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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through August 2004 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) (µg/1) (µg/1) (41) (µg/1) (µg11) (41) (µg/1) (µg/1) MW-18 continued 08/28/03 12.29 9.45 0.00 2.84 -0.88 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<I.0 2.2 11/24/03 12.29 9.26 0.00 3.03 0.19 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<2.0 02/26/04 12.29 8.66 0.00 3.63 0.60 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 05/21/04 12.29 9.28 0.00 3.01 -0,62 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 7.2 08/26/04 12.29 9.93 0.00 2.36 -0.65 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.1 MW-19 (Screen Interval in feet:5A-20.0) 02/13/03 12.84 895 0.00 3.89 60 ND<0.50 ND<0.50 ND<0.50 1.4 -- 200 05/12/03 12.84 9.12 0.00 3.72 -- -- ND<500 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 360 08/28/03 12.84 9.99 0.00 2.85 -0.87 -- 130 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 98 11/24/03 12.84 9.83 0.00 3.01 0.16 - 680 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 770 02/26/04 12,84 9,28 0.00 3.56 0.55 870 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1400 05/21/04 12.84 9.92 0.00 2.92 -0.64 -- 730 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1000 08/26/04 12.84 10.60 0.00 2.24 -0.68 -- 310 ND<1.0 ND<1.0 ND<1.0 ND<2.0 -- 330 MW-20 (Screen Interval in feet: 5.0-20.0) 02/13/03 12.54 8.71 0.00 3.83 -- - ND<50 ND<0.50 ND<0.50 ND<0,50 ND<1.0 ND<2.0 05/12/03 12.54 8.89 0.00 3.65 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 08/28/03 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 02/26/04 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 05/21/04 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 08/26/04 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 MW-21 (Screen Interval in feet: 5.0-20.0) 02/13/03 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 05/12/03 12.80 9.21 0.00 3.59 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<I.0 -- ND<2.0 11195 Page 21 of 22