EPA Air · stack tests by county and year
Air-emissions stack tests in Montgomery County, Maryland, 2022
- 3Stack 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 Montgomery County, Maryland 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 Montgomery County facility page.
Montgomery County, Maryland, 2022
- Inspections 41
Air-emissions stack tests in Montgomery County, other years
What stands out
- Stack tests in Montgomery County, Maryland, held at 3 in both 2020, the previous year on file, and 2022.
- The county’s file for stack tests holds 8 years of events, from 2017 through 2025.
- Its 3 stack tests rank 4th of the 6 county cells in Maryland for 2022.
- Its 3 stack tests are 5.8% of the 52 the state’s file holds for 2022.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Montgomery County, Maryland, 2022
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2022-12-21 | INSTITUTE FOR BIOSCIENCE AND BIOTECHNOLOGY RESEARCH (IBBR) | Pass | State |
| 2022-11-10 | MONTGOMERY COUNTY RRF — high-priority violation on file | Pass | State |
| 2022-03-04 | GSA FEDERAL RESEARCH CENTER AT WHITE OAK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Montgomery county, MD, in 2022. Stack tests recorded for 2022: 3.