The following is a summary of a phone call with the licensee:
During a recent NRC inspection, the Radiation Safety Officer (RSO) and the NRC inspector determined that 2 Exit Signs (H-3; 0.352 Bq each) were missing and could not be located. The RSO has been searching since the inspection and has yet to locate the signs. The RSO noted that the exit signs were ordered in 2009 but was unable to find any removal work orders and is unaware of any effort to dispose of the signs. The RSO is unsure how long the signs have been missing. The licensee notified the NRC Region III Office.
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