The
Nebraska Office of Radiological Health provided the following report via e-mail:
The [Kellogg USA] facility was not able to locate four H-3 exit signs (SRB Model BXU20WS containing 17.51 Curies [each] of H-3, for serial #'s 217897, 217965, & SRB Model B100BX20 containing 17.51 Curies [each] of H-3 for serial #'s 220063 and 220071) while completing their annual inventory. They have made a number of searches and can not locate the four missing signs. The company is planning on the removal and proper disposal of all H-3 exit signs in the facility by 8/31/2009. The facility has 230 plus exit signs.
Nebraska Report NE090010
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.