Event Notification Report for October 09, 2020

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
10/8/2020 - 10/9/2020

** EVENT NUMBERS **

Agreement State	Event Number: 54900
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES Licensee: Pavetex Engineering LLC Region: 4 City: Pottsboro State: TX County: License #: L 06407 Agreement: Y Docket: NRC Notified By: Art Tucker HQ OPS Officer: Brian Lin	Notification Date: 09/16/2020 Notification Time: 07:40 [ET] Event Date: 09/14/2020 Event Time: 00:00 [CDT] Last Update Date: 10/08/2020
Emergency Class: Non Emergency 10 CFR Section: Agreement State		Person (Organization): CALE YOUNG (R4DO) NMSS_EVENTS_NOTIFICATION (EMAIL) ILTAB (EMAIL)

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

Event Text

EN Revision Imported Date : 10/9/2020

EN Revision Text: AGREEMENT STATE REPORT - LOST AND FOUND DEVICE

The following information was submitted by the Texas Department of Health Services (the Agency) via email:

"On September 15, 2020, at 1700 CDT, the Agency was notified by the licensee's radiation safety officer (RSO) that one of their technicians had left a Troxler model 4640B density gauges at a job site overnight. The technician had completed their work on September 14, 2020, and left the job site after completing their paperwork, but failed to store the device into their truck. The RSO stated the gauge handle was locked and did not believe any individual would receive an exposure. The RSO stated the device contains two cesium-137 sources, but did not know the activities. The manufacturer's website states the activity to be 8 (+ or - 1) milliCuries. The licensee's license states a device source cannot exceed 9 milliCuries. The RSO stated they had technicians out searching for the gauge. At 1736 CDT, on September 15, 2020, the RSO contacted the Agency and reported the gauge had been recovered. He could not provide any additional information. Additional information has been requested. If during the investigation of this event it is determined that an individual could have been exposed, the Agency will submit an update to this report. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident No.: 9797

* * * UPDATE ON 10/08/2020 AT 0749 EDT FROM ART TUCKER TO OSSY FONT * * *

The following update was received from the Agency via email:

"On October 7, 2020, the Agency was notified by the licensee that the gauge only had one source and not two as first reported. The licensee stated it thought it had two sources because of the way it calculates the density of the top two inches. The licensee stated it has only one source, but two detectors so it can calculate thin lift density. Additional information will be provided as it is received in accordance with SA-300."

Notified R4DO (Josey) and NMSS Events Notification and ILTAB via email.

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	Event Number: 54924
Rep Org: MISSISSIPPI DIV OF RAD HEALTH Licensee: Dickerson and Bowen Region: 4 City: Brookhaven State: MS County: License #: MS-512-01 Agreement: Y Docket: NRC Notified By: Robert Sims HQ OPS Officer: Solomon Sahle	Notification Date: 09/30/2020 Notification Time: 16:54 [ET] Event Date: 09/30/2020 Event Time: 15:00 [CDT] Last Update Date: 10/01/2020
Emergency Class: Non Emergency 10 CFR Section: Agreement State		Person (Organization): PATRICIA SILVA (R4DO) NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

EN Revision Imported Date : 10/2/2020

EN Revision Text: AGREEMENT STATE REPORT - VEHICLE RAN OVER PORTABLE MOISTURE GAUGE

This is a summary of a call from the state of Mississippi Division of Radiological Health via phone:

A portable moisture density gauge, containing 9 mCi Cs-137 and 44 mCi Am-241/Be sealed sources, was run over by a vehicle at a construction site in Clinton, MS. No visible damage of the gauge was identified. The licensee's survey results were normal for a retracted source. The gauge was returned to a local office and the state will also perform a survey once they are on site. There was no exposure to personnel.

* * * UPDATE ON 10/01/2020 AT 1957 EDT FROM ART ROBERT SIMS TO BRIAN P. SMITH * * *

The updated report was sent from the state of Mississippi Division of Radiological Health via email:

"Off Norrell Road, off MS. 1-20 Clinton Mississippi Continental Tire Construction site off-ramp, the gauge user was on a noisy construction site with heavy equipment and ear protection requirements. The gauge user was taking a measurement and the high elevated Rubber Tire Roller used to pack asphalt did not see the gauge user. The gauge user yelled at him trying to get him to stop, but due to the noise and the driver not seeing him, the rubber tire roller ran over edge of Humboldt Moisture Density Gauge model 5001 Ser. No. 9624, only damaging the outer housing. The RSO was contacted, used a survey meter Troxalert Model 01754 calibrated 01/10/2020, and received readings of 6 mR/hr which are consistent with previous readings that indicate the source was in the shielded position. The gauge is at the RSO's office and is being sent to Humboldt for electronics and housing repair and a wipe test. The incident was an accident. No violations could be issued to the licensee due to gauge user being present taking moisture readings and the driver of the rubber tire packer just did not see him."

