ML14178A983
| ML14178A983 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 12/17/1996 |
| From: | Mozafari B NRC (Affiliation Not Assigned) |
| To: | Hinnant C CAROLINA POWER & LIGHT CO. |
| References | |
| GL-92-01, GL-92-1, TAC-M92724, NUDOCS 9612260114 | |
| Download: ML14178A983 (3) | |
Text
C pft REG&
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 December 17, 1996 Mr. C. S. Hinnant, Vice President Carolina Power & Light Company H. B. Robinson Steam Electric Plant, Unit No. 2 3581 West Entrance Road Hartsville, South Carolina 29550
SUBJECT:
CLOSEOUT FOR CAROLINA POWER & lIGHT COMPANY RESPONSE TO GENERIC LETTER 92-01, REVISION 1, SUPPLEMENT 1 FOR THE H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 (TAC NO. M92724)
Dear Mr. Hinnant:
On May 19, 1995, the NRC issued Generic Letter 92-01, Revision 1, Supplement 1 (GL 92-01, Rev. 1, Supp. 1), "Reactor Vessel Structural Integrity."
In GL 92-01, Rev. 1, Supp. 1, the NRC requested that nuclear licensees perform a review of their reactor pressure vessel structural integrity assessments in order "to identify, collect, and report any new data pertinent to [the]
analysis of [the] structural integrity of their reactor pressure vessels (RPVs) and to assess the impact of that data on their RPV integrity analyses relative to the requirements of Section 50.60 of Title 10 of the Code of Federal Regulations (10 CFR 50.60), 10 CFR 50.61, Appendices G and H to 10 CFR Part 50 (which encompass pressurized thermal shock (PTS) and upper shelf energy (USE) evaluations), and any potential impact on low temperature overpressure (LTOP) limits or pressure-temperature (P-T) limits."
More specifically, in GL 92-01, Rev. 1, Supp. 1, the NRC requested that addressees provide the following information in their responses:
(1) a description of those actions taken or planned to locate all data relevant to the determination of RPV integrity, or an explanation of why the existing data base is considered complete as previously submitted; (2) an assessment of any change in best-estimate chemistry based on consideration of all relevant data; (3) a determination of the need for the use of the ratio procedure in accordance with the established Position 2.1 of Regulatory Guide 1.99, Revision 2, for those licensees that use surveillance data to provide a basis for the RPV integrity evaluation; and (4) a written report providing any newly acquired data as specified above tA and (1) the results of any necessary revisions to the evaluations of RPV integrity in accordance with the requirements of 10 CFR 50.60, 10 CFR 50.61, Appendices G and H to 10 CFR Part 50, and any potential impact of the LTOP and P-T limits in the technical specificatio 'ns, or 1
(2) a certification that previously submitted evaluations remain valid.
6 1 2
)114 NRC FI.E CE PDR ADOCK 05000261 P
-2 Revised evaluations and certifications were to include consideration of Position 2.1 of Regulatory Guide 1.99, Revision 2, as applicable, and any new data. The information in Reporting Item (1) was to be submitted within 90 days of the issuance of the GL. The information in Reporting Items (2) -
(4) was to be submitted within 6 months of the issuance of the GL.
The NRC staff has noted that Carolina Power & Light Company (the licensee) submitted the information requested in Reporting Item (1) on August 17, 1995, and requested in Reporting Items (2) -
(4) on November 20, 1995. The licensee has provided new RPV data to the staff or has revised the RPV Data Sheets for the H. B. Robinson Steam Electric Plant, Unit No. 2 (HBR).
However, the licensee has indicated in its submittal to.Generic Letter 92-01, Revision 1, Supplement 1, that the revised data does not impact the.LTOP and P-T Limits defined in the HBR Technical Specifications nor compliance with the Pressurized Thermal Shock-and Upper Shelf Energy regulations (10 CFR 50.61 and 10 CFR Part 50, Appendices G and H, respectively).. The licensee had therefore indicated that the previously submitted evaluations for HBR remain valid.
Since the licensee has provided the requested information, the NRC staff is, therefore, closing TAC No. M92724 in regard to HBR. However, the NRC staff will review the new RPV data at a later date. Furthermore, the NRC staff has also noted that the Owners Groups' Reactor Vessel Working Groups activities to establish a comprehensiveRPV information data base could yield additional data relevant to your plant?. These activities are expected to be completed by the Summer of 1997. The staff will open a plant-specific TAC number pending its review of the revised RPV' data and any additional data that are provided as a result of the Owners Groups' activities.. We request that you provide us with the results of the ongoing Owners Groups' RPV integrity programs relative to your plant.
Thank you for y6ur cooperation.
Sincerely, (Original Signed By)
Brenda Mozafari, Project Manager SProject Directorate II-1 Division of Reactor Projects.- I/II Office. of Nuclear Reactor Regulation Docket No. 50-261 Distribution "Db~tF'il-e:-
OGC cc:
See nexf page PUBLIC PDII-1 RF S. Varga J. Zwolinski ACRS D. McDonald FILENAME -
G: ROBINSO\\ROB92724.LTR OFFICE D I-1 LA:PDII-1 PD:PDII-t§ NAME Mozafari Dunningt M
DATE 12/11/96 12/17/96 12/1/96 COPY Yes No (fe /No Yes OFFICIAL R D COPY
Mr. C. S. Hinnant H. B. Robinson Steam Electric Carolina Power & Light Company Plant, Unit No. 2 cc:
Mr. William D. Johnson Mr. Dayne H. Brown, Director Vice President and Senior Counsel Department of Environmental, Carolina Power & Light Company Health and Natural Resources Post Office Box 1551 Division of Radiation Protection Raleigh, North Carolina 27602 Post Office Box 27687 Raleigh, North Carolina 27611-7687 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. Max Batavia, Chief H. B. Robinson Steam Electric Plant South Carolina Department of Health 2112 Old Camden Road Bureau of Radiological Health Hartsville, South Carolina 29550 and Environmental Control 2600 Bull Street Regional Administrator, Region II Columbia, South Carolina 29201 U.S. Nuclear Regulatory Commission 101 Marietta St., N.W., Ste. 2900 Mr. J. Cowan Atlanta, Georgia 30323 Vice President Nuclear-Services and Environmental Mr. Dale E. Young Support Department Plant General Manager Carolina Power & Light Company Carolina Power & Light Company Post Office Box 1551 - Mail 0HS7 H. B. Robinson Steam Electric Plant Raleigh, North Carolina 27602 3581 West Entrance Road Hartsville, South Carolina 29550 Mr. Milton Shymlock U. S. Nuclear Regulatory Commission Public Service Commission 101 Marietta Street, N.W. Suite 2900 State of South Carolina Atlanta, Ga. 3023-0199 Post Office Drawer 11649 Columbia, South Carolina 29211 Mr. R. M. Krich Manager - Regulatory Affairs Carolina Power & Light Company H. B. Robinson Steam Electric Plant, Unit No. 2 3581 West Entrance Road Hartsville, South Carolina 29550