ML081140343
| ML081140343 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 04/28/2008 |
| From: | John Hughey NRC/NRR/ADRO/DORL/LPLI-2 |
| To: | Christian D Virginia Electric & Power Co (VEPCO) |
| Hughey J, NRR/DORL, 301-415-3204 | |
| References | |
| TAC MD4837 | |
| Download: ML081140343 (5) | |
Text
April 28, 2008 Mr. David A. Christian President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711
SUBJECT:
MILLSTONE POWER STATION, UNIT NO. 2 - WITHDRAWAL OF AN AMENDMENT REQUEST REGARDING CHARGING PUMP FLOW SURVEILLANCE REQUIREMENTS (TAC NO. MD4837)
Dear Mr. Christian:
By letter dated February 20, 2007 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070510599), as supplemented by letter dated March 6, 2008, (ADAMS Accession No. ML080660652), you applied for an amendment to Millstone Power Station, Unit No. 2 (MPS2), Renewed Facility Operating License No. DPR-65. The proposed change would have revised the MPS2 Technical Specifications to eliminate Surveillance Requirement 4.5.2.e, which verifies charging pump flowrate. Subsequently, by letter dated April 17, 2008 (ADAMS Accession No. ML081080201), you withdrew the amendment request.
As referenced in your letter dated April 17, 2008, the Nuclear Regulatory Commission (NRC) staff identified issues regarding the license amendment request during a teleconference with Mr.
Bill Bartron of your staff on April 1, 2008. Specifically, the NRC staff has identified apparent discrepancies between the information provided in the license amendment request (LAR) dated February 20, 2007, and the facility licensing and design basis. Section 5.1 and 5.2 of the LAR state that charging pump flow is not credited for mitigation of Final Safety Analysis Report (FSAR) Chapter 14 accident analyses for MPS2. However, the NRC staff identified that Table 14.0.9-1, Overview of Plant Systems and Equipment Available for Transient and Accident Conditions, of the MPS2 FSAR credits charging pump flow to mitigate an inadvertent opening of a pressurizer pressure relief valve. Specifically, information in this Table indicates that the safety-grade charging system is credited to mitigate the MPS2 FSAR Chapter 14 accident consequences of an inadvertent opening of the pressurizer pressure relief valves.
Discussions with Mr. Bill Bartron of your staff, as noted above, confirmed that, while technical evaluations had been performed after submittal of the LAR to justify not crediting the charging pumps, the design basis calculation of record included charging pump operation to mitigate the inadvertent opening of a pressurizer relief valve event.
Based on the withdrawal of the license amendment request, TAC No. MD4837 is being closed.
The Commission has filed the enclosed Notice of Withdrawal of Application for Amendment to Facility Operating License with the Office of the Federal Register for publication.
Please contact me at (301) 415-3204 if you have any questions on this issue.
Sincerely,
/ra/
John D. Hughey, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-336
Enclosure:
Notice of Withdrawal cc w/encl: See next page
ML081140343 OFFICE NRR/LPL1-2/PM NRR/LPL1-2/LA NRR/LPL1-2/BC NAME JHughey ABaxter HChernoff DATE 04/25/08 04/23/08 04/28/08
Millstone Power Station, Unit No. 2 cc:
Lillian M. Cuoco, Esquire Senior Counsel Dominion Resources Services, Inc.
Building 475, 5th Floor Rope Ferry Road Waterford, CT 06385 Edward L. Wilds, Jr., Ph.D.
Director, Division of Radiation Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 First Selectmen Town of Waterford 15 Rope Ferry Road Waterford, CT 06385 Charles Brinkman, Director Washington Operations Nuclear Services Westinghouse Electric Company 12300 Twinbrook Pkwy, Suite 330 Rockville, MD 20852 Senior Resident Inspector Millstone Power Station c/o U.S. Nuclear Regulatory Commission P.O. Box 513 Niantic, CT 06357 Mr. J. Alan Price Site Vice President Dominion Nuclear Connecticut, Inc.
Building 475, 5th Floor Rope Ferry Road Waterford, CT 06385 Mr. J. W. "Bill" Sheehan Co-Chair NEAC 19 Laurel Crest Drive Waterford, CT 06385 Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terry's Plain Road Simsbury, CT 06070 Ms. Nancy Burton 147 Cross Highway Redding Ridge, CT 00870 Mr. Chris L. Funderburk Director, Nuclear Licensing and Operations Support Dominion Resources Services, Inc.
Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711 Mr. William D. Bartron Licensing Supervisor Dominion Nuclear Connecticut, Inc.
Building 475, 5th Floor Rope Ferry Road Waterford, CT 06385 Mr. Joseph Roy, Director of Operations Massachusetts Municipal Wholesale Electric Company Moody Street P.O. Box 426 Ludlow, MA 01056 Mr. David A. Sommers Dominion Resources Services, Inc.
5000 Dominion Boulevard Glen Allen, VA 23060-6711
7590-01-P UNITED STATES NUCLEAR REGULATORY COMMISSION DOMINION NUCLEAR CONNECTICUT, INC DOCKET NO. 50-336 NOTICE OF WITHDRAWAL OF APPLICATION FOR AMENDMENT TO RENEWED FACILITY OPERATING LICENSE NO. DPR-65 MILLSTONE POWER STATION, UNIT NO. 2 The U.S. Nuclear Regulatory Commission (the Commission) has granted the request of Dominion Nuclear Conneticut, Inc., (the licensee) to withdraw its February 20, 2007, application for proposed amendment to Renewed Facility Operating License No. DPR-65 for the Millstone Power Station, Unit No. 2 (MPS2), located in New London County, Connecticut.
The proposed amendment would have revised the MPS2 Technical Specifications to eliminate Surveillance Requirement 4.5.2.e, which verifies charging pump flowrate. The Commission had previously issued a Notice of Consideration of Issuance of Amendment published in the FEDERAL REGISTER on December 4, 2007 (72 FR 68209). However, by letter dated April 17, 2008, the licensee withdrew the proposed change.
For further details with respect to this action, see the application for amendment dated February 20, 2007, as supplemented by letter dated March 6, 2008, and the licensee's letter dated April 17, 2008, which withdrew the application for a license amendment. Documents may be examined, and/or copied for a fee, at the NRC=s Public Document Room (PDR), located at One White Flint North, Public File Area O1 F21, 11555 Rockville Pike (first floor), Rockville, Maryland. Publicly available records will be accessible electronically from the Agencywide Documents Access and Management Systems (ADAMS) Public Electronic Reading Room on the internet at the NRC Web site, http://www.nrc.gov/reading-rm.html. Persons who do not have
access to ADAMS or who encounter problems in accessing the documents located in ADAMS should contact the NRC PDR Reference staff by telephone at 1-800-397-4209, or 301-415-4737 or by email to pdr@nrc.gov.
Dated at Rockville, Maryland, this 28th day of April 2008.
FOR THE NUCLEAR REGULATORY COMMISSION
/ra/
John D. Hughey, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation