Rockwall County, Texas — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Rockwall County, TX?
In Rockwall County, Texas, public U.S. EPA records track 444 regulated facilities (#66 of 469 in Texas), including 6 (1.4%) High-Risk sites and $450,315 in federal penalties. Countywide due diligence also covers 9 Safe Drinking Water (SDWIS) facilities, 769 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Rockwall 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📊 Rockwall County, TX Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Rockwall County
ZIP Codes in Rockwall County
Top EPA Regulated Facilities in Rockwall 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 |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • COMO, TX (ZIP 75431 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ROYSE CITY, TX (ZIP 75189 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ROCKWALL, TX (ZIP 75087 Sector) | MODERATE (43/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • WYLIE, TX (ZIP 75098 Sector) | MODERATE (39/100) | Violation Identified (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • CITY OF ROYSE CITY, TX (ZIP 75189 Sector) | MODERATE (35/100) | Violation Identified (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ROCKWALL, TX (ZIP 75087 Sector) | MODERATE (35/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ROYSE CITY, TX (ZIP 75189 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ROCKWALL, TX (ZIP 75032 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| WALMART SUPERCENTER 259 FREE PREVIEW (LOW RISK) | 782 INTERSTATE 30, ROCKWALL, TX 75087 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| BELLS PLATING FREE PREVIEW (LOW RISK) | 1115 INDUSTRIAL DR, ROYSE CITY, TX 75189 | LOW (20/100) | No Violation Identified (0 qtrs NC) | $0 |
| CHECKMATE CASUALS INC FREE PREVIEW (LOW RISK) | 2003 INDUSTRIAL BLVD, ROCKWALL, TX 75087 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| QUALITY COATING PRODUCTS INC FREE PREVIEW (LOW RISK) | 2001 INDUSTRIAL BLVD, ROCKWALL, TX 75087 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Rockwall County, Texas Environmental Due Diligence
How many EPA-regulated environmental sites are in Rockwall County, Texas?
Public U.S. EPA records track 444 regulated facilities in Rockwall County, Texas (ranking #66 of 469 jurisdictions in TX). Of those, 6 (1.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 9 (2.0%) have active non-compliance quarters.
Which ZIP codes and cities in Rockwall County have the highest regulated facility density?
Within Rockwall County, the highest concentrations of EPA-tracked facilities are located in ZIP 75032 (Rockwall, 288 sites), ZIP 78189 (Royse City, 1 sites), spanning municipal corridors including Rockwall (369 sites), Mclendonchisholm (32 sites), Mclendon Chisholm (13 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Rockwall County?
Across Rockwall County, 64 facilities (14.4% 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 Rockwall County, TX?
Geologic indoor air screening places Rockwall 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 Rockwall County, TX?
Federal records track 9 Safe Drinking Water (SDWIS) facilities, 769 Clean Water Act NPDES permits, and 0 impaired water dischargers in Rockwall County, alongside 3 historical FEMA federal disaster declarations (1 flood/storm events).
Does Rockwall County, TX have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Rockwall 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.