13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • WILLIAMSON COUNTY, TN

Williamson County, Tennessee — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in Williamson County, TN?

Public U.S. EPA records track 1 regulated facilities in Williamson County, Tennessee (Williamson County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Williamson County properties are screened for Tap Water & Watershed Permits (1 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 4 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites

1

High-Risk (0.0% vs 1.7% State)

0

Active Violators (0.0%)

0

Drinking & Clean Water

1

Federal Penalties

$0

Williamson County, TN 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

Williamson County: 4 FEMA Declarations (2 Flood/Storm)

🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Status Locked

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🪨 USDA Soil, Foundation & Water Table

Shrink-Swell Risk Signal: MODERATE • Pipe Corrosion: Moderate

🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked

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🚰 Tap Water (SDWIS) & PFAS Check

0 SDWIS Systems • 1 NPDES Permits

🔒 0 Impaired Water (303d) & 0 Violation Dockets Locked

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☢️ EPA Radon & Karst Sinkhole

EPA Zone 1 — High Potential (> 4.0 pCi/L)

Elevated Carbonate / Karst Sinkhole Belt — Monitor Foundation Settlement & Surface Depressions

🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Williamson County, TN 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) 1 (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 (85.1/100)

🌊 Flood Exposure 5/10 • Moderate Hazard

🔥 Wildfire Hazard 1/10 • Very Low Hazard

☀️ Extreme Heat 3/10 • Low Hazard

🌪️ Severe Wind / Storm 7/10 • High Hazard

🫨 USGS Earthquake 3/10 • Low Hazard

3. City vs. County & State Benchmark

Williamson County High-Risk Rate 0.0%

Williamson County Average 0.7%

Tennessee (TN) Statewide Avg 1.7%

Unlock Street-Level Dossier: Paid report reveals exact facility names, distances in feet, USDA soil LEP %, water table depth, and parcel flood zone.

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ZIP Codes in Williamson County, TN

Highest-Scored EPA Regulated Facilities in Williamson County, TN

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
COLUMBIA GULF TRANSMISSION FREE PREVIEW (LOW RISK)	UNKNOWN, WILLIAMSON COUNTY, TN 00000	LOW (12/100)	No Violation Identified (0 qtrs NC)	$0

Frequently Asked Questions — Williamson County, Tennessee Environmental Risk & Radon

How many EPA-regulated facilities are in Williamson County, TN?

U.S. EPA records track 1 regulated facilities in Williamson County, Tennessee, including 0 high-risk sites (0.0%), 0 active violators (0.0%), and 0 RCRA hazardous waste handlers (0.0%).

Which ZIP codes in Williamson County, TN have the most EPA-tracked sites?

Within Williamson County, regulated facilities are primarily concentrated across local postal codes.

How can I check a specific house or commercial property in Williamson County, TN?

Enter the exact street address in Williamson County 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 Williamson County, TN and how many EPA water permits exist?

In Williamson County, TN, federal registries track 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water Act NPDES permits, and 0 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in Williamson County, TN?

USDA regional soil screening for Williamson County indicates a MODERATE shrink-swell foundation signal, and Williamson 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.