Mossyrock, Washington Water Quality Report
Water quality data for 4 water systems serving 2,386 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (144)
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
57
Apr 1, 2025
71
Jul 1, 2024
+ 139 more resolved violations
Frequently Asked Questions
Is Mossyrock tap water safe to drink?
Mossyrock'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 Mossyrock tap water?
0 contaminants have been detected in Mossyrock's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mossyrock?
Install a water filter rated for the specific contaminants found in Mossyrock's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mossyrock have any water quality violations?
Yes, Mossyrock currently has 5 active violations. See the violations section above for details.