Event Notification Report for August 18, 2025

AGREEMENT STATE REPORT - LOSS OF RADIOACTIVE MATERIAL

The following information was provided by the State of Florida Bureau of Radiation Control (BRC) via email:

"BRC received notification from [a representative of] Environmental Health and Safety for Florida A & M University, that a scintillation counter with an embedded Cs-137 external quench monitor source was improperly disposed of. [The representative] states the professor in charge of the laboratory requested the item's removal, and it was disposed of as a piece of retired equipment without recognizing the presence of the radioactive material. This error was identified by [the radiation safety officer on] 7/29/25. [The licensee] could not locate the serial number for the item."

The device is a Beckman Coulter Model number LS6500 and contains a 30 mCi Cs-137 source.

Florida Incident Number: FL25-079

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

OFFSITE NOTIFICATION

The following information was provided by the licensee via phone and email:

"On August 15, 2025, Columbia Generating Station received a report of a sheen of oil in the circulating water basin. This basin is connected to the Columbia River via a blowdown line. This blowdown line was secured at 1423 PDT on August 15, 2025. A visual inspection of the Columbia River did not identify any oily sheen or film. It did not appear that the oil posed a threat to human health or the environment, however, because there could have been a discharge of an unknown quantity of oil into the Columbia River, the event became immediately reportable under 40 CFR 302.6a to the National Response Center, Benton County, Washington State Department of Emergency Management (under Revised Code of Washington 90.56.280), Washington Department of Ecology, as well as the Coast Guard National Response Center.

"This is being reported pursuant to 10 CFR 50. 72(b)(2)(xi) for notification of other government agencies concerning an event related to the health and safety of the public or protection of the environment. Notifications to offsite agencies was performed at 1626 on August 15, 2025. The NRC Resident Inspector has been notified."