Johnson County, Kansas — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Johnson County, KS?
In Johnson County, Kansas, public U.S. EPA records track 1,161 regulated facilities (#5 of 193 in Kansas), including 2 (0.2%) High-Risk sites and $65,544 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 1,129 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).
Johnson County, KS 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, KS 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, KS
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 • SPRING HILL, KS (ZIP 66083 Sector) | MODERATE (46/100) | Violation Identified (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SHAWNEE, KS (ZIP 66203 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66061 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • LENEXA, KS (ZIP 66214 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66062 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66061 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • LAWRENCE, KS (ZIP 66047 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66062 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| ERNIE MILLER PARK PHASE I IMPLEMENTATION FREE PREVIEW (LOW RISK) | 909 N HIGHWAY 7, OLATHE, KS 66061 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| SMMC ATC SITE DEVELOPMENT PLAN FREE PREVIEW (LOW RISK) | 9301 N. 73RD STREET, MERRIAM, KS 66204 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| TOMAHAWK HILLS CLUBHOUSE FREE PREVIEW (LOW RISK) | RED OAK DR. & MIDLAND DR., SHAWNEE, KS 66217 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| K TEN PLACE II FREE PREVIEW (LOW RISK) | 34000 W 91ST TERR, DE SOTO, KS 66018 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Johnson County, Kansas Environmental Due Diligence
How many EPA-regulated environmental sites are in Johnson County County, Kansas?
Public U.S. EPA records track 1,161 regulated facilities in Johnson County County, Kansas (ranking #5 of 193 jurisdictions in KS). Of those, 2 (0.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (0.1%) 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 ZIP 66212 (Overaldn Park, 164 sites), ZIP 66213 (Overland Park, 107 sites), ZIP 66085 (Stilwell, 105 sites), spanning municipal corridors including Overland Park (1,135 sites), Gardner (222 sites), Stilwell (55 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Johnson County County?
Across Johnson County County, 3 facilities (0.3% 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, KS?
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, KS?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 1,129 Clean Water Act NPDES permits, and 112 impaired water dischargers in Johnson County County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Johnson County, KS have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Johnson 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.