Mechanical failure in HVAC unit suspected cause of carbon monoxide leak and Milligan fieldhouse

An internal mechanical failure in a heating and air unit is the probable cause behind a February carbon monoxide leak at Milligan University’s Steve Lacy Fieldhouse, according to a newly released report by Elizabethton Fire Marshal Jeremiah Tolley. The February 4th incident forced the evacuation of hundreds of people after staff members complained of headaches. All individuals treated for exposure were safely discharged. The investigation found no evidence of criminal intent, noting that well-maintained vent piping pointed to an internal malfunction. Tolley also explained that the fieldhouse’s carbon monoxide detector did not sound because gas levels likely stayed below the strict time and concentration thresholds required to trigger the alarm. Notably, a detector was not even required by fire codes for the building. In a statement, Milligan University confirmed that the natural gas-fired heating units supplying the pool area have been completely replaced. The university has also expanded its detection coverage and is launching a campus-wide modernization of its fire and life-safety infrastructure.