Idaho County, Idaho — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Idaho County, ID?
In Idaho County, Idaho, public U.S. EPA records track 183 regulated facilities (#17 of 83 in Idaho), including 10 (5.5%) High-Risk sites and $5,353,998 in federal penalties. Countywide due diligence also covers 67 Safe Drinking Water (SDWIS) facilities, 99 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Idaho 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📊 Idaho County, ID Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Idaho County
Top EPA Regulated Facilities in Idaho 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 • COTTONWOOD, ID (ZIP 83522 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ELK CITY, ID (ZIP 83525 Sector) | HIGH (64/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • KAMIAH, ID (ZIP 83536 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • GRANGEVILLE, ID (ZIP 83530 Sector) | MODERATE (54/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • COTTONWOOD, ID (ZIP 83522 Sector) | MODERATE (42/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • WHITE BIRD, ID (ZIP 83554 Sector) | MODERATE (40/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • KOOSKIA, ID (ZIP 83539 Sector) | MODERATE (38/100) | Violation Identified (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • GRANGEVILLE, ID (ZIP 83530 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| COTTONWOOD CHRONICLE FREE PREVIEW (LOW RISK) | 503 KING ST, COTTONWOOD, ID 83522 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| JACKSON TOWING AND BODY SHOP FREE PREVIEW (LOW RISK) | RTE 2, KAMIAH, ID 83536 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| GRANGEVILLE AIRTANKER BASE/USFS FREE PREVIEW (LOW RISK) | 111 AIRPORT RD, GRANGEVILLE, ID 83530 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| US EPA WICKER MERCURY SPILL FREE PREVIEW (LOW RISK) | 42 RAPID RIVER SUBDIVISION, RIGGINS, ID 83549 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Idaho County, Idaho Environmental Due Diligence
How many EPA-regulated environmental sites are in Idaho County, Idaho?
Public U.S. EPA records track 183 regulated facilities in Idaho County, Idaho (ranking #17 of 83 jurisdictions in ID). Of those, 10 (5.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 26 (14.2%) have active non-compliance quarters.
Which ZIP codes and cities in Idaho County have the highest regulated facility density?
Within Idaho County, the highest concentrations of EPA-tracked facilities are located in ZIP 83530 (Grangeville, 42 sites), ZIP 83525 (Oro Grande, 24 sites), ZIP 83522 (Cottonwood, 22 sites), spanning municipal corridors including Grangeville (41 sites), Cottonwood (19 sites), Stites (8 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Idaho County?
Across Idaho County, 40 facilities (21.9% 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 Idaho County, ID?
Geologic indoor air screening places Idaho 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 Idaho County, ID?
Federal records track 67 Safe Drinking Water (SDWIS) facilities, 99 Clean Water Act NPDES permits, and 48 impaired water dischargers in Idaho County, alongside 2 historical FEMA federal disaster declarations (1 flood/storm events).
Does Idaho County, ID have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Idaho County indicates a HIGH 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.