KINGSPORT, Tennessee – The Domtar Packaging Mill in Kingsport has operated for decades, and residents have noticed one significant aspect of the mill that some believe has caused community strife: the smell. The Tennessee Department of Environment and Conservation (TDEC) is currently investigating three complaints about the odor from Domtar between March 31 and April 1. The TDEC said: “Although TDEC does not regulate odors, we do want to ensure that the facility is complying with its permit conditions.” …At the last Kingsport Economic Development Board meeting on April 1, Domtar updated the board on the wastewater treatment system plan. …The short-term plan involves reducing mill material losses and flow and optimizing the current wastewater treatment system. Domtar says this will last around a year. The long-term plan involves building a new anaerobic digester system. Domtar estimates that this project could take up to 18 months.