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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 msi) (feet bgs) (feet msi) (pg/L) (pg/L) (pglL) (pglL) (pglL) (pg/L) (pglL) (mg/L) Comments <br /> AMW-1 4/26/1990 - 2653 535 2118 100 — ND<O 3 ND<O 3 ND<O 3 ND<O 3 — -- <br /> 7/12/1990 — 2653 558 2095 70 ND<O 3 ND<O 3 13 0 6 — <br /> 8/27/1990 -- 2653 598 2055 - - - - - - -- -- <br /> 11/2/1990 - 2653 594 2059 -- -- - -- - ~ '- <br /> 11/5/1990 - 2653 597 2056 ND<50 - ND<D 3 ND<O 3 ND<O 3 ND<O 3 - -- <br /> 2/25/1991 -- 26 53 479 2174 ND<50 - ND<O 3 ND<O 3 ND<O 3 ND<O 3 -- - <br /> 3/25/1991 - 26 53 475 2178 ND<30 - ND<O 30 ND<D 30 ND<O 30 ND<O 30 - - <br /> 6/27/1991 - 2653 589 2064 ND<50 -- ND<0 5 ND<O 5 ND<O 5 ND<O 5 -- <br /> 9/25/1991 - 2653 653 2000 ND<30 - ND<O 30 ND<O 30 ND<O 30 ND<O 30 - -- <br /> 12/10/1991 - 2653 567 20 86 45 -- ND<0 30 ND<O 30 ND<O 30 ND<O 30 -- -- <br /> 6/25/1992 - 26 53 662 1991 ND<30 -- ND<O 30 ND<O 30 ND<O 30 ND<O 30 - - <br /> 12/8/1992 -- j 2653 565 2088 ND<50 - ND<O 5 NO<O 5 ND<O 5 ND<O 5 - -- <br /> 3/10/1993 -- 2653 4771 76 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<O 5 - - <br /> 6/16/1993 - 2653 527 2126 - <br /> 10/22/1993 -- 2653 589 2064 - -- - -- - ~ <br /> 1/24/1994 - 2653 538 21 15 <br /> 6/7/1994 -- 2653 581 2072 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<O 5 N0<5 0 33 <br /> 9/13/1994 - 2653 646 2007 -- - - - - - - - <br /> 1/10/1995 - 2653 4 86 21 67 - -- - - - -- <br /> 3/23/1995 - 2653 460 21 93 ND<50 -- ND<O 50 ND<0 50 ND<0 50 ND<1 0 - 83 <br /> 10/4/1995 -- 2653 622 2031 <br /> 1/4/1996 -- 2653 512 2141 -- <br /> 3/29/1996 - 2653 452 2201 ND<50 - N:D 0::5:t ND<1 1113<1 ND<i ND<10 34 <br /> 7/1/1996 -- 2653 510 2143 - -- - - -- - - - <br /> 10/15/1996 - 2653 531 2122 -- - - -- - -- - <br /> 4/16/1997 - 2653 3 88 2265 -- - <br /> 10/15/1997 2653 604 2049 -- - -- - - -3/17/1998 - 2653 560 2093 - <br /> 1/6/1999 - 2653 555 2098 - - <br /> 9/13/1999 - 26 53 510 2143 -- - -- - -- - ~ - <br /> 1/19/2000 - 2653 519 2134 - - - -- -" <br /> 4/12/2000 - 2653 612 2041 - - - - `- - - - <br /> 7/22/2000 - 26 53 59 <br /> I <br /> Report Date Apnl 8,2005 Page 1 of 27 <br /> I <br />