Environmental Coalition of South Seattle

Nonprofit or community organization ecoss.org

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About us

ECOSS is a community-based non-profit organization working to protect our region’s natural resources, assist local businesses and provide information to diverse residents. We provide multi-lingual, environmentally-oriented education, technical resources, and other services that protect our watersheds, reduce pollution and hazardous wastes, and conserve water and energy.

 Founded in 1994 in the South Park neighborhood in South Seattle, ECOSS arose from the interest of community members in creating a working partnership among the different, and often conflicting, segments our community –residents, businesses, industry, and government- to collaboratively address environmental and community development needs of this area.  Today, ECOSS plays an active role in projects across the Puget Sound Region.


Contact information

Government ID number: 91-1613460

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Phone: (206) 767-0432

Fax: (206) 767-0203

605 S. Riverside Dr., Seattle, WA, 98108, US

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