The following is a summary of information received from the State of Nebraska:
On March 26, 2019, the Nebraska Department of Radioactive Materials received a letter dated March 25, 2019, from the licensee (Flint Hills Resources) concerning the loss of two tritium exit signs, each with an activity of 17.51 Curies. Two H-3 exit signs were lost during recent construction of additional warehouse space on an existing building. One sign was over a personnel door on the wall demolished for the new space and one was on a personnel door proximal to the construction area.
NE Item Number: NE190002
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