Mississippi Event Number MS-200003

Notified R4DO (Silva), NMSS Events Notification (e-mail)

Agreement State	Event Number: 54925
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES Licensee: Fugro USA Land Inc Region: 4 City: Austin State: TX County: License #: L 03875 Agreement: Y Docket: NRC Notified By: Art Tucker HQ OPS Officer: Bethany Cecere	Notification Date: 10/01/2020 Notification Time: 12:10 [ET] Event Date: 10/01/2020 Event Time: 00:00 [CDT] Last Update Date: 10/01/2020
Emergency Class: Non Emergency 10 CFR Section: Agreement State		Person (Organization): PATRICIA SILVA (R4DO) NMSS_EVENTS_NOTIFICATION (EMAIL) ILTAB (EMAIL) CNSNS (MEXICO) (EMAIL)

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

Event Text

AGREEMENT STATE REPORT - STOLEN TROXLER GAUGE

The following was received from the state of Texas (the Agency) by email:

"On October 1, 2020, the Agency was notified by the licensee's radiation safety officer (RSO) that a Troxler model 3430 moisture\density gauge containing a 40 milliCurie americium-241 source and an 8 milliCurie cesium-137 source was stolen from an employee's truck. The truck was parked at the employee's residence and when they came out to go to the job site they found both chains securing the gauge in the truck were cut and the gauge was missing. The RSO stated they had notified local law enforcement and the fire department.

"The RSO stated their management group was searching social media looking for the gauge. The RSO stated they currently have people in the field looking for the gauge. The RSO stated the gauge operating arm was locked. The gauge would not create an exposure risk to any individual unless the lock was cut off the operating arm and the cesium source exposed. Additional information will be provided as it is received in accordance with SA-300."

TX Incident # 9803.

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	Event Number: 54926
Rep Org: FLORIDA BUREAU OF RADIATION CONTROL Licensee: NCH Imaging Medical Boulevard Region: 1 City: Naples State: FL County: License #: 4201-6 Agreement: Y Docket: NRC Notified By: Matthew Senison HQ OPS Officer: Brian P. Smith	Notification Date: 10/01/2020 Notification Time: 12:03 [ET] Event Date: 09/04/2020 Event Time: 00:00 [EDT] Last Update Date: 10/01/2020
Emergency Class: Non Emergency 10 CFR Section: Agreement State		Person (Organization): FRANK ARNER (R1DO) NMSS_EVENTS_NOTIFICATION (EMAIL)

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

Event Text

AGREEMENT STATE REPORT - LEAKING SEALED SOURCE

The Florida Bureau of Radiation Control reported the following via email:

"The RSO [Radiation Safety Officer] notified the BRC [Bureau of Radiation Control] by mail that a leak test performed on this source [217.6 microCurie Cs-137 e-vial] resulted in greater than 0.005 microCi of the acceptable removable contamination. After determination, the source was sealed within the shielded e-vial container using silicone. The outer shielded container had no removable contamination. The sealed container was then wrapped in plastic. The outer plastic also had no removable contamination. The area was evaluated for signs of removable contamination with no results above background. The licensee intends to dispose of this source through a licensed radioactive waste disposal company."

Florida Event Number: FL20-113

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

Power Reactor	Event Number: 54938
Facility: Monticello Region: 3 State: MN Unit: [1] [] [] RX Type: [1] GE-3 NRC Notified By: Matt Brunner HQ OPS Officer: Jeffrey Whited	Notification Date: 10/08/2020 Notification Time: 13:14 [ET] Event Date: 10/08/2020 Event Time: 11:25 [CDT] Last Update Date: 10/08/2020
Emergency Class: Unusual Event 10 CFR Section: 50.72(a) (1) (i) - Emergency Declared 50.72(b)(2)(xi) - Offsite Notification 73.71(b)(1) - Safeguards Reports		Person (Organization): BRIAN HOLIAN (NSIR) MIRELA GAVRILAS (NRR) JACK GIESSNER (R3 RA) ROBERT ORLIKOWSKI (R3DO) CHRIS MILLER (NRR EO)

Unit

SCRAM Code

RX Crit

Initial PWR

Initial RX Mode

Current PWR

Current RX Mode

100

Power Operation

100

Power Operation

Event Text

NOTIFICATION OF AN UNUSUAL EVENT

At 1125 CDT on 10/8/20 Monticello Nuclear Generating Plant declared a Notification of an Unusual Event (NOUE) due to a Security Condition that did not involve a hostile action, due to a helicopter that hovered over the site for approximately 10 minutes.

The unit remained at 100 percent power during the event.

The licensee notified the NRC Resident Inspector, the Minnesota State Duty Officer and the Wright County and Sherburne County Sherriff departments of the event.

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

* * * UPDATE ON 10/8/2020 AT 2013 EDT FROM JEFF OLSON TO JEFFREY WHITED * * *

"At 1715 CDT Monticello Nuclear Generating Plant terminated the Notice of Unusual Event (HU1.1), upon confirmation through federal law enforcement and conversation with the aircraft owner that the aircraft in question was performing power line inspections for a different utility and was not a threat to the plant. Monticello determined that this condition did not meet the 1-hour reporting requirements of 10 CFR 73.71."

Notified R3DO (Orlikowski), NRR EO (Miller), and IRD MOC (Gott). Additionally, notified DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).

Page Last Reviewed/Updated Wednesday, March 24, 2021