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i • <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Service Station No 11194 <br /> 2375 Tracy Blvd, Tracy CA <br /> I <br /> Top of Depth to Water Level Ethyl- Total <br /> Well Date P/ Casing Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP Elevation (feet bgs) (feet msl) (pglL) (figlL) (pg/L) (pg/L) (pg/L) (pg/L) (pglL) (mg/L) Comments <br /> AMW-1 10/26/2000 - 2653 580 2073 -- - - - -- - "- <br /> 1l1712001 - 1 2653 588 2065 - - -- - - - - - <br /> 4I1212001 - 2653 536 2117 - -- -- - - - '" <br /> 5/23/2001 - 2653 565 2088 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<O 5 <br /> 7/31/2001 - 2653 605 2048 69 - ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<O 5 -- <br /> 10/30/2001 - 2653 611 2042 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<1 5 ND<O 5 <br /> 1/2912002 2653 486 21 67 ND<50 - ND<O 5 ND<O 5 ND<Q 5 ND<1 0 ND<O 5 - <br /> 4/30/2002 - 2653 491 21 62 ND<50 -- ND<O 5 N0<0 5 ND<Q 5 ND<1 0 ND<Q 5 - <br /> 7/30/2002 P 2653 591 2062 N0<50 - ND<O 5 ND<O 5 ND<O 5 ND<1 0 ND<O 5 - <br /> 10/31/2002 P 2653 551 2102 ND<50 -- ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<2 5 -- <br /> 01/30/2003 P 2653 539 1 21 14 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 04l3012003 P 2653 521 2132 <50 - <0 50 <0 50 <0 50 <0 50 <2 5 -- <br /> Q7/3012003 P 2653 600 2053 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 10/29/2003 P 2653 581 2072 <50 <0 50 <0 50 <0 50 <0 50 <0 50 - <br /> 01/26/2004 P 2653 520 2133 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> AMW-2 4!2611990 -- 2645 494 2151 ND<50 -- ND<O 3 ND<O 3 ND<Q 3 ND<O 3 - - <br /> 7/12/1990 -- 2645 5 21 2124 ND<50 -- ND<O 3 ND<0 3 ND<O 3 ND<0 3 -- <br /> 8/27/1990 -- 2645 5 46 2099 '- <br /> 11/211990 - 2645 5 47 20 98 - - - - — <br /> 11I5l1990 - 26 45 5 49 2096 ND<50 - ND<Q 3 ND<0 3 ND<O 3 ND<0 3 -- - <br /> 2125/1991 -- 2645 456 2189 ND<50 -- ND<O 3 ND<O 3 ND<O 3 N0<0 3 - -- <br /> 3/25/1991 - 2645 470 2175 ND<30 - ND<O 30 ND<0 30 ND<O 30 N0<0 30 ~ <br /> 6/27/1991 - 26 45 5 60 20 85 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- - <br /> 9125l1991 - 2645 607 2038 ND<30 - ND<0 30 ND<Q 30 ND<0 30 ND<D 30 - -- <br /> 12/10/1991 - 2645 534 21 11 ND<30 - ND<O 30 ND<O 30 ND<O 30 ND<O 30 -- - <br /> 6/25/1992 -__2645 684 1961 ND<30 -- ND<O 30 ND<O 301 ND<O 30 ND<Q 30 - -- <br /> 12/8/1992 -- 2645 528 2117 ND<50 -- ND<0 5 ND<O 51 ND<O 5 ND<O 5 -- - <br /> 3/10/1993 -- 2645 468 2177 ND<50 - ND<Q 5 ND<O 5 ND<O 5 ND<O 5 -- - <br /> 6/16/1993 - 2645 489 2156 - -- - -- - - -' <br /> 10/22/1993 - 2645 538 2107 - - - -' <br /> 1/24/1994 -- 2645 506 21 - <br /> 6/7/1994 -- 2645 551 2094 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<Q 5 ND<5 0 35 <br /> 9/13/1994 - 2645 616 2029 <br /> Page 2 of 24 <br /> Report Date Apnl 28, 2004 <br />