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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

More Contact Info

  • Learn About Salmon in Portland Did you know Portland is working to recover and protect local endangered salmon?

  • Financial Assistance Need help paying your bill? Click here for information on financial assistance

  • We are Portland's sewer and stormwater services provider.

  • We work to protect and improve watershed health.

  • We plan, design and construct system improvements.

  • We work with industries to pretreat wastewater and manage stormwater onsite.

  • Learn more about the stormwater discount program.

  • We are committed to providing meaningful access.

Our Mission Statement

Environmental Services protects public health, water quality and the environment. We provide sewage and stormwater collection and treatment services to accommodate Portland's current and future needs. We protect the quality of surface and ground waters and conduct activities that plan and promote healthy ecosystems in our watersheds.

City Green Blog View all »

  1. Dec 6

    This Saturday December 9th, join the Johnson Creek Watershed Council for a restoration planting at Johnson Creek Park!

    Team up with the Council and Portland Parks to plant native shrubs and trees along the banks of Crystal Springs before winter arrives

  2. Nov 7

    Free Grant Writing Workshops for the Community Watershed Stewardship Program (CWSP)

    Staff from Environmental Services will be available to help interested community members develop competitive proposals.

  3. Nov 3

    One Hundred Years Ago Along The Columbia River

    A photo from 1917 reflects how much has changed in Portland's most urbanized watershed

  4. Oct 19

    Make new friends, but keep the old… Then get them all together to work on a bioswale!

    Want to learn about bioswales and get involved, but don’t know how? Read on for an exciting opportunity.

  5. Oct 4

    Helping Salmon in Our City: Culvert Removal and Replacement in Portland

    Salmon season is upon us, and it’s a great time to look at some of the projects Environmental Services has been working on to improve salmon habitat.

Treatment Plant Tour

The Columbia Boulevard Wastewater Treatment Plant is Oregon's largest water reclamation facility. Come and see firsthand how the plant works. Book individual or group tours at For more information, call 503-823-2400.