Conservation Measures.
Section 91
SEC. 91. Conservation Measures. - All lessees under this Decree shall take appropriate measures and undertake researches in accordance with the most modern practices to maximize recovery and wise utilization of minerals and stop or prevent wastes in mining and milling operations. Rules and regulations may be issued which shall require mine operators to utilize in their exploration, development, exploitation and utilization, the latest and most improved methods and devices to prevent wastes, or from causing pollution or otherwise damaging streams, surface or underground water supply, and valuable mineral deposits. During the productive operation of any mine or leased mineral lands, the operator or lessee shall take necessary measures to provide for the growth and development of any industry suitable for the area, other than mining in order that when the mine is exhausted or becomes no longer profitable for mining purposes the people residing therein or those who used to work for the mine will have a substitute industry or business activity to provide for their means of livelihood. Furthermore, the mine or leased area shall be placed in a condition suitable for habitation or agriculture, and free from danger of cave-ins, slides, and other risks brought about by the mining operations.