WEST GROTON WATER SUPPLY DISTRICT

GROTON, MA · ~1,853 people served

Check your exact address → GROTON overview

100

Excellent

PurityRadar safety score

PWSID

MA2115001

State

Massachusetts

City

GROTON

Population served

1,853

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 Apr 2020. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Nov 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2010 Resolved

Monitoring & reporting · EPA contaminant 2976 began Jul 1996 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jul 1996 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jul 1996 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jul 1996 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jul 1996 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jul 1996 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jul 1996 Resolved

Recent enforcement actions

State action · SOX Apr 2020
State action · SFL Mar 2020
State action · SOX Jan 2013
State action · SFL Jan 2013
State action · SOX Jul 2012
State action · SFL Jul 2012
State action · SOX Oct 2011
State action · SFL Oct 2011

This profile is built from EPA public records for system MA2115001 — 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.