| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
04/05/2011 - 04/06/2011 ** EVENT NUMBERS ** |
 | Power Reactor | Event Number: 46724 | Facility: DUANE ARNOLD
Region: 3 State: IA
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: BOB MURRELL
HQ OPS Officer: JOHN SHOEMAKER | Notification Date: 04/05/2011
Notification Time: 11:58 [ET]
Event Date: 02/04/2011
Event Time: 13:54 [CDT]
Last Update Date: 04/05/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
| Person (Organization):
ROBERT DALEY (R3DO)
|
| 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 INVALID PRIMARY CONTAINMENT ISOLATION SYSTEM ACTUATION DUE TO A FAILED RELAY COIL
"This 60-day telephone notification is being made under reporting requirements specified by 10CFR50.73 (a)(2)(iv)(A) to describe an invalid actuation of a containment isolation signal affecting more than one system.
"At 1354 on February 4, 2011, with the Duane Arnold Energy Center (DAEC) operating at 100% power, an invalid Group 3 isolation on the 'B' side of the Primary Containment Isolation System occurred. Group 3 isolation signals were generated for Primary Containment Isolation Valves for Drywell and Torus Ventilation, and Purge, Containment Nitrogen Compressor Suction and Discharge, Recirculation Pump Seals, and Post Accident Sample System.
"This event was caused by a high resistance contact on relays in the trip circuitry for the 'B' Fuel Pool Exhaust Radiation Monitor logic.
"All equipment responded in accordance with the plant design. Specifically, all actuations were complete and successful.
"There were no safety consequences or impacts on the health and safety of the public. The event was entered into DAEC's corrective action program for resolution."
The licensee notified the NRC Resident Inspector. |
| Fuel Cycle Facility | Event Number: 46725 | Facility: B&W NUCLEAR OPERATING GROUP, INC.
RX Type: URANIUM FUEL FABRICATION
Comments: HEU FABRICATION & SCRAP
Region: 2
City: LYNCHBURG State: VA
County: CAMPBELL
License #: SNM-42
Agreement: N
Docket: 070-27
NRC Notified By: BARRY COLE
HQ OPS Officer: PETE SNYDER | Notification Date: 04/05/2011
Notification Time: 12:01 [ET]
Event Date: 04/05/2011
Event Time: 11:49 [EDT]
Last Update Date: 04/05/2011 | Emergency Class: ALERT
10 CFR Section:
70.32(i) - EMERGENCY DECLARED
| Person (Organization):
MARVIN SYKES (R2DO)
ABY MOHSENI (NMSS)
VICTOR MCCREE (R2)
LAWRENCE KOKAJKO (NMSS)
VONNA ORDAZ (NMSS)
WILLIAM GOTT (IRM)
TAB BEACH (DHS)
ERWIN CASTO (FEMA)
NICK THREAT (EPA()
STU BAILEY (DOE)
| Event Text ALERT DECLARED DUE TO ACID LEAK GREATER THAN THE 40 CFR LIMIT
The licensee secured their process after an acid leak greater that the 40 CFR limit developed at a piping joint. The leak consisted of a mixture of hydrofluoric and nitric acid. A licensee response team was dispatched to the site of the leak to evaluate the condition.
No injuries resulted and there were no evacuations nor health and safety consequences at the site.
Additionally notified USDA (R. Jones), HHS (J. Dennis) and Fuels OUO Group.
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM DONNA MILLER TO PETE SNYDER AT 1241 EDT ON 4/5/11 * * *
The licensee exited the emergency condition at 1237 EDT on 4/5/11. The spill is contained and no longer poses any threat to employees or the environment. |
| Power Reactor | Event Number: 46727 | Facility: MONTICELLO
Region: 3 State: MN
Unit: [1] [ ] [ ]
RX Type: [1] GE-3
NRC Notified By: MARK HOESCHEN
HQ OPS Officer: JOHN SHOEMAKER | Notification Date: 04/05/2011
Notification Time: 15:42 [ET]
Event Date: 04/05/2011
Event Time: 14:30 [CDT]
Last Update Date: 04/05/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
ROBERT DALEY (R3DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | N | 0 | Refueling | 0 | Refueling | Event Text PLANNED LOSS OF EMERGENCY ASSESSMENT CAPABILITY FOR SCHEDULED MAINTENACE
Monticello Nuclear Generating Station reported a planned loss of emergency assessment capability for maintenance, at 1430 (CDT) on 04/05/11. Unavailable systems and functions include the Safety Parameter Display System (SPDS), communications between the Process Computer System (PCS) and the Man-Machine Integration Design and Analysis System (MIDAS) computer, and data transfer capability via Emergency Response Data System (ERDS) link to the Nuclear Regulatory Commission (NRC).
Projected outage duration is approximately 4 hours. Control Room and local instrumentation, and annunciators remain available for accident assessment. Telephone lines remain available between site emergency response facilities and offsite agencies for communication of plant status information. During this period, MIDAS remains available to perform dose assessment in the manual input mode.
