ML24218A218
| ML24218A218 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 08/15/2024 |
| From: | Perry Buckberg Plant Licensing Branch II |
| To: | Jim Barstow Tennessee Valley Authority |
| Buckberg, P | |
| Shared Package | |
| ML24218A221 | List: |
| References | |
| EPID L-2024-LRM-0079 | |
| Download: ML24218A218 (4) | |
Text
August 15, 2024 LICENSEE:
Tennessee Valley Authority FACILITY:
Sequoyah Nuclear Plant, Units 1 and 2
SUBJECT:
SUMMARY
OF JULY 16, 2024, PUBLIC PRE-APPLICATION MEETING WITH TENNESSEE VALLEY AUTHORITY REGARDING A FUTURE SEQUOYAH NUCLEAR PLANT LICENSE AMENDMENT REQUEST RELATED TO CONTAINMENT PENETRATIONS AND FUEL HANDLING ACCIDENT ANALYSIS (EPID L-2024-LRM-0079)
On July 16, 2024, the U.S. Nuclear Regulatory Commission (NRC) staff held a virtual public meeting with representatives from Tennessee Valley Authority (TVA). The purpose of the meeting was to discuss the licensees plans to submit a license amendment request (LAR) applicable to Sequoyah Nuclear Plant, Units 1 and 2 (Sequoyah), to revise Technical Specification (TS) 3.3.6, Containment Ventilation Isolation Instrumentation, delete TS 3.9.4, Containment Penetrations, and to revise the Fuel Handling Accident (FHA) dose analysis. The meeting notice and agenda, dated June 25, 2024, are available in the NRCs Agencywide Documents Access and Management System (ADAMS) under Accession No. ML24178A311. A list of attendees is provided in the enclosure.
During the meeting, the licensee presented information (ML24191A064) regarding the proposed TS changes and the revised FHA dose analysis which does not credit containment penetration closures related to TSs 3.3.6 and 3.9.4. The proposed TS changes are expected to result in a more efficient outage schedule. The licensee also discussed which inputs and assumptions from the FHA dose analysis are expected to change which will include the FHA fuel decay time being reduced from 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> to 70 hours8.101852e-4 days <br />0.0194 hours <br />1.157407e-4 weeks <br />2.6635e-5 months <br />.
Below is a summary of the key comments and discussions:
- 1. Since revised FHA dose analysis will utilize Regulatory Guide (RG) 1.183, Rev. 0, Alternative Radiological Source Terms for Evaluating Design Basis Accidents at Nuclear Power Reactors, the revised FHA dose analysis should comply with RG 1.183, Rev. 0, footnote 11, regarding the applicability of the non-loss of coolant accident release fractions stated in the RG.
- 2. An FHA and new FHA input parameter comparison table, similar to the effective comparison table in the 2022 Vogtle Electric Generating Plant LAR (ML22181B066)
(begins on page 216), would help the NRC staff perform a more efficient review.
- 3. An explanation of how the FHA minimum decay time may change to 70 hours8.101852e-4 days <br />0.0194 hours <br />1.157407e-4 weeks <br />2.6635e-5 months <br /> with no change to TS 3.9.8, Decay Time would help the NRC staff perform a more efficient review.
- 4. The decay time countdown begins when the reactor becomes subcritical - Mode 3.
- 5. Consider information from the February 2024 and March 2024 FHA analyses related pre-submittal meeting summaries (ML24057A379 and ML24082A253).
The NRC staff did not make any regulatory decisions or commitments at the meeting. There were no members of the public in attendance.
Please direct any inquiries to me at 301-415-1383 or by e-mail to Perry.Buckberg@nrc.gov.
/RA/
Perry H. Buckberg, Senior Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328
Enclosure:
List of Attendees cc: Listserv
Enclosure LIST OF ATTENDEES JULY 16, 2024, VIRTUAL PUBLIC MEETING WITH TENNESSEE VALLEY AUTHORITY, ET AL.
SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 PRE-APPLICATION MEETING REGARDING TECHNICAL SPECIFICATION 3.3.6, 3.9.4, AND THE FUEL HANDLING ACCIDENT ANALYSIS U.S. Nuclear Regulatory Commission Branch Perry Buckberg -
NRR1/DORL2/LPLII-23 Elena Herrera Torres -
NRR/DORL/LPL14 Michael Mazaika, Anthony Torres -
NRR/DEX5/EXHB6 Hang Vu -
NRR/DEX/EICB7 David Rahn -
NRR/DEX/ELTB8 John Parillo, Sean Meighan, Elijah Dickson - NRR/DRA9/ARCB10 Hany Wagage, Justin Donohoe -
NRR/DSS11/SCPB12 Joseph Messina -
NRR/DSS/SFNB13 Ravi Grover -
NRR/DSS/STSB14 Tennessee Valley Authority Constellation Nuclear Andrew Taylor Lisa Simpson Jesse Baron Chris Carey Engineering Planning and Management, Inc.
Paul Parashak Vicken Khatchadourian Doug Pollock Andrew McNeil Mimi King-Patterson Russel Wells 1 Office of Nuclear Reactor Regulation 2 Division of Operating Reactor Licensing 3 Plant Licensing Branch II-2 4 Plant Licensing Branch I 5 Division of Engineering 6 External Hazards Branch 7 Instrumentation & Controls Branch 8 Long-Term Operations and Modernization Branch 9 Division of Risk Assessment 10 Radiation Protection and Consequence Branch 11 Division of Safety Systems 12 Containment and Plant Systems Branch 13 Nuclear Methods and Fuel Analysis Branch 14 Technical Specifications Branch
ML24218A221 (Package)
ML24218A218 (Summary)
ML24178A311 (Meeting Notice)
ML24191A064 (Meeting Slides)
OFFICE NRR/DORL/LPL2-2/PM NRR/DORL/LPL2-2/LA NRR/DRA/ARCB/BC NRR/DEX/EXHB/BC NAME PBuckberg ABaxter KHsueh BHayes (NTiruneh for)
DATE 08/05/2024 08/07/2024 08/14/2024 08/12/2024 OFFICE NRR/DEX/EICB/BC NRR/DSS/SFNB/BC NRR/DSS/SCPB/BC NRR/DSS/STSB/BC NAME FSacko SKrepel MValentin SMehta DATE 08/14/2024 08/09/2024 08/09/2024 08/09/2024 OFFICE NRR/DORL/LPL2-2/BC NRR/DORL/LPL2-2/PM NAME DWrona PBuckberg DATE 08/14/2024 08/15/2024