When excavation is within what distance of a pipeline facility, an OQ qualified representative must be present during all excavation and backfilling activities?

• A. 10 feet
• B. 15 feet
• C. 5 feet
• D. 25 feet

Answer: (A)

An OQ qualified representative must be present during all excavation and backfilling activities when the excavation is within 10 feet of a pipeline facility to ensure that safety protocols are strictly followed. This requirement is in place to minimize the risk of damage to the pipeline and to prevent potential accidents, which could have serious consequences.

The 10-foot rule reflects the importance of maintaining a safe working distance from buried pipelines, where the integrity of the pipeline could be compromised by excessive excavation or improper handling of equipment. The presence of a qualified representative helps ensure that proper procedures are followed, including monitoring the excavation work and ensuring that any necessary safety measures, such as using hand tools near the pipeline, are correctly implemented.

The other distances presented, although they may have their significance in different contexts, do not align with the specific requirement of a 10-foot radius set forth for pipeline facilities during excavation and backfilling activities.