ML17331A088

Summary of Public Meeting with Entergy Operations, Inc. Neutron Fluence Calculation Method for the Waterford Steam Electric Station, Unit 3

ML17331A088
Person / Time
Site:	Waterford
Issue date:	12/06/2017
From:	April Pulvirenti Plant Licensing Branch IV
To:	Entergy Operations
Pulvirenti A
References
CAC MG0183, EPID L-2017-LRM-0037
Download: ML17331A088 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 December 6, 2017 LICENSEE: Entergy Operations, Inc.

FACILITY: Waterford Steam Electric Station, Unit 3

SUMMARY

OF OCTOBER 19, 2017, PUBLIC MEETING WITH ENTERGY OPERATIONS, INC. REGARDING NEUTRON FLUENCE CALCULATION METHOD FOR THE WATERFORD STEAM ELECTRIC STATION, UNIT 3 (CAC NO. MG0183; EPID L-2017-LRM-0037)

On October 19, 2017, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Entergy Operation, Inc. (Entergy, the licensee) at NRC headquarters, One White Flint North, 11555 Rockville Pike, Rockville, Maryland. The meeting notice and agenda, dated September 25, 2017, are available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML17290A691. The purpose of the meeting was to discuss neutron fluence calculation codes that would be used in the Updated Final Safety Analysis Report (UFSAR) and for license renewal for the Waterford Steam Electric Station, Unit 3 (Waterford 3). A list of the meeting attendees is enclosed.

During the meeting, the licensee indicated its plan to submit a license amendment request (LAR) to incorporate the RAPTOR-M3G code and associated fluence calculation method into the Waterford 3 UFSAR. The planned amendment would permit Waterford 3 to use the RAPTOR-M3G code to calculate fluence values for the plant's initial license term and, potentially, for the plant's proposed period of extended operation (PEO).

The licensee and NRC staff provided supporting documents for this meeting. The licensee provided an initial slide presentation, which is available at ADAMS Accession No. ML17290A655. The NRC staff provided a document of discussion topics describing technical items that need to be considered when preparing the planned LAR. These discussion topics are available at ADAMS Accession No. ML17290A049. The licensee provided a revision to its original slide presentation just prior to the meeting. The revised presentation contains minor changes and additional backup slides. The revised presentation is available at ADAMS Accession No. ML17306A165.

During the pre-submittal meeting, the licensee presented information regarding its planned LAR and discussed questions from the NRC staff. The licensee divided its presentation into three parts. The first part focused on the planned LAR to incorporate the RAPTOR-M3G code as it relates to the Waterford 3 current licensing basis (CLB). The licensee presented a brief description of how Waterford 3 would meet each of the 13 applicable regulatory positions that are specified in Regulatory Guide (RG) 1.190, "Calculational and Dosimetry Methods for Determining Pressure Vessel Neutron Fluence." The licensee stated that the planned LAR

would also be structured to address the applicable regulatory positions in RG 1.190 and the acceptability of the licensee's method.

The second part of the licensee's presentation focused on fluence calculation methodology as it relates to the proposed PEO for Waterford 3, which would commence under a renewed license.

The licensee presented its analytic uncertainty analysis results, including sensitivity studies, as applied to the extended beltline region.

Finally, the licensee addressed each of the the discussion topics that had been provided by the NRC staff (ADAMS Accession No. ML17290A049). The licensee described how the planned LAR would address bias and uncertainty estimates, sensitivity calculations in the extended beltline, measurement benchmarks for the extended beltline, and calculation benchmarks in the extended beltline.

The licensee stated that the planned LAR is scheduled to be submitted by December 1, 2017.

No regulatory decisions were reached at this meeting. No member of the public called in to listen or provided comments to the NRC staff after the business portion of the meeting and, thus, no Public Meeting Feedback forms were received.

Please direct any inquiries to me at 301-415-1390 or by e-mail at April.Pulvirenti@nrc.gov.

April L. Pulvirenti, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

List of Attendees cc: Listserv

LIST OF ATTENDEES OCTOBER 19, 2017, PUBLIC MEETING WITH ENTERGY OPERATIONS, INC.

REGARDING NEUTRON FLUENCE CALCULATION METHOD FOR WATERFORD STEAM ELECTRIC STATION, UNIT 3 U.S. Nuclear Regulatory Commission David Alley Lois James Phyllis Clark Elaine Keegan Robert Lukes James Medoff Seung Min Amrit Patel Robert Pascarelli Tom Wengert April Pulvirenti Benjamin Parks Lisa Regner Steve Ruffin Entergy Operations, Inc.

Alan Cox Remy Devoe Kevin Fitzsimmons Alan Harris Mandy Halter Paul Hymel John Jarrell Maria Zamber Westinghouse Benjamin Amiri Jainawei Chen Greg Fischer James Smith Public None Enclosure

ML17331A088 OFFICE NRR/D0RL/LPL4/PM NRR/D0RL/LPL4/LA NRR/D0RL/LPL4/BC NRR/D0RL/LPL4/PM NAME APuvirenti PBlechman RPascarelli APulvirenti DATE 12/4/2017 12/4/2017 12/5/2017 12/6/2017