ML20148M138
| ML20148M138 | |
| Person / Time | |
|---|---|
| Issue date: | 06/01/2020 |
| From: | Jennivine Rankin NRC/NRR/VPOB |
| To: | Victor Hall Office of Nuclear Reactor Regulation |
| Jennivine Rankin EX. 1530 | |
| References | |
| Download: ML20148M138 (9) | |
Text
June 1, 2020 MEMORANDUM TO: Victor E. Hall, Chief Vogtle Project Office Office of Nuclear Reactor Regulation FROM: Jennivine Rankin, Project Manager /RA/
Vogtle Project Office Office of Nuclear Reactor Regulation
SUBJECT:
SUMMARY
OF A PUBLIC MEETING WITH SOUTHERN NUCLEAR OPERATING COMPANY ON MAY 21, 2020 The U.S. Nuclear Regulatory Commission (NRC) staff held a Category 1 public meeting with Southern Nuclear Operating Company (SNC) on May 21, 2020. The purpose of the meeting was to discuss Inspection, Test, Analysis, and Acceptance Criteria (ITAAC) Index No. 201 regarding in-containment refueling water storage tank (IRWST) drain line flow resistance testing and the proposed alternative requirements for acceptance of preservice inspection (PSI) volumetric examination flaws for Vogtle Electric Generating Plant (VEGP) Units 3 and 4.
The meeting notice can be found in the Agencywide Documents Access and Management System (ADAMS) Accession No. ML20104A014. The meeting notice is also posted on the NRC public website. Enclosures 1 and 2 are the meeting agenda and attendance list for the meeting, respectively. The other documents referenced during the discussion can be found at the ADAMS Accession Nos. given below:
- ITAAC Closure Notification on Completion ML20132A159 of ITAAC 2.2.03.09a.i [Index No. 201]
- ITAAC Index Nos. 180 and 201 ML20139A084 Resistance Flowpath Drawings
- Notice of Uncompleted ITAAC 225-days ML18120A282 Prior to Initial Fuel Load Item 2.2.03.09a.i
[Index No. 201]
- Draft Proposed Alternative for ML20136B345 Requirements for PSI Acceptance of Volumetric Examinations CONTACT: Jennivine Rankin, NRR/VPO (301) 415-1530
V. Hall Summary of Meeting:
ITAAC Closure Notification for ITAAC 2.2.03.09a.i [Index Number 201]
On May 21, 2020, staff from the NRC conducted a public meeting with representatives from SNC to discuss the ITAAC closure notification (ICN) for Index No. 201 regarding IRWST drain line flow resistance testing. During review of the ICN, the staff had questions regarding differences between the ICN and the associated Uncompleted ITAAC Notification (UIN). SNC clarified the following:
- The ICN discussed a jumper between the A and B containment sump injection lines that was not discussed in the UIN. The reason for the jumper is to prevent flooding of containment during the test. SNC indicated that the added jumper, as shown on the provided diagrams, does not affect the measured flow resistance required by the ITAAC.
- The ICN discussed a temporary valve in the IRWST screen drain lines while the UIN discussed use of a compression plug. SNC explained that the use of a temporary valve was more convenient than a plug to isolate the two trains.
- SNC also confirmed that similar testing of ITAAC Index No. 180 used each parallel line into and out of the sump, even though the provided diagrams only show a single line in and out of the sump.
At the conclusion of the discussion, there was an opportunity for the public to provide comments and ask questions. There were no comments or questions from the public.
Proposed Alternative Requirements for Acceptance of Preservice Inspection Volumetric Examination Flaws On May 21, 2020, staff from the NRC conducted a public meeting with representatives from SNC to discuss proposed alternative requirements for acceptance of PSI volumetric examination flaws. The NRC staff reviewed the draft request and provided the following items for SNC to consider:
- Clarify the interval dates and duration of the proposed alternative to recognize its use during PSI prior to the 10 CFR 52.103(g) finding for each unit and potentially for the first inservice inspection interval (ISI) based on subsequent inspection requirements.
- Add applicable edition and addenda of the American Society of Mechanical Engineers (ASME) Code Section III to the applicable code edition and addenda section for completeness. In addition, the proposed alternative and basis section should include Section III because it requires that either Section XI be met or a repair be performed. In lieu of performing a repair, a flaw evaluation using the 2017 Edition of the ASME Section XI acceptance standards in IWB/IWC is being proposed. The NRC staff noted that the ASME Code Section III requirement for PSI, such as NB-5282, requires components whose volumetric examination reveals flaws that exceed the standards of IWB-3500 are not acceptable for service and shall be repaired, which differs from the alternative being requested.
