ML051460431
| ML051460431 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 05/20/2005 |
| From: | Marinos E NRC/NRR/DLPM/LPD2 |
| To: | Christian D Virginia Electric & Power Co (VEPCO) |
| Monarques, S R, NRR/DLPM, 415-1544 | |
| References | |
| TAC MC6705 | |
| Download: ML051460431 (4) | |
Text
May 20, 2005 Mr. David A. Christian Sr. Vice President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.
Glen Allen, Virginia 23060-6711
SUBJECT:
SURRY POWER STATION, UNIT 2 - CORRECTION LETTER FOR RELIEF REQUEST SR-36 (TAC NO. MC6705)
Dear Mr. Christian:
By letter dated May 13, 2004, as supplemented by letter dated August 10, 2004, Virginia Electric and Power Company (VEPCO) requested relief from certain American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI requirements for the third 10-year inservice inspection (ISI) interval at Surry Power Station, Unit 2. In its submittal, VEPCO requested approval of Relief Request SR-36 in order to implement updated examination methodologies when performing reactor pressure vessel weld examinations.
Subsequently, on February 1, 2005, the Nuclear Regulatory Commission (NRC) staff issued Relief Request SR-36 for the third 10-year ISI at Surry, Unit 2.
In its letter dated April 11, 2005, VEPCO informed the NRC staff that the safety evaluation dated February 1, 2005, erroneously contained the weld number designations for Surry, Unit 1 rather than the Surry, Unit 2 weld numbers. As such, VEPCO requested a correction letter be issued to Relief Request SR-36.
The NRC staff has reviewed VEPCOs request and agrees that the administrative errors were inadvertently made. The corrected page of the safety evaluation is enclosed. The NRC staff notes that the weld designation numbers listed in the safety evaluation for Relief Request SR-36 were obtained from VEPCOs submittal dated August 10, 2004.
Sincerely,
/RA SPeters for/
Evangelos C. Marinos, Chief, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-281
Enclosure:
As stated cc w/encl: See next page
May 20, 2005 Mr. David A. Christian Sr. Vice President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.
Glen Allen, Virginia 23060-6711
SUBJECT:
SURRY POWER STATION, UNIT 2 - CORRECTION LETTER FOR RELIEF REQUEST SR-36 (TAC NO. MC6705)
Dear Mr. Christian:
By letter dated May 13, 2004, as supplemented by letter dated August 10, 2004, Virginia Electric and Power Company (VEPCO) requested relief from certain American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI requirements for the third 10-year inservice inspection (ISI) interval at Surry Power Station, Unit 2. In its submittal, VEPCO requested approval of Relief Request SR-36 in order to implement updated examination methodologies when performing reactor pressure vessel weld examinations.
Subsequently, on February 1, 2005, the Nuclear Regulatory Commission (NRC) staff issued Relief Request SR-36 for the third 10-year ISI at Surry, Unit 2.
In its letter dated April 11, 2005, VEPCO informed the NRC staff that the safety evaluation dated February 1, 2005, erroneously contained the weld number designations for Surry, Unit 1 rather than the Surry, Unit 2 weld numbers. As such, VEPCO requested a correction letter be issued to Relief Request SR-36.
The NRC staff has reviewed VEPCOs request and agrees that the administrative errors were inadvertently made. The corrected page of the safety evaluation is enclosed. The NRC staff notes that the weld designation numbers listed in the safety evaluation for Relief Request SR-36 were obtained from VEPCOs submittal dated August 10, 2004.
