Event Notification Report for November 14, 2023

AGREEMENT STATE REPORT - LOST NUCLEAR GAUGE

The following information was received from the Wisconsin Department of Health Services (the Department) via email:

"On November 06, 2023, at 1408 CST, the Department received a notification from the licensee that a Peco Controls Corporation gauge (serial number 5450LA) containing 100 mCi of Am-241 had been determined to be missing while conducting inventory of gauges in storage. This is all the information that is known at this time. The Department will follow up and provide additional information as it becomes available."

Wisconsin Event Report ID No.: WI230021

* * * UPDATE ON 11/10/23 AT 1605 EST FROM MEGAN SHOBER TO ERIC SIMPSON * * *

The following update was received from the Wisconsin Department of Health Services (the Department) via phone and email:

"On November 10, 2023, the licensee determined that an additional four Peco Controls Gamma 101P gauges were missing (serial numbers 0550LX, 9145LV, 9142LV, and 9580LV). Each gauge contained 300 millicuries of Americium-241. Department inspectors were onsite and physically verified the remainder of the licensee's inventory.

"In addition, the model number of the gauge declared missing on November 6, 2023 was confirmed to be a Gamma 101P."

Notified R3DO (Ruiz), NMSS Event Notifications, ILTAB, and CNSC via 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

AGREEMENT STATE REPORT - LOST EXIT SIGNS

The following is a synopsis of information provided by the Colorado Department of Public Health and Environment via email:

On 10/30/23, the licensee discovered that 11 tritium exit signs were not able to be located. The exit signs were SRB Technologies (model number BX-10-BK) signs each containing 10 Ci of tritium (H-3). This is being reported under Colorado Regulations Section 4.51.1.1 (10 CFR 20.2202(a)(1)(i)).

Event Report ID No.: CO230040

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 Florida Bureau of Radiation Control (BRC) via email:

A Radiation Safety Officer (RSO) with Environmental Safety Consultant (ESC) Florida, LLC called BRC in Orlando on November 7, 2023, at 1150 EST to report a soil moisture density gauge (Model: Instro Tek Xplorer 3500, 8 mCi Cs-137, 40 mCi Am-241:Be) was run over on a job site around 1130 this morning. The RSO indicated that the source rod was retracted when the incident occurred. An inspector was sent to investigate.

Florida Event Number: FL23-161

EN Revision Imported Date: 11/14/2023

EN Revision Text: OFFSITE NOTIFICATION

The following information was provided by the licensee via email:

"On November 12, 2023, at 0300 EST, a Watts Bar contractor was transported offsite for medical treatment due to a work-related injury. Upon arrival at an offsite medical facility, medical personnel determined the injury required the individual to be admitted into the hospital and will be kept overnight. The individual was inside of the Radiological Controlled Area, however was free released with no contamination.

"The injury and hospitalization were reported to the Occupational Safety and Health Administration (OSHA) under 29 CFR 1904.39(a)(2). The contracting agency informed OSHA at 1319 EST. Watt Bar Operations personnel were officially notified by the contracting agency of the report made to OSHA at 1945 EST.

"This is a four-hour notification, non-emergency for a notification of other government agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi).

"The NRC Resident Inspector has been notified."