MALDEN WATER DIVISION (MWRA)

MALDEN, MA · ~66,263 people served

Check your exact address → MALDEN overview

100

Excellent

PurityRadar safety score

PWSID

MA3165000

State

Massachusetts

City

MALDEN

Population served

66,263

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 Feb 2023. Official EPA record →

Other · EPA contaminant 7000 began Jun 2022 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Jul 2019 Addressed

Monitoring & reporting · Lead & Copper Rule began Jan 2018 Addressed

Treatment technique · EPA contaminant 0400 health-based began Mar 2016 Resolved

Treatment technique · Lead & Copper Rule health-based began Jul 2005 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 1999 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 1997 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 1994 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 1993 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 1992 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 1992 Resolved

Recent enforcement actions

State action · SFL Feb 2023
State action · SFL Feb 2020
State action · SOX Jan 2020
State action · SFL Mar 2017
State action · SFO Jul 2016
State action · SOX Feb 2007
State action · SFL Sep 2006
State action · SFL Mar 2001

This profile is built from EPA public records for system MA3165000 — 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.