2014-03-18_REPORT - C1981010 (5)

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mined the Q and R seams and the I and 11 seams. H pit mined the G seam. The 3rd White Sandstone (G coal and sandstone below) and 2nd White Sandstone (F coal and sandstone below) are monitored at four locations. The Lewis Shale is monitored at one location. The Johnson and Pyeatt Gulch alluvial aquifers are monitored at one site in each of these drainages while the Flume Gulch alluvium is monitored at two locations. The 2012 hydrologic monitoring report, Hydro - Engineering, LLC (2013), presents the discussion of the monitoring results through 2012. The table on the pull- out index provides basic well data for all wells monitored in 2013. Wells 81 -03A, GE -1, GE -2, GE- 3, GLUX -1 and GP -6 were not required to be monitored after the first half of 2006. Springs at Trapper Mine were monitored during 2013 in accordance with the approved monitoring plan. Springs with measured flows of greater than 5 gpm were sampled for full suite water quality parameters. Results of the 2013 spring monitoring are presented in Table B -2 in Appendix B. Table 1 -1 (page 1 -5) presents the pit and well dewatering data and volume of water used for dust suppression for Trapper Mine for 2013. This data shows that no water was pumped from the Trapper Mine pits during 2013. Well dewatering was started in September of 2002 in the G pit. The average well pumping rate for 2013 was 26.0 gpm for the G pit well dewatering. This data is useful in interpreting water -level changes and consumptive use. Surface -water flow and quality were monitored at Flume Gulch (S -1), Johnson, No Name, Middle Pyeatt, East Pyeatt, West Pyeatt, Oak, Horse, Middle Flume, East Middle Flume, Deal Gulch and West Horse Gulch drainages during 2013. The Johnson, No Name, Ute, Middle Pyeatt, East Pyeatt, Oak, Horse, West Flume, Middle Flume, East Middle Flume, Deal Gulch, East Flume and West Horse Gulch drainages are Trapper's NPDES discharge sites 001, 002, 008, 009, Trapper Mining Company 1 -2 2013 Annual Report