Winneshiek County, Iowa — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Winneshiek County, IA?
In Winneshiek County, Iowa, public U.S. EPA records track 159 regulated facilities (#31 of 117 in Iowa), including 2 (1.3%) High-Risk sites and $5,300,000 in federal penalties. Countywide due diligence also covers 50 Safe Drinking Water (SDWIS) facilities, 20 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Winneshiek 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📊 Winneshiek County, IA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Winneshiek County
Top EPA Regulated Facilities in Winneshiek 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 • DECORAH, IA (ZIP 52101 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • RIDGEWAY, IA (ZIP 52165 Sector) | MODERATE (39/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CRESCO, IA (ZIP 52136 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • DECORAH, IA (ZIP 52101 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • DECORAH, IA (ZIP 52101 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • DECORAH, IA (ZIP 52101 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • DECORAH, IA (ZIP 52101 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • DECORAH, IA (ZIP 52101 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| DECORAH COMM SCH DIST - THOMAS R. ROBERTS HIGH SCHOOL FREE PREVIEW (LOW RISK) | 100 E CLAIBORNE DR, DECORAH, IA 52101 | LOW (23/100) | No Violation Identified (0 qtrs NC) | $0 |
| CALMAR MFG CO INC FREE PREVIEW (LOW RISK) | 402 EAST MAIN STREET, CALMAR, IA 52132 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| REILLY CONSTRUCTION FREE PREVIEW (LOW RISK) | 1468 HIGHWAY 52 NORTH, OSSIAN, IA 52161 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| LUTHER COLLEGE FREE PREVIEW (LOW RISK) | 700 COLLEGE DR-PHYSICAL PLANT, DECORAH, IA 52101 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Winneshiek County, Iowa Environmental Due Diligence
How many EPA-regulated environmental sites are in Winneshiek County, Iowa?
Public U.S. EPA records track 159 regulated facilities in Winneshiek County, Iowa (ranking #31 of 117 jurisdictions in IA). Of those, 2 (1.3%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 4 (2.5%) have active non-compliance quarters.
Which ZIP codes and cities in Winneshiek County have the highest regulated facility density?
Within Winneshiek County, the highest concentrations of EPA-tracked facilities are located in ZIP 52101 (Decorah, 89 sites), ZIP 52132 (Calmar, 15 sites), ZIP 52161 (Ossian, 15 sites), spanning municipal corridors including Decorah (85 sites), Calmar (15 sites), Ossian (14 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Winneshiek County?
Across Winneshiek County, 66 facilities (41.5% 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 Winneshiek County, IA?
Geologic indoor air screening places Winneshiek 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 Winneshiek County, IA?
Federal records track 50 Safe Drinking Water (SDWIS) facilities, 20 Clean Water Act NPDES permits, and 10 impaired water dischargers in Winneshiek County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Winneshiek County, IA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Winneshiek County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Low. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.