Event Notification Report for December 09, 2019

AGREEMENT STATE REPORT - LOST TRITIUM EXIT SIGN

This is a summary of information received from the state of Nebraska via a phone call:

On December 2, 2019, the state of Nebraska identified a lost tritium exit sign that was improperly transferred by the licensee to the state of Wisconsin. The general licensee indicated that they transferred the exit sign to a electronics company in Wisconsin, which was not licensed to possess radioactive materials. It is believed that the sign was reused by the electric company. The company was contacted and is working with the Wisconsin Department of Health on ascertaining the exit sign's location.

The tritium exit sign is a Isolite model 2000 (S/N: H114041) with an activity of 12.57 Ci.

No further investigation is planned at this time and Nebraska has closed the event.

Nebraska incident number: NE190006

* * * RETRACTION ON 12/20/2019 AT 1011 EST FROM DEB WILSON TO ANDREW WAUGH * * *

This is a summary of information received from the state of Nebraska via email:

On 12/12/2019 the Wisconsin Radioactive Program confirmed the sign (S/N: H114041) had been found and installed in Joliet, IL.

Notified R4DO (Drake) and NMSS Events (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 REPORT - LOST AND FOUND MOISTURE DENSITY GAUGE

The following was received via email from the Arizona Department of Health Services:

"On December 9, 2019, the Department [Arizona Department of Health Services] was notified of a stolen portable gauge. Shortly after the initial notification, the licensee called back to update their notification and said the truck was impounded with the gauge secured in a metal box in the back of the truck. The gauge is an Instrotek Xplorer 3500. The Department is continuing to investigate the event.

"Additional information will be provided as it is received in accordance with SA-300."

Arizona incident number 19-031

MAIN STEAM LINE (MSL) RADIATION MONITOR TO BE NON-FUNCTIONAL

"1-RE-2328 Main Steam Line #1-04 MSL181 received an operate failure on loss of counts. At time 2126 [CDT], the radiation monitor was declared non-functional.

"With this radiation monitor non-functional, all of the emergency action levels for a steam generator tube rupture in steam generator 1-04 could neither be evaluated nor monitored. This unplanned condition is reportable as a loss of assessment capability per 10 CFR 50.72(b)(3)(xiii).

"Comanche Peak Nuclear Power Plant (CPNPP) has assurance of steam generator integrity and fuel cladding integrity. There is a negligible safety significance to the current condition from a public health and safety perspective.

"Additionally, compensatory measures are in place to assure adequate monitoring capability is available to implement the CPNPP emergency plan in the unlikely event of challenges to the steam generator or fuel cladding. The N16 radiation monitor serves as a backup with alarm function and additionally Radiation Protection technicians have been briefed on taking local readings with a Geiger-Mueller tube on MSL 1-04.

"Corrective actions are being pursued to restore 1-RE-2328 to functional status.

"The NRC Resident Inspector has been notified."