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Water system · PWSID CT1390021

AQUARION-SUFFIELD

SHELTON, CT · ~595 people served

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

PWSID

CT1390021

State

Connecticut

City

SHELTON

Population served

595

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

54

Violations on record

1

Unaddressed

1

Health-based

39

Enforcement actions

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

Other · EPA contaminant 7500 began Oct 2015 Unaddressed
Monitoring & reporting · Nitrate began Jul 2019 Resolved
Other · EPA contaminant 7000 began Jul 2018 Resolved
Monitoring & reporting · Nitrate began Jan 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2009 Resolved
Other · EPA contaminant 7000 began Jul 2007 Resolved
Other · EPA contaminant 7000 began Aug 2005 Resolved
Other · EPA contaminant 7000 began Jul 2005 Resolved
Other · EPA contaminant 7000 began Aug 2004 Resolved
Other · EPA contaminant 7000 began Jul 2004 Resolved
Other · EPA contaminant 7500 began Mar 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2004 Resolved

Recent enforcement actions

  • State action · SOX Feb 2020
  • State action · SIA Jan 2020
  • State action · SIA Jan 2019
  • State action · SOX Jul 2018
  • State action · SIA Mar 2016
  • State action · SIE Sep 2015
  • State action · SIA Sep 2015
  • State action · SOX Jun 2015

This profile is built from EPA public records for system CT1390021 — 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.