ML23177A114
| ML23177A114 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/26/2023 |
| From: | Division of Operating Reactors |
| To: | |
| References | |
| Download: ML23177A114 (1) | |
Text
Seabrook Station Annual Assessment Meeting 1
Reactor Oversight Process - 2023 June 27, 2023
Meeting Conduct
- Please respect other members of the public
- Please be conscious of your speaking time
- Questions will be addressed during the Question-and-Answer session following the presentation.
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Agenda - Seabrook
- 2022 ROP Plant Performance Assessment and Inspection Activities
- NRC Inspection of Alkali-Silica Reaction (ASR)
- Public Question and Answer 3
Ray McKinley Deputy Director, Region I Division of Operating Reactor Safety
Seamus Flanigan Resident Inspector Travis Daun Sr. Resident Inspector Nik Floyd Senior Engineer Mel Gray Engineering Branch Chief Matt Young Branch Chief NRC Panelists 4
NRC Independent Safety Inspections Reactor Oversight Process
- Full-time NRC resident inspectors
- NRC specialists conduct additional inspections at each nuclear plant
- NRC inspectors have unfettered access to all plant activities related to nuclear safety and security 5
NRC Independent Safety Inspections Reactor Oversight Process 6
2022 ROP Plant Performance Assessment at Seabrook
- Seabrook operated safely and in a manner that preserved the public health and safety and protected the environment
- All green performance indicators
- All very low safety significance findings
- The plant will receive the baseline level of inspection in 2023 7
2022 NRC Inspection Activities at Seabrook
~4000 hours of inspection and related activities
- Examples of Resident Inspections maintenance activities surveillance tests operator performance emergency preparedness drills
- 2022 Team Inspections Security Baseline Design Bases Assurance Inspection EP Exercise Radiation Protection/Environmental Monitoring Problem Identification and Resolution 8
NRC Inspection of ASR at Seabrook 9
In 2022, the NRC completed inspections to assess NextEras performance to manage the effects of ASR in Seabrook structures
- Resident inspectors and specialist from Region I and NRC Headquarters involved
- Focused on compliance with NRC-approved methodology and license conditions NRC inspections in 2022 determined Seabrook structures remain capable of performing their safety functions NRC inspectors identified one finding of very low safety significance
- 2Q2022 finding related to not monitoring through-wall expansion of ASR in required Tier 3 locations
Seabrook Annual Assessment Meeting Closing Remarks 10
NRC Social Media Channels
- LinkedIn: www.linkedin.com/company/u-s--nuclear-regulatory-commission/
- Instagram: www.instagram.com/nrcgov
- Facebook: www.facebook.com/nrcgov/
- Flickr:
www.flickr.com/photos/nrcgov/
- Twitter:
www.twitter.com/#!/nrcgov
- YouTube: www.youtube.com/user/NRCgov
- RSS:
www.nrc.gov/public-involve/listserver.html#rss 11
Annual Assessment Meeting Feedback
- 1. Mail in NRC feedback form
- OR -
- 2. Scan QR Code on back of form with smart device
- OR -
- 3. At any computer, go to the Public Meeting Schedule and press the Meeting Feedback link for this meeting - or - press the [more] link for this meeting and then press the Meeting Feedback link on the Meeting Details page.
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For Additional Information Contact a Public Affairs Officer 13 Diane Screnci Sr. PAO 610/337-5330 Diane.screnci@nrc.gov Neil Sheehan PAO 610/337-5331 Neil.sheehan@nrc.gov
Q&A Session 14 Question & Answer Session
Thank you for your participation
Reference Slides 16
Structural Modification Examples 17 Example 1 -
Strong backs Example 2 -
Corner braces
Structural Modification Examples 18
Throughwall Expansion Monitoring 19 Expansion Through wall expansion with borehole extensometer