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Thermal infrared image of springs in the North Fork Stillaguamish River (river mile 27) on September 7, 2001.

Water Temperature Assessment in Washington State

Welcome to the water temperature assessment website! The Department of Ecology maintains a staff of scientists that conduct technical studies across a broad spectrum of temperature-related issues in rivers and streams. Current staff members on the temperature team include:

Thermal infrared (TIR) and color video aerial surveys

TIR surveys requested for Ecology TMDL studies:

Washington State TIR flights completed by Watershed Sciences in 2000-2004, including those contracted for by federal, tribal, local, or state agencies:

Total Maximum Daily Load studies

Water quality standards

Listings under section 303(d) of the federal Clean Water Act

Models used for Total Maximum Daily Load studies


For more information on water temperature assessment at Ecology, contact: Karol Erickson (keri461@ecy.wa.gov).  For questions about this website, please contact Greg Pelletier (gpel461@ecy.wa.gov).