The following information was provided by the
New Jersey Bureau of Environmental Radiation Radiological & Environmental Assessment Section via phone and email:
During a site-wide inventory reconciliation, the licensee determined that 26 [of the] licensee's tritium exit signs could not be located. While a comprehensive search was conducted, it was ultimately determined that the signs may have been misplaced or removed during prior renovation or decommissioning activities. The signs were declared missing on November 20, 2025.
The site is actively engaged in removing all tritium exit signs that remain on-site through a licensed waste broker. They will be replaced with non-radioactive signs.
Manufacturer: Various
Model number: Various
Total estimated activity: 272 Ci
Isotope: H-3
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