What characterizes a Stage 3 situation in the context of utility detection?

In the context of utility detection, a Stage 3 situation is characterized by the possibility of unmarked utilities existing in the area being examined. This indicates that while some utilities may be present and potentially marked, there is still uncertainty regarding other utilities that might not have been identified or documented.

This stage emphasizes the inherent risks associated with utility work, where operators must exercise caution and conduct further investigation before proceeding with excavation or other activities. Understanding that utilities might be unmarked ensures that operators take the necessary precautions, which may include using ground-penetrating radar or other detection methods to uncover any hidden underground lines that could pose a risk. This awareness is crucial for ensuring safety and preventing accidents during utility-related work.