Jefferson County, Idaho — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Jefferson County, ID?
In Jefferson County, Idaho, public U.S. EPA records track 120 regulated facilities (#29 of 83 in Idaho), including 3 (2.5%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 57 Safe Drinking Water (SDWIS) facilities, 31 Clean Water NPDES permits, 11 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Jefferson 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📊 Jefferson County, ID Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Jefferson County
ZIP Codes in Jefferson County
Top EPA Regulated Facilities in Jefferson 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 • RIGBY, ID (ZIP 83442 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 • ROBERTS, ID (ZIP 83444 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ROBERTS, ID (ZIP 83444 Sector) | MODERATE (41/100) | Violation Identified (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • RIGBY, ID (ZIP 83442 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • TERRETON, ID (ZIP 83450 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • RIGBY, ID (ZIP 83442 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • RIGBY, ID (ZIP 83442 Sector) | MODERATE (36/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • TERRETON, ID (ZIP 83450 Sector) | MODERATE (35/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| ROBERTS, ID 226 FREE PREVIEW (LOW RISK) | 272 NORTH BASSETT ROAD, ROBERTS, ID 83444 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| SILVER CREEK DISTILLERS FREE PREVIEW (LOW RISK) | 134 N 3300 E, RIGBY, ID 83442 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| FEDERAL EXPRESS - ZREX FREE PREVIEW (LOW RISK) | 594 N 4062 E, RIGBY, ID 83442 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| US DOI BLM CINDER RD FREE PREVIEW (LOW RISK) | T4N R35E S4 NW SW, ROBERTS, ID 83444 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Jefferson County, Idaho Environmental Due Diligence
How many EPA-regulated environmental sites are in Jefferson County, Idaho?
Public U.S. EPA records track 120 regulated facilities in Jefferson County, Idaho (ranking #29 of 83 jurisdictions in ID). Of those, 3 (2.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 16 (13.3%) have active non-compliance quarters.
Which ZIP codes and cities in Jefferson County have the highest regulated facility density?
Within Jefferson County, the highest concentrations of EPA-tracked facilities are located in ZIP 83442 (Rigby, 62 sites), ZIP 83450 (Terreton, 14 sites), ZIP 83443 (Ririe, 12 sites), spanning municipal corridors including Rigby (62 sites), Terreton (12 sites), Ririe (11 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Jefferson County?
Across Jefferson County, 29 facilities (24.2% 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 Jefferson County, ID?
Geologic indoor air screening places Jefferson 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 Jefferson County, ID?
Federal records track 57 Safe Drinking Water (SDWIS) facilities, 31 Clean Water Act NPDES permits, and 2 impaired water dischargers in Jefferson County, alongside 11 historical FEMA federal disaster declarations (3 flood/storm events).
Does Jefferson County, ID have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Jefferson 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.