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i i i r <br /> 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 ME DO <br /> Number Sampled ISP (feet msl) (feet bgs) (feet msl) (pg1L) (pg/L) (pg/L) (1rg/L) (pg1L) (pg/L) (pg/L) (mglL) Comments <br /> MW-3 1/24/1994 -- 2521 1270 12 51 ND<50 - ND<0 5 ND<0 5 141D<0 5 ND<0 5 15 7 — <br /> 617I1994 - 2521 1320 12 01 —WD-_<50 -- —ND --- <br /> <0 5 ND<0 5 ND<0 5 ND<0 5 - — <br /> 9/13/1994 - 2521 1160 13 61 ND<5Q -- 3 3 ND<0 5 ND<0 5 19 ND<5 0 <br /> 1/10/1995 2521 552 1969 240 — 9 4 12 38 <br /> 3123!1995 -- 25 21 4 12 21 09 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 50 077 ND<1 0 ND<5 0 -- QC-1 <br /> 10/4/1995 25 21 5 33 1988 ND<50 054 ND<0 50 12 1 1 ND<5 0 4 8 <br /> 1/4/1996 — 25 21 584 1943 -- -- -- - - 0 08 ft free product <br /> present,[a] <br /> 3/29/1996 25 21 5 fib 19 61 -- -- — -- — — 0 10 ft free product <br /> present,[a] <br /> 7/1/1996 — 2521 623 1903 -END<5 <br /> -- — — -- 0 06 ft free product <br /> present,[a] <br /> 10/15/1996 - 25 21 6 45 18 78 -- -- 0 03 ft free product <br /> present,[a] <br /> 4/16/1997 -- ND<500 ND<10 0 ND<10 0 ND<10 0 ND<100 -- QC-1 <br /> 4/16/1997 -- 25 21 4 75 20 47 2,300 — 37 ND<10 0 170 170 ND<100 43 0 01 ft free product <br /> present,[a] <br /> 10/15/1997 -- 2521 _—F-1 8 20 03 690 -- 55 31 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 2521 424 2097 ND<5 0 -- 09 ND<1 0 ND<1 0 ND<i 0 ND<10 66 <br /> 1/6/1999 - 2521 4 85 2036 90 - 2 ND<1 0 ND<1 0 ND<1 0 3 9 <br /> 9/13/1999 - 2521 501 2020 ND<250 __ ND<5 0 ND<5 0 ND<5 0 ND<5 0 86 - <br /> --ill 912000 2521 __Z51 20 70 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 14 — <br /> 4/12/2000 — 2521 529 1992 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 30 .- <br /> 7/22/2000 — 2521 505 2016 ND<50 ND<0 5 ND<0 5 N0<0 5 ND<0 5 12 -- <br /> 10/26/2000 -- 2521 460 20 61 ND<50 -- ND<0 5 ND<0 5 N6<0 5 ND<0 5 34 — <br /> 1/17/2001 -- 2521 461 20 60 ND<50 — ND<0 5 1 353 0 846 453 471 -- <br /> 4/12/2001 -- 2521 475 2046 130 — 072 ND<0 5 0 503 166 131 -- <br /> 5/23/2001 -- 2521 4 92 20 29 590 — ND<0 5 ND<0 5 ND<0 5 ND<1 5 828 -- <br /> 7/31/2001 — 2521 515 2006 1 1,600 -- ND<0 5 ND<0 5 ND<0 5 ND<1 5 2,350 — <br /> 10/30/2001 -- 2521 522 1999 ND<250 -- ND<2 5 ND<2 5 ND<2 5 ND<7 5 485 -- <br /> 1l29/2002 — 2521 405 21 16 170 - ND<0 5 ND<0 5 ND<0 5 ND<1 0 199 - <br /> 4/30l2002 -- 2521 4 70 20 51 310 — ND<2 5 ND<2 5 ND<2 5 ND<5 0 207 — <br /> 7/30/2002 P 2521 4 99 20 22 ND<50 - 0 991 ND<0 5 ND<0 5 ND<1 0 1,280 - <br /> Report Date October 13,2005 Page 16 of 28 <br />