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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through August 2005 Former BP Oil 11195 Date `oc Depth to LFII Ground- Change T1111-G TPI'1I Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260F3 benzene Xylenes 8021B 826013 Elevation Elevation (feet) (feet) (feet) (feet) (feet) (itgll) (pg/1) (µg11) (µg/1) (µgli) (µg11) (11g/1) (µg/l) MW-2I continued 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 -- Nb<2,0 05/12/03 12.80 9.21 0.00 3.59 -1,16 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<2.0 08/28/03 12.80 10.08 0.00 2.72 -0.87 -- 1100 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 11/24/03 12.80 9.93 0.00 2.87 0.15 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 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<0.50 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<0.50 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 MW-22 (Screen Interval in feet:7.0-22.0) 08/31/05 12.26 906 0.00 3.20 -- - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 6,8 MW-23 (Screen Interval in feet:7.0-2210) 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 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 11195 Page 26 of 26