Event Notification Report for April 29, 2021
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/28/2021 - 04/29/2021
Agreement State
Event Number: 55228
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: ENGEO Incorporated
Region: 4
City: Rohnert Park State: CA
County:
License #: 3016-07
Agreement: Y
Docket:
NRC Notified By: K. Arunika Hewadikaram
HQ OPS Officer: Joanna Bridge
Licensee: ENGEO Incorporated
Region: 4
City: Rohnert Park State: CA
County:
License #: 3016-07
Agreement: Y
Docket:
NRC Notified By: K. Arunika Hewadikaram
HQ OPS Officer: Joanna Bridge
Notification Date: 04/30/2021
Notification Time: 17:57 [ET]
Event Date: 04/29/2021
Event Time: 00:00 [PDT]
Last Update Date: 04/30/2021
Notification Time: 17:57 [ET]
Event Date: 04/29/2021
Event Time: 00:00 [PDT]
Last Update Date: 04/30/2021
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
PROULX, DAVID (R4DO)
ILTAB, (EMAIL)
NMSS_EVENTS_NOTIFICATION, (EMAIL)
CNSNS (MEXICO), - (FAX)
PROULX, DAVID (R4DO)
ILTAB, (EMAIL)
NMSS_EVENTS_NOTIFICATION, (EMAIL)
CNSNS (MEXICO), - (FAX)
EN Revision Imported Date: 5/28/2021
EN Revision Text: AGREEMENT STATE REPORT - STOLEN MOISTURE DENSITY GAUGE
The following was received via e-mail from the California Department of Public Health, Radiological Health Branch (RHB):
"On April 30, 2021, [The] ENGEO [Radiological Safety Officer] RSO contacted RHB to report a stolen moisture density gauge, a Troxler, Model 3440, S/N 26157 containing licensed material 9 mCi of Cs-137 and 44 mCi of Am-241. The gauge was stolen from one of their storage locations (Extra Space Storage). The gauge was last in their physical possession on April 22, 2021, and was secured in the facility at approximate 1430 PDT. The facility is secured by a common gate with access granted with an access key code with security cameras that log entering and exiting the facility. The storage unit was secured by a keyed master lock, and the equipment was locked to the inside of the unit with a chain and secured with at least 1 master lock.
"Since April 22, 2021, [the] staff has visited the unit on a couple of occasions, however [the staff] was not concerned at the time when the equipment was not observed in the unit which is common as the equipment is used during the day on a regular basis and also due to the lock to the unit being intact (showing no signs of forced entry). On April 29, 2021, the individual who the equipment is assigned to, returned to pick up the gauge and noticed someone had removed it. It was determined that no one from their company removed the gauge from the storage unit after it was secured on April 22, 2021. [The] licensee was unable to view security footage due to privacy of other customers. [The] licensee was told by the manager that he reviewed all footage of their staff entering and leaving the facility between April 22 and April 29 and he observed the staff return the gauge to the unit on April 22, and leave without the gauge in his vehicle after he secured it in the storage unit. [The] licensee has conducted an internal investigation into the location of the gauge and determined that no one with their organization removed the gauge in question. This appears to be consistent with the reported observations of the facility manager's review of security footage.
"[The] licensee has notified Rohnert Park Police Department of the stolen gauge (police report #21-1838). A cash reward has been offered for the safe return of the gauge.
"RHB will be following up on this investigation."
California Report Number: 043021
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
EN Revision Text: AGREEMENT STATE REPORT - STOLEN MOISTURE DENSITY GAUGE
The following was received via e-mail from the California Department of Public Health, Radiological Health Branch (RHB):
"On April 30, 2021, [The] ENGEO [Radiological Safety Officer] RSO contacted RHB to report a stolen moisture density gauge, a Troxler, Model 3440, S/N 26157 containing licensed material 9 mCi of Cs-137 and 44 mCi of Am-241. The gauge was stolen from one of their storage locations (Extra Space Storage). The gauge was last in their physical possession on April 22, 2021, and was secured in the facility at approximate 1430 PDT. The facility is secured by a common gate with access granted with an access key code with security cameras that log entering and exiting the facility. The storage unit was secured by a keyed master lock, and the equipment was locked to the inside of the unit with a chain and secured with at least 1 master lock.
