Skip to Main Content View Text-Only

The City of Portland, Oregon

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 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 @NWSPortland: When you look at the forecast for the start of the Memorial Day weekend, remember that Memorial Day is about remembering t… 21 hours ago
  • Want to dip your toes in the Willamette River this Memorial Day weekend? Our summer-long testing program is baaaa… 1 day ago
  • RT @FriendsofTrees: Plans for the long wknd? Bike rides, hanging by the river... 🌲WATERING!? Young 🌳 need 15 gals of 🚿 p/ week for the 1st… 1 day ago
  • Update: Portland CIty Council unanimously 👍👍👍👍👍 approves new fund in an ordinance introduced by @tedwheeler and… 3 days ago