The following is a synopsis of information received via e-mail:
The current property manager for Colorado Springs II Silvercrest Apartments completed an inspection of the facility without locating any tritium exit signs in their buildings. Two fire safety companies provided safety signs over a period of 16 years and no tracking records were kept regarding the disposition of tritium exit signs or their disposal. The current fire safety company has no further information regarding the disposition of the exit signs.
Six Tritium Exit signs had been shipped from the manufacturer on 12/13/2000 to Colorado Springs II Silvercrest Apartments. Since these signs could not be located, they are being reported as lost. These six signs were manufactured by Safety Light Corporation, model number - 2040, serial numbers - unknown.
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