Event Notification Report for December 31, 2020

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

AGREEMENT STATE REPORT - LOST AND RECOVERED RADIOACTIVE MATERIAL

The following information was received via email:

"On December 10, 2020, the licensee discovered a lost iodine-131 shipment. The shipper of the 475 mCi of iodine-131 Liquid (Yellow II label) delivered the package to the wrong address, a neighboring business. The package was delivered to the licensee by the recipient before the package was known to be 'lost', later on the scheduled delivery date. The surface reading of 12 mR/hr was obtained upon the licensee receiving the package. The package was estimated to be in the possession of the recipient for approximately 1 hour. The estimated dose was approximately 12 mrem if an individual had been in contact with the package for the entire time it was in the possession of the recipient. Since the material was delivered by the recipient within the time frame the shipper would normally deliver, and the facility had no reason to suspect the material was incorrectly delivered, the licensee will inform the shipper of the incident to handle training of their staff on proper delivery of radioactive packages."

PA Event Report ID No.: PA200024

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

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

AGREEMENT STATE REPORT - LOST TRITIUM EXIT SIGNS

The following information was received via email:

"The Department [Wisconsin Radiation Protection Section] was notified on December 22, 2020, of the loss of four Safety Light Corporation Model SLX-60 tritium exit signs. The signs each contained 7.5 Ci of tritium in December 2006. The licensee searched for the missing signs and was unable to locate them on the premises. The licensee believes that the signs were inadvertently disposed during construction in 2019. The Department will follow up with the licensee."

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

PATIENT RECEIVED THE WRONG RADIONUCLIDE DURING TREATMENT

A patient was set to receive an I-123 scan and uptake procedure on 12/15/20. Due to an error in scheduling the patient incorrectly underwent an I-131 therapy procedure instead. The I-131 therapy procedure delivered 15.8 mCi to the patient's thyroid where an I-123 scan and uptake procedure would have only delivered microCuries to the patient's thyroid.

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.

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

AGREEMENT STATE REPORT - LOST THEN FOUND MOISTURE / DENSITY GAUGE

The following information was received via email:

"On December 23, 2020, the Radiation Safety Officer (RSO) for ABI Engineering, Inc. contacted the California Department of Public Health - Radiologic Health Branch to report a moisture density gauge that was lost while transporting the gauge from the worksite in Orange, CA to the office. The gauge was locked in the transport case and placed in the vehicle, a pickup truck with a camper shell. During the short trip back to the office, the driver of another vehicle alerted the licensee's operator that the rear door of the camper shell was open. The licensee's operator then discovered that the gauge was missing, with one end of the chain used to secure the transport case loose. The licensee's operator backtracked to the jobsite in an attempt to find the gauge but did not locate it. The driver then notified the RSO and went to file a police report. Approximately 20-30 minutes after the RSO reported the incident to the Radiologic Health Branch, the RSO received a call from an individual who found the gauge. The gauge will be returned to the licensee. The gauge is a CPN International MC-3 (10 mCi Cs-137, 50 mCi Am-241:Be), S/N M39048766. The licensee's investigation into this event is ongoing and will be reviewed further by the California Department of Public Health."

California 5010 Number: 122320

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

OFFSITE NOTIFICATION DUE TO INADVERTENT EMERGENCY SIREN ACTIVATION

"On December 30, 2020 at 1550 CST, South Texas Project (STP) received a report that two Emergency Notification System sirens inadvertently actuated. The sirens were heard by residents in the area who contacted the Matagorda County Sheriff's office, which notified the Emergency Response Division at STP of the siren actuation at 1557 CST.

"Both sirens were initially restored, however siren #24 subsequently actuated again at 1735 CST. Siren #24 has been disconnected. Siren #27 remains available. Thirty-one of thirty-two sirens are available.

"This notification is being made under 10CFR50.72(b)(2)(xi) as an event where other government agencies were notified. The sirens are no longer alarming. A social media release is planned.

"The NRC Resident Inspector has been notified of the event."

The licensee believes the sirens actuated due to significant rain in the area but will be investigating the cause of the inadvertent actuation.