ML19364A157
| ML19364A157 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 01/08/2020 |
| From: | Cayetano Santos NRC/NRR/VPOB |
| To: | Victor Hall NRC/NRR/VPOB |
| References | |
| LAR-19-009 | |
| Download: ML19364A157 (9) | |
Text
MEMORANDUM TO:
Victor E. Hall, Chief Vogtle Project Office Office of Nuclear Reactor Regulation FROM:
Cayetano Santos, Senior Project Manager /RA/
Vogtle Project Office Office of Nuclear Reactor Regulation
SUBJECT:
AUDIT PLAN FOR VOGTLE ELECTRIC GENERATING PLANT UNITS 3 AND 4, REQUEST FOR LICENSE AMENDMENT AND EXEMPTION: AUTOMATIC DEPRESSURIZATION SYSTEM (ADS) AND CORE MAKEUP TANK (CMT) DESIGN PARAMETERS (LAR-19-009)
By letter dated September 30, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML19273A953), as supplemented by letter dated December 19, 2019 (ADAMS Accession No. ML19353B752), Southern Nuclear Operating Company (the licensee) requested an amendment to Combined License (COL) Numbers NPF-91 and NPF-92, for Vogtle Electric Generating Plant (VEGP) Units 3 and 4.
The requested amendment proposes to depart from Updated Final Safety Analysis Report (UFSAR) Tier 2 information (which includes the plant-specific Design Control Document (DCD) Tier 2 information), involves related changes to plant-specific Tier 1 information, with corresponding changes to the associated COL Appendix C information, and involves related changes to COL Appendix A, Technical Specifications. Pursuant to the provisions of 10 CFR 52.63(b)(1), an exemption from elements of the design as certified in the 10 CFR Part 52, Appendix D, design certification rule is also requested for the plant-specific DCD Tier 1 material departures.
The requested amendment proposes changes to reflect revisions in the design parameters of: a) the maximum stroke times for the automatic depressurization system (ADS) Stages 1, 2, and 3 valves; b) the minimum effective flow areas for the ADS Stages 2 and 3 valves; and c) the core makeup tank (CMT) minimum volume. These changes were previously discussed with the NRC staff at a public technical exchange meeting (ADAMS Accession No. ML19142A367) on May 23, 2019, and at a public pre-submittal meeting (ADAMS Accession No. ML19240B902) on August 29, 2019.
CONTACT: Cayetano Santos, NRR/VPO 301-415-7270 January 8, 2020
The Nuclear Methods, Systems, and New Reactors Branch (DSS/SNRB), PRA Licensing Branch C (DRA/APLC), and Technical Specifications Branch (DSS/STSB) staff plan to conduct an audit to gain a better understanding of the proposed changes and to review related documentation and non-docketed information in order to evaluate conformance with the Standard Review Plan or technical guidance.
Docket Nos.: 52-025 and 52-026
Enclosure:
Regulatory Audit Plan cc: See next page
ML19364A157 *via e-mail NRO-008 OFFICE NRR/VPO/PM NRR/VPO/LA NRR/VPO/BC NRR/VPO/PM NAME CSantos*
RButler VHall CSantos DATE 1/2/20 (c) 12/30/19 1/6/20 1/8/20 (s)
Vogtle Mailing List (Revised 11/12/2019) cc:
Resident Manager Resident Inspector Oglethorpe Power Corporation Vogtle Plant Units 3 & 4 Alvin W. Vogtle Nuclear Plant 8805 River Road 7821 River Road Waynesboro, GA 30830 Waynesboro, GA 30830 Mr. Barty Simonton Office of the Attorney General Team Leader 40 Capitol Square, SW Environmental Radiation Program Atlanta, GA 30334 Air Protection Branch Environmental Protection Division Southern Nuclear Operating Company 4244 International Parkway, Suite 120 Document Control Coordinator Atlanta, GA 30354-3906 3535 Colonnade Parkway Birmingham, AL 35243 Brian H. Whitley Regulatory Affairs Director Anne F. Appleby Southern Nuclear Operating Company Olgethorpe Power Corporation 3535 Colonnade Parkway, BIN N-226-EC 2100 East Exchange Place Birmingham, AL 35243 Tucker, GA 30084 Mr. Michael Yox County Commissioner Site Regulatory Affairs Director Office of the County Commissioner Vogtle Units 3 & 4 Burke County Commission 7825 River Road, Building 302 (ESB)
