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. MINING AND RECLAMATION PLAN <br />MT. GUNNISON NO. 1 MINE <br />January, 1986 <br />Revised April, 1989 <br />Revised October, 1989 <br />The direct mining costs attributable to the Post-F seam, based on <br />Mt. Gunnison experience, will exceed market prices prevailing for <br />the North Fork Valley Coal. Consequently, mining of the Post-F <br />seam coal is not economically viable. <br />3.4.7 Manpower Requirements <br />Existing and anticipated manpower requirements are shown in Table <br />3.4.4.A. Future manpower projections were based on existing <br />contracted coal sales and are subject to revision dependent upon <br />new contracts for additional coal sales. Future sales cannot be <br />projected at this time with any degree of accuracy due to extremely <br />soft market conditions. <br />3.4.8 Subsidence <br />The effect of mining-induced subsidence on renewable resources, <br />structures, and geologically unstable areas in the 5-year permit <br />area is discussed in a report entitled Subsidence Evaluation for <br />Mt. Gunnison No. 1 Mine. This report is included in this Mining <br />and Reclamation Plan as Exhibit 3.4.S.A. ~ supplemental,Subsidence <br />Evaluation is included in Exhibit 3.4.A.6. This is an evaluation <br />of the performance of F seam subsidence to date and predictions for <br />future mining in the 5-Year Permit area. WECC submits subsidence <br />monitoring reports on a semi-annual basis in a format approved by <br />the Division. <br />~J <br />3-78A <br />