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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) (pg1L) (pglL) (pg1L) (pg1L) (pg/L) (pg1L) (pglL) (mg1L) Comments <br /> MW-8 10/15/1996 — 2566 650 1916 — - -- — -- - — <br /> 4/16/1997 — 2566 513 2053 -- - — — -- — — -- <br /> 10/15/1997 -- 2566 650 1916 — — - -- — -- -- - <br /> 3/17/1998 — 2566 603 1963 — — — -- — -- -- <br /> 1/6/1999 — 2566 659 1907 1,000 200 19 25 110 ND<l 0 -- <br /> 9/13/1999 - 2566 642 1924 150 — ND<l 0 ND<1 0 1 7 N0<1 0 26 — <br /> 1/19/2000 -- 2566 597 1969 460 -- ND<0 5 ND<0 5 38 26 34 -- <br /> 4/12/2000 -- 2566 647 1919 280 -- ND<0 5 ND<0 5 19 24 22 — <br /> 7/22/2000 -- 2566 640 1926 410 — ND<0 5 ND<0 5 42 28 3 5 -- <br /> 10/26/2000 -- 2566 640 1926 60 ND<0 5 ND<0 5 ND<0 5 ND<0 5 52 — <br /> 1/17/2001 -- 2566 — — -- -- -. — -- _ _ _ <br /> 4/12/2001 -- 2566 604 1962 280 - 215 1 08 728 351 135 -- <br /> 5/23/2001 — 2566 618 1948 76 — ND<0 5 ND<0 5 ND<0 5 ND<1 5 112 -- <br /> 7131/2001 -- 2566 640 1926 100 — N0<0 5 ND<0 5 ND<0 5 ND<1 5 958 — <br /> 10/30/2001 -- 2566 652 1914 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<i 5 51 -- <br /> 1/29/2002 — j 2566 582 1984 ND<50 — 0 519 ND<0 5 ND<0 5 ND<i 0 105 -- <br /> 4/30/2002 — 2566 613 1953 ND<250 ND<2 5 ND<2 5 ND<2 5 ND<5 0 135 — <br /> 7/30/2002 -- 2566 -- — — -- — -- — -- -- -- Area Under ConstrucUon- <br /> Not Sampled <br /> 10/31/2002 P 2566 623 1943 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<2 5 — <br /> 01/30/2003 P 2566 652 1914 <50 UJ — <0 50 UJ <0 50 UJ <0 50 UJ <0 50 UJ 7 9 J — <br /> 04/30/2003 P 2566 579 1 1987 <50 -- <0 50 <050 <050 <0 50 58 — <br /> 07/30/2003 P 2566 633 1933 <50 — <0 50 <0 50 <0 50 <0 50 37 -- <br /> 10/29/2003 P 2666 638 1928 <50 -- <0 50 <0 50 <0 50 <0 50 1 7 — <br /> 01/26/2004 P 2566 604 1962 <50 -- <0 50 <0 50 <0 50 <0 50 18 — <br /> 0412712004 P 25 66 1 655 1911 1 63 1 — I <0 50 1 <0 50 1 <0 50 1 <0 50 24 -- <br /> Report Date July 13, 2004 Page 24 of 25 <br />