Redwood City, California Water Quality Report
Water quality data for 4 water systems serving 93,569 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (4)
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (138)
02
Jan 1, 2025 — Mar 31, 2025
02
Jan 1, 2025 — Mar 31, 2025
02
Jan 1, 2020 — Mar 31, 2020
02
Jan 1, 2020 — Mar 31, 2020
2A
Jun 1, 2019
+ 133 more resolved violations
Frequently Asked Questions
Is Redwood City tap water safe to drink?
Redwood City'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 Redwood City tap water?
0 contaminants have been detected in Redwood City's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in Redwood City?
Install a water filter rated for the specific contaminants found in Redwood City's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Redwood City have any water quality violations?
Yes, Redwood City currently has 4 active violations. See the violations section above for details.