Virginia Administrative Code (Last Updated: January 10, 2017) |
Title 4. Conservation and Natural Resources |
Agency 25. Department of Mines, Minerals and Energy |
Chapter 40. Safety and Health Regulations for Mineral Mining |
Section 5170. Failure of ventilation
Latest version.
-
When there has been a failure of mine ventilation other than a failure of a main fan as described in 4VAC25-40-5160, the operator shall:
1. Withdraw all persons from the unventilated active areas; and
2. De-energize the power in unvented active areas. The power shall not be restored or persons permitted to reenter the affected active areas until a certified foreman has determined that the flammable gas concentration in such active areas is less than 1.0%.
Historical Notes
Derived from VR480-05-1.2 § 15.241, eff. July 19, 1989; amended, Volume 14, Issue 17, eff. July 1, 1998.
Statutory Authority
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.