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• i <br /> 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 /> Weil Date P! Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet ms]) (feet bgs) (feet msl) (pg/L) (pg1L) (pg/L) (pg/L) (pg/L) (pglL) WL) (mg/L) Comments <br /> MW-1 10/29/2003 P 2688 669 2019 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 01/26/2004 P 2688 638 2050 <50 — <0 50 <050 <0 50 <0 50 <0 50 — <br /> 04127l2004 P 2688 658 2030 <50 — <0 50 <050 <0 50 <0 50 <0 50 — <br /> 07/30/2004 P 2688 691 1997 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 10128l2004 — 2688 678 2010 — -- -- — — — — — Sampled Annually 3rd <br /> Quarter <br /> MW-2 11/20/1987 -- — — — ND<50 — N0<0 5 ND<0 5 -- ND<0 5 — <br /> 3/13/1988 — 2633 567 2066 — — — — — — — — <br /> 3/23/1988 — 2633 563 2070 ND<50 — ND<0 5 ND<0 5 — ND<0 5 — — <br /> 6/7/1988 — 2633 570 2063 — - — -- — -- -- <br /> 10/18/1988 — 2633 570 2063 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — <br /> 2/15/1990 -- 2633 535 2098 50 — 43 08 07 16 — — <br /> 4/26/1990 — 2633 550 2083 — — — -- -- — — -- <br /> 7/12/1990 — 2633 548 20 85 80 -- 04 13 0 5 15 — — <br /> 8/27/1990 -- 2633 580 2053 — -- — — -- — — — <br /> 11/2/1990 — 2633 585 2048 -- — — — — — — -- <br /> 11l5l1990 — 2633 587 2046 1113<50 — ND<0 3 ND<0 3 ND<0 3 ND<0 3 — — <br /> 2/25/1991 -- 2633 534 2099 ND<50 — ND<0 3 ND<0 3 ND<0 3 ND<0 3 — -- <br /> 6/27/1991 — 2633 1 607 2026 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — <br /> 9/25/1991 -- 2633 636 1997 ND<0 30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- — <br /> 12/10/1991 — 263.3 586 2047 ND<0 30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 3/25/1992 — 2633 542 2091 240 — 42 18 08 38 — — <br /> 6/25/1992 — 2633 733 1900 ND<30 — ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 12/8/1992 -- 2633 591 2042 61 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — <br /> 3/10/1993 — 2633 569 2064 220 — 35 06 57 92 — — <br /> 6/16/1993 -- 2633 353 2280 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 — — <br /> 10/22/1993 — — -- — 460 — 09 07 14 08 1,700 -- QC-1 <br /> 10/22/1993 — 2633 606 1 2027 460 — 1 0 6 14 08 1 1,600 — <br /> 1/24/1994 — 2633 563 2070 ND<50 — ND<0 5 ND<0 5 ND<0 5 06 209 — <br /> 6/7/1994 — 2633 608 2025 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 2 8 <br /> 9/13/1994 -- 2633 636 1997 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 81 <br /> 1/10/1995 -- 2633 554 2079 100 — 6 2 ND<0 5 12 — 52 <br /> 3/23/1995 — 2633 1 563 1 2070 r ND<50 — 053 1 ND<0 50 051 <br /> Report Date December 16,2004 Page 12 of 26 <br />