Minnesota Administrative Rules
Agency 158 - Natural Resources Department
Chapter 6132 - NONFERROUS METALLIC MINERAL MINING
RECLAMATION STANDARDS
Part 6132.2200 - REACTIVE MINE WASTE
Universal Citation: MN Rules 6132.2200
Current through Register Vol. 49, No. 13, September 23, 2024
Subpart 1. Goals.
Reactive mine waste shall be mined, disposed of, and reclaimed to prevent the release of substances that result in the adverse impacts on natural resources.
Subp. 2. Requirements.
A mining operation must meet the requirements in items A to D.
A. Chemical and physical
characterization of mine waste must be conducted before the submission of an
application for a permit to mine and continuously after that during the process
of mining under part 6132.1000.
B.
A reactive mine waste storage facility must be designed by professional
engineers registered in Minnesota proficient in the design, construction,
operation, and reclamation of facilities for the storage of reactive mine
waste, to either:
(1) modify the physical or
chemical characteristics of the mine waste, or store it in an environment, such
that the waste is no longer reactive; or
(2) during construction to the extent
practicable, and at closure, permanently prevent substantially all water from
moving through or over the mine waste and provide for the collection and
disposal of any remaining residual waters that drain from the mine waste in
compliance with federal and state standards.
C. The reactive mine waste storage facility
design shall:
(1) describe all materials,
construction, and operating performance specifications and limitations that
must be maintained to ensure protection of natural resources;
(2) identify monitoring locations to ensure
compliance with the design; and
(3)
include a schedule for inspection of the reactive mine waste storage facility
construction, operation, and reclamation including closure and postclosure
maintenance, by the design engineers, to ensure compliance with the design. In
the event the design engineers become unable to perform the inspections, the
engineers shall be replaced by persons who meet the qualifications of part
6132.2200, subpart 2, item B, and that can demonstrate an understanding of the
design and an ability to perform the necessary inspections.
D. The commissioner may allow
variance from specific reclamation requirements of parts 6132.2100 and
6132.2300 to 6132.2700 if their use would inhibit designs necessary to meet the
requirements of this part.
Statutory Authority: MS s 93.44 to 93.51; 103G.222
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