Defiance, Ohio Water Quality Report
Water quality data for 6 water systems serving 19,445 people.
Water Source
Detected Contaminants
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Compliance & Violations
Active Violations (7)
72
Dec 24, 2019
72
Dec 24, 2019
72
Sep 13, 2018
72
Sep 13, 2018
72
Sep 13, 2018
72
Sep 13, 2018
72
Sep 13, 2018
Resolved Violations (493)
72
Jul 31, 2024
72
Jul 31, 2024
72
Jul 31, 2024
72
Jul 31, 2024
02
Oct 1, 2022 — Dec 31, 2022
+ 488 more resolved violations
Frequently Asked Questions
Is Defiance tap water safe to drink?
Defiance's water meets all EPA maximum contaminant levels. However, 3 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Defiance tap water?
3 contaminants have been detected in Defiance's water supply across 6 water systems. See the full contaminant table above for details.
How can I improve my water quality in Defiance?
Install a water filter rated for the specific contaminants found in Defiance's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Defiance have any water quality violations?
Yes, Defiance currently has 29 active violations. See the violations section above for details.