Protecting Oregon's Environment
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Oregon Department of Environmental Quality

Water Quality

Willamette Basin

Willamette Home
The Problem
The Solution
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Fact Sheets/
Overview Maps
TMDL Implementation
Technical Data
Related Info

 WQ Info Guides:
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Willamette Basin - Total Maximum Daily Loads (TMDLs)

The purpose of this website is to let you know about the positive actions being accomplished and undertaken to improve water quality in the Willamette River and its tributaries.



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For more information on DEQ's Water Quality Division and its programs, see our contact page.


Oregon Department of Environmental Quality
Headquarters: 700 NE Multnomah Street, Suite 600, Portland, OR 97232
Phone: 503-229-5696 or toll free in Oregon 1-800-452-4011
Oregon Telecommunications Relay Service: 1-800-735-2900  FAX: 503-229-6124

The Oregon Department of Environmental Quality is a regulatory agency authorized to protect Oregon's environment by
the State of Oregon and the Environmental Protection Agency.

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