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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through October 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) (4g/1) (µg/1) (11g/1) (µg/1) (µg11) (µg/1) (µg/1) (µg11) MW-21 continued 02/26/04 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 05/21/04 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 08/26/04 .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<Q.50 11/29/04 12.80 -- -- __ __ __ __ Covered with asphalt 03/24/05 12.80 8.88 0.00 3.92 -- -- ND<50 ND<0.50 ND<0.50 ND<M0 ND<1.0 ND<0.50 05/25/05 12.80 9.09 0.00 3.71 -0.21 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 08/31/05 12.80 -- -- -- -_ __ Paved over 10/25/05 1280 - -- -- __ _ __ _ Paved over MW-22 (Screen Interval in feet:7.0-22.0) 08/31/05 12.26 9.06 0.00 3.20 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 6.8 1.0/25/05 12.26 9.34 0.00 2.92 -0.28 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 10 MW-23 (Screen Interval in feet:7.0-22.0) 08/31/05 10.98 7.86 0.00 3.12 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 1.4 10/25/05 10.98 8.26 0.00 2.72 -0.40 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 2.5 MW-24 (Screen Interval in feet:7.0-22.0) 08/12/05 -- -- -- __ __ __ ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 08/31/05 11.84 9.12 0.00 2.72 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 0.91 10/25/05 11.84 9.40 0.00 2.44 -0.28 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 19 11195 Page 27 of 27