About 800 workers on the K-25/K-27 demolition project at East Tennessee Technology Park (former K-25 site) put in more than 2 million man-hours or 600 work days without an accident or injury that resulted in an employee missing work.

Work inside the deteriorating structures that were the first to enrich uranium using the gaseous diffusion method for the first atomic bomb requires not only special skills but great care to manage the hazards associated with the buildings and the work that is being done there.