About Us

Who & Where We Serve

Everything we do at Clean Water Services aims to protect public health, while enhancing the natural environment of the Tualatin River Watershed.

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We are a water resources management utility that combines science and nature to clean water and return it to the Tualatin River so it can be used again. We work in partnership with others to safeguard the river’s health and vitality, ensure the economic success of our region, and protect public health for more than 600,000 residents and businesses in urban Washington County, Oregon.

In conjunction with 12 partner cities, we provide sewer and Surface Water Management (SWM) to over 600,000 people in the urban areas of the Tualatin River Watershed (PDF), which closely follows the urban growth boundary.

The partner cities are Banks, Beaverton, Cornelius, Durham, Forest Grove, Gaston, Hillsboro, King City, North Plains, Sherwood, Tigard, Tualatin, small portions of Lake Oswego, small portions of Portland, and portions of Clackamas and Multnomah Counties.

Creating a Resilient and Connected Community

We Believe in Compassion

We believe in our employees, our community, and our environment. As essential service providers, CWS maintains quality service for our community and watershed while ensuring employee safety.

We Believe in Resilience and Adaptation

We are dedicated to ensuring we can continue to manage the region’s water resources — through innovation, collaboration, and stewardship — in the face of climate change, the current pandemic, and future challenges.

We Believe in Partnerships

We do everything in partnership. From tree planting and pipe repair to student education and water supply planning, the impact and scale of our efforts are possible only by working with others.

We Believe in Science and Research

We anticipate and solve the complex water challenges of the region through research and innovation in the face of population growth, water quality demands, climate change, and the needs of the sensitive Tualatin River.

We Believe in Equity and Culture

CWS honors all people in our region and workplace by embedding diversity, equity, and inclusion into our services, employment practices, and the way we conduct our daily business.