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Water system · PWSID MA3071000

DANVERS WATER DEPT.

MIDDLETON, MA · ~28,087 people served

Check your exact address → MIDDLETON overview
85
Excellent
PurityRadar safety score

PWSID

MA3071000

State

Massachusetts

City

MIDDLETON

Population served

28,087

Primary source

Surface water

Score history

▼ 15 points — the score moved from 100 to 85 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 85

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Dec 2023). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

5.2 ppt

limit 4 ppt

Above EPA limit · 1.3×

Violations & enforcement

13

Violations on record

0

Unaddressed

3

Health-based

18

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Addressed
Monitoring & reporting · Lead & Copper Rule began Jun 2015 Resolved
Monitoring & reporting · EPA contaminant 4020 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 4030 began Jan 2011 Resolved
Monitoring & reporting · Beta/photon emitters began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 4174 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 4102 began Jan 2011 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 4264 began Jan 2011 Resolved
Monitoring & reporting · Gross alpha began Jan 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1992 Resolved

Recent enforcement actions

  • State action · SFL Nov 2025
  • State action · SOX Jun 2016
  • State action · SFJ Jun 2016
  • State action · SIE Dec 2014
  • State action · SOX May 2011
  • State action · SFL May 2011
  • State action · SFL Sep 2010
  • State action · SFL Apr 2009

This profile is built from EPA public records for system MA3071000 — 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.