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Cost of coal mine equipment 4 million tons

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Cost of coal mine equipment 4 million tons

Annual production for the subbituminous mine is 4 million tons; for the lignite mines, it is 3 and 5 million tons. Wage and union welfare rates are those that went into effect under the Western Coal Wage Agreement of 1977. Costs of materials and equipment are based on first-quarter 1979 indexes. It is assumed that the mines have a 20-year life

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