River Bend Station (RBS) License Renewal Application (LRA)

NRC Presentation

May 25, 2017

Agenda

• Introductions

• Overview of LRA

• Site Information

• Lessons Learned

1

Introductions

2

Introductions

• Bill Maguire – Site Vice President • Steve Vercelli – General Manager Plant Operations (Management

Sponsor for the Project) • Marvin Chase – Director – Regulatory Assurance and Performance • Garry Young – Director – License Renewal Services • Mark Runion – Sr. Manager – Site Projects & Maintenance Services • Tim Schenk – Manager – Regulatory Assurance • Jeff Sowa – NRC Sr. Resident Inspector • Thomas Broussard – RBS LR Project Manager • Danny Williamson – RBS LR Project Regulatory Assurance Lead • Dave Lach – Project Manager – License Renewal Services • Rick Buckley – License Renewal Services ER Lead

3

Overview of LRA

4

Overview of LRA

GENERAL

• The LRA is a summary of an integrated plant assessment (IPA), time-limited aging analyses (TLAA) evaluations, and an environmental review

• Format based on NEI 95-10; Reg. Guide 1.188; NUREG-1800 (Standard Review Plan or SRP) – safety portion; and Reg. Guide 4.2 & NUREG-1437 – environmental review

• Aging management review results compared to NUREG-1801 (Generic Aging Lessons Learned or GALL Report) + 6 interim staff guidance (ISG) documents on LR

5

Overview of LRA

LRA Main Sections 1.0 Administrative Information

2.0 Scoping and Screening Methodology for Identifying Structures and Components Subject to Aging Management Review and Implementation Results

3.0 Aging Management Review Results

4.0 Time-Limited Aging Analyses

Appendix A – Updated Safety Analysis Report Supplement

Appendix B – Aging Management Programs and Activities

Appendix C – Response to BWRVIP Action Items

Appendix D – Technical Specification Changes – None

Appendix E – Environmental Report (with Att. D SAMA Results)

6

Overview of LRA

Aging Management Program (AMP) Breakdown

• 43 AMPS: 32 existing programs/11 new programs

• 24 programs – consistent with GALL

• 5 programs take exception to GALL*

• 17 programs have enhancements to meet GALL*

• 1 program is plant specific

* 4 programs contain enhancements & exceptions

• LRA contains 29 commitments in Appendix A

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Overview of LRA

Time-Limited Aging Analyses • Reactor Vessel Neutron Embrittlement

• Metal Fatigue

• Environmental Qualification (EQ) Analyses of Electric Equipment

• Concrete Containment Tendon Pre-stress

• Containment Liner Plate, Metal Containments, and Penetrations Fatigue Analysis

• Other Plant-Specific TLAAs

• Erosion of Main Steam Line Flow Restrictors

• Postulation of HELB Locations

• Fluence effects for Reactor Vessel Internals

• Crane Load Cycle Analysis

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Site Information

9

Site Information

• Located along the Mississippi River southeast of St. Francisville, LA

• General Electric (NSSS) – Stone and Webster (constructor)

• BWR-6, Mark III containment

• General Electric turbine generator

• Closed circulating water system with mechanical draft cooling towers

• Original licensed thermal power – 2894 MWt

• Current licensed thermal power – 3091 MWt (after uprates in 1999 & 2003)

• Staff complement: approximately 680

10

Site Information

Major Plant Modifications/Improvements

• Digital EHC upgrade

• Circulating water pipe coating

• Recirculation pump seal upgrades

• Instrument air system (IAS) dryers

• RWCU piping replacement (to address FAC)

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Site Information

Risk Significant Systems/Components* • Standby service water • 230kV offsite power • Residual heat removal systems • Primary containment HVAC • Main control room HVAC • Safety-related 4160kV power • Reactor protection system • Emergency diesel generator cooling • Normal service water • Safety-related 480V power

* From PRA, Rev 5, System Risk Ranking

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Lessons Learned

13

Lessons Learned

General

• Lessons learned from previous Entergy and other industry license renewal projects utilized in the RBS LRA

• During LRA preparation, Entergy LR team incorporated experience gained from on-going participation in NEI, NRC, and other industry license renewal activities

• Entergy LR team incorporated experience gained from participation in peer reviews of other recent LRAs into the RBS LRA (e.g., Fermi 2; WF3)

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Lessons Learned

Procedural & Logistical Lessons Learned

• Entergy will use the Certrec document portal to make license renewal documentation and information available to the NRC electronically with remote access capability

• Frequent coordination calls between site and corporate project teams- – Bi-weekly status calls pre-LRA submittal

– Weekly status calls post-LRA submittal

– Additional calls conducted as needed

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Lessons Learned

Procedural & Logistical Lessons Learned

• Audit Support – Entergy procedure provides guidance on preparation for NRC

audits/inspections based on previous LR projects

– Entergy conducts refresher training for site program owners and other personnel supporting the audits/inspections

– Entergy will use a database to track and respond to NRC questions and requests during audits/inspections

– During audits/inspections, detailed schedules updated daily are used to track NRC requests for breakout sessions, walk downs, and information

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Lessons Learned

Procedural & Logistical Lessons Learned

• RAI Content and Logistics • RAI responses will be developed using Entergy procedures

• Initial draft responses typically prepared by experienced LR team members, then sent to the site SMEs and Regulatory Assurance for final approval and concurrence

• RAI response progress is tracked at all stages of development: including receipt to draft preparation, final review to certification, and then submittal to NRC - to help ensure timely responses

17

Conclusion

18

Conclusion

• RBS LRA planned to be submitted to the NRC by 5/30/2017

• Format based on NEI 95-10; Reg. Guide 1.188; NUREG-1800 (Standard Review Plan or SRP) – safety portion; and Reg. Guide 4.2 & NUREG-1437 – environmental review

• LRA submittal begins a 22 – 30 month period of reviews, audits/inspections, RAI responses and other NRC interface activities

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