The following report was received via e-mail:
On 10/27/15, the RSO [Radiation Safety Officer] contacted RHB [California Radiation Health Branch] via an email to report two Ni-63 leaking sources. On 10/22/15, Thomas Gray and Associates, the vendor contracted to run the leak test analysis had informed the licensee that two of their Ni-63 sources were leaking above the prescribed limit of 0.005 microCuries. These sources were manufactured by New England Nuclear and had an initial activity of 10 mCi as of July 1966. They do not have a S/N, but were assigned internal tag numbers of 55 and 56. Both sources have not been used in any experiments for many years and have remained in storage. As of 10/27/15, both sources had an activity of 7.11 mCi each. They were not found to be leaking or damaged in previous leak tests. [The] RSO further stated that these sources were not removed from its safe or from its container anytime in the last year. As a result, no contamination was spread through the buildings.
[The] RSO is working with Thomas Gray and Associates to schedule a waste pick up in early 2016 to dispose of these sources.
California Event 5010-102715