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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

Columbia Slough Sediment Program

Columbia Slough Sediment Program Watershed Action Plan (2006)

Actions to improve slough sediment quality (PDF Document, 4,499kb)

Columbia Slough Sediment Program Watershed Action Plan (2011)

Actions to improve slough sediment quality (PDF Document, 7,487kb)

Columbia Slough Sediment Analysis

2006 analysis (PDF Document, 3,113kb)

State of the Slough 2011

Columbia Slough Sediment Program 2011 Annual Report

Columbia Slough Fish Tissue Analysis

2005 Sampling (PDF Document, 4,985kb)

State of the Slough 2010

Columbia Slough Sediment Program 2010 Annual Report

State of the Slough 2007

Columbia Slough Sediment Program 2007 Annual Report

State of the Slough 2009

Columbia Slough Sediment Program 2009 Annual Report

State of the Slough 2008

Columbia Slough Sediment Program 2008 Annual Report

Columbia Slough Sediment Analysis Cover Letter

Transmittal letter for the 2006 analysis (PDF Document, 102kb)