The commission explains that licensees may choose from three alternative decommissioning strategies: DECON, SAFSTOR, or ENTOMB.
Under SAFSTOR, often considered "deferred dismantling," a nuclear facility is maintained and monitored in a condition that allows the radioactivity to decay.
Once the plant is shut down, workers will de-fuel the reactor and place the plant into SAFSTOR
, a process whereby a nuclear facility is placed and maintained in a condition that allows it to be safely secured, monitored and stored," the company said.
The work includes removing all 121 fuel assemblies from the reactor and storing them in the used fuel pool before commencing activities to place the unit in SAFSTOR
, a Nuclear Regulatory Commission-approved method for long-term monitoring and storage of a closed nuclear unit.