What is the typical sequence of actions in HazMat Operations after stabilizing a release?

What is the typical sequence of actions in HazMat Operations after stabilizing a release?

• A. Evacuation, medical triage, investigation, and debrief
• B. Sampling, labeling, shipping, and disposal
• C. Public messaging, shelter-in-place, reentry plan, and debrief
• D. Diking/containment, decon, packaging, and removal of contaminated materials; then site restoration

Answer: (D)

After a release is stabilized, the on-scene actions focus on preventing further spread, cleaning up, and returning the area to a safe condition. Containment is done first to stop any remaining hazard from moving off the site or into sensitive areas. Then decontamination follows to remove contamination from personnel, equipment, and surfaces, reducing exposure risk and preventing secondary contamination. Once decon is under way or completed, the contaminated materials are packaged properly so they can be transported for disposal. Finally, the site is cleared and restored, which includes removing residual hazards and bringing the area back to a safe, functional state.

This flow matches the sequence of diking or containing the spill, performing decontamination, packaging the contaminated waste, removing it, and then restoring the site. The other options mix in public communications, evacuation, or post-incident activities that occur at different stages of incident management, not the on-scene actions that follow stabilization.