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Water system · PWSID MA2032000

BLACKSTONE WATER DEPARTMENT

81
Good
PurityRadar safety score

PWSID

MA2032000

State

Massachusetts

City

BLACKSTONE

Population served

9,868

Primary source

Groundwater

Score history

▼ 19 points — the score moved from 100 to 81 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 81

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 Oct 2025). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

5.7 ppt

limit 4 ppt

Above EPA limit · 1.4×

Violations & enforcement

40

Violations on record

0

Unaddressed

7

Health-based

56

Enforcement actions

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

Max contaminant level (MCL) · Total coliform health-based began Nov 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2009 Resolved
Monitoring & reporting · Total coliform began Nov 2009 Resolved
Other · EPA contaminant 7000 began Jul 2009 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2009 Resolved
Monitoring & reporting · Total coliform began Jan 2009 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2009 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2008 Resolved
Monitoring & reporting · EPA contaminant 2968 began Oct 2007 Resolved
Monitoring & reporting · EPA contaminant 2996 began Oct 2007 Resolved
Monitoring & reporting · EPA contaminant 2989 began Oct 2007 Resolved

Recent enforcement actions

  • State action · SFJ Nov 2025
  • State action · SFJ Apr 2022
  • State action · SO8 May 2016
  • State action · SFJ Nov 2013
  • State action · SOX Nov 2013
  • State action · SFJ Jul 2013
  • State action · SFL Jan 2013
  • State action · SOX Jan 2013

This profile is built from EPA public records for system MA2032000 — 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.