Chico, California Water Quality Report
Water quality data for 34 water systems serving 24,875 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (8)
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
Resolved Violations (492)
41
Feb 1, 2025 — Feb 28, 2025
41
Feb 1, 2025 — Feb 28, 2025
01
Oct 1, 2024 — Dec 31, 2024
3A
Aug 1, 2024 — Aug 31, 2024
3A
Aug 1, 2024 — Aug 31, 2024
+ 487 more resolved violations
Frequently Asked Questions
Is Chico tap water safe to drink?
Chico's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Chico tap water?
0 contaminants have been detected in Chico's water supply across 34 water systems. See the full contaminant table above for details.
How can I improve my water quality in Chico?
Install a water filter rated for the specific contaminants found in Chico's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Chico have any water quality violations?
Yes, Chico currently has 53 active violations. See the violations section above for details.