Event Notification Report for September 24, 2026

EN Revision Imported Date: 9/24/2026

EN Revision Text: AGREEMENT STATE REPORT - POSSIBLE OVEREXPOSURE

The following information was provided by the Tennessee Division of Radiological Health (the Department) via phone:

The Department was notified on April 3, 2026, at 1504 EDT, of a minor skin contamination event that took place at one of Precision Nuclear's radiopharmacy facilities, resulting in a possible overexposure. The employee's clothing, personal badge (dosimeter), and skin were contaminated with less than 1 mCi of flourine-18. Decontamination efforts began immediately after the event and were completed on the same day. Since the employee's badge was contaminated, final dose estimates have not been determined. The contaminated badge readings for lens dose equivalent and shallow dose were greater than the limit, however, finger ring dosimeter readings were less than the limits.

The contaminated badge readings were as follows:
Deep dose: 2,715 mrem
Shallow dose: 77,354 mrem (greater than the limit of 50,000 mrem)
Lens dose equivalent: 30,628 mrem (greater than the limit of 15,000 mrem)

Finger ring dosimeter readings were as follows:
Right finger ring: 9,902 mrem
Left finger ring: 2,066 mrem

This event is being reported to the NRC per Tennessee regulation 0400-20-05-.141 (24-hr report). The Department intends to conduct an investigation.

Tennessee Event Report ID Number: TBD

* * * RETRACTION ON 09/23/2026 AT 1724 EDT FROM ANDREW HOLCOMB TO KERBY SCALES * * *

The following is a summary of information provided by the Tennessee Division of Radiological Health via email:

This event is being retracted after more information was gathered, which included dose reconstruction that showed this event reportable criteria were not met.

Notified NMSS Event Notifications via email.

AGREEMENT STATE REPORT - LOST MOISTURE DENSITY GAUGES

The following information was provided by the Texas Department of State Health Services (the Agency) via email:

"The Agency received notification of two Troxler moisture density gauges lost in transport through [a common carrier]. The two missing gauges are a model 3440P (S/N 75617) last scanned September 4, 2026, and picked up in Ft. Worth, TX, and a model 4640 (S/N 79810), last scanned August 29, 2026, in Hutchins, TX. The model 3440P has an 8 mCi Cs-137 and a 40 mCi Am-241/Be source. The model 4640 has an 8 mCi Cs-137 source. Both gauges were shipped out of the Fort Worth area through [a common carrier] with the 3440P going from Fort Worth to Amarillo, Texas, back to the customer after servicing. The 4640 was going from Fort Worth to Baton Rouge, LA, for service. The licensee is still in contact with [the common carrier who is] actively searching for the missing gauges.

"Additional information will be made available according to SA300 reporting requirements as it becomes available."

Texas Incident Number: 10328
NMED number: TX260039

* * * UPDATE ON 09/19/2026 AT 0001 EDT FROM CARLEY CARDWELL TO ROBERT THOMPSON * * *

The following information was provided by the Agency via email:

"The licensee has received confirmation from [the common carrier] that the Troxler model 3440P gauge was located in Lubbock, TX, and is enroute to the customer. The licensee is still actively looking for the second gauge, the model 4640, that was enroute to Baton Rouge, LA.

Notified NMSS Events Notification (email), NSIR DSO ILTAB (email), CNSNS (email).

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

POTENTIAL LOST OR STOLEN SOURCE

The following information was provided by the US Army via phone:

On September 16, 2026, the licensee's radiation safety officer (RSO) discovered a closed eBay listing in Hartselle, Alabama with an M67 mortar sight unit, and M58 and M59 aiming post lights. The listing closed on July 10, 2026. It is unknown if the items contain the tritium sources at this time, but the data plates were not visible in the listing photos. The M67 unit originally contained a 5.8 Ci tritium source, and the M58 and M59 lights originally contained either 5 or 9 Ci tritium sources. The origin of this material is unknown at this time, but was previously owned by either the US Army or US Marine Corps. The RSO plans on reporting this to his chain of command and to the Army legal department to investigate the providence of the items and if they were legally obtained and sources removed prior to selling on eBay.


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