Loudoun County, Virginia — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Loudoun County, VA?
In Loudoun County, Virginia, public U.S. EPA records track 478 regulated facilities (#15 of 257 in Virginia), including 9 (1.9%) High-Risk sites and $110,400 in federal penalties. Countywide due diligence also covers 3 Safe Drinking Water (SDWIS) facilities, 433 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Loudoun County, VA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Loudoun County, VA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Loudoun County
Top EPA Regulated Facilities in Loudoun County, VA
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 • HILLSBORO, VA (ZIP 20132 Sector) | HIGH (64/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • LEESBURG, VA (ZIP 20175 Sector) | HIGH (64/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • LEESBURG, VA (ZIP 20175 Sector) | HIGH (64/100) | Significant Violation (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • MIDDLEBURG, VA (ZIP 20117 Sector) | MODERATE (41/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • LEESBURG, VA (ZIP 20175 Sector) | MODERATE (39/100) | Violation Identified (1 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • STERLING, VA (ZIP 20166 Sector) | MODERATE (36/100) | Violation Identified (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • CHANTILLY, VA (ZIP 20152 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • STERLING, VA (ZIP 20166 Sector) | MODERATE (31/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| AVONLEA OFFSITE SANITARY SEWER IMPROVEMENTS PLAN FREE PREVIEW (LOW RISK) | PIN# 164-27-3460 AND 164-27-3883, SOUTH RIDING, VA 20152 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| CREIGHTON HILLS SUBDIVISION FREE PREVIEW (LOW RISK) | LIME KILN RD, LEESBURG, VA 20175 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| NORTHSTAR BOULEVARD EXTENSION FREE PREVIEW (LOW RISK) | NORTHSTAR BOULEVARD FROM ROUTE 50 TO 0.18 MILES SO, ALDIE, VA 20105 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| BECO-DTC 230KV TRANSMISSION LINE FREE PREVIEW (LOW RISK) | NOT AVAILABLE, LOUDOUN COUNTY, VA 20142 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Loudoun County, Virginia Environmental Due Diligence
How many EPA-regulated environmental sites are in Loudoun County County, Virginia?
Public U.S. EPA records track 478 regulated facilities in Loudoun County County, Virginia (ranking #15 of 257 jurisdictions in VA). Of those, 9 (1.9%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 8 (1.7%) have active non-compliance quarters.
Which ZIP codes and cities in Loudoun County County have the highest regulated facility density?
Within Loudoun County County, the highest concentrations of EPA-tracked facilities are located in ZIP 20175 (Leesburg, 229 sites), ZIP 20152 (Chantilly, 104 sites), ZIP 20148 (Ashburn, 63 sites), spanning municipal corridors including Loudoun (27 sites), Bluemont (13 sites), Hillsboro (13 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Loudoun County County?
Across Loudoun County County, 2 facilities (0.4% 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 Loudoun County County, VA?
Geologic indoor air screening places Loudoun 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 Loudoun County County, VA?
Federal records track 3 Safe Drinking Water (SDWIS) facilities, 433 Clean Water Act NPDES permits, and 108 impaired water dischargers in Loudoun County County, alongside 1 historical FEMA federal disaster declarations (0 flood/storm events).
Does Loudoun County, VA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Loudoun County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.