/1990 — 2545 520 2025 <br /> Report Date July 13,2004 Page 17 of 25 <br />