ZIP 78642 (Liberty Hill, TX) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 78642 in Liberty Hill, Texas (Williamson County) has 390 EPA-tracked facilities, including 1 High-Risk sites (0.3%), 2 active violators, and $10,000 in federal penalties. Beyond industrial pollution, properties in ZIP 78642 are screened across 4 historical Williamson County FEMA disasters, USDA Soil Foundation Shrink-Swell (HIGH signal), Tap Water & Watershed Permits (382), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
ZIP 78642 (Liberty Hill, TX) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 78642 (Liberty Hill, TX) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 78642 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 1 High-Risk and 2 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 78642 (Liberty Hill, 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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | HIGH (64/100) | Violation Identified (8 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| RAYMOND ELROY FOUST TRUST DIRT AND LOAM FREE PREVIEW (LOW RISK) | 4450 RR 1869, LIBERTY HILL, TX 78642 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| RIO ANCHO FREE PREVIEW (LOW RISK) | 104 GREEN BRANCH CT, LIBERTY HILL, TX 78642 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| SAN GABRIEL RANCH WATER RESOURCE RECOVERY FACILITY FREE PREVIEW (LOW RISK) | APPROX 1.14 MI SW INTE HWY 29 & OLD HWY 29, LIBERTY HILL, TX 78642 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| AMS - ADVANCED MANUFACTURING SOLUTIONS FREE PREVIEW (LOW RISK) | 19600 W SH 29, LIBERTY HILL, TX 78642 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | LOW (17/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | LOW (16/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • LIBERTY HILL, TX (ZIP 78642 Sector) | LOW (16/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — ZIP 78642 (Liberty Hill, TX) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 78642 (Liberty Hill, TX)?
ZIP code 78642 (Liberty Hill, TX) contains 390 EPA-tracked facilities, of which 1 (0.3%) are classified in the High-Risk tier, 2 (0.5%) have active compliance violations, and 6 (1.5%) handle RCRA hazardous waste.
How does ZIP 78642 compare to Williamson County and Texas averages?
In ZIP 78642, 0.3% of regulated sites are rated High Risk, compared to 1.4% across Williamson County and 1.6% statewide in Texas.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 78642?
Geologic screening places ZIP 78642 in EPA Zone 3 — Low Potential (< 2.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 78642 (Liberty Hill, TX) in a FEMA flood zone and what is the flood disaster history?
Williamson County has recorded 4 historical FEMA federal disaster declarations (1 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 78642 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 78642 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 78642 indicates a HIGH shrink-swell risk signal. Within ZIP 78642, federal registries track 0 SDWIS drinking water facilities, 382 Clean Water NPDES permits, and 5 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.