Designing for seismic resiliency
The plant was built on bedrock with ASCE-certified systems to reduce risks from earthquakes, floods and other hazards.
Client
Willamette Water Supply System Commission
Location
Portland, Oregon
Markets
Building a resilient water system to meet demand
The Tualatin Valley Water District sought to create a seismically secure water supply system with a new 60-mgd treatment plant. The project emphasizes the “4Rs”—resiliency, reliability, recovery and redundancy, ensuring safe drinking water, public health protection, and rapid recovery during emergencies.
Applying advanced treatment technology
Ozone and UV processes ensure high-quality water that meets regulations even after natural disasters.
Conducting “4R” hazard workshops
A two-week Hazard and Operability (HAZOP) study identified system-wide provisions, lowering operational risks.
Embedding operational redundancy
Multiple treatment trains and diesel backup provide flexibility and five-day emergency capacity via standby generators.
The Willamette Water Supply Program sets a new benchmark for resilient water infrastructure, integrating advanced technologies and cutting-edge seismic safeguards. With demand projected to rise sharply, this facility positions the region to meet future needs while protecting public health. By focusing on resiliency in design, construction, and operations, the program raises the bar for water system projects across the nation.
Client
Willamette Water Supply System Commission
Location
Portland, Oregon