§ 57.20031 - Blasting underground in hazardous areas.

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§ 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.

                    
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§ 57.20031 - Blasting underground in hazardous areas.

§ 57.20031 Blasting underground in hazardous areas.