The following was provided by the state via email:
A single Cs-131 Brachytherapy seed was put back into the 'mick' cartridge by Banner Baywood Medical Center in Mesa, AZ, - the medical customer and end-user - and then returned to the manufacturer, IsoRay, a Washington State seed manufacturing licensee. When the shipping container, holding the mick container, arrived at IsoRay, contamination was found on the inside of the shipping container but not on the outside. There was no damage to the shipping container.
While unpacking the seed, a technician noticed there was visible damage to the seed. The tech monitored the packing material and found contamination. The RSO determined that a few microcuries of radioactive material leaked onto the packing material. The remaining millirem of material was in the damaged source and the pig. No material was missing. IsoRay called Washington State, Office of Radiation Protection, and reported the event that day.
There was no contamination found at the customer's site. IsoRay's Radiation Safety Officer reported that the seed had been visibly damaged, as if sheared. This may have happened when it was returned to the mick container or when the mick cartridge was re-inserted into the pig. Since all the contamination was inside the shipping container, it is doubtful that any personnel exposure was received.
The cartridge was a Mick Radio-Nuclear Instruments, Inc catalog number 0216-DS. The SS&D registration for the seed is WA-1220-S-101-S."
Incident Number: WA-09-006