St. Clair County, Illinois — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in St. Clair County, IL?
In St. Clair County, Illinois, public U.S. EPA records track 421 regulated facilities (#31 of 193 in Illinois), including 32 (7.6%) High-Risk sites and $5,951,367 in federal penalties. Countywide due diligence also covers 49 Safe Drinking Water (SDWIS) facilities, 253 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
St. Clair County, IL 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 St. Clair County, IL Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in St. Clair County
Top EPA Regulated Facilities in St. Clair County, IL
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 • DUPO, IL (ZIP 62239 Sector) | HIGH (78/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SAUGET, IL (ZIP 62206 Sector) | HIGH (75/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SAUGET, IL (ZIP 62201 Sector) | HIGH (71/100) | Violation Identified (3 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • FREEBURG, IL (ZIP 62243 Sector) | HIGH (68/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • EAST SAINT LOUIS, IL (ZIP 62201 Sector) | HIGH (68/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • BELLEVILLE, IL (ZIP 62220 Sector) | HIGH (67/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SAUGET, IL (ZIP 62201 Sector) | HIGH (65/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SAUGET, IL (ZIP 62206 Sector) | HIGH (65/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| CENTURY BRASS WORKS INC FREE PREVIEW (LOW RISK) | 1100 N ILLINOIS ST, SWANSEA, IL 62226 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| KERRY INGREDIENTS INC FREE PREVIEW (LOW RISK) | 100 E WASHINGTON ST, MILLSTADT, IL 62260 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| PACE ANALYTICAL SERVICE LLC FREE PREVIEW (LOW RISK) | 2231 W ALTORFER DR, PEORIA, IL 61615 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| KOUNTRY KORNERS (126532) FREE PREVIEW (LOW RISK) | , , IL | LOW (13/100) | Inactive (0 qtrs NC) | $0 |
Frequently Asked Questions — St. Clair County, Illinois Environmental Due Diligence
How many EPA-regulated environmental sites are in St. Clair County, Illinois?
Public U.S. EPA records track 421 regulated facilities in St. Clair County, Illinois (ranking #31 of 193 jurisdictions in IL). Of those, 32 (7.6%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 43 (10.2%) have active non-compliance quarters.
Which ZIP codes and cities in St. Clair County have the highest regulated facility density?
Within St. Clair County, the highest concentrations of EPA-tracked facilities are located in ZIP 62258 (Mascoutah, 89 sites), ZIP 62207 (East Saint Louis, 61 sites), ZIP 62254 (Lebanon, Township Of, 56 sites), spanning municipal corridors including Mascoutah (81 sites), Caseyville (51 sites), Millstadt (49 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in St. Clair County?
Across St. Clair County, 64 facilities (15.2% 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. Clair County, IL?
Geologic indoor air screening places St. Clair County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in St. Clair County, IL?
Federal records track 49 Safe Drinking Water (SDWIS) facilities, 253 Clean Water Act NPDES permits, and 49 impaired water dischargers in St. Clair County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does St. Clair County, IL have expansive clay soil or foundation risk?
USDA regional soil engineering screening for St. Clair 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.