ML16091A454

Audit Plan Regarding Application for License Amendment, Issues Identified in Westinghouse Documents NSAL-09-05, REV1 and NSAL-15-1

ML16091A454
Person / Time
Site:	North Anna
Issue date:	04/12/2016
From:	V Sreenivas Plant Licensing Branch II
To:	Heacock D Virginia Electric & Power Co (VEPCO)
Sreenivas V
References
CAC MF7186, CAC MF7187
Download: ML16091A454 (5)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 12, 2016 Mr. David A. Heacock President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711

SUBJECT:

NORTH ANNA POWER STATION, UNITS 1 AND 2 -AUDIT PLAN REGARDING APPLICATION FOR LICENSE AMENDMENT, ISSUES IDENTIFIED IN WESTINGHOUSE DOCUMENTS, NUCLEAR SAFETY ADVISORY LETTER (NSAL), NSAL-09-5, REVISION 1 AND NSAL-15-1, REVISION 0. (CAC NO. MF7186 AND MF7187)

Dear Mr. Heacock:

By letter dated December 10, 2015 (Agencywide Documents Access and Management System Accession No. ML15352A108), Dominion (the licensee) submitted a license amendment request (LAR) for the North Anna Power Station, Units 1 and 2. The proposed license amendment would revise the Technical Specifications (TS) to address the issues identified in Westinghouse Nuclear Safety Advisory Letter (NSAL), NSAL-09-5, Revision 1 and NSAL-15-1, Revision 0.

The U.S. Nuclear Regulatory Commission (NRC) staff will be conducting an on-site audit at NRC One White Flint North, Head Quarters - Room OWFN - 04B04, 11555 Rockville Pike, Rockville MD 20851. The purpose of the audit is to 1) review detailed calculations, analyses, and technical bases; 2) identify further information that may be necessary to reach a licensing or regulatory decision; 3) discuss possible requests for additional information; and 4) examine Core Operating Limits Report Reference List of Analysis Methods in meeting GL 88-16 Guidance.

D. Heacock If you have any questions, please contact me at 301-415-2597 or by e-mail at v.sreenivas@nrc.gov.

Sincerely, V. Sreenivas, Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-338 and 50-339

Enclosure:

Audit Plan cc w/encl: Distribution via Listserv

AUDIT PLAN APRIL 26-27, 2016 NORTH ANNA POWER STATION, UNITS 1 and 2 DOCKET NOS. 50-338 AND 50-339 (CAC NOS. MF7186 AND MF7187)

1. BACKGROUND By letter dated December 10, 2015 (Agencywide Documents Access and Management System Accession No. ML15352A108), Dominion (the licensee) submitted a license amendment request (LAR) for the North Anna Power Station, Units 1 and 2. The proposed license amendment would revise the Technical Specifications (TS) to address the issues identified in two Westinghouse Nuclear Safety Advisory Letters (NSAL). Specifically, the proposed changes will address the issues identified in:

- Westinghouse NSAL-09-5, Revision 1 by relocating required operating space reductions (power and axial flux difference) to the Core Operating Limits report (COLR).

- Westinghouse NSAL-15-1, Revision O by defining TS surveillance requirements for steady-state and transient FQ(Z) (heat flux hot channel factor) and corresponding actions with which to apply an appropriate penalty factor to measured results.

2. REGULATORY AUDIT SCOPE The U. S. Nuclear Regulatory Commission (NRC) staff will focus on the following topics during this audit:

• Technical basis for all the Completion Times listed in the LAR.

• Section 2.1 of the LAR, "Current use of Dominion Relaxed Power Distribution (RPDC),

relocation of equations to the TS Bases, and revision of TS required Actions."

• Section 2.2 of the LAR, "Surveillance requirements for the two representations of FQ(Z)."

• Sections 2.3 of the LAR, specifically the last paragraph, "Based on Dominion's analytical assessment of internal and external operating experiences (e.g. Westinghouse Communication 06-IC-03, Reference 5), the magnitudes of the lower and upper core regions excluded from FQ surveillances had been proactively and conservatively reduced (in approximately 2006) from what was and is currently described in the North Anna Technical Specification Bases. An update to the Technical Specification Bases to expand the FQ axial surveillance regions being tracked by Dominion's corrective action system."

• Penalty factors for Flux Map Analysis (Table 3.2.-2 of the LAR).

• TS 3.2.1 - Conditions B, Required Actions and Completion Time.

Enclosure

• COLR Reference List of Analysis Methods in meeting GL 88-16 Guidance, "approved methodology in COLR reference list that is used to determine core operating limits."

3. TEAM AND REVIEW ASSIGNMENTS

• V. Sreenivas, DORL/LPL 11 Project Manager

• Fred M. Forsaty, DSS/SRXB- Lead Reviewer

• Pete Snyder, DSS/STSB

• DSS/SNPB - TBD

4. LOGISTICS Regulatory Audit Dates: May 4 - 5, 2016.

Vendor Location: TBD

5. DELIVERABLES Regulatory Audit Summary.

ML16091A454

• via memorandum dated March 31, 0216 OFFICE DORL/LPL2-1 /PM DORL/LPL2-1/LA DSS/SRXB/BC(A)*

NAME VSreenivas SFigueroa EOesterle DATE 4/5/16 4/4/16 03/31/2016 OFFICE DORL/LPL2-1 /BC DORL/LPL2-1 /PM NAME MMarkley VSreenivas DATE 4/12/16 4/12/16