Misfires shall be reported to the certified foreman. The blast area shall be barricaded and posted with warning signs until the misfire has been disposed of by a certified underground blaster.
4 Va. Admin. Code § 25-40-3430
Statutory Authority
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.