Oregon County, Missouri — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Oregon County, MO?
In Oregon County, Missouri, public U.S. EPA records track 83 regulated facilities (#115 of 190 in Missouri), including 2 (2.4%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 9 Safe Drinking Water (SDWIS) facilities, 45 Clean Water NPDES permits, 4 FEMA Federal Disaster Declarations (4 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Oregon County, MO 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Oregon County, MO Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Oregon County
ZIP Codes in Oregon County
Top EPA Regulated Facilities in Oregon County, MO
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 • THAYER, MO (ZIP 65791 Sector) | HIGH (64/100) | Significant Violation (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • THAYER, MO (ZIP 65791 Sector) | HIGH (64/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • THAYER, MO (ZIP 65791 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MYRTLE, MO (ZIP 65778 Sector) | MODERATE (32/100) | Violation Identified (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • THAYER, MO (ZIP 65791 Sector) | MODERATE (31/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • THAYER, MO (ZIP 65791 Sector) | MODERATE (30/100) | Violation Identified (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • KOSHKONONG, MO (ZIP 65692 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • KOSHKONONG, MO (ZIP 65692 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| THOMASVILLE SITE IMPROVEMENTS FREE PREVIEW (LOW RISK) | OREGON COUNTY 422 AND MO-99, THOMASVILLE, MO 65438 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| ALTON QUICK CONNECTION INC FREE PREVIEW (LOW RISK) | 509 W HWY 160, ALTON, MO 65606 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| THAYER CITY OF FREE PREVIEW (LOW RISK) | FRONT ST, THAYER, MO 65791 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| BURLINGTON NORTHERN SANTA FE FREE PREVIEW (LOW RISK) | 126 FIRST ST, THAYER, MO 65791 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Oregon County, Missouri Environmental Due Diligence
How many EPA-regulated environmental sites are in Oregon County, Missouri?
Public U.S. EPA records track 83 regulated facilities in Oregon County, Missouri (ranking #115 of 190 jurisdictions in MO). Of those, 2 (2.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 5 (6.0%) have active non-compliance quarters.
Which ZIP codes and cities in Oregon County have the highest regulated facility density?
Within Oregon County, the highest concentrations of EPA-tracked facilities are located in ZIP 65791 (Thayer, 34 sites), ZIP 65606 (Alton, 21 sites), ZIP 65692 (Koshkonong, 14 sites), spanning municipal corridors including Thayer (34 sites), Alton (21 sites), Koshkonong (14 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Oregon County?
Across Oregon County, 10 facilities (12.0% 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 Oregon County, MO?
Geologic indoor air screening places Oregon County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Oregon County, MO?
Federal records track 9 Safe Drinking Water (SDWIS) facilities, 45 Clean Water Act NPDES permits, and 1 impaired water dischargers in Oregon County, alongside 4 historical FEMA federal disaster declarations (4 flood/storm events).
Does Oregon County, MO have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Oregon 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.