Winnebago County, Iowa — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Winnebago County, IA?
In Winnebago County, Iowa, public U.S. EPA records track 91 regulated facilities (#71 of 117 in Iowa), including 1 (1.1%) High-Risk sites and $6,000 in federal penalties. Countywide due diligence also covers 22 Safe Drinking Water (SDWIS) facilities, 10 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Winnebago County, IA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Winnebago County, IA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Winnebago County
ZIP Codes in Winnebago County
Top EPA Regulated Facilities in Winnebago County, IA
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 • LAKE MILLS, IA (ZIP 50450 Sector) | HIGH (70/100) | Significant Violation (10 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • LAKE MILLS, IA (ZIP 50450 Sector) | MODERATE (35/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • LAKE MILLS, IA (ZIP 50450 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • THOMPSON, IA (ZIP 50478 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • LELAND, IA (ZIP 50453 Sector) | MODERATE (30/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • FOREST CITY, IA (ZIP 50436 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • LAKE MILLS, IA (ZIP 50450 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • LAKE MILLS, IA (ZIP 50450 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| HOLLAND CONTRACTING CORP FREE PREVIEW (LOW RISK) | 1400 S 4TH ST, FOREST CITY, IA 50436 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| RANDALL READY MIX LLC - FOREST CITY FREE PREVIEW (LOW RISK) | 1406 S 4TH ST, FOREST CITY, IA 50436 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| LARSON MFG CO INC-LAKE MILLS FREE PREVIEW (LOW RISK) | 500 LARSON AVENUE, LAKE MILLS, IA 50450 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| CUMMINS FILTRATION FREE PREVIEW (LOW RISK) | 311 N. PARK ST., LAKE MILLS, IA 50450 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Winnebago County, Iowa Environmental Due Diligence
How many EPA-regulated environmental sites are in Winnebago County, Iowa?
Public U.S. EPA records track 91 regulated facilities in Winnebago County, Iowa (ranking #71 of 117 jurisdictions in IA). Of those, 1 (1.1%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 2 (2.2%) have active non-compliance quarters.
Which ZIP codes and cities in Winnebago County have the highest regulated facility density?
Within Winnebago County, the highest concentrations of EPA-tracked facilities are located in ZIP 50436 (Forest City, 36 sites), ZIP 50450 (Lake Mills, 29 sites), ZIP 50478 (Thompson, 10 sites), spanning municipal corridors including Forest City (36 sites), Lake Mills (29 sites), Thompson (10 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Winnebago County?
Across Winnebago County, 45 facilities (49.5% 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 Winnebago County, IA?
Geologic indoor air screening places Winnebago 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 Winnebago County, IA?
Federal records track 22 Safe Drinking Water (SDWIS) facilities, 10 Clean Water Act NPDES permits, and 0 impaired water dischargers in Winnebago County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Winnebago County, IA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Winnebago 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.