Duncan, Oklahoma Water Quality Report
Water quality data for 1 water system serving 23,000 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 14.2 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 142% | Above guideline |
| PFBA | 0.007 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHpA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFPeA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
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Compliance & Violations
Resolved Violations (500)
27
Nov 1, 2024 — Nov 30, 2024
3A
Nov 1, 2024 — Nov 30, 2024
27
Nov 1, 2024 — Nov 30, 2024
3A
Nov 1, 2024 — Nov 30, 2024
3A
Nov 1, 2024 — Nov 30, 2024
+ 495 more resolved violations
Frequently Asked Questions
Is Duncan tap water safe to drink?
Duncan's water meets all EPA maximum contaminant levels. However, 5 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Duncan tap water?
5 contaminants have been detected in Duncan's water supply across 1 water system. 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 7 active violations. See the violations section above for details.