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Event Notification Report for May 25, 2003

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
05/24/2003 - 05/25/2003

EVENT NUMBERS
39880

Power Reactor
Event Number: 39880
Facility: CALVERT CLIFFS
Region: 1     State: MD
Unit: [1] [2] []
RX Type: [1] CE,[2] CE
NRC Notified By: DAVID FRYE
HQ OPS Officer: JOHN MacKINNON
Notification Date: 05/25/2003
Notification Time: 23:12 [ET]
Event Date: 05/25/2003
Event Time: 21:45 [EDT]
Last Update Date: 05/25/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
ANTHONY DIMITRIADIS (R1)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
2 N Y 100 Power Operation 100 Power Operation
Event Text
INADVERTENT ACTUATION OF EMERGENCY SIREN # 38 IN DORCHESTER COUNTY, MARYLAND


Emergency Siren # 38 inadvertently actuated in Dorchester County, Maryland at 1610 EDT. Dorchester County Emergency Response Center drove out to the Emergency Siren and verified that the Emergency Siren had actuated. Dorchester County Emergency Response Center notified Calvert Cliffs Nuclear Power Plant at 2145 EDT that Emergency Siren # 38 had actuated. Some kind of atmospheric anomaly caused the Emergency Siren to actuate.

The NRC Resident Inspector will be notified of this event by the licensee.