Event Notification Report for October 24, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/23/2023 - 10/24/2023
Agreement State
Event Number: 56812
Rep Org: California Radiation Control Prgm
Licensee: Barnett Quality Control Services
Region: 4
City: San Diego State: CA
County:
License #: 7732-37
Agreement: Y
Docket:
NRC Notified By: Robert Greger
HQ OPS Officer: Thomas Herrity
Licensee: Barnett Quality Control Services
Region: 4
City: San Diego State: CA
County:
License #: 7732-37
Agreement: Y
Docket:
NRC Notified By: Robert Greger
HQ OPS Officer: Thomas Herrity
Notification Date: 10/24/2023
Notification Time: 19:58 [ET]
Event Date: 10/24/2023
Event Time: 00:00 [PDT]
Last Update Date: 10/24/2023
Notification Time: 19:58 [ET]
Event Date: 10/24/2023
Event Time: 00:00 [PDT]
Last Update Date: 10/24/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Deese, Rick (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Deese, Rick (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - DAMAGED MOISTURE DENSITY GAUGE
The following was received from the California Department of Public Health (CDPH) via email:
"On October 24, 2023, the Radiation Safety Officer (RSO) of Barnett Quality Control Services, contacted the California Department of Public Health (CDPH) regarding a moisture density gauge that was struck by a front loader at a construction site while the Cs-137 source was in the extended position. The gauge was a Troxler Model 3440, serial number 15052 (8 millicuries (nominal) Cs-137, 40 millicuries (nominal) Am:Be-241). The impact with the gauge resulted in the top section of the index rod breaking off. The source rod and the body of the gauge were intact (including the Am:Be-241 source). The RSO was contacted and responded to the scene of the incident. The RSO was able to place the Cs-137 source in the shielded position, but the section of the index rod that allowed the source rod to be locked in the shielded position was missing. The RSO was instructed by a CDPH inspector to secure the source with duct tape on the source handle and at the bottom opening to prevent the source from shifting from the shielded position. The RSO was also instructed to perform a radiation survey of the area of the incident after moving the gauge to ensure that the radioactive sources were not left behind. The licensee's investigation into this event is ongoing and will be reviewed further by the California Department of Public Health."
There were no reports of contamination or exposure to personnel.
California Incident (5010) Number: 102423
The following was received from the California Department of Public Health (CDPH) via email:
"On October 24, 2023, the Radiation Safety Officer (RSO) of Barnett Quality Control Services, contacted the California Department of Public Health (CDPH) regarding a moisture density gauge that was struck by a front loader at a construction site while the Cs-137 source was in the extended position. The gauge was a Troxler Model 3440, serial number 15052 (8 millicuries (nominal) Cs-137, 40 millicuries (nominal) Am:Be-241). The impact with the gauge resulted in the top section of the index rod breaking off. The source rod and the body of the gauge were intact (including the Am:Be-241 source). The RSO was contacted and responded to the scene of the incident. The RSO was able to place the Cs-137 source in the shielded position, but the section of the index rod that allowed the source rod to be locked in the shielded position was missing. The RSO was instructed by a CDPH inspector to secure the source with duct tape on the source handle and at the bottom opening to prevent the source from shifting from the shielded position. The RSO was also instructed to perform a radiation survey of the area of the incident after moving the gauge to ensure that the radioactive sources were not left behind. The licensee's investigation into this event is ongoing and will be reviewed further by the California Department of Public Health."
There were no reports of contamination or exposure to personnel.
California Incident (5010) Number: 102423
Power Reactor
Event Number: 56813
Facility: Turkey Point
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: Richard Jackson
HQ OPS Officer: Michael Bloodgood
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: Richard Jackson
HQ OPS Officer: Michael Bloodgood
Notification Date: 10/25/2023
Notification Time: 01:12 [ET]
Event Date: 10/24/2023
Event Time: 21:59 [EDT]
Last Update Date: 10/25/2023
Notification Time: 01:12 [ET]
Event Date: 10/24/2023
Event Time: 21:59 [EDT]
Last Update Date: 10/25/2023
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical 50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical 50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
Person (Organization):
Miller, Mark (R2DO)
Miller, Mark (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
AUTOMATIC REACTOR TRIP
The following information was provided by the licensee via email:
"At 2159 on 10/24/2023, with Unit 3 in Mode 1 at 100 percent power, the reactor was automatically tripped due to an actuation signal into the Unit 3 reactor protection system protection rack during maintenance. The trip was uncomplicated with all systems responding normally post trip. Decay heat is being removed via auxiliary feed water system and the steam dump system. Unit 4 is not affected.
"This event is being reported pursuant to 10CFR50.72(b)(2)(iv)(B) and 10CFR50.72(b)(3)(iv)(A). The NRC Resident Inspector has been notified.
"The cause of the automatic reactor trip will be investigated by the licensee."
The following information was provided by the licensee via email:
"At 2159 on 10/24/2023, with Unit 3 in Mode 1 at 100 percent power, the reactor was automatically tripped due to an actuation signal into the Unit 3 reactor protection system protection rack during maintenance. The trip was uncomplicated with all systems responding normally post trip. Decay heat is being removed via auxiliary feed water system and the steam dump system. Unit 4 is not affected.
"This event is being reported pursuant to 10CFR50.72(b)(2)(iv)(B) and 10CFR50.72(b)(3)(iv)(A). The NRC Resident Inspector has been notified.
"The cause of the automatic reactor trip will be investigated by the licensee."