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Water system · PWSID WI1280107

JOHNSON CREEK WATERWORKS

JOHNSON CREEK, WI · ~3,318 people served

Check your exact address → JOHNSON CREEK overview
100
Excellent
PurityRadar safety score

PWSID

WI1280107

State

Wisconsin

City

JOHNSON CREEK

Population served

3,318

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

40

Violations on record

2

Unaddressed

7

Health-based

90

Enforcement actions

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

Other · EPA contaminant 7500 began Dec 2024 Unaddressed
Other · EPA contaminant 7500 began Oct 2024 Unaddressed
Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring & reporting · Combined radium-226/228 began Oct 2022 Resolved
Monitoring & reporting · Combined radium-226/228 began Jul 2022 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2022 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Other · EPA contaminant 7500 began Nov 2020 Resolved

Recent enforcement actions

  • State action · SIF Aug 2025
  • State action · SOX Aug 2025
  • State action · SIF Aug 2025
  • State action · SIF Aug 2025
  • State action · SOX Aug 2025
  • State action · SOX Aug 2025
  • State action · SOX Aug 2025
  • State action · SIF Aug 2025

This profile is built from EPA public records for system WI1280107 — 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.