Navajo - Az County, Arizona — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Navajo - Az County, AZ?
In Navajo - Az County, Arizona, public U.S. EPA records track 2 regulated facilities (#70 of 70 in Arizona), 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, 2 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Navajo - Az County, AZ 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Navajo - Az County, AZ Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Navajo - Az County
ZIP Codes in Navajo - Az County
Top EPA Regulated Facilities in Navajo - Az County, AZ
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 |
|---|---|---|---|---|
| KAYENTA TOWNSHIP FREE PREVIEW (LOW RISK) | 2.5 MILES N HWY 163, KAYENTA, AZ 86033 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Navajo - Az County, Arizona Environmental Due Diligence
How many EPA-regulated environmental sites are in Navajo - Az County, Arizona?
Public U.S. EPA records track 2 regulated facilities in Navajo - Az County, Arizona (ranking #70 of 70 jurisdictions in AZ). 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 - Az County have the highest regulated facility density?
Within Navajo - Az County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Navajo - Az.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Navajo - Az County?
Across Navajo - Az County, 2 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 - Az County, AZ?
Geologic indoor air screening places Navajo - Az County in EPA Zone 3 — Low Potential (< 2.0 pCi/L). Counties in EPA Radon Zone 3 have a predicted average indoor radon level below 2.0 pCi/L, indicating lower regional geologic radon risk.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Navajo - Az County, AZ?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water Act NPDES permits, and 0 impaired water dischargers in Navajo - Az County, alongside 2 historical FEMA federal disaster declarations (1 flood/storm events).
Does Navajo - Az County, AZ have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Navajo - Az 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.