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Our business is clean water

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Since 1970, we have combined science and nature to clean water and return it to the Tualatin River, so it can be used again.

Watch this short video about Clean Water Services’ story and mission.

Clean Water News & Stories

Water Releases Make Tualatin River a Year-Round Resource

The arrival of warm and dry weather and a hot forecast ahead prompted Clean Water Services (CWS) to begin releasing cool water on May 12, 2026. The Tualatin River is a vital source of water for Washington County communities, crops, and companies. To keep the Tualatin River flowing and healthy in dry months, CWS releases cool water from Hagg Lake and Barney Reservoir

An aerial view of where water is released from Scoggins Dam. Part of Hagg Lake is visible on the left, with trees and hills in the background.

How Clean Water Services Sets Rates for Your Community

Public Health Budget

Each year, Clean Water Services (CWS) develops an annual budget and sets rates to support essential wastewater and stormwater services across Washington County. These decisions help ensure that our communities have the infrastructure and services we need to protect public health, reduce flooding, and keep our waterways clean. Any changes to rates for the upcoming fiscal year would take effect on July 1.