Event Notification Report for August 07, 2010
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
08/06/2010 - 08/07/2010
Power Reactor
Event Number: 46158
Facility: RIVER BEND
Region: 4 State: LA
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: TIM GATES
HQ OPS Officer: DONALD NORWOOD
Region: 4 State: LA
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: TIM GATES
HQ OPS Officer: DONALD NORWOOD
Notification Date: 08/07/2010
Notification Time: 03:53 [ET]
Event Date: 08/07/2010
Event Time: 00:15 [CDT]
Last Update Date: 08/07/2010
Notification Time: 03:53 [ET]
Event Date: 08/07/2010
Event Time: 00:15 [CDT]
Last Update Date: 08/07/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
BOB HAGAR (R4DO)
BOB HAGAR (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 89 | Power Operation | 89 | Power Operation |
OFFSITE NOTIFICATION DUE TO INADVERTENT SOUNDING OF ONE OFFSITE EMERGENCY SIREN
"River Bend Station is making a 4 hour report in accordance with 10CFR50.72(b)(2)(xi) of an event that occurred at approximately 0015 hours on August 7, 2010 when one offsite emergency siren for River Bend located in West Feliciana Parish inadvertently sounded. The siren activation was not related to any condition or event at River Bend. River Bend has notified West Feliciana Parish authorities and the Governor's Office of Homeland Security and Emergency Preparedness of the inadvertent siren activation.
"At 0230 hours on August 7, 2010 the malfunctioning siren was disabled to prevent any further inadvertent sounding.
"The site NRC Resident Inspector's office has been informed of the inadvertent siren activation and that a 4 hour notification is being made.
"The River Bend alert and notification system remained operable for the duration of the event.
"The Governor's Office of Homeland Security and Emergency Preparedness does not intend to air the inadvertent siren sounding message over the emergency alert system. A press release from Entergy is not planned at this time."
"River Bend Station is making a 4 hour report in accordance with 10CFR50.72(b)(2)(xi) of an event that occurred at approximately 0015 hours on August 7, 2010 when one offsite emergency siren for River Bend located in West Feliciana Parish inadvertently sounded. The siren activation was not related to any condition or event at River Bend. River Bend has notified West Feliciana Parish authorities and the Governor's Office of Homeland Security and Emergency Preparedness of the inadvertent siren activation.
"At 0230 hours on August 7, 2010 the malfunctioning siren was disabled to prevent any further inadvertent sounding.
"The site NRC Resident Inspector's office has been informed of the inadvertent siren activation and that a 4 hour notification is being made.
"The River Bend alert and notification system remained operable for the duration of the event.
"The Governor's Office of Homeland Security and Emergency Preparedness does not intend to air the inadvertent siren sounding message over the emergency alert system. A press release from Entergy is not planned at this time."
Power Reactor
Event Number: 46159
Facility: OCONEE
Region: 2 State: SC
Unit: [1] [] []
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: BOB MEIXELL
HQ OPS Officer: MARK ABRAMOVITZ
Region: 2 State: SC
Unit: [1] [] []
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: BOB MEIXELL
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 08/07/2010
Notification Time: 18:47 [ET]
Event Date: 08/07/2010
Event Time: 14:51 [EDT]
Last Update Date: 08/07/2010
Notification Time: 18:47 [ET]
Event Date: 08/07/2010
Event Time: 14:51 [EDT]
Last Update Date: 08/07/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
BRIAN BONSER (R2DO)
BRIAN BONSER (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | M/R | Y | 100 | Power Operation | 0 | Hot Standby |
MANUAL REACTOR TRIP AFTER REACTOR COOLANT PUMPS HIGH VIBRATION
"At 1451 on 8/7/2010, Oconee Unit 1 initiated a manual reactor trip from approximately 17% power due to indicated vibrations on 1A1 and 1A2 reactor coolant pumps [RCP] reaching the high vibration trip criteria. All systems responded normally following the reactor trip. Unit 1 is currently stable in MODE 3. An investigation is in progress to determine the cause of the elevated reactor coolant pump vibrations."
All control rods fully inserted on the trip. Decay heat is being removed via the turbine bypass valves to the main condenser. Steam generator water level is being maintained with main feedwater. There is no evidence that the PORVs or safety valves lifted. The plant is in its normal shutdown electrical lineup. There were no indications on the loose parts monitor except for the RCP high vibration. There was no affect on units 2 or 3.
