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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, 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 manages Portland's wastewater and stormwater infrastructure to protect public health and the environment.

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.


  • RT @PDXParksandRec: Hike, explore, and much more! Portland Parks & Recreation’s Environmental Education team has ideas for hikes, activitie… 16 hours ago
  • RT @NWSPortland: Fourth wettest first twelve days of January on record for the Portland Airport with 5.45” of rain from Jan 1-12, 2021. #or1 day ago
  • Updated CSO Advisory: Overflows are rare but can occur during extreme weather. Last night’s overflow to the Willame… 1 day ago