Stillwater, Minnesota Water Quality Report
Water quality data for 8 water systems serving 21,148 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 10.9 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 109% | Above guideline |
| PFBA | 0.118 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.007 | 0.010 ug/L | 0.001 ug/L(EWG) | 72% | Within limit |
| PFOA | 0.005 | 0.004 ug/L | 0.090 ug/L(EWG) | 130% | Above limit |
| PFOS | 0.008 | 0.004 ug/L | 0.300 ug/L(EWG) | 203% | Above limit |
| PFPeA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
Get a Free Water Quality Consultation
Connect with a certified water treatment professional in Stillwater, Minnesota.
Get Water Quality Alerts
Be the first to know when water quality changes in Stillwater.
Compliance & Violations
Active Violations (10)
52
Oct 1, 2025
52
Oct 1, 2025
52
Oct 1, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (126)
4H
Jul 2, 2025
4H
Jul 2, 2025
3A
Apr 1, 2025 — Jun 30, 2025
3A
Apr 1, 2025 — Jun 30, 2025
3A
Apr 1, 2025 — Jun 30, 2025
+ 121 more resolved violations
Frequently Asked Questions
Is Stillwater tap water safe to drink?
Stillwater's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Stillwater tap water?
6 contaminants have been detected in Stillwater's water supply across 8 water systems. See the full contaminant table above for details.
How can I improve my water quality in Stillwater?
Install a water filter rated for the specific contaminants found in Stillwater's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Stillwater have any water quality violations?
Yes, Stillwater currently has 10 active violations. See the violations section above for details.