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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 PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pgIL) (pg/L) (pg/L) (pg/L) WgIL) (mg1L) (pg/L) (mgIL) Comments <br /> MW-11 07129/2005 P 2688 688 2000 <50 -- <0 5o <0 50 <0 50 <0 50 <0 5o <br /> MW-2 11/20/1987 -- -- -- — ND<50 -- ND<O 5 ND<O 5 — ND<O 5 — <br /> 3/13/1988 — 2633 567 2066 <br /> 3/23/1988 -- 2633 563 2070 ND<50 -- ND<O 5 ND<O 5 -- ND<O 5 -- — <br /> 6/7/1988 — 2633 570 2063 <br /> 10/18/1988 -- 2633 570 2063 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- <br /> 2/15/1990 — 2633 535 2098 50 43 0 8 0 7 16 — -- <br /> 4/26/1990 -- 2633 550 2083 -- -- — — _ <br /> 7/12/1990 2633 548 2085 80 -- 04 1 3 0 5 15 -- — <br /> 8/27/1990 -- 2633 580 2053 -- — -- -- -- — <br /> 11/2/1990 -- 2633 585 2048 <br /> 11/5/1990 — 2633 587 2046 ND<50 -- ND<O 3 ND<O 3 ND<O 3 ND<O 3 — — <br /> 2125/1991 2633 534 2099 ND<50 — ND<O 3 ND<O 3 ND<O 3 ND<O 3 -- -- <br /> 6/27/1991 2633 607 2026 ND<50 — ND<O 5 ND<O 5 N0<0 5 ND<O 5 — <br /> 9/25/1991 2633 636 1997 ND<0 30 -- ND<O 30 ND<O 30 ND<O 30 ND<O 30 - -- <br /> 12/10/1991 — 2633 586 2047 ND<O 30 — ND<O 30 ND<0 30 ND<O 30 N0<0 30 -- — <br /> 3/25/1992 — 2633 542 2091 240 -- 42 18 08 38 — - <br /> 6/25/1992 -- 2633 733 1900 ND<30 - ND<O 30 ND<O 30 ND<O 30 ND<O 30 -- — <br /> 12/8/1992 — 2633 591 2042 61 - ND<0 5 ND<O 5 ND<O 5 ND<O 5 -- - <br /> 3110/1993 — 2633 569 2064 220 — 35 06 57 92 - <br /> 6/16/1993 — 2633 353 2280 ND<50 — ND<O 5 ND<O 5 ND<0 5 ND<O 5 -- — <br /> 10/22/1993 — -- -- -- 460 — 09 07 14 08 1,700 — QC-1 <br /> 10/22/1993 - 2633 606 2027 460 — 1 06 14 08 1,600 — <br /> 1/24/1994 -- 2633 563 2070 ND<50 -- ND<O 5 ND<O 5 ND<O 5 06 209 - <br /> 6/7/1994 — 2633 608 2025 N0<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 28 <br /> 9/13/1994 — 2633 636 1997 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<5 0 81 <br /> 1/10/1995 — 2633 554 2079 100 -- 6 2 ND<O 5 12 -- 52 <br /> 3/23/1995 - 2633 563 2070 ND<50 -- 053 ND<O 50 051 19 -- 89 <br /> 10/4/1995 - 2633 637 1996 210 -- ND<1 0 ND<1 0 N0<1 0 ND<2 0 840 71 <br /> 1/411996 — 2633 590 2043 3,900 - ND<25 ND<25 ND<25 ND<50 12,000 3 <br /> 3/29/1996 - - -- -- 11,000 — 37 1 9 4 5 13,000 — QC-1 <br /> 3/29/1996 2633 659 1974 9,200 — 34 9 3 4 12,000 36 <br /> 7/1/1996 2633 716 1917 5,200 -- 58 3 3 ND<1 ND<1 10,000 31 <br /> Report Date October 13, 2005 Page 13 of 28 <br />