ML102860002

Summary of Closed Meeting with Nine Mile Point Nuclear Station, LLC, to Discuss Proposed Extended Power Uprate (EPU) Steam Dryer Review and Analyses for Nine Mile Point, Unit No. 2

ML102860002
Person / Time
Site:	Nine Mile Point
Issue date:	10/19/2010
From:	Richard Guzman Plant Licensing Branch 1
To:
Guzman R, NRR/DORL, 415-1030
References
TAC ME1476
Download: ML102860002 (5)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 19, 2010 LICENSEE: Nine Mile Point Nuclear Station, LLC FACILITY: Nine Mile Point Nuclear Station, Unit NO.2 SUB~IECT:

SUMMARY

OF CLOSED MEETING HELD ON SEPTEMBER 23, 2010, WITH NINE MILE POINT NUCLEAR STATION, LLC, TO DISCUSS PROPOSED EXTENDED POWER UPRATE (EPU) STEAM DRYER REVIEW AND ANALYSES FOR NINE MILE POINT, UNIT NO.2 (TAC NO. ME1467)

On September 23,2010, a closed meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and representatives of Nine Mile Point Nuclear Station, LLC (NMPNS or the licensee), and their contractors from Continuum Dynamics, Inc. (COl) at the NRC One White Flint North Building in Rockville, Maryland. The purpose of this meeting was to discuss the proposed changes to the licensee's steam dryer analyses supporting the licensee's application dated May 27, 2009 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML091610103), as supplemented by letters dated May 7 (ML101380307), June 30 (ML101900471), and July 30,2010 (ML102170191). The meeting was closed since the information discussed had been previously determined to contain proprietary commercial information and be withheld from public disclosure in accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390. The purpose of this meeting summary is to briefly describe the meeting, identify the participants, and document the presentation slides.

NMPNS made a detailed presentation on its proposed resolution of NRC staff's request for additional information (RAI) questions (ADAMS Accession No. ML102770698) related to its steam dryer analyses supporting the proposed EPU for Nine Mile Point, Unit No.2 (NIVIP2).

Specifically, NMPNS discussed its application of a revised benchmark applied as Acoustic Circuit Model, Revision 4.1 to address NRC staff supplemental RAls related to: (1) the stress analysis results provided in COl Report Nos. 10-11 and 10-12 (RAI-6); (2) modified figures supporting previously submitted recirculation pump frequencies (RAI-7); (3) additional technical basis for main steam line coherence estimates, bias, and uncertainties (RAI-8); (4) additional justification in its evaluation of acoustic resonance conditions (RAI-17); (5) the estimation of fatigue stresses at fillet welds (RAI-18); and (6) the modifications to the steam dryer closure plate, and the application of the associated submodeling approach (RAI-20 and RAI-21, respectively).

The licensee's proprietary handouts presented at the meeting are located in ADAMS, Accession No. ML102861853, as a non-publicly available, official agency record. The enclosed documents are as follows: (1) agenda for the meeting and (2) the meeting attendance list.

-2 Please direct any inquiries to me at (301) 415-1030, or Richard.Guzman@nrc.gov.

Sincerely, Richard V. Guzman, Senior Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-410

Enclosures:

As stated cc w/encls: Distribution via Listserv

Agenda for Closed Meeting U. S. Nuclear Regulatory Commission Conference Room: 0-16-B4 11555 Rockville Pike, Rockville, Maryland Thursday, September 23, 2010 1:00 p.m. - 4:00 p.m.

PURPOSE: Nine Mile Point Nuclear Station, LLC (NMPNS) presented information concerning the proposed changes to its steam dryer analyses supporting its supplemental information dated May 7, June 30, and July 30, 2010. This was a closed meeting, as proprietary commercial information was discussed.

Led By 1:00 p.m. - 1:15 p.m. Opening Remarks NRC 1:15 p.m. - 1:30 p.m. NMPNS Remarks/Introduction NMPNS 1:30 p.m. - 3:15 p.m. NMPNS proposed approach using NMPNS/CDI Re-benchmarked Acoustic Circuit Model 3:15 p.m. - 3:45 p.m. NRC staff Q&A NRC/NMPNS 3:45 p.m. - 4:00 p.m. Summary/Next Steps NRC/NMPNS Enclosure 1

Attendance List U. S. Nuclear Regulatory Commission Conference Room: 0-16-B4 11555 Rockville Pike, Rockville, Maryland Thursday, September 23, 2010 1:00 p.m. - 4:00 p.m.

Name Organization Rich Guzman NRC Kamal Manoly NRC Chakrapani Basava~u NRC Steve Hambric Argonne National Laboratory/Penn State Joseph Pacher NMPNS Theresa Darling NMPNS George Inch NMPNS Dale Goodney NMPNS David Dellario NMPNS Alan Bilanin CDI Milton Teske CDI Alex Boschitsch CDI Denzel Housley Tennessee Valley Authority/Browns Ferry William Bentley Tennessee Valley Authority/Browns Ferry Pete Gaillard Tennessee Valley Authority/Browns Ferry Stan Day NMPNS/Excel Services Conference Line Participants Vik Shah Argonne National Laboratory Samir Ziada McMaster University Steve Hammer Monticello Doug Blair Monticello Enclosure 2

' ML102860002 *Concurrence via e-mail OFFICE LPL1-1/PM LPL1-1/LA* LPL1-1/BC NAME RGuzman SUttle NSalqado DATE 10/19/10 10/19/10 10/19/10