Event Notification Report for July 07, 2022
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/06/2022 - 07/07/2022
Power Reactor
Event Number: 55981
Facility: Cooper
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: Roy Giles
HQ OPS Officer: Kerby Scales
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: Roy Giles
HQ OPS Officer: Kerby Scales
Notification Date: 07/07/2022
Notification Time: 22:49 [ET]
Event Date: 07/07/2022
Event Time: 16:01 [CDT]
Last Update Date: 07/07/2022
Notification Time: 22:49 [ET]
Event Date: 07/07/2022
Event Time: 16:01 [CDT]
Last Update Date: 07/07/2022
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):
Proulx, David (R4DO)
Proulx, David (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 98 | Power Operation | 98 | Power Operation |
LOSS OF NATIONAL WARNING SYSTEM TOWER
The following information was provided by the licensee via phone and fax:
"On 7/7/2022, at 0740 CDT, the National Weather Service reported to Cooper Nuclear Station that the NAWAS [(National Warning System)] radio tower near Shubert, Nebraska would neither transmit nor receive. The Shubert Tower transmitter activates the EAS [(Emergency Alert System)]/Tone Alert Radios used for public notification. Additional information from the National Weather Service received 7/7/2022 at 1601 [CDT] determined that the Shubert Tower transmitter is non-functional and would not likely be repaired within 24 hours. The backup notification system has been verified to be available throughout this period.
"This is considered to be a major loss of the Public Prompt Notification System capability. The primary notification system is not expected to be restored to service within 24 hours, and therefore this condition is reportable under 10 CFR 50.72(b)(3)(xiii), since the backup alerting methods do not meet the primary system design objective. The backup notification system is available to use for notifications if needed.
"The NRC Senior Resident has been informed."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The backup notification system has to be manually activated.
The following information was provided by the licensee via phone and fax:
"On 7/7/2022, at 0740 CDT, the National Weather Service reported to Cooper Nuclear Station that the NAWAS [(National Warning System)] radio tower near Shubert, Nebraska would neither transmit nor receive. The Shubert Tower transmitter activates the EAS [(Emergency Alert System)]/Tone Alert Radios used for public notification. Additional information from the National Weather Service received 7/7/2022 at 1601 [CDT] determined that the Shubert Tower transmitter is non-functional and would not likely be repaired within 24 hours. The backup notification system has been verified to be available throughout this period.
"This is considered to be a major loss of the Public Prompt Notification System capability. The primary notification system is not expected to be restored to service within 24 hours, and therefore this condition is reportable under 10 CFR 50.72(b)(3)(xiii), since the backup alerting methods do not meet the primary system design objective. The backup notification system is available to use for notifications if needed.
"The NRC Senior Resident has been informed."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The backup notification system has to be manually activated.
Agreement State
Event Number: 55982
Rep Org: Wisconsin Radiation Protection
Licensee: 3M Company
Region: 3
City: Menomonie State: WI
County:
License #: 033-2030-01
Agreement: Y
Docket:
NRC Notified By: Kyle Walton
HQ OPS Officer: Brian Lin
Licensee: 3M Company
Region: 3
City: Menomonie State: WI
County:
License #: 033-2030-01
Agreement: Y
Docket:
NRC Notified By: Kyle Walton
HQ OPS Officer: Brian Lin
Notification Date: 07/08/2022
Notification Time: 12:19 [ET]
Event Date: 07/07/2022
Event Time: 00:00 [CDT]
Last Update Date: 07/08/2022
Notification Time: 12:19 [ET]
Event Date: 07/07/2022
Event Time: 00:00 [CDT]
Last Update Date: 07/08/2022
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Lafranzo, Michael (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Lafranzo, Michael (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
EN Revision Imported Date: 7/11/2022
EN Revision Text: AGREEMENT STATE REPORT - STUCK OPEN SHUTTER
The following information was received from the Wisconsin Department of Health Services via email:
"On July 8, 2022, the State was contacted by a representative of the licensee to report a radiation event that had been identified on July 7. The licensee was performing routine checks on a fixed gauge device, and the individual servicing the gauge identified that the shutter was unable to be closed. All indicators are functioning as required to alert that the gauge is open. The device is believed to have been stuck open for approximately 13 hours. Staff who work in the area have been instructed that the device is unable to be closed, and to avoid working around the gauge even when it is not being utilized. The device is a Mahlo Model 11-200933, [serial number] SN: 11-011988. It contains an Eckert and Ziegler Pm-147 [Model] PHC.C1 source, SN:AH-4968. It has an assay date of April 15, 2016, 1000 mCi. It currently contains approximately 193 mCi. The licensee performed a dose reconstruction of any individual who would have been at the 8 foot boundary of the gauge, which indicates minimal exposure. The manufacturer was notified and is currently coordinating with the licensee to get a service engineer on site. The department will continue to follow-up with the licensee."
