Saint Marys, Pennsylvania Water Quality Report
Water quality data for 1 water system serving 19,588 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (5)
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (478)
27
Jul 1, 2025 — Sep 30, 2025
27
Jul 1, 2025 — Sep 30, 2025
27
Jul 1, 2025 — Sep 30, 2025
27
Jul 1, 2025 — Sep 30, 2025
27
Apr 1, 2025 — Jun 30, 2025
+ 473 more resolved violations
Frequently Asked Questions
Is Saint Marys tap water safe to drink?
Saint Marys'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 Saint Marys tap water?
0 contaminants have been detected in Saint Marys's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Saint Marys?
Install a water filter rated for the specific contaminants found in Saint Marys's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Saint Marys have any water quality violations?
Yes, Saint Marys currently has 5 active violations. See the violations section above for details.