Humboldt Bay

The plant was shut down in July 1976. The plant is in SAFSTOR. The decommissioning plan was approved in July 1988. The owner is evaluating the feasibility of early dismantlement with license termination in 2005. The 250-ft ventilation stack was replaced with a 50-ft vent stack that is less vulnerable to seismic-induced damage. An updated post-shutdown decommissioning activities report (PSDAR) was submitted on February 27, 1998. In September 1997 the owner successfully repaired groundwater leaks into the reactor building caisson. The grout injection effort reduced in leakage from about 7000 gal/day to less than 15 gal/day.