The following is a summary of information provided by the
Kansas Department of Health and Environment (KDHE) via email:
On June 9, 2025, at 0310 CDT, licensee employees discovered that a work trailer had been forcibly entered, and several items stolen including a moisture density gauge. The gauge, a Humboldt 5001 EZ (serial number 10103) containing 11 mCi of Cs-137 and 44 mCi of Am-241/Be, had last been verified onsite on June 6, 2025, around 1730. The theft was reported to KDHE and Kansas City Police Department.
Kansas Event Number: KS250005
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