St. Clair County, Texas — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in St. Clair County, TX?
In St. Clair County, Texas, public U.S. EPA records track 1 regulated facilities (#525 of 525 in Texas), including 0 (0.0%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water NPDES permits, 32 FEMA Federal Disaster Declarations (7 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
St. Clair County, TX 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 St. Clair County, TX Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in St. Clair County
ZIP Codes in St. Clair County
Top EPA Regulated Facilities in St. Clair County, TX
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 |
|---|---|---|---|---|
| VECTOR PIPELINE-ST CLAIR FREE PREVIEW (LOW RISK) | 5400 WESTHEIMER CT, HOUSTON, TX 77056 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — St. Clair County, Texas Environmental Due Diligence
How many EPA-regulated environmental sites are in St. Clair County County, Texas?
Public U.S. EPA records track 1 regulated facilities in St. Clair County County, Texas (ranking #525 of 525 jurisdictions in TX). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in St. Clair County County have the highest regulated facility density?
Within St. Clair County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including St. Clair County.
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in St. Clair County County?
Across St. Clair County County, 0 facilities (0.0% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for St. Clair County County, TX?
Geologic indoor air screening places St. Clair County County in EPA Zone 3 — Low Potential (< 2.0 pCi/L). Counties in EPA Radon Zone 3 have a predicted average indoor radon level below 2.0 pCi/L, indicating lower regional geologic radon risk.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in St. Clair County County, TX?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water Act NPDES permits, and 1 impaired water dischargers in St. Clair County County, alongside 32 historical FEMA federal disaster declarations (7 flood/storm events).
Does St. Clair County, TX have expansive clay soil or foundation risk?
USDA regional soil engineering screening for St. Clair County indicates a HIGH shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.