Twain Harte, California Water Quality Report
Water quality data for 5 water systems serving 3,500 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
4H
Jul 2, 2025
2E
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
Resolved Violations (61)
3D
Apr 1, 2025 — Apr 30, 2025
3D
Apr 1, 2025 — Apr 30, 2025
3D
Apr 1, 2025 — May 31, 2025
3D
Apr 1, 2025 — May 31, 2025
3D
Apr 1, 2025 — Apr 30, 2025
+ 56 more resolved violations
Frequently Asked Questions
Is Twain Harte tap water safe to drink?
Twain Harte'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 Twain Harte tap water?
0 contaminants have been detected in Twain Harte's water supply across 5 water systems. See the full contaminant table above for details.
How can I improve my water quality in Twain Harte?
Install a water filter rated for the specific contaminants found in Twain Harte's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Twain Harte have any water quality violations?
Yes, Twain Harte currently has 5 active violations. See the violations section above for details.