Lemhi County, Idaho — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Lemhi County, ID?
In Lemhi County, Idaho, public U.S. EPA records track 110 regulated facilities (#32 of 83 in Idaho), including 2 (1.8%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 56 Safe Drinking Water (SDWIS) facilities, 76 Clean Water NPDES permits, 11 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Lemhi County, ID 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Lemhi County, ID Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Lemhi County
Top EPA Regulated Facilities in Lemhi County, ID
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 • SALMON, ID (ZIP 83467 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SHOUP, ID (ZIP 83469 Sector) | MODERATE (48/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SALMON, ID (ZIP 83467 Sector) | MODERATE (46/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SALMON, ID (ZIP 83467 Sector) | MODERATE (38/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SALMON, ID (ZIP 83467 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SALMON, ID (ZIP 83467 Sector) | MODERATE (34/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • CARMEN, ID (ZIP 83462 Sector) | MODERATE (34/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • , ID (ZIP Sector) | MODERATE (32/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| SALMON INTERMOUNTAIN FREE PREVIEW (LOW RISK) | 200 N. CHALLIS ST., SALMON, ID 83467 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| SALMON SUBSTATION AND DIESEL POWER PLANT FREE PREVIEW (LOW RISK) | 835 N ST CHARLES ST, SALMON, ID 83467 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| UNITED PARCEL SERVICE SALMON FREE PREVIEW (LOW RISK) | 9 DANCE LANE, SALMON, ID 83467 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| LOWER LEMHI ADAPTIVE MANAGEMENT AREA 3 FREE PREVIEW (LOW RISK) | OLD LEMHI RD, BAKER, ID 83467 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Lemhi County, Idaho Environmental Due Diligence
How many EPA-regulated environmental sites are in Lemhi County, Idaho?
Public U.S. EPA records track 110 regulated facilities in Lemhi County, Idaho (ranking #32 of 83 jurisdictions in ID). Of those, 2 (1.8%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 13 (11.8%) have active non-compliance quarters.
Which ZIP codes and cities in Lemhi County have the highest regulated facility density?
Within Lemhi County, the highest concentrations of EPA-tracked facilities are located in ZIP 83467 (Salmon, 74 sites), ZIP 83466 (North Fork, 10 sites), ZIP 83465 (Lemhi, 9 sites), spanning municipal corridors including Salmon (66 sites), North Fork (10 sites), Baker (5 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Lemhi County?
Across Lemhi County, 25 facilities (22.7% 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 Lemhi County, ID?
Geologic indoor air screening places Lemhi 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 Lemhi County, ID?
Federal records track 56 Safe Drinking Water (SDWIS) facilities, 76 Clean Water Act NPDES permits, and 51 impaired water dischargers in Lemhi County, alongside 11 historical FEMA federal disaster declarations (3 flood/storm events).
Does Lemhi County, ID have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Lemhi County indicates a LOW 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.