Riverside County, Arizona — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Riverside County, AZ?
In Riverside County, Arizona, public U.S. EPA records track 5 regulated facilities (#47 of 47 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, 5 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).
Riverside 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📊 Riverside County, AZ Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Riverside County
ZIP Codes in Riverside County
Top EPA Regulated Facilities in Riverside 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 |
|---|---|---|---|---|
| MOUNTAIN VIEW RANCH - BLOCK D FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85040 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| ADOT - E US 60 - SHOW LOW-SPRINGERVILLE FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 86327 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| RUSSELL GULCH CHANNEL FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85284 | LOW (11/100) | No Violation Identified (0 qtrs NC) | $0 |
| 23448-01 CFD 4B EL TORO RD IMPROVEMENTS FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85233 | LOW (11/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • PHOENIX, AZ (ZIP 85085 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Riverside County, Arizona Environmental Due Diligence
How many EPA-regulated environmental sites are in Riverside County County, Arizona?
Public U.S. EPA records track 5 regulated facilities in Riverside County County, Arizona (ranking #47 of 47 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 Riverside County County have the highest regulated facility density?
Within Riverside County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Riverside County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Riverside County County?
Across Riverside 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 Riverside County County, AZ?
Geologic indoor air screening places Riverside 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 Riverside County County, AZ?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 5 Clean Water Act NPDES permits, and 1 impaired water dischargers in Riverside County County, alongside 22 historical FEMA federal disaster declarations (6 flood/storm events).
Does Riverside County, AZ have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Riverside 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.