Newcastle, Wyoming Water Quality Report
Water quality data for 8 water systems serving 4,907 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 18.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 180% | Above guideline |
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Compliance & Violations
Active Violations (10)
71
Jul 1, 2025
71
Jul 1, 2025
72
Oct 2, 2024
72
Oct 2, 2024
52
Oct 1, 2024
71
Jul 1, 2024
71
Jul 1, 2024
66
Dec 30, 2023
52
Oct 1, 2023
71
Jul 1, 2022
Resolved Violations (490)
45
Jul 7, 2024
3A
Feb 1, 2024 — Feb 29, 2024
3A
Dec 1, 2023 — Dec 31, 2023
52
Oct 1, 2023
3A
Sep 1, 2022 — Sep 30, 2022
+ 485 more resolved violations
Frequently Asked Questions
Is Newcastle tap water safe to drink?
Newcastle'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 Newcastle tap water?
1 contaminants have been detected in Newcastle's water supply across 8 water systems. See the full contaminant table above for details.
How can I improve my water quality in Newcastle?
Install a water filter rated for the specific contaminants found in Newcastle's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Newcastle have any water quality violations?
Yes, Newcastle currently has 14 active violations. See the violations section above for details.