Signal Hill, California — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Signal Hill, CA?
Public U.S. EPA records track 525 regulated facilities in Signal Hill, California (Los Angeles County), including 3 High-Risk sites (0.6%) and 4 active violators. In addition to industrial waste, Signal Hill properties are screened for Tap Water & Watershed Permits (45 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).
Signal Hill, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Signal Hill, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)ZIP Codes in Signal Hill, CA
Highest-Scored EPA Regulated Facilities in Signal Hill, 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 Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (50/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (45/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (44/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (42/100) | Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (34/100) | Unknown (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (33/100) | Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SIGNAL HILL, CA (ZIP 90755 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| LB WALKER AUTOMOTIVE FREE PREVIEW (LOW RISK) | 1000 E WARDLOW RD STE A, SIGNAL HILL, CA 90755 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| CLINTS WELDING FREE PREVIEW (LOW RISK) | 2468 LEMON, SIGNAL HILL, CA 90806 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| STERLING ANALYTICAL LABORATORY FREE PREVIEW (LOW RISK) | 2860 WALNUT AVE, SIGNAL HILL, CA 98086 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| C. E. ALLENCOMPANY, INC. DBA: ALLENCO FREE PREVIEW (LOW RISK) | 983 E. PATTERSON STREET, SIGNAL HILL, CA 90755 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Signal Hill, California Environmental Risk & Radon
How many EPA-regulated facilities are in Signal Hill, CA?
U.S. EPA records track 525 regulated facilities in Signal Hill, California, including 3 high-risk sites (0.6%), 4 active violators (0.8%), and 487 RCRA hazardous waste handlers (92.8%).
Which ZIP codes in Signal Hill, CA have the most EPA-tracked sites?
Within Signal Hill, regulated facilities are primarily concentrated across ZIP 90806 (700 sites), ZIP 90755 (446 sites), ZIP 98086 (1 sites), ZIP 90577 (1 sites).
How can I check a specific house or commercial property in Signal Hill, CA?
Enter the exact street address in Signal Hill 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 Signal Hill, CA and how many EPA water permits exist?
In Signal Hill, CA, federal registries track 1 Safe Drinking Water (SDWIS) facilities, 44 Clean Water Act NPDES permits, and 34 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Signal Hill, CA?
USDA regional soil screening for Signal Hill 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.