Sincerely,
/RA SPeters for/
Evangelos C. Marinos, Chief, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-281
Enclosure:
As stated cc w/encl: See next page Distribution PUBLIC EDunnington KLandis, RII EMarinos EHackett SMonarque PDII-1 R/F ACRS TChan OGC DLPM DPR BFu TJKim ADAMS ACCESSION NO.: ML051460431 NRR-028 OFFICE PM/PDII-1 LA/PDII-2 SC/EMCB SC/PDII-1 NAME SMonarque EDunnington TChan EMarinos DATE 5/ 18 / 05 5/ 18/ 05 5/ 18/ 05 5/ 20/ 05 OFFICIAL RECORD COPY
Inservice Inspection of Nuclear Power Plant Components, to the extent practical within the limitations of design, geometry, and materials of construction of the components. The regulations require that inservice examination of components and system pressure tests conducted during the first 10-year interval and subsequent intervals comply with the requirements in the latest edition and addenda of Section XI of the ASME Code incorporated by reference in 10 CFR 50.55a(b) on the date 12 months prior to the start of the 120-month interval, subject to the limitations and modifications listed therein. The components (including supports) may meet the requirements set forth in subsequent editions and addenda of the ASME Code incorporated by reference in 10 CFR 50.55a(b) subject to the limitations and modifications listed therein and subject to Commission approval. The applicable ASME Code of record for the third 10-year ISI at Surry, Unit 2 is the 1989 Edition of the ASME Section XI Code. The third 10-year ISI interval ended on May 9, 2004.
3.0 SAFETY EVALUATION - Relief Request SR-036, Revision 1 3.1 Components for Which Relief Is Requested Pressure-retaining dissimilar metal piping welds subject to examinations using procedures, personnel, and equipment qualified to the 1995 Edition with 1996 Addenda of the ASME Code,Section XI, Appendix VIII, Supplement 10, Qualification Requirements for Dissimilar Metal Piping Welds.
ASME Section XI, Class I, Examination Category R-A, Risk-Informed Piping Examinations, Item R1.11, Elements Subject to Thermal Fatigue (formerly B-F, Pressure-Retaining Dissimilar Metal Welds in Vessel Nozzles, Item B5.10, nominal pipe size (NPS) 4 or Larger Nozzle-to-Safe End Butt Welds) at Surry, Unit 2 subject to examination using procedures, personnel, and equipment qualified to the 1995 Edition with 1996 Addenda of the ASME Code,Section XI, Appendix VIII, Supplement 10 criteria. The specific welds involved are listed in the table below.
Weld No. ID Wall Base Metal Weld Metal Thickness 29"-RC-301-2501 R-1-01DM 29" 2.70" SA508 Class 2/ austenitic (loop A hot leg) ASTM A-376 TP 316 stainless steel 27-1/2"-RC-303-2501R 27-1/2" 2.56" SA508 Class 2/ austenitic 17DM (loop A cold leg) ASTM A351 CF8M stainless steel 29"-RC-304-2501R-1-01DM 29" 2.70" SA508 Class 2/ austenitic (loop B hot leg) ASTM A-376 TP 316 stainless steel 27-1/2"-RC-306-2501R- 27-1/2" 2.56" SA508 Class 2/ austenitic 1-17DM (loop B cold leg) SA351 CF8M stainless steel 29"-RC-307-2501R-1-01DM 29" 2.70" SA508 Class 2/ austenitic (loop C hot leg) ASTM A-376 TP 316 stainless steel 27-1/2"-RC-309-2501R 27-1/2" 2.56" SA508 Class 2/ austenitic 17DM (loop C cold leg) SA351 CF8M stainless steel
Surry Power Station, Units 1 & 2 cc:
Ms. Lillian M. Cuoco, Esq. Office of the Attorney General Senior Counsel Commonwealth of Virginia Dominion Resources Services, Inc. 900 East Main Street Building 475, 5th Floor Richmond, Virginia 23219 Rope Ferry Road Waterford, Connecticut 06385 Mr. Chris L. Funderburk, Director Nuclear Licensing & Operations Support Mr. Donald E. Jernigan Dominion Resources Services, Inc.
Site Vice President Innsbrook Technical Center Surry Power Station 5000 Dominion Blvd.
Virginia Electric and Power Company Glen Allen, Virginia 23060-6711 5570 Hog Island Road Surry, Virginia 23883-0315 Senior Resident Inspector Surry Power Station U. S. Nuclear Regulatory Commission 5850 Hog Island Road Surry, Virginia 23883 Chairman Board of Supervisors of Surry County Surry County Courthouse Surry, Virginia 23683 Dr. W. T. Lough Virginia State Corporation Commission Division of Energy Regulation Post Office Box 1197 Richmond, Virginia 23218 Dr. Robert B. Stroube, MD, MPH State Health Commissioner Office of the Commissioner Virginia Department of Health Post Office Box 2448 Richmond, Virginia 23218