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Water system · PWSID CT0960011

AQUARION-NEW MILFORD REGIONAL

SHELTON, CT · ~13,331 people served

Check your exact address → SHELTON overview
71
Good
PurityRadar safety score

PWSID

CT0960011

State

Connecticut

City

SHELTON

Population served

13,331

Primary source

Groundwater

Score history

▼ 29 points — the score moved from 100 to 71 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 71

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 May 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

5.2 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFOA

Perfluorooctanoic acid

4.9 ppt

limit 4 ppt

Above EPA limit · 1.2×

PFPeA

6.2 ppt

limit —

No federal limit

PFHxA

5.4 ppt

limit —

No federal limit

PFBS

4.3 ppt

limit —

No federal limit

Violations & enforcement

52

Violations on record

0

Unaddressed

2

Health-based

46

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2023. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2019 Resolved
Other · EPA contaminant 7500 began Jan 2019 Resolved
Other · EPA contaminant 7000 began Jul 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved
Other · EPA contaminant 7000 began Aug 2014 Resolved
Other · EPA contaminant 7000 began Jul 2006 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jan 2006 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 2006 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 2006 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2006 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 2006 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2006 Resolved

Recent enforcement actions

  • State action · SIE Sep 2023
  • State action · SIE Sep 2023
  • State action · SIF Aug 2023
  • State action · SIF Aug 2023
  • State action · SOX Jan 2020
  • State action · SOX Aug 2019
  • State action · SIF Aug 2019
  • State action · SIA Feb 2019

This profile is built from EPA public records for system CT0960011 — 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.