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U.S. Department of the Interior agency that regulates coal mining and reclamation in the USA, as well as reclaiming mines abandoned before 1977.
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The industry is constantly working on new residue treatment methods to increase the removal of alkaline fluids and salts.
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Mining is the extraction of valuable minerals or other geological materials from the earth usually from an orebody, lode, vein, seam, reef or placer deposits.
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