San Marcos, Texas — Property Hazard, Flood Zone, Soil, Water & Market Guide
What Are the Major Property, Flood, Soil & Environmental Risks in San Marcos, TX?
Public U.S. EPA records track 512 regulated facilities in San Marcos, Texas (Hays County), including 4 High-Risk sites (0.8%) and 7 active violators. In addition to industrial waste, San Marcos properties are screened for Tap Water & Watershed Permits (434 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 4 County FEMA Disaster Declarations, and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
San Marcos, TX 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 San Marcos, TX Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)ZIP Codes in San Marcos, TX
Highest-Scored EPA Regulated Facilities in San Marcos, 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 • SAN MARCOS, TX (ZIP 78666 Sector) | HIGH (83/100) | Significant Violation (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • SAN MARCOS, TX (ZIP 78666 Sector) | HIGH (64/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SAN MARCOS, TX (ZIP 78666 Sector) | HIGH (64/100) | Significant Violation (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • SAN MARCOS, TX (ZIP 78666 Sector) | MODERATE (50/100) | Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SAN MARCOS, TX (ZIP 78666 Sector) | MODERATE (42/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SAN MARCOS, TX (ZIP 78640 Sector) | MODERATE (35/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SAN MARCOS, TX (ZIP 78666 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SAN MARCOS, TX (ZIP 78666 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| PARKVIEW METAL PRODUCTS FREE PREVIEW (LOW RISK) | 400 BARNES DR., SAN MARCOS, TX 78666 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| RS USED OIL SERVICES INC FREE PREVIEW (LOW RISK) | 2061 CLOVIS BARKER DRIVE, SAN MARCOS, TX 78666 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| ELECTROSOURCE FREE PREVIEW (LOW RISK) | 2809 IH-35 S, SAN MARCOS, TX 78666 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| CFAN FREE PREVIEW (LOW RISK) | 1000 TECHNOLOGY WAY, SAN MARCOS, TX 78666 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — San Marcos, Texas Environmental Risk & Radon
How many EPA-regulated facilities are in San Marcos, TX?
U.S. EPA records track 512 regulated facilities in San Marcos, Texas, including 4 high-risk sites (0.8%), 7 active violators (1.4%), and 78 RCRA hazardous waste handlers (15.2%).
Which ZIP codes in San Marcos, TX have the most EPA-tracked sites?
Within San Marcos, regulated facilities are primarily concentrated across ZIP 78666 (501 sites), ZIP 78667 (4 sites), ZIP 78166 (1 sites).
How can I check a specific house or commercial property in San Marcos, TX?
Enter the exact street address in San Marcos 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, TX and how many EPA water permits exist?
In San Marcos, TX, federal registries track 7 Safe Drinking Water (SDWIS) facilities, 427 Clean Water Act NPDES permits, and 19 impaired water body dischargers.
What is the soil foundation risk and FEMA flood disaster history in San Marcos, TX?
USDA regional soil screening for San Marcos indicates a MODERATE shrink-swell foundation signal, and Hays County has recorded 4 federal FEMA disaster declarations (1 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.