Saint Charles County, Missouri — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Saint Charles County, MO?
In Saint Charles County, Missouri, public U.S. EPA records track 1,093 regulated facilities (#14 of 190 in Missouri), including 2 (0.2%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 775 Clean Water NPDES permits, 14 FEMA Federal Disaster Declarations (14 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Saint Charles County, MO 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Saint Charles County, MO Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Saint Charles County
ZIP Codes in Saint Charles County
Top EPA Regulated Facilities in Saint Charles County, MO
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • O FALLON, MO (ZIP 63366 Sector) | HIGH (70/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ST. CHARLES, MO (ZIP 63301 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • O'FALLON, MO (ZIP 63366 Sector) | MODERATE (41/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • O FALLON, MO (ZIP 63366 Sector) | MODERATE (41/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • PORTAGE DES SIOUX, MO (ZIP 63373 Sector) | MODERATE (40/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SAINT CHARLES, MO (ZIP 63301 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • NEW MELLE, MO (ZIP 63365 Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • AUGUSTA, MO (ZIP 63332 Sector) | MODERATE (39/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| WENTZVILLE CITY OF FREE PREVIEW (LOW RISK) | 200 EAST 4TH STREET, WENTZVILLE, MO 63385 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| O'FALLON LUMBER COMPANY FREE PREVIEW (LOW RISK) | 126 W ELM, O'FALLON, MO 63366 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| CRAFTSMEN INDUSTRIES FREE PREVIEW (LOW RISK) | 3101 ELM POINT INDUSTRIAL DR, SAINT CHARLES, MO 63301 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| R.K. STRATMAN FREE PREVIEW (LOW RISK) | 680-B PARR RD, WENTZVILLE, MO 63385 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Saint Charles County, Missouri Environmental Due Diligence
How many EPA-regulated environmental sites are in Saint Charles County, Missouri?
Public U.S. EPA records track 1,093 regulated facilities in Saint Charles County, Missouri (ranking #14 of 190 jurisdictions in MO). Of those, 2 (0.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 13 (1.2%) have active non-compliance quarters.
Which ZIP codes and cities in Saint Charles County have the highest regulated facility density?
Within Saint Charles County, the highest concentrations of EPA-tracked facilities are located in ZIP 63303 (St Charles, 208 sites), ZIP 63332 (Augusta, 30 sites), ZIP 63365 (New Melle, 20 sites), spanning municipal corridors including Saint Charles (250 sites), Lake St. Louis (83 sites), Augusta (28 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Saint Charles County?
Across Saint Charles County, 267 facilities (24.4% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Saint Charles County, MO?
Geologic indoor air screening places Saint Charles County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Saint Charles County, MO?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 775 Clean Water Act NPDES permits, and 72 impaired water dischargers in Saint Charles County, alongside 14 historical FEMA federal disaster declarations (14 flood/storm events).
Does Saint Charles County, MO have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Saint Charles County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.