Colusa, California Water Quality Report
Water quality data for 2 water systems serving 6,487 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 41.9 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 419% | Above guideline |
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Compliance & Violations
Active Violations (5)
4G
Oct 17, 2024
2E
Oct 17, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (65)
3A
Mar 1, 2022 — Mar 31, 2022
3A
Mar 1, 2022 — Mar 31, 2022
3A
Jan 1, 2022 — Mar 31, 2022
3A
Jan 1, 2022 — Mar 31, 2022
3A
Sep 1, 2016 — Sep 30, 2016
+ 60 more resolved violations
Frequently Asked Questions
Is Colusa tap water safe to drink?
Colusa'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 Colusa tap water?
1 contaminants have been detected in Colusa's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Colusa?
Install a water filter rated for the specific contaminants found in Colusa's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Colusa have any water quality violations?
Yes, Colusa currently has 5 active violations. See the violations section above for details.