Event Notification Report for September 22, 2011
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/21/2011 - 09/22/2011
Power Reactor
Event Number: 47287
Facility: VOGTLE
Region: 2 State: GA
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: MICHAEL BRILL
HQ OPS Officer: STEVE SANDIN
Region: 2 State: GA
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: MICHAEL BRILL
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/22/2011
Notification Time: 10:29 [ET]
Event Date: 09/22/2011
Event Time: 05:27 [EDT]
Last Update Date: 09/22/2011
Notification Time: 10:29 [ET]
Event Date: 09/22/2011
Event Time: 05:27 [EDT]
Last Update Date: 09/22/2011
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):
MARK LESSER (R2DO)
MARK LESSER (R2DO)
| 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 | N | 0 | Refueling | 0 | Refueling |
TECHNICAL SUPPORT CENTER NON-FUNCTIONAL DUE TO THE LOSS OF THE TSC CHILLER SYSTEM
"A condition is being reported per Technical Requirements Manual 13.13.1 Emergency Response Facilities Action B.2. The Functionality of the Technical Support Center (TSC) has been lost due to a trip of the TSC Chiller System supply breaker. Alternate facilities are available to provide emergency response functions and actions are proceeding to return the TSC to FUNCTIONAL status with high priority.
"The NRC Resident Inspector has been notified."
* * * UPDATE FROM BILL DUNN TO CHARLES TEAL ON 9/22/11 AT 2039 EDT * * *
The TSC has been returned to service at 2000 EDT.
Notified R2DO (Lesser).
"A condition is being reported per Technical Requirements Manual 13.13.1 Emergency Response Facilities Action B.2. The Functionality of the Technical Support Center (TSC) has been lost due to a trip of the TSC Chiller System supply breaker. Alternate facilities are available to provide emergency response functions and actions are proceeding to return the TSC to FUNCTIONAL status with high priority.
"The NRC Resident Inspector has been notified."
* * * UPDATE FROM BILL DUNN TO CHARLES TEAL ON 9/22/11 AT 2039 EDT * * *
The TSC has been returned to service at 2000 EDT.
Notified R2DO (Lesser).
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 47288
Facility: PILGRIM
Region: 1 State: MA
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: MIKE HETTWER
HQ OPS Officer: VINCE KLCO
Region: 1 State: MA
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: MIKE HETTWER
HQ OPS Officer: VINCE KLCO
Notification Date: 09/22/2011
Notification Time: 22:20 [ET]
Event Date: 09/22/2011
Event Time: 14:52 [EDT]
Last Update Date: 11/20/2011
Notification Time: 22:20 [ET]
Event Date: 09/22/2011
Event Time: 14:52 [EDT]
Last Update Date: 11/20/2011
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
Person (Organization):
CHRISTOPHER NEWPORT (R1DO)
CHRISTOPHER NEWPORT (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 |
SALT SERVICE WATER PUMP INOPERABILITY DURING POSTULATED DEGRADED VOLTAGE CONDITIONS
"On Thursday, September 22, 2011 at 1452 [EDT], with the reactor at 100% core thermal power and steady state conditions, Pilgrim Nuclear Power Station (PNPS) conservatively declared both Salt Service Water (SSW) subsystems inoperable when engineering analysis determined that inrush current on pump restart may exceed the thermal overload trip relay settings during certain degraded voltage conditions. A 24-hour Limiting Condition for Operation action statement was entered.
"Entergy/Pilgrim is in the process of implementing temporary modifications to correct this issue. This potential concern has no impact on public health and safety. This 8-hour notification is being conservatively reported in accordance with 10 CFR50.72(b)(3)(ii)(B).
"The NRC Resident Inspector has been notified."
The licensee will notify the Massachusetts Emergency Management Center.
* * * RETRACTION FROM DAVID NOYES TO VINCE KLCO ON 11/20/2011 AT 0733 EST* * *
"Event Notification 47288 was conservatively made to ensure that the Eight-Hour Non-Emergency reporting requirements of 10 CFR 50.72 were satisfied pending further evaluation of Salt Service Water (SSW) subsystem operability during certain degraded voltage conditions.
"Pilgrim Station has subsequently evaluated the impact of the Salt Service Water (SSW) pump motor operating load; potential degraded voltage conditions on thermal overload settings; and pump motor restart requirements; and determined that reasonable assurance of SSW subsystem operability existed. Both SSW subsystems were evaluated to be capable of satisfying the system safety function of providing cooling water to the Reactor Building Closed Cooling Water System heat exchangers during accident and transient conditions. Pilgrim 's evaluation considered manufacturer's data for the thermal overload relays, site specific shop testing, and reliable grid conditions which minimize the potential for extended operation with 4 kV buses operating at just above degraded voltage relay trip settings. This past operability evaluation concluded that the SSW pumps would support continuous operation of the SSW subsystems.
"Therefore, the initial 50.72 report is being retracted."
The licensee will notify the NRC Resident Inspector.
Notified the R1DO (Caruso).
"On Thursday, September 22, 2011 at 1452 [EDT], with the reactor at 100% core thermal power and steady state conditions, Pilgrim Nuclear Power Station (PNPS) conservatively declared both Salt Service Water (SSW) subsystems inoperable when engineering analysis determined that inrush current on pump restart may exceed the thermal overload trip relay settings during certain degraded voltage conditions. A 24-hour Limiting Condition for Operation action statement was entered.
"Entergy/Pilgrim is in the process of implementing temporary modifications to correct this issue. This potential concern has no impact on public health and safety. This 8-hour notification is being conservatively reported in accordance with 10 CFR50.72(b)(3)(ii)(B).
