OSHKOSH WATERWORKS

OSHKOSH, WI · ~63,000 people served

Check your exact address → OSHKOSH overview

100

Excellent

PurityRadar safety score

PWSID

WI4710457

State

Wisconsin

City

OSHKOSH

Population served

63,000

Primary source

Surface water

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · EPA contaminant 1011 began Jul 2023 Resolved

Monitoring & reporting · EPA contaminant 1011 began Jul 2018 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2014 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2014 Resolved

Monitoring & reporting · Lead & Copper Rule began Dec 1991 Resolved

Recent enforcement actions

State action · SIF Jun 2024
State action · SIA Nov 2023
State action · SIE Nov 2023
State action · SOX Oct 2023
State action · SIF Jun 2019
State action · SIE Dec 2018
State action · SIA Dec 2018
State action · SOX Aug 2018

This profile is built from EPA public records for system WI4710457 — 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.