San Juan Capistrano, California Water Quality Report
Water quality data for 7 water systems serving 619 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
20
Jan 17, 2015
52
Jan 1, 2011
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (112)
3D
Apr 1, 2025 — Apr 30, 2025
3D
Apr 1, 2025 — Apr 30, 2025
27
Jan 1, 2022 — Dec 31, 2022
27
Jan 1, 2022 — Dec 31, 2022
27
Jan 1, 2022 — Dec 31, 2022
+ 107 more resolved violations
Frequently Asked Questions
Is San Juan Capistrano tap water safe to drink?
San Juan Capistrano'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 San Juan Capistrano tap water?
0 contaminants have been detected in San Juan Capistrano's water supply across 7 water systems. See the full contaminant table above for details.
How can I improve my water quality in San Juan Capistrano?
Install a water filter rated for the specific contaminants found in San Juan Capistrano's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does San Juan Capistrano have any water quality violations?
Yes, San Juan Capistrano currently has 5 active violations. See the violations section above for details.