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Water system · PWSID MA4171000

MARSHFIELD WATER DEPARTMENT

MARSHFIELD, MA · ~34,000 people served

Check your exact address → MARSHFIELD overview
63
Fair
PurityRadar safety score

PWSID

MA4171000

State

Massachusetts

City

MARSHFIELD

Population served

34,000

Primary source

Groundwater

Score history

▼ 37 points — the score moved from 100 to 63 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 63

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

PFOA

Perfluorooctanoic acid

6.8 ppt

limit 4 ppt

Above EPA limit · 1.7×

PFOS

Perfluorooctanesulfonic acid

4.6 ppt

limit 4 ppt

Above EPA limit · 1.1×

Lithium

19,300 ppt

limit —

No federal limit

PFPeA

13 ppt

limit —

No federal limit

PFHxA

10 ppt

limit —

No federal limit

PFBA

5.7 ppt

limit —

No federal limit

PFBS

3.9 ppt

limit —

No federal limit

PFHpA

3 ppt

limit —

No federal limit

Violations & enforcement

35

Violations on record

0

Unaddressed

8

Health-based

35

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2022 Resolved
Reporting · Lead & Copper Rule began Apr 2022 Resolved
Reporting · Lead & Copper Rule began Mar 2022 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Aug 2019 Resolved
Other · EPA contaminant 7000 began Jul 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2012 Resolved
Monitoring & reporting · Total coliform began Dec 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2008 Resolved

Recent enforcement actions

  • State action · SOX Jan 2025
  • State action · SFO Jan 2025
  • State action · SOX Aug 2022
  • State action · SFL Aug 2022
  • State action · SFO Aug 2021
  • State action · SFJ Dec 2019
  • State action · SOX Sep 2019
  • State action · SFL Aug 2019

This profile is built from EPA public records for system MA4171000 — 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.