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2015 DMMP User Manual

Click the image below for the entire November 2015 User Manual as a PDF file.

2015 User Manual

Contact the DMMO


Mailing Address Seattle District
Dredged Material Management Office
PO Box 3755
Seattle, WA 98124-3755
Phones 206-764-6083

About the User Manual

The procedures in this User Manual replace guidance in all previous versions of the DMMP User Manual.  The updates apply to all projects in Puget Sound, on the Washington Coast, the north side of the Columbia River, and all other water bodies within the State of Washington.

This edition of the DMMP User Manual reflects technical and policy updates that have occurred through the sediment management annual review meeting process and public workshops. It is considered to be a living document and is revised periodically as needed to reflect changes made through the public review process.

To download the entire User Manual click the image to the left.  For separate chapters use the menu below.  Each chapter includes all relevant figures and tables.

Some of the most frequently referenced figures and tables are also posted separately in the menus below.

User Manual by Chapters, Figures and Tables

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2015 Chapter updates coming soon
2015 version coming soon
2015 tables coming soon


Seattle District has developed statistical analysis software called BioStat to facilitate bioassay statistical comparisons with appropriate reference sediments. Submittal of screen shots or statistical reports from BioStat will provide the documentation necessary to support summarized interpretations of bioassay data in the sediment characterization report.

To download a .zip file with all the files necessary to run BioStat, click here