Sullivan County Residents Can Safely Dispose Of Household Hazardous Waste On Saturday, Sept. 28, From 9 A.M. To 1 P.M. At Sullivan Central Middle School In Blountville. Items Like Cleaning Fluids, Pesticides, And Pool Chemicals Can Be Dropped Off For Free. The Event, Hosted By The Tennessee Department Of Environment And Conservation, Encourages Safe Disposal Of Hazardous Materials That Should Not Be Thrown In Regular Trash.