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Water system · PWSID WI1130237

MARSHALL WATERWORKS

MARSHALL, WI · ~3,862 people served

Check your exact address → MARSHALL overview
100
Excellent
PurityRadar safety score

PWSID

WI1130237

State

Wisconsin

City

MARSHALL

Population served

3,862

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

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

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

12

Violations on record

0

Unaddressed

3

Health-based

37

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2018. Official EPA record →

Max contaminant level (MCL) · Uranium health-based began Oct 2017 Resolved
Other · EPA contaminant 7500 began Mar 2015 Resolved
Other · EPA contaminant 7500 began Mar 2015 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2014 Resolved
Monitoring & reporting · Nitrate began Jan 1994 Resolved
Monitoring & reporting · Nitrate began Jan 1994 Resolved
Monitoring & reporting · Gross alpha began Jan 1994 Resolved
Monitoring & reporting · Uranium began Jan 1994 Resolved
Monitoring & reporting · EPA contaminant 4020 began Jan 1994 Resolved
Monitoring & reporting · EPA contaminant 4030 began Jan 1994 Resolved
Monitoring & reporting · Total coliform began Dec 1993 Resolved

Recent enforcement actions

  • State action · SOX Jun 2018
  • State action · SFL May 2018
  • State action · SIB Mar 2018
  • State action · SFJ Mar 2018
  • State action · SIF Feb 2018
  • State action · SIE Feb 2018
  • State action · SOX Jan 2018
  • State action · SOX Jan 2018

This profile is built from EPA public records for system WI1130237 — 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.