Sunnyvale, California Water Quality Report
Water quality data for 1 water system serving 157,566 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 (141)
41
Mar 1, 2015 — Mar 31, 2015
41
Mar 1, 2015 — Mar 31, 2015
03
Jan 1, 2015 — Dec 31, 2023
03
Jan 1, 2015 — Dec 31, 2023
03
Jan 1, 2015 — Dec 31, 2023
+ 136 more resolved violations
Frequently Asked Questions
Is Sunnyvale tap water safe to drink?
Sunnyvale'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 Sunnyvale tap water?
0 contaminants have been detected in Sunnyvale's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Sunnyvale?
Install a water filter rated for the specific contaminants found in Sunnyvale's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Sunnyvale have any water quality violations?
Yes, Sunnyvale currently has 4 active violations. See the violations section above for details.