Water system · PWSID MO6024629
ST CHARLES COUNTY PWSD 2 WARREN
PWSID
MO6024629
State
Missouri
City
O'FALLON
Population served
1,192
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
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
1
Violations on record
0
Unaddressed
0
Health-based
15
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement May 1999. Official EPA record →
Recent enforcement actions
- State action · SOX May 1999
- State action · SIE Oct 1991
- State action · SIA Mar 1991
- State action · SIF Oct 1990
- State action · SIA Oct 1990
- State action · SIF Oct 1990
- State action · SIA Oct 1990
- State action · SIE Sep 1987
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Nitrate
3 stations · latest Sep 2024
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system MO6024629 — 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.