ML073600752
| ML073600752 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 01/17/2008 |
| From: | Rowley J NRC/NRR/ADRO/DLR |
| To: | |
| Rowley J, NRR/DLR/RLRB, 415-4053 | |
| References | |
| Download: ML073600752 (4) | |
Text
January 17, 2008 LICENSEE: Entergy Nuclear Operations, Inc.
FACILITY: Vermont Yankee Nuclear Power Station
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON DECEMBER 18, 2007, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ENTERGY NUCLEAR OPERATIONS, INC., CONCERNING A REQUEST FOR ADDITIONAL INFORMATION PERTAINING TO THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Entergy Nuclear Operations, Inc., held a telephone conference call on December 18, 2007, to discuss and clarify the staff=s request for additional information (RAI) concerning the Vermont Yankee Nuclear Power Station license renewal application. The telephone conference call was useful in clarifying the intent of the staff=s RAI. provides a listing of the participants and Enclosure 2 contains the RAI discussed with the applicant, including a brief description on the status of the item.
The applicant had an opportunity to comment on this summary.
/RA/
Jonathan G. Rowley, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket No. 50-271
Enclosures:
As stated cc w/encls: See next page
ML073600752 OFFICE LA:RPOB:DLR PM:RPB2:DLR BC:RPB2:DLR NAME IKing JRowley RFranovich DATE 12/27/07 12/27/07 01/17/08
TELEPHONE CONFERENCE CALL VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS DECEMBER 18, 2007 PARTICIPANTS AFFILIATIONS Jonathan Rowley U.S. Nuclear Regulatory Commission (NRC)
Kenneth Chang NRC On Yee NRC Qi Gan NRC David Mannai Entergy Nuclear Operations, Inc. (Entergy)
David Lach Entergy Michael Metell Entergy Scott Goodwin Entergy James Fitzpatrick Entergy Alan Cox Entergy David Gerber Structural Integrity Associates (SIA)
Terry Herrmann SIA Enclosure 1
REQUESTS FOR ADDITIONAL INFORMATION VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION DECEMBER 18, 2007 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Entergy Nuclear Operations, Inc. held a telephone conference call on December 18, 2007, to discuss and clarify the following request for additional information (RAI) concerning the Vermont Yankee Nuclear Power Station (VYNPS) license renewal application.
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.
Discussion: The response to RAI 4.3.3-2, submitted by VY on December 11, 2007, was reviewed by several staff and discussed during the conference call. The staff indicated that the response did not adequately demonstrate that the shearing stresses are negligible and that the response also raised uncertainty of the validity of the methodology used to calculate stresses.
The NRC and Entergy staffs discussed alternative approaches for addressing environmentally assisted fatigue (EAF) for all NUREG/CR-6260 nozzle locations at VY and the use of the industry accepted computer code ANSYS.
Entergy indicated that some terminology misunderstanding may exist between the two sides.
Entergy requested a face-to-face meeting to ensure the understanding pertaining to this highly technical issue was properly and effectively communicated.
Enclosure 2
Letter to Entergy Nuclear Operations, Inc. From J. Rowley Dated January 17, 2008 DISTRIBUTION:
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON DECEMBER 18, 2007, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ENTERGY NUCLEAR OPERATIONS, INC., CONCERNING A REQUEST FOR ADDITIONAL INFORMATION PERTAINING TO THE VERMONT YANKEE NUCLEAR POWER STATION LICENSE RENEWAL APPLICATION HARD COPY:
DLR RF E-MAIL:
PUBLIC SSmith (srs3)
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Vermont Yankee Nuclear Power Station cc:
Regional Administrator, Region I Ms. Carla A. White, RRPT, CHP U.S. Nuclear Regulatory Commission Radiological Health 475 Allendale Road Vermont Department of Health King of Prussia, PA 19406-1415 P.O. Box 70, Drawer #43 108 Cherry Street Mr. David R. Lewis Burlington, VT 05402-0070 Pillsbury, Winthrop, Shaw, Pittman, LLP 2300 N Street, N.W. Mr. David Mannai Washington, DC 20037-1128 Manager, Licensing Entergy Nuclear Operations Mr. David OBrien, Commissioner Vermont Yankee Nuclear Power Station Vermont Department of Public Service P.O. Box 500 112 State Street 185 Old Ferry Road Montpelier, VT 05620-2601 Brattleboro, VT 05302-0500 Mr. James Volz, Chairman Resident Inspector Public Service Board Vermont Yankee Nuclear Power Station State of Vermont U. S. Nuclear Regulatory Commission 112 State Street P.O. Box 176 Montpelier, VT 05620-2701 Vernon, VT 05354 Chairman, Board of Selectmen Director, Massachusetts Emergency Town of Vernon Management Agency P.O. Box 116 ATTN: James Muckerheide Vernon, VT 05354-0116 400 Worcester Road Framingham, MA 01702-5399 Operating Experience Coordinator Vermont Yankee Nuclear Power Station Jonathan M. Block, Esq.
