Jefferson County, Illinois — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Jefferson County, IL?
In Jefferson County, Illinois, public U.S. EPA records track 291 regulated facilities (#55 of 193 in Illinois), including 5 (1.7%) High-Risk sites and $860,400 in federal penalties. Countywide due diligence also covers 15 Safe Drinking Water (SDWIS) facilities, 59 Clean Water NPDES permits, 5 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Jefferson 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📊 Jefferson County, IL Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Jefferson County
Top EPA Regulated Facilities in Jefferson 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 • MOUNT VERNON, IL (ZIP 62864 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • WALTONVILLE, IL (ZIP 62894 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MOUNT VERNON, IL (ZIP 62864 Sector) | MODERATE (54/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MT VERNON, IL (ZIP 62864 Sector) | MODERATE (46/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MOUNT VERNON, IL (ZIP 62864 Sector) | MODERATE (45/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MOUNT VERNON, IL (ZIP 62864 Sector) | MODERATE (45/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MOUNT VERNON, IL (ZIP 62864 Sector) | MODERATE (43/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MOUNT VERNON, IL (ZIP 62864 Sector) | MODERATE (43/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| REND LAKE COLLEGE FREE PREVIEW (LOW RISK) | 468 N KEN GRAY PKWY, INA, IL 62846 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| D & D OIL CO INC FREE PREVIEW (LOW RISK) | RTE 37 SOUTH, MOUNT VERNON, IL 62864 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| IDOT FREE PREVIEW (LOW RISK) | BRG 041-0001, BONNIE, IL 62816 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| WALGREEN CO 08-W FREE PREVIEW (LOW RISK) | 5100 LAKE TERRACE NE, MT VERNON, IL 62864 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Jefferson County, Illinois Environmental Due Diligence
How many EPA-regulated environmental sites are in Jefferson County, Illinois?
Public U.S. EPA records track 291 regulated facilities in Jefferson County, Illinois (ranking #55 of 193 jurisdictions in IL). Of those, 5 (1.7%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 16 (5.5%) have active non-compliance quarters.
Which ZIP codes and cities in Jefferson County have the highest regulated facility density?
Within Jefferson County, the highest concentrations of EPA-tracked facilities are located in ZIP 62864 (Mt Vernon, 235 sites), ZIP 62898 (Woodlawn, 15 sites), ZIP 62810 (Jefferson, 14 sites), spanning municipal corridors including Mount Vernon (136 sites), Mt Vernon (78 sites), Woodlawn (15 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Jefferson County?
Across Jefferson County, 150 facilities (51.5% 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 Jefferson County, IL?
Geologic indoor air screening places Jefferson 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 Jefferson County, IL?
Federal records track 15 Safe Drinking Water (SDWIS) facilities, 59 Clean Water Act NPDES permits, and 6 impaired water dischargers in Jefferson County, alongside 5 historical FEMA federal disaster declarations (5 flood/storm events).
Does Jefferson County, IL have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Jefferson 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.