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Home NRC Library Document Collections Events, Reports Associated with Event Notification Reports 2025

Event Notification Report for June 10, 2025

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
06/09/2025 - 06/10/2025

EVENT NUMBERS
57738
Agreement State
Event Number: 57738
Rep Org: Colorado Dept of Health
Licensee: HCA HealthONE Sky Ridge
Region: 4
City: Lone Tree   State: CO
County:
License #: CO 1053-01
Agreement: Y
Docket:
NRC Notified By: Maggie Schnettler
HQ OPS Officer: Ernest West
Notification Date: 06/03/2025
Notification Time: 15:19 [ET]
Event Date: 05/07/2025
Event Time: 00:00 [MDT]
Last Update Date: 06/03/2025
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
Dodson, Doug (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB, (EMAIL) (EMAIL)
Event Text
LOST BRACHYTHERAPY SEED

The following information was provided by the Colorado Department of Public Health and Environment via email:

"On May 30, 2025, the radiation safety officer (RSO) at HCA HealthONE Sky Ridge notified the Colorado Department of Public Health and Environment via phone call that a prostate brachytherapy seed containing 2.5 mCi of palladium-103 was discovered to be missing during the licensee's inventory. The inventory was conducted on May 7, 2025, but the actual date of loss is unknown."

Colorado Event Number: CO250015


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