ENS Event | |
|---|---|
06:00 Oct 1, 2023 | |
| Title | Agreement State - Lost/Missing Source |
| Event Description | The following information was provided by the Illinois Emergency Management Agency (the Agency) via phone and email:
On December 13, 2024, the Agency was advised of a licensee that returned an Agency invoice and informed fiscal that they were a closed location. A review of the license and most recent inspection report (April 2021) showed that the licensee was in possession of (1) Cs-137 sealed source. Agency staff conducted a reactive inspection which continued through January 16, 2025, and after extensive investigation, including radiation surveys conducted at the site and interviews of personnel involved, the source could not be traced or located. Therefore, the Cs-137 sealed source (N.A. Scientific, MED 3550 sealed source, serial number 20074, 220.9 microcuries on 6/1/2002) is being reported as a lost source. Current activity is calculated as approximately 131 microcuries. Investigation findings indicate the most likely scenario to be that the Cs-137 sealed source was accidentally thrown out as regular trash at some point during the shutdown of nuclear medicine operations at the site. It is believed the source was disposed of around October 2023. Given the time since disposal, it is unlikely any further investigation or corrective action is possible. After initiating appropriate enforcement action, licensing staff will facilitate proper termination of the license. Pending no further developments, this matter is considered closed. Illinois item number: IL250002 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 | |
|---|---|
| Metro Cardiovacular Consultants Oak Lawn, Illinois (NRC Region 3) | |
| License number: | IL-02117-01 |
| Organization: | Illinois Emergency Mgmt. Agency |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+11479.73 h478.322 days <br />68.332 weeks <br />15.725 months <br />) | |
| Opened: | Gary Forsee 14:44 Jan 21, 2025 |
| NRC Officer: | Natalie Starfish |
| Last Updated: | Jan 21, 2025 |
| 57502 - NRC Website | |
Metro Cardiovacular Consultants with Agreement State | |
WEEKMONTHYEARENS 575022023-10-01T06:00:0001 October 2023 06:00:00
[Table view]Agreement State Agreement State - Lost/Missing Source 2023-10-01T06:00:00 | |