ML073130536
| ML073130536 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee  |
| Issue date: | 11/27/2007 |
| From: | Kuo P NRC/NRR/ADRO/DLR/RLRB |
| To: | Balduzzi M Entergy Nuclear Operations |
| Rowley J, NRR/DLR/RLRB, 415-4053 | |
| References | |
| Download: ML073130536 (7) | |
Text
November 27, 2007
Mr. Michael A. Balduzzi Sr. Vice President & COO Regional Operations, NE Entergy Nuclear Operations, Inc.
440 Hamilton Avenue White Plains, NY 10601
SUBJECT:
UPDATE ON EXTENSION OF SCHEDULE FOR THE CONDUCT OF REVIEW OF THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION
Dear Mr. Balduzzi:
In a letter dated July 30, 2007, Entergy Nuclear Operations, Inc., submitted additional information, supplementing the Vermont Yankee Nuclear Power Station (VYNPS) license renewal application (LRA), for the U.S. Nuclear Regulatory Commission (the staff) review. The staff had immediate concerns with the information provided. By letter dated July 31, 2007, the staff extended the schedule for review of the VYNPS LRA. In that letter, the staff stated that the overall schedule was to be extended "-beyond the nominal thirty months (with hearing) by a minimum of two months plus the length of time required by VYNPS to submit the revised information."
By a letter dated August 29, 2007, the staff transmitted a request for additional information (RAI) related to the partial collapse of the west cooling tower cell 2-4. That letter stated that a revised schedule for completion of the VYNPS LRA review will be issued upon receipt of a satisfactory response to the RAI. VYNPS provided responses to the RAI in letters dated September 27, 2007, and October 18, 2007.
During a telephone conference call on August 20, 2007, the staff informed VYNPS representatives that the staff can not accept future license renewal commitments to evaluate time-limited aging analyses (TLAA) as a method of satisfying the requirements of 10 CFR 54.21(c)(1). In response to this conference call, VYNPS provided a supplement to their LRA in a letter dated September 17, 2007. The supplement attempted to address the requirements governing TLAA. On October 9 - 10, 2007, the staff conducted an on-site audit to verify the information provided in that supplement.
The staff asked six questions during the audit. In its letter dated November 14, 2007, Entergy responded to these six specific audit questions. The staff has reviewed this information and has a request for additional information (RAI) needed to complete its review (see RAI below). Once the staff has completed its review of the additional information, a revised schedule for review of the VYNPS LRA will be established. If you have any questions, please contact Jonathan Rowley of my staff by telephone at 301-415-4053 or via e-mail at JGR@nrc.gov. RAI 4.3.3-2
Your response to audit question # 387 in your November 14, 2007, letter states that "In most cases the maximum component stress difference with time matched the maximum stress intensity calculated by ANSYS. This shows that shearing stresses are negligible for the thermal transient at that location and the maximum component stress difference is the maximum stress intensity."
Please identify the exceptions where maximum component stress difference with time did not match the maximum stress intensity calculated by ANSYS. In addition, please justify the exceptions, based on quantitative evaluations, that the shearing stresses are negligible and the maximum component stress difference is the maximum stress intensity for the branch nozzle blend radius (nozzle corner) locations with geometrical discontinuities for the applicable thermal transients.
Your response should cover the shearing stress differences at the 0-180 degree axis and the 90-270 degree axis to the pipe run axis.
Sincerely, /RA/
Pao-Tsin Kuo, Director Division of License Renewal Office of Nuclear Reactor Regulation
Docket No. 50-271
cc: See next page
ML073130536 OFFICE: LA:DLR PM:RPB2:DLR BC:RPB2:DLR OGC D:DLR NAME: IKing JRowley RFranovich LSubin PTKuo DATE: 11/13/07 11/13/07 11/13/07 11/14/07 11/27/07 Letter to M. Balduzzi from P.T. Kuo, dated November 27, 2007
DISTRIBUTION:
SUBJECT:
UPDATE ON EXTENSION OF SCHEDULE FOR THE CONDUCT OF REVIEW OF THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION HARD COPY: DLR RF E-MAIL: PUBLIC SSmith (srs3)
SDuraiswamy RidsNrrDlr RidsNrrDlrRlra RidsNrrDlrRlrb RidsNrrDlrRlrc RidsNrrDlrReba RidsNrrDlrRebb RidsNrrDciCvib RidsNrrDciCpnb RidsNrrDraAfpb RidsNrrDeEmcb RidsNrrDeEeeb RidsNrrDssSbwb RidsNrrDssSbpb RidsNrrDssScvb RidsOgcMailCenter
JRowley RLaufer JShea RPowell, RI DScrenci, RI MModes, RI DPelton, SRI MYoung RidsOpaMail
Vermont Yankee Nuclear Power Station
cc:
Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406-1415
Mr. David R. Lewis Pillsbury, Winthrop, Shaw, Pittman, LLP 2300 N Street, NW Washington, DC 20037-1128
Mr. David O'Brien, Commissioner Vermont Department of Public Service 112 State Street Montpelier, VT 05620-2601
Mr. James Volz, Chairman Public Service Board State of Vermont 112 State Street Montpelier, VT 05620-2701
Chairman, Board of Selectmen Town of Vernon P.O. Box 116 Vernon, VT 05354-0116
Operating Experience Coordinator Vermont Yankee Nuclear Power Station 320 Governor Hunt Road Vernon, VT 05354
