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=Text=
=Text=
{{#Wiki_filter:October 11, 2019 MEMORANDUM TO:               Jennifer L. Dixon-Herrity, Chief Licensing Branch 2 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors FROM:                         Jennivine Rankin, Project Manager           /RA/
{{#Wiki_filter:October 11, 2019 MEMORANDUM TO:
Licensing Branch 2 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors
Jennifer L. Dixon-Herrity, Chief Licensing Branch 2 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors FROM:
Jennivine Rankin, Project Manager  
/RA/
Licensing Branch 2 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors  


==SUBJECT:==
==SUBJECT:==
AUDIT REPORT FOR VOGTLE ELECTRIC GENERATING PLANT UNIT 4, REQUEST FOR LICENSE AMENDMENT:
AUDIT REPORT FOR VOGTLE ELECTRIC GENERATING PLANT UNIT 4, REQUEST FOR LICENSE AMENDMENT:
REINFORCEMENT CHANGES FOR WALL L AND WALL 7.3 (LAR-19-016)
REINFORCEMENT CHANGES FOR WALL L AND WALL 7.3 (LAR-19-016)
By letter dated August 22, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML19234A327), Southern Nuclear Operating Company (the licensee) requested an amendment to Combined License (COL) Number NPF-92, for Vogtle Electric Generating Plant (VEGP) Unit 4.
By {{letter dated|date=August 22, 2019|text=letter dated August 22, 2019}} (Agencywide Documents Access and Management System (ADAMS) Accession Number ML19234A327), Southern Nuclear Operating Company (the licensee) requested an amendment to Combined License (COL) Number NPF-92, for Vogtle Electric Generating Plant (VEGP) Unit 4.
The amendment proposes to depart from AP1000 Design Control Document (DCD) Tier 2*
The amendment proposes to depart from AP1000 Design Control Document (DCD) Tier 2*
material that has been incorporated into the Updated Final Safety Analysis Report (UFSAR).
material that has been incorporated into the Updated Final Safety Analysis Report (UFSAR).
Line 30: Line 33:
CONTACT: Jennivine Rankin, NRO/DLSE/LB2 301-415-1530
CONTACT: Jennivine Rankin, NRO/DLSE/LB2 301-415-1530


J. Dixon-Herrity                           2 The Structural Engineering Branch (NRO/SEB) staff conducted an audit from September 9 -
J. Dixon-Herrity 2
The Structural Engineering Branch (NRO/SEB) staff conducted an audit from September 9 -
October 7, 2019, via the Westinghouse Electric Companys electronic reading room. The purpose of the audit was to gain a better understanding of the licensees proposed changes by examining relevant documented evidence that supports reaching a conclusion of reasonable assurance, and reviewing related documentation and non-docketed information to compliance with applicable regulations.
October 7, 2019, via the Westinghouse Electric Companys electronic reading room. The purpose of the audit was to gain a better understanding of the licensees proposed changes by examining relevant documented evidence that supports reaching a conclusion of reasonable assurance, and reviewing related documentation and non-docketed information to compliance with applicable regulations.
Docket No.: 52-026
Docket No.: 52-026  


==Enclosure:==
==Enclosure:==
Regulatory Audit Report cc: See next page


Regulatory Audit Report cc: See next page
ML19280D872
*via email NRO-008 OFFICE DLSE/LB2/PM DLSE/LB2/LA DESR/SEB/BC DLSE/LB2/BC NAME JRankin RButler SSamaddar JDixon-Herrity DATE 10/8/19 10/8/19 10/8/19 10/11/19


ML19280D872              *via email                    NRO-008 OFFICE DLSE/LB2/PM            DLSE/LB2/LA            DESR/SEB/BC      DLSE/LB2/BC NAME      JRankin            RButler                SSamaddar        JDixon-Herrity DATE      10/8/19            10/8/19                10/8/19          10/11/19
Vogtle Units 3 & 4 Mailing List (Revised 08/16/2018) cc:
 
Office of the Attorney General Resident Inspector 40 Capitol Square, SW Vogtle Plant Units 3 & 4 Atlanta, GA 30334 8805 River Road Waynesboro, GA 30830 Resident Manager Oglethorpe Power Corporation Mr. Barty Simonton Alvin W. Vogtle Nuclear Plant Team Leader 7821 River Road Environmental Radiation Program Waynesboro, GA 30830 Air Protection Branch Environmental Protection Division Southern Nuclear Operating Company, Inc.
Vogtle Units 3 & 4 Mailing List                                   (Revised 08/16/2018) cc:
4244 International Parkway, Suite 120 Document Control Coordinator Bin N-226-EC Atlanta, GA 30354-3906 3535 Colonnade Parkway Birmingham, AL 35243 George B. Taylor, Jr.
Office of the Attorney General           Resident Inspector 40 Capitol Square, SW                     Vogtle Plant Units 3 & 4 Atlanta, GA 30334                         8805 River Road Waynesboro, GA 30830 Resident Manager Oglethorpe Power Corporation             Mr. Barty Simonton Alvin W. Vogtle Nuclear Plant             Team Leader 7821 River Road                           Environmental Radiation Program Waynesboro, GA 30830                     Air Protection Branch Environmental Protection Division Southern Nuclear Operating Company, Inc. 4244 International Parkway, Suite 120 Document Control Coordinator Bin N-226-EC Atlanta, GA 30354-3906 3535 Colonnade Parkway Birmingham, AL 35243                     George B. Taylor, Jr.
2100 East Exchange Pl Anne F. Appleby Atlanta, GA 30084-5336 Olgethorpe Power Corporation 2100 East Exchange Place Brian H. Whitley Tucker, GA 30084 3535 Colonnade Parkway, Bin N-226-EC 42 Inverness Center Parkway, BIN B237 County Commissioner Birmingham, AL 35243 Office of the County Commissioner Burke County Commission Mr. Michael Yox Waynesboro, GA 30830 Site Regulatory Affairs Director Vogtle Units 3 & 4 Mr. Wayne Guilfoyle 7825 River Road, Bin 63031 Commissioner District 8 Waynesboro, GA 30830 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  
2100 East Exchange Pl Anne F. Appleby                           Atlanta, GA 30084-5336 Olgethorpe Power Corporation 2100 East Exchange Place                 Brian H. Whitley Tucker, GA 30084                         3535 Colonnade Parkway, Bin N-226-EC 42 Inverness Center Parkway, BIN B237 County Commissioner                       Birmingham, AL 35243 Office of the County Commissioner Burke County Commission                   Mr. Michael Yox Waynesboro, GA 30830                     Site Regulatory Affairs Director Vogtle Units 3 & 4 Mr. Wayne Guilfoyle                       7825 River Road, Bin 63031 Commissioner District 8                   Waynesboro, GA 30830 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 Units 3 & 4 Mailing List Email acchambe@southernco.com (Amy Chamberlian) agaughtm@southernco.com (Amy Aughtman)
Vogtle Units 3 & 4 Mailing List Email acchambe@southernco.com (Amy Chamberlian) agaughtm@southernco.com (Amy Aughtman)
Line 52: Line 57:
Joseph_Hegner@dom.com (Joseph Hegner) jpredd@southernco.com (Jason R. Redd) jranalli@meagpower.org (Jerry Ranalli) karen.patterson@ttnus.com (Karen Patterson) karlg@att.net (Karl Gross) kmstacy@southernco.com (Kara Stacy)
Joseph_Hegner@dom.com (Joseph Hegner) jpredd@southernco.com (Jason R. Redd) jranalli@meagpower.org (Jerry Ranalli) karen.patterson@ttnus.com (Karen Patterson) karlg@att.net (Karl Gross) kmstacy@southernco.com (Kara Stacy)
KSutton@morganlewis.com (Kathryn M. Sutton) kwaugh@impact-net.org (Kenneth O. Waugh) markus.popa@hq.doe.gov (Markus Popa)
KSutton@morganlewis.com (Kathryn M. Sutton) kwaugh@impact-net.org (Kenneth O. Waugh) markus.popa@hq.doe.gov (Markus Popa)
Page 2 of 3
Page 2 of 3  


