Mount Wilson, California — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Mount Wilson, CA?
Public U.S. EPA records track 21 regulated facilities in Mount Wilson, California (Los Angeles County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Mount Wilson properties are screened for Tap Water & Watershed Permits (0 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 12 County FEMA Disaster Declarations, and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Mount Wilson, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Mount Wilson, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)ZIP Codes in Mount Wilson, CA
Highest-Scored EPA Regulated Facilities in Mount Wilson, CA
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 • MOUNT WILSON, CA (ZIP 91023 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MOUNT WILSON, CA (ZIP 91023 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • MOUNT WILSON, CA (ZIP 91001 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MOUNT WILSON, CA (ZIP 91023 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MOUNT WILSON, CA (ZIP 91023 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MOUNT WILSON, CA (ZIP 91023 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • MOUNT WILSON, CA (ZIP 90001 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| KWHY TRANSMITTER SITE FREE PREVIEW (LOW RISK) | 22 VIDEO ROAD, MOUNT WILSON, CA 91023 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| ATC WATERTOWN LLC (282688 - MT. WILSON - LA CANADA CA) FREE PREVIEW (LOW RISK) | 1600 WEATHERVANE, 1 MT WILSON RD, MOUNT WILSON, CA 91023 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| FOX 11 KTTV LOS ANGELES FREE PREVIEW (LOW RISK) | 31 MOUNT WILSON RD, MOUNT WILSON, CA 91023 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| KTLA-TV, NEXSTAR MEDIA GROUP FREE PREVIEW (LOW RISK) | 11 WEATHERVANE DRIVE, MOUNT WILSON, CA 91023 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • MOUNT WILSON, CA (ZIP 91023 Sector) | LOW (16/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — Mount Wilson, California Environmental Risk & Radon
How many EPA-regulated facilities are in Mount Wilson, CA?
U.S. EPA records track 21 regulated facilities in Mount Wilson, California, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 21 RCRA hazardous waste handlers (100.0%).
Which ZIP codes in Mount Wilson, CA have the most EPA-tracked sites?
Within Mount Wilson, regulated facilities are primarily concentrated across local postal codes.
How can I check a specific house or commercial property in Mount Wilson, CA?
Enter the exact street address in Mount Wilson into the FullPropertyReport radius scanner to screen all EPA ECHO, FRS, RCRA, TRI, USDA soil foundation shrink-swell, drinking water (SDWIS), FEMA flood zone, and county radon records within 0.5 to 3.0 miles.
Is tap water safe in Mount Wilson, CA and how many EPA water permits exist?
In Mount Wilson, CA, federal registries track 0 Safe Drinking Water (SDWIS) facilities, 0 Clean Water Act NPDES permits, and 0 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Mount Wilson, CA?
USDA regional soil screening for Mount Wilson indicates a LOW shrink-swell foundation signal, and Los Angeles County has recorded 12 federal FEMA disaster declarations (5 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.