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Table 1 SUMMARY OF GROUNDWATER LEVELS AND CHEMICAL ANALYSIS RESULTS February 26,2004 Former BP Oil 11195 Date TOC Depth to LPH Ground- Change in TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water Elevation 8260B benzene Xylenes 8021B 8260B Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (gg/1) 010) (µg/l) (µg/1) (µg/1) CC-WS (Screen Interval in feet:DNA) 2/26/04 -- 10.00 0.00 __ -_ .. ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 53 MW-1 (Screen Interval in feet: 8.0-23.0) 2/26/04 14.42 9.95 0.00 4.47 0.90 -- 110 ND<1.0 ND<1.0 ND<1.0 ND<2.0 -- 100 MW-2 (Screen Interval in feet: 8.0-23.0) 2/26/04 13.75 9.33 0.00 4.42 0.79 -- 120 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 110 MW-3 (Screen Interval in feet: 8.0-23.0) 2/26/04 14.37 9.91 0.00 4.46 0.81 -- ND<1000 ND<10 ND<10 ND<10 ND<20 - 950 MW-4 (Screen Interval in feet: 9.5-24.5) 2126/04 14.37 9.87 0.00 4.50 0.79 -- 120 ND<0.50 0.60 ND<0.50 ND<1.0 2.4 MW-5 (Screen Interval in feet:9.5-24.5) 2/26/04 15.40 10.79 0.00 4.61 0.86 -- 1500 ND<13 ND<13 ND<13 ND<25 -- 1800 MW-6 (Screen Interval in feet:7.0-20.0) 2/26/04 12.90 8.59 0.00 4.31 0.77 -- 81 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 92 MW-8 (Screen Interval in feet:4.0-14.0) 2/26104 13.61 9.07 0,00 4.54 0.77 - 1000 ND<10 ND<10 ND<10 ND<20 1400 MW-9 (Screen Interval in feet: 5.0-15.0) 2/26104 13.29 9.01 0.00 4.28 0.74 87 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 90 MW-10 (Screen Interval in feet:4.0-14.0) 2/26/04 12.01 8.13 0.00 3.88 1.05 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 13 MW-11 (Screen Interval in feet: 4.0-14.0) 2/26/04 12.08 7.34 0.00 4.74 0.87 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 MW-12 (Screen Interval in feet:4.0-14.0) 2/26/04 13.07 8.31 0.00 4.76 0.86 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 MW-13 (Screen Interval in feet:6.0-21.0) 11195 Page 1 of 2