EPA Air · by county
Air-emissions sources in Loudoun County, Virginia
- 240Facilities
Every stationary source in Loudoun County, Virginia that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Loudoun County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Loudoun County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 — inspections 48
- 2025 — inspections 80
- 2024 — inspections 75
- 2023 — inspections 72
- 2022 — inspections 63
- 2021 — inspections 61
- 2020 — inspections 54
- 2019 — inspections 66
- 2018 — inspections 90
- 2017 — inspections 82
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| FEDERAL AVIATION ADM | Minor source | No |
| FEMA MOUNT WEATHER EMERGENCY OPERATIONS | Synthetic minor source | No |
| FESTIVAL CLEANERS | Minor source | No |
| FREDERICK DOUGLAS ELEMENTARY SCHOOL LOUDOUN | Minor source | No |
| GEORGE WASHINGTON UNIVERSITY - VA CAMPUS BLDG II | Minor source | No |
| GLOBAL FOOD | No | |
| GOOSE CREEK BEND SEWAGE PUMPING STATION | Minor source | No |
| GRAND TOURING INC. | Minor source | No |
| HAMILTON ELEMENTARY SCHOOL | Minor source | No |
| HAYDEN TECHNOLOGIES, LLC. | Synthetic minor source | No |
| HERITAGE CLEANERS - LOUDOUN | Minor source | No |
| HOLTZMAN OIL CORP | Minor source | No |
| HUNTINGTON-INGALLS INDUSTRIES, INC. MISSION TECHNOLOGIES | Minor source | No |
| INDEPENDENCE EXCAVATING INC - PORTABLE 74307 | Synthetic minor source | No |
| INDEPENDENT CAR COLLISION INCORPORATED | Minor source | No |
| INOVA BLOOD DONORS SERVICE CENTER DULLES | Minor source | No |
| INOVA HEALTH CARE SYSTEMS - IT OPERATIONS | Minor source | No |
| INOVA LOUDOUN HOSPITAL | Synthetic minor source | No |
| INOVA LOUDOUN MEDICAL CAMPUS - LEESBURG | Minor source | No |
| INTERGATE - ASHBURN, LLC | Synthetic minor source | No |
| IRIDIUM SATELLITE, L.L.C | Minor source | No |
| ISKANDER (LC-1A) JAMSHID (LC-1B) KAVEH (LC2) LOHRASP VENTURES (LC3) | Synthetic minor source | Yes |
| JANELIA RESEARCH CAMPUS - HHMI | Synthetic minor source | No |
| JBL SPECIALTY AUTOMOTIVE | Minor source | No |
| JEFFERSON MILLWORK AND DESIGN | Synthetic minor source | No |
| KAISER PERMANENTE | Minor source | No |
| KENNETH B. ROLLINS WATER TREATMENT PLANT | Synthetic minor source | No |
| LANE CONSTRUCTION CORPORATION - PORTABLE | Minor source | No |
| LCSA - BROAD RUN WATER RECLAMATION | Synthetic minor source | No |
| LEESBURG CLEANERS | Minor source | No |
| LINCOLN ELEMENTARY SCHOOL | Minor source | No |
| LOUDOUN AUTO BODY, LLC | Minor source | No |
| LOUDOUN COLLISION CENTER INCORPORATED | Minor source | No |
| LOUDOUN COMPRESSOR STATION | Synthetic minor source | No |
| LOUDOUN COUNTY DEPARTMENT OF FIRE AND RE | Minor source | No |
| LOUDOUN COUNTY MILLING CO. INC. | Minor source | No |
| LOUDOUN COUNTY SOLID WASTE MANAGEMENT FACILITY | Synthetic minor source | No |
| LOUDOUN FUNERAL CHAPEL | Minor source | No |
| LOUDOUN LAUNDRY INC DBA EXECUTIVE CLEANERS | Minor source | No |
| LOUDOUN VALLEY HIGH SCHOOL | Minor source | No |
| LOUDOUN WATER | Minor source | No |
| LOUDOUN WATER - RTE 50 WATER BOOSTER PUMP STATION | Minor source | No |
| LOUDOUN WATER TREATMENT PLANT | Minor source | No |
