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Water system · PWSID WI2683331

GENESEE LAKE SCHOOL SOUTH

OCONOMOWOC, WI · ~230 people served

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

PWSID

WI2683331

State

Wisconsin

City

OCONOMOWOC

Population served

230

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

11

Violations on record

1

Unaddressed

5

Health-based

42

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2014. Official EPA record →

Other · EPA contaminant 7500 began Oct 2012 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jun 2012 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2009 Resolved
Monitoring & reporting · Gross alpha began Oct 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2009 Resolved
Other · EPA contaminant 7500 began Apr 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2009 Resolved
Other · EPA contaminant 7500 began Mar 2009 Resolved
Other · EPA contaminant 7500 began Mar 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2009 Resolved

Recent enforcement actions

  • State action · SO8 Apr 2014
  • State action · SOX Jul 2013
  • State action · SIA Nov 2012
  • State action · SIE Nov 2012
  • State action · SOX Mar 2010
  • State action · SIF Feb 2010
  • State action · SFG Jan 2010
  • State action · SIE Jan 2010

This profile is built from EPA public records for system WI2683331 — 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.