ZIP 85251 (Unknown, AZ) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 85251 in Unknown, Arizona (Maricopa County) has 212 EPA-tracked facilities, including 0 High-Risk sites (0.0%), 3 active violators, and $300 in federal penalties. Beyond industrial pollution, properties in ZIP 85251 are screened across 3 historical Maricopa County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (104), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 85251 (Unknown, AZ) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 85251 (Unknown, AZ) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 85251 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 0 High-Risk and 3 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 85251 (Unknown, 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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85251 Sector) | MODERATE (35/100) | Violation Identified (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85251 Sector) | MODERATE (32/100) | Violation Identified (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SCOTTSDALE, AZ (ZIP 85251 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SCOTTSDALE, AZ (ZIP 85251 Sector) | MODERATE (30/100) | Violation Identified (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85251 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • UNKNOWN, AZ (ZIP 85251 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SCOTTSDALE, AZ (ZIP 85251 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SCOTTSDALE, AZ (ZIP 85251 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| THE PHOENICIAN RESORT FREE PREVIEW (LOW RISK) | 6000 EAST CAMELBACK RD, SCOTTSDALE, AZ 85251 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| MICROSEMI FREE PREVIEW (LOW RISK) | 8700 E THOMAS RD, SCOTTSDALE, AZ 85251 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| PEP BOYS #6472 FREE PREVIEW (LOW RISK) | 6828 E THOMAS RD, SCOTTSDALE, AZ 85251 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| PARCEL 130-13-034 FREE PREVIEW (LOW RISK) | 3616 N SCOTTSDALE RD, SCOTTSDALE, AZ 85251 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 85251 (Unknown, AZ) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 85251 (Unknown, AZ)?
ZIP code 85251 (Unknown, AZ) contains 212 EPA-tracked facilities, of which 0 (0.0%) are classified in the High-Risk tier, 3 (1.4%) have active compliance violations, and 103 (48.6%) handle RCRA hazardous waste.
How does ZIP 85251 compare to Maricopa County and Arizona averages?
In ZIP 85251, 0.0% of regulated sites are rated High Risk, compared to 0.6% across Maricopa County and 0.9% statewide in Arizona.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 85251?
Geologic screening places ZIP 85251 in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 85251 (Unknown, AZ) in a FEMA flood zone and what is the flood disaster history?
Maricopa County has recorded 3 historical FEMA federal disaster declarations (0 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 85251 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 85251 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 85251 indicates a MODERATE shrink-swell risk signal. Within ZIP 85251, federal registries track 1 SDWIS drinking water facilities, 103 Clean Water NPDES permits, and 6 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.