The following information was received from the
California Department of Public Health, Radiologic Health Branch (
RHB) via email:
On Tuesday, December 21, 2021, Anbessaw Consulting, Inc. RSO [ ] reported the theft of a CPN MC-3 (#M320500859) containing sealed sources of Cs-137 (10 mCi) and Am-241:Be (50 mCi). The theft occurred overnight between Monday and Tuesday 12/20-21/2021 at an authorized gauge user's apartment complex located at 642 Montgomery Circle, Claremont, CA 91711. The AU discovered that his truck was broken into at approximately 0430 PST Tuesday 12/21/21, the truck was parked in a non-covered space in the apartment complex parking area. The AU had returned to his apartment from a jobsite in Glendora at 2100 PST Monday and was scheduled to return to the jobsite early on Tuesday. The CPN nuclear gauge handle was locked to prevent operation, the gauge was locked in its transport case, and the transport case was locked inside the truck cab. Other equipment and personal items were also stolen from the truck. A police report was filed with the Claremont police department (DR# 2103145). The licensee also submitted a reward ad in the local Daily Breeze stolen section which will run from 12/23-29/2021.
CA 5010 Number: 122121
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