13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • KNOB, AR

Knob, Arkansas — Property Hazard, Flood Zone, Soil, Water & Market Guide

Q: How many EPA-regulated facilities are in Knob, AR?

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

Q: Which ZIP codes in Knob, AR have the most EPA-tracked sites?

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

Q: How can I check a specific house or commercial property in Knob, AR?

Enter the exact street address in Knob 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.

Q: Is tap water safe in Knob, AR and how many EPA water permits exist?

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

Q: What is the soil foundation risk and FEMA flood disaster history in Knob, AR?

USDA regional soil screening for Knob indicates a MODERATE shrink-swell foundation signal, and Clay County has recorded 3 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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What Are the Major Property, Flood, Soil & Environmental Risks in Knob, AR?

Public U.S. EPA records track 1 regulated facilities in Knob, Arkansas (Clay County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Knob properties are screened for Tap Water & Watershed Permits (1 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 3 County FEMA Disaster Declarations, and EPA Zone 3 — Low Potential (< 2.0 pCi/L).

Total EPA Sites

1

High-Risk (0.0% vs 3.1% State)

0

Active Violators (0.0%)

0

Drinking & Clean Water

1

Federal Penalties

$0

Knob, AR 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

Clay County: 3 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: High

🔒 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 3 — Low Potential (< 2.0 pCi/L)

Low / Non-Karst Bedrock & Alluvial Formation

🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Knob, AR Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 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 Low (71.6/100)

🌊 Flood Exposure 3/10 • Low Hazard

🔥 Wildfire Hazard 1/10 • Very Low Hazard

☀️ Extreme Heat 5/10 • Moderate Hazard

🌪️ Severe Wind / Storm 5/10 • Moderate Hazard

🫨 USGS Earthquake 5/10 • Moderate Hazard

3. City vs. County & State Benchmark

Knob High-Risk Rate 0.0%

Clay County Average 1.8%

Arkansas (AR) Statewide Avg 3.1%

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 Knob, AR

Highest-Scored EPA Regulated Facilities in Knob, AR

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
ARDOT - 101120 - HWY. 141 STRS. & APPRS. (S) FREE PREVIEW (LOW RISK)	TRAVEL SOUTH FROM HWY 90 ALONG HWY 141 FOR .08 MI, KNOB, AR 72010	LOW (11/100)	No Violation Identified (0 qtrs NC)	$0

Frequently Asked Questions — Knob, Arkansas Environmental Risk & Radon

How many EPA-regulated facilities are in Knob, AR?

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

Which ZIP codes in Knob, AR have the most EPA-tracked sites?

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

How can I check a specific house or commercial property in Knob, AR?

Enter the exact street address in Knob 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 Knob, AR and how many EPA water permits exist?

In Knob, AR, 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 Knob, AR?

USDA regional soil screening for Knob indicates a MODERATE shrink-swell foundation signal, and Clay County has recorded 3 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.