Category Archives: Prairie Island

Event Reports: Loss of offsite power, seismic vulnerability, a dropped control element assembly and another and another Fitness for Duty violation

This week in nuclear power kicked on Hallloween: 1. Friday afternoon, the Diablo Canyon nuclear power facility in California experienced an unplanned activation of all six of the plant’s emergency diesel generators when a thunderstorm knocked out offsite power to the station. … Continue reading

Posted in Cook, Diablo Canyon, Event Reports, Nuclear Regulatory Commission, Palo Verde, Prairie Island, Quad Cities | Tagged , , , , , , , , , , , , , | Leave a comment

Event Reports: Flooding shuts down Nebraska nuke, electrical problems close unit in Minnesota and a Texas nuke issues a report on invalid diesel generator activation after a couple of months

From today’s NRC Event Notification Report page: 1. The Fort Calhoun nuclear power plant in Nebraska began a controlled shutdown of the facility’s nuclear reactor as the National Weather Service issued a warning that the Missouri River would rise above … Continue reading

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Event Report: Loss of Control Room boundary at Minnesota nuke

Yesterday morning, the Prairie Island nuclear power plant in Minnesota lost both unit’s Control Room Special Vent Boundary when a door handle in the Control Room fell off. Air could be felt flowing through the hole, causing an opening in … Continue reading

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Event Reports: Leftover parts in Minnesota and a false alarm in Pennsylvania

A couple of items from today’s the Nuclear Regulatory Commission’s Event Notification Report page: 1. On New Year’s Eve, the Prairie Island nuclear power plant informed the NRC that it had “discovered that multiple upper lateral support shims and bumpers … Continue reading

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Event Reports: Reactors shut down in Minnesota, Wisconsin and Tennessee, and another alcohol-at-work incident; Minnesota incident involves small fires in both Emergency Diesel Generators

(Just a note on the above illustration: It’s from a gallery of Power Plant Trading Cards at: http://www.industcards.com/. I don’t make this stuff up, I just make fun of it.) Some items from this week’s NRC Event Reports page: 1. … Continue reading

Posted in Drunk at work, Event Reports, Fire, Fitness for Duty, Plant shutdowns, Point Beach, Prairie Island, Reactor problems, Sequoyah, Waterford | Tagged , , , , , , , , , , | Leave a comment

Event Reports: Tritium leak at Virginia nuke and a reactor scram in Minnesota

Two items from this morning’s NRC Event Reports: 1. The North Anna nuclear power plant notified the NRC that it had received a laboratory report from a water sample submitted on Feb. 17 from an on-site test well. The report … Continue reading

Posted in Event Reports, North Anna, Nuclear Regulatory Commission, Plant shutdowns, Prairie Island, Radiation leak, Reactor problems, tritium | Tagged , , , , , , , , | Leave a comment

Event Report: Minnesota nuke leaked condensate containing tritium following pump failure

Yesterday afternoon, a condensate return pump failed at the Prairie Island nuclear power plant in Minnesota, releasing 27 gallons water. Prairie Island released an unusually detailed report of what the water contained: “The release contained the following chemicals: 1) 11.2 … Continue reading

Posted in Coolant leak, Event Reports, Exelon, Nuclear Regulatory Commission, Prairie Island, Radiation leak | Tagged , , , , , | Leave a comment