ML19274C655
| ML19274C655 | |
| Person / Time | |
|---|---|
| Issue date: | 10/01/2019 |
| From: | Stephen Hammann NRC Region 1 |
| To: | |
| RAKOVAN L/NMSS/MSST | |
| Shared Package | |
| ML19274C654 | List: |
| References | |
| Download: ML19274C655 (16) | |
Text
Steve Hammann Decommissioning, ISFSI, and Reactor HP Branch
What is Reactor Decommissioning?
The process of removing a reactor facility safely from the operating mode to a permanent shutdown condition and reducing the residual radioactivity to a level that permits the release of the property for unrestricted use and termination of the license BEFORE AFTER Maine Yankee
Reactor Oversight Program Decom Oversight Program Decision to Cease Operations Permanent Cessation of Power Operations Fuel Offloaded to Spent Fuel Pool Reactors Materials 2 Resident Inspectors 1 Resident (3 months)
Decommissioning Staff Abandon Systems, Staff Changes, Revisions of Procedures Major Decommissioning and/or Storage Activities Certification of Permanent Fuel Removal PSDAR Submittal within 2 years of permanent cessation of power
What happens after shutdown?
Certification of permanent cessation of operations Certification of permanent removal of fuel from reactor Submission of Post Shutdown Decommissioning Activities Report (PSDAR)
Plant modifications Drain down systems Modify current systems for a shutdown state Abandon unneeded systems Prepare for either DECON or SAFSTOR
What happens to the spent fuel?
Typically removed from spent fuel pool Stored on-site in dry cask storage systems Safety and security programs remain until fuel removed from site
Why the need for Dry Cask Storage?
Reprocessing of spent fuel not an option No national repository for spent fuel to date Pools meant for temporary storage encounter capacity issues
Consolidated Interim Storage Interim Storage Partners (ISP) in Texas
- Summer 2018 - NRC resumed the safety and environmental reviews
- May 2021 - safety and security reviews are scheduled to be complete Holtec International & Eddy Lea Energy Alliance in New Mexico
- February 2018 - Staff began detailed review
- March 2021-safety and security reviews scheduled to be complete
Decommissioning Options
DECON - Equipment, structures, etc., are removed or decontaminated to a level that permits unrestricted release
SAFSTOR - Plant is placed in a safe, stable condition and maintained in this state until it is subsequently decontaminated to levels that permit unrestricted release
Continued Deactivation &
Decommissioning (D&D)
License Termination Plan Any site restoration NRC license termination Spent fuel management
Connecticut Yankee & Rancho Seco
How does the NRC inspect decommissioning sites?
Oversight and monitoring conducted over the entire period of decommissioning process Oversight program is described in Inspection Manual Chapter (IMC) 2561 & 2690
What areas do we inspect?
Core Inspections Organization and management controls Maintenance and Surveillance activities Evaluation of modifications Spent fuel wet storage and handling Radiation protection Physical security Discretionary Inspections Can be used as supplemental guidance during conduct of core procedures Fire Protection Material accountability and control Emergency preparedness Decommissioning inspection program includes both core and discretionary inspections
How does emergency planning change?
Emergency preparedness remains All hazards approach utilized vs. formal pre-planned off-site radiological response plans