The NRC continues to monitor impacts of Sandy on nuclear power plants in the Northeastern U.S., including an Alert declared at the Oyster Creek nuclear power plant in New Jersey. The plant, currently in a regularly scheduled outage, declared the Alert at approximately 8:45 p.m. EDT due to water exceeding certain high water level criteria in the plant’s water intake structure.
An Alert is the second lowest of four NRC action levels. The Alert was preceded by an Unusual Event, declared at approximately 7 p.m., EDT, when the water first reached a minimum high water level criteria. Water level is rising in the intake structure due to a combination of a rising tide, wind direction and storm surge. It is anticipated water levels will begin to abate within the next several hours.
As of 9 p.m. EDT Monday, no plants had to shut down as a result of the storm although several plants were already out of service for regularly scheduled refueling and maintenance outages. All plants remain in a safe condition, with emergency equipment available if needed.
The NRC has inspectors providing around the clock coverage at all of the plants that could experience effects of the storm, and agency response experts continue to monitor the storm from our emergency response centers, and track it as it travels inland.
It’s important to remember that nuclear power plant procedures require that the facilities shut down under certain severe weather conditions. The plants’ emergency diesel generators are available if off-site power is lost during the storm. Also, all plants have flood protection above the predicted storm surge, and key components and systems are housed in watertight buildings capable of withstanding hurricane-force winds and flooding.Eliot Brenner Public Affairs Director