EPA Air · stack tests by county and year
Air-emissions stack tests in Loudoun County, Virginia, 2021
- 20Stack 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 2021. 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, 2021
- Inspections 61
Air-emissions stack tests in Loudoun County, other years
Air-emissions stack tests recorded in Loudoun County, Virginia, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-12-10 | WHEELER DATA CENTER | Pass | State |
| 2021-11-10 | AMAZON DATA SERVICES, INC. IAD-150 IAD-151 IAD-152 | Pass | State |
| 2021-11-09 | VANTAGE DATA CENTERS VA11, VA12, VA13, VA14, & VA15 | Pass | State |
| 2021-11-03 | AMAZON DATA SERVICES, INC. IAD-144 IAD-145 | Pass | State |
| 2021-10-15 | AMAZON DATA SERVICES, INC. IAD-10 IAD-32 IAD-98 IAD-99 IAD-118 IAD-119 IAD-129 | Pass | State |
| 2021-10-08 | AMAZON DATA SERVICES, INC. | Pass | State |
| 2021-10-06 | SI NVA01 ABS, LLC | Pass | State |
| 2021-10-06 | DIGITAL REALTY (DIGITAL LOUDOUN 3 & 4, LLC) | Pass | State |
| 2021-10-06 | AMAZON DATA SERVICES, INC. IAD-140/141/143 | Pass | State |
| 2021-04-28 | ALIGNED ENERGY DATA CENTERS (ASHBURN), LLC | Fail | State |
| 2021-04-21 | HAYDEN TECHNOLOGIES, LLC. | Pass | State |
| 2021-04-15 | NTT GLOBAL DATA CENTERS AMERICAS, INC. | Pass | State |
| 2021-04-08 | QTS LLC - ASHBURN-SHELLHORN DATA CENTER | Pass | State |
| 2021-03-25 | BHE GT&S - LEESBURG COMPRESSOR STATION | Pass | State |
| 2021-03-17 | BHE GT&S - LOUDOUN COMPRESSOR STATION | Pass | State |
| 2021-03-12 | POTOMAC ENERGY CENTER LLC | Pass | State |
| 2021-03-03 | DIGITAL REALTY (DIGITAL LOUDOUN 3 & 4, LLC) | Pass | State |
| 2021-01-14 | AMAZON DATA SERVICES, INC. IAD-10 IAD-32 IAD-98 IAD-99 IAD-118 IAD-119 IAD-129 | Pass | State |
| 2021-01-12 | AMAZON DATA SERVICES, INC. | Pass | State |
| 2021-01-06 | SI NVA01 ABS, LLC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.