THREE RIVERS M H COMMUNITY

SUDBURY, MA · ~63 people served

Check your exact address → SUDBURY overview

100

Excellent

PurityRadar safety score

PWSID

ME0008251

State

Massachusetts

City

SUDBURY

Population served

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 Jun 2025. Official EPA record →

Other · EPA contaminant 7500 began Jan 2025 Resolved

Other · EPA contaminant 7500 began Oct 2024 Resolved

Reporting · Lead & Copper Rule began Dec 2023 Resolved

Treatment technique · Lead & Copper Rule health-based began Nov 2023 Resolved

Monitoring & reporting · Total coliform began Apr 2006 Resolved

Monitoring & reporting · Total coliform began Apr 2003 Resolved

Monitoring & reporting · Nitrate began Jan 1995 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1991 Resolved

Recent enforcement actions

State action · SOX Jun 2025
State action · SOX Jun 2025
State action · SOX Jun 2025
State action · SFJ Apr 2025
State action · SFJ Jan 2025
State action · SFJ Jan 2025
State action · SFJ Jan 2025
State action · SOX Dec 2024

This profile is built from EPA public records for system ME0008251 — 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.