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r Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through March 2005 Former BP Oil 11195 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) 410) (µg11) (µg/1) (11g11) (µg/1) (µg11) (µg/1) (µg11) MW-20 continued 8128103 12.54 9.75 0.00 2.79 -0.86 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 11/24/03 12.54 9.56 0.00 2.98 0.19 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 2/26/04 12.54 9.02 0.00 3.52 0.54 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 5/21/04 12.54 9.79 0.00 2.75 -0.77 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.7 8126104 12.54 10.55 0.00 1.99 -0.76 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 1.7 11/29/04 12.54 10.89 0.00 1.65 -0.34 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 1.4 2115105 12.54 9.68 0.00 2.86 1.21 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.9 MW-21 (Screen Interval in feet:5.0-20.0) 2/13/03 12.80 8.05 0.00 4.75 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 5/12/03 12.80 9.21 0.00 3.59 -- - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 8128103 12.80 10.08 0.00 2.72 -0.87 -- 1100 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 11/24/03 12.80 9.93 0.00 2.87 0.15 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 2/26/04 12.80 9.29 0.00 3.51 0.64 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 5/21/04 12.80 10.19 0.00 2.61 -0.90 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<0.50 8126104 12.80 10.96 0.00 1.84 -0.77 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 11/29/04 12.80 -- -- -- -- -- -- -- Covered with asphalt 3/24/05 12.80 8.88 . 0.00 3.92 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 11195 Page 24 of 24