Waynesboro, GA 30830 Bin 6031 Waynesboro, GA 30830 Mr. Wayne Guilfoyle Commissioner District 8 Augusta-Richmond County Commission 4940 Windsor Spring Rd Hephzibah, GA 30815 Gwendolyn Jackson Burke County Library 130 Highway 24 South Waynesboro, GA 30830 Mr. Reece McAlister Executive Secretary Georgia Public Service Commission Atlanta, GA 30334 Page 1 of 3
Vogtle Mailing List Email aagibson@southernco.com (Amanda Gibson) acchambe@southernco.com (Amy Chamberlian) awc@nei.org (Anne W. Cottingham) becky@georgiawand.org (Becky Rafter) bhwhitley@southernco.com (Brian Whitley)
Bill.Jacobs@gdsassociates.com (Bill Jacobs) corletmm@westinghouse.com (Michael M. Corletti) crpierce@southernco.com (C.R. Pierce) dahjones@southernco.com (David Jones) david.hinds@ge.com (David Hinds) david.lewis@pillsburylaw.com (David Lewis) dlfulton@southernco.com (Dale Fulton) ed.burns@earthlink.net (Ed Burns) edavis@pegasusgroup.us (Ed David)
G2NDRMDC@southernco.com (SNC Document Control)
George.Taylor@opc.com (George Taylor) harperzs@westinghouse.com (Zachary S. Harper) james1.beard@ge.com (James Beard)
JHaswell@southernco.com (Jeremiah Haswell) jim@ncwarn.org (Jim Warren)
John.Bozga@nrc.gov (John Bozga)
Joseph_Hegner@dom.com (Joseph Hegner) karlg@att.net (Karl Gross) kmstacy@southernco.com (Kara Stacy) kroberts@southernco.com (Kelli Roberts)
KSutton@morganlewis.com (Kathryn M. Sutton) kwaugh@impact-net.org (Kenneth O. Waugh) markus.popa@hq.doe.gov (Markus Popa) mdmeier@southernco.com (Mike Meier) media@nei.org (Scott Peterson)
Melissa.Smith@Hq.Doe.Gov (Melissa Smith) mike.price@opc.com (M.W. Price)
MKWASHIN@southernco.com (MKWashington) mphumphr@southernco.com (Mark Humphrey)
MSF@nei.org (Marvin Fertel) nirsnet@nirs.org (Michael Mariotte)
Nuclaw@mindspring.com (Robert Temple)
Paul@beyondnuclear.org (Paul Gunter) pbessette@morganlewis.com (Paul Bessette) ppsena@southernco.com (Peter Sena,III) r.joshi15@comcast.net (Ravi Joshi) rwink@ameren.com (Roger Wink) sabinski@suddenlink.net (Steve A. Bennett) sara@cleanenergy.org (Sara Barczak)
Page 2 of 3
Vogtle Mailing List sblanton@balch.com (Stanford Blanton)
Shiva.Granmayeh@hq.doe.gov (Shiva Granmayeh) sjackson@meagpower.org (Steven Jackson) sjones@psc.state.ga.us (Shemetha Jones) skauffman@mpr.com (Storm Kauffman) slieghty@southernco.com (Steve Leighty) sroetger@psc.state.ga.us (Steve Roetger) syagee@southernco.com (Stephanie Agee)
TomClements329@cs.com (Tom Clements)
Vanessa.quinn@dhs.gov (Vanessa Quinn) wayne.marquino@gmail.com (Wayne Marquino) weave1dw@westinghouse.com (Doug Weaver)
William.Birge@hq.doe.gov (William Birge)
X2edgran@southernco.com (Eddie R. Grant) x2gabeck@southernco.com (Gary Becker)
X2hagge@southern.com (Neil Haggerty)
X2wwill@southernco.com (Daniel Williamson)
Page 3 of 3
2 AUDIT OF REPORTS AND CALCULATIONS IN SUPPORT OF A REQUEST FOR A LICENSE AMENDMENT RELATED TO CHANGES IN DESIGN PARAMETERS FOR AUTOMATIC DEPRESSURIZATION SYSTEM (ADS) AND CORE MAKEUP TANK (CMT) (LAR-19-009)
SOUTHERN NUCLEAR OPERATING COMPANY VOGTLE ELECTRIC GENERATING PLANT, UNITS 3 AND 4 DOCKET NOS.52-025 AND 52-026 The purpose of the audit is to review the documentation and calculations needed by the U.S Nuclear Regulatory Commission (NRC) staff to verify the information and conclusions in the Request for License Amendment and Exemption: Automatic Depressurization System (ADS) and Core Makeup Tank (CMT) Design Parameters (LAR 19-009) submitted by Southern Nuclear Operating Company (SNC) for the Vogtle Electric Generating Plant (VEGP), Units 3 and 4 (Agencywide Documents Access and Management System (ADAMS) Accession Nos.
