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Table 1 SUMMARY OF GROUNDWATER LEVELS AND CHEMICAL ANALYSIS RESULTS May 21,2004 Former BP Oil 11195 1 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 8260E Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (41) (µg/1) (µg/l) (41) (41), (pg/l) (pg/1) CC-WS (Screen Interval in feet:DNA) 5/21/2004 -- 10.62 0.00 -- - ND<50 ND<0,50 ND<0.50 ND<0.50 ND<1.0 22 MW-1 (Screen Interval in feet:8A-23.0) 5/21/2004 14,42 10.75 0.00 3.67 -0,80 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 6.4 MW-2 (Screen Interval in feet: 8.0-23.0) 5/21/2004 13.75 9.98 0.00 3.77 -0.65 -- 57 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 55 MW-3 (Screen Interval in feet:8.0-23.0) 5/21/2004 14.37 10.59 0.00 3.78 -0.68 -- ND<1000 ND<10 ND<10 ND<10 ND<20 -- I000 MW-4 (Screen Interval in feet: 9.5-24.5) 5/21/2004 14,37 10.49 0.00 3.88 -0.62 - 130 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 0.58 MW-5 (Screen Interval in feet:9.5-24.5) 5/21/2004 15.40 11.56 0.00 3.84 -0.77 - ND<250 ND<2.5 ND<2.5 ND<2.5 ND<5.0 - 320 MW-6 (Screen Interval in feet: 7.0-20.0) 5/21/2004 12,90 9.20 0.00 3.70 -0.61 - 53 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 34 MW-8 (Screen Interval in feet:4.0-14,0) 5/21/2004 13.61 9.62 0.00 3.99 -0.55 - ND<1000 ND<10 ND<10 ND<10 ND<20 1300 MW-9 (Screen Interval in feet:5.0-15.0) 5/21/2004 13,29 9.60 0.00 3.69 -0.59 - 66 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 93 MW-10 (Screen Interval in feet: 4.0-14.0) 5/21/2004 12.01 9.82 0.00 2.19 -1.69 -- ND<50 ND<0.50 ND<0.50 ND<0,50 ND<1.0 -- 0.98 MW-11 (Screen Interval in feet:4.0-14.0) 5/21/2004 12,08 8.11 0.00 3,97 -0.77 -- ND<50 ND<0.50 ND<0,50 ND<0.50 ND<1.0 -- 0.88 M-W-12 (Screen Interval in feet: 4.0-14.0) 5/2112.004 13,07 9.09 0.00 3.98 -0.78 -- ND<50 ND<0,50 ND<0.50 ND<0.50 ND<1,0 -- ND<0,50 MW-13 (Screen Interval in feet: 6.0-21.0) 11195 Page 1 of 2