Which action best describes the initial step in containing a hazmat spill to prevent spread?

Which action best describes the initial step in containing a hazmat spill to prevent spread?

• A. Notify authorities and wait
• B. Start decon operations immediately
• C. Diking/containment to prevent lateral spread
• D. Evacuate and ignore containment

Answer: (C)

Containing the spill with physical barriers, such as dikes or berms, to prevent lateral spread is the first step because it immediately limits how far the hazardous material can move. This containment buys time to assess the hazard, protect people and the environment, and plan subsequent actions like notification and decontamination.

Notifying authorities and waiting, while important, does not stop the spill from spreading. Starting decontamination too soon can spread the material further if containment isn’t yet in place. Evacuation may be necessary for safety, but without containment the risk remains high and the spread isn’t controlled.