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News and events

Find the latest news stories, press releases, and upcoming event information from the Hazardous Waste Management Program.

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Upcoming events schedule

EVENT

Natural Yard Care - Introduction to Botany

 

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King County Library - Skyway

12601 76th Ave. SW | Seattle, WA 98178

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March 25, 2026

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6:30 p.m. to 7:30 p.m. 

  

 


 

Gardeners benefit from learning the basics of botany so you can manage a thriving garden. This class will cover basics of plant morphology, how plants grow, what they need, their flower and fruit cycles and how light affects them. Your choice of garden tasks and timing matters.

King County Library System – registration required.

 

 

 

 

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EVENT

Wastemobile - Vashon

 

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K2 Commons  

19215 Vashon HWY SW  | Vashon, WA 98070

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March 27 - 29, 2026

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10:00 a.m. to 5:00 p.m., daily

 

 


 

The Wastemobile offers seasonal hazardous waste collection events in King County communities, providing community members a free, convenient place to take their household hazardous waste - like batteries, pesticides, motor oil, and more. There is no fee to use this service. 
  

 

 Find event information

 

 

EVENT

Natural Yard Care - Container Gardening

 

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Seattle Public Library - Queen Anne 

400 W. Garfield Street  | Seattle, WA 98119

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April 3, 2026

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2:00 p.m. to 3:30 p.m.

 

 


 

Learn how to make the best of small spaces and grow plants in containers. Get the basics of container growing for your apartment or small spaces with expert help. Learn about the best potting soil, plant varieties and container choices for edible, herbal and flowering plants you can enjoy or even harvest for dinner. Take home a small container to get you started.

Thanks to our partner The Garden Hotline.

Registration is required. Register here.

Walk-ins are welcome if space allows.

Families are welcome; children must be accompanied by a caregiver.

 

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EVENT

Wastemobile - Carnation/Duvall 

 

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Tolt MacDonald Park 

3600 Block of Tolt Ave  | Carnation, WA 98014

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April 10 - 12, 2026

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10:00 a.m. to 5:00 p.m., daily 


 

The Wastemobile offers seasonal hazardous waste collection events in King County communities, providing community members a free, convenient place to take their household hazardous waste - like batteries, pesticides, motor oil, and more. There is no fee to use this service. 

 



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EVENT

Residential Services - Glow up without the Toxins 

 

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King County Library - Burien

400 SW 152nd Street | Burien, WA 98166

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April 12, 2026

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2:00 p.m. to 3:15 p.m.

 


 

Our favorite scents can remind us of home and pleasant memories. While these products may be used to clean our homes or care for our hair and skin, avoiding synthetic fragrances and harmful chemicals can help protect both your health and the environment.

Join us for games, poetry, and art in this interactive workshop with Hazardous Waste Management Program in King County to understand how you can avoid common ingredients like formaldehyde, how these chemicals can impact our bodies, and how to check if your current products are safe. Discover simple ways to choose safer products with natural scents that still feel like home!

Registration is required.  

 

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EVENT

Wastemobile - Bothell/ Woodinville

 

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UW Bothell Campus

18115 Campus Way NE  | Bothell, WA 98011 

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April 17 - 19, 2026

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10:00 a.m. to 5:00 p.m., daily


 

The Wastemobile offers seasonal hazardous waste collection events in King County communities, providing community members a free, convenient place to take their household hazardous waste - like batteries, pesticides, motor oil, and more. There is no fee to use this service. 

 

 

 

  

 

Find more information


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