OAKHILL CORRECTIONAL INST

OREGON, WI · ~1,096 people served

Check your exact address → OREGON overview

100

Excellent

PurityRadar safety score

PWSID

WI1130250

State

Wisconsin

City

OREGON

Population served

1,096

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

Enforcement actions

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

Other · EPA contaminant 7500 began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Other · EPA contaminant 7000 began Jul 2024 Resolved

Monitoring & reporting · Nitrate began Apr 2019 Resolved

Monitoring & reporting · Total coliform began Nov 1994 Resolved

Recent enforcement actions

EPA/federal action · EIA Jun 2025
State action · SOX Nov 2024
State action · SOX Nov 2024
State action · SOX Nov 2024
State action · SOX Nov 2024
State action · SIA Aug 2024
State action · SIA Aug 2024
State action · SIF Aug 2019

This profile is built from EPA public records for system WI1130250 — 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.