Washington state’s only nuclear power plant has been shut down after operators received an indication that a system used to cool equipment wasn’t working. Officials said there was no release of radiation and no danger to the public. The Columbia Generating Station near Richland was shut down about 1:30 p.m. on Monday, Energy Northwest spokesman John Dobken said.

Officials hope to restart the plant sometime this week, Dobken told The Associated Press early Tuesday. The Tri-City Herald reported that the plant was shut down after operators were alerted to problems with the system that uses water to cool heat exchangers and pumps, including those that control the power level of the reactor. Energy Northwest says it seems that a water system valve may not have been in the right position, but adds that an investigation is ongoing. READ MORE