Supplemental environmental assessment for W.R. Grace & Co. vermiculite tailings impoundment closure plan, Libby, MT

By Montana. Department of State Lands

Subjects: Tailings dams, Environmental impact analysis, Vermiculite, Mines and mineral resources

Description: Evaluates the final design proposal submitted by W. R. Grace & Co. addressing the reclamation of it tailings disposal facility located near Libby, MT.