Yankton, South Dakota Water Quality Report
Water quality data for 3 water systems serving 15,686 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 69.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 690% | Above guideline |
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Compliance & Violations
Active Violations (16)
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Resolved Violations (281)
12
Feb 1, 2025
12
Feb 1, 2025
12
Feb 1, 2025
3A
Aug 1, 2022 — Aug 31, 2022
3A
Aug 1, 2022 — Aug 31, 2022
+ 276 more resolved violations
Frequently Asked Questions
Is Yankton tap water safe to drink?
Yankton's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Yankton tap water?
1 contaminants have been detected in Yankton's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Yankton?
Install a water filter rated for the specific contaminants found in Yankton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Yankton have any water quality violations?
Yes, Yankton currently has 16 active violations. See the violations section above for details.