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13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • LOS ALTOS HILLS, CA

Los Altos Hills, California — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in Los Altos Hills, CA?

Public U.S. EPA records track 143 regulated facilities in Los Altos Hills, California (Santa Clara County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Los Altos Hills properties are screened for Tap Water & Watershed Permits (12 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 4 County FEMA Disaster Declarations, and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).

Total EPA Sites
143
High-Risk (0.0% vs 0.3% State)
0
Active Violators (0.0%)
0
Drinking & Clean Water
12
Federal Penalties
$0

Los Altos Hills, 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
Santa Clara County: 4 FEMA Declarations (4 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: MODERATE • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
1 SDWIS Systems • 11 NPDES Permits
🔒 0 Impaired Water (303d) & 1 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

📊 Los Altos Hills, CA Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)
1. Municipal Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 133 (93.0%)
Clean Water (NPDES) & Drinking Water (SDWIS) 12 (8.4%)
Active EPA Non-Compliance Dockets 0 (0.0%)
High-Risk Enforcement Facilities 0 (0.0%)
2. FEMA NRI & USGS Hazard Index (1–10) Very High (99.7/100)
🌊 Flood Exposure 9/10 • Very High Hazard
🔥 Wildfire Hazard 5/10 • Moderate Hazard
☀️ Extreme Heat 7/10 • High Hazard
🌪️ Severe Wind / Storm 3/10 • Low Hazard
🫨 USGS Earthquake 9/10 • Very High Hazard
3. City vs. County & State Benchmark
Los Altos Hills High-Risk Rate 0.0%
Santa Clara 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 Los Altos Hills →

ZIP Codes in Los Altos Hills, CA

Highest-Scored EPA Regulated Facilities in Los Altos Hills, 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 • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • LOS ALTOS HILLS, CA (ZIP 94022 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
CALIFORNIA WATER SERVICE COMPANY FREE PREVIEW (LOW RISK) LAT/LONG_USED, LOS ALTOS HILLS, CA 94022 LOW (17/100) No Violation Identified (0 qtrs NC) $0
SWEET CANYON JOINERY FREE PREVIEW (LOW RISK) 26790 TAAFFE RD, LOS ALTOS HILLS, CA 94022 LOW (16/100) No Violation Identified (0 qtrs NC) $0
COMCAST CABLE FREE PREVIEW (LOW RISK) 10779 MAGDALENA RD, LOS ALTOS HILLS, CA 94024 LOW (16/100) No Violation Identified (0 qtrs NC) $0
ROMAN CATHOLIC BISHOP OF SAN JOSE DBA ST SIMON FREE PREVIEW (LOW RISK) 12816 EL MONTE RD, LOS ALTOS HILLS, CA 94022 LOW (16/100) No Violation Identified (0 qtrs NC) $0
🔒 + 131 Additional Regulated & Enforcement Records in Los Altos Hills, CA Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Los Altos Hills, California Environmental Risk & Radon

How many EPA-regulated facilities are in Los Altos Hills, CA?

U.S. EPA records track 143 regulated facilities in Los Altos Hills, California, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 133 RCRA hazardous waste handlers (93.0%).

Which ZIP codes in Los Altos Hills, CA have the most EPA-tracked sites?

Within Los Altos Hills, regulated facilities are primarily concentrated across local postal codes.

How can I check a specific house or commercial property in Los Altos Hills, CA?

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

In Los Altos Hills, CA, federal registries track 1 Safe Drinking Water (SDWIS) facilities, 11 Clean Water Act NPDES permits, and 0 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in Los Altos Hills, CA?

USDA regional soil screening for Los Altos Hills indicates a MODERATE shrink-swell foundation signal, and Santa Clara County has recorded 4 federal FEMA disaster declarations (4 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.

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