Mercer Island, Washington Water Quality Report
Water quality data for 2 water systems serving 30,785 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (3)
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (12)
71
Jul 1, 2011
23
Jul 1, 2006 — Jul 31, 2006
51
Jan 1, 1999 — Jan 1, 2000
24
Dec 1, 1992 — Dec 31, 1992
24
Sep 1, 1992 — Sep 30, 1992
+ 7 more resolved violations
Frequently Asked Questions
Is Mercer Island tap water safe to drink?
Mercer Island'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 Mercer Island tap water?
0 contaminants have been detected in Mercer Island's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mercer Island?
Install a water filter rated for the specific contaminants found in Mercer Island's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mercer Island have any water quality violations?
Yes, Mercer Island currently has 3 active violations. See the violations section above for details.