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Table '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 msl) (feet bgs) (feet msl) (erg/L) (pg/L) (pg/L) (pg1L) (pg/L) U41-) (pg/L) (mg/L) Comments <br /> MW-4 07/30/2003 P 2590 580 2010 260 — <1 2 <1 2 <1 2 <1 2 49 — <br /> 10/29/2003 P 2590 563 2027 1,300 -- 34 J <1 0 55 J <1 0 79 J -- <br /> 01/26/2004 P 2590 530 20 60 770 -- <50 <50 <50 <50 16 — <br /> 04/28/2004 P 2590 547 2043 130 -- <0 50 <0 50 <0 50 <0 50 84 -- Water Level data from <br /> 4127104 <br /> 07130/2004 P 2590 597 1993 270 — 053 <050 069 <0 50 31 -- <br /> 10/28/2004 P 2590 554 2036 2,000 - <50 <50 10 <50 120 - <br /> 01/31/2005 P 2590 502 2088 900 - 075 <0 50 2 9 058 35 -- <br /> 04!2912005 P 2590 5 34 2056 390 - 080 <0 50 092 <0 50 25 — <br /> MW-5 2/9/1987 -- — - — 41,000 — 2,300 2,500 — 6,220 -- -- <br /> 9/21/1987 -- — -- -- 18,000 — 790 14 — 2,200 — — <br /> 10/20/1987 — — -- — 34,000 - 50 ND<0 5 — 1,200 — — <br /> 11/20/1987 -- -- -- -- 8,700 - 210 6,600 — 230 — — <br /> 3/13/1988 — 2545 473 2072 -- — — — .. _ .- .. <br /> 3/23/1988 — 2545 479 2066 6,200 — 420 5 -- 600 -- -- <br /> 6/7/1988 — 2545 4 85 2060 — — — — _ _ <br /> 10/18/1988 — 2545 545 2000 1,300 -- 34 0 9 1 170 — — <br /> 2/15/1990 — 2545 445 21 00 1,900 — 220 21 330 250 -- — <br /> 4/26/1990 -- 2545 4 65 2080 — — — — _ _ <br /> 7/12/1990 -- 2545 472 2073 4,400 -- 140 94 130 300 — - <br /> 8/27/1990 — 2545 515 2030 — — — — — -- _ .. <br /> 11/2/1990 — 2545 520 2025 -- — -- -- _ _ <br /> 11/5/1990 -- 2545 521 2024 7 500 — 430 55 760 1,600 - -- <br /> 2/25/1991 — 2545 429 21 16 2,400 -- 160 59 120 96 - - <br /> 6/27/1991 2545 534 2011 ND<50 -- 67 ND<0 5 ND<0 5 ND<0 5 — - <br /> 9/25/1991 -- 2545 574 1971 1,800 - 120 3 9 79 94 -- - <br /> 12/10/1991 -- 2545 510 2035 720 — 46 34 38 58 - -- <br /> 3/25/1992 -- 2545 432 21 13 550 -- 75 033 4 3 2 — .- <br /> 6/25/1992 — 2545 — — -- - — — _ — <br /> 12/8/1992 — 2545 1162 1383 <br /> 3/10/1993 — 2545 1211 13 34 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 6/16/1993 — 2545 1013 1532 73 — 22 21 39 57 -- — <br /> 10/22/1993 — 2545 4 99 2046 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 N0<5 0 - <br /> Report Date June 21,2005 Page 19 of 28 <br />