Vogtle Units 3 & 4 Mailing List Matthew.Williams@hq.doe.gov (Matthew Williams) mdmeier@southernco.com (Mike Meier) media@nei.org (Scott Peterson)
Vogtle Units 3 & 4 Mailing List Matthew.Williams@hq.doe.gov (Matthew Williams) mdmeier@southernco.com (Mike Meier) media@nei.org (Scott Peterson)
Line 66: Line 71:
TomClements329@cs.com (Tom Clements)
TomClements329@cs.com (Tom Clements)
Vanessa.quinn@dhs.gov (Vanessa Quinn) vcsummer2n3@gmail.com (Brian McIntyre) wasparkm@southernco.com (Wesley A. Sparkman) wayne.marquino@gmail.com (Wayne Marquino) weave1dw@westinghouse.com (Doug Weaver) x2gabeck@southernco.com (Gary Becker) x2kmseib@southernco.com (Kristin Seibert)
Vanessa.quinn@dhs.gov (Vanessa Quinn) vcsummer2n3@gmail.com (Brian McIntyre) wasparkm@southernco.com (Wesley A. Sparkman) wayne.marquino@gmail.com (Wayne Marquino) weave1dw@westinghouse.com (Doug Weaver) x2gabeck@southernco.com (Gary Becker) x2kmseib@southernco.com (Kristin Seibert)
Page 3 of 3
Page 3 of 3  
 
4 Report of Regulatory Audit License Amendment Related to Reinforcement Changes for Wall L and Wall 7.3 Vogtle Electric Generating Plant, Unit 4 (LAR 19-016)
A.


Report of Regulatory Audit License Amendment Related to Reinforcement Changes for Wall L and Wall 7.3 Vogtle Electric Generating Plant, Unit 4 (LAR 19-016)
===Background===
A.      Background By letter dated August 22, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML19234A327), Southern Nuclear Operating Company (the licensee) requested an amendment to Combined License (COL) Number NPF-92, for Vogtle Electric Generating Plant (VEGP) Unit 4 (ADAMS Accession No. ML14100A135).
By {{letter dated|date=August 22, 2019|text=letter dated August 22, 2019}} (Agencywide Documents Access and Management System (ADAMS) Accession Number ML19234A327), Southern Nuclear Operating Company (the licensee) requested an amendment to Combined License (COL) Number NPF-92, for Vogtle Electric Generating Plant (VEGP) Unit 4 (ADAMS Accession No. ML14100A135).
In license amendment request (LAR) 19-016, SNC proposes to depart from AP1000 Design Control Document (DCD) Tier 2* material that has been incorporated into the Updated Final Safety Analysis Report (UFSAR). The proposed departure consists of changes to Tier 2* information in the UFSAR to change the provided area of horizontal reinforcement for VEGP Unit 4 Wall L and Wall 7.3 from elevation 117'-6" to 135'-3".
In license amendment request (LAR) 19-016, SNC proposes to depart from AP1000 Design Control Document (DCD) Tier 2* material that has been incorporated into the Updated Final Safety Analysis Report (UFSAR). The proposed departure consists of changes to Tier 2* information in the UFSAR to change the provided area of horizontal reinforcement for VEGP Unit 4 Wall L and Wall 7.3 from elevation 117'-6" to 135'-3".
The purpose of this audit is to gain a better understanding of the calculations associated with LAR 19-016.
The purpose of this audit is to gain a better understanding of the calculations associated with LAR 19-016.
B.     Bases This regulatory audit is based on the following:
B.
* VEGP Units 3 and 4 UFSAR Revision 8, Chapter 3, Design of Structures, Components, Equipment and Systems, Appendix 3H, Auxiliary and Shield Building Critical Sections (ADAMS Accession No. ML19171A061).
Bases This regulatory audit is based on the following:
VEGP Units 3 and 4 UFSAR Revision 8, Chapter 3, Design of Structures, Components, Equipment and Systems, Appendix 3H, Auxiliary and Shield Building Critical Sections (ADAMS Accession No. ML19171A061).
The audit plan is available in ADAMS under Accession No. ML19248C020.
The audit plan is available in ADAMS under Accession No. ML19248C020.
C.     Logistics Date: September 9, 2019 - October 7, 2019 Location: The audit was conducted through the Westinghouse Electric Companys electronic reading room.
C.
D.     Audit Team Members The following U.S. Nuclear Regulatory Commission (NRC) staff members participated in substantive discussions during the audit:
Logistics Date: September 9, 2019 - October 7, 2019 Location: The audit was conducted through the Westinghouse Electric Companys electronic reading room.
Pravin Patel, Structural Engineer, Technical Reviewer Jennivine Rankin, Project Manager E.     Applicant and Industry Staff Participants Stephanie Agee (SNC) 4
D.
Audit Team Members The following U.S. Nuclear Regulatory Commission (NRC) staff members participated in substantive discussions during the audit:
Pravin Patel, Structural Engineer, Technical Reviewer Jennivine Rankin, Project Manager E.
Applicant and Industry Staff Participants Stephanie Agee (SNC)  


