Navajo Nation County, NN — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Navajo Nation County, NN?
In Navajo Nation County, NN, public U.S. EPA records track 6 regulated facilities (#3 of 3 in NN), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water NPDES permits, 0 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Navajo Nation County, NN 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Navajo Nation County, NN Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Navajo Nation County
ZIP Codes in Navajo Nation County
Top EPA Regulated Facilities in Navajo Nation County, NN
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 |
|---|---|---|---|---|
| BLACK MESA PREPARATION PLANT STATION #1 FREE PREVIEW (LOW RISK) | SE 1/4 NW 1/4 SECTION 15 T35N R18E, G&/SR PM, KAYENTA, NN 86033 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| THE PITTSBURG & MIDWAY COAL MINING CO FREE PREVIEW (LOW RISK) | 25 MI NW OF GALLUP ON HWY 264, GALLUP, NN 87301 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| NAVAJO NATION - NFPI FREE PREVIEW (LOW RISK) | INDIAN SERVICE ROUTE 12 AT INDIAN SERVICE ROAD 31, CRYSTAL, NN 87328 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| ATCHISON, TOPEKA & SANTA FE RY CO FREE PREVIEW (LOW RISK) | 121 S MAIN ST, CLOVIS, NN 88101 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • WINSLOW, NN (ZIP 86047 Sector) | LOW (15/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • CHINLE, NN (ZIP 87420 Sector) | LOW (15/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Navajo Nation County, NN Environmental Due Diligence
How many EPA-regulated environmental sites are in Navajo Nation County, NN?
Public U.S. EPA records track 6 regulated facilities in Navajo Nation County, NN (ranking #3 of 3 jurisdictions in NN). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in Navajo Nation County have the highest regulated facility density?
Within Navajo Nation County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Kayenta (4 sites), Winslow (2 sites), Gallup (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Navajo Nation County?
Across Navajo Nation County, 6 facilities (100.0% 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 Navajo Nation County, NN?
Geologic indoor air screening places Navajo Nation County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Navajo Nation County, NN?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water Act NPDES permits, and 0 impaired water dischargers in Navajo Nation County, alongside 0 historical FEMA federal disaster declarations (0 flood/storm events).
Does Navajo Nation County, NN have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Navajo Nation County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.