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S • Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS February 1999 Through January 2006 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 (8015M) (8260) benzene Xylenes (8021B) (826013) Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (µg11) (µg/1) (µg/1) (µg11) (µg/1) (4g/1) MW-6 continued 11/04/02 1220 35 16 000 -2296 -222 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 02/03/03 1220 3225 000 -20 05 291 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 05/14/03 1220 3026 0 00 -1806 199 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 08/13/03 1220 3477 000 -2257 -451 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 11/14/03 1220 3697 000 -2477 -220 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 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<l 0 -- ND<2 0 05/14/04 1220 3260 000 -2040 116 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 08/04/04 1220 3577 000 -23 57 -317 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 11/23/04 1220 3587 000 -23 67 -010 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 01/26/05 1220 3331 000 -21 11 256 -- ND<50 ND<0 50 062 ND<0 50 ND<l 0 -- ND<0 50 04/18/05 1220 3064 0 00 -1844 2 67 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 08/23/05 1220 3362 000 -2142 -298 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 10/14/05 12 20 3495 000 -2275 -133 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 01/18/06 1220 32 00 000 -1980 2 95 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 MW-7 (Screen Interval in feet DNA) 01/07/02 1434 32 84 000 -1850 -- ND<50 -- ND<0 50 071 ND<0 50 ND<0 50 ND<2 5 ND<0 50 02/12/02 1434 3191 000 -1757 093 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<2 5 ND<2 0 05/06/02 1434 3132 000 -1698 0 59 -- ND<50 ND<0 50 ND<0 50 ND<0 50 074 -- ND<2 0 08/07/02 1434 3579 000 -2145 -447 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 11/04/02 1434 3784 000 -2350 -205 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 02/03/03 1434 34 72 000 -2038 3 12 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 05/14/03 1434 3271 000 -1837 201 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 08/13/03 1434 3766 000 -23 32 -495 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 11/14/03 1434 3880 000 -2446 -1 14 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 08671 Page 7 of 9