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Water system · PWSID 010109005

Mohegan Tribal Utility Authority

Uncasville, CT · ~31,961 people served

Check your exact address → Uncasville overview
100
Excellent
PurityRadar safety score

PWSID

010109005

State

Connecticut

City

Uncasville

Population served

31,961

Primary source

SWP

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

3

Violations on record

0

Unaddressed

1

Health-based

8

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2020. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2020 Resolved
Reporting · Lead & Copper Rule began Jan 2020 Resolved
Monitoring & reporting · Total coliform began Apr 2011 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Nov 2020
  • EPA/federal action · EIF Nov 2020
  • EPA/federal action · EIE Aug 2020
  • EPA/federal action · EOX May 2020
  • EPA/federal action · EOX Feb 2012
  • EPA/federal action · EIF Feb 2012
  • EPA/federal action · EIE Jul 2011
  • EPA/federal action · EIA Apr 2011

This profile is built from EPA public records for system 010109005 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.