"Federal officials are cautioning nuclear-powered plants that store spent fuel in dry casks to be on the lookout for water damage."

"Last week, the U.S. Nuclear Regulatory Commission issued an information notice detailing how moisture can degrade specific structures and components associated with dry spent fuel storage operations.

"By obtaining baseline measurements and performing periodic evaluations, accelerated degradation can be detected before the structures and components of a storage system are unable to perform their intended function," according to the notice.

The NRC's notice pointed to two separate events involving water-damaged containers that held spent fuel from both Peach Bottom Atomic Power Station and Three Mile Island in Dauphin County."

Sean Adkins reports for the York Daily Record April 26, 2013. [2]