Event Notification Report for November 12, 2020

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

EN Revision Imported Date: 11/13/2020

EN Revision Text: AGREEMENT STATE REPORT - LOST GAUGES

The following was received from the state of Tennessee via email:

"General licensee, Blues City Brewery, reported the loss of 3 gauges after contractor work that involved the movement of the gauges. Blues City reported the loss. It is possible that the gauges could have made it into the local scrap metal stream. From the scrap metal facility, the load that might have included the gauges went to a shredding facility in Alabama. The State of Alabama Radiation Control has been notified in case gauges are discovered at the shredding facility. The gauge is below:

"Manufacturer Model SN Isotope Activity
"Industrial Dynamics CI-2GV/3 44 Am-241 300 mCi
"Industrial Dynamics CI-2GV/3 46 Am-241 300 mCi
"Industrial Dynamics FT-100 33 Am-241 100 mCi"

TN event number: TN-20-152

* * * UPDATE ON 11/12/2020 AT 2014 EST FROM ROBERT SIMS TO BRIAN P. SMITH * * *

The following update was a summary of an email report received from the state of Mississippi concerning information pertaining to the lost gauges:

On October 19, 2020, the Tennessee Division of Radiological Health contacted the Mississippi Division of Radiological Health and the Alabama Department of Public Health Radiation Control concerning three lost gauges from the Blues City Brewery facility. The facility believes the gauges were lost in the July-August timeframe during construction on some of their lines. Blues City Brewery told the contractor to take the gauges to a storage area, but the contractor moved the wrong parts allegedly to the scrap yard. The scrap metal/gauges are believed to have been brokered by an unknown entity and allegedly sent to Iskiwitz Metals at 604 Marble Ave, Memphis, TN 38107. The Tennessee Division of Radiological Health sent someone to look for the gauges and survey for them, but they only found the detector for part of one of the devices. From Iskiwitz, the metal was believed to be sent to a shredder in TN and a scrap yard in Mississippi named Martin Brothers Scrap Metal located at 690 Belmont Rd, Sardis, MS 38666, then allegedly to a smelter in Alabama. Soil samples were taken at the scrap yard in Mississippi, however, readings show only background radiation. The gauges have not been found. Mississippi Division of Radiological Health considers the event closed.

Mississippi Event Number: MS-200004

Notified R1DO (Carfang), R4DO (Dixon), NMSS Events Notification (Email), ILTAB (Email)

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 - STOLEN MOISTURE DENSITY GAUGE

The following is a summary of information received from the Colorado Department of Public Health and Environment:

The licensee reported that an InstroTek 3500 moisture/density gauge was stolen from the licensee's truck at 0730 MST on 11/3/20. The gauge was secured in the truck, and the truck was parked near the gauge user's house when the gauge was stolen. The police have been notified of this event.

Sealed Sources: 11 mCi of Cs-137 and 44 mCi of Am-241:Be

Event Report ID No.: CO 200063

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 "Category 2" level of radioactive material.

EN Revision Imported Date: 11/6/2020

EN Revision Text: AGREEMENT STATE REPORT - LOST OR MISSING RADIOGRAPHY CAMERA

The following is a summary of the information received from the State via email:

On 11/3/20, the licensee reported to the Oklahoma Department of Environmental Quality that a radiography camera was missing. The device was shipped from a Stanley facility in Pennsylvania to Oklahoma. The shipping paper arrived at the Oklahoma facility on 11/2/20, but the package containing the camera was missing. On 11/2/20, Stanley notified the shipment carrier of the missing package.

The radiography camera is a QSA Global Model 880 Delta (S/N: D14241) with a 25.5 Ci Ir-192 source.

* * * UPDATE ON 11/5/20 AT 1608 EST FROM KEVIN SAMPSON TO ANDREW WAUGH * * *

The device has been located by the shipment carrier and is scheduled to be returned to the licensee.

Notified R4DO (Proulx), NMSS (Rivera-Capella), IR MOC (Grant), ILTAB (Clark), and NMSS Events Notification (email).

THIS MATERIAL EVENT CONTAINS A "CATEGORY 2" LEVEL OF RADIOACTIVE MATERIAL

Category 2 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 a short time (minutes to hours). It could possibly be fatal to be close to this amount of unshielded radioactive material for a period of hours to days. These sources are typically used in practices such as industrial gamma radiography, high dose rate brachytherapy and medium dose rate brachytherapy. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

AGREEMENT STATE REPORT - A SHUTTER STUCK OPEN ON A GAUGE

The following was received from the state of Tennessee via email:

"Licensee noticed on 11/2/2020 that a shutter was stuck open on a gauge. The position was confirmed on 11/3/2020. The licensee is in the process of reaching out to the manufacturer to determine the process for repair."