"The NRC Resident Inspector has been notified."
The licensee will notify the Massachusetts Emergency Management Center.
* * * RETRACTION FROM DAVID NOYES TO VINCE KLCO ON 11/20/2011 AT 0733 EST* * *
"Event Notification 47288 was conservatively made to ensure that the Eight-Hour Non-Emergency reporting requirements of 10 CFR 50.72 were satisfied pending further evaluation of Salt Service Water (SSW) subsystem operability during certain degraded voltage conditions.
"Pilgrim Station has subsequently evaluated the impact of the Salt Service Water (SSW) pump motor operating load; potential degraded voltage conditions on thermal overload settings; and pump motor restart requirements; and determined that reasonable assurance of SSW subsystem operability existed. Both SSW subsystems were evaluated to be capable of satisfying the system safety function of providing cooling water to the Reactor Building Closed Cooling Water System heat exchangers during accident and transient conditions. Pilgrim 's evaluation considered manufacturer's data for the thermal overload relays, site specific shop testing, and reliable grid conditions which minimize the potential for extended operation with 4 kV buses operating at just above degraded voltage relay trip settings. This past operability evaluation concluded that the SSW pumps would support continuous operation of the SSW subsystems.
"Therefore, the initial 50.72 report is being retracted."
The licensee will notify the NRC Resident Inspector.
Notified the R1DO (Caruso).
Power Reactor
Event Number: 47289
Facility: SAN ONOFRE
Region: 4 State: CA
Unit: [] [2] [3]
RX Type: [1] W-3-LP,[2] CE,[3] CE
NRC Notified By: DOUGLAS FOOTE
HQ OPS Officer: STEVE SANDIN
Region: 4 State: CA
Unit: [] [2] [3]
RX Type: [1] W-3-LP,[2] CE,[3] CE
NRC Notified By: DOUGLAS FOOTE
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/23/2011
Notification Time: 00:27 [ET]
Event Date: 09/22/2011
Event Time: 17:30 [PDT]
Last Update Date: 09/26/2011
Notification Time: 00:27 [ET]
Event Date: 09/22/2011
Event Time: 17:30 [PDT]
Last Update Date: 09/26/2011
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):
WAYNE WALKER (R4DO)
WAYNE WALKER (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 3 | N | Y | 100 | Power Operation | 100 | Power Operation |
OFFSITE NOTIFICATION TO COUNTY AGENCY DUE TO INADVERTENT WASTEWATER DISCHARGE
"This notification is for San Onofre Units 2 and 3, and is being made in accordance with 10CFR50.72(b)(2)(xi) to report a notification to another government agency regarding a spill of approximately 26000 gallons of untreated waste water (sewage).
"A pending report will be made to the San Diego County Dept. of Environmental Health regarding a untreated (sewage) waste water spill that occurred as San Onofre. The details that were communicated to the DEH are that at 1730 PDT a sewage spill was identified at SONGS in the North Industrial yard area. The leak was being collected in the yard drains and being discharged to the ocean. The sump discharge system has been secured stopping the release."
The licensee will inform the NRC Resident Inspector.
* * * UPDATE FROM LEE KELLY TO JOHN KNOKE AT 1325 EDT ON 9/26/11 * * *
"On September 22, 2011, an untreated (sewage) waste water spill was discovered in the San Onofre North Industrial Area. Southern California Edison (SCE) notified the NRC at 1730 PDT on September 22, 2011, (Event No. 47289) in accordance with 10CFR50.72(b)(2)(xi). The California Emergency Management Agency was notified (Control #11-5652) at 2223 PDT and San Diego County Department of Environmental Health (DEH) was notified at 2239 PDT. The initial report to the NRC indicated the spill was approximately 26,000 gallons. The estimated size of the spill has subsequently been revised to approximately 7,000 gallons.
"At the time of the event, Units 2 and 3 were at 100 percent power. SCE notified the NRC Resident Inspectors about this occurrence and will provide them with a copy of this report."
Notified the R4DO (Greg Werner).
"This notification is for San Onofre Units 2 and 3, and is being made in accordance with 10CFR50.72(b)(2)(xi) to report a notification to another government agency regarding a spill of approximately 26000 gallons of untreated waste water (sewage).
"A pending report will be made to the San Diego County Dept. of Environmental Health regarding a untreated (sewage) waste water spill that occurred as San Onofre. The details that were communicated to the DEH are that at 1730 PDT a sewage spill was identified at SONGS in the North Industrial yard area. The leak was being collected in the yard drains and being discharged to the ocean. The sump discharge system has been secured stopping the release."
The licensee will inform the NRC Resident Inspector.
* * * UPDATE FROM LEE KELLY TO JOHN KNOKE AT 1325 EDT ON 9/26/11 * * *
"On September 22, 2011, an untreated (sewage) waste water spill was discovered in the San Onofre North Industrial Area. Southern California Edison (SCE) notified the NRC at 1730 PDT on September 22, 2011, (Event No. 47289) in accordance with 10CFR50.72(b)(2)(xi). The California Emergency Management Agency was notified (Control #11-5652) at 2223 PDT and San Diego County Department of Environmental Health (DEH) was notified at 2239 PDT. The initial report to the NRC indicated the spill was approximately 26,000 gallons. The estimated size of the spill has subsequently been revised to approximately 7,000 gallons.
"At the time of the event, Units 2 and 3 were at 100 percent power. SCE notified the NRC Resident Inspectors about this occurrence and will provide them with a copy of this report."
Notified the R4DO (Greg Werner).