About the project
The Tualatin Basin Water Supply Project Partnership was authorized by Congress in 2004 to design and secure Washington County's water supply, respond to anticipated climate change and drought cycles, and meet the 50-year supply needs for water quality and critical habitat improvements in the Tualatin Basin.
Scoggins Dam is the central component of Washington County’s water supply and a major regional asset. It uses water from Hagg Lake to support more than 250,000 jobs, provide drinking water for nearly 400,000 residents, irrigate 17,000 acres of cropland, and sustain water quality in the Tualatin River to protect fish and wildlife habitats.
The project is a collaborative effort among local water resourses agencies. Clean Water Services is the lead agency for the project, providing project management and public involvement.