Event Notification Report for July 26, 2023

AGREEMENT STATE REPORT - ELUATE EXCEEDED Mo-99 LIMIT

The following information was provided by the Ohio Department of Health (ODH) via email:

Cardinal Health made a telephone notification [to ODH] on 7/17/2023 that a Lantheus Tc-99m generator, lot number M190311A, exceeded the Mo-99 breakthrough limits. The generator was eluted three times on 7/10/23. The results of the Mo-99 breakthrough test were 0.224, 0.313, and 1.705 microcuries Mo-99/millicurie Tc-99m. None of these elutions were used to dispense activity to customers or prepare drug kits. No doses containing Tc-99m from this generator were administered to patients. Lantheus was notified on 7/10/23, the generator was pulled, and a return kit was provided.

Ohio Incident Number: OH230008

AGREEMENT STATE REPORT - LOST STATIC ELIMINATOR

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

The licensee reported the loss of one static eliminator (NRD model P-2021) containing 10 mCi of Po-210. This is being reported in accordance with Colorado Regulations Section 4.51.1.1 (10 CFR 20.2202(a)(1)).

Colorado Event Number: CO230020

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

CONTROL ROOM ENVELOPE INOPERABLE

The following information was provided by the licensee via email:

"At 0924 [EDT] on July 25, 2023, it was discovered that both trains of control room air conditioning system were simultaneously inoperable due to an inoperable control room envelope boundary. The boundary was restored at 0925 [EDT] on July 25, 2023. This condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v)(D).

"There was no impact on the health and safety of the public or plant personnel.

"The NRC Resident Inspector has been notified.

"There has been no impact to Unit 3 which remains at 100% power."