CTWC - SHORELINE REGION-MASONS ISLAND

CLINTON, CT · ~445 people served

Check your exact address → CLINTON overview

100

Excellent

PurityRadar safety score

PWSID

CT1370051

State

Connecticut

City

CLINTON

Population served

445

Primary source

SWP

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 Jan 2022. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2021 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2017 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2017 Resolved

Monitoring & reporting · Total coliform began Dec 2014 Resolved

Monitoring & reporting · EPA contaminant 0200 began Dec 2014 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2014 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2006 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2005 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2005 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2004 Resolved

Recent enforcement actions

State action · SOX Jan 2022
State action · SIF Jan 2019
State action · SOX Mar 2018
State action · SIA Mar 2018
State action · SIE Mar 2018
State action · SIF May 2015
State action · SIF May 2015
State action · SIE Apr 2015

This profile is built from EPA public records for system CT1370051 — 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.