flooding


Flooding at Nine Mile Point

, director, Nuclear Safety Project

Regulation and Nuclear Power Safety #1

In July 1981, water flooded the Radwaste Processing Building containing highly radioactive waste for Unit 1 at the Nine Mile Point nuclear plant in upstate New York. The flood tipped over 55-gallon metal drums filled with highly radioactive material. The spilled contents contaminated the building’s basement such that workers would receive a lethal radiation dose in about an hour. The Unit 1 reactor had been shut down for over two years and was receiving heightened oversight attention when the Nuclear Regulatory Commission (NRC) investigated the matter. But the NRC was reacting to a television news report about the hazardous condition rather than acting upon its own oversight efforts. The media spotlight resulted in this long over-looked hazard finally being remedied. Read more >

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Nuclear Regulatory Commission’s Safety Dashbored

, director, Nuclear Safety Project

Who says the Nuclear Regulatory Commission does not have a delightful sense of humor?

Not me. Not anymore. Not after stumbling across the NRC’s Generic Issues Dashboard on its website.

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Flooding at the Nuclear Plant

, director, Nuclear Safety Project

Disaster by Design/Safety by Intent #1

Disaster by Design

The March 2011 disaster at the Fukushima Daiichi nuclear plant in Japan did not reveal flooding to be a nuclear safety hazard; it reminded us of this well-known threat. Flooding from internal sources (e.g., broken pipes and failed storage tanks) and from external sources (e.g., heavy rainfall and swollen rivers) had long been recognized as a risk to be managed with an array of flood protection measures. As the following summaries—an abridged sampling among many such events—indicate, there were numerous reminders before Fukushima. Read more >

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