Customer Service: 503-823-7770
GENERAL INFORMATION: 503-823-7404
Where Portland’s drinking water comes from and how the Portland Water Bureau treats your drinking water.
How the Portland Water Bureau samples and tests for bacterial contamination.
The flushing of water mains is part of the Water Bureau’s on-going water quality and system maintenance work.
Answers to common water quality questions.
Portland’s test results from over 11,000 water samples collected each year.
Information and resources to reduce exposure and hazards from lead in water.
Monitoring and maintenance of the drinking water distribution system to reduce risk of contamination.
Information about compounds that are not currently regulated.
Learn more about water quality concerns that may happen in the home and what you can do about them.