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Water system · PWSID CT1410011

CTWC - THOMPSON SYSTEM

CLINTON, CT · ~1,070 people served

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

PWSID

CT1410011

State

Connecticut

City

CLINTON

Population served

1,070

Primary source

Groundwater

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

34

Violations on record

0

Unaddressed

1

Health-based

16

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2016. Official EPA record →

Monitoring & reporting · EPA contaminant 2037 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2039 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2005 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2010 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2015 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2020 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2031 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2032 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2034 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2035 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2036 began Apr 2015 Resolved
Monitoring & reporting · EPA contaminant 2040 began Apr 2015 Resolved

Recent enforcement actions

  • State action · SIF Sep 2016
  • State action · SIA Sep 2016
  • State action · SIE Sep 2016
  • State action · SOX Oct 2015
  • State action · SIA Sep 2015
  • State action · SOX Jun 2004
  • State action · SOX Mar 1995
  • State action · SIF Mar 1995

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Aug 2023

0.519 · max 2.14 mg/l as N · 90

Manganese

1 station · latest Sep 2023

38.4 · max 95.8 ug/l · 31

Copper

1 station · latest Sep 2023

1.2 · max 1.9 ug/l · 30

Fluoride

1 station · latest Sep 2023

0.06 · max 0.07 mg/l · 30

Lead

1 station · latest Sep 2023

0.325 · max 0.769 ug/l · 30

Uranium

1 station · latest Sep 2023

0.0745 · max 0.194 ug/l · 30

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CT1410011 — 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.