ST CHARLES PWSD 2 FORISTELL

O'FALLON, MO · ~550 people served

Check your exact address → O'FALLON overview

100

Excellent

PurityRadar safety score

PWSID

MO6010287

State

Missouri

City

O'FALLON

Population served

550

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 Jan 2016. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Unaddressed

Max contaminant level (MCL) · Total coliform health-based began Sep 2010 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2005 Resolved

Monitoring & reporting · Total coliform began Sep 2005 Resolved

Other · EPA contaminant 7000 began Jul 2001 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 1996 Resolved

Monitoring & reporting · Total coliform began Apr 1996 Resolved

Recent enforcement actions

State action · SIA Jan 2016
State action · SOX Jan 2014
State action · SOX Aug 2011
State action · SIF Oct 2010
State action · SIE Sep 2010
State action · SIA Sep 2010
State action · SOX Aug 2007
State action · SIF Nov 2005

This profile is built from EPA public records for system MO6010287 — 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.