Gillette, Wyoming Water Quality Report
Water quality data for 55 water systems serving 46,053 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 14.3 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 143% | Above guideline |
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Compliance & Violations
Active Violations (22)
34
Sep 17, 2025
2E
Oct 17, 2024
4G
Oct 17, 2024
5A
Aug 20, 2024
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Resolved Violations (545)
27
Sep 1, 2025 — Sep 30, 2025
34
Aug 28, 2025
27
Aug 1, 2025 — Aug 31, 2025
3A
Apr 1, 2025 — Apr 30, 2025
27
Feb 1, 2025 — Feb 28, 2025
+ 540 more resolved violations
Frequently Asked Questions
Is Gillette tap water safe to drink?
Gillette'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 Gillette tap water?
1 contaminants have been detected in Gillette's water supply across 55 water systems. See the full contaminant table above for details.
How can I improve my water quality in Gillette?
Install a water filter rated for the specific contaminants found in Gillette's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Gillette have any water quality violations?
Yes, Gillette currently has 116 active violations. See the violations section above for details.