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Water system · PWSID MA3330000

WESTFORD WATER DEPARTMENT

WESTFORD, MA · ~18,680 people served

Check your exact address → WESTFORD overview
79
Good
PurityRadar safety score

PWSID

MA3330000

State

Massachusetts

City

WESTFORD

Population served

18,680

Primary source

GU

Score history

▼ 21 points — the score moved from 100 to 79 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 79

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 2023). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

8.4 ppt

limit 4 ppt

Above EPA limit · 2.1×

PFOS

Perfluorooctanesulfonic acid

4.3 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFHxA

4 ppt

limit —

No federal limit

PFPeA

3.9 ppt

limit —

No federal limit

PFBS

3 ppt

limit —

No federal limit

Violations & enforcement

6

Violations on record

0

Unaddressed

4

Health-based

15

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Jun 2018 Addressed
Monitoring & reporting · Lead & Copper Rule began Jul 2015 Resolved
Treatment technique · EPA contaminant 0200 health-based began May 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1994 Resolved

Recent enforcement actions

  • State action · SFJ Nov 2025
  • State action · SFL Apr 2019
  • State action · SFJ Jun 2016
  • State action · SOX Jun 2016
  • State action · SOX May 2012
  • State action · SFL Apr 2012
  • State action · SFL Jun 2009
  • State action · SOX Jul 2006

This profile is built from EPA public records for system MA3330000 — 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.