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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former BP Retail Site No 11191 <br /> 1469 E Hammer Lane, Stockton, 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) WL) (ugIL) UiWi.) (PW 499) (PgfL) (UW (mg/L) Comments <br /> MW4 10/25/2005 P 2434 5480 -3046 <5,000 — <50 <50 <50 <50 4,500' — <br /> MW-5 04/10/2003 P 2291 4661 -2370 900 <50 <5 0 <5 0 <5 0 1,900' -- <br /> 107/11/2003 <br /> - <br /> 07/i1/2003 P 2291 5043 2752 —1,100 R -- <50 <50 <50 <50 3,000' 21 <br /> 10/17/2003 P 2291 5490 -3199 1,600 R <50 <50 <50 <50 3,600' -- <br /> 01/26/2004 P 2291 5038 -2747 1,300 -- c100 <100 <100 <100 4,300' - <br /> 04/27/2004 P 22 91 5008 2717 3,100 -- <50 <50 <50 <50 4,600* -- <br /> 07/01/2004 P 22 91 54 41 31 50 1,400 -- <50 <50 <50 <50 4,900' <br /> 10/04/2004 P 22 91 5837 -3546 1,900 <50 <50 <5D <50 4,800' - <br /> 01/12/2005 P 2291 5308 -3017 2,000 - <100 <100 <100 <1006,200* 2 99 <br /> 05/11!2005 P 22 91 49 65 -26 74 <5,000 -- <50 <50 <50 <50 4,200- <br /> 07/19/2005 P 22 91 53 40 -3049 <5,000 <50 <50 <50 <50 4,900' <br /> 10/25/2005 P 2291 53 33 -3042 <5D -- <0 50 <0 50 <0 50 <br /> MW-76104/10/2003 P 2207 4595 2388 <50 -- <050 <0 50 <0 50 c0 50 <2 5 <br /> 7/11/2003 P 22 07 49 65 2758 c50 c050 c050 050 <0 50 <0 50* 34 <br /> 011712 003 P 22 07 54 27 -32 20 <50 <0 50 <0 50 <D 50 <0 50 <050*1/26/2004 P 2207 49 74 -2767 75 <0 50 <0 50 c0 50 —<050 <0 50' <br /> 04/27/2004 P 2207 4970 -2763 <50 <0 50 <0 50 <0 50 <0 50 <0 50' <br /> 07/01/2004 P 22 07 5412 -3205 <50 —,050 <0 50 <050 c0 50 ,050- <br /> 10/04/2004 <br /> 050'10/04/2004 P 22 07 5788 -3,581 <50 —<050 <050 <0 50 1050 <0 50' <br /> 0 1/1 212005 P 22 07 5207 -3000 <50 <050 <0 50 <050 <0 50 1050' 3 29 <br /> 05/11/2005 P 2207 4891 26 84 <50 <0 50 <0 50 <0 50 <0 50 <0 50' <br /> 07/19/2005 P 1 2207 5364 -31 57 <50 <0 50 <0 50 <0 50 <0 50 <0 50* <br /> 10/25/2005 1 P 1 2207 5309 -3102 <50 — <br /> MW-7 04/10/2403 P 22 43 46 30 -23 87 <50 c0 50 <0 50 <0 50 !<O <br /> 50 <2 5 .- <br /> 07/11/2003 P 2243 4960 2717 <50 —<050 —<050 <0 5050 <0 50* 39 <br /> 10/17/2003 P 2243 5485 -3242 <50 c0 50 —<050 c0 50 50 <0 50'01/26/2004 P 2243 3 -2770 <50 <0 50 <0 50 <0 50 50 <0 50* <br /> 04/27/2004 P — 2243 4956 -2713 <50 —<050 <050 <0 50 <0 50 <0 50' <br /> 07/01/2004 P 2243 -5396 31 53 <50 <0 50 <056 <050 <0 50 —<050* <br /> 10/04/2004 P 2243 5819 -3576 <50 <0 50 c0 50 <0 50 <0 50 <0 50' -- <br /> P�7 <br /> 01/12/2005 P 2-243 5285 -3042 <50 <0 50 <0 50 <050 <0 50 <0 50" 385 <br /> 05/11/2005 P 22 43 49 49 27 06 <50 <0 50 <0 50 <0 50 <0 50 1 <0 50' -- <br /> Report Date November 29,2005 Page 3 of 5 <br />