PUBLIC DATA SOURCE: U.S. EPA ECHO, FRS, RCRA, TRI & FEMA NFHL 3,230,651 Regulated Sites • All 50 States • Data as of November 01, 2026
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6-IN-1 COUNTY ENVIRONMENTAL, WATER, SOIL & FLOOD HUB • IL

Adams County, Illinois — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards

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In Adams County, Illinois, public U.S. EPA records track 466 regulated facilities (#25 of 193 in Illinois), including 6 (1.3%) High-Risk sites and $5,327,000 in federal penalties. Countywide due diligence also covers 27 Safe Drinking Water (SDWIS) facilities, 121 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 (#25/193)
466
High-Risk (1.3% vs 1.3% State)
6
Active Violators (5.8%)
27
Drinking & Clean Water
148
Federal Penalties
$5,327,000

Adams 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
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🪨 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
27 SDWIS Systems • 121 NPDES Permits
🔒 13 Impaired Water (303d) & 34 Violation Dockets Locked
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☢️ 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

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

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)
1. County Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 246 (52.8%)
Clean Water (NPDES) & Drinking Water (SDWIS) 148 (31.8%)
Active EPA Non-Compliance Dockets 27 (5.8%)
High-Risk Enforcement Facilities 6 (1.3%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Low (64.2/100)
🌊 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
Adams County High-Risk % 1.3%
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 Adams 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 • QUINCY, IL (ZIP 62305 Sector) HIGH (70/100) Significant Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • LORAINE, IL (ZIP 62349 Sector) HIGH (64/100) Significant Violation (5 qtrs NC) 🔒 5 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • QUINCY, IL (ZIP 62305 Sector) HIGH (64/100) Significant Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • QUINCY, IL (ZIP 62301 Sector) HIGH (64/100) Significant Violation (2 qtrs NC) 🔒 2 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • QUINCY, IL (ZIP 62301 Sector) MODERATE (54/100) Violation Identified (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • QUINCY, IL (ZIP 62301 Sector) MODERATE (47/100) Violation Identified (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • QUINCY, IL (ZIP 62305 Sector) MODERATE (44/100) Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • QUINCY, IL (ZIP 62305 Sector) MODERATE (44/100) Violation Identified (10 qtrs NC) 🔒 10 Qtrs Non-Compliance • Unlock →
METHODE ELECTRONICS INC FREE PREVIEW (LOW RISK) 1015 COUNTY RD 2400, GOLDEN, IL 62339 LOW (19/100) No Violation Identified (0 qtrs NC) $0
TWO RIVERS FS INC. FREE PREVIEW (LOW RISK) 2551 HIGHWAY 104, LIBERTY, IL 62347 LOW (19/100) No Violation Identified (0 qtrs NC) $0
PRECISION PLATING OF QUINCY INC FREE PREVIEW (LOW RISK) 217 N 2ND ST, QUINCY, IL 62301 LOW (18/100) No Violation Identified (0 qtrs NC) $0
COUNTER TOP PROCESSING FREE PREVIEW (LOW RISK) 4550 GARDNER EXPRESSWAY, QUINCY, IL 62301 LOW (17/100) No Violation Identified (0 qtrs NC) $0
🔒 + 454 Additional Regulated & Enforcement Records in Adams County Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Adams County, Illinois Environmental Due Diligence

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

Public U.S. EPA records track 466 regulated facilities in Adams County, Illinois (ranking #25 of 193 jurisdictions in IL). Of those, 6 (1.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 27 (5.8%) have active non-compliance quarters.

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

Within Adams County, the highest concentrations of EPA-tracked facilities are located in ZIP 62301 (Quincy, 265 sites), ZIP 62305 (Quincy, 153 sites), ZIP 62347 (Liberty, 15 sites), spanning municipal corridors including Quincy (419 sites), Liberty (17 sites), Golden (14 sites).

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

Across Adams County, 246 facilities (52.8% 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 Adams County, IL?

Geologic indoor air screening places Adams 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 Adams County, IL?

Federal records track 27 Safe Drinking Water (SDWIS) facilities, 121 Clean Water Act NPDES permits, and 13 impaired water dischargers in Adams County, alongside 5 historical FEMA federal disaster declarations (5 flood/storm events).

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

USDA regional soil engineering screening for Adams 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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