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y 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) (11g11) (µg/1) (µg11) (1g11) (µg/1) (µgll) (41) (µg/1) CC-WS (Screen Interval in feet:DNA) 2/9/01 -- -- -- ND - ND ND ND 1.22 253 -- 5/11101 - -- - -- -- ND -- ND 0.811 ND 0.816 451 367 No Purge 8/10/01 -- 10.31 -- -- -- ND<50 - ND<0.50 0.86 ND<0.50 0.76 94 94 No Purge 11/21/01 -- 10.86 -- -- -- ND<50 - ND<0.50 ND<0.50 ND<0.50 ND<0.50 5.1 5 No Purge 2/7/02 -- - - -- -- -- Inaccessible Car Parked 5/23102 -- 9.78 -- -- -- ND<100 ND<1.0 ND<1.0 ND<1.0 ND<2.0 -- 230 No Purge 8115102 -- 10.24 -- -- -- ND<250 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 210 No Purge 11/18/02 -- 10.66 - -- -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 160 No Purge 2113103 -- 9.86 -- -- -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 20 5/12/03 -- 10.07 -- -- -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 NDX1.0 150 No Purge 8128103 -- -- -- -- -- Inaccessible 11/24/03 10.76 0.00 __ __ __ 81 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 72 2/26/04 -- 10.00 0.00 - -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 53 5/21/04 -- 10.62 0.00 -- -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<I.0 -- 22 8/26104 -- -- _ __ car parked on well 11/29/04 -- -- -- -- -- -- -- -- -- -- -- Dry well 2/15/05 -- 10.42 0.00 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 6.6 MW-1 (Screen Interval in feet: 8.0-23.0) 12/21/92 9.10 11.18 0.00 -2.08 -- ND -- ND ND ND ND -- -- 5/17193 9.10 8.41 0.00 0.69 2.77 ND -- ND ND 0.6 2.1 -- -- 9/15193 9.10 9.78 0.00 -0.68 -1.37 ND -- ND ND ND ND 1/12/94 9.10 10.49 0.00 -1.39 -0.71 ND -- ND ND ND ND -- -- 5/12/94 9.10 9.77 0.00 -0.67 -- ND - ND ND ND ND - - 10/7/94 9.10 10.54 0.00 -1.44 -0.77 ND -- ND ND ND ND -- -- 11195 P age 1 of 24