EPA Air · stack tests by state and year
Air-emissions stack tests in Virginia, 2025
- 170Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Virginia during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Virginia, 2025
- Loudoun County 21
- Fairfax County 12
- Norfolk (city) County 9
- Pittsylvania County 8
- Hopewell (city) County 7
- Halifax County 6
- Frederick County 6
- Prince William County 6
- Covington (city) County 6
- Wise County 5
- Portsmouth (city) County 5
- Botetourt County 5
- Henrico County 5
- King William County 5
- Isle of Wight County 5
- Bedford County 3
- Fluvanna County 3
Virginia, other years
Air-emissions stack tests recorded in Virginia, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-06-11 | MICROSOFT CORPORATION - TIMBER DATA CENTER | BOYDTON, Mecklenburg, VA | Pass | State |
| 2025-06-06 | TRANSCO COMPRESSOR STATIONS 165 AND 166 | CHATHAM, Pittsylvania, VA | Fail | State |
| 2025-06-06 | TRANSCO COMPRESSOR STATIONS 165 AND 166 | CHATHAM, Pittsylvania, VA | Pass | State |
| 2025-06-05 | QTS RICHMOND DATA CENTER — high-priority violation on file | SANDSTON, Henrico, VA | Pass | State |
| 2025-06-04 | SHENANDOAH COMPRESSOR STATION | SHENANDOAH, Page, VA | Pass | State |
| 2025-06-04 | TRANSCO COMPRESSOR STATIONS 165 AND 166 | CHATHAM, Pittsylvania, VA | Pass | State |
| 2025-05-29 | HOPEWELL WATER RENEWAL | HOPEWELL, Hopewell (city), VA | Pass | State |
| 2025-05-20 | INGENCO WHOLESALE POWER LLC - NEW RIVER | DUBLIN, Pulaski, VA | Pass | State |
| 2025-05-15 | COLONIAL PIPELINE TERMINALS FREDERICKSBURG TERMINAL | FREDERICKSBURG, Fredericksburg (city), VA | Pass | State |
| 2025-05-14 | NOVEC ENERGY PRODUCTION HALIFAX COUNTY BIOMASS | SOUTH BOSTON, Halifax, VA | Pass | State |
| 2025-05-14 | COLONIAL PIPELINE TERMINALS FREDERICKSBURG TERMINAL | FREDERICKSBURG, Fredericksburg (city), VA | Pass | State |
| 2025-05-08 | TENASKA VIRGINIA PARTNERS, L.P. | SCOTTSVILLE, Fluvanna, VA | Pass | State |
| 2025-05-08 | US ARMY - RAAP — high-priority violation on file | RADFORD, Montgomery, VA | Pass | State |
| 2025-05-08 | TRANSCO COMPRESSOR STATIONS 165 AND 166 | CHATHAM, Pittsylvania, VA | Pass | State |
| 2025-05-07 | NOMAN M. COLE JR. WATER RECYCLING FACILITY | LORTON, Fairfax, VA | Pass | State |
| 2025-05-06 | TRANSCONTINENTAL GAS PIPELINE - STATION 175 | SCOTTSVILLE, Fluvanna, VA | Fail | State |
| 2025-05-01 | EAST TENNESSEE NATURAL GAS LLC-STATION 3401 | MCCLURE, Dickenson, VA | Pass | State |
| 2025-04-30 | WESTROCK CP LLC - WEST POINT | WEST POINT, King William, VA | Pass | State |
| 2025-04-30 | MICROSOFT CORPORATION â LEESBURG DATA CENTER (IAD01-02-03-04-05) — high-priority violation on file | LEESBURG, Loudoun, VA | Pass | State |
| 2025-04-25 | WESTROCK CP LLC - WEST POINT | WEST POINT, King William, VA | Pass | State |
| 2025-04-24 | BUCKEYE TERMINALS, LLC - FAIRFAX TERMINAL | FAIRFAX, Fairfax (city), VA | Pass | State |
| 2025-04-22 | BUCKEYE TERMINALS LLC - CHESAPEAKE TERMINAL | CHESAPEAKE, Chesapeake (city), VA | Pass | State |
| 2025-04-22 | US NAVY - NSA HAMPTON ROADS HQ | NORFOLK, Norfolk (city), VA | Pass | State |
| 2025-04-17 | US NAVY - NAVAL STATION NORFOLK | NORFOLK, Norfolk (city), VA | Pass | State |
| 2025-04-16 | GP BIG ISLAND LLC | BIG ISLAND, Bedford, VA | Pass | State |
| 2025-04-16 | EQUINIX LLC (DC-21/DC-22) | ASHBURN, Loudoun, VA | Pass | State |
| 2025-04-16 | US NAVY - NAVAL STATION NORFOLK | NORFOLK, Norfolk (city), VA | Pass | State |
| 2025-04-15 | GP BIG ISLAND LLC | BIG ISLAND, Bedford, VA | Pass | State |
| 2025-04-15 | KINGSPAN INSULATION LLC | WINCHESTER, Frederick, VA | Pass | State |
| 2025-04-15 | WESTROCK CP LLC - HOPEWELL | HOPEWELL, Hopewell (city), VA | Pass | State |
| 2025-04-15 | US NAVY - NAVAL STATION NORFOLK | NORFOLK, Norfolk (city), VA | Pass | State |
| 2025-04-15 | HRSD - VIRGINIA INITIATIVE WASTEWATER TREATMENT PLANT | NORFOLK, Norfolk (city), VA | Pass | State |
