Rule 24. Unless it is anticipated that an open pit will be flooded after abandonment, any waste rock or residual materials within the pit shall be sloped and graded so as to promote regeneration of vegetation.
Mich. Admin. Code R. 425.24
Rule 24. Unless it is anticipated that an open pit will be flooded after abandonment, any waste rock or residual materials within the pit shall be sloped and graded so as to promote regeneration of vegetation.
Mich. Admin. Code R. 425.24