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Knox County, Illinois — Property Hazard, Flood Zone, Soil, Water & EPA Guide

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What Are the Flood, Soil Foundation & EPA Risks in Knox County, IL?

In Knox County, Illinois, public U.S. EPA records track 440 regulated facilities (#29 of 193 in Illinois), including 24 (5.5%) High-Risk sites and $5,472,314 in federal penalties. Countywide due diligence also covers 60 Safe Drinking Water (SDWIS) facilities, 87 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).

Total EPA Sites (#29/193)
440
High-Risk (5.5% vs 1.3% State)
24
Active Violators (10.9%)
48
Drinking & Clean Water
147
Federal Penalties
$5,472,314

Knox 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
🌊 Flood Zone & FEMA Disaster History
5 County FEMA Declarations (5 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Requirement Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: HIGH • Pipe Corrosion: High
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
60 SDWIS Systems • 87 NPDES Permits
🔒 10 Impaired Water (303d) & 61 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Knox County, IL Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)
1. County Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 219 (49.8%)
Clean Water (NPDES) & Drinking Water (SDWIS) 147 (33.4%)
Active EPA Non-Compliance Dockets 48 (10.9%)
High-Risk Enforcement Facilities 24 (5.5%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Low (57.2/100)
🌊 Flood Exposure 3/10 • Low Hazard
🔥 Wildfire Hazard 1/10 • Very Low Hazard
☀️ Extreme Heat 5/10 • Moderate Hazard
🌪️ Severe Wind / Storm 7/10 • High Hazard
🫨 USGS Earthquake 2/10 • Low Seismic Hazard
3. County vs. State & National Benchmark
Knox County High-Risk % 5.5%
Illinois (IL) Statewide Avg 1.3%
U.S. National EPA Baseline 3.6%
Unlock Street-Level Dossier: Full report reveals unredacted facility names, distances in feet, exact USDA soil LEP %, water table depth, and parcel flood zone.
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Top EPA Regulated Facilities in Knox 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).

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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 • DAHINDA, IL (ZIP 61428 Sector) HIGH (64/100) Significant Violation (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • DAHINDA, IL (ZIP 61428 Sector) HIGH (64/100) Significant Violation (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • GALESBURG, IL (ZIP 61401 Sector) HIGH (64/100) Significant Violation (9 qtrs NC) 🔒 9 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • DAHINDA, IL (ZIP 61428 Sector) HIGH (64/100) Significant Violation (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • GALESBURG, IL (ZIP 61401 Sector) HIGH (64/100) Significant Violation (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • DAHINDA, IL (ZIP 61428 Sector) HIGH (64/100) Significant Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • DAHINDA, IL (ZIP 61428 Sector) HIGH (64/100) Significant Violation (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • DAHINDA, IL (ZIP 61425 Sector) HIGH (64/100) Significant Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
NATIONAL COMP TECH CTR FREE PREVIEW (LOW RISK) 41S 32PT 1E SEC TWP 11N, GALESBURG, IL 61402 LOW (17/100) No Violation Identified (0 qtrs NC) $0
IDOT BRIDGE 048-0045 FREE PREVIEW (LOW RISK) CH 9 OVR I 74, KNOXVILLE, IL 61448 LOW (17/100) No Violation Identified (0 qtrs NC) $0
HEAT AND CONTROL HAWKEYE DIV FREE PREVIEW (LOW RISK) RR 2, GALESBURG, IL 61401 LOW (16/100) No Violation Identified (0 qtrs NC) $0
CASEY GENERAL STORE FREE PREVIEW (LOW RISK) 221 N DEPOT, WATAGA, IL 61488 LOW (16/100) No Violation Identified (0 qtrs NC) $0
🔒 + 428 Additional Regulated & Enforcement Records in Knox County Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Knox County, Illinois Environmental Due Diligence

How many EPA-regulated environmental sites are in Knox County, Illinois?

Public U.S. EPA records track 440 regulated facilities in Knox County, Illinois (ranking #29 of 193 jurisdictions in IL). Of those, 24 (5.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 48 (10.9%) have active non-compliance quarters.

Which ZIP codes and cities in Knox County have the highest regulated facility density?

Within Knox County, the highest concentrations of EPA-tracked facilities are located in ZIP 61448 (Knoxville, 25 sites), ZIP 61410 (Abingdon, 19 sites), ZIP 61428 (Dahinda, 17 sites), spanning municipal corridors including Knoxville (25 sites), Dahinda (20 sites), Abingdon (19 sites).

How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Knox County?

Across Knox County, 219 facilities (49.8% 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 Knox County, IL?

Geologic indoor air screening places Knox 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 Knox County, IL?

Federal records track 60 Safe Drinking Water (SDWIS) facilities, 87 Clean Water Act NPDES permits, and 10 impaired water dischargers in Knox County, alongside 5 historical FEMA federal disaster declarations (5 flood/storm events).

Does Knox County, IL have expansive clay soil or foundation risk?

USDA regional soil engineering screening for Knox 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.

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