Substantial deposits of low-grade iron ore are located in the Upper Peninsula of this state. The development and continuation of the industry of mining and beneficiating low-grade ores will provide employment and generally improve economic conditions in that area and will be in the public interest and for the public welfare of this state. As the mining and beneficiating of the low-grade iron ore requires considerable quantities of water, it is necessary that persons engaged in or about to engage in the mining and beneficiation of low-grade iron ores be assured of an adequate and continuing supply of water for the operations to protect the large capital expenditures required for mills, plants, and other improvements. Therefore, the use of water in connection with the mining and beneficiation of low-grade iron ores is in the public interest, for the public welfare, and for a public purpose, and permits for the use of water or waters may be issued by the department in connection with the mining and beneficiation of low-grade iron ores as provided in this part.