The design, manufacturing, deployment, monitoring and maintenance activities for the HI-STORM 100 system are all conducted to ensure the safe storage of spent nuclear fuel. The aging management plan is under currently (July 2020) review by the NRC. Generally speaking, the first, baseline, inspection will occur within 365 days of the 20th anniversary of the initial overpack loading at the site; in the case of Pilgrim, the first inspection will occur in 2034. While the timeframe for actual inspection is some time away, the operations department performs daily visual inspections of the casks on the pad. In addition, we continue to collect and analyze new information on aging effects based on inspection findings and/or industry operating experience to ensure the continued safe storage of spent nuclear fuel. For more information, click here for a non-proprietary version of the renewal application for the casks. Finally, the Energy Power Research Institute Dry Canister Storage Canister Inspection from Diablo Canyon can be found here, as well as an update on Inspections of Dry Storage Canisters here.
