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Hazardous Waste Collection

  • Date: 10/13/2018 8:30 AM - 12:15 PM

Household Hazardous Waste Drop-Off Collection Event

San Mateo County residents can dispose of household hazardous waste (HHW) for free at a special collection event by appointment in Portola Valley on Saturday, October 13, 2018, from 8:30 am to 12:15 pm.

To participate, you must schedule an appointment at San Mateo County’s HHW Program: or by calling (650) 363-4718, select option 3. The event location will be disclosed once your appointment has been confirmed. No commercial waste is allowed. Residents are asked to turn off their engine and stay in their vehicle while waste is being removed.

Accepted items include cleaning products, fertilizers, pesticides, flammable liquids, fluorescent lights (compact and tubes), paint, 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 our water and soil. No radioactive, explosive, or medical waste.