Event Notification Report for February 09, 2026

AGREEMENT STATE REPORT - GAUGE SHUTTER INOPERABLE

The following is a summary of information provided by the North Dakota Department of Environmental Quality via phone and email:

The licensee reported difficulty opening the shutter on a fixed gauge during routine operating checks. The licensee is uncertain if the shutter could be successfully closed again. No visible damage to the gauge was noted. No overexposure to personnel was noted. The shutter was left in its normally open position.

Model: LB 7440-F-CR
Manufacturer: Berthold
Source: 115.9 mCi Cs-137

The vendor will be onsite February 4, 2026, to repair or replace the gauge.

AGREEMENT STATE REPORT - LOST SOURCES

The following is a summary of information provided by the New Mexico Environment Department via phone and email:

On January 12, 2026, the licensee, holder of a New Mexico academic broad scope 'A' license, reported that during a comprehensive physical inventory, conducted on August 8, 2025, for its license renewal application submittal, sixteen (16) discrete sources could not be located. The licensee's review of program records confirmed that the listed materials were not present in their last recorded locations, and no documentation exists indicating authorized transfer, disposal, or decay-in-storage for these items. The exact disposition of the materials is unknown. An exhaustive search of laboratories, storage rooms, and radioactive waste collection areas was conducted by the licensee. No additional radioactive materials were identified.

Based on historical program review by the licensee, plausible scenarios include improper disposal as non-radioactive waste, undocumented transfer, or continued onsite storage in an unidentified location, including the licensee's radioactive materials storage location, pending final disposal. The licensee attributed the loss to a systemic failure in inventory accountability that occurred over an extended period. The licensee's evaluation concluded that based on the isotopic properties, maximum quantities, and dosimetry review, it is highly improbable that any individual, either staff or public, received a dose exceeding limits.

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 - DAMAGED MOISTURE DENSITY GAUGE

The following information was provided by the California Department of Public Health, Radiologic Health Branch (RHB), via email:

"On January 30, 2026, RHB received notification that the licensee's portable nuclear gauge was damaged. During road construction in the city of Tracy, CA, a CPN MC3 (S/N 3604, 10 mCi Cs-137, 50 mCi Am-241/Be) was run over by a concrete truck. The gauge sustained damage to its housing structure and source rod, which snapped off. The gauge was not taking measurements and had its source rod in the shielded position at the time of the incident. No contamination is expected at this time. The licensee has contacted the manufacturer for disposal. RHB will investigate this matter further."

RHB 5010 number: 013026

AGREEMENT STATE REPORT - STOLEN MOISTURE DENSITY GAUGE

The following is a summary of information provided by the Florida Bureau of Radiation Control (BRC) via email:

On February 2, 2026, the licensee's radiation safety officer reported a Troxler model 3440 moisture density gauge (8 mCi Cs-137, 40 mCi Am-241/Be) stolen from a construction site in Vero Beach. The Indian River Sheriff's Office has been notified (case number 26-12020).

Incident number: FL26-007

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

CONCURRENT REPORT - FIRE IMPAIRMENT

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

"At approximately 1500 EDT on February 1, 2026, the New Hanover County Deputy Fire Marshal was notified per North Carolina fire code requirements that fire suppression system 'Riser 321', which provides sprinkler protection to the incinerator building, was impaired due to a frozen pipe. Regular patrols of the area are being performed, and operations in the incinerator building have been suspended until the repair can be made and the sprinkler system restored. Because the New Hanover County Deputy Fire Marshal was notified, a concurrent notification to the NRC Operations Center is being made per 10 CFR 70, Appendix A(c)."

AGREEMENT STATE REPORT - LOST AND RECOVERED GALLIUM-68 GENERATOR

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

"Wisconsin Medical Radiopharmacy (WMR) reported the loss and recovery of a 50 mCi germanium-68/gallium-68 generator (Eckert and Ziegler GalliaPharm, batch FQGE07, calibration date 7/11/23). The generator was discovered by Department staff at a scrap yard on January 20, 2026, during a routine investigation of an alarming vehicle portal monitor. The Department, with the help of the manufacturer, determined the generator had previously been possessed by WMR. WMR was notified and recovered the generator on January 23, 2026. The generator was intact and undamaged. It was initially thought the loss occurred on January 9, 2026, at an activity of 4.7 mCi Ge-68. After a reactive inspection, it was determined the licensee lost the generator in the summer of 2024 at an activity of approximately 20 mCi Ge-68. The generator likely remained in an unlicensed portion of the facility in an area that was accessible to members of the public. WMR is investigating the incident and will submit a 30-day report."

This is a lost, stolen or missing licensed material event reportable per 10 CFR 20.2201(a)(1)(i).

Wisconsin event report ID number: WI260003

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 - TRITIUM EXIT SIGNS DISCOVERED

The following is a summary of information provided by the Nevada Radiation Control Program (RCP) via email and phone:

On January 9, 2026, RCP was informed of the improper disposal of a large number of tritium exit signs. The signs were discovered in a storage unit.

The signs were improperly disposed of in the first quarter of 2015 by the homeowner's association (HOA) for a large condominium building. The HOA did not follow the general license requirements and contracted with non-licensed individuals for disposal of the signs. Neither the California-based HOA company nor the Arizona-based contractor had radioactive material licenses for handling and disposal of exit signs.

RCP investigation into the incident is ongoing.

Nevada item number: NV260002

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 - MEDICAL EVENT

The following information was provided by the Colorado Department of Public Health and Environment (CDPHE) via email:

"On Friday, January 30, 2026, at approximately 1525 MST, the radiation safety officer (RSO) for Memorial Hospital, University of Colorado Health, reported a medical event to CDPHE. The facility reported that at approximately 1430 MST a patient undergoing prostate radiation therapy treatment using Lu-177 (Pluvicto) had a medical event. The patient was on the second of six prescribed injections for this treatment protocol when the event occurred. The RSO stated that the intravenous injection (IV) line that was being used to administer the dose "blew" or otherwise became disconnected from other parts of the IV line. As a result, only 120 mCi (60 percent) of the prescribed 200 mCi was administered to the patient. Contamination of the surrounding area occurred, and access control protocols were implemented, along with restricting access to the dedicated injection room. Per the RSO, notification of the authorized user physician and referring physician is in process. The patient was subsequently released from the facility.

"Further investigation by the licensee and Colorado is ongoing."

Event report ID number: CO260002

A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.