What's in Mashantucket Pequot Water System's water?
Mashantucket Pequot Water System has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 22,171, over 119 connections.
Mashantucket Pequot Water System's record against the rest of the country
Mashantucket Pequot Water System has 47 violations on record in total, 7 of thems health-based - ranking it 2,614th of 12,903 systems by violation count, the 80th percentile nationally.
How Mashantucket Pequot Water System compares within CT
Among the 73 CT systems in this dataset, the average is 2.6 health-based violations - Mashantucket Pequot Water System's 7 is above that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for Mashantucket Pequot Water System is from 2025-01-07 (health-based: 2018-01-10). Last reported to EPA: 06/29/2026.
What kind of problem, specifically
Mashantucket Pequot Water System's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Mashantucket Pequot Water System's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and Mashantucket Pequot Water System's customers' taps is household plumbing, invisible to a system-level record ranked 2,614th of 12,903 by violation count. The guide to what this data misses covers that gap.