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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 P/ Elevation Water Elevation TPI-Ig TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet ms]) (pg/L) (prg1L) (pg/L) (pg1L) (pg1L) (p91) (p91L) OWL) Comments <br /> MW-4 6/7/1994 — 2590 598 1992 23,000 — 210 30 720 1,200 138 32 <br /> 9/13/1994 — -- — — 5,600 -- 21 13 220 500 — — QC-1 <br /> 9/13/1994 — 2590 483 2107 5,100 -- 86 1 280 510 — 62 <br /> 9/13/1994 — 2590 642 1948 9,000 — 20 15 240 550 68 7 <br /> 1/10/1995 — — — — 2,300 — 74 1 220 380 — — QC-1 <br /> 3/23/1995 — 2590 4 72 2125 — — — — — — — -- 0 09 ft free product <br /> present,[a] <br /> 10/4/1995 — 2590 594 2007 — -- — - — -- — — 0 14 ft free product <br /> present,(a] <br /> 1/4/1996 -- 2590 512 2078 1,700 — 27 25 36 58 25 08 <br /> 3/29/1996 — 2590 497 2093 1,300 — 76 ND<1 36 32 ND<10 24 <br /> 7/1/1996 -- 2590 557 2033 11,000 — 160 49 590 836 ND<100 4 <br /> 10/15/1996 — -- — — 1,100 -- 22 ND<5 0 75 85 ND<50 47 QC-1 <br /> 10/15/1996 — 2590 577 2013 2,100 -- 39 ND<10 160 190 ND<100 47 <br /> 4/16/1997 — 2590 533 2057 5,000 — 173 ND<5 0 775 767 131 37 <br /> 10/15/1997 -- 2590 571 2019 510 — 29 ND<1 0 91 636 25 73 <br /> 3/17/1998 — 2590 4 87 2103 890 -- 3 6 ND<1 0 51 88 620 63 <br /> 1/6/1999 — 2590 542 2048 4,100 -- 11 19 180 110 84 — <br /> 9/13/1999 — 2590 562 2028 2,400 — 42 65 89 21 330 — <br /> 1/19/2000 — 2590 515 2075 5,200 — 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 2000 — 16 N0<0 5 27 24 23 - <br /> 1/17/2001 — 2590 535 2055 820 -- 949 1 35 58 7 135 401 -- <br /> 4/12/2001 — 2590 535 2055 1,600 -- 14 556 786 113 556 -- <br /> 5/23/2001 w 2590 551 2039 2,700 — 135 539 775 281 471 — <br /> 7/31/2001 -- 2590 585 2005 1 400 -- 83 108 22 8 11 105 -- <br /> 10/30/2001 — 2590 605 1985 390 — 4 06 193 0 526 ND<1 5 253 — <br /> 1/29/2002 — 2590 498 2092 720 — 454 292 3 96 ND<1 0 39 — <br /> 4/30/2002 — 2590 522 2068 2,100 — 411 374 329 N D<5 0 105 -- <br /> 7/30/2002 P 2590 559 2031 1,100 — 108 1 19 335 621 395 — <br /> 10/31/2002 P 2590 550 2040 1,900 — 4 2 36 7 6 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 — 0 84 J <0 50 93 36 41 — <br /> Report Date June 21,2005 Page 18 of 28 <br /> I <br />