Welcome to the
Joint Water Commission
Delivering safe, high-quality drinking water to communities in Washington County, Oregon since 1976
Who We Are
The Joint Water Commission (JWC) is the primary drinking water supplier in Washington County, Oregon, and is responsible for treating, transmitting, and storing drinking water for more than 458,000 customers.
Four agencies share ownership in the JWC - Cities of Hillsboro, Forest Grove, and Beaverton, and the Tualatin Valley Water District (TVWD). The JWC also wholesales water to the City of North Plains.
What We Do
Treatment
Our comprehensive water treatment process includes eight steps from raw water intake to delivery of clean, fresh drinking water right to your tap. Find more details about our process here.
Storage
The Joint Water Commission’s Fernhill Reservoirs play a critical role in ensuring a reliable supply of safe drinking water. These facilities can store up to 40 million gallons.
Transmission
The Joint Water Commission (JWC) sends water to each of its five member agencies through gigantic pipes called "Transmission Lines".
Projects
The Joint Water Commission invests in infrastructure to improve treatment, transmission, storage, and seismic resilience. It also creates plans and programs to strengthen capacity and emergency readiness.
JWC News
Joint Water Commission Highlighted as Tree for All Partner
The Joint Water Commission (JWC) was recently profiled in a Tree for All Partner Spotlight. The article celebrates the JWC’s commitment to source water protection, continued risk assessment, and water management…
Joint Water Commission Continued Producing Safe Drinking Water during Chlorine Supply Disruption
Despite the recent chlorine supply shortage, the Joint Water Commission (JWC) continues to safely produce clean, high-quality drinking water for more than 450,000 customers in Washington County, Oregon. The JWC…
Drinking Water Produced by the Joint Water Commission is Safe to Drink & Use During Chlorine Shortage
The Joint Water Commission (JWC) was recently notified of a chlorine shortage caused by an equipment failure at a manufacturing facility on the west coast. As the primary drinking water…