11 February 2021
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Orano NPS has found no corrosion concerns or precursor indications of stress corrosion cracking (SCC) in 20-year-old stainless steel canisters in use at three US dry storage facilities for used nuclear fuel. Regulatory inspections of the canisters, all of which were loaded into their horizontal, above-ground NUHOMS storage modules more than 20 years ago, were carried out as part of an ageing management programme to verify the NUHOMS system is performing as designed.
An team and equipment trailer conducting an inspection at a NUHOMS dry storage installation for used nuclear fuel (Image: Orano NPS)
The lead canister at each of the Independent Spent Fuel Storage Installations (ISFSIs) was inspected to fulfil US Nuclear Regulatory Commission (NRC) licensing requirements for continued storage of used fuel in dry storage systems and site environmental evaluation criteria established by the Electric Power Research Institute (EPRI), Orano said. The Certificate of