“Full below-grade disposal of mill tailings is an option that has been developed specifically to eliminate concerns over the release of tailings due to catastrophic failure of a construction retaining berm or tailings dam.” (National Academy of Sciences Study , p. 153)

“Full below-grade disposal of mill tailings is an option that has been developed specifically to eliminate concerns over the release of tailings due to catastrophic failure of a construction retaining berm or tailings dam.” (National Academy of Sciences Study , p. 153)