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Water system · PWSID WI6090458

CORNELL WATERWORKS

CORNELL, WI · ~1,390 people served

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

PWSID

WI6090458

State

Wisconsin

City

CORNELL

Population served

1,390

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

10

Violations on record

0

Unaddressed

4

Health-based

36

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2024. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jun 2023 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2019 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2019 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2017 Resolved
Monitoring · Lead & Copper Rule began Sep 2016 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jun 2016 Resolved
Treatment technique · EPA contaminant 0700 health-based began Apr 2016 Resolved
Monitoring & reporting · Total coliform began Jan 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1994 Resolved

Recent enforcement actions

  • State action · SOX Aug 2024
  • State action · SIF Oct 2023
  • State action · SIA Oct 2023
  • State action · SIE Oct 2023
  • State action · SOX Sep 2020
  • State action · SIF May 2020
  • State action · SIA Oct 2019
  • State action · SIE Oct 2019

This profile is built from EPA public records for system WI6090458 — 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.