ML14181A448
| ML14181A448 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 07/07/1999 |
| From: | Subbaratnam R NRC (Affiliation Not Assigned) |
| To: | Young D CAROLINA POWER & LIGHT CO. |
| References | |
| GL-92-01, GL-92-1, TAC-MA0566, TAC-MA566, NUDOCS 9907150068 | |
| Download: ML14181A448 (4) | |
Text
UNITED STATE NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 o
July 7, 1999 Mr. D: E. Young, Vice President Carolina Power & Light Company H. B. Robinson Steam Electric Plant, Unit No. 2 3581 West Entrance Road Hartsville, South Carolina 29550
SUBJECT:
CLOSURE OF TAC NO. MA0566 - RESPONSE TO THE REQUESTS FOR ADDITIONAL INFORMATION TO GENERIC LETTER 92-01, REVISION 1, SUPPLEMENT 1, "REACTOR VESSEL STRUCTURAL INTEGRITY," FOR THE H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2
Dear Mr. Young:
On May 19, 1995, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter 92-01, Revision 1, Supplement 1 (GL 92-01, Rev. 1, Supp. 1), "Reactor Vessel Structural Integrity," to holders of nuclear operating licenses. In issuing the GL, the staff required addressees of the GL to:
(1) identify, collect and report any new data pertinent to the analysis of structural integrity of the reactor pressure vessels (RPVs) at their nuclear plants, and (2) assess the impact of that data on their RPV integrity analyses relative to the requirements of Sections 50.60 and 50.61 to Part 50 of Title 10 of the Code of Federal Regulations (10 CFR 50.60 and 10 CFR 50.61), and to the requirements of Appendices G and H to Part 50 of Title 10 of the Code of Federal Regulations (Appendices G and H to 10 CFR Part 50).
On August 17, 1995, you submitted your initial response to GL 92-01, Rev. 1, Supp. 1. and provided the requested information relative the structural integrity assessment for the H. B.
Robinson Steam Electric Plant (HBRSEP), Unit No. 2. The staff evaluated your response to GL 92-01, Rev. 1, Supp. 1, and provided its conclusion relative to your response on December 17, 1996. However, since the time of the staffs closure letter, the Combustion Engineering (CE) Owners Group and the Babcock and Wilcox (B&W) Owners Group have each submitted additional data regarding the alloying chemistries of beltline welds in CE and B&W fabricated vessels. The additional alloying data were submitted in Topical Reports CE NPSD 1039, Revision 2, CE NPSD-1119, Revision 1, for CE-fabricated RPV welds, and BAW-2325, Revision 1, for B&W-fabricated RPV welds. As a result of the efforts by CE and B&W, the staff determined that additional information was necessary relative to the structural integrity assessments for your plants. On April 14, 1998, the staff issued a request for additional information (RAI) in regard to the alloying chemistries of beltline welds, your assessment of surveillance data for your facility, pressure-temperature (P-T) limits, and pressurized thermal shock (PTS) assessment for HBRSEP, Unit No. 2. In general, with respect to the contents of the RAI, the staff requested that you reassess the alloying chemistries for the beltline welds and RPV surveillance welds relative to the chemistries provided in the applicable topical report, and 9907150068 990707 PDR ADOCK 05000261 PPDR
- 1y 7, 1999 provide the impact of any changes to the best-estimate chemistries for your beltline RPV welds on the structural integrity assessments for your facility relative to the requirements of 10 CFR 50.60, 10 CFR 50.61, and Appendices G and H to 10 CFR Part 50, as applicable to the licensing basis for your plant.
You provided your response to the staffs RAI for HBRSEP, Unit No. 2 on July 23, 1998. As a result of the staffs review of your responses to GL 92-01, Revision 1, GL 92-01, Rev. 1, Supp. 1, and the Supp. 1 RAI, the staff has revised the information in the Reactor Vessel Integrity Database (RVID) and is releasing it as RVID Version 2.
The new database diskettes are posted on the World-Wide Web at a location which is linked to the NRC home page (http://www.nrc.gov/NRR/RVID/index.htmi). We recommend that you review this information. If the staff does not receive comments by September 1, 1999, we will assume that the data entered into the RVID are acceptable for your plant. No additional information is necessary with regard to the structural integrity assessments. Future submittals on P-T limits, PTS (only applicable to PWRs), or upper shelf energy (USE) should reference the most current information.