WI incident no.: WI220014
EN Revision Text: AGREEMENT STATE REPORT - STUCK OPEN SHUTTER
The following information was received from the Wisconsin Department of Health Services via email:
"On July 8, 2022, the State was contacted by a representative of the licensee to report a radiation event that had been identified on July 7. The licensee was performing routine checks on a fixed gauge device, and the individual servicing the gauge identified that the shutter was unable to be closed. All indicators are functioning as required to alert that the gauge is open. The device is believed to have been stuck open for approximately 13 hours. Staff who work in the area have been instructed that the device is unable to be closed, and to avoid working around the gauge even when it is not being utilized. The device is a Mahlo Model 11-200933, [serial number] SN: 11-011988. It contains an Eckert and Ziegler Pm-147 [Model] PHC.C1 source, SN:AH-4968. It has an assay date of April 15, 2016, 1000 mCi. It currently contains approximately 193 mCi. The licensee performed a dose reconstruction of any individual who would have been at the 8 foot boundary of the gauge, which indicates minimal exposure. The manufacturer was notified and is currently coordinating with the licensee to get a service engineer on site. The department will continue to follow-up with the licensee."
WI incident no.: WI220014
Agreement State
Event Number: 55984
Rep Org: Iowa Department of Public Health
Licensee: 3M
Region: 3
City: Knoxville State: IA
County:
License #: 0042163FG
Agreement: Y
Docket:
NRC Notified By: Derek Elling
HQ OPS Officer: Brian Lin
Licensee: 3M
Region: 3
City: Knoxville State: IA
County:
License #: 0042163FG
Agreement: Y
Docket:
NRC Notified By: Derek Elling
HQ OPS Officer: Brian Lin
Notification Date: 07/08/2022
Notification Time: 17:38 [ET]
Event Date: 07/07/2022
Event Time: 15:15 [CDT]
Last Update Date: 07/08/2022
Notification Time: 17:38 [ET]
Event Date: 07/07/2022
Event Time: 15:15 [CDT]
Last Update Date: 07/08/2022
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Lafranzo, Michael (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Lafranzo, Michael (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - STUCK OPEN SHUTTER
The following information was received from the Iowa Department of Public Health (IDPH) via email:
"At 1515 CDT, July 7, 2022, an NDC Technologies, Model 302 fixed gauge with [approximately] 80 mCi of Kr-85 had a shutter stick open when the line was turned off. The shutter was first identified as stuck open around 1600 when the Radiation Safety Officer was conducting their entrance radiation survey. Radiation safety perimeter was established. The service provider was called and arrived the morning of July 8, 2022. They were able to close the shutter but unable to conduct cause analysis. The gauge will be shipped back to vendor to safely analyze for cause. The IDPH will decide on a reactive inspection based on the cause of stuck shutter identified by the vendor.
Licensee aware of 30 day written notification requirement."
IA incident no.: IA220004
The following information was received from the Iowa Department of Public Health (IDPH) via email:
"At 1515 CDT, July 7, 2022, an NDC Technologies, Model 302 fixed gauge with [approximately] 80 mCi of Kr-85 had a shutter stick open when the line was turned off. The shutter was first identified as stuck open around 1600 when the Radiation Safety Officer was conducting their entrance radiation survey. Radiation safety perimeter was established. The service provider was called and arrived the morning of July 8, 2022. They were able to close the shutter but unable to conduct cause analysis. The gauge will be shipped back to vendor to safely analyze for cause. The IDPH will decide on a reactive inspection based on the cause of stuck shutter identified by the vendor.
Licensee aware of 30 day written notification requirement."
IA incident no.: IA220004