St. Louis County, Arizona — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in St. Louis County, AZ?
In St. Louis County, Arizona, public U.S. EPA records track 9 regulated facilities (#37 of 37 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, 9 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).
St. Louis 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📊 St. Louis County, AZ Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in St. Louis County
ZIP Codes in St. Louis County
Top EPA Regulated Facilities in St. Louis 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 |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 63114 Sector) | MODERATE (30/100) | Violation Identified (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| PURSUIT PARK FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 63114 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| NEWPORT PARK 8-TEN FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85248 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| HAYDEN RD/ MILLER RD: PINNACLE PEAK RD TO HAPPY VALLEY RD FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 85258 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| YARDLY AT LAS BRISAS FREE PREVIEW (LOW RISK) | NO ADDRESS ON FILE, UNKNOWN, AZ 80202 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85745 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85282 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85009 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85254 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — St. Louis County, Arizona Environmental Due Diligence
How many EPA-regulated environmental sites are in St. Louis County County, Arizona?
Public U.S. EPA records track 9 regulated facilities in St. Louis County County, Arizona (ranking #37 of 37 jurisdictions in AZ). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (11.1%) have active non-compliance quarters.
Which ZIP codes and cities in St. Louis County County have the highest regulated facility density?
Within St. Louis County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including St. Louis County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in St. Louis County County?
Across St. Louis 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 St. Louis County County, AZ?
Geologic indoor air screening places St. Louis 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 St. Louis County County, AZ?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 9 Clean Water Act NPDES permits, and 0 impaired water dischargers in St. Louis County County, alongside 22 historical FEMA federal disaster declarations (6 flood/storm events).
Does St. Louis County, AZ have expansive clay soil or foundation risk?
USDA regional soil engineering screening for St. Louis 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.