On 9/28/17, a contractor hired by Walsh & Kelly, Inc. contacted the NRC RIII Office to request instructions for disposal of four (4)
Tritium Exit signs which he had removed. He was instructed to return the signs to Walsh & Kelly, Inc. The signs were returned which Walsh & Kelly acknowledged.
An onsite inspection by RIII staff on 11/20/17, was unable to locate or determine the disposition of the four (4) Tritium Exit signs;
Manufacturer: Isolite
Activity: 10 Ci/each
Quantity: 4
Model: SLX-60
S/Ns: 11-36128, 11-36129, 11-36130 and 11-36131
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