How far must hazardous materials or equipment be kept from the edge of excavations?

The correct answer is that hazardous materials or equipment must be kept at least 2 feet from the edge of excavations. This requirement is in place to ensure the safety of workers and to minimize the risk of accidents or spills that could occur if hazardous materials were too close to the edge of the excavation site. Maintaining this distance helps prevent potential collapses or falls that could happen if equipment or materials are too close to the unstable edge created by the excavation.

This safety measure is critical because excavations can create unpredictable ground conditions and increase the risk of hazardous situations. By maintaining a distance of 2 feet, excavators can provide a safer working environment and reduce the likelihood of workers coming into contact with hazardous materials inadvertently. This standard aligns with occupational safety regulations that prioritize worker health and safety on construction sites.