ML18153A406
| ML18153A406 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna  |
| Issue date: | 05/23/1997 |
| From: | Edison G, Kalyanam N NRC (Affiliation Not Assigned) |
| To: | Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| References | |
| GL-95-03, GL-95-3, TAC-M92255, TAC-M92256, TAC-M92281, TAC-M92282, NUDOCS 9705290044 | |
| Download: ML18153A406 (3) | |
Text
UNITED STATES
. NUCLEAR REGULATORY COMMISSION r. _ '?L'J'{) J,Z..,@ I WASHINGTON, o.c. 20555-0001
./b ?o / L-a *
. May 23, 1997 Mr. J.P. O'Hanlon Senior Vice President - Nuclear Virginia Electric and Power Company 5000 Dominion Blvd.
. Glen Allen, Virginia 23060
SUBJECT:
COMPlETION OF LICENSING ACTION FOR GENERIC LETTER 95-03, "CIRCUMFERENTIAL CRACKING OF STEAM GENERATOR TUBES, 11 DATED APRIL 28, 1995, - SURRY POWER STATION, UNITS-1 & 2 AND NORTH ANNA POWER STATION, UNITS 1 & 2 (TAC NOS. M92281, M92282, M92255 AND M92256)
Dear Mr. O'Hanlon:
On April 28, 1995, the U.S. Nuclear Regulatory Commission {NRC) issued Generic Letter (GL) 95-03,,"Circumferential Cracking of Steam Generator Tubes," to all*
holders of operating licenses or construction permits for pressurized-water
- reactors. The NRC issued GL 95-03 for three principal reasons:
(1)
Notify addressees about the safety significance of the recent steam generator tube inspection findings at Maine Yankee Atomic Power Station.
(2)
Request that all addressees implement the actions described within the generic letter.
(3)
Re qui re that a 11 addressees submlt to the NRC a written response*
regarding implementation of the requested actions.
In addition, GL 95-03 alerted addressees to the importance of performing comprehensive examinations of steam generator tubes using techniques and equipment capable of reliably detecting the types of degradation to which the steam generator tubes may be susceptible. The staff also noted that the performance of steam generator tube examinations is controlled, in part, by Appendix B to Title 10, Part 50, of the Code of Federal Regulations (10 CFR Part 50).
In GL 95-03, the NRC staff also requested that licensees take the following actions: *
(1)
-(2)
Evaluate recent operating experience with respect to the detection and sizing of circumferential indications to determine the applicability to their plants~
On the basis of the evaluation in Item (1) above, as well as past inspection scope and results, susceptibility to circumferential cracking, threshold of detection, expected or inferred crack growth rates, and other relevant factors, develop _a safety assessment
- justifying continued operation until the next scheduled steam generator I
tube inspections.
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(3)
Develop plans for the next steam generator tube inspections as they pertain to the detection of circumferential cracking.
The inspection plans should address, but not be limited to, scope (including sample expansion criteria, if applicable), methods, equipment, and criteria (including personnel training and qualification).
To document the outcome of these actions, the NRC staff requested that addressees prepare and submit the following:
(I)
A safety assessment justifying continued operation, predicated on the evaluation performed in accordance with requested actions I and 2 (above)."
(2)
A summary of the inspection plans developed in accordance with requested action 3 (above) and a schedule for the next planned inspection.
In response to GL 95-03, you provided letters dated June 27, 1995, and October 5, 1995, for Surry Power Station, Units I and 2, and North Anna Power Station, Units I and 2.
These submittals provided the information requested by GL 95-03; therefore TAC Nos. M92281, M92282, M92255 and M92256 are closed.
For your information~ the staff's findings regarding this issue are contained in NUREG-1604, "Circumferential C~acking of Steam Generator Tubes."
If you have any questions regarding this matter, please contact G. Edison at (301) 415-1448 for Surry Power Station, Units I and 2, and N. Kalyanam at (301) 415-1480 for North Anna Station, Units I and 2.
(Or1ginal Signed By)
N. Kalyanam, Project Manager Project Directorate II-I Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos:
50-280, 50-281 and 50-338, 50-339 cc:
See next page Distribution D_pJil<et_ -F_i 1 e-i K. Karwoski PUBLIC S. Dembek PDII-1 RF S. Varga OGC ACRS J. Johnson, RII NAME DATE COPY Sincerely, (Original Signed By)
Gordon E. Edison, Sr. Project Manager Project Directorate II-I Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation AD: PDII-1.
MRei nhar'&llr S.8, 97 Yes/No
_....._~---*- ~--~--.-
__.-_ -. --~
Virginia Electric & Power Company cc:
Mr. J. Jeffrey Lunsford County Administrator, Louisa County P.O. Box 160 Louisa, Virginia 23093 Michael W. Maupin, Esq.
Hunton and Williams Riverfront Plaza, East Tower 951 E. Byrd Street Richmond, Virginia 23219 Dr. W. T. Lough Virginia State Corporation Commission Division of Energy Regulation P.O. Box 1197 Richmond, Virginia 23209 01~ Dominion Electric Cooperative 4201 Dominion Boulevard Glen Allen, Virginia 23060
- M. L. Bowlingi Mahager Nuclear Licensing and Operations Support Virginia Electric and-Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, Virginia 23060 Office of the Attorney General Commonwealth of Virginia 900 East Main Street Richmond, Virginia 23219 Senior Resident Inspector North Anna Power Stati~n U.S. Nuclear Regulatory Commission 1024 Haley Drive Mineral, Virginia 23117 Senior Resident Inspector Surry Power Station U.S. Nuclear Regulatory Commission 5850 Hog Island Road Surry, Virginia 23883 Robert 8. Strobe, M.D., M.P.H.
State Health Commissioner Office of the Commissioner Virginia Department of Health P.O.. Box 2448 Richmond, Virginia 23218
- Regional Administrator, Region II U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 W. R. Matthews, Manager North Anna Power Station P.O. Box 402 Mineral, Virginia 23117 J. P. O'Hanlon Senior Vice President - Nuclear Virginia Electric and Power Co.
Innsbrook Technical Center 5000 Dominion Boulevard Glen Alleh, Virgihia 23060 Mr. David Christian, Manager Surry Power Station Virginia Electric and Power Company 5570 Hog Island Road Surry, Virginia 23883 Chairman Board of Supervisors of*Surry County Surry County Courth.ouse Surry, Virginia 23683 Mr. Al Belisle U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303