ENS 57716

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v t e ENS Event
07:00 May 16, 2025
Title	Lost Moisture Density Gauge
Event Description	The following information was provided by the California Department of Public Health, Radiologic Health Branch (the Department) via email: The Department was notified by Krazan and Associates' radiation safety officer that a Troxler model 3430 gauge (8 mCi Cs-137, 40 mCi Am-241/Be, serial number 35944) was lost from a gauge operator's vehicle in the city of El Cajon, CA. The gauge operator finished work and placed the gauge into the Troxler transit case without engaging the trigger lock on the gamma source's handle or locking the transit box latch. The transit case was left in the pickup truck bed next to the security box that is normally used during transportation. The gauge operator was distracted by a cell phone call and failed to return to secure the gauge and lift/secure the tailgate. The gauge operator drove the vehicle until recalling that the gauge was not secured, but it had already fallen from the truck. The operator retraced the route and eventually found the Troxler transit case on the side of the road, but the moisture density gauge, all associated tools, and paperwork from inside were missing. The licensee has notified local law enforcement and posted a reward on the City of El Cajon's social media page. California event number: 051625 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

ENS 57716 +/-
Where
Krazan &Amp; Associates Inc.Property "Site" (as page type) with input value "Krazan &Amp; Associates Inc." contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process. El Centro, California (NRC Region 4)
License number:	6809-33
Organization:	California Dept Of Public Health
Reporting

Agreement State
Time - Person (Reporting Time:+12.5 h0.521 days <br />0.0744 weeks <br />0.0171 months <br />)
Opened:	Donald Oesterle 19:30 May 16, 2025
NRC Officer:	Robert A. Thompson
Last Updated:	May 16, 2025
57716 - NRC Website
v • d • e

v t e Emergency Notification System
with Agreement State
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