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 4,185 regulated facilities (#2 of 193 in Kansas), including 22 (0.5%) High-Risk sites and $16,576,587 in federal penalties. Countywide due diligence also covers 11 Safe Drinking Water (SDWIS) facilities, 3,262 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 05, 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66062 Sector) | HIGH (70/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MISSION, KS (ZIP 66202 Sector) | HIGH (68/100) | Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MISSION, KS (ZIP 66202 Sector) | HIGH (66/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • GARDNER, KS (ZIP 66030 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66061 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66061 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66061 Sector) | MODERATE (49/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • OLATHE, KS (ZIP 66051 Sector) | MODERATE (46/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| GENOA A QOL HEALTHCARE COMPANY LLC FREE PREVIEW (LOW RISK) | 6440 NIEMAN ROAD, SHAWNEE, KS 66203 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| TIRES PLUS OLATHE FREE PREVIEW (LOW RISK) | 13512 ALDEN, OLATHE, KS 66062 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| AEROFLEX WICHITA INC FREE PREVIEW (LOW RISK) | 14408 W 105TH STREET, LENEXA, KS 66215 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| 7-ELEVEN #27317 FREE PREVIEW (LOW RISK) | 15090 W 151TH, OLATHE, KS 66062 | LOW (16/100) | 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, Kansas?
Public U.S. EPA records track 4,185 regulated facilities in Johnson County, Kansas (ranking #2 of 193 jurisdictions in KS). Of those, 22 (0.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 15 (0.4%) have active non-compliance quarters.
Which ZIP codes and cities in Johnson County have the highest regulated facility density?
Within Johnson County, the highest concentrations of EPA-tracked facilities are located in ZIP 66061 (Olathe, 663 sites), ZIP 66062 (Olathe, 542 sites), ZIP 66215 (Lenexa, 366 sites), spanning municipal corridors including Olathe (1,247 sites), Lenexa (796 sites), Shawnee (474 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Johnson County?
Across Johnson County, 1,891 facilities (45.2% 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, KS?
Geologic indoor air screening places Johnson 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, KS?
Federal records track 11 Safe Drinking Water (SDWIS) facilities, 3,262 Clean Water Act NPDES permits, and 445 impaired water dischargers in Johnson 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.