ML21342A221
| ML21342A221 | |
| Person / Time | |
|---|---|
| Issue date: | 12/09/2021 |
| From: | Tomeka Terry NRC/NMSS/DFM/IOB |
| To: | Geoffrey Miller Division of Fuel Management |
| Tomeka Terry NMSS/DFM/IOB 301-415-1488 | |
| References | |
| Download: ML21342A221 (6) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 December 9, 2021 MEMORANDUM TO: Geoffrey Miller, Deputy Director Division of Fuel Management Office of Nuclear Material Safety and Safeguards THRU:
Hipolito Gonzalez, Chief Inspection and Oversight Branch Division of Fuel Management Office of Nuclear Material Safety and Safeguards FROM:
Tomeka Terry, Project Manager Inspection and Oversight Branch Division of Fuel Management Office of Nuclear Material Safety and Safeguards
SUBJECT:
SUMMARY
OF THE NOVEMBER 9, 2021, HYBRID PUBLIC MEETING WITH REPESENTATIVES OF THE NUCLEAR INDUSTRY TO DISCUSSS APPROACHES TO ADDRESSING TORNADO HAZARDS DURING INDEPENDENT SPENT FUEL STORAGE INSTALLATION SHORT TERM OPERATIONS On November 9, 2021, the U.S. Nuclear Regulation Commission (NRC) staff conducted a hybrid public meeting with representatives from Nuclear Energy Institute (NEI), Holtec International (Holtec), Orano TN, and members of the public. The purpose of this meeting was to discuss approaches to addressing tornado hazards during independent spent fuel storage installation (ISFSI) short term, transient operations (STO). The public meeting notice and agenda topics are available in the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML21313A223. The enclosure to this document contains the meeting attendance list. Additionally, there were no regulatory decisions or commitments made by the NRC staff during the meeting.
During the public meeting, the NRC staff presented background information regarding the very low safety significance issue resolution (VLSSIR) process. NEI, Holtec, and Orano TN followed with presentations on ISFSI dry storage system protection during STOs. These presentations are available in ADAMS under Accession Nos. ML21313A183, ML21313A119, and ML21313A120, respectively.
CONTACT:
Tomeka Terry, NMSS/DFM 301-415-1488 Tomeka L. Terry Digitally signed by Tomeka L. Terry Date: 2021.12.09 15:47:51 -05'00' Hipolito J.
Gonzalez Digitally signed by Hipolito J. Gonzalez Date: 2021.12.09 15:51:50 -05'00'
G. Miller Discussion The meeting promoted an open dialogue with representatives from NEI, Holtec, Orano TN, the nuclear industry, and members of the public. There were over 105 participants including the NRC staff.
On June 23, 2021 (ADAMS Accession No. ML211754A046), Holtec submitted to the NRC a cover memo and position paper DS-481, Consideration of Transient Loadings during Short Term Operations. The position paper provided Holtecs method to treat transient or transitional evolutions that occur during STOs in a cask loading campaign. During the public meeting the NRC staff asked clarifying questions and provided perspectives. Presentations focused on industry viewpoints and approaches to addressing ISFSI dry storage cask system protection during STOs when cask systems may be undergoing a transition from one configuration to another during transient operations (e.g., upending or down ending activities, change out of the rigging, use of an air pallet system, or assembly of a closure lid). According to the industry, a deterministic tornado analysis is not required for loaded cask systems during transient operations. Instead, general licensees reduce the probability of a tornado missile strike through use of administrative controls (e.g., a local weather check) to ensure cask movement does not take place during inclement weather and/or they can place the cask in a safe condition upon recognition of adverse weather. Industry considers the issue as very low safety significance and asserts that application of administrative actions to restrict operations during the risk of tornados has been considered acceptable by NRC for some licensees. As such, the industry believes the VLSSIR process should be applied to this issue. They further stated that if general licensees are required to change structures, systems, and components (SSC), procedures, or other aspects for ISFSI operations, then industry considers this backfitting.
During the meeting the NRC staff discussed that the original vendor licensing reviews identify generic configurations and important to safety (ITS) SSCs for tornado missile protection. The general licensees may have different configurations and introduce new ITS SSCs than what the staff reviewed and must perform an evaluation as required by 10 CFR 72.212(b)(6) Condition of General License Issued under 10 Part 72.210, for site-specific configurations and parameters and must design new ITS SSCs for protection against environmental conditions and natural phenomena as required by 10 CFR 72.122(b). The NRC staff also presented background information regarding the VLSSIR process. The NRC committed to continue to evaluate this issue consistent with NRC processes, including the VLSSIR process, as appropriate, and will ensure coordination/communications between all Regional and Headquarters staff on the disposition of these issues.
The meeting also provided members of the public the opportunity to ask questions and provide comments to the NRC staff. The NRC staff received one comment from the public related to the intent of 10 CFR Part 72 and reiterated how it applies to the discussion about STOs.
