Hydrogen fluoride, a potentially deadly chemical, released in a small enclosure at the Y-12 National Security Complex in Oak Ridge, TN, April 4 and required an emergency response.
Two sensors went off shortly before 8 a.m. indicating the chemical had been released in an area about the size of a walk-in closet within a large room at 9212, the complex that handles uranium processing, officials said.
At that time, Y-12 initiated its emergency response for the incident.
By sometime around 9 a.m., the incident was under control and the all-clear was given regarding the incident.
Officials confirmed personnel in an isolated area near the chemical were evacuated, although no external sensors went off, and there was never any danger to personnel.
Y-12 has an incident investigation going on to uncover how much of the chemical was leaked out. There was no indication it was a malevolent event or the chemical was released from an external source, officials said.
But, they said they do have a good idea of where exactly the leak occurred in terms of line, tank, connection.
There was no impact to the Oak Ridge National Laboratory, a spokesperson confirmed.