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Water system · PWSID WI4050468

HOWARD WATERWORKS

GREEN BAY, WI · ~21,133 people served

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

PWSID

WI4050468

State

Wisconsin

City

GREEN BAY

Population served

21,133

Primary source

SWP

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

24

Violations on record

0

Unaddressed

16

Health-based

78

Enforcement actions

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

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Other · EPA contaminant 7500 began Oct 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Dec 2023 Resolved
Other · EPA contaminant 7500 began Feb 2019 Resolved
Monitoring · Lead & Copper Rule began Jan 2019 Resolved
Other · EPA contaminant 7000 began Oct 2011 Resolved
Other · EPA contaminant 7000 began Jul 2011 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved
Other · EPA contaminant 7500 began Dec 2005 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2005 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2001 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jan 2001 Resolved

Recent enforcement actions

  • State action · SOX Jun 2025
  • State action · SIF Jun 2025
  • State action · SOX May 2025
  • State action · SIF Jan 2024
  • State action · SIE Dec 2023
  • State action · SIA Dec 2023
  • State action · SOX Dec 2023
  • State action · SIF Jun 2020

This profile is built from EPA public records for system WI4050468 — 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.