According to OSHA standards, how far should spoil piles be placed from the edge of an open excavation trench?

The correct answer is based on OSHA regulations that specifically state that spoil piles should be placed at least 2 feet away from the edge of an open excavation trench. This distance is established to ensure safety and stability around the excavation site. When spoil piles are too close to the edge, there is a higher risk of soil collapse and a potential falling hazard, which can endanger workers. By maintaining a minimum distance of 2 feet, it helps to reduce these risks and allows for a safer work environment, as it aids in preventing the excavation walls from becoming destabilized. This guideline is critical in excavation operations to promote safety and compliance with workplace regulations.