16 Tex. Admin. Code § 12.502 - Casing and Sealing of Underground Openings: Temporary
(a) Each mine entry which is temporarily
inactive, but has a further projected useful service under the approved permit
application, shall be protected by barricades or other covering devices,
fenced, and posted with signs, to prevent access into the entry and to identify
the hazardous nature of the opening. These devices shall be periodically
inspected and maintained in good operating condition by the person who conducts
the underground mining activities.
(b) Each exploration hole, other drill hole
or borehole, shaft, well, and other exposed underground opening which has been
identified in the approved permit application for use to return underground
development waste, coal processing waste or water to underground workings, or
to be used to monitor ground-water conditions, shall be temporarily sealed
until actual use.
Notes
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