Household Hazardous Waste Disposal

The San Mateo County Household Hazardous Waste Program is hosting a drop-off event in Foster City on Saturday, August 27, 2022. Appointments are required in order to participate and can be made at San Mateo County’s HHW Program website: https://www.smchealth.org/post/make-hhw-drop-appointment, or by calling (650) 372-6200. The event location will be disclosed once your appointment is confirmed.

There is a strict limit of 10 gallons or 50 pounds per appointment (per car load). No commercial, radioactive, explosive, or medical waste is allowed. Accepted items include cleaning products; fertilizers and garden chemicals; pesticides, herbicides and rodenticides; solvents; flammable liquids; fluorescent lights (compact and tubes), paint thinner, acids/bases, aerosol cans, automotive supplies (car batteries, motor oil, oil filters, antifreeze, brake fluid), inks, and photo chemicals.

All waste collected is reused, recycled, or stabilized for proper disposal to achieve zero waste and prevent any items from going to the landfill and contaminating water and soil.

Residents unable to attend this event are reminded that they can dispose of household hazardous waste any time for free at San Mateo County’s permanent HHW facility on Thursdays through Saturdays (except major holiday weekends). Appointments are available at www.smchealth.org/post/make-hhw-drop-appointment or by calling (650) 372-6200. Safe recycling/disposal of paint, fluorescent lights, household batteries, and used motor oil/filters do not need an appointment.