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U <br />Trapper Mine. The penneabilities from the bacldHl aquifers are significantly Beater than the coal <br />aquifers that they replace. <br />The water-level contours extend through the pit areas for the F, G and Z pits because the R <br />seam was not mined in these pits and therefore the QR aquifer slit] exist under these pit floors. Some <br />drawdown would be expected in these areas of the QR aquifer and are indicated by the contours. <br />The QR water-level map at Trapper Mine was very similar in 2004 to the 2003 water-level <br />elevations. Gradients and flow directions for tbe QR aquifer in 2004 are similar to those observed in <br />2003. <br />Map No. 2-2 presents the water-level elevation contours for the HI aquifer in the Fall of <br /> <br />2004. Wells GC-1, GE-2, GF-4, GP-3, GP-7, and GMP-1, which are completed in the HI aquifer, and <br />bacldill wells GF-5 and GF-7, were used in the development of this map. Wells GF-5 and GF-7 are <br />completed in the bacldill in the area where the H and I coal seams were mined. Flow direction in the <br />HI aquifer has been changed mainly near the A pit near well GF-4. The overall flow regime in this <br />aquifer is northerly, similar to that observed m 2003 (see Hydro-Engineering, 2004). The <br />ground-water gradient between the bacldill aquifer and the un-mined HI aquifer downgradient is <br />relatively flat as it is in the QR bacldill. The contours in the HI aquifer have also been changed on the <br />east side where the A pit dewatering in 20041ikely has caused water level declines near this pit. The F <br />and Z pits were used to mine the I seam in 2004 while the H seam was mined in the G pit. <br />The 3rd White Sandstone aquifer water-level elevations are presented on Map No. 2-3. <br />Wells GC-2, GE-3, P-8, 81-03A, and GP-9 were used in the development of this map. Flow direction <br />in the 3rd White Sandstone is mainly toward the north, as expected. Data from wells GE-3 and <br />81-03A indicate that the 3rd White Sandstone water flows toward the west between these two wells <br />and probably toward a discharge to an adjacent aquifer or to the surface. The 2004 contours are very <br />similar to those observed from the last few years. <br />Trapper Mining Company 2-9 <br />2004 Annual Report <br />