Event Notification Report for March 02, 2021

AGREEMENT STATE REPORT - SOURCE ROD LEAKING

The following information was obtained from the state of California, Department of Public Health - Radiologic Health Branch (RHB) via email:

"On 2/16/21, the licensee contacted RHB to report that a contamination incident occurred during cutting of a source rod of a moisture density gauge. The gauge involved is a Troxler Model 3440, S/N 17263, originally containing 8 mCi of Cs-137 and 40 mCi of Am-241. The source serial number is 50-6634 and the 'IAEA Certificate of Competent Authority Special Form Radioactive Materials' that was provided by the licensee identifies the source as QSA Global Models XN30/0, XN 30/1, or 30XN/2, and states that the sources are single encapsulated.

"On 2/13/21, the licensee was attempting to replace a source rod on a customer's nuclear gauge. After removing the source rod tip, licensee surveys of the area detected contamination. Wipes of the rod and work area were counted using a Ludlum 3030, S/N 222793, calibrated 10/12/20, and indicated low levels of beta contamination (approximately 25 nCi total) apparently due to a leaking source. It is not believed the cutting of the source rod breached the Cs-137 source. The contamination was confined to a small portion of a countertop, a vise, a hack saw blade and the floor directly below the work area. The contaminated area was wiped with damp rags and contaminated items and rags were collected into plastic bags and then placed into a 5-gallon bucket. The source and the piece of the source rod cut off were placed into a large lead container. The area was subsequently surveyed again, and no radioactivity was detected. No contamination was detected on clothes or shoes."

California Report ID: 5010-021621

AGREEMENT STATE REPORT - RADIOACTIVE SOURCE FOUND AT PRIVATE HOME

Florida Bureau of Radiation Control (BRC) provided the following initial report via email:

"[A] Department of Health Regional Emergency Management (EM) Supervisor reported a call from Walton County EM advising of potential hazardous materials at a private residence in Defuniak Springs. Caller stated that several containers appear to be medical materials discovered in a storage shed near the residence. The containers are marked with a "radiological material" symbol. Local Fire Rescue (FR) and Walton County Sheriff's Office (SO) are on scene and Bay County FR has their HazMat unit in-route."

Florida Incident Number: FL-21-025

The following is a synopsis of the post HAZMAT investigation report:

The material was discovered in a storage shed on a rented property nearby. The renter does not know how long the material had been there or where it originated. Personnel at the scene were surveyed. No contamination was revealed.

Detailed investigation of the material showed no leakage. Only one lead pig registered slightly above background radiation. The source within the pig was determined to be Thorium-232 'hot source' in a sealed vial. The vial was not leaking. BRC took possession of the Thorium source. Hazmat took possession of the remainder of the material. Area was cleared at 0015 EST, 22 February 2021.

AGREEMENT STATE REPORT - LUTETIUM-177 IN STOLEN VEHICLE RECOVERED

The State of Colorado, Radioactive Materials Unit reported the following via email:

"On February 22, 2021, at approximately 1230 [MST], the Colorado Department of Public Health and Environment (CDPHE) was notified that a shipment of lutetium-177 dotatate was involved in a stolen vehicle incident. The incident occurred during a shipment via courier to the University of Colorado Hospital, CO 828-01; the shipment originator is Advanced Accelerator Applications. The courier's vehicle was recovered by the Aurora Police Department and the vial of lutetium-177 dotatate was found on the driver's seat of the vehicle and had been removed from the shipping container. The University of Colorado Hospital will be taking possession of the material. Isotope: lutetium-177. Activity: 200 mCi.

"Aurora Police Case Number: 2021-7342. The situation is currently unfolding and more information will be available at a later date."

Colorado Event Report ID No: Unassigned.

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

AUTOMATIC REACTOR TRIP DUE TO REACTOR PROTECTION SYSTEM ACTUATION

"On 3/1/21 at 1112 EST, with Unit 3 in Mode 1 at approximately 100 percent Rated Thermal Power (RTP), the reactor automatically tripped.

"Auxiliary Feedwater initiated as designed to provide Steam Generator (S/G) water level control. Emergency Operating Procedures (EOPs) have been exited and General Operating Procedures (GOPs) were entered. Unit 3 is stable in Mode 3 at normal operating temperature and pressure.

"This event is being reported pursuant to 10 CFR 50.72(b)(2)(iv)(B) and 10 CFR 50.72(b)(3)(iv)(A).

"The NRC Resident Inspector has been notified.

"All rods are inserted, decay heat is being removed via S/G through normal secondary systems. The plant is in a normal electrical line-up. The cause of the automatic reactor trip is [unknown at this time and is] being investigated."

There was no effect on Unit 4.

MAIN CONTROL ROOM INOPERABLE DUE TO MCR DOOR BEING AJAR

"At 1511 EST on March 1, 2021, it was discovered that the main control room (MCR) envelope was inoperable due to a MCR door being found ajar; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v). The door was closed, restoring the MCR envelope to operable at 1513 EST.

"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."