How far from the nearest working face in each section and construction/rehabilitation site should one SCSR cache storage be placed?

The correct answer indicates that SCSR (Self-Contained Self-Rescuers) cache storage should be placed within 500 feet of the nearest working face in each section and construction or rehabilitation site. This distance is specified to ensure that miners have quick and easy access to emergency breathing apparatus in the event of an incident, such as a fire or explosion, where they may need to evacuate quickly.

Positioning the SCSR caches within this distance allows miners to reach life-saving equipment without unnecessary delay during high-stress situations. Accessibility is a crucial aspect of safety in mining operations, and the 500-foot guideline strikes a balance between placing the equipment close enough for swift access while also considering logistical challenges within the mine's layout.

In the context of the other distances provided, options that suggest caches should be within shorter or longer distances may not adequately provide the necessary safety margin required for efficient evacuation procedures, thereby potentially jeopardizing the safety of the workforce in emergency situations.