Point where miners arm was caught removing ice chunk

A little over an inch opening

56.11001 Safe means of access shall be provided and maintained to all working places. 56.11002 Crossovers, elevated walkways, elevated ramps, and stairways shall be of substantial construction provided with handrails, and maintained in good condition. Where necessary, toe boards shall be provided.

56.20011 Areas where health or safety hazards exists that are not immediately obvious to employees shall be barricaded, or warning signs shall be posted at all approaches.

56.14211-Persons shall not work on top of, under, or work from mobile equipment in a raised position until the equipment has been blocked or mechanically secured to prevent it from rolling or falling accidentally. Also, no fall protection 56.15005

56.14107 Guarding & 56.14213(b) all welding operations shall be well ventilated.

56.20001 Intoxicating beverages and narcotics shall not be permitted or used on or around mines. Persons under the influence of alcohol or narcotics shall not be permitted on the job. 56.20013 Waste receptacles with covers

56. 12032 Inspection and cover plates & 56 56.12032 Inspection and cover plates & 56.12025 Grounding circuit enclosures.