Skip to Main Content View Text-Only

Portland Water Bureau

From forest to faucet, we deliver the best drinking water in the world.


1120 SW Fifth Ave, Suite 600, Portland, OR 97204

More Contact Info


The Portland Water Bureau provides several water quality reports to the public:2015 Water Quality Report

2015 Drinking Water Quality Report

Annual water quality report is made available to all customers each June. Contains results of detected regulated contaminants from calendar year 2014. Also has useful information about Portland's water system.

Also available in:

Chinese      Russian     Spanish       Vietnamese  

Past Drinking Water Quality Reports are available online.

Recent water quality analyses
Three times a year the Water Bureau produces the Triannual report with current water quality results.

Bull Run Source Water Assessment  
As required by the Safe Drinking Water Act, the Source Water Assessment identifies the potential contaminants of concern in the Bull Run water supply.  

Watershed Control Program Report for Water Year 2014
As required by the Safe Drinking Water Act, the Watershed Control Program Report Identifies current activities affecting water quality, and projections of future impacts or activities in the watershed.

Water Quality of Bull Run Compared to Groundwater 
As of Thursday June 11, the Portland Water Bureau is supplementing Bull Run water with approximately 8% groundwater from the Columbia South Shore Well Field.

Beginning Thursday, June 11, the Portland Water Bureau will begin using its groundwater wells in the Columbia South Shore Well Field to ensure adequate supplies of water to its customers while work on supply conduits from Bull Run is being completed. As part of system improvements, maintenance work is being conducted on the Water Bureau’s three supply conduits. Work to strengthen the interties between the conduits will soon begin on the last and largest conduit. This scheduled maintenance coincides with an increase in water demand. As a result, groundwater from the Columbia South Shore Well field will be used to continue supplying clean, safe and constant drinking water to customers. The groundwater system is estimated to contribute approximately 8% of supply for up to four weeks during the scheduled improvement work. While the work is being performed, the bureau will take the opportunity to perform its annual maintenance operation of the groundwater system, replacing the maintenance run scheduled for next month. Depending on location, it will take between one and eight days for groundwater to move through the distribution system and reach customers. For more information about Portland’s drinking water quality, call the Water Line at 503-823-7525.

Annual Water Quality Report

Annual consumer confidence report

Most Recent Water Quality Analyses

Triannual Water Quality Report

Request a Paper Copy

Online form to request a paper copy of the Annual Drinking Water Quality Report