30 CFR § 57.20031
Blasting underground in hazardous areas.
In underground areas where dangerous accumulations of water, gas, mud, or fire atmosphere could be encountered, persons shall be removed to safe places before blasting.
30 CFR § 57.20031
Blasting underground in hazardous areas.
In underground areas where dangerous accumulations of water, gas, mud, or fire atmosphere could be encountered, persons shall be removed to safe places before blasting.
