An excavator operator accidentally ruptures a hydraulic line, spilling approximately 15 litres of hydraulic oil onto bare soil at a construction site. What is the immediate and most appropriate first action the operator should take?

Question: An excavator operator accidentally ruptures a hydraulic line, spilling approximately 15 litres of hydraulic oil onto bare soil at a construction site. What is the immediate and most appropriate first action the operator should take?

Answer options: ✅ Stop the equipment, shut off the engine, and activate the spill kit to contain and absorb the spill.

• Attempt to divert the spill away from water bodies using available soil or sand.
• Immediately notify the site supervisor and wait for specific instructions.
• Cover the spill with dry soil to prevent further spread and then continue work.

Correct answer: Stop the equipment, shut off the engine, and activate the spill kit to contain and absorb the spill.

Explanation: According to typical site safety procedures and spill response protocols (OPSWA HEO curriculum, CCOHS guidance), the immediate priority is to stop the source of the leak, shut down equipment to prevent further release, and contain/absorb the spill using a readily available spill kit to minimize environmental impact and potential hazards.