ML18096B311
| ML18096B311 | |
| Person / Time | |
|---|---|
| Site: | Salem, Hope Creek  |
| Issue date: | 02/25/1993 |
| From: | Miltenberger S Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NLR-N93007, NUDOCS 9303050055 | |
| Download: ML18096B311 (2) | |
Text
L_
Public Service Electric and Gas Company Steven E. Miltenberger Public Service Electric and Gas Company P.O. Box 236, Hancocks Bridge, NJ 08038 609-339-1100 Vice President and Chief Nuclear Officer FEB 2 5 1993 NLR-N93007 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Gentlemen:
EROSION/CORROSION MONITORING PROGRAM SALEM AND HOPE CREEK GENERATING STATIONS DOCKET NOS. 50-272, 50-311 AND 50-354 On June 25, 1992 PSE&G management personnel met with NRC staff memb~rs to provide information concerning the Salem Erosion/Corrosion monitoring program.
During this meeting PSE&G committed to only replace, and not repair, piping that had experienced wall thinning due to erosion/corrosion to the extent that it was either presently below the design code minimum wall thickness or was projected to be below minimum wall thickness by the end of the next operating cycle.
This commitment was documented in PSE&G internal meeting minutes and NRC meeting minutes sent to PSE&G by letter dated July 10, 1992.
PSE&G met this commitment and replaced all such piping during the Salem Unit 1 and 2 outages in July 1992.' Since then PSE&G has significantly upgraded and improved its Erosion/Corrosion monitoring program.
The strength of the upgraded program was independently confirmed during a two day review by EPRI personnel and through a more in-depth review conducted by a third party engineering firm.
Personnel from both organizations were knowledgeable and experienced in erosion/corrosion monitoring programs.
Based on our upgraded program, PSE&G believes it will be appropriate in certain instances to consider an ASME code repair of eroded/corroded piping instead of replacement.
For example, during future Salem and Hope Creek refueling outages, PSE&G plans to consider repairing large bore eroded/corroded piping with a weld buildup on the internal pipe diameter.where.
accessible.
Any such repairs will be performed in accordance with the PSE&G Nuclear Department Repair Program Manual and, for ASME Class I, II or III piping, shall be in compliance with ASME XI Article IWA-4000 or ASME Code Cases which have*been approved for use by the NRC.
04"0C8 9303050055 930225 - --*
PDR ADOCK 05000272 P
~\\Jo~
"" __./
Document Control Desk NLR-N93007 2
FEB 2 5 1993 This commitment change was discussed with Mr. Jim Stone by telephone on December 16, 1992.
More detailed discussions followed with NRC staff members during a PSE&G Erosion/Corrosion program status meeting held at the NRC Rockville off ice on February 11, 1993.
In this meeting general NRC concurrence was expressed with this revised approach.
As indicated during the above previous conversations, PSE&G plans to use this revised approach in the upcoming Salem Unit 2 refueling outage planned to begin in March 1993.
If you have any further questions, please do not hesitate to contact us.
Sincerely,
~Z/ltldr c
Mr. T. T. Martin, Administrator - Region I U. s. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Mr. J. Stone, Licensing Project Manager U. s. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Rockville, MD 20852 Mr. T. P. Johnson (S05)
USNRC Senior Resident Inspector Mr. K. Tosch, Chief NJ Department of Environmental Protection Division of Environmental Quality Bureau of Nuclear Engineering CN 415 Trenton, NJ 08625