Duncan, Arizona Water Quality Report
Water quality data for 3 water systems serving 872 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (4)
4B
Sep 1, 2025
75
Jul 2, 2025
71
Jul 1, 2025
75
Jan 2, 2025
Resolved Violations (496)
3A
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
03
Jul 1, 2025 — Sep 30, 2025
03
Apr 1, 2025 — Jun 30, 2025
03
Apr 1, 2025 — Jun 30, 2025
+ 491 more resolved violations
Frequently Asked Questions
Is Duncan tap water safe to drink?
Duncan'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 Duncan tap water?
0 contaminants have been detected in Duncan's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Duncan?
Install a water filter rated for the specific contaminants found in Duncan's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Duncan have any water quality violations?
Yes, Duncan currently has 54 active violations. See the violations section above for details.