LIBERTY UTILITIES OAKBRIER ESTATES

AURORA, MO · ~143 people served

Check your exact address → AURORA overview

100

Excellent

PurityRadar safety score

PWSID

MO4036026

State

Missouri

City

AURORA

Population served

143

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 Sep 2020. Official EPA record →

Other · EPA contaminant 7000 began Jul 2019 Resolved

Monitoring & reporting · Total coliform began Jun 1995 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 1995 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 1993 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1993 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 1993 Resolved

Recent enforcement actions

State action · SOX Sep 2020
State action · SOX May 2011
State action · SIA Aug 1995
State action · SIE Aug 1995
State action · SIF Jul 1995
State action · SIE Jun 1995
State action · SFJ Jun 1995
State action · SFK Jun 1994

This profile is built from EPA public records for system MO4036026 — 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.