ML24145A001

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5/29/2024, Annual Assessment Meeting for Seabrook Station - NRC Presentation Slides
ML24145A001
Person / Time
Site: Seabrook NextEra Energy icon.png
Issue date: 05/24/2024
From:
Division of Operating Reactors
To:
References
Download: ML24145A001 (1)


Text

Seabrook Station Annual Assessment Meeting 1

Reactor Oversight Process - 2023 May 29, 2024 ML24145A001

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.

2

Agenda - Seabrook

  • 2023 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

Eben Allen Resident Inspector Travis Daun Sr. Resident Inspector Nik Floyd Senior Engineer Matt Young Branch Chief NRC Panelists 4

Joe DeBoer Sr. Emergency Preparedness Inspector

2023 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 2024 5

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 6

NRC Independent Safety Inspections Reactor Oversight Process 7

2023 NRC Inspection Activities at Seabrook

~6700 hours of inspection and related activities

- Examples of Resident Inspections maintenance activities surveillance tests operator performance emergency preparedness drills Refueling outage activities

- 2023 Team and Specialist Inspections Security Baseline and Force-on-Force Exercise Cyber Security Team Inspection Fire Protection Team Inspection Health Physics and Radiation Safety 8

NRC Inspection of ASR at Seabrook 9

In 2023, 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 2023 determined Seabrook structures remain capable of performing their safety functions NRC inspectors identified no findings related to ASR in 2023

Seabrook Annual Assessment Meeting Closing Remarks 10

NRC Social Media Channels 11 Facebook www.facebook.com/nrcgov/

Twitter twitter.com/nrcgov Instagram https://www.instagram.com/nrcgov YouTube www.youtube.com/user/NRCgov Flickr www.flickr.com/photos/nrcgov/

LinkedIn www.linkedin.com/company/u-s--nuclear-regulatory-commission/

RSS www.nrc.gov/public-involve/listserver.html#rss

Annual Assessment Meeting Feedback

1. Mail in NRC feedback form

- OR -

2. Scan QR Code on back of form with smart device

- OR -

3. On any computer visit the NRC Public Meeting Schedule Click Meeting Feedback or Click more on the Meeting Details page Meeting number: 20240628 12

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