F.     Documents Audited
5 F.
* SV4-CR01-GNR-000583, U4 Walls 7.3 & L (EL 117'-6" to 135'-3") Reinf. w/o a Splice (ESR 50026080 & 50026081), Revision 0.
Documents Audited SV4-CR01-GNR-000583, U4 Walls 7.3 & L (EL 117'-6" to 135'-3") Reinf. w/o a Splice (ESR 50026080 & 50026081), Revision 0.
G.     Description of Audit Activities and Summary of Observations The NRC staff examined documentation supporting LAR-19-016. Specifically, the staff examined the calculation associated with the non-conformance and deviation for Walls 7.3 and L to verify that the minimum reinforcement values presented in LAR-19-016 are reasonable.
G.
H.     Exit Briefing The staffs audit exit briefing was conducted on October 7, 2019. The staff indicated there were currently no additional information needed for the review.
Description of Audit Activities and Summary of Observations The NRC staff examined documentation supporting LAR-19-016. Specifically, the staff examined the calculation associated with the non-conformance and deviation for Walls 7.3 and L to verify that the minimum reinforcement values presented in LAR-19-016 are reasonable.
I.     Requests for Additional Information (RAI) Resulting from Audit No RAIs were issued as a result of this audit.
H.
J.     Open Items and Proposed Closure Paths There were no open items from the audit.
Exit Briefing The staffs audit exit briefing was conducted on October 7, 2019. The staff indicated there were currently no additional information needed for the review.
K.     Deviations from the Audit Plan The duration of the audit was extended from September 25, 2019 to October 7, 2019, in order to allow staff additional time to examine the document that was added to the electronic reading room.
I.
5}}
Requests for Additional Information (RAI) Resulting from Audit No RAIs were issued as a result of this audit.
J.
Open Items and Proposed Closure Paths There were no open items from the audit.
K.
Deviations from the Audit Plan The duration of the audit was extended from September 25, 2019 to October 7, 2019, in order to allow staff additional time to examine the document that was added to the electronic reading room.}}

Latest revision as of 01:49, 3 January 2025

Audit Report for Vogtle Electric Generating Plant Unit 4 - Request for License Amendment LAR-19-016
ML19280D872
Person / Time
Site: Vogtle 
(NPF-092)
Issue date: 10/11/2019
From: Jennivine Rankin
NRC/NRO/DLSE/LB2
To: Jennifer Dixon-Herrity
NRC/NRO/DLSE/LB2
Rankin J, NRO/DLSE/LB2
References
LAR-19-016
Download: ML19280D872 (8)


Text

October 11, 2019 MEMORANDUM TO:

Jennifer L. Dixon-Herrity, Chief Licensing Branch 2 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors FROM:

Jennivine Rankin, Project Manager

/RA/

Licensing Branch 2 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors

SUBJECT:

AUDIT REPORT FOR VOGTLE ELECTRIC GENERATING PLANT UNIT 4, REQUEST FOR LICENSE AMENDMENT:

REINFORCEMENT CHANGES FOR WALL L AND WALL 7.3 (LAR-19-016)

By letter dated August 22, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML19234A327), Southern Nuclear Operating Company (the licensee) requested an amendment to Combined License (COL) Number NPF-92, for Vogtle Electric Generating Plant (VEGP) Unit 4.

The amendment proposes to depart from AP1000 Design Control Document (DCD) Tier 2*

material that has been incorporated into the Updated Final Safety Analysis Report (UFSAR).

The proposed departure consists of changes to Tier 2* information in the UFSAR to change the provided area of horizontal reinforcement for VEGP Unit 4 Wall L and Wall 7.3 from elevation 117'-6" to 135'-3".

CONTACT: Jennivine Rankin, NRO/DLSE/LB2 301-415-1530

J. Dixon-Herrity 2

The Structural Engineering Branch (NRO/SEB) staff conducted an audit from September 9 -

October 7, 2019, via the Westinghouse Electric Companys electronic reading room. The purpose of the audit was to gain a better understanding of the licensees proposed changes by examining relevant documented evidence that supports reaching a conclusion of reasonable assurance, and reviewing related documentation and non-docketed information to compliance with applicable regulations.

