ML21239A066

August 27, 2021, Summary: Discussion Between NRC and Dominion Regarding the NAPS Subsequent License Renewal - an Inconsistency in Documentation Regarding RCP Code Case N-481 (EPID No. L-2020-SLR-0000) - Summary

ML21239A066
Person / Time
Site:	North Anna
Issue date:	09/02/2021
From:	NRC/NRR/DNRL/NLRP
To:
James L
Shared Package
ML21239A046	List: ML21239A064 ML21239A066 ML21239A068
References
EPID L-2020-SLR-0000
Download: ML21239A066 (2)

Text

U.S. Nuclear Regulatory Commission Public Meeting Summary

Title:

Discussion between the U.S. Nuclear Regulatory Commission and D ominion Energy regarding the North Anna Subsequent License Renewal Application an inconsistency in documentation regarding Reactor Coolant Pump Code Case N 481, T LAA 4.7.6

Date of Meeting: August 27, 2021, 9:30 am - 10:30 am

Location: Webinar

Type of Meeting: This was a closed meeting as it contained trade secrets and com mercial or financial information (proprietary information).

Purpose of the Meeting(s):

To understand how Dominion Energy will address a documentation inconsistency regarding Reactor Coolant Pump (RCP) Code Case N 481, TLAA 4.7.6 identifi ed by the staff.

General Details:

The U.S. Nuclear Regulatory Commission (NRC) staff held a close d meeting with Dominion Energy and their NSSS Vendor (Westinghouse) to discuss an appar ent inconsistency in a Westinghouse technical document used to develop the North Anna Power Station Subsequent License Renewal Application (SLRA), Section 4.7.6, RCP Code Cas e N-481. The meeting started at 9:30 am and ended at 9:45 am. Four NRC staff, three Dominion Energy staff, and four Westinghouse staff were in attendance.

Summary of Meeting:

• Inconsistency in documentation regarding RCP Code Case N-481, TLAA 4.7.6

Dominion Energy began the meeting by displaying draft talking p oints to the staffs draft request for additional information (RAI). Westinghouse staff presented two proposed revisions to WCAP-18503-P Revision 1, Resolution of North Anna Power Statio n Units 1 & 2 Time-Limited Aging Analyses for Subsequent License Renewal, July 2020, to p rovide additional justification to address the documentation inconsistency.

Dominion Energy and their contractor, Westinghouse, will update WCAP-18503-P to eliminate the existing inconsistency, which will address the Staffs conc ern.

Therefore, the staff will not issue the draft RAI and no update to the SLRA is needed.

Public Participation Themes:

The meeting was closed due to the proprietary nature of the inf ormation discussed. No members of the public were in attendance.

Enclosure1 Action Items/Next Steps:

The NRC staff will prepare and issue a meeting summary.

Attachments:

Meeting description and agenda - ADAMS Accession No. ML21238A30 0 NRC Draft RAI - ADAMS Accession No. ML21238A085