A utility locate request is made, and a gas line is marked. However, the exact depth is unknown, and the ground directly above is paved. How should the operator proceed to safely confirm the utility's precise horizontal and vertical location?

Question: A utility locate request is made, and a gas line is marked. However, the exact depth is unknown, and the ground directly above is paved. How should the operator proceed to safely confirm the utility's precise horizontal and vertical location?

Answer options:

• Use a vibratory compactor to loosen the pavement before excavating with the bucket. ✅ Carefully break the pavement using a hydraulic breaker attachment, then perform careful hand digging.
• Assume a standard depth for gas lines and proceed with mechanical excavation until contact.
• Have a spotter guide the bucket as it scrapes the pavement.

Correct answer: Carefully break the pavement using a hydraulic breaker attachment, then perform careful hand digging.

Explanation: When the depth of a utility is unknown, and it's within a hard surface, breaking the surface carefully (e.g., with a hydraulic breaker) and then hand digging is the safest method to expose and confirm the utility's location without damaging it. Mechanical excavation near unmarked or unconfirmed utilities is prohibited by OHS regulations.