The following report was received from the State of
Arizona via email:
On December 21, 2015, the Agency [Arizona Radiation Regulator Agency] received a telephone call from SA Recycling that they had identified a waste load that contained low levels of radioactive material. The Agency responded on December 22, 2015, and was positively able to identify a pig containing a Cesium 137 waste from the licensee. The average reading on the pig was 5 mR/hr on contact using a Thermo Interceptor. No other sources were identified. The source appears to be an Amdel Model AM213, SN Z-591 contained in an Amdel Model CSA device. The source contains 3.47 mCi of Cesium-137, as of April 1, 1994.
Several issues are under investigation regarding how and when the radioactive material got into the scrap.
The Agency continues to investigate the event.
Arizona State First Notice: 15-026
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