What guideline must be followed when using mechanical excavation near existing piping?

When engaging in mechanical excavation near existing piping, it is crucial to maintain a safe distance to prevent any potential damage to underground utilities. The guideline of maintaining at least 5 feet of distance provides a buffer that helps ensure the integrity of the pipes is preserved and reduces the risk of accidents or disruptions.

This distance is commonly recommended because utility lines can vary in depth and placement, and even minor disturbances can lead to significant issues, such as leaks or ruptures. By adhering to this guideline, workers can approach their excavation tasks with a safer methodology that minimizes hazards not only to the utilities but also to personnel and the surrounding environment.

Utilizing this safety distance is especially important in construction and renovation areas where existing infrastructure may not be well-documented, thus safeguarding both the project and public utilities.