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• 3) a. Mine portal construction, shop buildings and other surface <br />plant facilities will require limited amounts of water, mainly for <br />the concrete which will be used in foundations, retaining walls, etc. <br />This concrete will be purchased from ready-mix plants in Durango. <br />Dust control, compaction and other minor needs can be met with <br />water hauled from privately owned sources to the mine site. <br />b. The underground coal mining operation will require water <br />at an estimated rate of 25 gallons per ton of coal mined. Small <br />amounts of water will be required outside the mine for dust control, <br />wetting of fine coal dumps in the summer, for personnel, and other <br />small uses, The total daily requirements will be about 3, 000 gallons <br />• per day at the planned rate of coal production, 100 tons per day. <br />c. After the mining operation expires, the 35 acres used for <br />the portal areas [see Map Q], surface plant and mine waste rock <br />dumps will be leveled and graded into the existing topography and <br />planted with trees or shrubs, and possibly grasses. Water for the <br />reclamation attd reseeding can come from the same sources as the <br />water being used in the mining operation at the time of closing down. <br />4) Estimate of water requirements: I~or the initial mine con- <br />struction work, 50-100 thousand gallons may be required depending <br />on the season. <br />-19- <br /> <br />