The following information was provided by the
California Radiologic Health Branch via email:
The RSO and Vice President of NMG Geotechnical, Inc. notified the California Radiologic Health Branch that two moisture density gauges had been stolen over the weekend (August 30 - Sept 2, 2024) from a locked trailer at their jobsite. Other construction equipment was also stolen. Thieves removed security bars from a window to enter and exit the trailer. The two gauges were secured within separate locked cabinets inside the trailer, inside their locked transportation cases that has company name and contact number affixed.
The Troxler model 3411, number 12325 contains 8 millicurie of Cs-137 and 40 millicurie of Am-241/Be sealed sources. The CPN MC-3 Elite contains 10 millicurie of Cs-137 and 50 millicurie of Am-241/Be sealed sources. A trigger lock on the CPN gauge was not engaged and the Troxler did not have a trigger padlock.
Irvine Police Department was notified of the theft. Maurer Technical Services was also notified. NMG Geotechnical will post a reward for information leading to the return of the stolen equipment.
California 5010 Number: 090324
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