Event Notification Report for May 23, 2011
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
05/22/2011 - 05/23/2011
Power Reactor
Event Number: 46873
Facility: BRUNSWICK
Region: 2 State: NC
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: DAVID ANDERSON
HQ OPS Officer: DONG HWA PARK
Region: 2 State: NC
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: DAVID ANDERSON
HQ OPS Officer: DONG HWA PARK
Notification Date: 05/23/2011
Notification Time: 16:00 [ET]
Event Date: 05/23/2011
Event Time: 15:35 [EDT]
Last Update Date: 05/23/2011
Notification Time: 16:00 [ET]
Event Date: 05/23/2011
Event Time: 15:35 [EDT]
Last Update Date: 05/23/2011
Emergency Class: ALERT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
SCOTT SHAEFFER (R2DO)
FREDERICK BROWN (NRR)
BRUCE BOGER (NRR)
VICTOR MCCREE (R2RA)
JEFFERY GRANT (IRD)
SCOTT SHAEFFER (R2DO)
FREDERICK BROWN (NRR)
BRUCE BOGER (NRR)
VICTOR MCCREE (R2RA)
JEFFERY GRANT (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 |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
ALERT DECLARED DUE TO HALON DISCHARGE IN EMERGENCY DIESEL GENERATOR BUILDING
"At 1535 EDT, Brunswick Units 1 & 2 declared an Alert condition due to a discharge of Halon gas into the basement of the emergency diesel generator building (EAL H.A.3.1 for toxic gas discharge into a vital area). Initial inspection indicates that there is no fire. No offsite assistance was required and no personnel injuries as a result of the discharge. Both reactors continue to operate at 100% power. The licensee is investigating the cause of the discharge and will terminate the Alert when the area is ventilated and can be reoccupied.
"The licensee has notified State and local authorities and the NRC Resident Inspector."
* * * UPDATE FROM CHRIS CINDRIC TO DONG PARK AT 1659 EDT ON 5/23/11 * * *
A later report confirmed that one individual was inside the diesel generator building at the time of the Halon discharge. The individual evacuated the building but complained of chest pains about an hour after the incident. An ambulance was dispatched to transport the individual to the hospital.
* * * UPDATE FROM CHRIS CINDRIC TO DONG PARK AT 1945 EDT ON 5/23/11 * * *
The licensee terminated the Alert at 1943 EDT based on restoring normal atmosphere conditions in the emergency diesel generator building. The initiating cause of this event is still being investigated.
The NRC Operations Center has notified the federal agencies initially notified of this event. Notified R2DO (Shaeffer), NRR EO (Brown) and IRD (Grant).
"At 1535 EDT, Brunswick Units 1 & 2 declared an Alert condition due to a discharge of Halon gas into the basement of the emergency diesel generator building (EAL H.A.3.1 for toxic gas discharge into a vital area). Initial inspection indicates that there is no fire. No offsite assistance was required and no personnel injuries as a result of the discharge. Both reactors continue to operate at 100% power. The licensee is investigating the cause of the discharge and will terminate the Alert when the area is ventilated and can be reoccupied.
"The licensee has notified State and local authorities and the NRC Resident Inspector."
* * * UPDATE FROM CHRIS CINDRIC TO DONG PARK AT 1659 EDT ON 5/23/11 * * *
A later report confirmed that one individual was inside the diesel generator building at the time of the Halon discharge. The individual evacuated the building but complained of chest pains about an hour after the incident. An ambulance was dispatched to transport the individual to the hospital.
* * * UPDATE FROM CHRIS CINDRIC TO DONG PARK AT 1945 EDT ON 5/23/11 * * *
The licensee terminated the Alert at 1943 EDT based on restoring normal atmosphere conditions in the emergency diesel generator building. The initiating cause of this event is still being investigated.
The NRC Operations Center has notified the federal agencies initially notified of this event. Notified R2DO (Shaeffer), NRR EO (Brown) and IRD (Grant).
Power Reactor
Event Number: 46875
Facility: FORT CALHOUN
Region: 4 State: NE
Unit: [1] [] []
RX Type: (1) CE
NRC Notified By: SCOTT MOECK
HQ OPS Officer: VINCE KLCO
Region: 4 State: NE
Unit: [1] [] []
RX Type: (1) CE
NRC Notified By: SCOTT MOECK
HQ OPS Officer: VINCE KLCO
Notification Date: 05/23/2011
Notification Time: 23:41 [ET]
Event Date: 05/23/2011
Event Time: 22:00 [CDT]
Last Update Date: 05/24/2011
Notification Time: 23:41 [ET]
Event Date: 05/23/2011
Event Time: 22:00 [CDT]
Last Update Date: 05/24/2011
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):
DALE POWERS (R4DO)
DOMINIC PALAZZOLO (EPA)
DALE POWERS (R4DO)
DOMINIC PALAZZOLO (EPA)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
OFFSITE NOTIFICATION DUE TO AN OIL SPILL
"On May 23, 2011, at 2200 CDT, the station needed to notify the State of Nebraska, Department of Environmental Quality and the National Response Center due to an oil leak from the stations lube oil system. A quantity of oil spilled into the turbine building basement and an undetermined amount drained to the turbine building sump which discharges to the Missouri River. Some amount of oil was discharged to the river, which resulted in discoloration and a visible sheen noted on river sampling. Per Fort Calhoun Nuclear Station's National Pollutant Discharge Elimination System (NPDES) permit, the notifications will be made and samples will be taken for off site analysis to determine the quantity discharged involved. Also, the oil quantity in the turbine building sump (out fall L02) is expected to have exceeded 20 ppm oil and grease which does violate the State NPDES permit NE00000418.
"This notification is being made in accordance with 10 CFR 50.72(b)(2)(xi), 4 hour non-emergency notification due to a notifications being made to Government [Agencies] (State of Nebraska, Department of Environmental Quality and the National Response Center)."
The licensee notified the NRC Resident Inspector.
"On May 23, 2011, at 2200 CDT, the station needed to notify the State of Nebraska, Department of Environmental Quality and the National Response Center due to an oil leak from the stations lube oil system. A quantity of oil spilled into the turbine building basement and an undetermined amount drained to the turbine building sump which discharges to the Missouri River. Some amount of oil was discharged to the river, which resulted in discoloration and a visible sheen noted on river sampling. Per Fort Calhoun Nuclear Station's National Pollutant Discharge Elimination System (NPDES) permit, the notifications will be made and samples will be taken for off site analysis to determine the quantity discharged involved. Also, the oil quantity in the turbine building sump (out fall L02) is expected to have exceeded 20 ppm oil and grease which does violate the State NPDES permit NE00000418.
"This notification is being made in accordance with 10 CFR 50.72(b)(2)(xi), 4 hour non-emergency notification due to a notifications being made to Government [Agencies] (State of Nebraska, Department of Environmental Quality and the National Response Center)."
The licensee notified the NRC Resident Inspector.