The gauge is an Ohmart model SHD with a 50 mCi Cs-137 source (S/N: M-0720).

Tennessee Incident Number: TN-20-165.

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

EN Revision Imported Date: 11/11/2020

EN Revision Text: AGREEMENT STATE REPORT - STOLEN NUCLEAR GAUGES

The following is a summary of information received from the Texas Department of State Health Services (the Agency) via email:

"On November 5, 2020, the Agency was notified by the licensee that three of their nuclear density/level measurements gauges had been stolen from one of their storage sites. The storage site had been vandalized and various pieces of equipment were damaged as well. The licensee has contacted local law enforcement about this incident.

"The gauges contain Cs-137 sources. The total activity of the missing sources is estimated to not exceed 200 mCi. The licensee does not have any additional information regarding the incident or gauges at this time."

Texas Incident Number: 9808

* * * UPDATE ON 11/10/20 AT 0813 EST FROM ART TUCKER TO BRIAN LIN * * *

"On November 9, 2020, the licensee provided additional information on the stolen gauges. All gauges contained cesium-137 sources. Two of the gauges were Thermo Fisher model 5192 gauges. One of the two gauges contained a 250 milliCurie (mCi) (original activity now 215 mCi) source and the other contained a 200 mCi (now 162 mCi) source. The third gauge was a Thermo Fisher model 5190 gauge containing a 200 mCi (now 166 mCi) source. The gauges had been stored in a locked cage on the licensee's site. The gauges were still installed on the pipes they were used on. The licensee stated the last time the gauges were seen was September 1, 2020. The Agency instructed the licensee to notify local scrap yards of the theft and provided them with a copy of the attached picture. The Agency has requested additional information from the licensee. Additional information will be provided as it is received in accordance with SA-300."

Notified R4DO (Dixon), ILTAB (email), NMSS Events Notification (email), and CNSNS-Mexico (email)

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

AGREEMENT STATE REPORT - DAMAGED GAUGE

The following is a summary of information was received via email:

On 11/4/20, one of the licensee's moisture density gauges was damaged at a job site in Chualar, California. The gauge was not in use and the sources were in the shielded position when it was run over by a scraper. The area was immediately secured and the scraper was taken out of service. The source rod was broken off at the top of the shielding and the outer casing of the gauge was heavily damaged. On the day of the incident, gauge was transported to licensee's storage facility. On 11/5/20, the gauge was taken to InstroTek for disposal. Leak tests performed at InstroTek were negative for any contamination.

The gauge was a CPN MC3-Elite (S/N: 800338) containing 10 mCi Cs-137 and 50 mCi of Am-241.

California 5010 Number: 110420

NOTIFICATION OF STEAM GENERATOR TUBE DEGRADATION

"At 1311 EST on November 11, 2020, it was determined, after evaluation of the Watts Bar Nuclear Plant (WBN) Unit 2 Steam Generator (SG) tube eddy current test data collected during the on-going refueling outage, that the WBN Unit 2 Reactor Coolant System pressure boundary did not meet the performance criteria for SG tube structural integrity. Specifically, SG number 3 failed the condition monitoring assessment for conditional burst probability. WBN has completed tube plugging and additional corrective actions are in progress. This event is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(ii)(A).

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

AUTOMATIC REACTOR TRIP DUE TO TURBINE TRIP

"At 1732 EST on November 12, 2020, with Unit 2 in Mode 1 and 100 percent power, the reactor automatically tripped due to a turbine trip. The trip was not complex with all systems responding normally post trip. Operations responded and stabilized the plant. Decay heat is being removed by the steam generators through the steam dumps into the condenser. Unit 1 is not affected.

"An automatic actuation of the Auxiliary Feedwater System (AFW) also occurred. The AFW auto-start is an expected response from the reactor trip.

"Due to the Reactor Protection System actuation while critical, this event is being reported in accordance with 10 CFR 50.72(b)(2)(iv)(B), as well as in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the Auxiliary Feedwater System. There was no impact on the health and safety of the public or plant personnel.

"The NRC Resident Inspector has been notified."