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f i � <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 DQ <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pglL) (pg1L) (Erg/L) (pg1L) (ugIL) (pglL) (pg1L) (mg/L) Comments <br /> MW-4 3/29/1996 -- 2590 4 97 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 4 7 <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 487 2103 890 — 36 ND<1 0 51 88 620 63 <br /> 1/6/1999 — 2590 542 2048 4,100 -- 11 19 180 1 110 84 -- <br /> 9/13/1999 -- 2590 562 2028 2,400 — 42 65 89 21 330 <br /> 9/19/2000 -- 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 2 8 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 -- 949 135 587 135 401 — <br /> 4/12/2001 — 2590 535 2055 1,600 -- 14 556 78 6 113 556 <br /> 5/23/2001 -- 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 — 406 193 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 1 19 335 621 395 — <br /> 10/31/2002 P 2590 550 2040 1,900 -- 42 36 76 10 10 <br /> 01/3012003 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 /> 07/30/2003 P 2590 580 2010 260 — <1 2 <1 2 <1 2 <1 2 49 — <br /> 10/29/2003 P 2590 563 2027 1,300 — 34 J <1 0 55 1 <1 0 79J — <br /> 01/26/2004 P 2590 530 2060 770 — <50 <50 <50 <5 0 16 - <br /> 04/28/2004 P 2590 547 2043 130 — <0 50 <0 50 <0 50 <0 50 84 — Water Level data from <br /> 4127/04 <br /> 07/3012004 P 2590 597 1993 270 — 053 <0 50 069 <0 50 31 » <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 — 1200 — <br /> Report Date September 10,2004 6 <br /> Page 17 of 26 <br />