Event Notification Report for December 08, 2022

AGREEMENT STATE REPORT - RADIOPHARMACEUTICAL MISADMINISTRATION

The following report was received from the New Jersey Department of Environmental Protection (NJDEP), via email:

"The licensee had scheduled two patients who were each to receive 200 mCi of Lu-177. One patient was to receive 200 mCi of Lu-177 Lutathera, while the other was to receive 200 mCi of Lu-177 PSMA. The PSMA patient was mistakenly administered the Lutathera, while the Lutathera patient was mistakenly administered the PSMA.

"Licensee is working with Radiation Safety Officer on steps needed to prevent recurrence.

"NJDEP Actions: Will conduct on-site visit if warranted."

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.

AGREEMENT STATE REPORT - FAILED CABLE/DRIVE MECHANISM

The following event was received from the state of Maryland via email:

"On December 8, 2022 a UMD [University of Maryland] campus-wide power outage occurred and the panoramic irradiator source rack failed to automatically return to the fully shielded position. Operators responded and while remaining outside of the shielded vault, they manually lowered the sources to the fully shielded position. Shielding remained intact. Radiation levels in the irradiator area are at normal levels and the sources are secured in a safe and legal manner. The irradiator will not be operated until an investigation has been conducted and determined that the irradiator can be operated as normal. There was no risk for exposure to staff or members of the public. Operators are unloading the source rack and investigating to ensure that the sources will automatically return to the fully shielded position when power is lost."

EN Revision Imported Date: 1/10/2023

EN Revision Text: UNUSUAL EVENT DUE TO EXCESSIVE REACTOR COOLANT SYSTEM LEAKAGE

At 1402 EST Turkey Point Unit 3, while operating at 100 percent, declared an Unusual Event due to unidentified leakage greater than 10 gallons per minute for more than 15 minutes. The abnormal procedure for Reactor Coolant System leakage was entered. The plant remains at 100 percent power. The cause of the leakage is under investigation.

At 1446 EST it was verified that the leak had been isolated. The plant remains at 100 percent power.

Unit 4 was unaffected.

State and local authorities were notified by the licensee.

The NRC Resident Inspector has been notified.

Notified DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), DHS NRCC THD Dest (email), and DHS Nuclear SSA (email).


* * * UPDATE ON 12/08/22 AT 1621 (EST) FROM SZEMEI CHOI TO THOMAS HERRITY * * *

Turkey Point Unit 3 has isolated the leak. The Unusual Event was terminated at 1558 EST.

The NRC Resident Inspector has been notified.

Notified R2DO (Miller), NRR EO (Miller), and IR MOC (Crouch). Notified DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), DHS NRCC THD Dest (email), and DHS Nuclear SSA (email).

* * * RETRACTION FROM BRANDEN NATHE TO DONALD NORWOOD AT 1446 EST ON 1/9/2023 * * *

"Turkey Point Nuclear Unit 3 is retracting this notification based on the following additional information not available at the time of the notification, Following the event for unidentified RCS leakage on 12/8/22 at 1403 EST, additional information demonstrated that an RCS leak did not exist.

"A review of indications showed that the in-service seal water return filter D/P [Differential Pressure] rose from 1 psid to 6 psid with a corresponding rise in VCT [Volume Control Tank] level as would be seen with an increase in excess letdown flowrate. Additionally, the on-contact radiation dose rate from the excess letdown piping in the U3 Pipe and Valve Room was measured by RP [Radiation Personnel] to be significantly higher than normal with no other sources of elevated radiation levels noted.

"Following the closure of CV-3-387, RCS To Excess Letdown HX [Heat Exchanger] Control Valve, a nominal input/output flow balance was able to be restored. Containment parameters including pressure, temperature, sump level and radiation level did not change during the event. Due to the shared nature of piping between excess letdown and seal water return, a challenge to system integrity would not allow RCP [Reactor Coolant Pump] controlled bleed-off to remain in service with a normal flow balance which it has at all times subsequent to the event.

"Turkey Point Nuclear reported initially based on the available information at the time and to ensure timeliness with emergency declaration and reporting notification requirements. The NRC Resident Inspector has been notified."

Notified R2DO (Miller).

EN Revision Imported Date: 12/22/2022

EN Revision Text: OFFSITE AGENCY NOTIFICATION DUE TO CHEMICAL LEAK

The following information was provided by the licensee via email:

"On 12/8/2022, Prairie Island Nuclear Generating Plant initiated a notification to the State of Minnesota due to a HVAC coolant leak reaching waters of the state. The estimated quantity is 5 gallons of NALCO LCS-60. The leak was due to a failed heat exchanger coil and has been isolated. This notification is being made solely as a four-hour, non-emergency notification for a Notification of Other Government Agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi). There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."

* * * RETRACTION ON 12/21/2022 AT 1115 EST FROM RAYMOND YORK TO JEFF WHITED * * *
The following information was provided by the licensee via email:
"At 0019 EST on 12/9/2022, the Prairie Island Nuclear Generating Plant (PINGP) made Event Notification 56266 notifying the NRC of an environmental report to the State of Minnesota due to an estimated 5 gallons of NALCO LCS-60 that leaked from a failed heat exchanger coil and reached the waters of the state. This event notification was made in accordance with 10 CFR 50.72(b)(2)(xi). During further review of NRC reporting guidance, PINGP has concluded that the reported quantity of NALCO LCS-60 that leaked during this event was below the reporting threshold outlined in NUREG 1022, Revision 3. The NRC Resident Inspector has been notified."
Notified R3DO (Kozak)