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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) (fig/l.) WglL) (pglL) (pglL) (pg/L) (pg/L) WWI-) (mg/L) Comments <br /> AMW-2 6/25/1992 — 2645 684 1961 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 12/8/1992 — 2645 528 2117 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 3/10/1993 -- 2645 4 68 2177 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — <br /> 6/16/1993 — 2645 489 2156 _ — -- — — — — <br /> 10/22/1993 — 2645 538 2107 <br /> 1/24/1994 _ 2645 506 2139 — — -- -- — _ — <br /> 6/7/1994 — 2645 551 2094 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 35 <br /> 9/13/1994 2645 616 2029 -- — -- — .- — _ <br /> 1/10/1995 — 2645 472 2173 — - _ _ _ — _ <br /> 3/23/1995 -- 2645 440 2205 62 — ND<0 50 ND<0 50 ND<0 50 ND<1 0 — 97 <br /> 10/4/1995 — 2645 592 2053 -- — -- — — _ _ — <br /> 1/411996 — 2645 490 2155 — — — -- _ .. _ — <br /> 3/29/1996 — 2645 473 2172 ND<50 — ND<0 5 NNI ND<1 ND<1 ND<10 32 <br /> 7/1/1996 — 2645 528 21 17 _ -- — — .. _ _ <br /> 10/15/1996 — 2645 549 2096 <br /> 4/16/1997 — 2645 413 2232 — - <br /> 10/15/1997 — 2645 567 2078 — _ — -- — — — — <br /> 3/17/1998 — 2645 523 2122 -- <br /> 1/6/1999 — 2645 523 2122 — <br /> 9/13/1999 — 2645 519 2126 — <br /> 1/19/2000 -- 26.4.5 4 89 2156 — <br /> 4/12/2000 -- 2645 509 2136 — <br /> 7/22/2000 -- 2645 549 2096 -- - <br /> 10/26/2000 — 2645 535 2110 1 —1/17/2001 — 2645 540 2105 — -- — - -- — _ <br /> 4/12/2001 — 2645 515 2130 — _ — -- — — <br /> 5/23/2001 -- 2645 531 2114 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<1 5 ND<0 5 - <br /> 7/31/2001 -- 2645 557 2088 ND<50 — ND<0 5 ND<0 5 ND<0 5 N0<1 5 ND<0 5 — <br /> 10/30/2001 -- 2645 548 2097 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<1 5 ND<0 5 — <br /> 1/29/2002 — 2645 477 2168 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 <br /> 4/3012002 — 2645 513 21 32 1 N0<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 -- <br /> 7/30/2002 P 2645 545 21 00 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 — <br /> 10/31120021 P 1 2645 543 2102 ND<50 -- ND<0 5 ND<0 5 ND<0 5 1 ND<0 5 ND<2 5 — <br /> Report Date June 21,2005 Page 3 of 28 <br />