Event Notification Report for June 29, 2016

AGREEMENT STATE REPORT - MISSING TRITIUM EXIT SIGNS

The following information was received from the State of Colorado via email:

"Details: The corporate office of Extended Stay America responded to the 2016 General License Annual reports. In their letter, it is stated, after a full investigation of the property, the exit signs were not found. There were 17, B100 Series, SN 625444 to 625460, with 9.2 Ci and 9 BXU10WS, SN 631179 to 631186, with 9.2 Ci not located. The total lost exit signs being reported are 26. Due to employee turnover from date reported shipped 4-23-1998 and 7-20-1998 to 2016 no records were maintained as the company had no knowledge of the status of Tritium Exit Signs associated with the site.

"Event Description: The Company will be conducting a special project to determine if Tritium Exit Signs exist at any of their facilities in Colorado when fire inspections are completed. Should they locate any Tritium Exit Signs the signs will be properly disposed. The company will notify the Radioactive Materials Unit [State of Colorado] that the signs were removed and properly disposed."

CO Event Report ID No.: CO16-I16-10

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

SECONDARY CONTAINMENT INOPERABLE

"At 0940 CDT on 6/29/2016, both doors of a Secondary Containment Airlock were reported to be open simultaneously for a period of less than 5 seconds. The brief time that the doors were simultaneously open constituted an inoperable condition of Secondary Containment. Secondary Containment was immediately restored to operable by closing the airlock doors. The airlock interlock was repaired and verified to operate correctly.

"This event is being reported pursuant of 10 CFR 50.72(b)(3)(v)(C).

"The Senior Resident Inspector has been notified."

LEAKING Ni-63 SOURCES

"On June 29th, 2016 around 10:00 [MDT] a Qal-Tek Associates radiation technician identified two Varian ECD's [electron capture devices] (both registered Ni-63 electro-plated sealed sources) with positive leak tests results above the critical levels of the gas flow proportional counter (sn: 44643 - 7.1% efficiency for Ni-63). The net cpm for the 8 mCi ECD (model: 02-001972-00, serial number: A544) was 1840 cpm (0.0117uCi) and for the 15 mCi ECD (model: 02-001972-00, serial number A8118) the net cpm was 4060 cpm (0.026 uCi).

"The radiation technician was verifying the contents of a client's package in the Building 3 confinement facility that was shipped to Qal-Tek Associates address at: 3998 Commerce Circle, Idaho Falls, ID 83401. The outside of the package did not indicate any contamination when Qal-Tek received the package. Only the inside bottom face of the box indicated contamination of 60 net cpm. This portion of the box was removed for proper DAW [dry active waste] disposal at a licensed facility.

"The radiation technician halted work, notified her co-worker, contacted the supervisor and confirmed that contamination was not present on her person or on surfaces of the work area, per the procedure, in order to prevent the spread of contamination. The Varian ECD (sn: A544) sealed source was decontaminated, the port holes in the device where taped shut, sealed in a plastic bag labeled with caution-radioactive material: Ni-63 leaker, and isolated from the work area in the biosafety cabinet. When no contamination was confirmed on personnel or facilities, the RSO was notified. The RSO re-checked facility surfaces for contamination. The work bench still had some contamination of about 105 net cpm. This was communicated to the RT's [radiation technicians] and their manager for further decontamination. The radiation technician took extra personal protective precautions to isolate the contamination and proceeded with verifying the rest of the package contents (14 ECD's). Once again, during the package content verification process, a 15 mCi Varian ECD (sn: A8118) also had a positive leak test above the instrument critical level. The radiation technician halted work, notified her co-worker, contacted the supervisor and confirmed that contamination was not present on her person or on surfaces of the work area, per the procedure, in order to prevent the spread of contamination. The source was sealed in a plastic bag labeled with caution-radioactive material: Ni-63 leaker, and placed in the biosafety cabinet for isolation from the work area. When no contamination was confirmed on personnel or facilities the RSO was notified by the manager. The RSO asked the Qal-Tek client manager to notify them of the leaking Ni-63 sources with a strong recommendation that they survey their facilities for contamination. The sources will be sealed in another bag and placed in a drum for proper disposal at a licensed LLRW [low level radioactive waste] disposal facility."

The package was received from a client in Arcade, New York.