San Onofre Nuclear Power Plant Shutdown As A Precaution

A potential leak in a “steam generator tube” prompted a precautionary shutdown of Unit 3 at the San Onofre Nuclear Generating Station on Tuesday evening, according to Southern California Edison (SCE) officials.

SCE: San Onofre Unit Shutdown "Precautionary"

A potential leak in a “steam generator tube” prompted a precautionary shutdown of Unit 3 at the San Onofre Nuclear Generating Station on Tuesday evening, according to Southern California Edison (SCE) officials.

The San Onofre atomic power plant in northern San Diego County.  Source: SCE: San Onofre Unit Shutdown "Precautionary" | NBC San Diego

Sensors installed in the reactor unit detected a possible leak in one of the unit’s steam generator tubes, according to officials.

“The potential leak poses no imminent danger to the public or plant workers. There has been no release to the atmosphere,” SCE said in a statement.

San Onofre personnel were working to evaluate the cause of the leak, according to officials.

“Unit 2 is currently offline for a planned maintenance, refueling and technology upgrade outage,” the statement said.

Power to customers was not expected to be affected.