ML18059B091
| ML18059B091 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 07/12/1994 |
| From: | Hsia A Office of Nuclear Reactor Regulation |
| To: | Fenech R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| Shared Package | |
| ML18059B092 | List: |
| References | |
| TAC-M83227, NUDOCS 9407180224 | |
| Download: ML18059B091 (3) | |
Text
'Dock~t No. 50-255 Mr. Robert A. Fenech Vice President, Nuclear Operations Consumers Power Company Palisades Plant 27780 Blue Star Memorial Highway Covert, Michigan 49043
Dear Mr. Fenech:
July 12, 199~
SUBJECT:
PALISADES PLANT - INTERIM SAFETY EVALUATION OF PRESSURIZED THERMAL SHOCK (PTS) AND UPPER-SHELF ENERGY (USE) ANALYSES (TAC NO. M83227)
By letters dated August 31, 1990, and February 23, 1994, you submitted for staff review your evaluation of the effect of neutron radiation on the PTS screening criteria and the Charpy USE for the Palisades reactor vessel. This latest submittal described the revised best estimate weld material chemistry, using a weighted average method, and included data from H. B. Robinson and Oyster Creek surveillance welds.
The staff has completed its evaluation of the above submitted information and the results from the evaluation are documented in the enclosed Interim Safety Evaluation.
This Interim Safety Evaluation supersedes the Interim Safety Evaluation issued on April 10, 1992.
Based on the review, the staff concludes that the Palisades reactor vessel will reach the PTS screening criteria in the year 2004, and the USE will be at least 50 ft-lb at the expiration of the Palisades license in 2007.
You have demonstrated good initiative in implementing a program to acquire additional data using the retired steam generators which have weld metal that was fabricated using the same heat of weld wire as the limiting weld in the Palisades reactor vessel beltline. This program will provide additional confidence in the Palisades reactor vessel PTS evaluation.
The conclusion with respect to the PTS screening criteria could change depending on the test results from the retired steam generators. These test results are expected to be available by November 1994.
,,-- ---94o7iso224 6~866~55 PDR ADOCK PDR p
Enclosure:
Interim Safety Evaluation cc w/enclosure:
See next page OFFICE NAME OFFICIAL RECORD COPY Sincerely, Original signed by Anthony H. Hsia, Project Manager Prpject Directorate III-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation
Mr. Robert A.* Fenech Consumers Power Company cc:
M~. Thomas J~ Palmisano Plant General *Manager Palisades* Plant 27780 Blue Star Memorial Highway Covert, MI 49043 Mr. *David W.
Rog~rs Plant Safety and Licensing Director Palisades Plant 27780 Blue Star Memorial Highway Covert, Michigan 49043 M. I. Miller, Esquire Sidley & Austin 54th Floor One First National Plaza Chicago, Illinois 60603 Mr. Thomas A. McNish, Secretary Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Judd L. Bacon, Esquire Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, Illinois 60532-4351 Jerry Sarno Township Supervisor Covert Township 36197 M-140 Highway Covert, Michigan 49043 Office of the Governor Room 1 - Capitol Building Lansing, Michigan 48913 U.S. Nuclear Regulatory Commission Resident Inspector Office Palisades Plant 27782 Blue Star Memorial Highway Covert, Michigan 49043 Palisades Plant Nuclear Facilities and Environmental Monitoring Section Office.
Division of Radiologic~l Health Department of Public Hea1th 3423 N. Logan Street P. 0. Box 30195 Lansing, Michigan 48909 Gerald Charnoff, Esquire Shaw, Pittman, Potts and Trowbridge 2300 N Street, N. W.
Washington DC 20037 Alora Davis Commitment Tracking System Coordinator Palisades Plant Consumers Power Company 27780 Blue Star Memorial Highway Covert, Michigan 49043-9530 April 1994
DISTRIBUTION FOR INTERIM SAFETY EVALUATION:
Docket File NRC & LPDRs PD31 Rdg File JRoe JZwolinski LMarsh AHsia CJamerson KWichman, 0-7D4 JStrosnider, 0-7D4 BEll i ot, 0-7D4 OGC ACRS (10)
BMcCabe, 0-17G21 MParker, Palisades WKropp, RII I LMiller, RIII DATED:
July 12, 1994