Rainier, Oregon Water Quality Report
Water quality data for 7 water systems serving 2,616 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (6)
2A
Aug 23, 2025
75
May 30, 2024
48
Mar 14, 2024
76
Nov 23, 2023
34
Jul 15, 2017
34
Nov 1, 2010
Resolved Violations (494)
31
Sep 1, 2025 — Sep 30, 2025
71
Jul 1, 2025
3A
Jul 1, 2025 — Jul 31, 2025
31
Jun 1, 2025 — Jun 30, 2025
75
Apr 10, 2025
+ 489 more resolved violations
Frequently Asked Questions
Is Rainier tap water safe to drink?
Rainier'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 Rainier tap water?
0 contaminants have been detected in Rainier's water supply across 7 water systems. See the full contaminant table above for details.
How can I improve my water quality in Rainier?
Install a water filter rated for the specific contaminants found in Rainier's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Rainier have any water quality violations?
Yes, Rainier currently has 44 active violations. See the violations section above for details.