Loudoun County contains 210 EPA-regulated facilities, 1 of which are currently flagged for significant noncompliance. The county also hosts 1 Superfund sites and 15 TRI chemical reporters. EPA has assessed $200.5k in lifetime penalties and TRI reporters disclosed roughly 5.3k lb of on-site releases. That facility count is well above the Virginia state average of 39 per county.
| Site | City | Status |
|---|---|---|
| Hidden Lane Landfill | Sterling | Cleanup underway |
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Virginia Concrete Dulles Plant | Sterling | 1.9k | Compliant |
| Air Bp Fueling Operations International Airport Dulles | Sterling | 1.7k | Compliant |
| Virginia Concrete Company Inc - Chantilly Plant | Chantilly | 850 | Compliant |
| Virginia Concrete Bull Run | Chantilly | 532 | Compliant |
| Vulcan Materials - Cochran Mill Plant | Leesburg | 178 | Compliant |
| Titan Virginia Ready Mix Llc - Sterling Portable | Sterling | 116 | Compliant |
| Titan Virginia Ready-Mix Llc-Leesburg Plant | Leesburg | 46 | Compliant |
| Ttm Technologies North America Llc | Dulles | 11 | Compliant |
| Chantilly Ready Mix Concrete | Chantilly | 2 | Compliant |
| Virginia Paving Company - Chantilly Plant | Chantilly | 1 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Microsoft Corporation – Leesburg Data Center (Iad01-02-03-04-05) | Leesburg | $0 | 2025-07-08 |