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Water system · PWSID WI6100327

GRANTON WATERWORKS

GRANTON, WI · ~349 people served

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

PWSID

WI6100327

State

Wisconsin

City

GRANTON

Population served

349

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

21

Violations on record

0

Unaddressed

5

Health-based

75

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2021. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2017 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2016 Resolved
Monitoring & reporting · Total coliform began Jan 2016 Resolved
Max contaminant level (MCL) · EPA contaminant 2946 health-based began Jul 2014 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2014 Resolved
Other · EPA contaminant 7500 began Mar 2011 Resolved
Monitoring & reporting · Total coliform began Feb 2011 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2011 Resolved
Monitoring & reporting · Total coliform began Feb 2010 Resolved

Recent enforcement actions

  • State action · SOX Aug 2021
  • State action · SOX Aug 2021
  • State action · SIF Mar 2021
  • State action · SIF Mar 2021
  • State action · SIE Sep 2020
  • State action · SIA Sep 2020
  • State action · SIE Sep 2020
  • State action · SIA Sep 2020

This profile is built from EPA public records for system WI6100327 — 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.