ML20140A189

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Public Meeting Summary May 14, 2020, NuScale Boron Redistribution Issue
ML20140A189
Person / Time
Site: NuScale
Issue date: 05/19/2020
From: Bavol B
NRC/NRR/DNRL/NRLB
To: Michael Dudek
NRC/NRR/DNRL/NRLB
References
Download: ML20140A189 (5)


Text

May 19, 2020 MEMORANDUM TO:

Michael I. Dudek, Chief New Reactor Licensing Branch Division of New and Renewed Licenses Office of Nuclear Reactor Regulation FROM:

Bruce M. Bavol, Project Manager /RA/

New Reactor Licensing Branch Division of New and Renewed Licenses Office of Nuclear Reactor Regulation

SUBJECT:

SUMMARY

OF THE MAY 14, 2020, CATEGORY 1 PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC TO DISCUSS NUSCALES GENERAL DESIGN CRITERIA 33 EXEMPTION - REACTOR COOLANT MAKEUP OF THE DESIGN CERTIFICATION APPLICATION On May 14, 2020, representatives from the U.S. Nuclear Regulatory Commission (NRC) and NuScale Power, LLC (NuScale), held a Category 1 public teleconference meeting to discuss NuScales General Design Criteria (GDC) 33 Exemption (Reactor Coolant Makeup of the NuScale Design Certification Application). Participants included personnel from the NRC, NuScale, and one member of the public.

The public meeting notice can be found in the Agencywide Documents Access and Management Systems (ADAMS) under Accession No. ML20134J037. This meeting notice was also posted on the NRC public website located at https://www.nrc.gov/reactors/new-reactors/design-cert/nuscale/documents.html.

The Meeting Agenda and List of Attendees can be found in Enclosures 1 and 2 respectively.

On May 14, 2020, NRC staff held a public meeting with NuScale to understand their position associated with an observed conflict in the scope of break sizes considered in their Chapter 15 accident analysis with respect to very small breaks and leaks that are being reviewed as part of NuScale recent Design Certification Application changes.

CONTACT: Bruce Bavol, NRR/DNRL 301-415-6715

NRC staff discussed how NuScales revised licensing approach does not appear to align with their GDC 33 exemption which states that their emergency core cooling system mitigates all break sizes. As a result of the public meeting, NuScale agreed to engage in additional discussions to develop a path forward. The staff will engage with NuScale further on this topic and will continue to evaluate the impact that this complex design change will have on the overall review schedule.

At the end of the teleconference, NRC staff solicited the public for input. The one member of the public on the bridge line responded and asked staff to summarize the GDC 33 exemption issue. The NRR technical branch chief summarized the issue to the satisfaction of the public participant.

Docket No.52-048

Enclosures:

1. Meeting Agenda
2. List of Participants cc w/encls.: DC NuScale Power, LLC Listserv

ML20140A189

  • via e-mail NRR-106 OFFICE NRR/DNRL/NRLB: PM NRR/DNRL/NRLB: LA NRR/DNRL/NRLB: PM NAME BBavol SGreen*

BBavol*

DATE 5/19/2020 5/19/2020 5/19/2020

U.S. NUCLEAR REGULATORY COMMISSION CATEGORY 1 PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC TO DISCUSS NUSCALES GENERAL DESIGN CRITERIA 33 EXEMPTION - REACTOR COOLANT MAKEUP DISTRIBUTION OF THE DESIGN CERTIFICATION APPLICATION Meeting Agenda May 14, 2020 1:00 p.m. - 2:30 p.m.

Time Topic 1:00 p.m. - 1:15 p.m.

Welcome and Introductions 1:15 p.m. - 1:40 p.m.

Technical discussion 1:40 p.m. - 1:50 p.m.

Public - Questions and Comments 1:50 p.m. - 2:30 p.m.

Closed Portion 2:30 p.m.

Adjourn

U.S. NUCLEAR REGULATORY COMMISSION CATEGORY 1 PUBLIC TELECONFERENCE WITH NUSCALE POWER, LLC TO DISCUSS NUSCALES GENERAL DESIGN CRITERIA 33 EXEMPTION - REACTOR COOLANT MAKEUP DISTRIBUTION OF THE DESIGN CERTIFICATION APPLICATION List of Attendees May 14, 2020 NAME AFFILIATION Marieliz Johnson U.S. Nuclear Regulatory Commission (NRC)

Rebecca Patton NRC Michael Dudek NRC Bruce Bavol NRC Joshua Borromeo NRC Alex Siwy NRC Ryan Nolan NRC Shanlai Lu NRC Gregory Cranston NRC Anna Bradford NRC Mike Snodderly NRC Carl Thurston NRC Gary Becker NuScale Power, LLC (NuScale)

Tom Bergman NuScale Adam Brigantic NuScale Ben Bristol NuScale Sarah Bristol NuScale Morris Byram NuScale Taylor Coddington NuScale Elisa Fairbanks NuScale Robert Gamble NuScale Karl Gross NuScale Paul Infanger NuScale Andy Lingenfelter NuScale Bryan Marty NuScale Mike Melton NuScale Rebecca Norris NuScale Steven Pope NuScale Matthew Presson NuScale Zack Rad NuScale Ross Snuggerud NuScale Tim Tovar NuScale Sarah Fields Public (Uranium Watch)