The following was received from the
North Carolina Department of Health and Human Services via email:
General Licensee discovered a defective shutter on one of its fixed gauges while performing leak tests. The shutter was discovered as being completely removed and the gauge remains in the open (source exposed) position. Per the licensee, during its previous leak test in May 2016, the shutter was intact on the gauge at that time. From the time of the previous leak test to present it is unknown how long the shutter was removed from the gauge. Per the licensee, the gauge is positioned with the radiation exposure pointing downward toward its product line where density measurements are determined.
Currently, the licensee's operations are continuous and the gauge remains in the open position during operations to support business output.
Discussions with the licensee were held concerning potential radiation exposures to members of the public and its employees. It was determined that due to the design of the licensee's manufacturing process it would be incredibly difficult for anyone to safely come within the immediate vicinity of the gauge with the defective shutter. An entire shut down of the licensee's manufacturing process would have to occur for anyone to gain any safe method of access to the defective gauge, in which the licensee stated, has not occurred since the most recent leak test when the defective gauge was discovered.
This in an ongoing investigation and more details will be forthcoming.
Source Material: Am-241
North Carolina Item Number: NC160025