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Water system · PWSID CT0690011

CTWC - CRYSTAL SYSTEM

CLINTON, CT · ~6,378 people served

Check your exact address → CLINTON overview
42
Action needed
PurityRadar safety score

PWSID

CT0690011

State

Connecticut

City

CLINTON

Population served

6,378

Primary source

Groundwater

Score history

▼ 58 points — the score moved from 100 to 42 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 42

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

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Apr 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

6.8 ppt

limit 4 ppt

Above EPA limit · 1.7×

PFOA

Perfluorooctanoic acid

5.5 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFHxS

Perfluorohexanesulfonic acid

4 ppt

limit 10 ppt

Below EPA limit

PFBS

3.3 ppt

limit —

No federal limit

Violations & enforcement

119

Violations on record

0

Unaddressed

4

Health-based

42

Enforcement actions

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

Other · EPA contaminant 7500 began Apr 2018 Resolved
Other · EPA contaminant 7500 began Apr 2018 Resolved
Other · EPA contaminant 7500 began Apr 2018 Resolved
Other · EPA contaminant 7500 began Apr 2018 Resolved
Monitoring & reporting · Uranium began Jan 2015 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2015 Resolved
Monitoring & reporting · Beta/photon emitters began Jan 2015 Resolved
Monitoring & reporting · EPA contaminant 4101 began Jan 2015 Resolved
Monitoring & reporting · Gross alpha began Jan 2015 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jan 2014 Resolved

Recent enforcement actions

  • State action · SOX Mar 2019
  • State action · SIF Apr 2018
  • State action · SIF Apr 2018
  • State action · SIF Apr 2018
  • State action · SIF Apr 2018
  • State action · SOX Apr 2018
  • State action · SOX Apr 2018
  • State action · SOX Apr 2018

This profile is built from EPA public records for system CT0690011 — 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.