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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 PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (ugIL) (mg/L) (pg/L) (dug/L) (rglL) (pg1L) WIL) (mg/L) Comments <br /> MW-3 4/26/1990 -- 2521 473 2052 — — — — — — — — 0 05 ft free product <br /> present,[a] <br /> 7/12/1990 -- 2521 458 2064 — — - — — — — — 0 01 ft free product <br /> present,[a] <br /> 8/27/1990 — 2521 515 2006 — — — — — — —11/211990 -- 2521 520 2001 -- -- -- -- — — — -- <br /> 11/5/1990 — 2521 520 2001 35,000 — 850 560 1,900 5,600 -- -- <br /> 2/25/1991 — 2521 439 2082 9,800 — 110 47 300 590 -- — <br /> 6/27/1991 — 2521 541 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 ft free product <br /> present,[a] <br /> 12/10/1991 — 2521 526 1997 — — — — — — — -- 0 03 ft free product <br /> present,[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 2041 — - — — — — -- 0 30 It free product <br /> present,[a] <br /> 3/10/1993 — 2521 4 29 2092 ISheen <br /> 6/16/1993 -- 2521 484 2037 — — — — — — — — Sheen <br /> 10/22/1993 — 2521 489 2032 -- — - -- — - - Trace <br /> 1124/1994 — 2521 1270 1251 N0<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 157 — <br /> 6/7/1994 -- 2521 1320 1201 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 1 9 ND<5 0 — <br /> 1/10/1995 — 2521 552 1969 240 — 9 4 12 38 — — <br /> 3/23/1995 — 2521 412 21 09 ND<50 — ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 76 <br /> 10/4/1995 — — -- — ND<50 — ND<0 50 ND<0 50 077 ND<1 0 ND<5 0 -- QC-1 <br /> 10/4/1995 -- 2521 533 1988 ND<50 -- 054 ND<0 50 12 11 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 ft free product <br /> present,[a] <br /> Report Date September 10,2004 Page 14 of 26 <br />