ENS 54490
ENS Event | |
|---|---|
06:00 Jan 22, 2020 | |
| Title | Agreement State Report - Missing Self Luminous Signs Containing Tritium |
| Event Description | The following was received via phone notification from the State of Nebraska Department of Radiological Health (NDRH):
On January 22, 2020, the NDRH received notification in the mail that during the annual survey, the Gateway Mall identified that 2 self luminous signs were missing and 7 signs that were removed during construction were unaccounted for. These signs contained tritium (H3), originally in the amount of 11.5 Curies each. NDRH is going to follow-up on this event.
It was identified that eight of the tritium signs contained 11.5 Curies each and one of the signs contained 20 Curies. The Gateway Mall will follow up with the construction company to verify whether the signs have been properly disposed of as well as double checking with the maintenance shop to see if the report of the missing signs had been made in error. Notified R4DO (Silvia), ILTAB (email), and NMSS Events (email).
Gateway Mall General Manager was able to contact the construction company. It was determined that the signs had been removed from service by the construction company and stored at Gateway Mall. Signs reported missing in the maintenance shop were located as well. All nine signs have been located and accounted for. Notified R4DO (Silvia), ILTAB (email), and NMSS Events (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 |
| Where | |
|---|---|
| Ne Div Of Radioactive Materials Lincoln, Nebraska (NRC Region 4) | |
| License number: | GL0457 |
| Organization: | Ne Div Of Radioactive Materials |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+11.77 h0.49 days <br />0.0701 weeks <br />0.0161 months <br />) | |
| Opened: | Deb Wilson 17:46 Jan 22, 2020 |
| NRC Officer: | Thomas Kendzia |
| Last Updated: | Jan 23, 2020 |
| 54490 - NRC Website | |
Ne Div Of Radioactive Materials with Agreement State | |||
| Agreement State Report - Water Loss from Source Storage Pool ENS 546222020-03-05T05:00:0005 March 2020 05:00:00 Agreement State Agreement State Report - Stuck Open Shutter on Density Gauge ENS 545002020-01-29T06:00:00029 January 2020 06:00:00 Agreement State Agreement State Report - Lost Tritium Exit Signs ENS 544902020-01-22T06:00:00022 January 2020 06:00:00 Agreement State Agreement State Report - Missing Self Luminous Signs Containing Tritium ENS 547932019-04-20T05:00:00020 April 2019 05:00:00 Agreement State Agreement State Report - Lost Tritium Exit Sign ENS 548782012-05-31T05:00:00031 May 2012 05:00:00 Agreement State | 2020-09-09T21:29:00 [Table view] | ||