Action Items/Next Steps The NRC continues to evaluate regulatory applicability and safety significance (e.g., exposure time and consequences) and that NRC actions will be licensing bases dependent. The NRC will engage individual licensees and vendors regarding specific inspection findings and observations and continue the open dialogue with the industry as this issue is addressed further.
Enclosure:
List of Attendees
- via email OFFICE DFM DFM DFM DFM NAME TTerry*
WWheatley*
DHarrison*
HGonzalez*
DATE 12/8/2021 12/9/2021 12/9/2021 12/9/2021
Enclosure LIST OF ATTENDEES NOVEMBER 9, 2021, HYBRID PUBLIC MEETING WITH THE NUCLEAR INDUSTRY TO DISCUSS APPROACHED TO ADDRESSIG TORNADO HAZARDS DURING ISFSI STOs Name Affiliation John Lubinski Nuclear Regulation Commission (NRC)
Robert Lewis NRC Shana Helton NRC Linda Howell NRC Hipo Gonzalez NRC Marlone Davis NRC Matt Learn NRC Haile Lindsay NRC John McKirgan NRC Tomeka Terry NRC Donnie Harrison NRC Alayna Pearson NRC Mike King NRC Mirabelle Shoemaker NRC James Downs NRC Brett Klukan NRC Aaron Thomlinson NRC Angela Coggins NRC Audrey Klett NRC Briana DeBoer NRC Charles Kreuzbergur NRC Christian Jacobs NRC David Beaulieu NRC Don Habib NRC Jennifer Dalzell NRC Jeremy Tapp NRC John Nicholson NRC Jenny Weil NRC Jeremy Groom NRC Jon Woodfield NRC Jonathan Evans NRC Jonathan Rowley NRC Ray Kellar NRC Lee Brookheart NRC Lisa Dimmick NRC Marjorie McLaughlin NRC Mary Muessle NRC Neil Sheehan NRC Paula Cooper NRC Robert Williams NRC
Name Affiliation Samantha Lav NRC Steven Koenig NRC Yan Chan NRC Jennifer Uhle Nuclear Energy Institute (NEI)
Mark Richter NEI Rod McCullin NEI Andrew Mauer NEI Brett Titus NEI Janet Schlueter NEI Melody Rodriguez NEI Tim Riti NEI Jerry Bonanno NEI Stefan Anton Holtec International (Holtec)
Kimberly Manzione Holtec Matthew Block Holtec Chuck Bullard Holtec Christopher OMullane Holtec Brian Seawright Holtec Debu Majumdar Holtec Dylan Miller Holtec Kyle Trotter Holtec Michael Beal Holtec Michael Williams Holtec PK Chaudhary Holtec Ryan Depalo Holtec TK Chadway Holtec Raheel Haroon Orano TN Don Shaw Orano TN Clay Channell Southern Nuclear Barry Coleman Southern Nuclear Cheryl Gayhart Southern Nuclear Keith Brown Southern Nuclear Lucas Wessel Southern Nuclear Carrie Osborn Southern Nuclear Brian Gutherman Gutherman Technical Service, LLC Darani Reddick Exelon Nuclear Kenn Hunter Exelon Nuclear Jeff Stone Exelon Nuclear Joe Dougherty Exelon Nuclear Zachary Kitts Exelon Nuclear Gary Voss Exelon Nuclear David Kneeper Exelon Nuclear Christian Williams Exelon Nuclear Christian Jacobs Exelon Nuclear Abbas Abady Exelon Nuclear Benjamin Day Exelon Nuclear George Budock Exelon Nuclear Michael Cazzolli Exelon Nuclear Glenn Stewart Exelon Nuclear
Name Affiliation Larry Smith Exelon Nuclear Jason Zorm Exelon Nuclear Jenneth Greene Exelon Nuclear Joseph Ruark Exelon Nuclear Joseph Van Amberg Exelon Nuclear Jullianna Yockey Exelon Nuclear Kate Ebnet Exelon Nuclear Kenneth Slough Exelon Nuclear Madison Long Exelon Nuclear Patrick Simpson Exelon Nuclear Arthur Simpson Exelon Nuclear Brian Briggs Wolf Creek Colby Thortsen Wolf Creek Michael Boyce Wolf Creek Robert Kelley Wolf Creek Tony Harris Wolf Creek Ali Albaaj STP Nuclear Operating Company Gina Haub STP Nuclear Operating Company Mark Oswald STP Nuclear Operating Company George Carver NAC International Kyle Duke Pacific Gas and Electric Richard Higler Pacific Gas and Electric Tom Tramm Certrec Don Conly Certrec Randle Granaas Southern California Edison Robert Quinn Westinghouse Corey Cameron Omaha Power Public District Carlyn Greene UXC Paul Plante 3 Yankees Tommy Leshinskie Vermont Public Service Department Keith Waldrop Electric Power Research Institute David Htlker ExTen Steve Baker Transware Enterprises Leo Shanley Jensen Hughes Mark Tursa General Electric Brandy Lopez TGNE Nick Taggiano Fulltech International Nicole Good STARS Phil Couture Entergy Suzanne Leblang Entergy