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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through October 2005 Former BP Oil 111.95 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) 4Lg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/l) MW-16 continued 02/13/03 12.92 11.63 0.00 1.29 0.80 ND<1000 ND<10 ND<10 ND<10 ND<20 -- 1700 05/12/03 12.92 11.83 0.00 1.09 -0.20 -- ND<5000 ND<50 ND<50 ND<50 ND<100 -- 1900 08/28/03 12.92 12.74 0.00 0.18 -0.91 -- 810 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1000 11/24/03 12.92 12.45 0.00 0.47 0.29 -- 340 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 270 02/26/04 12.92 11.72 0.00 1.20 0.73 -- ND<250 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 290 05/21/04 12.92 12.60 0.00 0.32 -0.88 -- ND<250 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 140 08/26/04 12.92 13.26 0.00 -0.34 -0.66 -- 260 ND<1.0 ND<1.0 ND<1.0 ND<2.0 -- 240 11/29/04 12.92 13.59 0.00 -0.67 -0.33 -- 1100 ND<1.0 ND<1.0 ND<1.0 ND<2.0 - 1400 02/15/05 12.92 12.43 0.00 0.49 1.16 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 160 05/25/05 12.92 11.99 0.00 0.93 0.44 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 12 08/31/05 12.92 12.09 0.00 0.83 -0.10 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 7.4 10/25/05 12.92 I2.69 0.00 0.23 -0.60 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 47 MW-17 (Screen Interval in feet:5.0-20.0) 06/18/02 13.76 9.69 0.00 4.07 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 28 08/15/02 13.76 9.88 0.00 3.88 -0.19 -- 280 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 270 11/18/02 13.76 10.21 0.00 3.55 -0.33 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 71 02/13/03 13.76 9.45 0.00 4.31 0.76 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 28 05/12/03 13.76 9.63 0.00 4.13 -0.18 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 140 08/28/03 13.76 10.58 0.00 3.18 -0.95 ND<50 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 730 11/24/03 13.76 10.37 0.00 3.39 0.21 -- 200 ND<1.0 ND<1.0 ND<1.0 ND<2.0 150 02/26/04 13.76 9.69 0.00 4.07 0.68 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 4.3 05/21/04 13.76 10.36 0.00 3.40 -0.67 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 29 08/26/04 13.76 1I.00 0.00 2.76 -0.64 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 31 11/29/04 13.76 11.32 0.00 2.44 -0.32 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 6.4 11195 Page 24 of 27