Hillsboro's water supply is set for a substantial upgrade with the Willamette Water Supply System (WWSS) nearing completion. After over a decade in the making, the WWSS aims to address upcoming water challenges and improve seismic resiliency for the community. According to an official release from the City of Hillsboro, the new water source—a treated supply from the Willamette River—will soon supplement the existing water provision, securing a more dependable system for future Hillsboro residents.
The integration of this enhanced source has seen the staff laboring diligently to ensure Hillsboro's distribution system is primed for the new supply within this year. Residents might notice minor alterations in water taste or odor during this time, though these effects are described as temporary and safe. "Thanks to our water treatment processes and rigorous water quality testing, most customers will not notice a difference in their water service," the city reassured citizens in a recent statement, adding, "But behind the scenes, Hillsboro will be better prepared than ever—with two water sources ensuring reliable, high-quality water for our community, even in emergencies."
The WWSS timeline released by the city traces the project's momentum from its inception in 2012 with a Long-term Water Supply Study. A rigorous selection process followed, with ample community engagement and the weighing of multiple water sources against criteria such as cost effectiveness, reliability, and ecological impact. The Willamette River emerged as the preferred source, leading to a series of design, permitting, and construction endeavors. Over 30 miles of pipeline were installed to convey water from Wilsonville to Hillsboro, aligning with other utility projects for reduced disruption and fiscal efficiency.
A notable stretch of this infrastructure journey includes the Cornelius Pass Road & Orenco Woods Nature Park Pipeline Construction, which was carried out between 2023 and 2024. This particular project not only facilitated the WWSS implementation but also yielded trail enhancements that increased public access and fortified habitats for fish and wildlife, reflecting a commitment to environmental consciousness alongside infrastructural progression. With the water treatment plant on track to be operational in 2026, multiple tests are to ensure its output aligns with stringent drinking water standards before reaching the faucets of Hillsboro homes.
As the commissioning and startup phase approaches, the Hillsboro community can anticipate a fortified water framework, capable of addressing the demands of the present and poised to cater to the evolving needs of generations to come. For many, the seamless transition will mark a quiet but critical bolstering of the city's resources—a testament to years of planning, partnership, and a persistent pursuit of sustainability and safety in utility services across the cityscape.
