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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 TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (pg1L) (pglL) (pglL) (Fig/L) (pg/L) (jrgll-) (mg/L) Comments <br /> AMW-5 10/15/1996 — 2619 627 1992 ND<250 — 10 ND<5 0 ND<5 0 ND<5 0 27,000 64 <br /> 4/16/1997 — 2619 4 84 2135 — — -- — -- -- — — <br /> 10/15/1997 — 2619 604 2015 <br /> 3/17/1998 — 2619 560 20 59 - -- - — -- — — <br /> 1/6/1999 — 2619 579 2040 — — — -- -- -- -- — <br /> 9/13/1999 -- 2619 557 2062 — — — — -- -- — -- <br /> 1/19/2000 -- 2619 569 2050 — — — -- -- — -- - <br /> 4/12/2000 — 2619 534 2085 -- - <br /> 7/22/2000 — 2619 597 2022 -- - — — — — -- <br /> 10/26/2000 -- 2619 490 2129 -- -- — — — -- — <br /> 1/17/2001 — 2619 610 2009 <br /> 4/12/2001 — 2619 586 2033 — -- — — — — -- -- <br /> 5/23/2001 — 2619 593 2026 580 — 178 1 439 323 165 612 — <br /> 7/31/2001 — 2619 607 2012 2 100 — 153 ND<2 5 ND<2 5 ND<7 5 2,470 — <br /> 10/30/2001 — 2619 596 2023 1,900 — N0<5 0 ND<5 0 ND<5 0 NO<15 2,180 — <br /> 1129/2002 -- 2619 549 2070 290 -- 368 1 85 126 601 109 — <br /> 4/30/2002 — 2619 566 2053 1 900 — 201 ND<0 5 407 ND<1 0 1,640 — <br /> 7/30/2002 P 2619 691 1928 ND<500 -- ND<5 ND<5 ND<5 ND<10 781 -- <br /> 10/31/2002 P 2619 588 2031 50 -- 066 ND<0 5 ND<0 5 ND<0 5 19 -- <br /> 01/30/2003 P 2619 577 2042 52 — <050 <0 50 <0 50 092 24 - <br /> 04/30/2003 P 2619 553 2066 <50 -- <0 50 <0 50 <0 50 <0 50 76 -» <br /> 07/30/2003 P 2619 611 2008 300 R -- 94 <25 <2 5 <2 5 44 10/29/2003 P 2619 605 2014 <50 — <0 50 <0 50 <0 50 <0 50 47 — <br /> 01/26/2004 P 2619 574 2045 <50 - <0 50 <0 50 <0 50 <0 50 58 - <br /> 04/27/2004 P 2619 595 2024 <50 -- <0 50 <0 50 <0 50 <0 50 i 1 — <br /> 07/30/2004 P 2619 628 1991 92 — 29 <0 50 <0 50 <0 50 1 7 -- <br /> 10/28/2004 P 2619 5 88 2031 <50 — <0 50 <0 50 <0 50 <0 50 29 <br /> 0113112005 P 2619 553 1 2066 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> AMW-6 12/10/1991 — 2668 585 2083 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 3/25/1992 — 2668 486 2182 97 — 43 ND<0 30 74 61 — -- <br /> 6/2511992 — 2668 700 1968 ND<30 ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 12/8/1992 - -- — — ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — QC-2 <br /> 12/8/1992 - 26 68 582 2086 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - - <br /> Report Date April 8,2005 Page 8 of 27 <br />