IR 05000336/2006016

IR 05000336-06-016; Dominion Nuclear Connecticut, Inc.; 09/12/2006 - 09/14/2006; Millstone Power Station, Unit 2; Supplemental Inspection for a White Performance Indicator in the Initiating Events Cornerstone

ML063000231
Person / Time
Site:	Millstone
Issue date:	10/27/2006
From:	Doerflein L Engineering Region 1 Branch 2
To:	Christian D Dominion Resources
References
IR-06-016
Download: ML063000231 (13)

Text

ber 27, 2006

SUBJECT:

MILLSTONE POWER STATION UNIT 2 - SUPPLEMENTAL INSPECTION FOR WHITE PERFORMANCE INDICATOR, INSPECTION REPORT NO. 05000336/2006016

Dear Mr. Christian:

On September 14, 2006, the U.S. Nuclear Regulatory Commission (NRC) completed a supplemental inspection at your Millstone Power Station Unit 2. The enclosed report documents the inspection results, which were discussed on September 14, 2006, with Mr. A. Jordan and other members of your staff.

The NRC performed this supplemental inspection to assess your activities to address the Millstone Unit 2 Unplanned Scrams With Loss of Normal Heat Removal Performance Indicator crossing the Green-White threshold in the first quarter of calendar year 2006. The purpose of this inspection was to assure that the causes of the performance issues associated with this PI crossing the Green-White threshold were understood, the root cause and extent-of-condition were identified, and that corrective actions were sufficient. This supplemental inspection was performed in accordance with Inspection Procedure 95001, Inspection for One Or Two White Inputs in A Strategic Performance Area.

Based upon the results of this inspection, no findings of significance were identified. The NRC determined that the problem identification, root and contributing cause evaluation, extent of condition assessment, and corrective actions for the white performance indicator were adequate. Therefore, consistent with NRC Inspection Manual Chapter 0305, Operating Reactor Assessment Program, the performance indicator will only be considered in assessing plant performance until it crosses below the threshold, returning it to a Green characterization.

In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records component of NRCs document system (ADAMS).

Mr. David ADAMS is accessible from the NRC Website at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Sincerely,

/RA/

Lawrence T. Doerflein, Chief Engineering Branch 2 Division of Reactor Safety Docket No. 50-336 License No: DPR-65 Enclosure: Inspection Report 05000336/2006016 w/Attachment cc w/encl:

J. A. Price, Site Vice President, Millstone Station C. L. Funderburk, Director, Nuclear Licensing and Operations Support D. W. Dodson, Supervisor, Station Licensing L. M. Cuoco, Senior Counsel C. Brinkman, Manager, Washington Nuclear Operations J. Roy, Director of Operations, Massachusetts Municipal Wholesale Electric Company First Selectmen, Town of Waterford B. Sheehan, Co-Chair, NEAC E. Woollacott, Co-Chair, NEAC E. Wilds, Director, State of Connecticut SLO Designee J. Buckingham, Department of Public Utility Control G. Proios, Suffolk County Planning Dept.

R. Shadis, New England Coalition Staff G. Winslow, Citizens Regulatory Commission (CRC)

S. Comley, We The People D. Katz, Citizens Awareness Network (CAN)

R. Bassilakis, CAN J. M. Block, Attorney, CAN P. Eddy, Electric Division, Department of Public Service, State of New York P. Smith, President, New York State Energy Research and Development Authority J. Spath, SLO Designee, New York State Energy Research and Development Authority

Mr. David