Jefferson, Oregon Water Quality Report
Water quality data for 2 water systems serving 3,413 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (6)
71
Jul 1, 2025
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (203)
75
Apr 10, 2025
36
Mar 1, 2025 — Mar 31, 2025
36
Mar 1, 2025 — Mar 31, 2025
36
Mar 1, 2025 — Mar 31, 2025
2E
Oct 17, 2024
+ 198 more resolved violations
Frequently Asked Questions
Is Jefferson tap water safe to drink?
Jefferson'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 Jefferson tap water?
0 contaminants have been detected in Jefferson's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Jefferson?
Install a water filter rated for the specific contaminants found in Jefferson's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Jefferson have any water quality violations?
Yes, Jefferson currently has 6 active violations. See the violations section above for details.