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Water system · PWSID WI8260121

MONTREAL WATERWORKS

MONTREAL, WI · ~887 people served

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

PWSID

WI8260121

State

Wisconsin

City

MONTREAL

Population served

887

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

175

Violations on record

2

Unaddressed

10

Health-based

182

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2024. Official EPA record →

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Other · EPA contaminant 7500 began Oct 2011 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jun 2023 Resolved
Treatment technique · EPA contaminant 0400 health-based began May 2023 Resolved
Treatment technique · EPA contaminant 0700 health-based began May 2018 Resolved
Other · EPA contaminant 7500 began May 2018 Resolved
Treatment technique · EPA contaminant 0400 health-based began Apr 2016 Resolved
Other · EPA contaminant 7500 began Feb 2016 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2015 Resolved

Recent enforcement actions

  • State action · SOX Sep 2024
  • State action · SIF Dec 2023
  • State action · SIE Oct 2023
  • State action · SIA Oct 2023
  • State action · SIA May 2023
  • State action · SOX May 2023
  • State action · SIA Apr 2019
  • State action · SOX Nov 2018

This profile is built from EPA public records for system WI8260121 — 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.