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13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • SAN DIMAS, CA

San Dimas, California — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in San Dimas, CA?

Public U.S. EPA records track 830 regulated facilities in San Dimas, California (Los Angeles County), including 0 High-Risk sites (0.0%) and 1 active violators. In addition to industrial waste, San Dimas properties are screened for Tap Water & Watershed Permits (47 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
830
High-Risk (0.0% vs 0.3% State)
0
Active Violators (0.1%)
1
Drinking & Clean Water
47
Federal Penalties
$0

San Dimas, 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 • 41 NPDES Permits
🔒 12 Impaired Water (303d) & 4 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ 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

📊 San Dimas, CA Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)
1. Municipal Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 789 (95.1%)
Clean Water (NPDES) & Drinking Water (SDWIS) 47 (5.7%)
Active EPA Non-Compliance Dockets 1 (0.1%)
High-Risk Enforcement Facilities 0 (0.0%)
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
San Dimas High-Risk Rate 0.0%
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 San Dimas →

ZIP Codes in San Dimas, CA

ZIP 91773 (814 sites • 0 High Risk) ZIP 90853 (1 sites • 0 High Risk)

Highest-Scored EPA Regulated Facilities in San Dimas, CA

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

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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 • SAN DIMAS, CA (ZIP 91773 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • SAN DIMAS, CA (ZIP 91773 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • SAN DIMAS, CA (ZIP 90853 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • SAN DIMAS, CA (ZIP 91773 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • SAN DIMAS, CA (ZIP 91773 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • SAN DIMAS, CA (ZIP 91773 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • SAN DIMAS, CA (ZIP 91773 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • SAN DIMAS, CA (ZIP 91773 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
SAAM CORP DBA VERTEX DIAMOND TOOL FREE PREVIEW (LOW RISK) 940 W CIENEGA AVE, SAN DIMAS, CA 91773 LOW (20/100) No Violation Identified (0 qtrs NC) $0
O'NEILL TUBE & REEL INC FREE PREVIEW (LOW RISK) 611 W TERRACE DR, SAN DIMAS, CA 91773 LOW (17/100) No Violation Identified (0 qtrs NC) $0
FADIFORNIA INC. FREE PREVIEW (LOW RISK) LAT/LONG_USED, SAN DIMAS, CA 91773 LOW (17/100) No Violation Identified (0 qtrs NC) $0
CERTIFIED TIRE & SERVICE CENTER SAN DIMAS FREE PREVIEW (LOW RISK) 100 W BONITA AVE, SAN DIMAS, CA 91773 LOW (16/100) No Violation Identified (0 qtrs NC) $0
🔒 + 818 Additional Regulated & Enforcement Records in San Dimas, CA Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — San Dimas, California Environmental Risk & Radon

How many EPA-regulated facilities are in San Dimas, CA?

U.S. EPA records track 830 regulated facilities in San Dimas, California, including 0 high-risk sites (0.0%), 1 active violators (0.1%), and 789 RCRA hazardous waste handlers (95.1%).

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

Within San Dimas, regulated facilities are primarily concentrated across ZIP 91773 (814 sites), ZIP 90853 (1 sites).

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

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

In San Dimas, CA, federal registries track 6 Safe Drinking Water (SDWIS) facilities, 41 Clean Water Act NPDES permits, and 12 impaired water body dischargers.

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

USDA regional soil screening for San Dimas 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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