EPA Air · stack tests by county and year
Air-emissions stack tests in Loudoun County, Virginia, 2019
- 21Stack 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 2019. 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, 2019
Air-emissions stack tests in Loudoun County, other years
Air-emissions stack tests recorded in Loudoun County, Virginia, 2019
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2019-11-07 | DIGITAL REALTY (DIGITAL LOUDOUN 3 & 4, LLC) | Pass | State |
| 2019-10-30 | CYRUSONE NORTHERN VIRGINIA DATA CENTER - SHAW ROAD | Pass | State |
| 2019-10-25 | CYRUSONE LOUDOUN TECH CENTER | Pass | State |
| 2019-10-18 | ALIGNED ENERGY DATA CENTERS (ASHBURN), LLC | Pass | State |
| 2019-10-10 | NTT GLOBAL DATA CENTERS AMERICAS, INC. | Pass | State |
| 2019-09-26 | HAYDEN TECHNOLOGIES, LLC. | Pass | State |
| 2019-08-30 | AMAZON DATA SERVICES, INC. IAD-90 IAD-91 IAD-92 | Pass | State |
| 2019-08-28 | DIGITAL REALTY (DIGITAL LOUDOUN 3 & 4, LLC) | Fail | State |
| 2019-08-23 | WHEELER DATA CENTER | Pass | State |
| 2019-07-31 | ISKANDER (LC-1A) JAMSHID (LC-1B) KAVEH (LC2) LOHRASP VENTURES (LC3) — high-priority violation on file | Pass | State |
| 2019-06-12 | VANTAGE DATA CENTERS VA11, VA12, VA13, VA14, & VA15 | Pass | State |
| 2019-05-22 | DIGITAL LOUDOUN PKWY CENTER N LLC | Pass | State |
| 2019-05-02 | NTT GLOBAL DATA CENTERS AMERICAS, INC. | Pass | State |
| 2019-04-26 | CYRUSONE NORTHERN VIRGINIA DATA CENTER - MARIES ROAD | Pass | State |
| 2019-04-25 | CYRUSONE KINCORA | Pass | State |
| 2019-04-05 | POTOMAC ENERGY CENTER LLC | Pass | State |
| 2019-04-05 | WHEELER DATA CENTER | Fail | State |
| 2019-03-27 | SENTINEL ASHBURN NEXUS | Pass | State |
| 2019-03-11 | DIGITAL LOUDOUN PKWY CENTER N LLC | Pass | State |
| 2019-01-24 | AMAZON DATA SERVICES, INC. IAD-10 IAD-32 IAD-98 IAD-99 IAD-118 IAD-119 IAD-129 | Pass | State |
| 2019-01-22 | DIGITAL REALTY (DIGITAL LOUDOUN 3 & 4, LLC) | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.