ENS 55482
ENS Event | |
|---|---|
18:00 Sep 9, 2021 | |
| Title | Loss of Control of Radioactive Material |
| Event Description | The following report was received from the Utah Department of Environmental Quality, Division of Waste Management and Radiation Control (the Division) via email:
On August 27, 2021, local heavy rain infiltrated the Merrill Engineering Building, causing flooding on the first and third floors. The first floor also included some radioactive materials labs. While stripping the labs on September 9, 2021, in preparation for repair, the contractor violated policy and failed to notify the lab owners before moving material from the lab. Included in the material removed from the lab was a safe containing 13 exempt calibration sources and one 0.006 milliCurie U-235 ceramic source. The safe was moved to an onsite trailer that was under control of the contractor and not the University. When the lab owner returned to the lab later in the day they immediately reported the sources missing. Investigation by licensee personnel lead them to where the sources were being stored. The sources were out of the licensee's exclusive control for 1 to 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />. The sources were re-secured and placed under the licensee's exclusive control closing the incident. The report was not determined to be reportable until the Division was able to conduct its on site investigation on September 20, 2021. Utah Event Report ID Number: UT 210005 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 | |
|---|---|
| University Of Utah Salt Lake City, Utah (NRC Region 4) | |
| License number: | UT 1800001 |
| Organization: | Utah Division Of Radiation Control |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+280.58 h11.691 days <br />1.67 weeks <br />0.384 months <br />) | |
| Opened: | Tim Butler 10:35 Sep 21, 2021 |
| NRC Officer: | Mike Stafford |
| Last Updated: | Sep 21, 2021 |
| 55482 - NRC Website
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University of Utah with Agreement State | |
WEEKMONTHYEARENS 564662023-04-04T18:00:0004 April 2023 18:00:00
[Table view]Agreement State Leaking Source ENS 554822021-09-09T18:00:0009 September 2021 18:00:00 Agreement State Loss of Control of Radioactive Material ENS 526732017-04-10T06:00:00010 April 2017 06:00:00 Agreement State Agreement State Report - Leaking Tritium Exit Sign ENS 517142016-02-02T07:00:0002 February 2016 07:00:00 Agreement State Lost Tritium Exit Sign ENS 421212005-11-05T19:50:0005 November 2005 19:50:00 Agreement State Agreement State - Missing Am-241 Source ENS 419252005-08-04T18:30:0004 August 2005 18:30:00 Agreement State Agreement State Report - Medical Event 2023-04-04T18:00:00 | |