Los Angeles County, California — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Los Angeles County, CA?
In Los Angeles County, California, public U.S. EPA records track 158,345 regulated facilities (#1 of 136 in California), including 254 (0.2%) High-Risk sites and $87,773,511 in federal penalties. Countywide due diligence also covers 356 Safe Drinking Water (SDWIS) facilities, 6,944 Clean Water NPDES permits, 12 FEMA Federal Disaster Declarations (5 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Los Angeles County, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Los Angeles County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Los Angeles County
ZIP Codes in Los Angeles County
Top EPA Regulated Facilities in Los Angeles County, 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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • LOS ANGELES, CA (ZIP 90058 Sector) | HIGH (94/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • LOS ANGELES, CA (ZIP 90061 Sector) | HIGH (88/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CASTAIC, CA (ZIP 91384 Sector) | HIGH (83/100) | Significant Violation (11 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • COMMERCE, CA (ZIP 90040 Sector) | HIGH (81/100) | Violation (6 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • WILMINGTON, CA (ZIP 90744 Sector) | HIGH (81/100) | Violation (9 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PLAYA DEL REY, CA (ZIP 90293 Sector) | HIGH (75/100) | Violation Identified (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • REDONDO BEACH, CA (ZIP 90277 Sector) | HIGH (74/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WILMINGTON, CA (ZIP 90744 Sector) | HIGH (73/100) | Violation Identified (9 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
Frequently Asked Questions — Los Angeles County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in Los Angeles County, California?
Public U.S. EPA records track 158,345 regulated facilities in Los Angeles County, California (ranking #1 of 136 jurisdictions in CA). Of those, 254 (0.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 207 (0.1%) have active non-compliance quarters.
Which ZIP codes and cities in Los Angeles County have the highest regulated facility density?
Within Los Angeles County, the highest concentrations of EPA-tracked facilities are located in ZIP 90670 (Santa Fe Springs, 2,188 sites), ZIP 90703 (Cerritos, 2,162 sites), ZIP 90275 (Rancho Palos Verdes, 1,878 sites), spanning municipal corridors including Los Angeles (30,276 sites), Long Beach (7,350 sites), Torrance (5,008 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Los Angeles County?
Across Los Angeles County, 156,435 facilities (98.8% 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 Los Angeles County, CA?
Geologic indoor air screening places Los Angeles County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Los Angeles County, CA?
Federal records track 356 Safe Drinking Water (SDWIS) facilities, 6,944 Clean Water Act NPDES permits, and 3,506 impaired water dischargers in Los Angeles County, alongside 12 historical FEMA federal disaster declarations (5 flood/storm events).
Does Los Angeles County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Los Angeles 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.