1120 SW 5th Avenue, Suite 1000, Portland, OR 97204
The Columbia Boulevard Wastewater Treatment Plant is part of a sewage collection and treatment system that serves about 600,000 customers. The plant operates every day around the clock to manage, monitor and adjust the collection system and treatment process. Nearly 100 sewage pump stations and more than 2,300 miles of pipes convey wastewater to the facility 24 hours a day.
Portland's largest wastewater treatment facility
What happens when sewage reaches the plant
Natural, nutrient-rich by-products of wastewater treatment
Using renewable energy sources
The new building is home to the Wastewater Engineering and Wastewater Construction Management teams
Work is underway
How we got here
Answers to frequently asked questions
Receive odor notifications or report odors
A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server.
PortlandOregon.gov is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.