The City of Monrovia will be hosting a FREE Household Hazardous Waste and Electronic Waste Drive-Thru Collection event of Saturday, October 29, from 9 a.m. to 3 p.m., at the Public Works Yard located at 600 S. Mountain Avenue. Take the opportunity to dispose of any hazardous substances in your home for FREE. Hazardous waste is considered any leftover product that is labeled toxic, poison, corrosive, flammable, combustible or irritant that you want to discard.