PUBLIC DATA SOURCE: U.S. EPA ECHO, FRS, RCRA, TRI & FEMA NFHL 3,230,651 Regulated Sites • All 50 States • Data as of November 02, 2026
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6-IN-1 MUNICIPAL ENVIRONMENTAL, WATER, SOIL & FLOOD HUB • DOWNEY, CA

Downey, California — Flood Zone, Tap Water Quality, Soil Foundation, Radon & EPA Hazards

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Public U.S. EPA records track 1,547 regulated facilities in Downey, California (Los Angeles County), including 2 High-Risk sites (0.1%) and 5 active violators. In addition to industrial waste, Downey properties are screened for Tap Water & Watershed Permits (105 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).

Total EPA Sites
1,547
High-Risk (0.1% vs 0.3% State)
2
Active Violators (0.3%)
5
Drinking & Clean Water
105
Federal Penalties
$39,000

Downey, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals

🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan
🌊 Flood Zone & FEMA Disaster History
Los Angeles County: 12 FEMA Declarations (5 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Status Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: LOW • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
6 SDWIS Systems • 99 NPDES Permits
🔒 46 Impaired Water (303d) & 11 Violation Dockets Locked
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☢️ EPA Radon & Karst Sinkhole
EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Downey, CA Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 02, 2026)
1. Municipal Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 1,463 (94.6%)
Clean Water (NPDES) & Drinking Water (SDWIS) 105 (6.8%)
Active EPA Non-Compliance Dockets 5 (0.3%)
High-Risk Enforcement Facilities 2 (0.1%)
2. FEMA NRI & USGS Hazard Index (1–10) Very High (100.0/100)
🌊 Flood Exposure 9/10 • Very High Hazard
🔥 Wildfire Hazard 9/10 • Very High Hazard
☀️ Extreme Heat 7/10 • High Hazard
🌪️ Severe Wind / Storm 7/10 • High Hazard
🫨 USGS Earthquake 9/10 • Very High Hazard
3. City vs. County & State Benchmark
Downey High-Risk Rate 0.1%
Los Angeles County Average 0.2%
California (CA) Statewide Avg 0.3%
Unlock Street-Level Dossier: Paid report reveals exact facility names, distances in feet, USDA soil LEP %, water table depth, and parcel flood zone.
🔒 Scan a Property Address in Downey →

ZIP Codes in Downey, CA

ZIP 90241 (754 sites • 0 High Risk) ZIP 90242 (514 sites • 2 High Risk) ZIP 90240 (282 sites • 0 High Risk) ZIP 92042 (4 sites • 0 High Risk) ZIP 90204 (4 sites • 0 High Risk) ZIP 90239 (3 sites • 0 High Risk) ZIP 92041 (3 sites • 0 High Risk) ZIP 90141 (1 sites • 0 High Risk) ZIP 90420 (1 sites • 0 High Risk) ZIP 90541 (1 sites • 0 High Risk)

Highest-Scored EPA Regulated Facilities in Downey, CA

100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).

Unlock Full Downey Dossier →
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 • DOWNEY, CA (ZIP 90242 Sector) HIGH (68/100) Significant Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • DOWNEY, CA (ZIP 90241 Sector) MODERATE (49/100) Violation Identified (1 qtrs NC) 🔒 1 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • DOWNEY, CA (ZIP 90241 Sector) MODERATE (36/100) Resolved / Historical Non-Compliance (6 qtrs NC) 🔒 6 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • DOWNEY, CA (ZIP 90241 Sector) MODERATE (34/100) Violation Identified (1 qtrs NC) 🔒 1 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • DOWNEY, CA (ZIP 90241 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • DOWNEY, CA (ZIP 90242 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • DOWNEY, CA (ZIP 90242 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • DOWNEY, CA (ZIP 90241 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
KAISER PERMANENTE DOWNEY MEDICAL CENTER FREE PREVIEW (LOW RISK) 9333 IMPERIAL HWY, DOWNEY, CA 90242 LOW (23/100) No Violation Identified (0 qtrs NC) $0
L G L TRANSPORTATION FREE PREVIEW (LOW RISK) 8855 GOLDEN ST, DOWNEY, CA 90242 LOW (17/100) No Violation Identified (0 qtrs NC) $0
EBUS, INC. FREE PREVIEW (LOW RISK) 9250 WASHBURN RD, DOWNEY, CA 90242 LOW (17/100) No Violation Identified (0 qtrs NC) $0
WELLS CAPITAL INVESTMENTS, LLC FREE PREVIEW (LOW RISK) 9020 TELEGRAPH RD, DOWNEY, CA 90240 LOW (17/100) No Violation Identified (0 qtrs NC) $0
🔒 + 1,535 Additional Regulated & Enforcement Records in Downey, CA Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Downey, California Environmental Risk & Radon

How many EPA-regulated facilities are in Downey, CA?

U.S. EPA records track 1,547 regulated facilities in Downey, California, including 2 high-risk sites (0.1%), 5 active violators (0.3%), and 1,463 RCRA hazardous waste handlers (94.6%).

Which ZIP codes in Downey, CA have the most EPA-tracked sites?

Within Downey, regulated facilities are primarily concentrated across ZIP 90241 (754 sites), ZIP 90242 (514 sites), ZIP 90240 (282 sites), ZIP 92042 (4 sites).

How can I check a specific house or commercial property in Downey, CA?

Enter the exact street address in Downey 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 Downey, CA and how many EPA water permits exist?

In Downey, CA, federal registries track 6 Safe Drinking Water (SDWIS) facilities, 99 Clean Water Act NPDES permits, and 46 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in Downey, CA?

USDA regional soil screening for Downey 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.

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