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• s � <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 /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msi) (feet bgs) (feet msl) (pg1L) (pg1L) (pg/L) (pglL) (pgll-) (pg1L) W/L) (mg1L) Comments <br /> AMW-2 10/31/2002 P 2645 543 2102 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<2 5 -- <br /> 01/30/2003 P 2645 511 2134 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 04/30/2003 P 2645 4 91 2154 <50 — <0 50 <0 50 <0 50 <0 50 <25 -- <br /> 07/30/2003 P 2645 568 2077 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 10/29/2003 P 2645 559 2086 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 01126112004 P 2645 506 21 39 <50 - <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 04/27/2004 P 2645 544 2101 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 — <br /> 07/30/2004 P 2645 574 2071 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 10/28/2004 — 2645 505 2140 -- -- -- -- -- -- -- — Sampled Annually 3rd <br /> Quarter <br /> 01/3V2005 -- 2645 474 2171 - — - — — — — — Sampled Annually 3rd <br /> Quarter <br /> 04/29/2005 ~ 2645 522 21 23 — — -- — -- — — Sampled Annually 3rd <br /> Quarter <br /> 0712912005 P 2645 565 1 2080 1 <50 I — <0 50 1 <0 50 1 <0 50 1 <0 50 <0 50 <br /> AMW-3 8/10/1990 — 2529 746 1783 90 -- 06 41 28 21 — — <br /> 8/27/1990 -- 2529 746 1783 -- -- -- -- — — ~ <br /> 11/2/1990 — 2529 -- — — -- - ~ -- — <br /> 11/5/1990 -- 2529 758 1771 N0<50 — ND<0 3 ND<0 3 ND<0 3 ND<0 3 -- -- <br /> 2/25/1991 -- 2529 703 1826 1 ND<50 — ND<0 3 ND<0 3 N0<0 3 ND<0 3 — -- <br /> 612711991 2529 760 1769 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 — - <br /> 9/25/1991 - 2529 792 1737 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 - — <br /> 12/10/1991 — 2529 756 1773 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 -- -- <br /> 3/25/1992 2529 716 1813 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 6/25/1992 - 2529 805 1724 ND<30 -- ND<0 30 ND<0 30 ND<0 30 ND<0 30 — — <br /> 12/8/1992 — 2529 737 1792 ND<50 — ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- - <br /> 3/10/1993 -- 2529 709 1820 ND<50 N0<0 5 ND<0 5 ND<0 5 ND<0 5 -- — <br /> 6/16/1993 - 2529 721 1808 — - - — -- ---1O—/Ml 993 -- 2529 744 1785 <br /> 1/24/1994 -- 2529 722 1807 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 — <br /> 6/7/1994 -- 2529 770 1759 N0<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 N0<5 0 3 4 <br /> 9/13/1994 -- 2529 764 1765 — -- T — ~ -- -- —1/10/1995 — 2529 683 1846 -- <br /> Report Date October 13,2005 Page 4 of 28 <br />