Sanders County, Montana — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Sanders County, MT?
In Sanders County, Montana, public U.S. EPA records track 177 regulated facilities (#29 of 65 in Montana), including 0 (0.0%) High-Risk sites and $3,446 in federal penalties. Countywide due diligence also covers 46 Safe Drinking Water (SDWIS) facilities, 112 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Sanders County, MT 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Sanders County, MT Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Sanders County
Top EPA Regulated Facilities in Sanders County, MT
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 • THOMPSON FALLS, MT (ZIP 59873 Sector) | MODERATE (38/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • HERON, MT (ZIP 59844 Sector) | MODERATE (34/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • NOXON, MT (ZIP 59853 Sector) | MODERATE (34/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • THOMPSON FALLS, MT (ZIP 59873 Sector) | MODERATE (34/100) | Violation Identified (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • HOT SPRINGS, MT (ZIP 59845 Sector) | MODERATE (33/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • HOT SPRINGS, MT (ZIP 59845 Sector) | MODERATE (33/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PLAINS, MT (ZIP 59859 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • PARADISE, MT (ZIP 59856 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| MRL - REPAIR AGING RAILROAD BRIDGE PIERS FREE PREVIEW (LOW RISK) | 0.2MI S ON HWY 200, PARADISE, MT 59859 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| IIG THOMPSON FALLS REROUTE MTR111791 FREE PREVIEW (LOW RISK) | HWY 200 AND 471, THOMPSON FALLS, MT 59873 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| IIG-32799 MT BORDER TO THOMPSON FALLS MTR110528 FREE PREVIEW (LOW RISK) | 2640 MT-200, TROUT CREEK, MT 59874 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| LYNCH CREEK RESTORATION, RICHARDSON-MCELDERY EASEMENT FREE PREVIEW (LOW RISK) | 3 MILES NORTH WEST OF PLAINS MONTANA, PLAINS, MT 59859 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Sanders County, Montana Environmental Due Diligence
How many EPA-regulated environmental sites are in Sanders County, Montana?
Public U.S. EPA records track 177 regulated facilities in Sanders County, Montana (ranking #29 of 65 jurisdictions in MT). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 8 (4.5%) have active non-compliance quarters.
Which ZIP codes and cities in Sanders County have the highest regulated facility density?
Within Sanders County, the highest concentrations of EPA-tracked facilities are located in ZIP 59873 (Thompson Falls, 53 sites), ZIP 59853 (Noxon, 24 sites), ZIP 59845 (Hot Springs, 21 sites), spanning municipal corridors including Thompson Falls (50 sites), Plains (27 sites), Noxon (23 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Sanders County?
Across Sanders County, 17 facilities (9.6% 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 Sanders County, MT?
Geologic indoor air screening places Sanders 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 Sanders County, MT?
Federal records track 46 Safe Drinking Water (SDWIS) facilities, 112 Clean Water Act NPDES permits, and 28 impaired water dischargers in Sanders County, alongside 3 historical FEMA federal disaster declarations (1 flood/storm events).
Does Sanders County, MT have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Sanders County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Low. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.