Our Region's Water

Curious about where your water comes from?

Water is our number one natural resource. We rely on high quality water for drinking, protecting public health, recreation, sustaining our economy, fire protection, and fish and wildlife. The Portland, Oregon metropolitan area is fortunate to have multiple sources of water: the region has four main surface water sources including the Bull Run watershed, the Trask and Tualatin Rivers, the Clackamas River, and the Willamette River. There is also supply from groundwater, wells, and aquifer storage and recovery (ASR). Smaller surface water sources include Gales Creek, Alder Creek, and Brownell Springs.