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Water system · PWSID CT0864011

MONTVILLE WATER SUPPLY

UNCASVILLE, CT · ~1,300 people served

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

PWSID

CT0864011

State

Connecticut

City

UNCASVILLE

Population served

1,300

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

28

Violations on record

0

Unaddressed

3

Health-based

62

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2019. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2016 Resolved
Other · EPA contaminant 7500 began Oct 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2015 Resolved
Monitoring & reporting · EPA contaminant 0200 began Nov 2012 Resolved
Monitoring & reporting · Total coliform began Nov 2012 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2012 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2011 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2010 Resolved
Monitoring & reporting · EPA contaminant 0200 began Apr 2010 Resolved
Other · EPA contaminant 7000 began Aug 2009 Resolved

Recent enforcement actions

  • State action · SOX Dec 2019
  • State action · SIF Jun 2018
  • State action · SIE Jan 2018
  • State action · SIA Jan 2018
  • State action · SFL Mar 2017
  • State action · SOX Jun 2016
  • State action · SIF Mar 2016
  • State action · SIE Feb 2016

This profile is built from EPA public records for system CT0864011 — 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.