The following was received from the State of
Arizona via email:
The Agency [State of Arizona] was informed by the Licensee at approximately 2:45 PM [MDT], April 22, 2014 that at approximately 2:00 PM a worker had lost a Campbell-Pacific Model MC-1, SN MD41007631 moisture density gauge off a pickup truck. The worker forgot to close the tailgate. The gauge contained 10 millicuries of Cesium 137 and 50 millicuries of Americium 241. At approximately 3:15 PM, the Mesa Fire Department reported they had possession of a gauge found on a freeway near the work site.
A review of the situation confirmed that this was the lost source by the Licensee. The Agency [State of Arizona] has released the gauge to the Licensee for leak testing.
The NRC, FBI and Governor's Offices are being notified of this event.
The Agency continues to investigate this event.
First Notice: 14-008
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