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f HISTORIC FLUID LEVELS Table 2 <br /> AND SELECTED ANALYTICAL RESULTS <br /> October 1998 Through July 2004 <br /> Circle K Store 01205 <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 8260E <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) (µg11) (41) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) <br /> MW-5Screen Interval in feet:4.0- <br /> { 4.0-24.0) <br /> 01/08/01 16.48 10.95 0.00 5.53 -- 64000 -- 120 1300 5000 . 30000 ND 27 <br /> 04/26/01 16.48 10.37 0.00 6,11 0.58 73000 -- 103 770 5360 30200 ND ND <br /> 07/19/01 16.48 11.26 0.00 5.22 -0.89 110000 -- 230 3500 4500 26000 ND ND <br /> 10/25/01 16.48 12.69 0.00 3.79 -1.43 63000 -- 480 3700 4500 22000 ND<1000 ND<50 <br /> 01/29/02 16.48 11.97 0.00 4.51 0.72 15000 - 150 620 1000 4000 ND<200 ND<20 <br /> 04/29/02 16.48 11.77 0.00 4.71 0.20 60000 -- ND<200 1300 3900 22000 ND<2000 ND<100 <br /> I <br /> 07/29/02 16.48 12.75 0.00 3.73 -0.98 -- 56000 330 3700 3900 22000 -- ND<100 <br /> 10/25/02 16.48 14.08 0.00 2.40 -1.33 -- 51000 240 2300 3400 16000 -- ND<100 <br /> 01/24/03 16.48 13.35 0.00 3.13 -- 90000 ND<250 1100 5300 26000 -- ND<1000 <br /> 04/25/03 16.48 12.88 0.00 3,60 0.47 -- 45000 220 550 2800 9300 -- ND<400 <br /> 07/25/03 16,48 13.55 0.00 2.93 -0.67 -- 6400 200 990 2700 11000 -- ND<400 <br /> 10/09/03 16.47 14.75 0.00 1.72 -1.21 -- 4500 79 54 600 710 ND<20 <br /> 01/26/04 16.47 15.15 0.00 1.32 -0.40 -- 14000 38 130 520 2700 -- ND<20 <br /> 04/27/04 16.47 12.09 0.00 4.38 3.06 - 52000 87 1100 3100 16000 -- ND<50 <br /> 07/19/04 16.47 13.31 0.00 3.16 -1.22 -- 17000 36 280 1200 4200 - ND<20 <br /> MW-6 (Screen Interval in feet: 4.0-24.0) <br /> 01/08/01 16.68 11.24 0.00 5.44 -- 72000 -- 250 2300 4700 25000 ND 750 <br /> 04/26/01 16.68 10.66 0.00 6.02 0.58 62900 -- 251 2050 3700 18300 ND 613 <br /> 07/19/01 16.68 11.52 0.00 5.16 -0.86 60000 -- 170 2100 2900 14000 ND 310 <br /> 10/25/01 16.68 12.97 0.00 3.71 -1.45 41000 300 3700 3200 14000 610 660 <br /> 01(29/02 16.68 12.27 0.00 4.41 0.70 31000 -- 250 3300 2300 8600 580 640 <br /> 04/29/02 16.68 12.02 0.00 4.66 0.25 580 -- 8.6 18 22 68 390 310 <br /> 07/29/02 16.68 1296 0.00 3.72 -0.94 -- 44000 ND<250 4200 3800 14000 -- ND<1000 <br /> I 10/25/02 16.68 14,34 0.00 2.34 -1.38 -- 1700 ND<2.5 19 81 220 - 230 <br /> 01205 Page 5 of 10 <br />