Pacific Gas and Electric Co. says the work re-evaluates the impact that earthquakes and large waves could have on the plant near San Luis Obispo.
Federal regulators say the nuclear power plant near San Luis Obispo is safe to continue operating.
The Unit 2 reactor at California’s Diablo Canyon nuclear power plant has been shut down for scheduled refueling and maintenance.
Tuesday marks the 25th anniversary of the worst nuclear disaster in history at the Chernobyl Nuclear Power Plant near Pripyat, Ukraine.
Water pump repairs are complete on a Diablo Canyon nuclear power reactor that was shut down for a week after sensors detected a problem at the California coastal plant.
One of the Diablo Canyon nuclear power reactors has been shut down for repairs because of a problem with a water pump supplying the steam generators at the California coastal plant.
Operators at California’s two nuclear plants say their facilities can withstand a higher magnitude earthquake than scientists predict could ever strike the plants.
The safety of Southern California’s two nuclear power plants are facing increased scrutiny in the wake of the catastrophic quake in Japan.
Federal regulators say California’s Diablo Canyon and San Onofre nuclear power plants are operating normally and are being monitored by inspectors during the West Coast tsunami threat.