ENS 58025

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v t e ENS Event
20:30 Nov 4, 2025
Title	Damaged Gauge
Event Description	The following information was provided by the Oklahoma Department of Environmental Quality via email: The Oklahoma Department of Environmental Quality (DEQ) received a report from Kleinfelder, Inc. that a nuclear gauge [incident] occurred on November 4, 2025, at approximately [1430 CST] at the Atoka Pump Station Vault Pit Excavation Site. During site operations, a Kleinfelder vehicle struck a Humboldt nuclear gauge (serial number: 3753) when moving the vehicle to avoid a collision with an on-site excavator. At the time, the gauge was positioned behind the vehicle. The impact caused the source rod to break while in the retracted position. Immediate safety protocols were enacted as follows: The vehicle was left in place. All personnel were evacuated from the area. A 15-foot perimeter was established around the source using caution tape. Radiation survey meter readings were completed at the four cardinal points surrounding the portable nuclear gauge. At the truck perimeter: 0.00 mR/hr After the truck was moved (approximately 3 feet from the source): 0.02 mR/hr The gauge and broken source rod (in the retracted position) have been safely packed into the transport case and are currently stored [at a location in Oklahoma City]. In accordance with regulatory requirements, the incident was reported to the Oklahoma DEQ via their Incident Line (1-800-522-0206) at [1753 CST] on November 4, 2025. A leak test was conducted on November 5, 2025, and is currently being processed.

ENS 58025 +/-
Where
Kleinfelder, Inc. Atoka, Oklahoma (NRC Region 4)
License number:	OK-27597-02
Organization:	Ok Deq Rad Management
Reporting

Agreement State
Time - Person (Reporting Time:+18.8 h0.783 days <br />0.112 weeks <br />0.0258 months <br />)
Opened:	Michael Reid 15:18 Nov 5, 2025
NRC Officer:	Ernest West
Last Updated:	Nov 5, 2025
58025 - NRC Website
v • d • e

v t e Emergency Notification System
Kleinfelder, Inc. with Agreement State
WEEKMONTHYEAR2025-11-04T20:30:00 [Table view]
[ENS list for Kleinfelder, Inc.]

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