Prineville, Oregon Water Quality Report
Water quality data for 17 water systems serving 13,132 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 20.8 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 208% | Above guideline |
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Compliance & Violations
Active Violations (11)
34
Aug 19, 2025
71
Jul 1, 2025
71
Jul 1, 2025
75
Apr 10, 2025
2E
Oct 17, 2024
34
Aug 26, 2024
34
Jul 29, 2024
34
Jul 2, 2023
34
Dec 3, 2022
34
Aug 15, 2021
72
Oct 19, 2004
Resolved Violations (489)
3A
Aug 1, 2025 — Aug 31, 2025
1A
Jul 1, 2025 — Jul 31, 2025
71
Jul 1, 2025
1A
Jul 1, 2025 — Jul 31, 2025
71
Jul 1, 2025
+ 484 more resolved violations
Frequently Asked Questions
Is Prineville tap water safe to drink?
Prineville'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 Prineville tap water?
1 contaminants have been detected in Prineville's water supply across 17 water systems. See the full contaminant table above for details.
How can I improve my water quality in Prineville?
Install a water filter rated for the specific contaminants found in Prineville's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Prineville have any water quality violations?
Yes, Prineville currently has 69 active violations. See the violations section above for details.