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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

More Contact Info

  • Portland's wastewater and stormwater management utility

  • working with industries to pretreat wastewater discharges and manage stormwater onsite

  • protecting and improving watershed health

  • operating and maintaining wastewater and stormwater collection and treatment facilities

  • planning, designing, constructing public sewer improvements

  • business opportunity program, required sewer connection, stormwater discounts

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. Oct 28

    Environmental Services is now certified Salmon-Safe!

    Five city bureaus joined Portland Parks & Recreation making the City of Portland the nation’s first municipality to receive the designation.

  2. Oct 3

    Life in the Floodplain is coming up on October 8

    Take advantage of the FREE resource fair this Saturday from 10 a.m. to 2 p.m.

  3. Sep 23

    2016 Portland Ecoroof Symposium is coming up October 3

    Register today for Portland's annual gathering of ecoroof researchers, designers and practitioners

  4. Sep 22

    Salvaging Fish in Balch Creek

    Environmental Services staff protect resident species during recent routine maintenance in along the creek in Forest Park

  5. Sep 13

    Two great opportunities to learn about Johnson Creek this week

    Join the Johnson Creek Watershed Council for a science talk and bike tour that focuses on the Southeast Portland watershed

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.