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Table 2 IHSTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through June 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 80218 8260E Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg11) (µg/1) (41) (41) (µg11) (µg/1) MW-18 continued 08/26/04 12.29 9.93 0.00 2.36 -0.65 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<I.0 -- 3.1 11129/04 12.29 10.28 0.00 2.01 -0.35 - 52 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 13 02/15/05 12.29 9.20 0.00 3.09 1.08 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 05/25/05 12.29 8.66 0.00 3.63 0.54 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 0.86 MW-19 (Screen Interval in feet:5.0-20.0) 02/13/03 12.84 8.95 0.00 3.89 -- -- 60 ND<0.50 ND<0.50 ND<0.50 1.4 -- 200 05/12/03 12.94 9.12 0.00 3.72 -0.17 -- ND<500 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 360 08/28/03 12.84 9.99 0.00 2.85 -0.87 -- 130 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 98 11/24/03 12.84 9.83 0.00 3.01 0.16 680 ND<5.0 ND<5.0 ND<5.0 ND<I0 -- 770 02/26/04 12.84 9.28 0.00 3.56 0.55 -- 870 ND<5.0 ND<5.0 ND<5.0 ND<10 - 1400 05/21/04 12.84 9.92 0,00 2.92 -0.64 730 ND<5.0 ND<5.0 ND<5.0 ND<10 1000 08/26/04 12.84 10.60 0.00 2.24 -0.68 -- 310 ND<1.0 ND<1.0 ND<1.0 ND<2.0 -- 330 11/29/04 12.84 10.94 0.00 1.90 -0.34 -- 250 ND<1.0 ND<1.0 ND<1.0 ND<2.0 -- 320 02/15/05 12.84 9.85 0.00 2.99 1.09 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 290 05/25/05 12.84 9.28 0.00 3.56 0.57 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 1.9 MW-20 (Screen Interval in feet:5.0-20.0) 02/13/03 12.54 8.71 0.00 3.83 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<2.0 05/12/03 12.54 8.89 0.00 3.65 -0.18 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<2.0 08/28/03 12.54 9.75 0.00 2.79 -0.86 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 11/24/03 12.54 9.56 0.00 2.98 0.19 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 02/26/04 12.54 9.02 0.00 3.52 0.54 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<2.0 05/21/04 12.54 9.79 0.00 2.75 -0.77 -- ND<50 ND<0.50 ND<0.50 ND<0.50 NI?<1.0 -- 3.7 08/26/04 12.54 10.55 0.00 1.99 -0.76 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 1.7 11/29/04 12.54 10.89 0.00 1.65 -0.34 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 1.4 11195 Page 24 of 25 :^- .4�1ti:.2:4•.��:C_....,....�......"....__..::-.......� �:.tie...�tti4atiu:y•....._.__<<iC�3\._ti__.._.._.__"�f:'ti�...«� ........_...,..otic...,_.-._...............,.._............,_.�._�...._�..:.T�T.L.^�r��..."""T., 6_._. 7��--