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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 PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg1L) (pgIL) (pglL) (pg/L) (ug/L) (pg/L) (pg/L) (mglL) Comments <br /> MW-2 9/13/1999 -- 2633 561 2072 480 — 35 73 ND<5 0 ND<5 0 99,000191,000 — <br /> 1/19/2000 -- 2633 561 2072 800 — 11 ND<0 5 ND<0 5 12 84,000 — <br /> 4/12/2000 — 2633 613 2020 1,600 -- 42 ND<0 5 ND<0 5 ND<0 5 11,000 — <br /> 7/22/2000 — 2633 598 2035 3,800 — 63 0 86 063 72 90,000 -- <br /> 10/26/2000 — 2633 501 2132 1,100 — 09 ND<0 5 ND<0 5 069 3,400 — <br /> 1/17/2001 -- 2633 514 21 19 18,000 — 109 ND<5 0 ND<5 0 ND<5 0 28,200 — <br /> 4/12/2001 — 2633 581 2052 700 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 946 — <br /> 5/23/2001 -- 2633 581 2052 1,100 — 0 594 N0<0 5 ND<0 5 ND<1 5 1,330 — <br /> 7131/2001 -- 2633 606 2027 1,600 -- 203 ND<5 0 N0<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 N0<0 5 ND<1 0 780 -- <br /> 4/30/2002 2633 568 2065 2,600 -- 394 ND<0 5 506 811 2,140 — <br /> 7/30/2002 P 2633 491 2142 ND<500 — ND<0 5 N0<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 — <050 <0 50 <0 50 <0 50 055 -- <br /> 01/26/2004 P 2633 584 2049 <50 — <0 50 <0 50 <0 50 <0 50 91 — <br /> 04/28/2004 P 2633 584 2049 <S0 -- <0 50 <0 50 <0 50 <0 50 <0 50 — Water Level data from <br /> 4127104 <br /> 0713012004 P 2633 609 2024 130 -- 54 <0 50 <0 50 <0 50 <0 50 <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 /> 10/8/1988 — 2521 545 1976 300 000 — 7,000 9,700 20,000 4,000 1 - <br /> 2/15/1990 -- 2521 435 2107 -- -- -- — -- — -- -- 0 27 ft free product <br /> present,[a] <br /> Report Date September 10,2004 Page 13 of 26 <br />