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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS February 1999 Through November 2004 Circle K Store 08671 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260E benzene Xylenes 8021B 8260E Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg11) (µg/1) (µg/1) (µg/1) (µg11) MW-5 (Screen Interval to feet DNA) 01/07/02 13 52 3279 000 -1927 -- ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 5 4 ND<0 50 02/12/02 13 52 3089 000 -1737 1 90 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<2 5 ND<2 0 05/06/02 13 52 3031 000 -16 79 058 -- ND<50 ND<0 50 ND<0 50 ND<0 50 1 ND<2 0 08/07/02 13 52 3462 000 -21 10 -431 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 11/04/02 13 52 36 88 000 -23 36 -2 26 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 02/03/03 13 52 33 71 000 -20 19 3 17 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<2 0 05/14/03 13 52 31 70 000 -18 18 201 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 - ND<2 0 08/13/03 13 52 3647 000 -2295 -477 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<2 0 11/14/03 13 52 38 61 000 -2509 -2 14 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 - ND<2 0 02/12/04 13 52 35 25 000 -2173 3 36 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<2 0 05/14/04 1352 3442 000 -2090 0 83 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 08/04/04 13 52 3743 000 -23 91 -301 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 11/23/04 13 52 37 45 000 -23 93 -0 02 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 - ND<0 50 MW-6 (Screen interval in feet DNA) 01/07/02 1220 3034 000 -18 14 ND<50-- - ND<0 50 077 ND<0 50 058 ND<2 5 ND<0 50 02/12/02 1220 2944 000 -1724 090 ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<2 5 ND<2 0 05/06/02 1220 28 83 000 -1663 061 ND<50 ND<0 50 ND<0 50 ND<0 50 0 87 -- ND<2 0 08/07/02 1220 3294 0 00 -2074 -4 I 1 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 11/04/02 1220 35 16 000 -22 96 -222 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 - ND<2 0 02/03/03 1220 32 25 000 -2005 2 91 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 05/14/03 1220 3026 000 -1806 1 99 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 08/13/03 1220 3477 000 -2257 -451 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 11/14/03 1220 3697 000 -2477 -220 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 02/12/04 1220 3376 000 -2156 3 21 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 08671 Page 5 of 7