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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) (fest bgs) (feet msl) (lig1L) ("91L) (KIL) (Irg1L} (pg/L) (Fig/L) (uglL) (mg/L) Comments <br /> MW-3 6/27/1991 — 2521 5 41 1986 36 000 -- 210 71 690 2,200 -- — 0 08 ft free product <br /> present,[a) <br /> 9/25/1991 — 2521 615 1938 -- — -- -- .- — -- 0 42 it free product <br /> present,[a] <br /> 12/10/1991 — 2521 526 1997 — — — -- - — — -- 0 03 ft free product <br /> ____— — Epresent,[a) <br /> 3/25/1992 — 2521 420 2102 -- — — — -- -- — -- 0 01 ft free product <br /> present [a) <br /> 6/25/1992 — 2521 652 1915 — -- -- _ _ -- - 0 60 ft free product <br /> present [a] <br /> 12/8/1992 - 2521 503 20 41 — - — -- — -- — - 0 30 ft free product <br /> present,[a] <br /> 3/10/1993 — F 25 21 —429 2092 — -- — -- - — -- -- ISheen <br /> 6/16/1993 -- 2521 484 2037 -- -- — — -- — Sheen <br /> 10/22/1993 -- 2521 489 20 32 — -- -- — - — Trace <br /> 1/24/1994 -- 2521 __i_2_70 ____1_251 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 15 7 — <br /> 6/7/1994 -- 2521 1320 12 01 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 — _ <br /> 9/13/1994 — 2521 11 60 1361 ND<50 -- 33 ND<0 5 ND<0 5 19 ND<5 0 -- <br /> 1/10/1995 2521 552 1 1969 240 — 9 4 12 38 — <br /> 3/23/1995 -- 2521 412 2109 ND<50 — ND<0 50 ND<0 50 ND<0 50 ND<i 0 — 76 <br /> 10/4/1995 — — -- — ND<50 — ND<0 50 ND<0 50 0 77 ND<1 0 ND<5 0 — QC-1 <br /> 10/4/1995 — 25 21 533 1988 ND<50 — 054 ND<0 50 12 1 1 ND<5 0 4 8 <br /> 1/4/1996 — 2521 584 1943 — -- -. — -- — -- - 0 08 ft free product <br /> present,[a] <br /> 3/29/1996 — 2521 568 1961 -- — -- — — — — — 010 ft free product <br /> present,[a] <br /> 7/1/1996 - 2521 623 1903 -- — -- — — — -- -- 0 06 It free product <br /> present,[a] <br /> 10/15/1996 — 25 21 645 1878 — — — -- — -- — — 0 03 It free product <br /> present,[a] <br /> 4/16/1997 — -- — -- ND<500 — ND<5 0 ND<10 0 ND<10 0 ND<10 0 ND<100 -- QC-1 <br /> 4/16/1997 — 25 21 475 2047 2 300 — 37 ND<10 0 170 170 ND<100 4 3 0 01 ft free product <br /> 10/15/1997 — 2521 518 2003 690 present,[a] <br /> — 55 3 1 16 11 1 11 6 5 <br /> 3/17/1998 -- — — — ND<5 0 — 08 ND<1 0 ND<1 0 ND<1 0 ND<10 -- QC-1 <br /> 3/17/1998 25 21 424 20 97 ND<5 0 — 09 ND<i 0 ND<1 0 1 ND<1 0 ND<10 66 <br /> Report Date April 8,2005 Page 15 of 27 <br />