| LUCK STONE - BULL RUN | Synthetic minor source | No |
| LUCK STONE - GOOSE CREEK PLANT | Synthetic minor source | No |
| LUCK STONE - LEESBURG PLANT | Synthetic minor source | No |
| MAACO | Minor source | No |
| MAPLE CLEANERS | Minor source | No |
| MARBLE CREATIONS | Minor source | No |
| MERRITT- LS4, LLC | Synthetic minor source | No |
| MICROSOFT BLUE RIDGE (IAD11-12-13) DATA CENTER | Synthetic minor source | No |
| MICROSOFT CORPORATION â LEESBURG DATA CENTER (IAD01-02-03-04-05) | Synthetic minor source | Yes |
| MOORE CADILLAC HUMMER OF DULLES | Minor source | No |
| MWAA - WASHINGTON DULLES INTERNATIONAL AIRPORT | Synthetic minor source | No |
| NATIONS LIGHTHOUSE BODY SHOP | Minor source | No |
| NIGHTWING | Minor source | No |
| NIGHTWING | Minor source | No |
| NORTHROP GRUMMAN SYSTEMS CORP - SPACE SUPERIORITY DIVISION | Minor source | No |
| NTSB TRAINING ACADEMY | Minor source | No |
| NTT GLOBAL DATA CENTERS AMERICAS, INC. | Synthetic minor source | No |
| NTT GLOBAL DATA CENTERS AMERICAS, INC.- VA1 | Synthetic minor source | No |
| NTT GLOBAL DATA CENTERS VA2, LLC | Synthetic minor source | No |
| ORBITAL SCIENCES LLC | Minor source | No |
| PARC CITY CLEANERS | Minor source | No |
| PERFECTION PLUS AUTO BODY | Minor source | No |
| PLATINUM AUTOBODY INCORPORATED | Minor source | No |
| POTOMAC ENERGY CENTER LLC | Major source | No |
| PRESTIGE CLEANERS | Minor source | No |
| PROSPERITY CLEANERS | Minor source | No |
| PURCELLVILLE CLEANERS | Minor source | No |
| QTS DULLES, LLC | Minor source | No |
| QTS INVESTMENT PROPERTIES ASHBURN LLC | Synthetic minor source | No |
| QTS LLC - ASHBURN-SHELLHORN DATA CENTER | Synthetic minor source | No |
| QUANTUM PARK | Minor source | No |
| RAYTHEON - DULLES | Minor source | No |
| ROUND HILL CENTER | Minor source | No |
| ROUND HILL ELEMENTARY SCHOOL | Minor source | No |
| ROYAL AUTO BODY INCORPORATED | Minor source | No |
| SENECA AUTO BODY | Minor source | No |
| SENECA AUTO BODY | Minor source | No |
| SENTINEL ASHBURN NEXUS | Synthetic minor source | No |
| SHENANDOAH CLEANERS | Minor source | No |
| SI NVA01 ABS, LLC | Synthetic minor source | No |
| SMITTIES CLASSY CHASSIES | Minor source | No |
| SOUTHERN STATES LEESBURG PETROLEUM SERVICE | Minor source | No |
| SOUTHERN STATES COOP - LEESBURG PETROLEUM SERVICE | Minor source | No |
| STACK INFRASTRUCTURE - SI NVA06A LLC | Synthetic minor source | No |
| STERLING AUTO BODY AND PAINT SPECIALS | Minor source | No |
| STERLING PARK CLEANERS | Minor source | No |
| STERLING PARK TECHNOLOGY CENTER | Synthetic minor source | No |
| STONESPRINGS HOSPITAL CENTER | Minor source | No |
| STRINGRAY'S AUTOBODY | Minor source | No |
| SUPERIOR CONCRETE | Minor source | No |
| SUPERIOR CONCRETE MATERIALS - DULLES | Minor source | No |
| SUPERIOR IRON WORKS INCORPORATED | Minor source | No |
| SUPERIOR PAVING CORP - BULL RUN HMA FACILITY | Synthetic minor source | No |
| SUPERIOR PAVING CORP - LEESBURG PLANT | Synthetic minor source | No |
| TECHNOLOGY ADVANCEMENT GROUP | Minor source | No |
| TELOS CORPORATION | Minor source | No |
| TERRYS BODY SHOP INCORPORATED - BAILEY LN | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.