Event Notification Report for July 21, 2026

EN Revision Imported Date: 7/21/2026

EN Revision Text: AGREEMENT STATE REPORT - LEAKING SOURCE

The following information was provided by the New York State Department of Health (NYSDOH) via email:

"The NYSDOH Bureau of Environmental Radiation Protection (BERP) received an email from the radiation safety officer of Westchester County Department of Laboratories and Research (DOLR) on May 1, 2025, to report a leaking Ni-63 electron capture device (ECD) from an Agilent 5890GC [Control Module] that was decommissioned pending disposal. The ECD has been locked in storage and not in service.

"Device: Agilent
"Device Model: 5890GC
"Serial No.: U3284
"Isotope: Ni-63

"The licensee was conducting a leak test and wipe of the decommissioned gas chromatography unit. The wipe test for the ECD housing had removable contamination detected at 7,741 pCi when analyzed using a proportional counter. The device is in the initial stages of returning to Agilent and the licensee was performing the wipe test prior to shipment. The licensee is contacting Agilent for additional guidance.

"NYSDOH BERP is actively monitoring this event under Incident Number 1530. Additional information will be provided to NMED once available."

Event Report ID Number: NYSDOH-25-06

* * * UPDATE ON 07/20/2026 AT 1054 EDT FROM NATHANIEL A. KISHBAUGH TO SEBASTIEN BRUNEAU * * *

The following information was provided by the New York State Department of Health (NYSDOH) via email:

Update to NMED ID 250175
"As 07/20/2026 at 1054 EDT, the aforementioned ECD has been removed from service and received by Agilent for further review and disposal. NYSDOH BERP has closed out Incident No. 1530."

Notified R1DO (Dentel), and NMSS Event Notifications (email).

AGREEMENT STATE REPORT - MEDICAL EVENT

The following information was provided by the Ohio Bureau of Radiation Protection via email:

"On July 13, 2026, the licensee's radiation safety officer notified the Ohio Department of Health (ODH) of a possible medical event involving a Y-90 TheraSphere microsphere administration. A patient was to receive a prescribed dose of 200 gray (Gy) to the target liver-segment. After administration, calculations of residual activity in the delivery system determined that the patient only received 154.8 Gy, a 23 percent difference less than the prescribed dose. The licensee does not believe the patient reached stasis and does not recall any issues during the delivery of the Y-90 microspheres. The patient was not harmed. The licensee will provide a report to ODH within 15 days of notification."

Ohio Event number: OH260003

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.

AGREEMENT STATE REPORT - DAMAGED TROXLER GAUGE

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

"On July 13, 2026, Interra, Inc. the licensee, reported that a nuclear density gauge stopped working at a job site the previous day. The licensee was contacted by the Agency on July 14, 2026, for additional information. At that time, the licensee reported that a Troxler 3440 gauge (CS-137 10 mCi, Am-241 40 mCi, serial number: 31625) had been run over by a roller on July 12, 2026, damaging the gauge handle. The licensee reported that the source rod was not extended when the incident occurred. Information obtained indicated that emergency procedures were followed. The designated alternate radiation safety officer responded to the scene with a radiation survey instrument. Surveys were conducted and results indicated no leakage and proper shielding of sources. The transport case was reported as undamaged, and the gauge was able to be placed in its shielded transport container. A second survey was conducted on the morning of July 13, 2026, and the bent source handle was secured to the gauge housing with duct tape. Once secured, the gauge was transported to Troxler in Downers Grove, Illinois for a leak test, full evaluation, and repair.

"A reactive inspection is scheduled to occur on July 15, 2026.

"This event will be updated as additional information is obtained."

Illinois Item Number: IL260021