Castro Valley, California — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in Castro Valley, CA?
Public U.S. EPA records track 973 regulated facilities in Castro Valley, California (Alameda County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Castro Valley properties are screened for Tap Water & Watershed Permits (32 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 3 County FEMA Disaster Declarations, and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Castro Valley, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Castro Valley, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)ZIP Codes in Castro Valley, CA
Highest-Scored EPA Regulated Facilities in Castro Valley, 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 • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • CASTRO VALLEY, CA (ZIP 94546 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| DRIVEN AUTO CARE CASTRO VALLEY FREE PREVIEW (LOW RISK) | 2769 CASTRO VALLEY BLVD, CASTRO VALLEY, CA 94546 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| SHERWIN-WILLIAMS CO THE FREE PREVIEW (LOW RISK) | 20650 REDWOOD RD, CASTRO VALLEY, CA 94546 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| DRYCLEANER THE FREE PREVIEW (LOW RISK) | 3300 E CASTRO VALLEY BLVD NO F, CASTRO VALLEY, CA 94552 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| CANYON MIDDLE SCHOOL FREE PREVIEW (LOW RISK) | 19600 CULL CANYON RD., CASTRO VALLEY, CA 94552 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Castro Valley, California Environmental Risk & Radon
How many EPA-regulated facilities are in Castro Valley, CA?
U.S. EPA records track 973 regulated facilities in Castro Valley, California, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 941 RCRA hazardous waste handlers (96.7%).
Which ZIP codes in Castro Valley, CA have the most EPA-tracked sites?
Within Castro Valley, regulated facilities are primarily concentrated across ZIP 94546 (882 sites), ZIP 94552 (101 sites), ZIP 94522 (9 sites).
How can I check a specific house or commercial property in Castro Valley, CA?
Enter the exact street address in Castro Valley 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 Castro Valley, CA and how many EPA water permits exist?
In Castro Valley, CA, federal registries track 1 Safe Drinking Water (SDWIS) facilities, 31 Clean Water Act NPDES permits, and 7 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in Castro Valley, CA?
USDA regional soil screening for Castro Valley indicates a LOW shrink-swell foundation signal, and Alameda County has recorded 3 federal FEMA disaster declarations (3 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.