R11-2-602. Erosion Control and Topographic Contouring

A. Mining units shall be reclaimed to a stable condition for erosion and seismic activity. B. Grading and other topographic contouring methods shall be conducted, as necessary, to establish final land forms which are: 1. Suitable for the post-mining land use objective in the approved reclamation plan. 2. Stable under static and dynamic conditions as certified by a qualified engineer considering the following: a. Site-specific seismic conditions; b. Safety consistent with good engineering practices; and c. The hazard to public safety, if failure occurs. C. Site-specific grading, revegetation, or other proposed erosioncontrol measures shall be conducted, as necessary, to address erosion so that permanent piles of mine development rock, overburden, and tailings shall not restrict surface drainages in a manner that contributes to excessive erosion or which compromises the stability of the reclaimed facility.