Mercer County, Illinois — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Mercer County, IL?
In Mercer County, Illinois, public U.S. EPA records track 145 regulated facilities (#86 of 193 in Illinois), including 6 (4.1%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 27 Safe Drinking Water (SDWIS) facilities, 36 Clean Water NPDES permits, 5 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Mercer 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📊 Mercer County, IL Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Mercer County
Top EPA Regulated Facilities in Mercer 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 • ALEXIS, IL (ZIP 61412 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SHERRARD, IL (ZIP 61281 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • NEW BOSTON, IL (ZIP 61272 Sector) | MODERATE (45/100) | Violation Identified (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ALEDO, IL (ZIP 61231 Sector) | MODERATE (43/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SHERRARD, IL (ZIP 61281 Sector) | MODERATE (42/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • NEW WINDSOR, IL (ZIP 61465 Sector) | MODERATE (41/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ALEDO, IL (ZIP 61231 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ALEDO, IL (ZIP 61231 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| IMC FERTILIZER INC FREE PREVIEW (LOW RISK) | HWY 17, JOY, IL 61260 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| US ARMY CORPS ENG LOCK DAM 17 FREE PREVIEW (LOW RISK) | 173 LOCK AND DAM RD, NEW BOSTON, IL 61272 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| HENDERSON FORD SALES INC FREE PREVIEW (LOW RISK) | 206 SE 2ND AV, ALEDO, IL 61231 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| LEONHARTS BODY SHOP FREE PREVIEW (LOW RISK) | HWY 17 W, VIOLA, IL 61486 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Mercer County, Illinois Environmental Due Diligence
How many EPA-regulated environmental sites are in Mercer County, Illinois?
Public U.S. EPA records track 145 regulated facilities in Mercer County, Illinois (ranking #86 of 193 jurisdictions in IL). Of those, 6 (4.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 16 (11.0%) have active non-compliance quarters.
Which ZIP codes and cities in Mercer County have the highest regulated facility density?
Within Mercer County, the highest concentrations of EPA-tracked facilities are located in ZIP 61231 (Aledo, 60 sites), ZIP 61486 (Viola, 18 sites), ZIP 61260 (Joy, 13 sites), spanning municipal corridors including Viola (19 sites), Sherrard (12 sites), Joy (12 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Mercer County?
Across Mercer County, 45 facilities (31.0% 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 Mercer County, IL?
Geologic indoor air screening places Mercer 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 Mercer County, IL?
Federal records track 27 Safe Drinking Water (SDWIS) facilities, 36 Clean Water Act NPDES permits, and 2 impaired water dischargers in Mercer County, alongside 5 historical FEMA federal disaster declarations (5 flood/storm events).
Does Mercer County, IL have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Mercer 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.