Main storage magazines used to store explosives or detonators near working faces shall be constructed with only nonsparking material inside and equipped with covers or doors and shall be located out of the line of blasts, 25 feet from roadways, power lines and in a reasonably dry place protected from roof and rib falls.
4 Va. Admin. Code § 25-40-3330
Statutory Authority
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.