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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 56623 | 12 July 2023 07:00:00 | Agreement State | Lost Tritium Exit Signs | The following information is a summary of information received from the California Department of Public Health, Radiologic Health Branch via email: On July 12, 2023, Kaiser Medical Center of Southern California (the licensee) discovered that nine tritium exit signs were missing (Make: Shield, Model: SLX-60, Original activity: 10 Ci, tritium). The missing signs were exit signs at the licensee's parking garage. It has not been determined how the signs went missing after an engineering and security review. 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 |