Hi all MCSS and MCSB!

Look here for information, refreshers, or updates that help make your volunteer activities easy and fun. Be sure to bookmark this page for important links and Quick Guides for you to use when you are in the public, and further reading.

At MCSS, we focus on composting, soil health, recycling and preventing waste for the city of Seattle. For services in King County outside of Seattle, the RainWise program, gardening questions, and more, we direct people to the Garden Hotline at  gardenhotline.org or (206) 633-0224.

Waste Prevention and Sorting

Food Waste

Compost and Soil Health

Quick Guides and Links

More Resources


Autumn Leaves

More Resources

Increasing my Impact as a Volunteer

SPU Brochures and Flyers

Building Plans and Fact Sheets

  • Coming soon

Digging Deeper

Partner Programs


The City’s vaccination mandate has been lifted. However, if you experience COVID-19-like symptoms or feel otherwise sick, please stay home.
Some of our community partners may continue to have specific expectations which we will communicate with you.