Mashantucket, Connecticut Water Quality Report
Water quality data for 2 water systems serving 17,600 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (8)
72
Aug 10, 2025
72
Aug 10, 2025
71
Jul 1, 2025
34
Oct 23, 2018
34
Oct 23, 2018
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (276)
71
Jul 1, 2025
66
Dec 30, 2024
66
Dec 30, 2024
71
Jul 1, 2022
66
Dec 30, 2021
+ 271 more resolved violations
Frequently Asked Questions
Is Mashantucket tap water safe to drink?
Mashantucket'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 Mashantucket tap water?
0 contaminants have been detected in Mashantucket's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mashantucket?
Install a water filter rated for the specific contaminants found in Mashantucket's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mashantucket have any water quality violations?
Yes, Mashantucket currently has 8 active violations. See the violations section above for details.