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Hazardous materials (Haz waste)

Learn about hazardous waste and how to get rid of it safely in King County.

If you live in King County, there is no fee to drop off your household hazardous waste at a collection site. We also accept hazardous materials for no fee from eligible businesses.

What is hazardous waste?

Many everyday products contain ingredients that are toxic, corrosive, flammable, or reactive.

When hazardous materials are not disposed of properly, they can be harmful to people, wildlife and the environment.

Hazardous products often include:

  • Paint thinner
  • Batteries
  • Motor oil
  • Fluorescent lights
  • Pesticides

See a full list of hazardous products and guidance how to dispose of them on the Hazardous Waste Management Program website:

How do I get rid of hazardous waste?


If you live in King County, you can take your household hazardous waste to any of our three collection sites or to one of our Wastemobile events.

  • North Seattle Household Hazardous Waste Facility
  • Factoria Hazardous Waste Drop-Off Service
  • South Seattle Household Hazardous Waste Facility
  • Auburn Wastemobile
    The Auburn Wastemobile location is open on weekends, year-round.
  • Traveling Wastemobile (seasonal)
    Wastemobile events travel to communities throughout King County from February through October.

Visit the Hazardous Waste Management Program to see details about all disposal locations.


We offer eligible businesses no-fee disposal up to 4 times a year. Businesses must meet certain requirements and complete a disposal form to qualify. Visit the Business Hazardous Waste Disposal page or call 206-296-4692 for eligibility requirements and more information.

Safety tips for transporting items

  • Don't mix or combine products.
  • Keep products in their original containers whenever possible.
  • Label products that are not marked.
  • Secure products so they won't tip or leak.
  • Cover and tie down your load. Please stay in your vehicle while unloading at the Auburn Wastemobile or traveling Wastemobile locations.
  • Don't transport products in the passenger compartment of your vehicle.