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y <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> December 1992 Through March 2005 <br /> Former BP Oil 11195 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (41) (µg/1) (µg/1) (µg/1) (41) (41) (µg/1) (110) <br /> MWA continued <br /> 8/10/01 9.76 10.38 0.00 -0.62 -1.00 ND<50 - ND<0.50 1.6 ND<0.50 1.5 1200 2000 <br /> 11/21/01 9.76 10.89 0.00 -1.13 -0.51 ND<120 ND<1.2 ND<1.2 ND<1.2 ND<1.2 1600 2000 <br /> 2/7/02 9.76 8.90 0.00 0.86 1.99 ND<500 -- ND<5.0 ND<5.0 ND<5.0 ND<5.0 2400 1800 <br /> 5/23102 9.76 9.86 0.00 -0.10 -0.96 -- ND<1000 ND<10 ND<10 ND<10 ND<20 -- 1900 <br /> 8/15102 14.42 10.33 0.00 4.09 -- -- ND<1000 ND<10 ND<10 ND<l0 ND<20 -- 1100 <br /> 11/18/02 14.42 10.72 0.00 3.70 -0.39 ND<1000 ND<10 ND<10 ND<10 ND<20 2000 <br /> 2113/03 14.42 9.83 0.00 4.59 0.89 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 120 <br /> 5112103 14.42 10.17 0.00 4.25 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<2.0 <br /> 8128/03 14.42 11.11 0.00 3.31 -0.94 -- 550 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 2.2 <br /> 11/24/03 14.42 10.85 0.00 3.57 0.26 -- 630 ND<5.0 ND<5.0 ND<5.0 ND<10 - 760 <br /> 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 <br /> 5/21/04 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 <br /> 8/26/04 14.42 11.29 0.00 3.13 -0.54 130 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 11/29/04 14.42 11.71 0.00 2.71 -0.42 -- 76 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 2.8 <br /> 2/15/05 14.42 10.50 0.00 3.92 1.21 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.8 <br /> MW-2 (Screen Interval in feet: 8.0-23.0) <br /> 12/21/92 8.90 10.96 0.00 -2.06 -- ND -- ND ND ND ND -- -- <br /> 5/17193 8.90 8.20 0.00 0.70 2.76 120 -- 1.8 0.6 1.2 1 -- -- <br /> 9115193 8.90 9.58 0.00 -0.68 -1.38 2800 -- 97 ND 290 250 -- - <br /> 1/12/94 8.90 10.28 0.00 -1.38 -0.70 51 -- ND ND ND ND 130 <br /> 5112/94 8.90 9.57 0.00 -0.67 -- 64 -- ND ND ND ND 120 -- <br /> 10/7/94 8.90 10-36 0.00 -1.46 -0.79 86 -- Nil ND ND ND -- <br /> 12/8/94 8.90 10.53 0.00 -1.63 -0.17 2300 - ND ND ND ND --2/21/95 8.90 8.24 Mo 0.66 2.29 1100 -- 2.7 ND ND ND -- - <br /> 11195 Page 3 of 24 <br /> �- --�-:: _- ,.::.----_-.- _-:.t:_- ,:--__• _-�_�TT :....-:'=' - <br /> ---------------------- ------------ - - _ �._�.- <br />