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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 8021E 8260E Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/l) W/1) (µg/1) (µg/1) (µg/l) (µgll) MW-17 continued 2/15105 13.76 10.17 0.00 3.59 1.15 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 0.53 MW-18 (Screen Interval in feet: 5.0-20.0) 2113103 12.29 8.48 0.00 3.81 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 5/12/03 12.29 8.57 0.00 3.72 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 Top of Casing Altered 8128/03 12.29 9.45 0.00 2.84 -0.88 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 2.2 11/24/03 12.29 9.26 0.00 3.03 0.19 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<2.0 2/26/04 12.29 8.66 0.00 3.63 0.60 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 5/21/04 12.29 9.28 0.00 3.01 -0.62 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 7.2 8126/04 12.29 9.93 0.00 2.36 -0.65 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.1 11/29/04 12.29 10.28 0.00 2.01 -0.35 -- 52 ND<0.50 ND<0.50 ND<0.50 ND<1.0 13 2/15/05 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 MW-19 (Screen Interval in feet. 5.0-20.0) 2/13/03 12.84 8.95 0.00 3.89 -- -- 60 ND<0.50 ND<0.50 ND<0.50 1.4 - 200 5/12/03 12.84 9.12 0.00 3.72 -- -- ND<500 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 360 8/28/03 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<10 770 2/26/04 12.84 9.28 0.00 3.56 0.55 -- 870 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1400 5/21/04 12.84 9.92 0.00 2.92 -0.64 -- 730 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1000 8/26104 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 2A5/05 12.84 9.85 0.00 2.99 1.09 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<I.0 -- 290 MW-20 (Screen Interval in feet: 5.0-20.0) 2/13/03 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 5/12/03 12.54 8.89 0.00 3.65 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 11195 Page 23 of 24 -. -r:cc.,cs-T�._�...- --..._ ._•.__�_-.-..--.`�-�^�^r.aa.a_ .aLILL ILa.a aia�_.a_��iv._i.•_a_ai__:•..•.._a____a.a:•_•_.:._._._�_ _u..a..a�•_:•_._!�.i.,._aa�_..i._ �-.-.5.� '.'._4�-:.:_ __14v.•••.•. v.a:.�__'Ti i'__ .a__._.•..a__ia_a_amu _a,.�..a_.._u_______a_.____.__.__.__. ___.1ti _.. _.__