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13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • ROWLAND HEIGHTS, CA

Rowland Heights, California — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in Rowland Heights, CA?

Public U.S. EPA records track 706 regulated facilities in Rowland Heights, California (Los Angeles County), including 3 High-Risk sites (0.4%) and 1 active violators. In addition to industrial waste, Rowland Heights properties are screened for Tap Water & Watershed Permits (24 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
706
High-Risk (0.4% vs 0.3% State)
3
Active Violators (0.1%)
1
Drinking & Clean Water
24
Federal Penalties
$22,990

Rowland Heights, 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
1 SDWIS Systems • 23 NPDES Permits
🔒 6 Impaired Water (303d) & 4 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

📊 Rowland Heights, 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 676 (95.8%)
Clean Water (NPDES) & Drinking Water (SDWIS) 24 (3.4%)
Active EPA Non-Compliance Dockets 1 (0.1%)
High-Risk Enforcement Facilities 3 (0.4%)
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
Rowland Heights High-Risk Rate 0.4%
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 Rowland Heights →

ZIP Codes in Rowland Heights, CA

ZIP 91748 (1,083 sites • 4 High Risk) ZIP 91747 (11 sites • 0 High Risk) ZIP 71748 (1 sites • 0 High Risk)

Highest-Scored EPA Regulated Facilities in Rowland Heights, 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 • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (36/100) Resolved / Historical Non-Compliance (4 qtrs NC) 🔒 4 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (34/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • ROWLAND HEIGHTS, CA (ZIP 91748 Sector) MODERATE (33/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
AJAX HARDWARE CORP FREE PREVIEW (LOW RISK) 825 S AJAX AVE, ROWLAND HEIGHTS, CA 91748 LOW (24/100) No Violation Identified (0 qtrs NC) $0
SNAPEDGE INC FREE PREVIEW (LOW RISK) 1032 SOUTH LAWSON STREET, ROWLAND HEIGHTS, CA 91748 LOW (17/100) No Violation Identified (0 qtrs NC) $0
A W AUTO INC FREE PREVIEW (LOW RISK) 19237 E WALNUT DR N, ROWLAND HEIGHTS, CA 91748 LOW (17/100) No Violation Identified (0 qtrs NC) $0
CVS PHARMACY #16058 FREE PREVIEW (LOW RISK) 17751 COLIMA RD STE B, ROWLAND HEIGHTS, CA 02895 LOW (17/100) No Violation Identified (0 qtrs NC) $0
🔒 + 694 Additional Regulated & Enforcement Records in Rowland Heights, CA Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Rowland Heights, California Environmental Risk & Radon

How many EPA-regulated facilities are in Rowland Heights, CA?

U.S. EPA records track 706 regulated facilities in Rowland Heights, California, including 3 high-risk sites (0.4%), 1 active violators (0.1%), and 676 RCRA hazardous waste handlers (95.8%).

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

Within Rowland Heights, regulated facilities are primarily concentrated across ZIP 91748 (1,083 sites), ZIP 91747 (11 sites), ZIP 71748 (1 sites).

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

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

In Rowland Heights, CA, federal registries track 1 Safe Drinking Water (SDWIS) facilities, 23 Clean Water Act NPDES permits, and 6 impaired water body dischargers.

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

USDA regional soil screening for Rowland Heights 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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