Mont. Admin. r. 17.24.516 - ADJACENT STRIP AND UNDERGROUND MINING OPERATIONS
(1)
An operator who conducts a strip or underground mining operation adjacent to any
active or abandoned underground mining operation, must comply with the following:
(a) A 500-foot barrier pillar of coal must be
maintained between the strip and underground mining operations in any one seam. The
department, the mine safety and health administration, and the Montana division of
worker's compensation of the department of labor and industry, however, may approve
a lesser distance after a finding by the department that mining at a lesser distance
will result in:
(i) improved coal resources
recovery;
(ii) abatement of water
pollution; or
(iii) elimination of
hazards to the health and safety of the public.
(b) The vertical distance between strip and
underground mining operations working separate seams must be sufficient to provide
for the health and safety of the workers and to prevent surface water from entering
the underground workings.
(2)
The operator must also comply with ARM
17.24.632.
Notes
AUTH: 82-4-205, MCA; IMP: 82-4-227, MCA
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