Protecting Oregon's Environment
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Oregon Department of Environmental Quality

Water Quality

Water Quality Standards


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 WQ Info Guides:
by alphabet
by category

Water Temperature Standard

Oregon's Temperature Standard

Adopted by the Oregon Environmental Quality Commission (EQC) December 2003 and approved by the U.S. Environmental Protection Agency (EPA) March 2004.

Information and Guidance Documents

February 2007 Revisions

The temperature criteria for natural lakes, oceans and bay, Borax Lake Chub and cool water species were revised by the EQC in February 2007:

EPA Temperature Guidance

Federal Court Opinions and Orders

Related Documents

[print version]

For more information about DEQ's Water Quality Standards contact Debra Sturdevant by phone at (503) 229-6691 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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