Home/ Directory/ WI/ GREEN LAKE WATERWORKS

Water system · PWSID WI4240217

GREEN LAKE WATERWORKS

GREEN LAKE, WI · ~1,002 people served

Check your exact address → GREEN LAKE overview
100
Excellent
PurityRadar safety score

PWSID

WI4240217

State

Wisconsin

City

GREEN LAKE

Population served

1,002

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

27

Violations on record

0

Unaddressed

4

Health-based

51

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2025. Official EPA record →

Other · EPA contaminant 7500 began Oct 2024 Resolved
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2024 Resolved
Other · EPA contaminant 7000 began Jul 2022 Resolved
Other · EPA contaminant 7000 began Jul 2022 Resolved
Monitoring & reporting · Nitrate began Jan 2020 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2013 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2012 Resolved
Other · EPA contaminant 7000 began Jul 2012 Resolved
Other · EPA contaminant 7500 began Jul 2006 Resolved
Other · EPA contaminant 7500 began Jul 2006 Resolved

Recent enforcement actions

  • EPA/federal action · EIA Jun 2025
  • State action · SOX May 2025
  • State action · SIF Apr 2025
  • State action · SOX Apr 2025
  • State action · SOX Jan 2024
  • State action · SIA Jan 2024
  • State action · SOX Oct 2022
  • State action · SOX Oct 2022

This profile is built from EPA public records for system WI4240217 — 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.