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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Tbrough November 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) (µg11) (µg11) (µg/1) (µg11) (µg/1) (µg11) (µg/1) (µg/1) MW-15 continued 02/13/03 14.94 10.63 0.00 4.31 0.84 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 21 05/12/03 14.94 12.89 0.00 2.05 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 23 08/28/03 12.92 11.76 0.00 1.16 -0.89 -- 54 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 12 11/24/03 12.92 11.39 0.00 1.53 0.37 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 13 02/26/04 12.92 10.74 0.00 2.18 0.65 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 05/21/04 12.92 11.63 0.00 1,29 -0.89 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 1.8 08/26/04 12.92 12.29 0.00 0.63 -0.66 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 2.5 11/29/04 12.92 12.66 0.00 0,26 -0.37 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 7.3 MW-16 (Screen Interval in feet: 5.0-20.0) 06/18/02 12.92 11.94 0.00 0.98 -- -- ND<1000 ND<10 ND<10 ND<10 ND<20 -- 2300 08/15/02 12.92 12.07 0.00 0.85 -0.13 -- ND<2500 ND<25 ND<25 ND<25 ND<50 -- 2400 11/18/02 12.92 12.43 0.00 0.49 -0.36 -- ND<2500 ND<25 ND<25 ND<25 ND<50 -- 2700 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 -- -- 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 N1<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- 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 11195 Page 21 of 23