ML16176A054

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)

Text

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

NRC Staff

• Raymond Lorson, Director, DRS

• Fred Bower, DRP Branch Chief

• Mel Gray, DRS Branch Chief

• Doug Broaddus, NRR Branch Chief

• Brian Wittick, NRR Branch Chief

• Angela Buford, Structural Engineer, NRR

• Bill Cook, Sr. Reactor Analyst

• Paul Cataldo, Sr. Resident Inspector 2

AGENDA

• 2015 Safety Performance Overview

• ASR Inspections

• ASR and License Renewal Status

• ASR License Amendment Request

• Question and Answer Session

• Closing Remarks 3

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 4

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 5

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 6

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 7

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.

8

NRC License Amendment Process Submit License Acceptance Review Request for Additional Amendment Request (LAR)

Information (RAI)

Publish Notice of Receipt of LAR in Federal Register Licensee Supplement in Pre-application Meeting *30-Day Comment Period on No Response to RAI June 15, 2016 Significant Hazards Consideration

• 60-Day Period to Request a Hearing Complete Review of LAR on the LAR State Consultation Hearing Requests -

Follow 10 CFR Part 2 Issue Decision on LAR 9

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

• YouTube: http://www.youtube.com/user/NRCgov

• Questions?

10