Willamette & Tualatin River TMDL Plans

The Oregon Department of Environmental Quality (DEQ) has set Total Maximum Daily Loads (TMDLs) for water bodies located in the Willamette River Basin.  Any agency or municipality that has legal authority over activities or areas that are sources of pollutants that impact water quality are known as Designated Management Agencies (DMAs). DMAs that are responsible for areas discharging to a TMDL water body must develop an Implementation Plan describing strategies to be undertaken to address TMDL Pollutants.  Citizens interested in learning more about TMDLs impacting the Tualatin and Willamette River can find more information attached below.