News and events
Find the latest news stories, press releases, and upcoming event information from the Hazardous Waste Management Program.
Featured news
Upcoming events schedule
EVENT
Natural Yard Care - Introduction to Botany
King County Library - Skyway
12601 76th Ave. SW | Seattle, WA 98178
March 25, 2026
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.
EVENT
Wastemobile - Vashon
K2 Commons
19215 Vashon HWY SW | Vashon, WA 98070
March 27 - 29, 2026
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.
EVENT
Natural Yard Care - Container Gardening
Seattle Public Library - Queen Anne
400 W. Garfield Street | Seattle, WA 98119
April 3, 2026
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.
EVENT
Wastemobile - Carnation/Duvall
Tolt MacDonald Park
3600 Block of Tolt Ave | Carnation, WA 98014
April 10 - 12, 2026
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.
EVENT
Residential Services - Glow up without the Toxins
King County Library - Burien
400 SW 152nd Street | Burien, WA 98166
April 12, 2026
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.
EVENT
Wastemobile - Bothell/ Woodinville
UW Bothell Campus
18115 Campus Way NE | Bothell, WA 98011
April 17 - 19, 2026
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.
Go to events calendar
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