Oakdale, California Water Quality Report
Water quality data for 22 water systems serving 27,683 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (25)
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
52
Oct 1, 2023
52
Oct 1, 2023
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (461)
4H
Jul 2, 2025
31
Jul 1, 2023 — Jul 31, 2023
31
Jul 1, 2023 — Jul 31, 2023
31
Jul 1, 2023 — Jul 31, 2023
31
Jul 1, 2023 — Jul 31, 2023
+ 456 more resolved violations
Frequently Asked Questions
Is Oakdale tap water safe to drink?
Oakdale'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 Oakdale tap water?
0 contaminants have been detected in Oakdale's water supply across 22 water systems. See the full contaminant table above for details.
How can I improve my water quality in Oakdale?
Install a water filter rated for the specific contaminants found in Oakdale's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Oakdale have any water quality violations?
Yes, Oakdale currently has 25 active violations. See the violations section above for details.