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Tri-City Water Pollution Control Plant

Water Environment Services

Water Environment Services provides wastewater collection and treatment and water quality enhancement services for Clackamas County communities.

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Plant tour

What happens after you flush? Now is your chance to find out. This month, the public is invited to attend three open houses/tours at its state-of-the-art Tri-City wastewater treatment facility in Oregon City. Space is limited, so register now!

We're running out of space. And time.

We're approaching a critical threshold with wastewater treatment capacity. We have a plan to address this capacity challenge so our region can maintain economic growth while protecting public health and the environment. Read the story.

We want to hear from you. We’ve recently completed a draft Stormwater Management Plan for our Municipal Separate Storm Sewer System (MS4) Permit and welcome your review and comments. This plan will guide the implementation of our stormwater management program upon approval by Oregon Department of Environmental Quality. The MS4 is a network of storm sewer systems that discharge stormwater into creeks, rivers, and wetlands in the urbanized portion of Northwest Clackamas County.

We also welcome your comments on our draft Total Maximum Daily Load Benchmark Summary, which pertains to a small set of pollutants, such as bacteria, that are discharged by our MS4.

Please email your comments to Andrew Swanson, WES Water Quality Analyst, or deliver to WES at 150 Beavercreek Road, Oregon City, OR 97045 by 8:30 a.m. on Tuesday, Feb. 21, 2017. We hope to hear from you!

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Water Environment Services

Development Services Building

Contact Us

Water Environment Services
150 Beavercreek Rd. Oregon City, OR 97045


Monday - Thursday
7:30 a.m. to 5:30 p.m.