- K&R
Palisades Nuclear Generating Station
Radioactive water leak into Lake Michigan
On Saturday, May 4, 2013, a rooftop water tank leaked 79 gallons of radioactive water into Lake Michigan.[3]
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Donald C. Cook Nuclear Generating Station
Incidents
In 1976 two workers were killed in a recirculation pit (sump) by asphyxiation from argon inerting gas used to support welding on stainless steel piping.
July 13, 1990 one person was killed by electrocution and three others suffered severe burn injuries from a 4kv switchgear explosion.
In 1996, both units were shutdown for approximately three years because AEP had lost control of the design and licensing bases.
On May 12, 2002, Unit 2 was automatically shut down due to the failure of both redundant DC power supplies in the Reactor Control & Instrumentation System. Due to inadequate corrective actions, the same event occurred on February 5, 2003.
A transformer fire caused an automatic shutdown of Unit 1 in 2003 and release of cooling oil to Lake Michigan.
A massive intrusion of fish caused both units to be manually shut down for several weeks on April 24, 2003. Due to the degradation in Essential Service Water flow to the plants' Emergency Diesel Generators, the site entered the Emergency Plan at the Alert level. The Alert was exited approximately 25 hours later.
On September 20, 2008 unit 1's main turbine and generator were damaged by severe turbine vibrations caused by broken low-pressure turbine blades.[11] A fire also broke out in the generator of Unit 1. No radiation was released and Unit 2 continued to operate at full power.