ML19273A953 and ML19353B752).
A.
Background:
The proposed changes would revise the licensing basis documents to reflect revised automatic depressurization system (ADS) and core makeup tank (CMT) design parameters. The requested amendment requires a departure from the Updated Final Safety Analysis Report (UFSAR) Tier 2 information that involves a change to the plant-specific Tier 1 (and associated COL Appendix C) information in Table 2.1.2-4 identifying a) the maximum stroke times for the ADS Stages 1, 2, and 3 valves, and b) the minimum effective flow areas for the ADS Stages 2 and 3 valves.
The requested amendment also requires a departure from the UFSAR Tier 2 information that involves a change to the COL Appendix A information in Technical Specification (TS) 3.5.2 and TS 3.5.3 identifying the required CMT minimum volume. Editorial changes are also provided for TS 3.5.3.
B.
Regulatory Audit Basis This regulatory audit is based on the following:
VEGP Units 3 and 4 Revision 8 to UFSAR, Revision 7 to Tier 1, Revision 51 to Technical Specifications Bases, June 14, 2019 (ADAMS Accession No. ML19171A093).
VEGP Units 3 and 4 UFSAR Tier 2, Chapter 14, Revision 8, March 21, 2019 (ADAMS Accession No. ML19171A073).
VEGP Units 3 and 4 UFSAR Tier 2, Chapter 15, Revision 8, March 21, 2019 (ADAMS Accession No. ML19171A074).
VEGP Units 3 and 4 UFSAR Tier 2, Chapter 19, Revision 8, March 21, 2019 (ADAMS Accession No. ML19171A078).
VEGP Units 3 and 4 Tier 1, Revision 7, March 21, 2019 (ADAMS Accession No. ML19171A045)
VEGP Units 3 and 4 Technical Specifications Bases, Revision 51 (ADAMS Accession No. ML19171A050)
3 C.
Regulatory Audit Scope and Methodology The audit team will view the documentation and calculations for full power and shutdown conditions that provide the technical support for LAR 19-009.
D.
Information and Other Material Necessary for the Regulatory Audit The staff requests that documents and calculations related to minimum CMT volume for the loss of normal residual heat removal system (RNS) analysis for shutdown modes be made available to the staff in the electronic reading room.
Other documents may be requested based on the staffs review of the above documents.
The staff acknowledges and will observe appropriate handling and protection of proprietary information made available for the audit.
E.
Audit Team The following are the NRC audit team members:
Ryan Nolan, Nuclear Engineer, Lead Marie Pohida, Senior Reliability and Risk Analyst (shutdown operations)
Caroline Tilton, Safety and Plant Systems Engineer Alina Schiller, Project Manager The following are the licensee contacts:
Eddie Grant Amy Chamberlain F.
Logistics Date: January 7, 2020 - January 23, 2020 Location: Westinghouse Electric Company, LLC Washington Operations 11333 Woodglen Drive, Suite 203 Rockville, Maryland 20852 Telephone: 301-881-7040/7042 Additionally, the review of documents supporting LAR 19-009, and identified in Section D of this audit plan, can be conducted at NRC Headquarters via the licensees electronic reading room.
Location: NRC Headquarters One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738
4 G. Special Requests If necessary, the staff requests that subject matter expert(s) be made available to discuss the documentation and calculations for full power and shutdown conditions that provide the technical support for LAR 19-009.
Alina Schiller (NRC), NRC Project Manager, can be reached at 301-415-8177 or Alina.Schiller@nrc.gov.
H.
Deliverables On completion of the audit, the staff will prepare an audit summary report within 45 days that will be declared and entered as an official agency record in ADAMS. The audit outcome may be used to identify any additional information to be submitted for making regulatory decisions and will assist the staff in the issuance of requests for additional information (if necessary) in completing its review of LAR 19-009.