MONSON WATER AND SEWER DEPT

MONSON, MA · ~4,212 people served

Check your exact address → MONSON overview

100

Excellent

PurityRadar safety score

PWSID

MA1191000

State

Massachusetts

City

MONSON

Population served

4,212

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 Oct 2010. Official EPA record →

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

Recent enforcement actions

State action · SOX Oct 2010
State action · SFL Sep 2010
State action · SOX Mar 2009
State action · SFL Jan 2005
State action · SFL Feb 2004
State action · SFL May 2000
State action · SFH Mar 2000
State action · SFL Mar 1996

This profile is built from EPA public records for system MA1191000 — 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.