SOUTHERN WISCONSIN CENTER

UNION GROVE, WI · ~950 people served

Check your exact address → UNION GROVE overview

100

Excellent

PurityRadar safety score

PWSID

WI2520199

State

Wisconsin

City

UNION GROVE

Population served

950

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

Violations on record

Unaddressed

Health-based

155

Enforcement actions

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

Monitoring · Lead & Copper Rule began Nov 2025 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved

Treatment technique · EPA contaminant 0400 health-based began May 2023 Resolved

Monitoring · Lead & Copper Rule began Feb 2023 Resolved

Other · EPA contaminant 7000 began Jul 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Feb 2021 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2020 Resolved

Other · EPA contaminant 7000 began Jul 2020 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2020 Resolved

Other · EPA contaminant 7000 began Jul 2019 Resolved

Recent enforcement actions

State action · SOX Dec 2025
State action · SOX Aug 2025
State action · SIF Jun 2025
State action · SIE Dec 2024
State action · SIA Dec 2024
State action · SIF Jun 2024
State action · SIA Aug 2023
State action · SOX Aug 2023

This profile is built from EPA public records for system WI2520199 — 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.