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Home NRC Library Document Collections Events, Reports Associated with Event Notification Reports 2025

Event Notification Report for April 22, 2025

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
04/21/2025 - 04/22/2025

EVENT NUMBERS
57665 57673
Agreement State
Event Number: 57665
Rep Org: Utah Division of Radiation Control
Licensee: RB & G Engineering
Region: 4
City: Spanish Fork   State: UT
County:
License #: UT 2500170
Agreement: Y
Docket:
NRC Notified By: Phillip Goble
HQ OPS Officer: Brian P. Smith
Notification Date: 04/15/2025
Notification Time: 14:07 [ET]
Event Date: 04/15/2025
Event Time: 11:00 [MDT]
Last Update Date: 04/15/2025
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
Drake, James (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Event Text
AGREEMENT STATE REPORT - DAMAGED GAUGE

The following report was received by the Utah Department of Environmental Quality, Division of Waste Management and Radiation Control via email:

"On April 15, 2025, a testing crew was conducting density tests using a gauge with a cesium-137 source on a road that was closed and blocked off. A truck drove down the road at a high speed and almost hit the gauge operator and hit the gauge. Everyone within a 30-foot radius was evacuated. The licensee is waiting for some assistance. No clean-up has been performed, and it is unknown whether the source within the gauge has been ruptured or not."

Utah Event Number: UT250002


Power Reactor
Event Number: 57673
Facility: McGuire
Region: 2     State: NC
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Just Selepec
HQ OPS Officer: Ian Howard
Notification Date: 04/20/2025
Notification Time: 08:01 [ET]
Event Date: 04/20/2025
Event Time: 00:28 [EDT]
Last Update Date: 04/20/2025
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
Pearson, Laura (R2DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 0
Event Text
EMERGENCY CORE COOLING SYSTEM (ECCS) ACCUMULATORS INOPERABLE

The following information was provided by the licensee via phone and email:

"At 0028 EDT on 4/20/2025, it was discovered that all trains of the ECCS accumulators were simultaneously inoperable. Therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v). The safety function was restored at 0028 on 04/20/2025 and all required trains have been declared operable. There was no impact to the other unit.

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

The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:

The sample lines for each accumulator cold leg were open for inspection, which crossties the cold leg accumulator gas spaces. Upon discovery of this condition, the sample lines were subsequently closed, and the accumulators were declared operable.