EPA Air · stack tests by county and year
Air-emissions stack tests in Loudoun County, Virginia, 2022
- 10Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Loudoun County, Virginia during 2022. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Loudoun County facility page.
Loudoun County, Virginia, 2022
Air-emissions stack tests in Loudoun County, other years
Air-emissions stack tests recorded in Loudoun County, Virginia, 2022
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2022-12-08 | HAYDEN TECHNOLOGIES, LLC. | Pass | State |
| 2022-11-15 | AMAZON DATA SERVICES INC IAD-120/121/122 | Pass | State |
| 2022-11-10 | AMAZON DATA SERVICES, INC. IAD-140/141/143 | Pass | State |
| 2022-11-03 | QTS LLC - ASHBURN-SHELLHORN DATA CENTER | Pass | State |
| 2022-10-30 | ALIGNED ENERGY DATA CENTERS (ASHBURN), LLC | Pass | State |
| 2022-10-14 | AMAZON DATA SERVICES, INC. IAD-12 IAD-15 IAD-16 IAD-76 IAD-230 | Pass | State |
| 2022-10-13 | AMAZON DATA SERVICES, INC. IAD-61 IAD-63 IAD-65 IAD-86 | Pass | State |
| 2022-10-12 | DIGITAL REALTY (DIGITAL LOUDOUN 3 & 4, LLC) | Pass | State |
| 2022-03-17 | POTOMAC ENERGY CENTER LLC | Pass | State |
| 2022-03-16 | BHE GT&S - LOUDOUN COMPRESSOR STATION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.