ML20052B977
| ML20052B977 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 04/27/1982 |
| From: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Deyoung R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| NUDOCS 8205040214 | |
| Download: ML20052B977 (2) | |
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esuuo SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, Box 15830, Sacramento, California 95813; (916) 452-3211 l
5 April 27, 1982 O
N e
OEC "
2, 7
MM 3 1982
- 1 RICHARD C DE YOUNG DIRECTOR C WTlW" "7 :a.'
0FFICE OF INSPECTION AND ENFORCEMENT U S NUCLEAR REGULATORY COMMISSION 1
s V'~
Qm WASHINGTON D C 20555 DOCKET 50-312 RANCHO SECO NUCLEAR GENERATING STATION UNIT N0 1 PROMPT NOTIFICATION SYSTEM
REFERENCES:
10 CFR 50 Appendix E Section IV.D.3 District letter of June 30, 1981 District letter of July 24, 1981 Fedeial Register Vol. 46, No.182 p46587 NRC Region V letter of October 20, 1981 District letter of December 31, 1981 NRC Region V letter of January 21, 1982 Notice of Violation, February 12, 1982 District letter of February 12, 1982 District letter of March 3,1982 District letter of March 18, 1982 District letter of April 1,1982 District letter of April 19, 1982 The following is the status of our Prompt Notification System as of April 26,1982:
Materials Alerting Communicators of America (ACA)
Material delivery is complete.
Installation Counties The activation equipment is installed in the emergency operations
/
centers of the three counties.
, /o 8205040als AN ELECTRIC SYSTEM SERVING MORE THAN 600.000 IN THE HEART OF CAtif0RNiA
RICHARD C DE YOUNG April 27, 1982 District All siren installations are completed.
We planned to have the system operational by Monday, April 26, 1982.
Fi rst, the sirens in Sacramento County would be placed in a " Ready-For-Activation" mode,, followed by those in Amador and San Joaquin Counties. On Friday, April 23rd at 8:00 a.m., we began placing the sirens in Sacramento County in the
" Ready-For-Activation" mode. At approximately 3:15 p.m. on the 23rd we received reports of a false siren operation. The siren was deactivated. At 5:00 p.m. on the same day we received reports of another false operation. We decided to deactivate all the sirens. The siren manufacturer, ACA, has been contacted to solve and correct the problem. The District will keep you in-formed as further information develops.
tI John J. Mattimoe Assistant General Manager and Chief Engineer cc:
R. H. Engelken, Director Region V, Office of Inspection and Enforcement l
I