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The recoverable Wadge Seam reserves will be mined out, and production is expected to transition to the new Sage <br />Creek Portal. The estimated remaining mine life (reference date 01/13) will range from 3 to 5 years. The actual mine <br />life is subject to extension or reduction in case of either very weak or strong coal markets, resulting in reduced or <br />increased yearly production, and identification of any additional economically recoverable reserves. <br />Productivity estimates were based on expected mining conditions and analysis of productivities at other western <br />U.S. mines. It is expected that gradient and water inflows will significantly reduce down -dip development <br />productivities. It is assumed that four to six continuous miners and a high-capacity longwall will be required to <br />reach maximum yearly production. Continuous miner productivities would vary from 200,000 to 325,000 tons per <br />year per unit, depending on location. Longwall productivity is expected to be approximately 6,000,000-11,000,000 <br />tons per year, dependent on mining conditions. <br />Labor Force <br />The Foidel Creek Mine Labor force schedule is shown in Table 47, Labor Force Schedule. The total employee <br />numbers increase from an estimated 47 in 1983, for a one -section mine, to approximately 500, at full production. <br />The current work force is approximately 470 people (2012). <br />Mining Equipment <br />The Foidel Creek Mine will use standard mining methods and equipment commonly used in the western U.S. coal <br />industry. <br />A longwall section will contain the following representative list of equipment: <br />155 Shield Roof Supports <br />Armored Face Conveyor <br />Shearer <br />Stage -Loader <br />Electrics <br />Hydraulic System <br />Miscellaneous Pumps and Tools <br />A typical continuous miner section will contain the following equipment: <br />Continuous Miner <br />Shuttle Cars <br />Roof Bolter <br />Feeder -Breaker <br />Electrical Load Center <br />Mantrip Vehicle(s) <br />LHD Scoop <br />Parts Car <br />Continuous Haulage System <br />Rock Duster <br />Miscellaneous Pumps and Tools <br />The following types of utility and support equipment will be utilized in the Foidel Creek Mine (both underground <br />and surface): <br />Mine Ventilation System <br />Electrical Distribution System <br />Production Water Supply System <br />Conveyor Systems <br />RN 12-06 2.05-10 04/01/13 <br />