ML13330B146
| ML13330B146 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 01/07/1987 |
| From: | Medford M Southern California Edison Co |
| To: | Office of Administration |
| References | |
| TASK-02-01.C, TASK-2-1.C, TASK-3.D.3.4, TASK-RR, TASK-TM NUDOCS 8701140128 | |
| Download: ML13330B146 (1) | |
Text
Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 M. O. MEDFORD TELEPHONE MANAGER OF NUCLEAR ENGINEERING (818) 302-1749 AND LICENSING January 7, 1987 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Gentlemen:
Subject:
Docket No. 50-206 Control Room HVAC Design Review San Onofre Nuclear Generating Station Unit 1
References:
- 2. Letter, M. 0. Medford, SCE, to G. E. Lear, NRC, SEP Topic II-l.C, Offsite Hazards, NUREG-0737, Item III.D.3.4-Control Room Habitability, October 10, 1986 Reference 1 provided you with a commitment to install heaters in the control room emergency air intake to improve humidity control.
The intent of the modification was to resolve a concern regarding moisture buildup on the charcoal filter and its resultant affect on filter efficiency. As discussed with members of the NRC Staff, in order to permit installation during the San Onofre Unit 1 mid-Cycle outage currently scheduled for the second quarter 1987, the heaters will be nonsafety-related. As you know, the implementation of nonsafety-related heaters is a temporary application that will be replaced by the long-term upgrade discussed in Reference 2.
If you have any questions, please let me know.
Very truly yours, 8701140128 870107 PDR ADOCK 05000206 P
PDR cc:
- 3. B. Martin, NRC Region V, Regional Administrator R. F. Dudley, NRC/NRR San Onofre Unit 1 Project Manager F. R. Huey, NRC Senior Resident Inspector 0~o 1Dv