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Water system · PWSID WI1140146

HORICON WATERWORKS

HORICON, WI · ~3,682 people served

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

PWSID

WI1140146

State

Wisconsin

City

HORICON

Population served

3,682

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

13

Violations on record

0

Unaddressed

8

Health-based

56

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2023. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Jan 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2018 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2009 Resolved
Monitoring & reporting · Total coliform began Sep 2008 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2008 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2001 Resolved

Recent enforcement actions

  • State action · SIF Jan 2023
  • State action · SIE Jan 2023
  • State action · SOX Jan 2023
  • State action · SOX Jan 2018
  • State action · SIA Jan 2018
  • State action · SIF Aug 2014
  • State action · SIE Jul 2014
  • State action · SIA Jul 2014

This profile is built from EPA public records for system WI1140146 — 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.