The following was received from the State of
Wisconsin via email:
During an inventory on June 13, 2014, the licensee determined a total of 6 tritium exit signs were not accounted for at the facility. One 20 Ci SRB Technologies sign and five 11.5 Ci Safety Light Corporation signs were missing. Three of the signs are known to have been removed during a previous remodeling and are presumed to have been disposed of with the waste. The three other signs are missing from their normal locations. Maintenance staff have been alerted to the missing items and told to look for them in the storage areas. Additional training is being developed that will require any person who removes an exit sign, regardless of type, to return it to the Environmental, Health, and Safety Department for review prior to disposing. A plan is also in place to remove all tritium exit signs from the facility and replace with electrically wired signs. The Wisconsin Radiation Protection Section is continuing to monitor the situation.
Event Report ID: WI 140007
- * * UPDATE FROM KYLE WALTON TO JOHN SHOEMAKER AT 1630 EDT ON 7/1/14 * * *
The State of Wisconsin reported that one of the missing signs has been found and only two signs remain missing. The licensee will continue searching for the missing signs.
Notified the R3DO (McCraw) and FSME Events Resource via email.
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