During daylighting operations to expose a high-pressure natural gas pipeline, what is the primary safety concern that heavy equipment operators must be aware of, even when working nearby with hand tools?

Question: During daylighting operations to expose a high-pressure natural gas pipeline, what is the primary safety concern that heavy equipment operators must be aware of, even when working nearby with hand tools?

Answer options:

• Risk of electrocution from stray currents ✅ Potential for sudden release of high-pressure gas, leading to explosion or fire
• Structural collapse of the excavation trench
• Exposure to asbestos from older pipeline coatings

Correct answer: Potential for sudden release of high-pressure gas, leading to explosion or fire

Explanation: The primary safety concern with daylighting high-pressure gas pipelines is the potential for an uncontrolled release of highly flammable gas, which can lead to catastrophic explosions or fires. Operators must be trained on emergency procedures, and equipment that could generate sparks should be kept away.