13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • UNINCORPRATED JEFFERSON COUNTY, CO

Unincorprated Jefferson County, Colorado — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in Unincorprated Jefferson County, CO?

Public U.S. EPA records track 1 regulated facilities in Unincorprated Jefferson County, Colorado (Jefferson County), including 0 High-Risk sites (0.0%) and 0 active violators. In addition to industrial waste, Unincorprated Jefferson County properties are screened for Tap Water & Watershed Permits (1 systems), USDA Soil Foundation Shrink-Swell (MODERATE signal), 2 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites

1

High-Risk (0.0% vs 1.4% State)

0

Active Violators (0.0%)

0

Drinking & Clean Water

1

Federal Penalties

$0

Unincorprated Jefferson County, CO 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

Jefferson County: 2 FEMA Declarations (1 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: MODERATE • 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 • 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)

Low / Non-Karst Bedrock & Alluvial Formation

🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Unincorprated Jefferson County, CO 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 High (94.9/100)

🌊 Flood Exposure 7/10 • High Hazard

🔥 Wildfire Hazard 7/10 • High Hazard

☀️ Extreme Heat 3/10 • Low Hazard

🌪️ Severe Wind / Storm 7/10 • High Hazard

🫨 USGS Earthquake 2/10 • Low Seismic Hazard

3. City vs. County & State Benchmark

Unincorprated Jefferson County High-Risk Rate 0.0%

Jefferson County Average 1.1%

Colorado (CO) Statewide Avg 1.4%

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 Unincorprated Jefferson County, CO

Highest-Scored EPA Regulated Facilities in Unincorprated Jefferson County, CO

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
LYONS RIDGE/F-400 REINFORCEMENT FREE PREVIEW (LOW RISK)	W. BELLEVIEW AVE FROM SIMMS ST TO LYONS RIDGE RD, UNINCORPRATED JEFFERSON COUNTY, CO 80127	LOW (12/100)	No Violation Identified (0 qtrs NC)	$0

Frequently Asked Questions — Unincorprated Jefferson County, Colorado Environmental Risk & Radon

How many EPA-regulated facilities are in Unincorprated Jefferson County, CO?

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

Which ZIP codes in Unincorprated Jefferson County, CO have the most EPA-tracked sites?

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

How can I check a specific house or commercial property in Unincorprated Jefferson County, CO?

Enter the exact street address in Unincorprated Jefferson 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 Unincorprated Jefferson County, CO and how many EPA water permits exist?

In Unincorprated Jefferson County, CO, 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 Unincorprated Jefferson County, CO?

USDA regional soil screening for Unincorprated Jefferson County indicates a MODERATE shrink-swell foundation signal, and Jefferson County has recorded 2 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.