Willamette Water Supply System
The Willamette Water Supply System will provide the region with an additional water supply for the future.
When the system is operating in 2026, customers in the Tualatin Valley Water District, the City of Hillsboro and the City of Beaverton will be served by an expanded intake facility, a new state-of-the-art treatment plant, and over 30 miles of large diameter transmission pipe. All these system components are being built to today's seismic standards to assist with the region's recovery after a natural disaster. The total project costs are estimated at $1.6 billion.
Willamette Water Supply Commission (WWSC)
Willamette Intake Facilities Commission (WIFC)
Willamette River Water Coalition (WRWC)
The Willamette Water Supply System is a regional asset, with partners and joint owners in the various components to meet the jurisdictional needs. Each of these functions has a board consisting of representatives from the partners owning that specific component.
The Willamette River upper tributaries originate in the mountains south of Eugene. The river flows northward through the Willamette Valley to its confluence with the Columbia River in Portland. The flow from the Willamette River accounts for 15% of water in the mighty Columbia River.
Over the last 30 years, stringent environmental protection laws and significant restoration activities have improved water quality conditions in the Willamette River. Efforts continue to improve the health of the Willamette River basin through studies, cleanup efforts, and coordination by regulatory agencies and drinking water providers.
