Cooper Nuclear Station Exits “Notification of Unusual Event” Status Sunday, March 24

Nebraska Public Power District and Cooper Nuclear Station management announced at 4:01 p.m. Sunday, March 24, the plant had exited the emergency classification of a Notice of Unusual Event (NOUE) status it entered early March 15.

Missouri River water levels near Cooper have dropped to 896 feet mean sea level, three feet below 899 feet MSL – the level at which Cooper was required to enter the emergency classification status. Weather forecasts and U.S. Army Corps of Engineers expected upstream dam releases indicate the river’s level at Brownville will slowly continue to drop. Utility officials made the decision after several days of river elevations consistently dropping below the 899-feet sea level mark and discussing the decision with county and state agencies. Plant staff also conducted a thorough assessment of the site’s emergency preparedness plan before making the decision to exit the NOUE.

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