ML23229A004
| ML23229A004 | |
| Person / Time | |
|---|---|
| Issue date: | 08/22/2023 |
| From: | Carol Moyer, Sayoc E NRC/NRR/DNRL/NLIB |
| To: | |
| References | |
| Download: ML23229A004 (1) | |
Text
Subsequent License Renewal Guidance Update GALL-SLR/SRP-SLR Notable Proposed Revisions Structural U.S. Nuclear Regulatory Commission Emmanuel Sayoc, Carol Moyer August 22, 2023
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Background===
General Reminders
- Public comment period 7/11/23 to 9/11/23.
- Purpose of this meeting is o to interact with the public regarding SLR Guidance o to provide an overview of the revision process and significant updates o to offer recommendations on how to best formulate comments to facilitate staff adjudication or resolution.
- No Staff decisions, findings, or commitments to be made during these public meetings.
- Comments should be submitted in writing with sufficient detail, justification or explanation.
o Mark up of proposed changes is highly recommended 3
Submission of Comments
- Preferred Method o Go to https://www.regulations.gov and search for Docket ID NRC-2023-0096.
o Submit comments online.
- Alternate Method o Mail comments to: Office of Administration, Mail Stop: TWFN-7-A60M, U.S.
Nuclear Regulatory Commission, Washington, DC 20555-0001, ATTN: Program Management, Announcements and Editing Staff.
- Deadline September 11, 2023 4
Guidance Documents for Subsequent License Renewal (SLR)
- NUREG-2191, Generic Aging Lessons Learned for Subsequent License Renewal, (GALL-SLR) o Revision 0, published May 2017, Vol 1. ML17187A031, Vol 2. ML17187A204 o Revision 1, Draft for Comment, published July 2023, Vol 1. ML23180A182, Vol 2. ML23180A188
- NUREG-2192, Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power Plants, (SRP-SLR) o Revision 0, published May 2017, ML17188A158 o Revision 1, Draft for Comment, published July 2023, ML23180A191 o Revision 1, Draft for Comment, Corrected Tables 3.1-1 and Table 3.2-1, published August 2023, ML23213A036
- NUREG-2221, Technical Bases for Changes in the Subsequent License Renewal Guidance Documents NUREG-2191 and NUREG-2192, (Tech. Basis Doc.)
o Published Dec 2017, ML17362A126 o Supplement 1, Draft for Comment, Published July 2023, ML23180A208 Public Comment Period: 7/11/23 to 9/11/23 5
Bases for Updates to SLR Guidance Documents
- Revised and new guidance based on:
o New or updated industry guidance, and Codes and standards o Plant operating experience o Research o To fill gaps or make technical revisions in guidance identified from previous SLR reviews
- Substantive corrections
- Incorporate completed SLR-ISGs since initial SLR guidance development.
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Summary of Notable Proposed Revisions (Structural)
Incorporation of Completed Interim Staff Guidance (ISGs)
- Structural ISG (SLR-ISG-2021-03-STRUCTURES) issued 2/18/2021 (ML20181A381) 8
AMP XI.S6 Structures Monitoring
- Added wooden poles as a structural component requiring an aging management review.
o based on the review of recent SLRAs, o due to the service life of wooden poles
- Changes to the SRP-SLR and GALL-SLR Report provide guidance on adequate management of aging effects in wooden poles
- Recommend a further evaluation to help determine applicable inspection method and frequency of inspection for the wooden poles.
AMP XI.S6 Structures Monitoring, XI.S7 Inspection of Water-Control Structures
- Redefined Chapter IX environments to include raw water, groundwater, or soil (aggressiveness defined by pH level, chlorides level (ppm), and sulfates level (ppm).
- Update XI.S6, Structures Monitoring, Detection of Aging Effects program element to add reinforced concrete structural fire barriers (walls, ceilings, and floors) for visual inspection in accordance with GALL-SLR Report AMP 10 XI.M26.
Questions and Discussion 11