| 2025-04-08 | DYNAX AMERICA CORP USA — high-priority violation on file | ROANOKE, Botetourt, VA | Pass | State |
| 2025-04-08 | CHIRISA RICHMOND LLC | CHESTER, Chesterfield, VA | Pass | State |
| 2025-04-03 | ISKANDER (LC-1A) JAMSHID (LC-1B) KAVEH (LC2) LOHRASP VENTURES (LC3) — high-priority violation on file | ASHBURN, Loudoun, VA | Pass | State |
| 2025-04-02 | VANTAGE DATA CENTERS VA2 LLC | STERLING, Loudoun, VA | Pass | State |
| 2025-03-28 | HRSD - VIRGINIA INITIATIVE WASTEWATER TREATMENT PLANT | NORFOLK, Norfolk (city), VA | Pass | State |
| 2025-03-27 | REWORLD ALEXANDRIA/ARLINGTON, LLC | ALEXANDRIA, Alexandria (city), VA | Pass | State |
| 2025-03-26 | NOMAN M. COLE JR. WATER RECYCLING FACILITY | LORTON, Fairfax, VA | Pass | State |
| 2025-03-26 | QTS DULLES, LLC | WASHINGTON DULLES INTERNATIONAL AIRPORT, Loudoun, VA | Pass | State |
| 2025-03-24 | US NAVY - NORFOLK NAVAL SHIPYARD | PORTSMOUTH, Portsmouth (city), VA | Pass | State |
| 2025-03-24 | US NAVY - NORFOLK NAVAL SHIPYARD | PORTSMOUTH, Portsmouth (city), VA | Pass | State |
| 2025-03-20 | DOMINION ENERGY - VIRGINIA CITY HYBRID ENERGY CENTER | ST PAUL, Wise, VA | Pass | State |
| 2025-03-20 | SONOCO PRODUCTS CO | RICHMOND, Richmond (city), VA | Pass | State |
| 2025-03-19 | TRANSCO COMPRESSOR STATIONS 165 AND 166 | CHATHAM, Pittsylvania, VA | Pass | State |
| 2025-03-15 | DOMINION/ODEC - CLOVER POWER STATION — high-priority violation on file | CLOVER, Halifax, VA | Pass | State |
| 2025-03-13 | QTS RICHMOND DATA CENTER — high-priority violation on file | SANDSTON, Henrico, VA | Pass | State |
| 2025-03-12 | AMAZON DATA SERVICES INC - IAD-165/166/167/168/613 | HERNDON, Fairfax, VA | Pass | State |
| 2025-03-11 | MIDDLE PENINSULA LANDFILL AND RECYCLING FACILITY | GLENNS, Gloucester, VA | Pass | State |
| 2025-03-11 | STS GROUP NORTH AMERICA INC — high-priority violation on file | SALEM, Salem (city), VA | Pass | State |
| 2025-03-05 | NOMAN M. COLE JR. WATER RECYCLING FACILITY | LORTON, Fairfax, VA | Fail | State |
| 2025-03-04 | HP HOOD LLC | WINCHESTER, Frederick, VA | Pass | State |
| 2025-03-04 | MOLSON COORS BEVERAGE COMPANY USA LLC | ELKTON, Rockingham, VA | Pass | State |
| 2025-03-03 | AMAZON DATA SERVICES INC - IAD-104/105/106 | MANASSAS, Manassas (city), VA | Pass | State |
| 2025-02-28 | WESTROCK VIRGINIA LLC - COVINGTON | COVINGTON, Covington (city), VA | Pass | State |
| 2025-02-26 | COLUMBIA GAS TRANSMISSION LLC - STRASBURG COM STA | STRASBURG, Shenandoah, VA | Pass | State |
| 2025-02-25 | LIFENET HEALTH | VIRGINIA BEACH, Virginia Beach (city), VA | Pass | State |
| 2025-02-19 | NOMAN M. COLE JR. WATER RECYCLING FACILITY | LORTON, Fairfax, VA | Pass | State |
| 2025-02-19 | O'SULLIVAN FILMS INC | WINCHESTER, Winchester (city), VA | Pass | State |
| 2025-02-14 | REWORLD FAIRFAX, LLC | LORTON, Fairfax, VA | Pass | State |
| 2025-02-06 | AMAZON DATA SERVICES INC IAD-195/196/197/198 | GAINESVILLE, Prince William, VA | Pass | State |
| 2025-02-05 | US NAVY - NSA HAMPTON ROADS HQ | NORFOLK, Norfolk (city), VA | Pass | State |
| 2025-01-30 | NOVA MANGO FARMS LLC | BRISTOW, Prince William, VA | Pass | State |
| 2025-01-29 | QTS INVESTMENT PROPERTIES MANASSAS LLC | MANASSAS, Prince William, VA | Pass | State |
| 2025-01-21 | TRANSCO COMPRESSOR STATIONS 165 AND 166 | CHATHAM, Pittsylvania, VA | Pass | State |
| 2025-01-16 | NOVEC ENERGY PRODUCTION HALIFAX COUNTY BIOMASS | SOUTH BOSTON, Halifax, VA | Pass | State |
| 2025-01-10 | VANTAGE DATA CENTERS VA11, VA12, VA13, VA14, & VA15 | STERLING, Loudoun, VA | Pass | State |
| 2025-01-10 | NOVO NORDISK PHARMACEUTICAL INDUSTRIES LP | PETERSBURG, Petersburg (city), VA | Fail | State |
| 2025-01-09 | GEORGE BUSH CENTER FOR INTELLIGENCE (CIA) | MCLEAN, Fairfax, VA | Pass | State |
| 2025-01-08 | BOWER FUNERAL HOME | PULASKI, Pulaski, VA | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.