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After thinking about it a little more I’m not certain i want to risk the potential interest in my interest. For now I found this link to: Perspective on Radiation Releases and Emergency Planning
at U.S. Nuclear Power Plants

“Severe accident management guidance that deals with beyond design-basis scenarios
addressing severe seismic or fire-related accident sequences resulting in complete loss of
off-site and on-site emergency power and complete loss of cooling.
This guidance was
also revised for plant operator responses to the consequences of large aircraft impact.”


Edit: http://www.nei.org/Master-Document-Folder/Backgrounders/Fact-Sheets/Safely-Managing-Used-Nuclear-Fuel?page=1

“Dry Containers. About one-half of U.S. nuclear plants are storing used fuel in large, rugged containers made of steel or steel-reinforced concrete. Depending on the design, a container can hold up to 37 pressurized water reactor fuel assemblies or 87 boiling water reactor fuel assemblies. The containers have a 20-year license. After 20 years, with NRC approval, the license could be extended for another 20 to 40 years.”