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13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • SAN MARCOS ETJ, TX

San Marcos Etj, Texas — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in San Marcos Etj, TX?

Public U.S. EPA records track 2 regulated facilities in San Marcos Etj, Texas (Guadalupe County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, San Marcos Etj properties are screened for Tap Water & Watershed Permits (2 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 4 County FEMA Disaster Declarations, and EPA Zone 3 — Low Potential (< 2.0 pCi/L).

Total EPA Sites
2
High-Risk (0.0% vs 1.6% State)
0
Active Violators (0.0%)
0
Drinking & Clean Water
2
Federal Penalties
$0

San Marcos Etj, TX 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals

🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan
🌊 Flood Zone & FEMA Disaster History
Guadalupe County: 4 FEMA Declarations (2 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Status Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: LOW • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
0 SDWIS Systems • 2 NPDES Permits
🔒 0 Impaired Water (303d) & 0 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 3 — Low Potential (< 2.0 pCi/L)
Non-Karst Coastal / Alluvial Clay Formation (Low Sinkhole Risk; Primary Factor is Clay Shrink-Swell)
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 San Marcos Etj, TX Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)
1. Municipal Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 0 (0.0%)
Clean Water (NPDES) & Drinking Water (SDWIS) 2 (100.0%)
Active EPA Non-Compliance Dockets 0 (0.0%)
High-Risk Enforcement Facilities 0 (0.0%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Moderate (91.5/100)
🌊 Flood Exposure 7/10 • High Hazard
🔥 Wildfire Hazard 3/10 • Low Hazard
☀️ Extreme Heat 5/10 • Moderate Hazard
🌪️ Severe Wind / Storm 7/10 • High Hazard
🫨 USGS Earthquake 2/10 • Low Seismic Hazard
3. City vs. County & State Benchmark
San Marcos Etj High-Risk Rate 0.0%
Guadalupe County Average 0.9%
Texas (TX) Statewide Avg 1.6%
Unlock Street-Level Dossier: Paid report reveals exact facility names, distances in feet, USDA soil LEP %, water table depth, and parcel flood zone.
🔒 Scan a Property Address in San Marcos Etj →

ZIP Codes in San Marcos Etj, TX

Highest-Scored EPA Regulated Facilities in San Marcos Etj, TX

100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).

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Facility Name / Hazard Type Sector Location (Street Redacted) Risk Tier & Score Compliance Status Enforcement / Unlock
HUNTER POSEY BUSINESS PARK FREE PREVIEW (LOW RISK) SEC OF POSEY RD. AND HUNTER RD., SAN MARCOS ETJ, TX 78666 LOW (13/100) No Violation Identified (0 qtrs NC) $0
16910 SH 123S17070 SH 123S LT 1 BUSINESS PRKLT 1 DENMAN FREE PREVIEW (LOW RISK) STATE HWY. 123 AND LOVELADY LN., SAN MARCOS ETJ, TX 78666 LOW (12/100) No Violation Identified (0 qtrs NC) $0

Frequently Asked Questions — San Marcos Etj, Texas Environmental Risk & Radon

How many EPA-regulated facilities are in San Marcos Etj, TX?

U.S. EPA records track 2 regulated facilities in San Marcos Etj, Texas, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 0 RCRA hazardous waste handlers (0.0%).

Which ZIP codes in San Marcos Etj, TX have the most EPA-tracked sites?

Within San Marcos Etj, regulated facilities are primarily concentrated across local postal codes.

How can I check a specific house or commercial property in San Marcos Etj, TX?

Enter the exact street address in San Marcos Etj 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 San Marcos Etj, TX and how many EPA water permits exist?

In San Marcos Etj, TX, federal registries track 0 Safe Drinking Water (SDWIS) facilities, 2 Clean Water Act NPDES permits, and 0 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in San Marcos Etj, TX?

USDA regional soil screening for San Marcos Etj indicates a LOW shrink-swell foundation signal, and Guadalupe County has recorded 4 federal FEMA disaster declarations (2 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.

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