The State provided the following information via email:
On March 25, 2008, a Troxler M/D gauge, Model 3411, Serial Number 6520 was stolen from a URS company pick up truck during the evening. According to the RSO, the gauge was stolen from inside a locked container, which was stored in a locked camper shell, within a locked gated garage at the employees residence. The employee had taken the gauge to his residence in preparation for an early morning job. The density gauge was stated to contain approximately 9 mCi of Cesium 137 and 44 mCi of Americium 241.
CA Report #032608
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.