AQUARION-NEW HARTFORD

SHELTON, CT · ~1,872 people served

Check your exact address → SHELTON overview

100

Excellent

PurityRadar safety score

PWSID

CT0920011

State

Connecticut

City

SHELTON

Population served

1,872

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Sep 2025 Resolved

Monitoring & reporting · Lead & Copper Rule began Dec 2022 Resolved

Monitoring · Lead & Copper Rule began Jan 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Dec 2019 Resolved

Monitoring & reporting · Nitrate began Jan 2018 Resolved

Monitoring & reporting · Nitrite began Jan 2018 Resolved

Reporting · Lead & Copper Rule began Aug 2016 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2016 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2009 Resolved

Other · EPA contaminant 7000 began Jul 2009 Resolved

Monitoring & reporting · Total coliform began Dec 2007 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2007 Resolved

Recent enforcement actions

State action · SOX Nov 2025
State action · SIF Oct 2023
State action · SOX Feb 2023
State action · SIA Feb 2023
State action · SOX Oct 2022
State action · SIE Mar 2022
State action · SIA Mar 2022
State action · SOX Feb 2020

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 Jun 2024

0.188 · max 0.358 ppm · 2

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 CT0920011 — 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.