The State provided the following information via facsimile:
The gauge was used at a jobsite at 35050 Halls Road, Clewiston, Florida on a Seminole Indian Reservation. After being used on the jobsite, the gauge was placed in a storage trailer. The gauge is a Model 3411B Troxler soil moisture density gauge, serial number 13563. The gauge contained a 8 millicurie Cs-137 source and a 40 millicurie Am-241:Be source.
Device was used Friday 03/02/07 and placed in a storage trailer. It was noticed missing when the trailer was opened 03/07/07 [in the morning]. The trailer had not been broken into. The Seminole Reservation authorities are investigating. Licensee will submit a written report. [State of] Florida will investigate within the limits of its authority.
FL Incident Number: FL07-039
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.