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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) (feet bgs) (feet msl) (pg1L) (frgIL) (Irg/L) (p91L) (pg1L) WWL) (P9/L) (mg'!-) Comments <br /> MW-7 1/10/1995 -- 2650 622 2028 -- — — — — — — <br /> 3/23/1995 — 2650 616 2034 ND<50 — ND<0 50 ND<0 50 ND<0 50 ND<1 0 — 89 <br /> 10/4/1995 — 2650 731 1919 — — — — -- — _ — <br /> 1/4/1996 — 2650 685 1965 — — - — -- — _ — <br /> 3/29/1996 — 2650 649 2001 ND<50 — ND<0 5 ND<1 ND<i ND<1 ND<10 39 <br /> 7/1/1996 — 2650 704 1946 — — — — — -- — — <br /> 10/15/1996 — 2650 727 1923 <br /> 4/16/1997 — 2650 585 2065 — — — — -- -- - — <br /> 10/15/1997 -- 26 50 727 1923 -- -- -- - - - - <br /> 3/17/1998 - 2650 659 1991 1 - - - - - -- -116M999 - 2650 698 1952 -- <br /> 1/19/2000 — 2650 680 1970 -- <br /> 4/1212000 — 2650 693 1957 — <br /> 7/22/2000 — 2650 699 1951 -- — — — -- -- — - <br /> 10/26/2000 — 2650 694 1956 1,300 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 8,600 — <br /> 111712001 — 26 50 — — -- — — -- — — — — <br /> 4/12/2001 — 2650 695 1955 -- -- -- — — -- -- -- <br /> 5/23/2001 — 2650 694 1956 320 — ND<0 5 ND<0 5 ND<0 5 ND<1 5 426 — <br /> 7/31/2001 -- 2650 723 1927 680 — ND<0 5 ND<0 5 ND<0 5 ND<1 5 959 — <br /> 10/30/2001 -- 2650 716 1934 200 — ND<0 5 ND<0 5 ND<0 5 ND<1 5 227 — <br /> 1/29/2002 -- 2650 663 1987 140 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 171 — <br /> 4/30/2002 — 2650 687 1963 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 — <br /> 7/30/2002 P 2650 713 1937 59 — ND<0 5 ND<0 5 ND<0 5 ND<1 0 754 — <br /> 10/31/2002 P 2650 700 1950 86 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 210 — <br /> 01/30/2003 P 2650 706 1944 <500 UJ — <5 0 UJ <5 0 UJ <5 0 UJ <5 0 UJ 310 J — <br /> 04/30/2003 P 2650 673 1977 <50 -- <0 50 <0 50 <0 50 <0 50 53 — <br /> 07/30/2003 P 2650 712 1938 <50 — <0 50 <0 50 <0 5o <050 17 -- <br /> 10/29/2003 P 2650 718 1932 <50 — <0 50 <0 50 <0 50 <0 50 14 -- <br /> 01/26/2004 P 2650 688 1962 <50 — <2 5 <2 5 <2 5 <2 5 77 — <br /> 04/28/2004 P 2650 723 1927 <50 — <0 50 <0 50 <0 50 <0 50 30 -- Water Level data from <br /> 4/27/04 <br /> 07/30/2004 P 2650 751 18 99 <50 -- <0 50 <0 50 <0 50 <0 50 23 — <br /> 10/28/2604 P 2650 714 1936 <50 — <0 50 <0 50 <0 50 <0 50 21 — <br /> Report Date June 21,2005 Page 24 of 28 <br />