Event Notification Report for December 23, 2022
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/22/2022 - 12/23/2022
Power Reactor
Event Number: 56284
Facility: Davis Besse
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] B&W-R-LP
NRC Notified By: Matthew Allan
HQ OPS Officer: Mike Stafford
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] B&W-R-LP
NRC Notified By: Matthew Allan
HQ OPS Officer: Mike Stafford
Notification Date: 12/23/2022
Notification Time: 17:02 [ET]
Event Date: 12/23/2022
Event Time: 15:13 [EST]
Last Update Date: 12/23/2022
Notification Time: 17:02 [ET]
Event Date: 12/23/2022
Event Time: 15:13 [EST]
Last Update Date: 12/23/2022
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(i) - Plant S/D Reqd By Ts
10 CFR Section:
50.72(b)(2)(i) - Plant S/D Reqd By Ts
Person (Organization):
Kozak, Laura (R3DO)
Kozak, Laura (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 86 | Power Operation |
TECHNICAL SPECIFICATION REQUIRED SHUTDOWN
The following information was provided by the licensee via email:
"At 1513 EST on 12/23/22, a Technical Specification required shutdown was initiated at the Davis-Besse Nuclear Power Station Unit 1. Technical Specification [TS] Action Limiting Condition of Operation [LCO] 3.7.9 for Ultimate Heat Sink water level minimum requirements was not met and condition 'A' was entered on 12/23/22 at 1412 EST with a required action to `Be in Mode 3' with a completion time of 6 hours and `Be Mode 5' with a completion time of 36 hours. This event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(i). There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified.
"At 1640 on 12/23/22, the NRC granted enforcement discretion for the shutdown requirements of TS LCO 3.7.9 and the shutdown was terminated with the unit remaining in Mode 1."
The following information was provided by the licensee via email:
"At 1513 EST on 12/23/22, a Technical Specification required shutdown was initiated at the Davis-Besse Nuclear Power Station Unit 1. Technical Specification [TS] Action Limiting Condition of Operation [LCO] 3.7.9 for Ultimate Heat Sink water level minimum requirements was not met and condition 'A' was entered on 12/23/22 at 1412 EST with a required action to `Be in Mode 3' with a completion time of 6 hours and `Be Mode 5' with a completion time of 36 hours. This event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(i). There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified.
"At 1640 on 12/23/22, the NRC granted enforcement discretion for the shutdown requirements of TS LCO 3.7.9 and the shutdown was terminated with the unit remaining in Mode 1."
Agreement State
Event Number: 56323
Rep Org: California Radiation Control Prgm
Licensee: Nova Services, Inc.
Region: 4
City: San Diego State: CA
County:
License #: 7732-37
Agreement: Y
Docket:
NRC Notified By: Donald Oesterle
HQ OPS Officer: Bill Gott
Licensee: Nova Services, Inc.
Region: 4
City: San Diego State: CA
County:
License #: 7732-37
Agreement: Y
Docket:
NRC Notified By: Donald Oesterle
HQ OPS Officer: Bill Gott
Notification Date: 01/25/2023
Notification Time: 16:15 [ET]
Event Date: 12/23/2022
Event Time: 00:00 [PST]
Last Update Date: 01/25/2023
Notification Time: 16:15 [ET]
Event Date: 12/23/2022
Event Time: 00:00 [PST]
Last Update Date: 01/25/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Agrawal, Ami (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
MacDonald, Mark (ILTAB)
CNSNS (Mexico), (EMAIL)
Agrawal, Ami (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
MacDonald, Mark (ILTAB)
CNSNS (Mexico), (EMAIL)
AGREEMENT STATE REPORT - LOST/STOLEN TROXLER GAUGE
The following information was provided by the California Department of Public Health - Radiation Health Branch (RHB) via email:
"On December 23, 2022, an authorized user of Nova Services, Inc. completed his use of radioactive Troxler 3430 gauge, serial number-32415 and returned it to the temporary storage location [Redacted] in Marina Del Rey, CA. The radioactive gauge was stored until the next time needed for for a work project in Marina Del Rey on January 24, 2023, at which time the authorized user discovered that the radioactive gauge was not in the storage unit, and reported the loss/theft to his Field Supervisor. The Field Supervisor reported the theft to an Inspector from the [Radiologic Health Branch - Radioactive Materials Inspection, Investigation, Compliance, and Enforcement Section] RHB-ICE Brea Regional office. The investigation is ongoing to determine the status of the radioactive gauge and will be reported to the local law enforcement agency, as well as contacting local newspapers in an attempt to retrieve the stolen radioactive gauge, and notifying local servicing vendors of radioactive gauges to be alert for the serial number of the stolen gauge in case it turns up for service. The gauge has not been recovered.
"California 5010 Number: 012423"
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf
The following information was provided by the California Department of Public Health - Radiation Health Branch (RHB) via email:
"On December 23, 2022, an authorized user of Nova Services, Inc. completed his use of radioactive Troxler 3430 gauge, serial number-32415 and returned it to the temporary storage location [Redacted] in Marina Del Rey, CA. The radioactive gauge was stored until the next time needed for for a work project in Marina Del Rey on January 24, 2023, at which time the authorized user discovered that the radioactive gauge was not in the storage unit, and reported the loss/theft to his Field Supervisor. The Field Supervisor reported the theft to an Inspector from the [Radiologic Health Branch - Radioactive Materials Inspection, Investigation, Compliance, and Enforcement Section] RHB-ICE Brea Regional office. The investigation is ongoing to determine the status of the radioactive gauge and will be reported to the local law enforcement agency, as well as contacting local newspapers in an attempt to retrieve the stolen radioactive gauge, and notifying local servicing vendors of radioactive gauges to be alert for the serial number of the stolen gauge in case it turns up for service. The gauge has not been recovered.
"California 5010 Number: 012423"
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf