Castro Valley, California Water Quality Report
Water quality data for 1 water system serving 50 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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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 (106)
03
Jan 1, 2014 — Dec 31, 2016
03
Jan 1, 2014 — Dec 31, 2016
03
Jan 1, 2014 — Dec 31, 2016
03
Jan 1, 2014 — Dec 31, 2016
03
Jan 1, 2014 — Dec 31, 2016
+ 101 more resolved violations
Frequently Asked Questions
Is Castro Valley tap water safe to drink?
Castro Valley'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 Castro Valley tap water?
0 contaminants have been detected in Castro Valley's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Castro Valley?
Install a water filter rated for the specific contaminants found in Castro Valley's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Castro Valley have any water quality violations?
Yes, Castro Valley currently has 5 active violations. See the violations section above for details.