Lyon County, Iowa — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Lyon County, IA?
In Lyon County, Iowa, public U.S. EPA records track 102 regulated facilities (#62 of 117 in Iowa), including 3 (2.9%) High-Risk sites and $7,000 in federal penalties. Countywide due diligence also covers 13 Safe Drinking Water (SDWIS) facilities, 37 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).
Lyon 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📊 Lyon County, IA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Lyon County
Top EPA Regulated Facilities in Lyon 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 • LARCHWOOD, IA (ZIP 51241 Sector) | HIGH (66/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • DOON, IA (ZIP 51235 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • LESTER, IA (ZIP 51242 Sector) | MODERATE (39/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ROCK RAPIDS, IA (ZIP 51246 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • INWOOD, IA (ZIP 51240 Sector) | MODERATE (30/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ALVORD, IA (ZIP 51230 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 • GEORGE, IA (ZIP 51237 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ROCK RAPIDS, IA (ZIP 51246 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| MILLER LOADERS INC FREE PREVIEW (LOW RISK) | 1242 ARIZONA AVENUE, LARCHWOOD, IA 51241 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| MAINTAINER CUSTOM BODIES INC FREE PREVIEW (LOW RISK) | 909 S EAST ST, ROCK RAPIDS, IA 51246 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| DIVERSIFIED INDUSTRIES DBA SUDENGA INDUSTRIAL FREE PREVIEW (LOW RISK) | 2002 KINGBIRD AVENUE, GEORGE, IA 51237 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| SIEBRING MFG CO FREE PREVIEW (LOW RISK) | 303 SOUTH MAIN STREET, GEORGE, IA 51237 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Lyon County, Iowa Environmental Due Diligence
How many EPA-regulated environmental sites are in Lyon County, Iowa?
Public U.S. EPA records track 102 regulated facilities in Lyon County, Iowa (ranking #62 of 117 jurisdictions in IA). Of those, 3 (2.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 4 (3.9%) have active non-compliance quarters.
Which ZIP codes and cities in Lyon County have the highest regulated facility density?
Within Lyon County, the highest concentrations of EPA-tracked facilities are located in ZIP 51246 (Rock Rapids, 41 sites), ZIP 51240 (Inwood, 23 sites), ZIP 51235 (Doon, 9 sites), spanning municipal corridors including Rock Rapids (45 sites), Inwood (25 sites), Doon (9 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Lyon County?
Across Lyon County, 27 facilities (26.5% 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 Lyon County, IA?
Geologic indoor air screening places Lyon 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 Lyon County, IA?
Federal records track 13 Safe Drinking Water (SDWIS) facilities, 37 Clean Water Act NPDES permits, and 8 impaired water dischargers in Lyon County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Lyon County, IA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Lyon County indicates a HIGH shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.