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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. Mar 16

    Alien Plant Invader: Lesser celandine

    Watch for these yellow blooms starting this week.

  2. Mar 15

    Meet your neighbors, the lampreys

    The Johnson Creek Watershed Council kicked off Lamprey and Steelhead Community Science surveys in February

  3. Mar 8

    Jade Greening kicks off with tree planting at Harrison School: the start of a breathable, accessible, livable, and prosperous future

    During the next five years of the project, the Environmental Services Tree Program will work with Friends of Trees and other coalition and community partners to provide culturally relevant outreach and education and to plant at least 100 trees within the greater Jade District.

  4. Mar 7

    Slough 101: Free, Hands-On Workshop to Explore Our Columbia Slough Watershed

    The Slough 101 workshop will explore the unique character, challenges and opportunities of the Columbia Slough.

  5. Feb 27

    Get Ready for the Johnson Creek Watershed Council Watershed Wide Event

    The event will span ten locations and takes place Saturday, March 4th, from 9 a.m. to Noon

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.