The Nuclear Regulatory Commission is requesting additional information from Holtec International concerning its January license amendment request for the HI-STORM 100 nuclear waste storage system, which is intended to update the system’s manufacturing and site loading process.
HI-STORM 100 is a dry-cask storage system for spent light-water reactor fuel. According to Holtec, at least 80 systems have been deployed at storage sites all over the world.
According to the Holtec filing in January, the requested licensing changes would allow expedited operations at the Vermont Yankee Nuclear Power Plant; improvements for as low as reasonably achievable (ALARA) exposure at other nuclear plants; enhancements for worker safety; and alleviation of unnecessary surveillance on owners of ISFSI sites prone to unfavorable weather conditions.
In a Nov. 17 filing that was made public Monday, the NRC requested additional information concerning thermal evaluation of the system, shielding evaluation, criticality evaluation, and materials evaluation. Holtec has until Dec. 22 to respond to the request.
