You can properly dispose of all household hazardous waste (HHW) for free at local HHW facilities. These corrosive, flammable, or toxic materials can accumulate in your garage or yard and endanger you, your family, and the environment. Remember to never pour leftover materials down the sink, toilet, or storm drain. HHW includes: Batteries Paint Fluorescent light bulbs Automotive fluids Household cleaners Pesticides Propane tanks Visit the Santa Clara County Household Hazardou