The licensee notified the NRC Resident Inspector.
"At 1451 on 8/7/2010, Oconee Unit 1 initiated a manual reactor trip from approximately 17% power due to indicated vibrations on 1A1 and 1A2 reactor coolant pumps [RCP] reaching the high vibration trip criteria. All systems responded normally following the reactor trip. Unit 1 is currently stable in MODE 3. An investigation is in progress to determine the cause of the elevated reactor coolant pump vibrations."
All control rods fully inserted on the trip. Decay heat is being removed via the turbine bypass valves to the main condenser. Steam generator water level is being maintained with main feedwater. There is no evidence that the PORVs or safety valves lifted. The plant is in its normal shutdown electrical lineup. There were no indications on the loose parts monitor except for the RCP high vibration. There was no affect on units 2 or 3.
The licensee notified the NRC Resident Inspector.
General Information or Other
Event Number: 46180
Rep Org: IOWA DEPARTMENT OF PUBLIC HEALTH
Licensee: RADIOLOGY GROUP BC
Region: 3
City: DAVENPORT State: IA
County:
License #: 0306-1-82-M1
Agreement: Y
Docket:
NRC Notified By: NANCY FARRINGTON
HQ OPS Officer: BILL HUFFMAN
Licensee: RADIOLOGY GROUP BC
Region: 3
City: DAVENPORT State: IA
County:
License #: 0306-1-82-M1
Agreement: Y
Docket:
NRC Notified By: NANCY FARRINGTON
HQ OPS Officer: BILL HUFFMAN
Notification Date: 08/17/2010
Notification Time: 09:45 [ET]
Event Date: 08/07/2010
Event Time: 00:00 [CDT]
Last Update Date: 08/17/2010
Notification Time: 09:45 [ET]
Event Date: 08/07/2010
Event Time: 00:00 [CDT]
Last Update Date: 08/17/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
NICK VALOS (R3DO)
ANGELA MCINTOSH (FSME)
NICK VALOS (R3DO)
ANGELA MCINTOSH (FSME)
AGREEMENT STATE - POSSIBLE EXPOSURES OF MEMBERS OF GENERAL PUBLIC FROM A THYROID ABLATION PATIENT
A representative of the Iowa Bureau of Radiological Health reported a possible exposure event involving members of a medical center staff and perhaps others who were exposed to a patient that had recently been given a thyroid ablation treatment. The patient had been administered a dose of 150 millicuries of I-131 to ablate the thyroid on 8/6/10. The patient was then released and cautioned on avoiding contact with other people. On 8/7/10, the patient experienced an medical condition that resulted in an incoherent condition and was rushed to a medical center for treatment of that condition. The medical center was unaware of the patient's recent I-131 thyroid ablation treatment. The Radiology Group that administered the thyroid ablation subsequently became aware of the patient's admittance to the medical center. The Radiology Group is working with the medical center and also contacted the State of Iowa with the concerns about exposure that general members of the public may have received from the thyroid patient.
The State does not know details on the radiation levels that were present near the thyroid patient at the time of this event. The State is investigating the details of the event and possible exposures. The State is uncertain if the event is reportable under the State equivalent of 10 CFR 35.75 assuming that the patient met the release criteria after the thyroid treatment at the Radiology Group.
A representative of the Iowa Bureau of Radiological Health reported a possible exposure event involving members of a medical center staff and perhaps others who were exposed to a patient that had recently been given a thyroid ablation treatment. The patient had been administered a dose of 150 millicuries of I-131 to ablate the thyroid on 8/6/10. The patient was then released and cautioned on avoiding contact with other people. On 8/7/10, the patient experienced an medical condition that resulted in an incoherent condition and was rushed to a medical center for treatment of that condition. The medical center was unaware of the patient's recent I-131 thyroid ablation treatment. The Radiology Group that administered the thyroid ablation subsequently became aware of the patient's admittance to the medical center. The Radiology Group is working with the medical center and also contacted the State of Iowa with the concerns about exposure that general members of the public may have received from the thyroid patient.
The State does not know details on the radiation levels that were present near the thyroid patient at the time of this event. The State is investigating the details of the event and possible exposures. The State is uncertain if the event is reportable under the State equivalent of 10 CFR 35.75 assuming that the patient met the release criteria after the thyroid treatment at the Radiology Group.