Portland, Oregon Water Quality Report
Comprehensive analysis of tap water safety based on EPA data
Last updated: January 2026
Is Portland's Water Safe to Drink?
Generally Safe. Portland's tap water meets EPA standards for drinking water quality. The water scored 90/100 in our analysis.
Contaminants Found in Portland's Water
1 contaminants tested • Data from EPA SDWIS database
| Contaminant | Level Detected | EPA Limit | % of Limit | Status |
|---|---|---|---|---|
Lead | 0.0049 mg/L | 0.015 mg/L | 32.6% | Safe |
Compliance Violations
Past EPA violations recorded for Portland's water system
other
Contaminant 8000 - 7/1/2022
Resolvedother
Contaminant 0800 - 12/18/2017
About Portland's Water System
PORTLAND WATER BUREAU
- PWS ID:
- OR4100657
- Population Served:
- 666,200
- Water Source:
- surface
A90/100
Portland Water Quality Score
Based on EPA contaminant data and compliance records
99
Contaminants
79
Compliance
85
Infrastructure
Areas of Concern
- 1 unresolved violation(s)
Positive Findings
- Excellent overall water quality
- No violations in the past 3 years
- No health-based (MCL) violations
- All tested contaminants well below EPA limits
Protect Your Family's Water
Even with good water quality, many families choose to filter their water for extra peace of mind.
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Other Cities in Oregon
Compare water quality with nearby cities.
View all Oregon cities →Frequently Asked Questions
- Where does Portland's water come from?
- Portland primarily uses surface water sources.
- How often is Portland's water tested?
- Water utilities are required to test for contaminants regularly and report results to the EPA.
- Should I use a water filter in Portland?
- While the water meets EPA standards, many families choose filters for extra peace of mind.