This closes the staffs efforts in regard to TAC No. MA0566. The staff appreciates your efforts in regard to this matter.
Sincerely, Original signed by:
Ram Subbaratnam, Project Manager, Section 2 Project Directorate 11 Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-261 cc: See next page DISTRIBUTION:
CDbketEile JZwolinski/SBlack KWichman, MCEB PUBLIC BBonser, Region II ALee, EMCB/DE PDII Reading File ACRS OGC DOCUMENT NAME:G:\\PDIl-2\\Robinson\\mO566close.wpd To receive a copy of this document, indicate in the box: "C" = Copy without enclosures "E" = Copy with enclosures "N" = No copy OFFICE PDIIS2:PM PDIIS2:LA 1C PDIIS2_
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NAME Ram Subbar tnam EDunningtonfsD SPeterson DATE 7/
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/99 1/ 7 /99 OFFICIAL RECORD COPY
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-2 provide the impact of any changes to the best-estimate chemistries for your beltline RPV welds on the structural integrity assessments for your facility relative to the requirements of 10 CFR 50.60, 10 CFR 50.61, and Appendices G and H to 10 CFR Part 50, as applicable to the licensing basis for your plant.
You provided your response to the staffs RAI for HBRSEP, Unit No. 2 on July 23, 1998. As a result of the staffs review of your responses to GL 92-01, Revision 1, GL 92-01, Rev. 1, Supp. 1, and the Supp. 1 RAI, the staff has revised the information in the Reactor Vessel Integrity Database (RVID) and is releasing it as RVID Version 2.
The new database diskettes are posted on the World-Wide Web at a location which is linked to the NRC home page (http://www.nrc.gov/NRR/RVID/index.html). We recommend that you review this information. If the staff does not receive comments by September 1, 1999, we will assume that the data entered into the RVID are acceptable for your plant. No additional information is necessary with regard to the structural integrity assessments. Future submittals on P-T limits, PTS (only applicable to PWRs), or upper shelf energy (USE) should reference the most current information.
This closes the staffs efforts in regard to TAC No. MA0566. The staff appreciates your efforts in regard to this matter.
Sincerely, Ram Subbaratnam, Project Manager, 2
Project Directorate 11 Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-261 cc: See next page
Mr. D. E. Young P. B. Robinson Steam Electric Carolina Power & Light Company Plant, Unit No. 2 cc:
Mr. William D. Johnson Mr. Mel Fry, Director Vice President and Corporate Secretary N.C. Department of Environment Carolina Power & Light Company and Natural Resources Post Office Box 1551 Division of Radiation Protection Raleigh, North Carolina 27602 3825 Barrett Dr.
Raleigh, North Carolina 27609-7721 Ms. Karen E. Long Assistant Attorney General Mr. Robert P. Gruber State of North Carolina Executive Director Post Office Box 629 Public Staff - NCUC Raleigh, North Carolina 27602 Post Office Box 29520 Raleigh, North Carolina 27626-0520 U.S. Nuclear Regulatory Commission Resident Inspector's Office Mr. Virgil R. Autry, Director H. B. Robinson Steam Electric Plant South Carolina Department of Health 2112 Old Camden Road Bureau of Land & Waste Management Hartsville, South Carolina 29550 Division of Radioactive Waste Management 2600 Bull Street Columbia, South Carolina 29201 Mr. Terry C. Morton Manager Performance Evaluation and Mr. J. W. Moyer Regulatory'Affairs CPB 7 Director of Site Operations Carolina Power & Light Company Carolina Power & Light Company Post Office Box 1551 H. B. Robinson Steam Electric Plant Raleigh, North Carolina 27602-1551 Unit No. 2 3581 West Entrance Road Mr. John H. O'Neill, Jr.
Hartsville, South Carolina 29550 Shaw, Pittman, Potts & Trowbridge 2300 N Street, NW.
Public Service Commission Washington, DC 20037-1128 State of South Carolina Post Office Drawer 11649 Columbia South Carolina 29211 Mr. R. L. Warden Manager - Regulatory Affairs Mr. H. K. Chernoff Carolina Power & Light Company Supervisor, Licensing/Regulatory Programs H. B. Robinson Steam Electric Plant, Carolina Power & Light Company Unit No. 2 H. B. Robinson Steam Electric Plant, 3581 West Entrance Road Unit No. 2 Hartsville, South Carolina 29550-0790 3581 West Entrance Road Hartsville, South Carolina 29550