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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

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Columbia Slough Watershed Council

Columbia Slough Watershed Council

The Columbia Slough Watershed Council is a diverse group of neighbors, property owners, businesses, environmental groups, recreation advocates, and government agencies who work to restore the Columbia Slough watershed.


The Council's mission is " to foster action to protect, enhance, restore and revitalize the Slough and its watershed." The council works to find common ground and form partnerships for restoration and enhancement projects as it advocates for the environmental and economic health of the watershed.