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Household Hazardous Waste
Disposing of Hazardous Materials
The Environmental Health Division of the San Mateo County Health Services Agency manages the Household Hazardous Waste (HHW) Program. The County's HHW Collection Facility is open every Thursday, Friday, and Saturday at the San Mateo facility (except major holiday weekends). These events provide residents with an opportunity to dispose of hazardous and toxic materials such as:
  • Paints
  • Automobile fluids
  • Pesticides
  • Poisons
  • Cleaning chemicals

This service is free, but requires an appointment. To schedule an appointment, call the San Mateo County Household Hazardous Waste Hotline at (650) 363-4718.


San Mateo City Hall – 330 West 20th Avenue, San Mateo, CA 94403

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