Douglas County, Colorado — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Douglas County, CO?
In Douglas County, Colorado, public U.S. EPA records track 55 regulated facilities (#74 of 108 in Colorado), including 2 (3.6%) High-Risk sites and $26,185 in federal penalties. Countywide due diligence also covers 1 Safe Drinking Water (SDWIS) facilities, 25 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Douglas 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📊 Douglas County, CO Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Douglas County
ZIP Codes in Douglas County
Top EPA Regulated Facilities in Douglas 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).
| 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 • LARKSPUR, CO (ZIP 80118 Sector) | HIGH (64/100) | Significant Violation (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ENGLEWOOD, CO (ZIP 80112 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • CASTLE ROCK, CO (ZIP 80104 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ENGLEWOOD, CO (ZIP 80112 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • LITTLETON, CO (ZIP 80125 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • LITTLETON, CO (ZIP 80125 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • LITTLETON, CO (ZIP 80125 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • CASTLE ROCK, CO (ZIP 80108 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| CIRCLE K WILCOX FREE PREVIEW (LOW RISK) | 310 SOUTH WILCOX STREET, CASTLE ROCK, CO 80111 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| MEADOWS FIL 17 AREA 4 - WATERLINE PHASE 1 FREE PREVIEW (LOW RISK) | NORTH OF INTERSECTION OF LIMELIGHT AVE & VIRTUOSO, CASTLE ROCK, CO 80109 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| PERRY PARK WATER AND SANITATION DISTRICT FREE PREVIEW (LOW RISK) | 5676 W RED ROCK DR, LARKSPUR, CO 80118 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| ROBERT BOARDMAN PROPERTY FREE PREVIEW (LOW RISK) | 9138 SPRUCE MOUNTAIN ROAD, LARKSPUR, CO 80118 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Douglas County, Colorado Environmental Due Diligence
How many EPA-regulated environmental sites are in Douglas County County, Colorado?
Public U.S. EPA records track 55 regulated facilities in Douglas County County, Colorado (ranking #74 of 108 jurisdictions in CO). Of those, 2 (3.6%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 1 (1.8%) have active non-compliance quarters.
Which ZIP codes and cities in Douglas County County have the highest regulated facility density?
Within Douglas County County, the highest concentrations of EPA-tracked facilities are located in local postal sectors, spanning municipal corridors including Castle Rock Area (9 sites), City Of Lone Tree (3 sites), Castle Rock, 4.9 Mi Nw Of (1 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Douglas County County?
Across Douglas County County, 2 facilities (3.6% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).
What is the EPA Radon Zone classification for Douglas County County, CO?
Geologic indoor air screening places Douglas County County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Douglas County County, CO?
Federal records track 1 Safe Drinking Water (SDWIS) facilities, 25 Clean Water Act NPDES permits, and 3 impaired water dischargers in Douglas County County, alongside 1 historical FEMA federal disaster declarations (1 flood/storm events).
Does Douglas County, CO have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Douglas County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.