G. Dana Bisbee, Esq.
Deputy Attorney General 33 Capitol Street Concord, NH 03301-6937
Chief, Safety Unit Office of the Attorney General One Ashburton Place, 19th Floor Boston, MA 02108
Ms. Carla A. White, RRPT, CHP Radiological Health Vermont Department of Health P.O. Box 70, Drawer #43 108 Cherry Street Burlington, VT 05402-0070
Mr. David Mannai Manager, Licensing Entergy Nuclear Operations, Inc.
Vermont Yankee Nuclear Power Station P.O. Box 500 185 Old Ferry Road Brattleboro, VT 05302-0500
Resident Inspector Vermont Yankee Nuclear Power Station U.S. Nuclear Regulatory Commission P.O. Box 176 Vernon, VT 05354
Director, Massachusetts Emergency Management Agency ATTN: James Muckerheide 400 Worcester Road Framingham, MA 01702-5399
Jonathan M. Block, Esq.
Main Street P.O. Box 566 Putney, VT 05346-0566
Mr. John F. McCann Director, Licensing Entergy Nuclear Operations, Inc.
440 Hamilton Avenue White Plains, NY 10601
Mr. John T. Herron Sr. Vice President Entergy Nuclear Operations, Inc.
1340 Echelon Parkway Jackson, MS 39213
Vermont Yankee Nuclear Power Station
cc:
Mr. Oscar Limpias Vice President, Engineering Entergy Nuclear Operations, Inc.
1340 Echelon Parkway Jackson, MS 39213
Mr. Christopher Schwartz Vice President, Operations Support Entergy Nuclear Operations, Inc.
440 Hamilton Avenue White Plains, NY 10601
Mr. Michael J. Colomb Director of Oversight Entergy Nuclear Operations, Inc.
440 Hamilton Avenue White Plains, NY 10601
Mr. William C. Dennis Assistant General Counsel Entergy Nuclear Operations, Inc.
440 Hamilton Avenue White Plains, NY 10601
Mr. Theodore Sullivan Site Vice President Entergy Nuclear Operations, Inc.
Vermont Yankee Nuclear Power Station P.O. Box 500 185 Old Ferry Road Brattleboro, VT 05302-0500
Mr. James H. Sniezek 5486 Nithsdale Drive Salisbury, MD 21801
Mr. Garrett D. Edwards 814 Waverly Road Kennett Square, PA 19348
Ms. Stacey M. Lousteau Treasury Department Entergy Services, Inc.
639 Loyola Avenue New Orleans, LA 70113
Mr. Norman L. Rademacher Director, NSA Vermont Yankee Nuclear Power Station P.O. Box 0500 185 Old Ferry Road Brattleboro, VT 05302-0500
Mr. Raymond Shadis New England Coalition P.O. Box 98 Edgecomb, ME 04556
Mr. James P. Matteau Executive Director Windham Regional Commission 139 Main Street, Suite 505 Brattleboro, VT 05301
Mr. William K. Sherman Vermont Department of Public Service 112 State Street Drawer 20 Montpelier, VT 05620-2601
Mr. Michael D. Lyster 5931 Barclay Lane Naples, FL 34110-7306
Diane Curran, Esq.
Harmon, Curran, Spielberg &
Eisenberg, L.L.P 1726 M Street, NW, Suite 600 Washington, DC 20036
Ronald A. Shems, Esq.
Shems, Dunkiel, Kassel & Saunders, PLLC 91 College Street Burlington, VT 05401
Karen Tyler, Esq.
Shems, Dunkiel, Kassel & Saunders, PLLC 91 College Street Burlington, VT 05401
Vermont Yankee Nuclear Power Station
cc:
Sarah Hofmann, Esq. Director of Public Advocacy Department of Public Service 112 State Street - Drawer 20 Montpelier, VT 05620-2601
Jennifer J. Patterson, Esq.
Office of the New Hampshire Attorney General 33 Capitol Street Concord, NH 03301
Matias F. Travieso-Diaz, Esq.
Pillsbury Winthrop Shaw Pittman LLP 2300 N Street, NW Washington, DC 20037-1128
Matthew Brock, Esq.
Assistant Attorney General Office of the Massachusetts Attorney General Environmental Protection Division One Ashburton Place, Room 1813 Boston, MA 02108-1598
Anthony Z. Roisman, Esq.
National Legal Scholars Law Firm 84 East Thetford Road Lyme, NH 03768