Thomas County, Kansas — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Thomas County, Kansas, public U.S. EPA records track 141 regulated facilities (#60 of 193 in Kansas), including 1 (0.7%) High-Risk sites and $5,300,000 in federal penalties. Countywide due diligence also covers 8 Safe Drinking Water (SDWIS) facilities, 58 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Thomas 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📊 Thomas County, KS Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Thomas County
ZIP Codes in Thomas County
Top EPA Regulated Facilities in Thomas 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 • COLBY, KS (ZIP 67701 Sector) | HIGH (64/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • COLBY, KS (ZIP 67701 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • REXFORD, KS (ZIP 67753 Sector) | MODERATE (30/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • , KS (ZIP Sector) | MODERATE (30/100) | Inactive (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • COLBY, KS (ZIP 67701 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • BREWSTER, KS (ZIP 67732 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • COLBY, KS (ZIP 67701 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 • COLBY, KS (ZIP 67701 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| FRONTIER AG INC-MENLO FREE PREVIEW (LOW RISK) | 100 N. 5TH, MENLO, KS 67753 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| CITIZEN'S HEALTH MEDICAL CENTER FREE PREVIEW (LOW RISK) | 100 E COLLEGE DR, COLBY, KS 67701 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| COLBY CITY OF FREE PREVIEW (LOW RISK) | 120 NORTH STERLING AVENUE, COLBY, KS 67701 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| N. A. TIMMERMAN, INC. FREE PREVIEW (LOW RISK) | 9 MILES EAST AND 1.5 MILES SOUTH, COLBY, KS 67701 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Thomas County, Kansas Environmental Due Diligence
How many EPA-regulated environmental sites are in Thomas County, Kansas?
Public U.S. EPA records track 141 regulated facilities in Thomas County, Kansas (ranking #60 of 193 jurisdictions in KS). Of those, 1 (0.7%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 2 (1.4%) have active non-compliance quarters.
Which ZIP codes and cities in Thomas County have the highest regulated facility density?
Within Thomas County, the highest concentrations of EPA-tracked facilities are located in ZIP 67701 (Colby, 116 sites), ZIP 67753 (Rexford, 16 sites), ZIP 67734 (Gem, 3 sites), spanning municipal corridors including Colby (116 sites), Rexford (11 sites), Menlo (6 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Thomas County?
Across Thomas County, 70 facilities (49.6% 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 Thomas County, KS?
Geologic indoor air screening places Thomas 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 Thomas County, KS?
Federal records track 8 Safe Drinking Water (SDWIS) facilities, 58 Clean Water Act NPDES permits, and 13 impaired water dischargers in Thomas County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).
Does Thomas County, KS have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Thomas County indicates a MODERATE 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.