Oregon Health Authority
Center for Health Protection
Drinking Water Services
800 NE Oregon St. Suite 640
Portland, OR 97232-2162
Public Water System Compliance Information
July 24, 2021
The PORTLAND WATER BUREAU in Multnomah County is classified as a "community" water supply and is identified on the Oregon Health Authority Drinking Water Services public water system inventory by Public Water System (PWS) Identification Number OR4100657. This classification is based on the system serving 186,863 residential connections and a population of 614,059 people.
Public water systems are subject to the requirements of Oregon Administrative Rules, Chapter 333 as administered by the Oregon Health Authority. The state rules are established as required by the federal Safe Drinking Water Act and Environmental Protection Agency.
For specific information regarding this water system, check Data Online at https://yourwater.oregon.gov/inventory.php?pwsno=00657 or contact:
PORTLAND WATER BUREAU OR4100657