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Event Notification Report for January 23, 2005

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
01/22/2005 - 01/23/2005

EVENT NUMBERS
4135041398

Power Reactor
Event Number: 41350
Facility: CALVERT CLIFFS
Region: 1     State: MD
Unit: [1] [2] []
RX Type: [1] CE,[2] CE
NRC Notified By: DAVID SMITH
HQ OPS Officer: MIKE RIPLEY
Notification Date: 01/23/2005
Notification Time: 13:51 [ET]
Event Date: 01/23/2005
Event Time: 12:00 [EST]
Last Update Date: 01/23/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
HAROLD GRAY (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
LOSS OF EMERGENCY NOTIFICATION SIREN CAPABILITY DUE TO LOSS OF POWER

A significant portion of the emergency notification sirens (19 of 50) located in Calvert County, MD are out of service due to a Southern Maryland Electric Cooperative (SMECO) power outage. The licensee stated that power is expected to be restored by 1700 ET 01/23/05.

The licensee will inform the NRC Resident Inspector.

* * * UPDATE FROM PACE TO CROUCH @ 2022 HRS EST ON 1/23/05 * * *

The out of service sirens have been tested and returned to service as of 2000 hrs. EST. The licensee has notified the NRC Resident Inspector.

Notified R1DO (Gray).


Power Reactor
Event Number: 41398
Facility: KEWAUNEE
Region: 3     State: WI
Unit: [1] [] []
RX Type: [1] W-2-LP
NRC Notified By: ETHAN TREPTOW
HQ OPS Officer: STEVE SANDIN
Notification Date: 02/10/2005
Notification Time: 15:14 [ET]
Event Date: 01/23/2005
Event Time: 00:00 [CST]
Last Update Date: 02/24/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
Person (Organization):
ERIC DUNCAN (R3)
TERRY REIS (NRR)
JACK CRLENJAK (IRD)
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
Event Text
DISCOVERY OF AFTER-THE-FACT EMERGENCY CONDITION (UNUSUAL EVENT)

"On 2/10/05 at 13:35, the Shift Manager became aware of a condition that previously existed which met the Emergency Plan criteria for declaration of an Unusual Event. On 1/23/05, a Radiation Protection Technician released nitrogen into the RAF Countroom as part of an experiment. During the experiment, the atmospheric monitors in the room detected life-threatening levels of nitrogen (oxygen deficient atmosphere). This has been determined to meet the criteria for an Unusual Event per Emergency Classification Level Chart P for a release of toxic or flammable gas on site and portable monitors indicate concentrations at life threatening levels."

Management became aware of the unauthorized experiment conducted by the Technician during a management review. There were no personnel injuries as a result of this incident.

The licensee will inform both state/local agencies and the NRC Resident Inspector.

* * * UPDATE FROM LICENSEE (ROBB) TO NRC (HUFFMAN) AT 1907 EST ON 2/24/05 * * *

"On 2/24/05 at approximately 1720 hours, it was discovered that a second incident had occurred prior to the previously reported occurrence (EN#41398) that met the Emergency Plan criteria for an Unusual Event declaration. Based on the investigation of the 1/23/05 incident, the same Radiation Protection Technician had released liquid nitrogen in the Auxiliary Building elevator, as part of the same data collection activity. The release may have been at the levels of 'Immediate Danger to Life and Health' in this separate case. This previous incident occurred on 1/22/05 at approximately 1200 hours."

The licensee will inform both state/local agencies and the NRC Resident Inspector.

R3DO(Lanksbury), NRR EO (Carpenter), and IRD (Kennedy) notified.