Spokane County, Arizona — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
In Spokane County, Arizona, public U.S. EPA records track 4 regulated facilities (#56 of 56 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, 4 Clean Water NPDES permits, 22 FEMA Federal Disaster Declarations (6 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Spokane 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📊 Spokane County, AZ Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)Municipalities in Spokane County
ZIP Codes in Spokane County
Top EPA Regulated Facilities in Spokane 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 |
|---|---|---|---|---|
| SUNSET VISTA RESERVOIR & BOOSTER PUMP STATION FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85043 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| COPPER CROSSING ENERGY RESOURCE CENER FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 99202 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| SPROUTS FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85714 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| SWG – ALAMAR SIMP EL MIRAGE RD TO BUCKEYE RD FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85072 | LOW (11/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Spokane County, Arizona Environmental Due Diligence
How many EPA-regulated environmental sites are in Spokane County County, Arizona?
Public U.S. EPA records track 4 regulated facilities in Spokane County County, Arizona (ranking #56 of 56 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 Spokane County County have the highest regulated facility density?
Within Spokane County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Spokane County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Spokane County County?
Across Spokane County County, 0 facilities (0.0% 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 Spokane County County, AZ?
Geologic indoor air screening places Spokane County 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 Spokane County County, AZ?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 4 Clean Water Act NPDES permits, and 0 impaired water dischargers in Spokane County County, alongside 22 historical FEMA federal disaster declarations (6 flood/storm events).
Does Spokane County, AZ have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Spokane County indicates a LOW 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.