The licensee will notify the NRC Resident Inspector and the State Emergency Response Center. |
| Power Reactor | Event Number: 46728 | Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [ ] [2] [ ]
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: JULIAN THOMPSON
HQ OPS Officer: DONG HWA PARK | Notification Date: 04/05/2011
Notification Time: 18:08 [ET]
Event Date: 04/05/2011
Event Time: 08:01 [EDT]
Last Update Date: 04/05/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
| Person (Organization):
JOHN CARUSO (R1DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text CONTRABAND FOUND INSIDE THE PROTECTED AREA
Contraband was discovered inside a vehicle brought into the Protected Area. The contraband was confiscated and unescorted access for the driver has been administratively withdrawn. Contact the Headquarters Operations Officer for additional details.
The NRC Resident Inspector has been notified. |
| Fuel Cycle Facility | Event Number: 46729 | Facility: HONEYWELL INTERNATIONAL, INC.
RX Type: URANIUM HEXAFLUORIDE PRODUCTION
Comments: UF6 CONVERSION (DRY PROCESS)
Region: 2
City: METROPOLIS State: IL
County: MASSAC
License #: SUB-526
Agreement: Y
Docket: 04003392
NRC Notified By: BOB STOKES
HQ OPS Officer: DONG HWA PARK | Notification Date: 04/05/2011
Notification Time: 18:34 [ET]
Event Date: 04/04/2011
Event Time: 21:00 [CDT]
Last Update Date: 04/05/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
40.60(b)(3) - MED TREAT INVOLVING CONTAM
| Person (Organization):
BRIAN BONSER (R2DO)
ABY MOHSENI (NMSS)
| Event Text UNPLANNED MEDICAL TREATMENT INVOLVING CONTAMINATION
"Employee was treated for HF exposure at 2100 [CDT on 4/4/11]. The employee had contamination on his shoes and coveralls. Contamination levels were estimated to be approximately 10,000 dpm/100 cm squared. The employee was treated using calcium gluconate and returned to work.
"Isotope, quantities and chemical form: Weak hydrofluoric acid, uranium ore concentrates."
The employee was treated onsite by site personnel. The employee was decontaminated before leaving the site.
The licensee notified the Senior Fuel Facility Inspector. |
| Fuel Cycle Facility | Event Number: 46730 | Facility: HONEYWELL INTERNATIONAL, INC.
RX Type: URANIUM HEXAFLUORIDE PRODUCTION
Comments: UF6 CONVERSION (DRY PROCESS)
Region: 2
City: METROPOLIS State: IL
County: MASSAC
License #: SUB-526
Agreement: Y
Docket: 04003392
NRC Notified By: BOB STOKES
HQ OPS Officer: DONG HWA PARK | Notification Date: 04/05/2011
Notification Time: 18:34 [ET]
Event Date: 04/05/2011
Event Time: 11:00 [CDT]
Last Update Date: 04/05/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
40.60(b)(3) - MED TREAT INVOLVING CONTAM
| Person (Organization):
BRIAN BONSER (R2DO)
ABY MOHSENI (NMSS)
| Event Text UNPLANNED MEDICAL TREATMENT INVOLVING CONTAMINATION
"Employee was treated for KOH exposure at 1100 [CDT on 4/5/11]. The employee had contamination on his plant issued shoes. Contamination levels were estimated to be approximately 16,800 dpm/100 cm squared. The employee was treated using ammonium sulfate and returned to work.
"Isotope, quantities and chemical form: Caustic (KOH), uranium ore concentrates."
The employee was treated onsite by site personnel. The employee was decontaminated before leaving the site.
The licensee notified the Senior Fuel Facility Inspector. |
| Power Reactor | Event Number: 46731 | Facility: COOK
Region: 3 State: MI
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JAMES SHAW
HQ OPS Officer: DONALD NORWOOD | Notification Date: 04/06/2011
Notification Time: 02:44 [ET]
Event Date: 04/06/2011
Event Time: 04:00 [EDT]
Last Update Date: 04/06/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
ROBERT DALEY (R3DO)
|
| 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 TECHNICAL SUPPORT CENTER VENTILATION SYSTEM OUT OF SERVICE DUE TO PLANNED MAINTENANCE
"At 0400 EDT on Wednesday, April 6, 2011, the Cook Nuclear Plant (CNP) Technical Support Center (TSC) air conditioning and charcoal filtration systems will be removed from service for scheduled maintenance.
"Under certain accident conditions the TSC may become unavailable due to the inability of the air conditioning and charcoal filtration systems to maintain a habitable atmosphere. Compensatory measures exist to relocate TSC personnel to the unaffected unit's control room if necessary.
"TSC ventilation system maintenance is scheduled to be completed by 1600 EDT on Wednesday, April 6, 2011.
"The licensee has notified the NRC Resident Inspector.
"This notification is being made in accordance with 10CFR50.72(b)(3)(xiii) due to the loss of an emergency response facility." | |