Event Notification Report for February 19, 2011
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/18/2011 - 02/19/2011
Power Reactor
Event Number: 46626
Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [1] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: GREG ELKINS
HQ OPS Officer: BILL HUFFMAN
Region: 1 State: NY
Unit: [1] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: GREG ELKINS
HQ OPS Officer: BILL HUFFMAN
Notification Date: 02/19/2011
Notification Time: 06:10 [ET]
Event Date: 02/19/2011
Event Time: 00:50 [EST]
Last Update Date: 02/19/2011
Notification Time: 06:10 [ET]
Event Date: 02/19/2011
Event Time: 00:50 [EST]
Last Update Date: 02/19/2011
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
MARC FERDAS (R1DO)
MARC FERDAS (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
SAFETY PARAMETER DISPLAY SYSTEM INOPERABLE DUE TO PLANT COMPUTER PROBLEM
"At 1650 EST on Friday, February 18, 2011, the Unit 1 Plant Process Computer was taken out of service for a planned outage for pre-modification testing. The Process Computer was successfully restarted at 0040 on Saturday, February 19, and all Computer functions were operational. However, at 0058, the Unit 1 Control Room received the annunciator for the Process Computer trouble. At the same time, all Process Computer displays stopped updating, including Safety Parameter Display System SPDS.
"All Control Room panel indicators and annunciators continued to respond properly providing operators with non-computer based emergency assessment capability. An additional Plant Operator was called out in accordance with Technical Specification 6.2.2.a for minimum shift complement with the process computer out of service.
"Repairs were completed and the Plant Process Computer was returned to service at 0450 on February 19, 2011."
The licensee has notified the NRC Resident Inspector.
"At 1650 EST on Friday, February 18, 2011, the Unit 1 Plant Process Computer was taken out of service for a planned outage for pre-modification testing. The Process Computer was successfully restarted at 0040 on Saturday, February 19, and all Computer functions were operational. However, at 0058, the Unit 1 Control Room received the annunciator for the Process Computer trouble. At the same time, all Process Computer displays stopped updating, including Safety Parameter Display System SPDS.
"All Control Room panel indicators and annunciators continued to respond properly providing operators with non-computer based emergency assessment capability. An additional Plant Operator was called out in accordance with Technical Specification 6.2.2.a for minimum shift complement with the process computer out of service.
"Repairs were completed and the Plant Process Computer was returned to service at 0450 on February 19, 2011."
The licensee has notified the NRC Resident Inspector.
Power Reactor
Event Number: 46627
Facility: PALISADES
Region: 3 State: MI
Unit: [1] [] []
RX Type: [1] CE
NRC Notified By: NATE DEMASTER
HQ OPS Officer: VINCE KLCO
Region: 3 State: MI
Unit: [1] [] []
RX Type: [1] CE
NRC Notified By: NATE DEMASTER
HQ OPS Officer: VINCE KLCO
Notification Date: 02/19/2011
Notification Time: 22:24 [ET]
Event Date: 02/19/2011
Event Time: 19:20 [EST]
Last Update Date: 02/19/2011
Notification Time: 22:24 [ET]
Event Date: 02/19/2011
Event Time: 19:20 [EST]
Last Update Date: 02/19/2011
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):
LAURA KOZAK (R3DO)
LAURA KOZAK (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 |
OFFSITE NOTIFIECTION DUE TO INADVERTENT CHEMICAL DISCHARGE
"At 1920 [EST] on 2-19-11, a chemistry technician notified the Shift Manager that more than the expected amount of Sodium Bisulfite was inadvertently added to the Circulating Water System discharge. The Spill Prevention Control & Countermeasures (SPCC) Plan was referenced for required actions. 17 additional gallons of Sodium Bisulfite was discharged to surface waters of Lake Michigan. This amount of Sodium Bisulfite is less than the reportable quantity of 417 gallons per the SPCC Plan. However, since it was released to surface water (Lake Michigan), a notification to the District Water Quality Division (DWQD) was made at 2020 [EST] by the site's Senior Environmental Specialist (SES). The DWQD requested that additional notifications be made to state (Pollution Emergency Alert System - PEAS) and local (911 operator) agencies. PEAS was notified at 2020 [EST] by the SES and Van Buren County dispatch (911) was notified by the Control Room staff at 2047 [EST]."
The licensee notified the NRC Resident Inspector.
"At 1920 [EST] on 2-19-11, a chemistry technician notified the Shift Manager that more than the expected amount of Sodium Bisulfite was inadvertently added to the Circulating Water System discharge. The Spill Prevention Control & Countermeasures (SPCC) Plan was referenced for required actions. 17 additional gallons of Sodium Bisulfite was discharged to surface waters of Lake Michigan. This amount of Sodium Bisulfite is less than the reportable quantity of 417 gallons per the SPCC Plan. However, since it was released to surface water (Lake Michigan), a notification to the District Water Quality Division (DWQD) was made at 2020 [EST] by the site's Senior Environmental Specialist (SES). The DWQD requested that additional notifications be made to state (Pollution Emergency Alert System - PEAS) and local (911 operator) agencies. PEAS was notified at 2020 [EST] by the SES and Van Buren County dispatch (911) was notified by the Control Room staff at 2047 [EST]."
The licensee notified the NRC Resident Inspector.
Power Reactor
Event Number: 46642
Facility: FORT CALHOUN
Region: 4 State: NE
Unit: [1] [] []
RX Type: (1) CE
NRC Notified By: ERICK MATZKE
HQ OPS Officer: JOE O'HARA
Region: 4 State: NE
Unit: [1] [] []
RX Type: (1) CE
NRC Notified By: ERICK MATZKE
HQ OPS Officer: JOE O'HARA
Notification Date: 02/25/2011
Notification Time: 16:05 [ET]
Event Date: 02/19/2011
Event Time: 11:35 [CST]
Last Update Date: 02/25/2011
Notification Time: 16:05 [ET]
Event Date: 02/19/2011
Event Time: 11:35 [CST]
Last Update Date: 02/25/2011
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
VIVIAN CAMPBELL (R4DO)
VIVIAN CAMPBELL (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
EMERGENCY OPERATIONS FACILITY (EOF) WITHOUT POWER
"Recently obtained information determined that on Saturday February 19, 2011, there was a power loss to the Emergency Operations Facility (EOF) at North Omaha. The power loss lasted from 1135 to 1220 CST. The EOF Building was without power for that time period. The backup generator did not start. There was an electrical line down in the area.
"While performing preventive maintenance on the EOF Generator on Wednesday February 23, 2011, the technician determined that the EOF generator would not function. Maintenance personnel were contacted to troubleshoot the generator problem. The battery was determined to be defective and was replaced. The EOF generator was tested satisfactory.
"The EOF is required to be activated within one hour when required. The emergency plan does have provisions for an alternate to the EOF if required."
The NRC Resident Inspector has been notified.
"Recently obtained information determined that on Saturday February 19, 2011, there was a power loss to the Emergency Operations Facility (EOF) at North Omaha. The power loss lasted from 1135 to 1220 CST. The EOF Building was without power for that time period. The backup generator did not start. There was an electrical line down in the area.
"While performing preventive maintenance on the EOF Generator on Wednesday February 23, 2011, the technician determined that the EOF generator would not function. Maintenance personnel were contacted to troubleshoot the generator problem. The battery was determined to be defective and was replaced. The EOF generator was tested satisfactory.
"The EOF is required to be activated within one hour when required. The emergency plan does have provisions for an alternate to the EOF if required."
The NRC Resident Inspector has been notified.