Portland, Maine Water Quality Report
Water quality data for 14 water systems serving 137,052 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
34
Aug 18, 2023
34
Aug 18, 2023
34
Aug 18, 2023
71
Jul 1, 2021
71
Jul 1, 2021
Resolved Violations (495)
66
Dec 30, 2024
66
Dec 30, 2024
66
Dec 30, 2024
66
Dec 30, 2024
66
Dec 30, 2024
+ 490 more resolved violations
Frequently Asked Questions
Is Portland tap water safe to drink?
Portland's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Portland tap water?
0 contaminants have been detected in Portland's water supply across 14 water systems. See the full contaminant table above for details.
How can I improve my water quality in Portland?
Install a water filter rated for the specific contaminants found in Portland's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Portland have any water quality violations?
Yes, Portland currently has 58 active violations. See the violations section above for details.