Event Notification Report for February 09, 2023

AGREEMENT STATE REPORT - LIQUID RADIOACTIVE CONTAMINATION

The following information was provided by Utah Department of Environmental Quality, Division of Waste Management [the Division] and Radiation Control, via email:

"On January 31, 2023 at 1600 MST, the Intermountain Heart Institute, Cardiac Molecular Imaging Coordinator reported to the RSO [Radiation Safety Officer] that at 1445 MST a technologist, removing a Rb-82 (rubidium-82) generator from service, found liquid radioactive contamination in the bottom of the well chamber of the Infusion System. A syringe was used to remove the saline from the well of the Infusion System and the liquid was placed in the liquid radioactive liquid waste storage. Decontamination procedures were followed. The Infusion System well was wiped dry with paper towel(s). All radioactive waste was placed in approved radioactive waste storage. Wipe test(s) were performed.

"This incident has no impact on patient treatment. All Quality Control procedures passed while the generator was in use which verifies that patient treatments were within all requirements.

"The manufacturer was contacted for assistance and it is planned that the generator will be shipped back for investigation. We will follow the manufacturer's instructions for the shipment. A new generator has been placed in the Infusion System so that patient care can continue today.

"The Division will investigate this matter and update the record upon completion of the investigation."

Utah Event Report ID No.: UT23-0002

AGREEMENT STATE REPORT - STOLEN GAUGE

The following information was provided by the Iowa Department of Public Health (Iowa HHS) via email:

"During the night or early morning of January 31, 2023 - February 1, 2023, a Troxler portable nuclear gauge (model 3430, containing 9 millicuries Cs-137 and 44 millicuries Am-241:Be) was stolen from the truck of a licensee in Shellsburg, Iowa. It was reported that the employee had an early morning nuclear job on the day of February 1, 2023, in which he took the device home. Upon the early morning of February 1, 23, when the employee went to leave for the job, he discovered that the truck had been broken into. Items in the cab and all materials' testing equipment in the bed of the truck had been stolen, including the licensed portable nuclear gauge.

"The cause is still under investigation. Corrective actions will be determined.

"The Licensee notified the local sheriff's office. Iowa HHS will follow-up to support the response and provide assistance as needed and will update this event as they investigate."

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

AGREEMENT STATE REPORT - LOST SOURCE

The following information was received from the Minnesota Department [the Department] of Health via email:

"The Department was notified on January 13, 2023, of a lost 1.59 GBq (43 mCi) W-181 [tungsten-181] source in a Check-Cap C-scan colorectal cancer screening device. The Check-Cap C-scan was administered to a patient with the expectation the patient would recover the device at home when it exited the body. The device was not recovered and instead flushed down the toilet at the patient's residence."

Minnesota Event Number: MN230001

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

EN Revision Imported Date: 2/8/2023

EN Revision Text: PRIMARY CONTAINMENT DEGRADED

The following information was provided by the licensee via email:

"At 1738 EST on 02/07/2023, while in mode 5 at 0 percent power, it was determined during local leak rate testing (LLRT) that the primary containment leakage rate exceeded the allowable limit defined in 10 CFR 50, Appendix J, 'Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors.' Both primary containment isolation valves in a penetration failed LLRT requirements which represents a failure to maintain primary containment integrity.

"This event is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(ii)(A). There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."