St. Charles County, Louisiana — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in St. Charles County, LA?
In St. Charles County, Louisiana, public U.S. EPA records track 43 regulated facilities (#98 of 137 in Louisiana), including 4 (9.3%) High-Risk sites and $1,465,548 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 20 Clean Water NPDES permits, 11 FEMA Federal Disaster Declarations (8 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
St. Charles County, LA 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, LA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in St. Charles County
ZIP Codes in St. Charles County
Top EPA Regulated Facilities in St. Charles County, LA
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 • NORCO, LA (ZIP 70079 Sector) | HIGH (84/100) | Violation Identified (5 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • NORCO, LA (ZIP 70079 Sector) | MODERATE (48/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • NORCO, LA (ZIP 70079 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • NORCO, LA (ZIP 70079 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • HAHNVILLE, LA (ZIP 70057 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • BOUTTE, LA (ZIP 70039 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • NORCO, LA (ZIP 70079 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • HAHNVILLE, LA (ZIP 70057 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| LA DOTD FREE PREVIEW (LOW RISK) | US 61, NORCO, LA 70000 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| ST CHARLES PAR COUNCIL-DEST FREE PREVIEW (LOW RISK) | 289 JONATHAN STREET, DESTREHAN, LA 70047 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| INTERTEK USA FREE PREVIEW (LOW RISK) | 149 PINTAIL ST, SAINT ROSE, LA 70087 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| DESTREHAN POTW HAHNVILLE POTW/ LULING POND FREE PREVIEW (LOW RISK) | 628 HWY 3160, HAHNVILLE, LA 70057 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — St. Charles County, Louisiana Environmental Due Diligence
How many EPA-regulated environmental sites are in St. Charles Parish County, Louisiana?
Public U.S. EPA records track 43 regulated facilities in St. Charles Parish County, Louisiana (ranking #98 of 137 jurisdictions in LA). Of those, 4 (9.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (2.3%) have active non-compliance quarters.
Which ZIP codes and cities in St. Charles Parish County have the highest regulated facility density?
Within St. Charles Parish County, the highest concentrations of EPA-tracked facilities are located in ZIP 70066 (Killona, 1 sites), spanning municipal corridors including St. Charles Parish.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in St. Charles Parish County?
Across St. Charles Parish County, 6 facilities (14.0% 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 Parish County, LA?
Geologic indoor air screening places St. Charles Parish County in EPA Zone 3 — Low Potential (< 2.0 pCi/L). Counties in EPA Radon Zone 3 have a predicted average indoor radon level below 2.0 pCi/L, indicating lower regional geologic radon risk.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in St. Charles Parish County, LA?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 20 Clean Water Act NPDES permits, and 10 impaired water dischargers in St. Charles Parish County, alongside 11 historical FEMA federal disaster declarations (8 flood/storm events).
Does St. Charles County, LA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for St. Charles County indicates a HIGH 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.