- Further define the scope of the ASME Code components affected. One method would be to include all applicable systems and weld categories using specific categories from the ASME Code.
- Further limit the use of the proposed alternative. The NRC staff expressed concern that the draft proposed alternative is generically applicable to flaws found in all future PSI
V. Hall inspections for Units 3 and 4. This could result in a potentially large number of welds having flaws that are 75% through wall which could reduce the structural margin and thereby challenge the structural integrity of the safety related Class 1 and 2 welds in a reactor plant with no operating experience. This was discussed in the NRC staffs disapproval of the use of Code Case N-813 for PSI in Regulatory Guide 1.147, Inservice Inspection Code Case Acceptability, ASME Section XI, Division 1, and disapproval of IWB/IWC-3600 for PSI in the rulemaking for the 2015 and 2017 Editions of the ASME Code.
- Review the re-examination requirements (sampling and timing) of flaws that are evaluated and accepted by this proposed alternative. The current proposal only requires one reexamination on one weld in an interval, and this is not sufficient to verify that all flaws in all of the welds will not grow after the first period. Only performing reexamination towards the end of the first interval, in lieu of the first, second and third period of the first interval may allow the flaw to grow to unacceptable dimensions before this re-examination. The re-examination requirements should take into consideration that this is a generic application of IWB-3600 on a new plant design with no operating experience.
At the conclusion of the discussion, there was an opportunity for the public to provide comments and ask questions. There were no comments or questions from the public.
Docket Nos.: 52-025 52-026
Enclosures:
As stated cc w/encls: See next page
ML20148M138 *via e-mail NRC-001 OFFICE PM: NRR/VPO LA: NRR/VPO PM: NRR/VPO BC: NRR/VPO:BC NAME JRankin* (c) RButler* CSantos* VHall*
DATE 5/29/2020 5/29/2020 5/29/2020 5/29/2020 OFFICE PM: NRR/VPO NAME JRankin (s)
DATE 6/1/2020 AGENDA FOR PUBLIC MEETING U.S. NUCLEAR REGULATORY COMMISSION (NRC)
Thursday, May 21, 2020 Teleconference 9:00 a.m. - 12:00 p.m.
PURPOSE: To discuss issues associated with the safety review of licensing actions for Southern Nuclear Operating Companys (SNC) Vogtle Electric Generating Plant (VEGP) Units 3 and 4.
OPEN Time Topic Led By 9:00 a.m. Opening Remarks NRC 9:10 a.m. Discussion of Identified Topics NRC/SNC Opportunity for Public Comment NRC/Public Open Portion Concludes CLOSED (If needed) NRC/SNC 12:00 p.m. Adjourn Enclosure 1
PUBLIC MEETING U.S. NUCLEAR REGULATORY COMMISSION Thursday, May 21, 2020 Teleconference 9:00 a.m. - 12:00 p.m.
List of Attendees Name Organization Representing the Nuclear Regulatory Commission Jennie Rankin Tanny Santos Victor Hall NRR/VPO Chris Welch Billy Gleaves Jim Gaslevic Matt Mitchell NRR/DNRL John Honcharik Alain Artayet RII/DCO Representing Industry Curtis Castell Kyle Caver Mark Humphrey Garrett Godbee Amy Chamberlain Tom Petrak Southern Nuclear Operating Company Adam Quarles Justin Sciulli Kelli Roberts Warren Bamford Mark Wilson Jason Hurst Westinghouse Electric Company Brian Schleger Note: All participated via teleconference.
Enclosure 2
Vogtle Mailing List (Revised 4/7/2020) 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) gam@nei.org (Gia Montserrat)
Lindsay@georgiawand.org (Lindsay Harper) 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)
Michelle@cleanenergy.org (Michelle Powell)
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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) vcsummer2n3@gmail.com (Brian McIntyre) wayne.marquino@gmail.com (Wayne Marquino) weave1dw@westinghouse.com (Doug Weaver)
William.Birge@hq.doe.gov (William Birge)
X2edgran@southernco.com (Eddie R. Grant)
X2hagge@southern.com (Neil Haggerty)
X2dwwill@southernco.com (Daniel Williamson)
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