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Event Notification Report for September 10, 2007

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
09/07/2007 - 09/10/2007

** EVENT NUMBERS **


43619 43622 43623 43624 43625

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Power Reactor Event Number: 43619
Facility: GRAND GULF
Region: 4 State: MS
Unit: [1] [ ] [ ]
RX Type: [1] GE-6
NRC Notified By: HARDY FARRIS
HQ OPS Officer: BILL HUFFMAN
Notification Date: 09/06/2007
Notification Time: 18:53 [ET]
Event Date: 09/06/2007
Event Time: 16:05 [CDT]
Last Update Date: 09/07/2007
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
TROY PRUETT (R4)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Cold Shutdown 0 Cold Shutdown

Event Text

EOF DECLARED NON-OPERATIONAL

"On 9/06/2007 a leak in the water supply to the Emergency Operations Facility (EOF) at Grand Gulf Nuclear Station progressed to the point that the facility is not operational. The duration of the water outage is currently unknown. Plant emergency response personnel, state, and local agencies are being informed to use the EOF backup facility."

The licensee has notified State and local authorities and the NRC Resident Inspector.

* * * UPDATE FROM HOLCOMBE TO HUFFMAN AT 1726 EDT ON 9/7/07 * * *

The water supply to the EOF has been repaired and normal water service has been restored. The licensee declared the EOF operable at 1515 CDT on 9/7/07. R4DO (Pruett) has been notified.

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Power Reactor Event Number: 43622
Facility: CALLAWAY
Region: 4 State: MO
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP
NRC Notified By: RICHARD THOMPSON
HQ OPS Officer: JOHN KNOKE
Notification Date: 09/07/2007
Notification Time: 00:52 [ET]
Event Date: 09/06/2007
Event Time: 23:22 [CDT]
Last Update Date: 09/07/2007
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
TROY PRUETT (R4)
JIM DYER (NRR)
PAT GWYNN (R4)
TOM ANDREWS (R4)
FANGIE JONES (R4)
IRWIN (FEMA)
EVANS (DHS)
MICHELE EVANS (NRR)
JEFF CRUZ (IRD)

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

LEAKAGE FROM REACTOR COOLANT SYSTEM >10 GPM

A relief valve (BG 8117) in the letdown system opened and released about 650 - 700 gallons of water from the reactor coolant system into the pressurizer relief tank. The rate of release from the letdown was 119 gpm. It was estimated that the pressurizer level lowered about 2-3%. The letdown system was isolated by closing the letdown orifice block isolation valve. Licensee is investigating the reason for the spurious lifting of the relief valve. Due to leakage from the reactor coolant system, the licensee entered EAL 4R. Plant is stable and operating at full power.

The licensee notified the NRC Resident Inspector.

* * * UPDATE FROM THOMPSON TO ABRAMOVITZ AT 0120 EDT ON 09/07/07 * * *

The licensee stated that the Unusual Event was exited at 0120 EDT.

The licensee notified the NRC Resident Inspector. Notified R4DO (Pruett) and NRR EO (Evans) and IRD MOC (Cruz).

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Power Reactor Event Number: 43623
Facility: PRAIRIE ISLAND
Region: 3 State: MN
Unit: [1] [2] [ ]
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: TIM HENDEL
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 09/07/2007
Notification Time: 10:17 [ET]
Event Date: 09/07/2007
Event Time: 06:55 [CDT]
Last Update Date: 09/07/2007
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
ANNE MARIE STONE (R3)

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

PLANT EMERGENCY SIREN FALSE ACTIVATION

"False siren activation near Ellsworth, Wisconsin. Sheriffs deputy turned off siren [locally at the siren].
"0655 The Sheriff called Nelson Communication.
"0710 Nelson Communication called Emergency Planning Group.
"0720 Emergency Planning Group called Control Room.
"0750 Siren is confirmed off.

"Pierce County Emergency Manager reported no media contacts were made."

The licensee notified the NRC Resident Inspector, state, and local agencies.

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Power Reactor Event Number: 43624
Facility: HATCH
Region: 2 State: GA
Unit: [1] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: FRANK GORLEY
HQ OPS Officer: BILL HUFFMAN
Notification Date: 09/08/2007
Notification Time: 13:29 [ET]
Event Date: 09/08/2007
Event Time: 12:02 [EDT]
Last Update Date: 09/08/2007
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
SCOTT SHAEFFER (R2)

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

PROMPT NOTIFICATION SYSTEM NOT AVAILABLE

The licensee was informed by the Jacksonville, FL National Weather Service that the NOAA Prompt Notification System was not operational. Plant Hatch utilizes the NOAA system to broadcast prompt emergency notifications. Hatch will use radio and phone notifications as a backup (if needed) until the NOAA system is restored. No information was available on the cause of the NOAA system outage or when it would be returned to service.

The license has notified the Georgia Emergency Management Agency, the local authorities, and will notify the NRC Resident Inspector.

* * * UPDATE FROM GORLEY TO HUFFMAN AT 1817 EDT ON 9/8/07 * * *

The prompt notification system was restored at 1745 EDT on 9/8/07. The license has notified the Georgia Emergency Management Agency, the local authorities, and the NRC Resident Inspector. R2DO (Shaeffer) notified.

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Power Reactor Event Number: 43625
Facility: DUANE ARNOLD
Region: 3 State: IA
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: DAVID MANKIN
HQ OPS Officer: JEFF ROTTON
Notification Date: 09/09/2007
Notification Time: 11:02 [ET]
Event Date: 09/09/2007
Event Time: 08:30 [CDT]
Last Update Date: 09/09/2007
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
ANNE MARIE STONE (R3)

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

PRESS RELEASE DUE TO LINN COUNTY INADVERTENT EMERGENCY SIREN ACTIVATION

"A press release is being made by Linn County stating that an unknown number of Emergency Notification sirens inadvertently activated in the Cedar Rapids area. The cause for the sirens being inadvertently activated is being investigated by utility employees."

These sirens are used for warning the public during severe weather, an emergency at the Duane Arnold Energy Center, or other type of community emergencies. The sirens were not activated by any of the normal control locations in Linn and Benton counties. The sirens were activated for an unknown amount of time and have been secured. Licensee has been in communication with local emergency planning organizations.

The licensee notified the NRC Resident Inspector.

Page Last Reviewed/Updated Thursday, March 29, 2012
Thursday, March 29, 2012