Category Archives: Millstone

Event Reports: More doors left open

A couple of items from Event Reports submitted to the Nuclear Regulatory Commission (NRC) last week concerned loss of containment. There have been a lot of incidents of this sort this year. 1. Last Wednesday morning at a time not … Continue reading

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Event Reports: False earthquake report in Minnesota and a false start on maintenance in Connecticut

Two items from today’s Event Notification Report page on the NRC website: 1. Friday afternoon, the Seismic Monitor at Minnesota’s Prairie Island nuclear power plant indicated an earthquake had occurred. Prairie Island operators determined that the alarm was invalid, based … Continue reading

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Event Reports: A reactor shuts itself down in Mississippi, a Fitness for Duty report from Connecticut and another day, another open door

From today’s Nuclear Regulatory Commission’s Event Notification Report page: 1. On Sunday, the sole reactor at the Grand Gulf nuclear power plant in Mississippi shut itself down following a turbine trip. Grand Gulf’s report stressed that all the shutdown systems … Continue reading

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Event Reports: Problems with Fitness for Duty program and an inoperable safety system

A couple of items from this week’s Nuclear Regulatory Commission’s Event Notification Reports page: 1. NRC regulations require both random and for-cause testing of nuclear workers for drugs and alcohol. As part of the program, some samples are submitted to … Continue reading

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NRC Event Reports: What’s the deal with all the open doors?

Last week, there were incidents involving loss of containment at the Oyster Creek and Limerick nuclear power plants due to doors being left open. Today, the Nuclear Regulatory Commission’s Event Reports page contains two more loss of containment incidents. The … Continue reading

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NRC Event Reports: Another fire potential report, a breach of containment, an impaired supervisor and a lot of reactor shutdowns

Here’s a week’s worth of items from the Nuclear Regulatory Commission’s Event Reports. (The summaries, in case you’re wondering, are mine.): As I told you last week, the nuclear industry is now reviewing plant operations in light of something called … Continue reading

Posted in Event Reports, Harris, Limerick, McGuire, Millstone, Nuclear Regulatory Commission, Saint Lucie | Tagged , , , , , , , , , | Leave a comment

Update: The six reactor sites the NRC will be studying for increased risk of cancer

According to an NRC press release, the six sites to be studied are: Dresden Nuclear Power Station, Morris, Ill. Millstone Power Station, Waterford, Conn. Oyster Creek Nuclear Generating Station, Forked River, N.J. Haddam Neck (decommissioned), Haddam Neck, Conn. Big Rock … Continue reading

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Update: NRC bent over backwards to not shut Millstone

As I told you this morning, Unit 2 at the Millstone nuclear power plant in Connecticut had to be shut down yesterday because the water used to cool the reactor exceeded the operational temperature set out in Millstone’s license. What … Continue reading

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Event Reports: Three nukes shut down (or should have been) over weekend; toxic gas release, high temperature, stuck control rod assembly to blame

1. Friday morning, operators at the Watts Bar nuclear power plant in Tennessee declared an emergency and issued a Notice of Unusual Event (NOUE) for the facility’s sole reactor. The NOUE was the result of the detection of a toxic … Continue reading

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Event Reports: Fitness for Duty, a maintenance error and a bad seal

Three items from this morning’s NRC Event Reports page: 1. On Friday morning, an employee supervisor at the Grand Gulf nuclear power plant failed a random Fitness for Duty screening. Test results showed the presence of prohibited drugs in the … Continue reading

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