Event Notification Report for September 22, 2021

EN Revision Imported Date: 9/22/2021

EN Revision Text: AGREEMENT STATE REPORT - DAMAGED MOISTURE DENSITY GAUGE

The following information was received from the state of Oklahoma via email:

"On August 30, 2021, [one] of Thunderhead Testing's portable density gauge operators was on a construction site near Vian, Oklahoma. At approximately 1530 CDT, after completing a density/moisture measurement, one of the contractor's employees struck the gauge with a pickup truck. The gauge operator claims he was instructed by the superintendent to do the density measurements in front of the job superintendent's truck. When the operator had completed the density measurements and retracted the probe safely back into home position in the gauge, he turned around to pack up the gauge to move to the next location. As he turned to open the transport case, the job superintendent moved his truck to go to the next location and ran over the gauge. The superintendent stopped and the technician immediately secured the area and notified his RSO [radiation safety officer]. The RSO stated that the survey meter measurements indicated a radiation level at the gauge of 0.02 mR/hr indicating no breach of the source capsules and no leakage. The operator photographed the gauge/incident area and then placed the gauge and gauge pieces into the case, properly secured it per standard transportation protocol and then transported it back to the storage location in Bixby, Oklahoma. Upon arrival at the lab in Bixby, the operator conducted a leak test and then shipped the completed test via expedited, next-day delivery to InstroTek (NC) for analysis. The leak test report [was provided to the NRC]. With the leak test results indicating the integrity of the sources had not been compromised, arrangements were made with InstroTek to ship the gauge to InstroTek's facility in NC for proper disposal."

The gauge was a Troxler Model 3430, serial number 16349, and contains 40 mCi Am241:Be and 8 mCi Cs-137.

Oklahoma Department of Environmental Quality is initiating a reactive inspection and is waiting for further details including date and time.

EN Revision Imported Date: 9/22/2021

EN Revision Text: AGREEMENT STATE REPORT - DAMAGED TROXLER GAUGE

The following information was received from the state of Kansas via email:

"At approximately 0830 CDT on Tuesday, September 14, 2021, a Kansas licensee notified the state of Kansas of an incident involving a Troxler gauge, Model 3430, serial number 32617. The incident occurred in Barton County, Kansas, on US 156 highway where resurfacing work was occurring. The Troxler gauge was run over by a motorist when an employee of the general contractor overseeing the road surfacing project directed traffic down the lane on which the licensee was working. A tractor trailer hit the gauge and the device was dragged several hundred meters. It was recovered and isolated promptly after a short search. The source shutter was open and the device was in the back scatter mode. At 1300 CDT on September 14, 2021, a Kansas Radiation Control Program inspector arrived at the scene and conducted an on-site reactive inspection. The inspector interviewed the licensee and contacted the local law enforcement who were involved in the retrieval of the device. The inspector conducted radiological surveys of the device. Using the inspector's survey meter, Ludlum 2401-EC, it was determined that the device's shielding was intact. The exposure rate outside the shutter opening exceeded the capability of the survey meter, but all other areas read less than 20 mR/hr. Once the shutter was closed and device was surveyed again the readings decreased. The shutter opening was still the highest exposure rate at 10 mR/hr at approximately three inches away. It was possible to return the device to the fully shielded position with the shutter closed. The device was then placed back in the transport box and surveys showed the Transport Index was below [Department of Transportation] DOT requirements for transporting back to the licensee's office. At the office, a leak test will be performed.

"This report will be updated with additional information describing dose assessment, root cause analysis, corrective actions and possible citations when a full investigation is completed."

EN Revision Imported Date: 9/22/2021

EN Revision Text: AGREEMENT STATE REPORT - MISSING RADIOACTIVE SOURCES

The following is summary of information received from the state of Washington via email:

On August 13, 2021, the University of Washington Radiation Safety concluded that it was unable to locate two Gd-148 sources with activity totaling 0.0882 microCi and one Am-241 source with activity 0.982 microCi. Internal radiation exposure to these sources is highly unlikely, and any external exposure to the sources would not be considered a public health and safety concern. It is probable that the sources are still in the facility, but since they cannot be located they are considered missing. The root cause of the problem is a lack of documentation of source use and storage locations. Corrective actions were taken by Radiation Safety to prevent future loss of material.

WA incident no.: WA-21-021

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

EN Revision Imported Date: 9/22/2021

EN Revision Text: AGREEMENT STATE REPORT - MISSING RADIOACTIVE SHIPMENT

The following information was received from the state of Arkansas (the Department) via email:

"The Department received notification on June 16, 2021, from licensee 3D Imaging Drug Design and Development, 3DI, that a package containing 87 milliCi of Zr-89 did not reach its shipping destination.

"Upon review of the event, the Licensee transferred the package via [common carrier] pick-up from its Little Rock, Arkansas campus on Saturday June 12, 2021, with a scheduled delivery date of June 14, 2021. The package destination was:

"Memorial Sloan Kettering
1275 York Avenue
New York City, New York

"On June 16, 2021, the package was reported missing to the Department and the activity of the package was estimated to be approximately 30 milliCi based on the 3.2 day half-life of Zr-89.

"The licensee had contacted the [common carrier] and the [common carrier] stated that they were unable to locate the package. Department inspectors visited the 3DI campus on June 18, 2021 and questioned the Licensee about the lost package. At that time, and currently, the [common carrier] has been unable to locate the package. The Department has spoken with multiple individuals associated with the [common carrier], both at the Little Rock location and with the companies Dangerous Goods Administration Department, about the lost package. The Department has also followed up with 3DI.

"The associates at the [common carrier] were able to confirm that the package was received and scanned. After acceptance, and the initial scan of the package, there are no other scans available to determine what has happened to the package. 3DI stated that the company has experienced additional shipping problems since the lost package. 3DI has had additional packages that have been scanned and shipped to Licensees other than the intended recipient. All additional packages have been able to be located and recovered or reach their final destination successfully.

"The initial package of Zr-89 remains missing. The Department has requested and is awaiting the 30 Day report from 3DI as required. The Department considers this incident open pending location of the missing package and will update this report as information is received. "

AR incident no.: AR-2021-007

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"