The following was received from the State of
Washington via email:
"A shipment of 55 Cs-131 seeds with a total activity at the time of shipment of 10.7 GBq was lost by [common carrier] during shipment from Richland, WA to New York, NY. [Common carrier] stated to Isoray that the package went missing on 2/27/2018. The package was scanned leaving Spokane, WA but was never scanned in at the hub in Memphis, TN. The package description from the licensee is as follows: Isoray's internal order number is SCP181163. The package was 55 seeds, total apparent activity of 139 mCi, shipped as a Limited Quantity of Radioactive Material/Priority Alert Overnight. The total GBq at time of shipment was 10.7. The seeds were shipped non-sterile per the ordering M.D.'s request, they were contained in six 'Mick' cartridges inside of a stainless steel pig.
Update on 3/7/2018: The package was found by [the common carrier] and has been returned to the Isoray facility unopened. Isoray has stored the seeds for decay.
Incident Number: WA-18-006
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