Sequence a spill response using source control, containment, notification, and documentation.
Small spill A diesel sheen appears beside the fuel dock during a morning rush. Small releases teach the habits the team will use during larger incidents. Framework Hierarchy of controls Source before surface The most reliable response controls exposure at the source, then contains what already escaped. React Throw pads first and keep the line moving. Cleanup becomes treatment, not theater. Lower-level controls help, but they cannot compensate for an active source. 01 Source 02 Notify 03 Now you try First action
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