ENS 57954

v t e ENS Event
06:00 Sep 25, 2025
Title	Lost Exit Signs
Event Description	The following is a summary of information provided by the Colorado Department of Public Health and Environment (the Department) via email: The Department received notification from the licensee that 10 exit signs containing 9.5 Ci of tritium each were lost in Boulder, Colorado. Manufacturer: Isolite Corporation Model number: 880-12-6 Isotope: H-3 Activity: 95 Ci Colorado event report ID number: CO250030 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

ENS 57954 +/-
Where
Century 16 Theaters Boulder #492 Boulder, Colorado (NRC Region 4)
License number:	GL001605
Organization:	Colorado Dept Of Health
Reporting

Agreement State
Time - Person (Reporting Time:+31.05 h1.294 days <br />0.185 weeks <br />0.0425 months <br />)
Opened:	Kathryn Kirk 13:03 Sep 26, 2025
NRC Officer:	Josue Ramirez
Last Updated:	Sep 26, 2025
57954 - NRC Website
v • d • e

v t e Emergency Notification System
Century 16 Theaters Boulder#492 with Agreement State
WEEKMONTHYEAR2025-09-25T06:00:00 [Table view]
[ENS list for Century 16 Theaters Boulder#492]

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