Skip to Main Content View Text-Only

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

  • Find out water quality results—posted each week.

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

  • 100% Waste Methane Recovery. Learn more.

  • Planning Some River Recreation? Check the Recreation Index.

  • 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.

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. Aug 15

    Visit Environmental Services at Multnomah Days Sat. Aug 19

    The annual Multnomah Days takes place this Saturday August 19 from 9 am to 4 pm in Multnomah Village, SW 25th and Capital Highway

  2. Jul 27

    Don't miss the 23rd Annual Columbia Slough Regatta on August 6th

    Join the on-the-water festival and celebrate the Columbia Slough!

  3. Jul 21

    Summer Watering for Newly Planted Trees

    With long days and high temperatures, don’t forget to water newly planted street and yard trees.

  4. Jul 13

    Alameda Stairs: Healthy, Certified Backyard Habitat

    The neighborhood project is the first public space to achieve the designation from the Backyard Habitat Certification Program

  5. Jun 28

    Alien Plant Invader: Japanese Butterbur

    An update on successful efforts to fight this plant, and what you can do to help

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.