2018-03-30_PERMIT FILE - C1981038 (4)

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§2.04 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING ACTIVITIES -- MINIMUM REQUIREMENTS FOR INFORMATION ON ENVIRONMENTAL RESOURCES. 2.04.11 Fish and Wildlife Resources Information. Refer to Volume I-Text, Section 2.04.11 for a discussion of mine related effects to fish and wildlife. This section concludes that mine development could impact endangered fish species by degrading water quality or by depleting the flow in the upper Colorado River. Surface drainage from the train loadout and stockpile facilities is controlled by two sediment ponds. Because of the surface water drainage control, no significant water quality degradation is expected to occur. A threatened and endangered inventory was prepared for the mine and loadout. The report was transmitted by letter dated December 1, 2015. The report is located in Volume 9A, Fish and Wildlife Tab. Refer to Exhibit 2 for a report by the United States Fish and Wildlife biological opinion concerning,among other issues,the impacts of the operation of the train loadout and stockpile area. The effect the mine development will have on the endangered fish species of the Colorado River Basin is usually determined by estimating the annual depletion of water from the upper Colorado River caused by mine development. The consumptive use of water associated with the mine includes water used for dust suppression, showers and personal use and losses due to evaporation. The consumption of water at the Bowie No. 1 mine is limited to evaporative loss from four sediment ponds as follows. Net lake evaporation is 31.62 inches. Pond Designation Pond Surface Area Evaporative Loss AF West Mine Pond W-1 0.10 0.26 West Mine Pond W-2 0.11 0.29 Loadout Pond 0.19 0.50 Coal Stockpile Pond 0.03 0.08 Totals 0.43 1.13 The evaporative loss attributable to the loadout is 0.58 AF (0.50+ 0.08). RN-07 2.04 - 31 02/18