ML17222A655
| ML17222A655 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 01/12/1989 |
| From: | Norris J Office of Nuclear Reactor Regulation |
| To: | Conway W FLORIDA POWER & LIGHT CO. |
| Shared Package | |
| ML17222A656 | List: |
| References | |
| RTR-REGGD-01.099, RTR-REGGD-1.099 TAC-68382, NUDOCS 8901190372 | |
| Download: ML17222A655 (3) | |
Text
January 12, I Docket No. 50-389 Mr.
M.
F.
Conway Senior Vice President-Nuclear Nuclear Energy Department Florida Power and Light Company Post Office Box 14000 Juno
- Beach, Florida 33408-0420 DISTRIBUTION
- t. Docket File )
NRC 8 Local PDRs PDII-2 Rdg.
SVar ga GLainas DMiller JNor ris OGC EJordan BGrimes ACRS(10)
Dear Mr. Conway:
SUBJECT:
ST.
LUCIE UNIT 2 " PROPOSED METHODOLOGY FOR ADJUSTED REFERENCE TEMPERATURE CALCULATIONS (TAC NO. 68382)
On June 14, 1988, the Commission issued Amendment No.
31 for the St.
Lucie Plant, Unit No. 2.
The amendment dealt with reactor coolant system pressure/
temperature limits and low temperature overpressure protection.
One of the open items associated with the amendment was a staff review of a Combustion Engineering Report entitled "Methodology for Adjusted Reference Temperature Calculations."
The staff has completed its review of the proposed methodology.
The proposed methodology is not acceptable for use for two major reasons.
The calculations of fluence and RT D
at the 1/4t and especially at the 3/4t locations in the vessel wall do no( account for the effect of changes in neutron energy spectrum with depth in the wall.
In addition, inadequate justification was given for reducing the margin in hRTN based on having plant surveillance data that were credible in all respects, eNept the controlling material was not represented in the capsule.
The methodology did not discuss how well the surveillance results met the criteria for credibility, and it did not compare the surveillance data with the predictions of Regulatory Guide 1.99, Revision 2
for the copper and nickel contents of the surveillance material.
- Instead, the methodology reported surveillance data from other reactors, which was not relevant to this issue.
The details of the staff evaluation can be found in the enclosed Safety Evaluation.
This completes the staff effort in reviewing the subject methodology.
Sincerely, Original signed by
Enclosure:
As stated Jan A. Norris, Senior Project Manager Project Directorate II-2 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation cc w/enclosure:
See next page
[TAC 68382]
L:
I-2 0 'er 1/
/89 I-2 J
o s:bd 1
9 D
~
H er ow 1/ I /89 390ii90372 390ii2 PDR ADOCK 05000339 P
1 A
i fp~
~
~
Mr.
W.
F.
Conway Florida Power 8 Light Company St.
Lucie Plant CC:
Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tallahassee, Florida 32304 Resident Inspector c/o U.S.
NRC 7585 S.
Hwy AlA Jensen
- Beach, Florida 34957 State Planning 8 Development Clearinghouse Office of Planning 8 Budget Executive Office of the Governor The Capitol Building Tallahassee, Florida 32301 Harold F. Reis, Esq.
Newman 6 Holtzinger 1615 L Street, N.W.
Washington, DC 20036 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 2600 Blair Stone Road Tallahassee, Florida 32301 Mr. Weldon B. Lewis, County Administrator St.
Lucie County 2300 Virginia Avenue, Room 104 Fort Pierce, Florida 33450 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations Combustion Engineering, Inc.
12300 Twinbrook Parkway, Suite 3300 Rockville, Maryland 20852 Jacob Daniel Nash Office of Radiation Control Department of Health and Rehabilitative Services 1317 Winewood Blvd.
Tallahassee, Florida 32399-0700 Regional Administrator, Region II U.S.
Nuclear Regulatory Commission 101 Marietta Street N.W., Suite 2900 Atlanta, Georgia 30323 Campbell Rich 4626 S.E. Pilot Avenue
- Stuart, Florida 34997