The Master Composter/Soil Builder (MC/SB) Volunteer Program is a key partner in Seattle’s waste reduction and recycling efforts. The primary goal of the MC/SB volunteer program is to increase resource conservation efforts by city residents through community outreach, demonstrations and educational support. City residents are encouraged to recycle organic wastes in their own backyards to build urban soils and create healthy landscapes throughout the city.

To learn more about becoming a Master Composter/Soil Builder, visit the Seattle Tilth website.

Master Composter/Soil Builder training is part of the Natural Soil Building Program, a partnership between Seattle Public Utilities and Seattle Tilth.