EPA Air · stack tests by county and year
Air-emissions stack tests in Fairfield County, Connecticut, 2025
- 13Stack 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 Fairfield County, Connecticut during 2025. 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 Fairfield County facility page.
Fairfield County, Connecticut, 2025
Air-emissions stack tests in Fairfield County, other years
Air-emissions stack tests recorded in Fairfield County, Connecticut, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-12 | SECURE MARK DECAL | Pass | State |
| 2025-09-30 | SIKORSKY AIRCRAFT - MAIN PLANT | Pass | State |
| 2025-09-29 | SIKORSKY AIRCRAFT - MAIN PLANT | Pass | State |
| 2025-08-12 | BEDOUKIAN RESEARCH, INC | Pass | State |
| 2025-05-08 | CONNECTICUT JET POWER - COS COB STATION | Pass | State |
| 2025-05-08 | CONNECTICUT JET POWER - COS COB STATION | Pass | State |
| 2025-05-08 | WHEELABRATOR BRIDGEPORT LP | Pass | State |
| 2025-05-07 | WHEELABRATOR BRIDGEPORT LP | Pass | State |
| 2025-05-06 | WHEELABRATOR BRIDGEPORT LP | Pass | State |
| 2025-01-23 | GB II CONNECTICUT, LLC - BRIDGEPORT HARBOR STATION | Pass | State |
| 2025-01-23 | GB II CONNECTICUT, LLC - BRIDGEPORT HARBOR STATION | Pass | State |
| 2025-01-07 | BOEHRINGER INGELHEIM PHARMACEUTICALS INC | Pass | State |
| 2025-01-07 | BOEHRINGER INGELHEIM PHARMACEUTICALS INC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
The page covers Clean Air Act facilities in the EPA air register with stack tests in Fairfield county, CT, for 2025. It lists 13 stack tests recorded in 2025.