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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 /> TOG 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) (pgll-) (ug1L) (pg/L) (pg/L) (pg/L) (mg/L) Comments <br /> MW-2 5/23/2001 -- 2633 581 2052 1 100 — 0 594 ND<0 5 ND<0 5 ND<1 5 1 330 _ <br /> 7/31/2001 — 2633 606 2027 1,600 — 203 ND<5 0 ND<5 0 ND<15 1,490 -- <br /> 10/30/2001 — 2633 612 2021 420 -- 113 575 462 232 363 -- <br /> 1/29/2002 -- 2633 557 2076 610 -- 865 ND<0 5 ND<0 5 ND<1 0 780 — <br /> 4/30/2002 — 2633 568 2065 2,600 — 394 ND<0 5 506 8 11 2,140 — <br /> 7/30/2002 P 2633 491 2142 ND<500 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 586 -- <br /> 10/31/2002 P 2633 576 2057 ND<50 — 27 1 3 ND<0 5 ND<0 5 13 — <br /> 01/30/2003 P 2633 576 2057 150 -- 096 <0 50 <0 50 <0 50 79 — <br /> 04/30/2003 P 2633 562 2071 67 - 88 <0 50 <0 50 <0 50 290 -- <br /> 07/30/2003 P 2633 564 2069 480 — 62 13 27 15 65 -- <br /> 10/29/2003 P 2633 603 2030 <50 -- <0 50 <0 50 <050 <0 50 055 — <br /> 01/26/2004 P 2633 584 2049 <50 -- <0 50 <0 50 <0 50 <0 50 91 -- <br /> 04/2812004 P 2633 584 2049 <50 -- <0 50 <0 50 <0 50 <0 5o <0 50 -- Water Level data from <br /> 4127/04 <br /> MW-3 9/2/1986 — — - 320,000 -- 5,000 2,000 — 1,000 — <br /> 2/9/1987 - - — — -- — — — — _ <br /> 9/21/1987 <br /> 10/20/1987 <br /> 11/20/1987 <br /> 3/13/1988 — 2521 473 2048 <br /> 3/23/1988 — 2521 479 2042 <br /> 6/7/1988 -- 2521 490 2031 <br /> 1018/1988 — 2521 545 1976 300,000 7,000 9,700 20 000 4,000 — - <br /> 2/15/1990 — 2521 435 21 07 — — -- -- -- — — — 0 27 It free product <br /> present,[a] <br /> 4/26/1990 -- 2521 473 2052 -- — — -- -- — -- 0 05 It free product <br /> present [a] <br /> 7/12/1990 — 2521 458 2064 -- -- -- - - — — — 0 01 It free product <br /> present,[a] <br /> 8/27/1990 — 2521 515 2006 — — — - — --11/2/1990 -- 2521 520 2001 <br /> 11/5/1990 — 2521 520 2001 35,000 — 850 560 1,900 5,600 -- -- <br /> 2/25/1991 - 2521 439 2082 9,800 - 110 47 300 j 590 — -- <br /> Report Date July 13,2004 Page 13 of 25 <br />