"Since April 22, 2021, [the] staff has visited the unit on a couple of occasions, however [the staff] was not concerned at the time when the equipment was not observed in the unit which is common as the equipment is used during the day on a regular basis and also due to the lock to the unit being intact (showing no signs of forced entry). On April 29, 2021, the individual who the equipment is assigned to, returned to pick up the gauge and noticed someone had removed it. It was determined that no one from their company removed the gauge from the storage unit after it was secured on April 22, 2021. [The] licensee was unable to view security footage due to privacy of other customers. [The] licensee was told by the manager that he reviewed all footage of their staff entering and leaving the facility between April 22 and April 29 and he observed the staff return the gauge to the unit on April 22, and leave without the gauge in his vehicle after he secured it in the storage unit. [The] licensee has conducted an internal investigation into the location of the gauge and determined that no one with their organization removed the gauge in question. This appears to be consistent with the reported observations of the facility manager's review of security footage.
"[The] licensee has notified Rohnert Park Police Department of the stolen gauge (police report #21-1838). A cash reward has been offered for the safe return of the gauge.
"RHB will be following up on this investigation."
California Report Number: 043021
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
Power Reactor
Event Number: 55224
Facility: Peach Bottom
Region: 1 State: PA
Unit: [2] [] []
RX Type: [2] GE-4,[3] GE-4
NRC Notified By: Matthew George
HQ OPS Officer: Ossy Font
Region: 1 State: PA
Unit: [2] [] []
RX Type: [2] GE-4,[3] GE-4
NRC Notified By: Matthew George
HQ OPS Officer: Ossy Font
Notification Date: 04/30/2021
Notification Time: 07:38 [ET]
Event Date: 04/29/2021
Event Time: 23:54 [EDT]
Last Update Date: 04/30/2021
Notification Time: 07:38 [ET]
Event Date: 04/29/2021
Event Time: 23:54 [EDT]
Last Update Date: 04/30/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
SCHROEDER, DAN (R1)
SCHROEDER, DAN (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
EN Revision Imported Date: 5/28/2021
EN Revision Text: HIGH PRESSURE COOLANT INJECTION (HPCI) DECLARED INOPERABLE
"On 4/29/21 at 2354 [EDT], an alarm was received for U2 HPCI Inverter Power Failure. [It was] identified that the High Pressure Coolant Injection (HPCI) flow controller had lost power due to a failure of an inverter. Without the flow controller, HPCI would not auto start to mitigate the consequences of an accident; thus, HPCI was declared inoperable. All other emergency core cooling systems and reactor core isolation cooling (RCIC) system remain operable.
"HPCI is a single train system with no redundant equipment in the same system; therefore, this failure is reportable as an event or condition that could have prevented fulfillment of a safety function needed to mitigate the consequences of an accident per 10CFR50.72(b)(3)(v)(d).
"The NRC Resident has been informed of this notification."
EN Revision Text: HIGH PRESSURE COOLANT INJECTION (HPCI) DECLARED INOPERABLE
"On 4/29/21 at 2354 [EDT], an alarm was received for U2 HPCI Inverter Power Failure. [It was] identified that the High Pressure Coolant Injection (HPCI) flow controller had lost power due to a failure of an inverter. Without the flow controller, HPCI would not auto start to mitigate the consequences of an accident; thus, HPCI was declared inoperable. All other emergency core cooling systems and reactor core isolation cooling (RCIC) system remain operable.
"HPCI is a single train system with no redundant equipment in the same system; therefore, this failure is reportable as an event or condition that could have prevented fulfillment of a safety function needed to mitigate the consequences of an accident per 10CFR50.72(b)(3)(v)(d).
"The NRC Resident has been informed of this notification."