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

  • 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. Aug 18

    Third International Jade Night Market Event Takes Place August 20th and 27th

    Stop by the Environmental Services booth to learn about projects and programs working for clean rivers

  2. Aug 18

    Learn about our Local Watersheds at Multnomah Days

    The annual event takes place in Multnomah Village on Saturday, August 20th from 9am-4pm

  3. Aug 17

    Be Cool. Lend a Hand. Clean Up Johnson Creek.

    Join Johnson Creek Watershed Council, the Overland Park Coalition, and the Oregon Bhutanese Community Organization for one of the most challenging and rewarding community clean up events of the year.

  4. Aug 16

    Southwest Stephenson Street Roadside Swales

    The recent stormwater improvements in Southwest Portland improve water quality and enhance pedestrian safety

  5. Aug 3

    The 22nd Annual Columbia Slough Regatta is this Sunday, August 7th

    This free, family-friendly event is a great way to explore the nature of the Columbia Slough.

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.