Event Notification Report for January 25, 2021

This material event contains a "Less than Cat 3" level of radioactive material.

AGREEMENT STATE REPORT - MISSING SOURCE

The following information was received from the Commonwealth of Virginia via email:

"On January 5, 2021, the licensee reported that 34.02 microCuries of I -125 Aqueous Solution (Musk Tracer) was lost. The source was received on December 8, 2020. The licensee's technologist opened the package and checked if it needed to be refrigerated. The technologist verified the source was in the package and determined that the source did not need to be refrigerated. Then the technologist left the source in the package on the floor with the other items in the inventory area. Upon review of the receipt log of radioactive materials, it was noted that this shipment (package) was never logged-in, whereas other products received that day were included in the log, and the source could not be located. On 12/11/2020, the RSO [Radiation Safety Officer] was notified about the possible loss of the package. A search was conducted in the facility, but the licensee was unable to locate the source. The Facilities Department was alerted that there was a missing shipment (source), but five days had already passed. The licensee stated that it was too late to go through the dumpsters. The licensee believed that the package was unknowingly disposed of in a dumpster. However, the search is continuing. The licensee will submit the possible maximum public dose exposure from this source. This report will be updated when the licensee submits their final investigation report."

Virginia report no.: VA210001

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

This material event contains a "Category 3" level of radioactive material.

AGREEMENT STATE REPORT - LOST SOURCE IN TRANSIT

The following was received from the State of Louisiana, Department of Environmental Quality:

"On January 05, 2021, [the Radiation Safety Officer] (RSO) dropped off seventeen sources to the common carrier for shipment to various locations. Alpha-Omega contacted the Louisiana Department of Environmental Quality / Emergency Response Services Division / Radiation Section [at 1530 CST on 1/15/21] to report that a High Dose Rate (HDR) Ir-192 source was lost in transit with the common carrier. The source was being shipped to Mid-Columbia Medical Center, The Dalles, OR. The source serial number is D36R0392. The activity of the Ir-192 source on 1/5/21 was 10.568 Ci (391.016 GBq) when it was shipped. The current activity on 1/15/21 is 9.626 Ci (356.162 GBq). The common carrier does not show this source being tracked or received."

LA Event Report ID No.: LA 20210001

THIS MATERIAL EVENT CONTAINS A "CATEGORY 3" LEVEL OF RADIOACTIVE MATERIAL

Category 3 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for some hours. It could possibly - although it is unlikely - be fatal to be close to this amount of unshielded radioactive material for a period of days to weeks. These sources are typically used in practices such as fixed industrial gauges involving high activity sources (for example: level gauges, dredger gauges, conveyor gauges and spinning pipe gauges) and well logging. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

Note: This device is assigned an IAEA Category 3 value based on the actual radioactivity of the source, not on the device type. (Reference IAEA RG-G-1.9)

60-DAY OPTIONAL TELEPHONIC NOTIFICATION OF AN INVALID SPECIFIED SYSTEM ACTUATION

"This 60-day optional telephone notification is being made in lieu of an LER submittal, as allowed by 10 CFR 50.73(a)(1). This notification is made pursuant to the reporting requirements specified in 10 CFR 50.73(a)(2)(iv)(A) for an invalid actuation of one of the systems listed in 10 CFR 50.73(a)(2)(iv)(B).

"At 0946 hrs on December 1, 2020, with unit 2 in Mode 5 at 0% power, an invalid actuation of the Emergency Diesel Generators (EDG) 'A' and 'B', 'A' Residual Heat Removal (RHR) Pump, 'A' Service Water Booster Pump (SWBP), and Auxiliary Feed Water (AFW) Pumps 'A' and 'B' occurred. The actuation was caused by a Safety Injection (SI) signal while installing simulations to support Reactor Safeguards testing. The SI signal occurred when two out of three logic was met for Low Pressurizer Pressure, which was caused by a high resistance connection to a test point from a loose test lead.

"All aligned equipment, 'A' and 'B' EDGs, 'A' RHR Pump, 'A' SWBP and 'A' and 'B' AFW Pumps, responded properly to the auto-start signal and the actuation was complete. The actuation was not initiated in response to actual plant conditions, it was not an intentional manual initiation, and there were no parameters satisfying the requirements for initiation of the system. Therefore, this event has been determined to be an invalid actuation.

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