Permission to construct dam, etc

The Minister may permit any person on such terms and in accordance with any law– (a) to construct and use any dam, reservoir or water race, or lay down pipes for the conveyance of water, or erect any wire or land cable for the purpose of conveying electricity, and to erect and use pumping or other machinery in connection therewith, through or upon any national lands (whether or not the land is a claim or area subject of a mineral right) for the purpose of working any claim; and (b) to take, direct, and use any water from any river, creek, tributary, stream, lake or pool, situated upon or flowing through any national lands for the purpose of supplying water for any machine, any engine or machinery employed for mining purposes; provided that such works shall not unduly interfere with existing rights or cause damage to the environment. 38 Mines and Minerals