Docket No.: 52-026

Enclosure:

Regulatory Audit Report cc: See next page

ML19280D872

  • via email NRO-008 OFFICE DLSE/LB2/PM DLSE/LB2/LA DESR/SEB/BC DLSE/LB2/BC NAME JRankin RButler SSamaddar JDixon-Herrity DATE 10/8/19 10/8/19 10/8/19 10/11/19

Vogtle Units 3 & 4 Mailing List (Revised 08/16/2018) cc:

Office of the Attorney General Resident Inspector 40 Capitol Square, SW Vogtle Plant Units 3 & 4 Atlanta, GA 30334 8805 River Road Waynesboro, GA 30830 Resident Manager Oglethorpe Power Corporation Mr. Barty Simonton Alvin W. Vogtle Nuclear Plant Team Leader 7821 River Road Environmental Radiation Program Waynesboro, GA 30830 Air Protection Branch Environmental Protection Division Southern Nuclear Operating Company, Inc.

4244 International Parkway, Suite 120 Document Control Coordinator Bin N-226-EC Atlanta, GA 30354-3906 3535 Colonnade Parkway Birmingham, AL 35243 George B. Taylor, Jr.

2100 East Exchange Pl Anne F. Appleby Atlanta, GA 30084-5336 Olgethorpe Power Corporation 2100 East Exchange Place Brian H. Whitley Tucker, GA 30084 3535 Colonnade Parkway, Bin N-226-EC 42 Inverness Center Parkway, BIN B237 County Commissioner Birmingham, AL 35243 Office of the County Commissioner Burke County Commission Mr. Michael Yox Waynesboro, GA 30830 Site Regulatory Affairs Director Vogtle Units 3 & 4 Mr. Wayne Guilfoyle 7825 River Road, Bin 63031 Commissioner District 8 Waynesboro, GA 30830 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 Units 3 & 4 Mailing List Email acchambe@southernco.com (Amy Chamberlian) agaughtm@southernco.com (Amy Aughtman)

ALPUGH@southernco.com (Amanda Pugh) awc@nei.org (Anne W. Cottingham) becky@georgiawand.org (Becky Rafter) bhwhitley@southernco.com (Brian Whitley)

Bill.Jacobs@gdsassociates.com (Bill Jacobs) bjadams@southernco.com (Brad Adams) bwwaites@southernco.com (Brandon Waites) castelca@westinghouse.com (Curtis Castell) comerj@westinghouse.com (James Comer) crpierce@southernco.com (C.R. Pierce) dahjones@southernco.com (David Jones) david.hinds@ge.com (David Hinds) david.lewis@pillsburylaw.com (David Lewis) dgbost@southernco.com (Danny Bost) dlfulton@southernco.com (Dale Fulton) drculver@southernco.com (Randy Culver) durhamdc@westinghouse.com (David Durham) ed.burns@earthlink.net (Ed Burns) edavis@pegasusgroup.us (Ed David) erg-xl@cox.net (Eddie R. Grant) fdhundle@southernco.com (Forrest Hundley) fhwillis@southernco.com (Fred Willis)

G2NDRMDC@southernco.com (SNC Document Control) graysw@westinghouse.com (Scott W. Gray) jadwilli@southernco.com (J.D. Williams) james1.beard@ge.com (James Beard) jannina.blanco@pillsburylaw.com (Jannina Blanco) jantol1dj@westinghouse.com (David Jantosik) jenmorri@southernco.com (Jennifer Buettner)

JHaswell@southernco.com (Jeremiah Haswell) jim@ncwarn.org (Jim Warren)

John.Bozga@nrc.gov (John Bozga)

Joseph_Hegner@dom.com (Joseph Hegner) jpredd@southernco.com (Jason R. Redd) jranalli@meagpower.org (Jerry Ranalli) karen.patterson@ttnus.com (Karen Patterson) karlg@att.net (Karl Gross) kmstacy@southernco.com (Kara Stacy)

KSutton@morganlewis.com (Kathryn M. Sutton) kwaugh@impact-net.org (Kenneth O. Waugh) markus.popa@hq.doe.gov (Markus Popa)

Page 2 of 3

Vogtle Units 3 & 4 Mailing List Matthew.Williams@hq.doe.gov (Matthew Williams) mdmeier@southernco.com (Mike Meier) media@nei.org (Scott Peterson)

Melissa.Smith@Hq.Doe.Gov (Melissa Smith)

Michael.Kuca@hq.doe.gov (Michael Kuca) mike.price@opc.com (M.W. Price)

MKWASHIN@southernco.com (MKWashington) mlgraves@southernco.com (Michelle Graves)

