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! i ! <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Retail Site No 11194 <br /> 2375 Tracy BIvd, 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) (pg1L) (pg1L) (pgIL) (ErgIL) (pg1L) (091L) (mglL) Comments <br /> AMW-6 1/4/1996 -- 2668 568 21 00 ND<50 ND<0 50 ND<0 50 ND<O 50 ND<1 0 68 1 4 <br /> 3/29/1996 -- — -- — ND<50 — ND<0 5 ND<1 ND<1 ND<1 ND<10 — QC-2 <br /> 3/29/1996 — 2668 546 21 22 60 -- ND<0 5 ND<1 ND<1 ND<1 26 35 <br /> 7/1/1996 — -- -- -- ND<50 -- ND<0 5 ND<1 ND<1 ND<1 ND<10 -- QC-2 <br /> 7/1/1996 -- 2668 601 2067 ND<50 — ND<O 5 ND<1 ND<1 ND<1 ND<10 4 9 <br /> 10/15/1996 -- 2668 621 2047 ND<50 ND<O 5 ND<1 0 ND<1 0 ND<1 0 ND<10 56 <br /> 4/16/1997 2668 487 2181 -- -- — _ _ — <br /> 10/15/1997 2668 860 1808 — - -- -- -- — -- <br /> 3/1711998 - 2668 813 1855 -- <br /> 1/6/1999 -- 2668 511 2157 — - — -- -- — - — <br /> 9/13/1999 - 2668 523 2145 -- -- - - -- -- - <br /> 1/19/2000 -- 2668 478 2190 <br /> 4/12/2000 -- 2668 501 2167 <br /> 7/22/2000 — 2668 522 21 46 <br /> 10/26/2000 -- 2668 408 2260 -- -- — — -- — <br /> 1/17/2001 -- 2668 541 2127 -- - — - -- _ _ <br /> 4/12/2001 -- 2668 502 2166 -- -- — — _ <br /> 5/23/2001 -- 2668 4 86 2182 710 -- ND<O 5 ND<O 5 151 ND<1 5 840 — <br /> 7/31/2001 - 2668 463 2205 140 -- ND<0 5 144 ND<0 5 176 11 3 -- <br /> 10/30/2001 - 2668 478 21 90 ND<250 -- ND<2 5 ND<2 5 ND<2 5 ND<7 5 ND<2 5 -- <br /> 1/29/2002 -- 2668 456 2212 ND<50 — ND<0 5 ND<O 5 ND<0 5 ND<1 0 431 -- <br /> 4/30/2002 -- 2668 471 2197 ND<250 -- ND<2 5 ND<2 5 ND<2 5 ND<5 0 763 -- <br /> 7/30/2002 P 2668 472 21 96 ND<500 — ND<5 ND<5 ND<5 ND<10 465 -- <br /> 10/31/2002 P 2668 440 2228 ND<50 -- ND<0 5 ND<O 5 ND<0 5 ND<O 5 19 — <br /> 01/30/2003 P 2668 9 30 1738 <50 -- <0 50 <0 50 <0 50 <0 50 41 320 <br /> 04/30/2003 P 2668 476 2192 <50 <0 50 <0 50 <0 50 <0 50 23 -- <br /> 07/30/2003 P 2668 520 2148 260 R 16 <25 <25 <25 16 — <br /> 10/29/2003 P 2668 449 2219 <50 -- <0 50 <0 50 <0 50 <0 50 27 -- <br /> 01/26/2004 P 2668 488 21 80 <50 -- <050 <0 50 <0 50 <0 50 16 -- <br /> 04/27/2004 P 2668 472 21 96 <50 - <0 50 <0 50 <0 50 4 3 093 — <br /> 07/30/2004 P 2668 5 21 2147 <50 — <0 50 <0 50 <0 50 <0 50 057 — <br /> 10/28/2004 P 2668 488 21 80 <50 -- <0 50 <0 50 <0 50 <0 50 069 -- <br /> 01/31/2005 P 2668 477 21 91 <50 - <0 50 <0 50 <0 50 061 1 7 — <br /> Report Date October 13, 2005 Page 10 of 28 <br />