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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 P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) 419/L) (/rg/L) (pg/L) WL) (wg/L) (991L) (ug/L) (mg/L) Comments <br /> AMW 5 10/31/2002 P 2619 588 2031 50 - 066 ND<O 5 ND<O 5 ND<O 5 19 -- <br /> 01/30/2003 P 2619 —577 2042 52 <0 50 <0 50 <0 50 092 24 <br /> 04/30/2003 P 2619 553 2066 <50 c0 50 c0 50 <0 50 <0 50 76 <br /> 07/30/2003 P 26 19 6 11 20 08 300 R 94 <2 5 <2 5 <2 5 44 <br /> 10 c <br /> 129!2003 P 26 19 6 05 20 14 <50 <0 50 <0 50 c0 50 0 50 47 <br /> 01/26/2004 P 2619 574 2045 <50 <050 <0 50 <0 50 c0 50 58 - <br /> 04/27/2004 P 2619 595 2024 <50 <0 50 <0 50 <0 50 <0 50 11 <br /> 07/30/2004 P 2619 628 . 1991 92 29 1 <0 50 <0 50 <0 50 1 7 <br /> 10/28/2004 P 2619 588 2031 <50 <0 50 <0 50 <0 50 <0 50 29 <br /> 01/31/2005 P 26 19 5 53 20 66 <50 <0 50 <0 50 c0 50 <0 50 <0 50 - <br /> 04/29/2005 P 2619 569 2050 <50 <0 50 <0 50 <0 50 <0 50 084 <br /> 07/29/2005 P 2619 670 1949 <50 - <0 50 <0 50 "CO 50 <0 50 <0 50 <br /> 10/26/2005 P 2619 5 99 2020 <50 7<0 50 <0 50 <0 50 <O 50 <0 50 — <br /> AMW-6 12/10/1991 2668 5 85 20 83 ND<30 ND<O 30 ND<O 30 ND<O 30 ND<O 30 <br /> 3/25/1992 26 68 4 86 21 82 97 43 ND<O 30 74 61 <br /> 6/25/1992 2668 700 1968 ND<30 ND<O 30 ND<0 30 ND<O 30 ND<O 30 - <br /> 12/8/1992 -- ND<50 ND<O 5 ND<0 5 ND<O 5 ND<O 5 QC 2 <br /> 12/8/1992 2668 5 82 2086 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 - <br /> 3/10/1993 - ND<50 ND<0 5 ND<O 5 ND<O 5 ND<O 5 QC-2 <br /> 3/10/1993 - 2668 547 21 21 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<O 5 <br /> 6/16/1993 -- - ND<50 - ND<0 5 ND<O 5 ND<O 5 ND<0 5 QC 2 <br /> 6/16/1993 2668 348 2320 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- <br /> 10/22/1993 -- - - ND<50 ND<O 5 ND<O 5 ND<O 5 <br /> ND<O 5 ND<5 0 QC 2 <br /> 10/22/1993 2668 590 2078 ND<50 ND<O 5 ND<0 5 ND<O 5 1\10<0 5 ND<5 0 <br /> 1/24/1994 -- - -- ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 QC-2 <br /> 1/24/1994 -- -- ND<50 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<5 0 QC 1 <br /> 1/24/1994 2668 578 2090 ND<50ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 <br /> 6/7/1994 - -- -- ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- QC-2 <br /> 6/7/1994 - 2668 623 2045 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 34 <br /> 9/13/1994 -- -- ND<50 ND<0 5 ND<O 5 ND<O 5 ND<O 5 -- .- QC-2 <br /> 9/13/1994 2668 1 639 2029 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 8 2 <br /> 1/10/1995 -- -- -- ND<50 ND<O 5 ND<0 5 ND<O 5 ND<1 -- - QC-2 <br /> 1/10/1995 2668 5.40 2128 ND<50 - 1 ND<O 5 3 2 -- 64 <br /> Report Date December 1,2005 Page 9 of 29 <br />