Johnson County, Iowa — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Johnson County, IA?
In Johnson County, Iowa, public U.S. EPA records track 19 regulated facilities (#107 of 117 in Iowa), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 3 Safe Drinking Water (SDWIS) facilities, 6 Clean Water NPDES permits, 7 FEMA Federal Disaster Declarations (6 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Johnson 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📊 Johnson County, IA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Johnson County
ZIP Codes in Johnson County
Top EPA Regulated Facilities in Johnson 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 Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • OXFORD, IA (ZIP 52322 Sector) | MODERATE (35/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| DUBUQUE ST PHASE IV (PACHA) APARTMENT BUILDING FREE PREVIEW (LOW RISK) | 225 E PRENTISS, IOWA CITY, IA 52240 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| ROLLINS PASS SUBDIVISION FREE PREVIEW (LOW RISK) | SW CORNER OF LOWER WEST BRANCH RD & TAFT AVE, IOWA CITY, IA 52240 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| THE CROSSINGS PHASE TWO, MULTI-FAMILY RESIDENTIAL BUILDINGS FREE PREVIEW (LOW RISK) | 1141 S GILBERT STREET, IOWA CITY, IA 52240 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| FOX RIDGE FARM FREE PREVIEW (LOW RISK) | , IOWA CITY, IA 52240 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • CORALVILLE, IA (ZIP 52241 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CORALVILLE, IA (ZIP 52241 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • IOWA CITY, IA (ZIP 52240 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • IOWA CITY, IA (ZIP 52245 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • NORTH LIBERTY, IA (ZIP 52317 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SOLON, IA (ZIP 52333 Sector) | LOW (11/100) | Inactive (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • NORTH LIBERTY, IA (ZIP 52317 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Johnson County, Iowa Environmental Due Diligence
How many EPA-regulated environmental sites are in Johnson County County, Iowa?
Public U.S. EPA records track 19 regulated facilities in Johnson County County, Iowa (ranking #107 of 117 jurisdictions in IA). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (5.3%) have active non-compliance quarters.
Which ZIP codes and cities in Johnson County County have the highest regulated facility density?
Within Johnson County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Johnson County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Johnson County County?
Across Johnson County County, 0 facilities (0.0% 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 Johnson County County, IA?
Geologic indoor air screening places Johnson County 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 Johnson County County, IA?
Federal records track 3 Safe Drinking Water (SDWIS) facilities, 6 Clean Water Act NPDES permits, and 3 impaired water dischargers in Johnson County County, alongside 7 historical FEMA federal disaster declarations (6 flood/storm events).
Does Johnson County, IA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Johnson County indicates a MODERATE 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.