St Charles County, Missouri — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in St Charles County, MO?
In St Charles County, Missouri, public U.S. EPA records track 636 regulated facilities (#24 of 190 in Missouri), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 53 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).
St 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📊 St Charles County, MO Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in St Charles County
ZIP Codes in St Charles County
Top EPA Regulated Facilities in St 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 Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • WENTZVILLE, MO (ZIP 63385 Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ST CHARLES, MO (ZIP 63301 Sector) | MODERATE (38/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SAINT PETERS, MO (ZIP 63376 Sector) | MODERATE (36/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SAINT CHARLES, MO (ZIP 63303 Sector) | MODERATE (35/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • WENTZVILLE, MO (ZIP 63385 Sector) | MODERATE (34/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • O FALLON, MO (ZIP 63366 Sector) | MODERATE (33/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • O FALLON, MO (ZIP 63366 Sector) | MODERATE (33/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WENTZVILLE, MO (ZIP 63385 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| DIAGRAPH MARKING & CODING ITW FREE PREVIEW (LOW RISK) | 1 RESEARCH PARK DR DOCK 4, ST CHARLES, MO 63304 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| FEDEX FREIGHT INC STL FREE PREVIEW (LOW RISK) | 3951 NEW TOWN BLVD, ST CHARLES, MO 63301 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| GE WATER & PROCESS TECHNOLOGIES - ST. PETERS FREE PREVIEW (LOW RISK) | 2 ARROWHEAD INDUSTRIAL BLVD, ST. PETERS, MO 63376 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| UNION PACIFIC RAILROAD CO FREE PREVIEW (LOW RISK) | 2100 2110 N MAIN ST, ST CHARLES, MO 63301 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — St Charles County, Missouri Environmental Due Diligence
How many EPA-regulated environmental sites are in St Charles County, Missouri?
Public U.S. EPA records track 636 regulated facilities in St Charles County, Missouri (ranking #24 of 190 jurisdictions in MO). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 6 (0.9%) have active non-compliance quarters.
Which ZIP codes and cities in St Charles County have the highest regulated facility density?
Within St Charles County, the highest concentrations of EPA-tracked facilities are located in ZIP 63346 (Flint Hill, 6 sites), ZIP 63375 (St Peters, 1 sites), spanning municipal corridors including Weldon Springs (5 sites), Saint Peters, Township Of (4 sites), Flint Hill (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in St Charles County?
Across St Charles County, 583 facilities (91.7% 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 St Charles County, MO?
Geologic indoor air screening places St 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 St Charles County, MO?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 53 Clean Water Act NPDES permits, and 4 impaired water dischargers in St Charles County, alongside 14 historical FEMA federal disaster declarations (14 flood/storm events).
Does St Charles County, MO have expansive clay soil or foundation risk?
USDA regional soil engineering screening for St 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.