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• • ! <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 DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (ug/L) (uglL) (erg/L) (ug1L) (pg1L) (p IL) (mg1L) Comments <br /> MW-5 3/10/1993 — 2545 1211 1334 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 6/16/1993 — 2545 1013 1532 73 -- 22 21 39 57 — -- <br /> 10/2211993 — 2545 499 2046 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 — <br /> 1/24/1994 2545 891 1654 120 — 11 06 26 26 ND<5 0 = <br /> 6/7/1994 2545 638 1907 ND<50 N0<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 <br /> 9/13/1994 — 2545 599 1946 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 -- <br /> 1/10/1995 -- 2545 435 2110 ND<50 — ND<0 5 ND<0 5 ND<0 5 N0<1 -- -- <br /> 3/23/1995 — -- -- -- 620 -- 20 25 55 53 — — 4C-1 <br /> 3/23/1995 — 2545 419 2126 910 — 23 3 68 65 — 79 <br /> 10/4/1995 -- 2545 541 2004 ND<50 — 22 ND<0 50 069 ND<1 0 7 8 69 <br /> 1/4/1996 — 2545 462 2083 130 -- 46 1 1 45 37 87 26 <br /> 3/29/1996 — 2545 445 2100 490 — 27 ND<1 20 12 13 27 <br /> 7/1/1996 _ 2545 501 2044 580 — 35 5 30 13 11 37 <br /> 10/15/1996 -- 2545 523 2022 380 — 39 12 86 124 34 55 <br /> 4/16/1997 - 2545 390 2155 — — — — — -- — — <br /> 10/15/1997 — 2545 508 2037 -- -- — -- -- -- -- -- <br /> 3/17/1998 — 2545 470 2075 — — - -- -- - — -- <br /> 1/6/1999 -- 2545 491 2054 — -- - -- - -- -- <br /> 1/1912000 — 2545 465 2080 <br /> 4/12/2000 — 2545 560 1985 — — — — — — — — <br /> 7/22/2000 — 2545 499 2046 -- -- -- - — — — <br /> 10/26/2000 — 2545 457 2088 — -- — — — — -- - <br /> 1/17/2001 -- 2545 515 2030 <br /> 4/12/2001 — 2545 4 83 2062 _ -- - — — - -- - <br /> 5/23/2001 — 2545 485 2060 120 -- 0 653 ND<0 5 ND<0 5 ND<1 5 619 — <br /> 7/31/2001 - 2545 512 2033 340 -- 121 ND<0 5 0 527 ND<l 5 463 -- <br /> 10/30/2001 — 2545 497 2048 390 -- 424 ND<0 5 215 N0<1 5 509 — <br /> 1/29/2002 - 2545 446 2099 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<l 0 4 93 — <br /> 4/30/2002 - 2545 475 2070 100 -- ND<0 5 ND<0 5 ND<0 5 ND<1 0 383 — <br /> 7/30/2002 P 2545 492 2053 600 -- 232 ND<2 5 429 ND<5 579 — <br /> 10/31/2002 P 2545 500 2045 81 -- 17 ND<0 5 ND<0 5 ND<0 5 13 <br /> 01/30/2003 P 2545 479 2066 77 -- <0 50 <0 50 <0 50 <0 50 38 — <br /> 04/30/2003 P 2545 469 2076 74 -- <0 50 <0 50 <0 50 <0 50 17 — <br /> Report Date December 16,2004 Page 19 of 26 <br />