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and have been mined in the A, B, and Z pits, currently only the A pit mines the H and I <br />coal seams while the Z pit mines the I seam. H prt mined the G seam. The 3rd White <br />Sandstone (G coal and sandstone below) and 2nd White Sandstone (F coal and sandstone <br />below) are monitored at seven locations. The Lewis Shale is monitored at one location. <br />The Johnson and Pyeatt Gulch alluvial aquifers are monitored at one site in each of these <br />drainages while the Flume Gulch alluvium is monitored at two locations. The 2000 <br />hydrologic monitoring report, Hydro-Engineering, LLC (2001), presents the discussion of <br />the monitoring results through 2000. The table on the pull-out index provides basic well <br />data for all wells monitored in 2001. <br />Springs at Trapper Mine were monitored during 2001 in accordance with the <br />approved monitoring plan. Springs with measured flows of greater than 5 gpm were <br />sampled for full suite water quality parameters. Results of the 2001 spring monitoring are <br />presented in Table B-2 in Appendix B. <br />Table 1-1 (page i-4) presents the pit and well dewatering data and volume of <br />water used for dust depression for Trapper Mine for 2001. This data shows that, on an <br />average, approximately 18 gpm was pumped from the Trapper Mine pits during 2001. No <br />well dewatering was done in 2001. The average pit pumping rates were 10, 1 and 7 gpm <br />for the A, D and F pits, respectively. This data is useful in interpreting water-level changes <br />and consumptive use. <br />Surface-water flow and quality were monitored at only Flume Gulch (S-1), <br />Johnson, No Name, Oak, West Pyeatt and East Pyeatt drainages during 2001. The <br />Johnson, No Name, East Buaard, Coyote, West Buaard, Ute, Middle Pyeatt, Elk, East <br />Pyeatt, Deer, West Pyeatt, Far East Buaard, Grouse, Sage, Oak, Horse, West Flume, <br />1-2 <br />