ML13324A819

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Forwards Rev 1 & Suppl to 01-0310-1459, San Onofre Nuclear Generating Station Unit 1 Long-Term Svc Seismic Reevaluation Program,Technical Basis for Stress-Strain Correlation, Per SEP Topic III-6
ML13324A819
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 03/25/1986
From: Medford M
Southern California Edison Co
To: Lear G
Office of Nuclear Reactor Regulation
Shared Package
ML13324A820 List:
References
TASK-03-06, TASK-3-6, TASK-RR NUDOCS 8603270291
Download: ML13324A819 (1)


Text

Southern California Edison Company P. 0.

BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 M.O.MEDFORD TELEPHONE MANAGER. NUCLEAR LICENSING (818) 302-1749 March 25, 1986 Director, Office of Nuclear Reactor Regulation Attention:

G. E. Lear, Director PWR Project Directorate No. 1 U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Gentlemen:

Subject:

Docket No. 50-206 SEP Topic 111-6, Seismic Design Considerations Technical Basis for Stress-Strain Correlation San Onofre Nuclear Generating Station Unit 1 The criteria and methodology for the San Onofre Unit 1 Long Term Service Seismic Reevaluation Program have been discussed with the NRC staff in several meetings during the past few months.

As a result of these meetings, an overall seismic qualification approach has been developed for San Onofre Unit 1. The purpose of this letter is to forward the proposed piping strain criteria and stress-strain correlation methodology for piping qualification at San Onofre Unit 1. Accordingly, provided as enclosures 1 and 2 are Impell Corporation report, "San Onofre Nuclear Generating Station Unit 1, Long Term Service Seismic Reevaluation Program, Technical Basis for Stress-Strain Correlation," Revision 1, dated January 1986 and the supplement to this report dated March 7, 1986.

If you have any questions on this information, please contact me.

Very truly yours, Enclosures cc:

F. R. Huey, USNRC Senior Resident Inspector M. J. Russell, EG&G L. Shieh (LLNL)

E. C. Rodabaugh 8603270291 860325 P

PDR ADOCK 05000206 p

PDRII