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Water system · PWSID WI1540116

OAKHILL WATERWORKS

EDGERTON, WI · ~130 people served

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

PWSID

WI1540116

State

Wisconsin

City

EDGERTON

Population served

130

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

38

Violations on record

0

Unaddressed

1

Health-based

43

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2015. Official EPA record →

Other · EPA contaminant 7000 began Jul 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2013 Resolved
Other · EPA contaminant 7000 began Oct 2010 Resolved
Other · EPA contaminant 7500 began Jul 2008 Resolved
Monitoring & reporting · Total coliform began Apr 2008 Resolved
Other · EPA contaminant 7000 began Oct 2007 Resolved
Monitoring & reporting · Total coliform began Apr 2007 Resolved
Other · EPA contaminant 7000 began Oct 2006 Resolved
Other · EPA contaminant 7000 began Jul 2002 Resolved
Monitoring & reporting · Nitrate began Jan 1998 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1998 Resolved
Monitoring & reporting · Gross alpha began Jan 1998 Resolved

Recent enforcement actions

  • State action · SIA Aug 2015
  • State action · SOX Jul 2015
  • State action · SOX Jan 2013
  • State action · SO6 Feb 2011
  • State action · SOX Nov 2010
  • State action · SIA Oct 2010
  • State action · SOX Jul 2008
  • State action · SIA Jul 2008

This profile is built from EPA public records for system WI1540116 — 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.