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Water system · PWSID MA4307000

WALPOLE WATER DEPT

WALPOLE, MA · ~24,070 people served

Check your exact address → WALPOLE overview
84
Good
PurityRadar safety score

PWSID

MA4307000

State

Massachusetts

City

WALPOLE

Population served

24,070

Primary source

Groundwater

Score history

▼ 16 points — the score moved from 100 to 84 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 84

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 Mar 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

4 ppt

limit 4 ppt

Near EPA limit

PFOS

Perfluorooctanesulfonic acid

4 ppt

limit 4 ppt

Near EPA limit

PFBA

16 ppt

limit —

No federal limit

PFPeA

12 ppt

limit —

No federal limit

PFHxA

7 ppt

limit —

No federal limit

PFHpA

3 ppt

limit —

No federal limit

Violations & enforcement

17

Violations on record

0

Unaddressed

4

Health-based

20

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2019. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Oct 2013 Resolved
Monitoring & reporting · EPA contaminant 1085 began Jul 2013 Resolved
Monitoring & reporting · Cyanide began Jul 2013 Resolved
Monitoring & reporting · Fluoride began Jul 2013 Resolved
Monitoring & reporting · Arsenic began Jul 2013 Resolved
Monitoring & reporting · Selenium began Jul 2013 Resolved
Monitoring & reporting · Antimony began Jul 2013 Resolved
Monitoring & reporting · Barium began Jul 2013 Resolved
Monitoring & reporting · Cadmium began Jul 2013 Resolved
Monitoring & reporting · Chromium (total) began Jul 2013 Resolved
Monitoring & reporting · Beryllium began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 1075 began Jul 2013 Resolved

Recent enforcement actions

  • State action · SFJ Sep 2019
  • State action · SOX Apr 2015
  • State action · SFJ Apr 2014
  • State action · SFJ Feb 2014
  • State action · SOX Feb 2014
  • State action · SFL Jun 2009
  • State action · SOX Jun 2009
  • State action · SFL Apr 2006

This profile is built from EPA public records for system MA4307000 — 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.