ML15210A326

LTR-15-0388-1 - John W. Stetkar Letter Nine Mile Point Nuclear Station Unit 2 Maximum Extended Load Line Limit Analysis Plus (Mellla+) License Amendment Request

ML15210A326
Person / Time
Site:	Nine Mile Point
Issue date:	09/04/2015
From:	Satorius M NRC/EDO
To:	John Stetkar Advisory Committee on Reactor Safeguards
Vaidya B, NRR/DORL/LPL1-1, 415-3308
Shared Package
ML15210A526	List: ML15210A326
References
LTR-15-0388-1, TAC MF3056
Download: ML15210A326 (3)

Text

September 4, 2015 Mr. John W. Stetkar, Chairman Advisory Committee on Reactor Safeguards U.S. Nuclear Regulatory Commission Washington, DC 20555

SUBJECT:

NINE MILE POINT NUCLEAR STATION UNIT NO. 2 - MAXIMUM EXTENDED LOAD LINE LIMIT ANALYSIS PLUS LICENSE AMENDMENT REQUEST (TAC NO. MF3056)

Dear Mr. Stetkar:

The purpose of this letter is to provide the Advisory Committee on Reactor Safeguards (ACRS) with the results of the U.S. Nuclear Regulatory Commission staffs (NRC or the staff) review and evaluation of the recommendations from the ACRS letter dated July 21, 2015. The letter resulted from the staffs briefing during the 626th meeting of the ACRS on July 8, 2015. The ACRS completed its review of the license amendment request and associated NRC draft safety evaluation for Nine Mile Point Nuclear Station Unit 2 (NMP2) operation in the Maximum Extended Load Line Limit Analysis Plus (MELLLA+) domain and recommended the following:

(1) the Exelon application for NMP2 operation in the MELLLA+ domain should be approved, subject to the limitation and conditions identified in the staffs draft safety evaluation; (2) plant features, such as automated actions to initiate feedwater flow reduction and increased boron-10 enrichment in the standby liquid control system, enhance protection against anticipated transient without scram instabilities during MELLLA+ operation. The NRC staff agrees with these recommendations.

The staff appreciates the comments and recommendations provided by the ACRS and looks forward to continuing to work with the Committee in the future.

Sincerely,

/RA/

Mark A. Satorius Executive Director for Operations cc: Chairman Burns Commissioner Svinicki Commissioner Ostendorff Commissioner Baran SECY

Package: ML15203B148 Letter: ML15210A326 Incoming: ML15201A467 *via e-mail DORL/LPL1-1/BC OFFICE DORL/LPL3-2/PM DORL/LPL1-1/LA ADM/DAS/PB* DSS/SRXB/BC (A)

NAME BVaidya KGoldstein JDougherty MDudek CJackson DATE 8/04/2015 7/30/2015 8/04/2015 8/04/2015 8/05/2015 OFFICE NRR/DSS/D NRR/DORL/D (A) NRR/D EDO NAME TMcGinty LLund WDean (MEvans for) MSatorius DATE 8/07/2015 8/10/2015 8/17/15 09/04/15 Memo to John W. Stetkar from Mark A. Satorius dated September 4, 2015

Subject:

NINE MILE POINT NUCLEAR STATION UNIT NO. 2 - MAXIMUM EXTENDED LOAD LINE LIMIT ANALYSIS PLUS LICENSE AMENDMENT REQUEST (TAC NO. MF3056)

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