Lake County, Montana — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Lake County, Montana, public U.S. EPA records track 291 regulated facilities (#15 of 65 in Montana), including 3 (1.0%) High-Risk sites and $4,665 in federal penalties. Countywide due diligence also covers 106 Safe Drinking Water (SDWIS) facilities, 151 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Lake 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📊 Lake County, MT Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Lake County
Top EPA Regulated Facilities in Lake 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • RONAN, MT (ZIP 59864 Sector) | HIGH (64/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ST. IGNATIUS, MT (ZIP 59865 Sector) | HIGH (64/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CHARLO, MT (ZIP 59824 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • RONAN, MT (ZIP 59864 Sector) | MODERATE (47/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • RONAN, MT (ZIP 59864 Sector) | MODERATE (45/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • CHARLO, MT (ZIP 59824 Sector) | MODERATE (44/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • RONAN, MT (ZIP 59864 Sector) | MODERATE (43/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • RONAN, MT (ZIP 59864 Sector) | MODERATE (43/100) | Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| CONOCO SERVICE STATION FREE PREVIEW (LOW RISK) | 9 HWY 93 S, RONAN, MT 59864 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| O'REILLY AUTO PARTS # 4805 FREE PREVIEW (LOW RISK) | 101 RIDGEWATER DRIVE, POLSON, MT 59860 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| EAST BAY SUBDIVISION FREE PREVIEW (LOW RISK) | , , MT | LOW (9/100) | Inactive (0 qtrs NC) | $0 |
| PLUM CREEK MANUFACTURING PABLO FREE PREVIEW (LOW RISK) | , , MT | LOW (9/100) | Inactive (0 qtrs NC) | $0 |
Frequently Asked Questions — Lake County, Montana Environmental Due Diligence
How many EPA-regulated environmental sites are in Lake County, Montana?
Public U.S. EPA records track 291 regulated facilities in Lake County, Montana (ranking #15 of 65 jurisdictions in MT). Of those, 3 (1.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 19 (6.5%) have active non-compliance quarters.
Which ZIP codes and cities in Lake County have the highest regulated facility density?
Within Lake County, the highest concentrations of EPA-tracked facilities are located in ZIP 59860 (Polson, 131 sites), ZIP 59911 (Bigfork, 118 sites), ZIP 59864 (Ronan, 57 sites), spanning municipal corridors including Polson (129 sites), Bigfork (98 sites), Ronan (57 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Lake County?
Across Lake County, 51 facilities (17.5% 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 Lake County, MT?
Geologic indoor air screening places Lake 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 Lake County, MT?
Federal records track 106 Safe Drinking Water (SDWIS) facilities, 151 Clean Water Act NPDES permits, and 13 impaired water dischargers in Lake County, alongside 1 historical FEMA federal disaster declarations (0 flood/storm events).
Does Lake County, MT have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Lake County indicates a LOW 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.