320 Governor Hunt Road Main Street Vernon, VT 05354 P.O. Box 566 Putney, VT 05346-0566 G. Dana Bisbee, Esq.
Deputy Attorney General Mr. John F. McCann 33 Capitol Street Director, Licensing Concord, NH 03301-6937 Entergy Nuclear Operations, Inc.
440 Hamilton Avenue Chief, Safety Unit White Plains, NY 10601 Office of the Attorney General One Ashburton Place, 19th Floor Mr. John T. Herron Boston, MA 02108 Sr. Vice President Entergy Nuclear Operations, Inc.
1340 Echelon Parkway Jackson, MS 39213
Vermont Yankee Nuclear Power Station cc:
Mr. Oscar Limpias Director, NSA Vice President, Engineering Vermont Yankee Nuclear Power Station Entergy Nuclear Operations, Inc. P.O. Box 0500 1340 Echelon Parkway 185 Old Ferry Road Jackson, MS 39213 Brattleboro, VT 05302-0500 Mr. Christopher Schwartz Vice President, Operations Support Mr. Raymond Shadis Entergy Nuclear Operations, Inc. New England Coalition 440 Hamilton Avenue Post Office Box 98 White Plains, NY 10601 Edgecomb, ME 04556 Mr. Michael J. Colomb Mr. James P. Matteau Director of Oversight Executive Director Entergy Nuclear Operations, Inc. Windham Regional Commission 440 Hamilton Avenue 139 Main Street, Suite 505 White Plains, NY 10601 Brattleboro, VT 05301 Mr. William C. Dennis Mr. William K. Sherman Assistant General Counsel Vermont Department of Public Service Entergy Nuclear Operations, Inc. 112 State Street 440 Hamilton Avenue Drawer 20 White Plains, NY 10601 Montpelier, VT 05620-2601 Mr. Theodore Sullivan Mr. Michael D. Lyster Site Vice President 5931 Barclay Lane Entergy Nuclear Operations, Inc. Naples, FL 34110-7306 Vermont Yankee Nuclear Power Station P.O. Box 500 Diane Curran, Esq.
185 Old Ferry Road Harmon, Curran, Spielberg &
Brattleboro, VT 05302-0500 Eisenberg, L.L.P 1726 M Street, NW, Suite 600 Mr. James H. Sniezek Washington, DC 20036 5486 Nithsdale Drive Salisbury, MD 21801 Ronald A. Shems, Esq.
Shems, Dunkiel, Kassel & Saunders, PLLC Mr. Garrett D. Edwards 91 College Street 814 Waverly Road Burlington, VT 05401 Kennett Square, PA 19348 Karen Tyler, Esq.
Ms. Stacey M. Lousteau Shems, Dunkiel, Kassel & Saunders, PLLC Treasury Department 91 College Street Entergy Services, Inc. Burlington, VT 05401 639 Loyola Avenue New Orleans, LA 70113 Mr. Norman L. Rademacher Sarah Hofmann, Esq.
Vermont Yankee Nuclear Power Station cc:
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 John Sipos, Assistant Attorney General Office of the Attorney General The Capitol State Street Albany, NY 12224