ML022350342

Request for Additional Information, Amendment to Revise Pressure Temperature Curve Limits

ML022350342
Person / Time
Site:	Brunswick
Issue date:	08/23/2002
From:	Mozafari B NRC/NRR/DLPM/LPD2
To:	Keenan J Carolina Power & Light Co
mozafari B, NRR/DLPM, 415-2020
References
TAC MB5579, TAC MB5580
Download: ML022350342 (5)

Text

August 23, 2002 Mr. J. S. Keenan Vice President Brunswick Steam Electric Plant Carolina Power & Light Company Post Office Box 10429 Southport, North Carolina 28461

SUBJECT:

BRUNSWICK STEAM ELECTRIC PLANT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION, AMENDMENT TO REVISE PRESSURE TEMPERATURE CURVE LIMITS (TAC NOS. MB5579 AND MB5580)

Dear Mr. Keenan:

On June 26, 2002, Carolina Power & Light Company (CP&L), the licensee for the Brunswick Steam Electric Plant, Units 1 and 2, submitted information and requested revision of the vessel pressure-temperature (P-T) curves. Preliminary review of the submitted information indicated that the code used in the calculation of the proposed vessel fluence was not an NRC staff-approved code. In a teleconference on August 15, 2002, with the licensee and Westinghouse (the CP&L fluence contractor), the licensee stated it was seeking a plant-specific code benchmarking. To this end the licensee will submit an analysis of the PCA activity dosimetry benchmark experiment, an analysis of the H. B. Robinson dosimetry, and analysis of the available surveillance capsule and ex-vessel dosimetry for the Brunswick plant.

Westinghouse, while it is eminently qualified in the analysis of PWR dosimetry, does not have demonstrated expertise in BWR dosimetry analysis. Considering the proposed benchmarking, the NRC staff finds that the only BWR-relevant analysis is the Brunswick surveillance capsule and ex-vessel dosimetry. Taking into account the peculiarities of BWR dosimetry, the NRC staff finds that Westinghouse, through the licensee, should propose additional BWR analysis for code benchmarking. Such suitable additional analysis would be the BWR standard problem in NUREG-6115 or a similar BWR benchmark quality problem. In addition, the NRC staff may perform an audit of the Westinghouse calculations.

The NRC staff has targeted June 2003 for completion of its review; however, without the requested information, further review will not be attempted. Therefore, timely response to this request for additional information (RAI) will expedite the NRC staffs completion of the P-T

J. Keenan curve review. Please provide your schedule for resolving this NRC staff concern within 30 days of the date of this letter. Should you have a need to discuss the RAI, please contact me at (301) 415-2020 or blm@nrc.gov.

Sincerely,

/RA/

Brenda L. Mozafari, Senior Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-325 and 50-324 cc: See next page

ML022350342 OFFICE PDII-2/PM PDII-2/LA DSSA/SRXB/SC PD-II-2/SC(A)

NAME BMozafari EDunnington FAkstulewicz KJabbour DATE 8/23/02 8/22/02 8/22/02 8/23/02 Mr. J. S. Keenan Brunswick Steam Electric Plant Carolina Power & Light Company Units 1 and 2 cc:

Mr. William D. Johnson Ms. Margaret A. Force Vice President and Corporate Secretary Assistant Attorney General Carolina Power & Light Company State of North Carolina Post Office Box 1551 Post Office Box 629 Raleigh, North Carolina 27602 Raleigh, North Carolina 27602 Mr. Donald E. Warren Mr. Robert P. Gruber Brunswick County Board of Commissioners Executive Director Post Office Box 249 Public Staff - NCUC Bolivia, North Carolina 28422 4326 Mail Service Center Raleigh, North Carolina 27699-4326 Resident Inspector U.S. Nuclear Regulatory Commission Mr. C. J. Gannon 8470 River Road Director - Site Operations Southport, North Carolina 28461 Carolina Power & Light Company Brunswick Steam Electric Plant Mr. John H. ONeill, Jr. Post Office Box 10429 Shaw, Pittman, Potts & Trowbridge Southport, North Carolina 28461 2300 N Street, NW.

Washington, DC 20037-1128 Mr. Norman R. Holden, Mayor City of Southport Ms. Beverly Hall, Acting Director 201 East Moore Street Division of Radiation Protection Southport, North Carolina 28461 N.C. Department of Environment and Natural Resources Mr. Dan E. Summers 3825 Barrett Dr. Emergency Management Coordinator Raleigh, North Carolina 27609-7721 New Hanover County Department of Emergency Management Mr. W. C. Noll Post Office Box 1525 Plant Manager Wilmington, North Carolina 28402 Carolina Power & Light Company Brunswick Steam Electric Plant Mr. Terry C. Morton Post Office Box 10429 Manager Southport, North Carolina 28461 Performance Evaluation and Regulatory Affairs CPB 7 Public Service Commission Carolina Power & Light Company State of South Carolina Post Office Box 1551 Post Office Drawer 11649 Raleigh, North Carolina 27602-1551 Columbia, South Carolina 29211 Mr. Edward T. ONeil Manager - Regulatory Affairs Carolina Power & Light Company Brunswick Steam Electric Plant Post Office Box 10429 Southport, NC 28461