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• i • <br /> Table 'I <br /> I <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 ms1) (feet bgs) (feet msl) (pg/L) (Ng/L) (lug1L) (pglL) (pg/L) (Erg/L) (pg/L) (mg/L) Comments <br /> AMW-6 04/27/2004 P 2668 472 2196 <50 — <0 50 <0 50 <0 50 43 093 -- <br /> 07/30/2004 P 2668 521 2147 <50 — <0 50 <0 50 <0 50 <0 50 057 — <br /> MW-1 2/9/1987 — -- -- -- ND<50 — ND<0 5 ND<0 5 — ND<0 5 -- — <br /> 9/21/1987 — — -- ND<50 — ND<0 5 ND<0 5 — ND<0 5 -- -- <br /> 10/20/1987 -- -- — -- ND<50 — ND<0 5 ND<0 5 -- ND<0 5 — — <br /> 11/20/1987 -- -- — — ND<50 — N0<0 5 ND<0 5 — ND<0 5 _ <br /> 3/13/1988 -- 2688 588 2100 -- <br /> 3/23/1988 — 2688 588 2100 ND<50 — ND<0 5 ND<0 5 -- ND<D 5 — — <br /> 6/7/1988 -- 2688 595 2093 — - -- — -- — — <br /> 10/18/1988 — 2688 625 2063 ND<50 — N0<0 5 ND<0 5 ND<0 5 ND<0 5 - — <br /> 2/15/1990 — 2688 595 2093 ND<50 -- N0<0 3 ND<0 3 ND<0 3 ND<0 3 — -- <br /> 4/26/1990 — 2688 608 2080 <br /> 7/12/1990 -- 2688 611 2077 ND<50 — ND<0 3 N0<0 3 ND<0 3 ND<0 3 — -- <br /> 8/27/1990 — 2688 545 2143 <br /> 11/2/1990 -- 2688 651 2037 — — -- -- -- _ .- <br /> 11/5/1990 — 2688 653 2035 ND<50 -- ND<0 3 ND<0 3 ND<0 3 ND<0 3 _ — <br /> 2/25/1991 — 2688 575 21 13 ND<50 -- ND<0 3 ND<0 3 ND<0 3 ND<0 3 — — <br /> 6/27/1991 -- 2688 666 2022 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- <br /> 9/25/1991 — 2688 704 1984 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 12/10/1991 -- 2688 646 2042 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- — <br /> 3/25/1992 -- 2688 595 2093 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 — <br /> 6/25/1992 -- 2688 802 1886 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- — <br /> 12/8/1992 -- 2688 644 2044 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- — <br /> 3/10/1993 — 2688 601 2087 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 6/16/1993 -- 2688 567 2121 — — — — — -- -- — <br /> 10/22/1993 — 2688 649 2039 — -- -- — -- _ <br /> 1/24/1994 — 2688 638 2050 <br /> 6/7/1994 -- 2688 684 2004 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 34 <br /> 9/13/1994 — 2688 713 1975 -- - -- -- — — — <br /> 1/10/1995 -- 2688 593 2095 — — - — — _ _ _ <br /> 3/23/1995 -- 2688 568 2120 ND<50 — ND<0 50 ND<0 50 ND<0 50 ND<1 0 1 971 <br /> 10/4/1995 -- 2688 696 1992 -- -- — -- — — — <br /> 1/4/1996 — 2688 624 2064 <br /> Report Date September 10,2004 Page 10 of 26 <br />