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2 WASHINGTON, D. C. 20655 March 5, 1993 Docket Nos. 50-335 I
and 50-389 Mr. J. H. Goldberg President - Nuclear Division Florida Power and Light Company P.O. Box 14000 Juno Beach, Florida 33408-0420
Dear Mr. Goldberg:
SUBJECT:
ST. LUCIE UNITS 1 AND 2 - APPLICATION OF LEAK-BEFORE-BREAK TECHNOLOGY TO REACTOR COOLANT SYSTEM PIPING - TAC NOS. M84560 AND M84561 By letter dated August 26, 1992, Florida Power and Light Company (FPL) proposed to eliminate the dynamic effects associated with high energy pipe rupture in the reactor coolant system piping from the licensing and design bases of St. Lucie Units 1 and 2 by the application of leak-before-break (LBB) technology. This change to the licensing and design bases is permitted by revised General Criterion 4 of Appendix A to 10 CFR 50.
On October 30, 1990, the NRC accepted Topical Report CEN-367, " Leak-Before-Break Evaluation of Primary Loop Piping in Combustion Engineering Designed Nuclear Steam Supply Systems," which was submitted for staff review by Combustion Engineering Owners Group (CE0G) letter dated November 20, 1987.
FPL was a participating CE0G member and St. Lucie Units 1 and 2 were included i
in the bounding analyses submitted.
The staff has reviewed your submittal of August 26, 1992, and concluded that since the St. Lucie Units are bounded by the CEOG analyses and the leakage detection systems are capable of detecting the specified leakage rate, the dynamic effects associated with postulated pipe breaks in the primary coolant system piping can be excluded from the licensing and design bases of the St.
Lucie Units. Technical details of the staff's review are contained in the enclosed Safety Evaluation.
Based on the above, the staff grants the request to allow use of LBB technology as part of the bases of design engineering scheduled to begin in 0900%
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1 3-i J. H. Goldberg March 5, 1993 1993. This concludes our action on this issue and, accordingly, we are closing TAC Nos. M84560 and M84561.
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l Sincerely, (Original Signed By)
Jan A. Norris, Sr._ Project Manager Project Directorate II-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
Enclosure:
As stated cc: See next page i t ihution E
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PDII-2 Reading S. Varga G. Lainas H. Berkow J. Norberg
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DATE OFF1CIAL RECORD COPY FILENAME: A:\\SL84560.SER 4
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4 Mr. J. H. Goldberg Florida Power and Light Company St Lucie Plant cc:
1 Jack Shreve, Public Counsel Mr. Bill Passetti Office of the Public Counsel Office of Radiation Control i
c/o The Florida Legislature Department of Health and 111 West Madison Avenue, Room 812 Rehabilitative Services i
Tallahassee, Florida 32399-1400 1317 Winewood Blvd.
Tallahassee, Florida 32399-0700 Senior Resident Inspector St. Lucie Plant.
Regional Administrator, Ril i
U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission 7585 S. Hwy A1A 101 Marietta Street N.W., Suite 2900 Jensen Beach, Florida 33457 Atlanta, Georgia 30323 Mr. Robert G. Nave, Director Mr. R. E. Grazio Emergency Management Director, Nuclear Licensing Department of Community Affairs florida Power and Light Company 2740 Centerview Drive P.O. Box 14000 Tallahassee, Florida 32399-2100 Juno Beach, Florida 33408-0420 Harold F. Reis, Esq.
Newman & Holtzinger 1615 L Street, N.W.
Washington, DC 20036 j
John T. Butler, Esq.
Steel, Hector and Davis 4000 Southeast financial Center Miami, Florida 33131-2398 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 4
2600 Blair Stone Road Tallahassee, Florida 34982 i
Mr. James V. Chisolm, County Administrator St. Lucie County 2300 Virginia Avenue Fort Pierce, Florida 34982 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations ABB Combustion Engineering, Nuclear Power 12300 Twinbrook Parkway, Suite 330 Rockville, Maryland 20852