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Water system · PWSID MA4266000

SHARON WATER DEPT

SHARON, MA · ~16,846 people served

Check your exact address → SHARON overview
31
Action needed
PurityRadar safety score

PWSID

MA4266000

State

Massachusetts

City

SHARON

Population served

16,846

Primary source

Groundwater

Score history

▼ 69 points — the score moved from 100 to 31 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 31

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

PFOS

Perfluorooctanesulfonic acid

7.6 ppt

limit 4 ppt

Above EPA limit · 1.9×

PFOA

Perfluorooctanoic acid

6.8 ppt

limit 4 ppt

Above EPA limit · 1.7×

PFHxS

Perfluorohexanesulfonic acid

12 ppt

limit 10 ppt

Above EPA limit · 1.2×

PFHxA

5.2 ppt

limit —

No federal limit

PFBS

4.7 ppt

limit —

No federal limit

PFPeA

3.3 ppt

limit —

No federal limit

Violations & enforcement

4

Violations on record

0

Unaddressed

3

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2016. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jul 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1995 Resolved

Recent enforcement actions

  • State action · SFJ Jun 2016
  • State action · SOX Dec 2011
  • State action · SFJ Oct 2011
  • State action · SFL Feb 2011
  • State action · SOX Feb 2011
  • State action · SFL Sep 2009
  • State action · SFL Oct 2008
  • State action · SOX Sep 1995

This profile is built from EPA public records for system MA4266000 — 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.