Protecting Oregon's Environment
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Oregon Department of Environmental Quality

Water Quality

Total Maximum Daily Loads (TMDLs) Program


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The Grande Ronde Basin

Positive actions are being undertaken and accomplished to improve water quality in the Grande Ronde River and its tributaries. We appreciate your interest and involvement. Together we can work towards a better river environment for everyone.

Lower Grande Ronde Subbasin Inmaha Subbasin Wallowa Subbasin Upper Grande Ronde Subbasin Grande Ronde Basin

Forward Looking Infrared (FLIR) Remote Sensing Survey Reports

Imnaha Subbasin

  TMDL Report In-Progress (Data analysis and report writing phase)

Lower Grande Ronde Subbasin

  TMDL Report In-Progress (Data analysis and report writing phase)

Upper Grande Ronde Subbasin

  TMDL approved by the U.S. Environmental Protection Agency (EPA) on May 3, 2000

Wallowa Subbasin

  TMDL Report In-Progress (Data analysis and report writing phase)

Contact Information

[print version]

For more information about DEQ's Total Maximum Daily Loads (TMDLs) Progam contact Gene Foster by phone at (503) 229-5325 or by e-mail.

Oregon Department of Environmental Quality
Headquarters: 811 Sixth Ave., Portland, OR 97204-1390
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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