PURPOSE: This rule lists the basic technical issues expected to be addressed in a completed application for a Metallic Minerals Waste Management Permit and references other rules containing technical information.

1. (1) The closure and inspection-maintenance plans shall establish and explain the technical processes and steps proposed to accomplish and maintain closure. Issues expected to be addressed shall include, but should not be limited to:

   1. (A) The design, construction, and maintenance of waste control structures, tailings dams, waste stockpiles, and supporting facilities;
   2. (B) The characterization of waste products;
   3. (C) The methods for control and protection of surface water;
   4. (D) The methods for protection of groundwater and aquifers;
   5. (E) The geology and seismicity of the area;
   6. (F) The potential for subsidence;
   7. (G) The reuse and off-site removal of wastes; and
   8. (H) The surface reclamation of waste management areas.

2. (2) Consistent with section 444.362, RSMo and 10 CSR 45-6.020, the owner/operator shall comply with the appropriate technical requirements, standards, and guidelines published in the rules of other state and federal environmental programs. Supplemental guidelines for preparation, review, and approval of closure and inspection-maintenance plans are—

   1. (A) 10 CSR 45-8.020 Groundwater Protection;
   2. (B) 10 CSR 45-8.030 Metallic Minerals Waste Management Control Structures; and
   3. (C) 10 CSR 45-8.040 Reclamation-Reuse.

AUTHORITY: sections 444.362 and 444.380, RSMo 2016.* Original rule filed Oct. 2, 1990, effective April 29, 1991. Amended: Filed March 26, 2018, effective Nov. 30, 2018. *Original authority: 444.362, RSMo 1989 and 444.380, RSMo 1989, amended 1993, 1995.