On March 24, 2026, the Oregon Department of Energy participated in one of its annual nuclear emergency exercises. This year’s exercise involved a “hostile act” scenario at the Columbia Generating Station. In the scenario, CGS alerted Oregon of explosions on site that could affect the safety of the plant. Over the course of the exercise, our experts discussed risks to Oregon and potential actions residents in Morrow or Umatilla counties would need to take to stay safe.

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