The following information was provided by the
California Department of Public Health via email:
Ninyo and Moore, a geotechnical and environmental sciences firm reported the theft of a Troxler 3430 moisture density gauge No. 38218, containing a Cs-137 sealed source of 0.3 GBq (8 mCi) and Am-241 sealed source of 1.48 GBq (40 mCi). The theft occurred from a temporary job site in Visalia, CA, The locked 10' X 20' Conex job box had the locks cut off and the entire secured Knack box containing the Type A transport container and gauge was taken. Construction tools totaling approximately $12,000 were stolen. Visalia Police Department was notified and an officer took a theft report and is looking for video surveillance in the area. Site security was not at the location at the time of the Sunday night theft.
California 5010 Number: 022222
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