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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

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

2013 Drinking Water Quality Report cover2013 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 2012. Also has useful information about Portland's water system.

Also available in:

Chinese      Russian     Spanish       Vietnamese


The 2012 Drinking Water Quality Report is also available on line.


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 2013

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 

The Portland Water Bureau is now delivering 100% Bull Run water. 

This report contains the expected water quality of Portland's drinking water for 100% Bull Run, 100% Groundwater and the projected blend from the 2013 summer maintenance operation of the Columbia South Shore Well Field that ran from July 30 to August 8, 2013. The calculated blend was based on a 13% groundwater contribution, representing the maximum contribution to the system during the operation.



Triannual Water Quality Analysis - August, 2013

Detailed water quality monitoring report

Annual Water Quality Report

Annual consumer confidence report

Request a paper copy

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

Most Recent Water Quality Analyses

Triannual Water Quality Report

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