MN 16-005, 6/21/2016 - Seabrook Station Annual Assessment Meeting - NRC Presentation Slides (Assessment and ASR Update)

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6/21/2016 - Seabrook Station Annual Assessment Meeting - NRC Presentation Slides (Assessment and ASR Update)
ML16176A054
Person / Time
Site: Seabrook 
Issue date: 06/21/2016
From:
NRC Region 1
To:
Bower F
References
MN 16-005
Download: ML16176A054 (10)
v • d • e


Text

1 Seabrook Public Meeting - ASR Update Nuclear Regulatory Commission - Region I Hampton, NH June 21, 2016 ML16174A054

2 NRC Staff

3 AGENDA

  • 2015 Safety Performance Overview
  • ASR Inspections
  • ASR License Amendment Request
  • Question and Answer Session
  • Closing Remarks

4 Seabrook 2015 Assessment Summary

  • Operated safely and in a manner that preserved the public health and safety and protected the environment
  • Licensee Response Column
  • 5,470 hours0.00544 days <br />0.131 hours <br />7.771164e-4 weeks <br />1.78835e-4 months <br /> of inspection and related activities.
  • All Green Performance Indicators
  • 2 Green Findings

5 NRC Inspections of Seabrook Structures Affected by ASR

  • NRC specialist inspections completed every six months
  • NRC issued a violation in 2016 for not evaluating ASR effects of bulk deformation in Containment Enclosure Building and Underground Equipment Vault Wall Cracks
  • Violation of very low safety significance because structural capability was maintained
  • Written response required due to repetitiveness
  • NRC will complete inspection to assess effectiveness of actions to prevent recurrence

6 License Renewal Status Update Need reasonable assurance that ASR aging effects can be adequately managed License renewal safety review is ongoing; regulatory decision on the application has not been finalized Remaining schedule milestones, including 2nd ACRS Subcommittee meeting, are to be determined

7 License Renewal Status Update NextEra submitted latest ASR Monitoring Aging Management Program (AMP) on Dec 3, 2015 ASR continues to be an Open Item, primarily due to building deformation and macro-cracking manifestations Public meeting with NextEra at NRC HQ on April 28, 2016, discussed ASR open issues NextEra intends to submit a revised ASR Monitoring AMP in August 2016

8 ASR License Amendment Request Pre-application public meeting with NextEra held June 15, 2016.

NextEra stated it intends to submit an ASR license amendment request (LAR) in July 2016.

The LAR will request to revise Seabrooks design basis Texas test data is intended to demonstrate that American Concrete Institute code acceptance criteria are met (within limits)f or ASR-affected structures.

9 NRC License Amendment Process Submit License Amendment Request (LAR)

Acceptance Review Pre-application Meeting June 15, 2016 Publish Notice of Receipt of LAR in Federal Register

  • 30-Day Comment Period on No Significant Hazards Consideration
  • 60-Day Period to Request a Hearing on the LAR Hearing Requests -

Follow 10 CFR Part 2 Licensee Supplement in Response to RAI Request for Additional Information (RAI)

Complete Review of LAR State Consultation Issue Decision on LAR

NRC Social Media Channels

  • Web:

http://www.nrc.gov/

  • Blog:

http://public-blog.nrc-gateway.gov/

  • Flickr:

http://www.flickr.com/photos/nrcgov/

  • Twitter:

https://twitter.com/#!/nrcgov

  • Questions?

10

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