San Luis, Colorado Water Quality Report
Water quality data for 4 water systems serving 1,275 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (13)
75
Sep 8, 2025
75
Sep 8, 2025
75
Jun 6, 2025
75
Jun 6, 2025
75
Mar 8, 2025
75
Mar 8, 2025
66
Jan 1, 2025
66
Jan 1, 2025
66
Jan 1, 2025
75
Dec 8, 2024
75
Dec 8, 2024
75
Feb 10, 2023
75
Feb 10, 2023
Resolved Violations (487)
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
2E
Oct 17, 2024
4G
Oct 17, 2024
+ 482 more resolved violations
Frequently Asked Questions
Is San Luis tap water safe to drink?
San Luis'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 Luis tap water?
0 contaminants have been detected in San Luis's water supply across 4 water systems. See the full contaminant table above for details.
How can I improve my water quality in San Luis?
Install a water filter rated for the specific contaminants found in San Luis'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 Luis have any water quality violations?
Yes, San Luis currently has 24 active violations. See the violations section above for details.