MSF@nei.org (Marvin Fertel) myox@southernco.com (Mike Yox) nirsnet@nirs.org (Michael Mariotte)

Nuclaw@mindspring.com (Robert Temple) patriciaL.campbell@ge.com (Patricia L. Campbell)

Paul@beyondnuclear.org (Paul Gunter) pbessette@morganlewis.com (Paul Bessette) r.joshi15@comcast.net (Ravi Joshi)

RJB@NEI.org (Russell Bell)

Ronald.Jones@scana.com (Ronald Jones) rwink@ameren.com (Roger Wink) sabinski@suddenlink.net (Steve A. Bennett) sara@cleanenergy.org (Sara Barczak) sblanton@balch.com (Stanford Blanton)

Shiva.Granmayeh@hq.doe.gov (Shiva Granmayeh) sjackson@meagpower.org (Steven Jackson) skauffman@mpr.com (Storm Kauffman) sroetger@psc.state.ga.us (Steve Roetger) stephan.moen@ge.com (Stephan Moen) stephen.burdick@morganlewis.com (Stephen Burdick) tom.miller@hq.doe.gov (Tom Miller)

TomClements329@cs.com (Tom Clements)

Vanessa.quinn@dhs.gov (Vanessa Quinn) vcsummer2n3@gmail.com (Brian McIntyre) wasparkm@southernco.com (Wesley A. Sparkman) wayne.marquino@gmail.com (Wayne Marquino) weave1dw@westinghouse.com (Doug Weaver) x2gabeck@southernco.com (Gary Becker) x2kmseib@southernco.com (Kristin Seibert)

Page 3 of 3

4 Report of Regulatory Audit License Amendment Related to Reinforcement Changes for Wall L and Wall 7.3 Vogtle Electric Generating Plant, Unit 4 (LAR 19-016)

A.

Background

By letter dated August 22, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML19234A327), Southern Nuclear Operating Company (the licensee) requested an amendment to Combined License (COL) Number NPF-92, for Vogtle Electric Generating Plant (VEGP) Unit 4 (ADAMS Accession No. ML14100A135).

In license amendment request (LAR)19-016, SNC proposes to depart from AP1000 Design Control Document (DCD) Tier 2* material that has been incorporated into the Updated Final Safety Analysis Report (UFSAR). The proposed departure consists of changes to Tier 2* information in the UFSAR to change the provided area of horizontal reinforcement for VEGP Unit 4 Wall L and Wall 7.3 from elevation 117'-6" to 135'-3".

The purpose of this audit is to gain a better understanding of the calculations associated with LAR 19-016.

B.

Bases This regulatory audit is based on the following:

VEGP Units 3 and 4 UFSAR Revision 8, Chapter 3, Design of Structures, Components, Equipment and Systems, Appendix 3H, Auxiliary and Shield Building Critical Sections (ADAMS Accession No. ML19171A061).

The audit plan is available in ADAMS under Accession No. ML19248C020.

C.

Logistics Date: September 9, 2019 - October 7, 2019 Location: The audit was conducted through the Westinghouse Electric Companys electronic reading room.

D.

Audit Team Members The following U.S. Nuclear Regulatory Commission (NRC) staff members participated in substantive discussions during the audit:

Pravin Patel, Structural Engineer, Technical Reviewer Jennivine Rankin, Project Manager E.

Applicant and Industry Staff Participants Stephanie Agee (SNC)

5 F.

Documents Audited SV4-CR01-GNR-000583, U4 Walls 7.3 & L (EL 117'-6" to 135'-3") Reinf. w/o a Splice (ESR 50026080 & 50026081), Revision 0.

G.

Description of Audit Activities and Summary of Observations The NRC staff examined documentation supporting LAR-19-016. Specifically, the staff examined the calculation associated with the non-conformance and deviation for Walls 7.3 and L to verify that the minimum reinforcement values presented in LAR-19-016 are reasonable.

H.

Exit Briefing The staffs audit exit briefing was conducted on October 7, 2019. The staff indicated there were currently no additional information needed for the review.

I.

Requests for Additional Information (RAI) Resulting from Audit No RAIs were issued as a result of this audit.

J.

Open Items and Proposed Closure Paths There were no open items from the audit.

K.

Deviations from the Audit Plan The duration of the audit was extended from September 25, 2019 to October 7, 2019, in order to allow staff additional time to examine the document that was added to the electronic reading room.