Groton, Connecticut Water Quality Report
Water quality data for 5 water systems serving 32,791 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (1)
72
Aug 10, 2025
Resolved Violations (499)
71
Jul 1, 2025
71
Jul 1, 2024
66
Mar 31, 2024
66
Sep 29, 2023
66
Sep 29, 2023
+ 494 more resolved violations
Frequently Asked Questions
Is Groton tap water safe to drink?
Groton'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 Groton tap water?
0 contaminants have been detected in Groton's water supply across 5 water systems. See the full contaminant table above for details.
How can I improve my water quality in Groton?
Install a water filter rated for the specific contaminants found in Groton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Groton have any water quality violations?
Yes, Groton currently has 15 active violations. See the violations section above for details.