Warren County residents who have accumulated unwanted hazardous materials around their homes should mark their calendar to take advantage of Tennessee’s free Household Hazardous Waste Collection Event to be held Saturday, March 29 from 9 a.m. to 1 p.m. at Three Star Mall. The event is being sponsored by Warren County Government and the Tennessee Department of Environment and Conservation.Household hazardous waste is defined as corrosive, flammable, toxic or reactive materials used in or around your home or garage that are no longer wanted or have become unusable. These types of materials should be properly disposed of and should not be included with regular garbage.The state will have a household hazardous waste mobile collection site set up in the mall parking lot the day of the event which will allow local homeowners to safely dispose of all those leftover household chemicals, lawn and garden products, and automotive materials they didn’t know how to get rid of before.The environmentally conscious disposal of these materials will cost consumers nothing.