ML13310A828

From kanterella
Jump to navigation Jump to search

Discusses Review of Emergency Operations Facility (EOF) Ventilation Sys Design.Potential Problem W/Air Leakage from EOF Equipment Will Be Corrected
ML13310A828
Person / Time
Site: San Onofre  
Issue date: 07/22/1983
From: Baskin K
Southern California Edison Co
To: Eisenhut D
Office of Nuclear Reactor Regulation
References
TAC-44128 NUDOCS 8307260135
Download: ML13310A828 (1)


Text

Southern California Edison Company P. 0.

BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 K. P. BASKIN TELEPHONE MANAGER OF NUCLEAR ENGINEERING, July 22, 1983 (213) 572-1401 SAFETY, AND LICENSING Director, Office of Nuclear Reactor Regulation Attention:

Mr. D. G. Eisenhut, Director Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Gentl emen:

Subject:

EOF Ventilation System Docket Nos. 50-206, 50-361 and 50-362 San Onofre Nuclear Generating Station Units 1, 2 and 3 In response to recent statements by the staff of the Nuclear Regulatory Commission (NRC) requiring the capability to isolate the ventilation system for the Emergency Operations.Facility (EOF) at San Onofre Nuclear Generating Station (SONGS),

Southern California Edison Company (SCE) has reviewed the EOF ventilation system design.

As a result of the review, SCE has concluded that certain modifications are-necessary to assure that the EOF ventilation system can be isolated.

The modifications involve the installation of isolation dampers on all HVAC penetrations into the EOF. SCE is proceeding with the modifications and these modifications will be completed and associated procedures issued by January 1, 1984.

As a result of SCE's review of the EOF ventilation system design, SCE has identified a potential problem with air leakage from EOF equipment rooms, such as the diesel generator room. The significance of these leaks is unknown at this time. If it is determined necessary, SCE will correct the problem in an expeditious manner.

If you have any questions, please call me.

Very truly yours, cc: D. M. Crutchfield - NRC G. W. Knighton -

NRC H. Rood - NRC (to be opened by addressee only)

A. E. Chaffee - Resident Inspector -

SONGS 2&3 8307260135 830722 PDR ADOCK 05000206 F

PDR__