Event Notification Report for December 14, 2021

EN Revision Imported Date: 12/14/2021

EN Revision Text: AGREEMENT STATE REPORT - STUCK GAUGE SHUTTER

The following information was received from the Alabama Department of Public Health, Office of Radiation Control via email:

"The Radiation Safety Officer for Georgia-Pacific of Pennington, Alabama notified the Alabama Office of Radiation Control that while performing routine six (6) month leak testing and shutter checks, one of their gauges had a shutter stuck in the open position. The manufacturer has been notified and a repair date is pending. Further information involving the gauge is forthcoming in the written report."

Alabama Event No: 21-14

* * * UPDATE FROM CASON COAN TO LLOYD DESOTELL AT 1358 EST ON 12/13/21 * * *
The license number and following gauge information was received via e-mail:

Gauge Manufacturer: Berthold
Model No.: PB 80
Serial No.: 1028/3-10-17
Source: Co-60 (3.081 mCi)
The damaged gauge was transferred off-site for disposal on 10/19/21.
The Alabama Department of Public Health, Office of Radiation Control considers this event closed.

Notified R1DO (Young) and NMSS Events Notification group via email.

EN Revision Imported Date: 12/14/2021

EN Revision Text: EMERGENCY DIESEL GENERATORS SIMULTANEOUSLY INOPERABLE

"At 1930 CDT on 10/17/2021, it was discovered both of the Unit 2 Emergency Diesel Generators were simultaneously INOPERABLE with a requirement to have one OPERABLE train; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10CFR 50.72(b)(3)(v). Offsite power was OPERABLE during this event.

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

The cause was corrected and both Emergency Diesel Generators are currently operable.

* * * RETRACTION ON 12/13/2021 AT 1607 EST FROM CARLOS PARADA TO LLOYD DESOTELL * * *

* The following information was provided by the licensee via email:

"This is a retraction of Event Notification EN55529 in accordance with 10 CFR 50.72(b)(3)(v)(D) made by the Prairie Island Nuclear Generating Plant on October 18, 2021. The original notification stemmed from a loss of power to the non-safety related Unit 2 Emergency Diesel Generator (EDG) starting air compressors. The resulting pressure decay in the EDG starting air receivers led to a decision to declare both EDGs inoperable. A subsequent engineering evaluation has provided reasonable assurance that the Unit 2 EDGs were operable and capable of performing their safety function during the time power was lost.

"The NRC Resident Inspector has been notified."

The HOO notified R3DO (Skokowski).

EN Revision Imported Date: 12/14/2021

EN Revision Text: AGREEMENT STATE - LEAKING SEALED SOURCE

The following was received from the Massachusetts Radiation Control Program (the Agency) via email:

"On December 6, 2021 at 1435 EST the Massachusetts Radiation Control Program received a call from the [Radiation Safety Officer] RSO at Amherst College reporting a leaking sealed source. The source is an open-window reference source (RM Corp, s/n R8023) containing 0.001 milliCi of Am-241 and the RSO believes he accidentally wiped the window while collecting the leak test sample of the source, the analysis of which showed 0.0908 microCi of removable activity which is in excess of regulatory limits. The RSO collected the leak test sample on November 29, 2021 at 0930 EST and sent it the same day to RSCS, Inc. for analysis. The leak test results were transmitted to the RSO by email on December 2, 2021 but the RSO was on vacation from December 2 through December 3 and was unable to review the email. The RSO was back at work on December 6, 2021 and reviewed the email at 1230 EST due to previous work commitments in the morning. The area where the source was handled was surveyed and no contamination was found. The RSO assumes the source window was damaged due to being wiped therefore the source will be secured and properly disposed of in accordance with the regulations.

"The Agency considers this event open."

Massachusetts Event Number: TBD