Event Notification Report for September 12, 2025

AGREEMENT STATE REPORT - PACKAGE PRESUMED MISSING IN TRANSIT

The following information was provided by the Illinois Emergency Management Agency (the Agency) via email:

"The Agency was contacted on 9/12/25 by Bard Brachytherapy (Carol Stream, IL) to advise that a package of (95) I-125 brachytherapy seeds, which they shipped on 9/9/25, had been repeatedly delayed and was now presumed lost at the carrier's hub in Kernersville, NC. Each seed contains 0.889 millicuries, for a total package activity of 84.455 millicuries. According to email transcripts, the [common] carrier stated the packages were still on site but had not been released for unknown reasons. There were no concerns of exposures to persons in unrestricted areas. On Tuesday, 9/16/25, the packages were then released and shipped to the intended recipient.

"It is unclear if the carrier declared the packages as lost and the reporting criteria in 10 CFR 20.2201 had been met. However, as the quantity of material would have required immediate reporting if lost. The licensee met all reporting requirements. This matter is now considered closed."

Item Number: IL250038

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 - PACKAGE EXCEEDED EXTERNAL RADIATION LIMIT

The following is a summary of information provided by the Louisiana Department of Environmental Quality (the Department) via phone:

The licensee reported that a package received from the Colorado School of Mines, containing a 1.166 mCi Co-57 source (model MC07.122, serial number: 31.23, manufacturer unknown at the time of the report) had measured external dose rates of 50 mr/hr on contact and 0.2 mr/hr at 1 meter. When the external packaging was opened, it was discovered that the internal shipping container had been damaged. It is believed that the damage to the internal shipping container degraded the effectiveness of the shielding, resulting in the external radiation levels measured. The Department will follow-up with additional information as it is developed.

* * * UPDATE ON 09/15/2025 AT 1319 EDT FROM JAMES PATE TO ROBERT THOMPSON * * *

The following is a summary of information provided by the licensee via email:

The package was supposed to be an excepted package. The package was damaged. The package received contained one source with the lid off the transport container inside the package. The activity of the source initially reported was the current activity; the original activity of the source was 10 mCi. The source was manufactured by Ritverc JSC and is used in a Mossbauer spectroscopy device. The Colorado School of Mines is licensed by the State of Colorado, license number CO 627-01.

Event report ID number: LA20250010

Notified R4DO (Agrawal), NMSS Events Notification (email)

AGREEMENT STATE REPORT - STUCK OPEN GAUGE SHUTTER

The following information was provided by the Illinois Emergency Management Agency (the Agency) via phone and email:

"The Agency was notified on September 12, 2025, by Equistar Chemicals LP of Morris, IL, regarding a stuck shutter. During the performance of the routine semi-annual inventory, the following nuclear gauge was found to have the shutter stuck in the open position.

"The gauge is in its normal operating shutter position (open) and no vessel entry or potential elevated exposures are likely. This matter is reportable within 24 hours under 32 Illinois Administrative Code 340.1220(c)(2). Updates will be provided as they become available."

Gauge: Vega model SH-F2 (serial number: 2767CO)
Source: 300 mCi Cs-137

Illinois item number: IL250037

AGREEMENT STATE REPORT - STOLEN MOISTURE DENSITY GAUGE

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

"On September 12, 2025, the Department received a report of a stolen Troxler model 3440 moisture density gauge (8 mCi Cs-137, 40 mCi Am-241/Be). The gauge was stolen from a licensee vehicle outside of a hotel in Humble, Texas. The theft was witnessed [by a member of the public] but by the time police (Humble Police Department) arrived, the perpetrator was gone. The licensee personnel were not notified, and they called the police again. A written report was received at 0948 hours. The [licensee's] radiation safety officer stated they think the handle lock was in place; accordingly, there is no immediate threat to the general public.

"Additional information will be provided in accordance with SA - 300 reporting."

Texas incident number: 10227, NMED number TX250046

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