Event Notification Report for March 19, 2021

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
03/18/2021 - 03/19/2021

EVENT NUMBERS
55133 55136 55143
Agreement State
Event Number: 55133
Rep Org: LOUISIANA RADIATION PROTECTION DIV
Licensee: EPIC Piping, LLC
Region: 4
City: Livingston   State: LA
County:
License #: LA-13463-L01, Amendment 10, AI# 203655
Agreement: Y
Docket:
NRC Notified By: James Pate
HQ OPS Officer: Thomas Herrity
Notification Date: 03/11/2021
Notification Time: 13:50 [ET]
Event Date: 03/11/2021
Event Time: 00:00 [CST]
Last Update Date: 03/11/2021
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
JEFFREY JOSEY (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Event Text
AGREEMENT STATE REPORT - OVEREXPOSED WORKER

The following was received from the State of Louisiana via email:

"EPIC Piping, LLC contacted the Louisiana Department of Environmental Quality (LDEQ), Emergency and Radiological Services Division (ERSD), Radiation Section about a Landauer Badge Report indicating an exposure (real or threatened) greater than or equal to 5 Rem. The badge indicated a 7,232 mR exposure. The Landauer Badge Report covered dates of January 15 to February 15, 2021. The source was an Ir-192 using a QSA Global 880D industrial radiography camera. The facility uses permanent industrial radiography shooting cells. The radiographer used potentially different radiography cameras having different sources according to which shooting cell was being used that day."

Louisiana Event Report ID Number: LA 20210004


Agreement State
Event Number: 55136
Rep Org: FLORIDA BUREAU OF RADIATION CONTROL
Licensee: University of Florida
Region: 1
City: Jacksonville   State: FL
County:
License #: 0031-3
Agreement: Y
Docket:
NRC Notified By: Matthew Senison
HQ OPS Officer: Kerby Scales
Notification Date: 03/12/2021
Notification Time: 16:49 [ET]
Event Date: 03/12/2021
Event Time: 09:48 [EST]
Last Update Date: 03/12/2021
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
GRAY, MEL (R1)
NMSS_EVENTS_NOTIFICATION, (EMAIL)
Event Text
AGREEMENT STATE REPORT - PRESCRIBED UNDERDOSE

The following is a summary of an email from the state of Florida:

At 1600 [EST], the [Radiation Safety Officer] RSO called to report a radiation underdose. Following the procedure, the waste was collected and measured to calculate the actual activity delivered. The actual activity delivered was 0.76 GBq, 90 percent of the prescribed treatment dose. Post procedure, during the room survey, inside the Plexiglas Administration Box a high level of activity was detected. The box was placed in double bags and relocated to the waste storage area. An investigation into the event is ongoing to calculate the activity in the box following administration. No individuals were contaminated and there was no harm to the patient.

Florida Incident Number: FL21-038

A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.


Power Reactor
Event Number: 55143
Facility: Watts Bar
Region: 2     State: TN
Unit: [2] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Robert Collins
HQ OPS Officer: Thomas Kendzia
Notification Date: 03/17/2021
Notification Time: 12:59 [ET]
Event Date: 03/17/2021
Event Time: 10:04 [EST]
Last Update Date: 03/17/2021
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
Person (Organization):
MILLER, MARK (R2)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 A/R Y 90 Power Operation 0 Hot Standby
Event Text
AUTOMATIC REACTOR TRIP

"At 1004 EDT on March 17, 2021, with Unit 2 in Mode 1 at 90 percent power, the reactor automatically tripped due to a main turbine trip. The trip was not complex, with all systems responding normally post-trip.

"Operations responded and stabilized the plant. Decay heat is being removed by the Auxiliary Feedwater and Steam Dump Systems. Unit 1 is not affected.

"Due to the Reactor Protection System actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B). The expected actuation of the Auxiliary Feedwater System (an engineered safety feature) is being reported as an eight hour report under 10 CFR 50.72 (b)(3)(iv)(A).

"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."

All controls rods fully inserted and the electrical system is in normal shutdown alignment. The cause of the turbine trip is being investigated.