EPA Air · stack tests by county and year
Air-emissions stack tests in Hartford County, Connecticut, 2025
- 33Stack 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 Hartford 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 Hartford County facility page.
Hartford County, Connecticut, 2025
Air-emissions stack tests in Hartford County, other years
Air-emissions stack tests recorded in Hartford County, Connecticut, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-18 | KONGSBERG AUTOMOTIVE — high-priority violation on file | Fail | State |
| 2025-12-11 | MANCHESTER LANDFILL | Pass | State |
| 2025-12-03 | THE JACKSON LABORATORY FOR GENOMIC MEDICINE — high-priority violation on file | Pass | State |
| 2025-10-30 | AHLSTROM NONWOVENS, LLC | Pass | State |
| 2025-10-15 | REWORLD BRISTOL, INC. | Pass | State |
| 2025-10-14 | REWORLD BRISTOL, INC. | Pass | State |
| 2025-10-01 | AHLSTROM NONWOVENS, LLC | Pass | State |
| 2025-09-30 | AHLSTROM NONWOVENS, LLC | Pass | State |
| 2025-09-04 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | Pass | State |
| 2025-09-03 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | Pass | State |
| 2025-09-02 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | Pass | State |
| 2025-08-26 | SCAPA TAPE NORTH AMERICA | Pass | State |
| 2025-08-14 | ETHOSENERGY ACCESSORIES AND COMPONENTS, LLC | Pass | State |
| 2025-07-17 | THE JACKSON LABORATORY FOR GENOMIC MEDICINE — high-priority violation on file | Fail | State |
| 2025-07-02 | HIGHWAY SAFETY CORP / CT GALVANIZING | Fail | State |
| 2025-06-27 | ITW GRAPHICS | Pass | State |
| 2025-05-30 | STRATEGIC MATERIALS | Fail | State |
| 2025-05-30 | STRATEGIC MATERIALS | Pass | State |
| 2025-05-14 | PALM ENERGY LLC | Pass | State |
| 2025-04-24 | BRADLEY INTERNATIONAL AIRPORT / AMERESCO SELECT, INC. | Pass | State |
| 2025-04-23 | BRADLEY INTERNATIONAL AIRPORT / AMERESCO SELECT, INC. | Pass | State |
| 2025-04-23 | BRADLEY INTERNATIONAL AIRPORT / AMERESCO SELECT, INC. | Pass | State |
| 2025-03-13 | HAMILTON SUNDSTRAND CORPORATION - COLLINS AEROSPACE | Pass | State |
| 2025-03-12 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | Pass | State |
| 2025-03-11 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | Pass | State |
| 2025-03-11 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | Pass | State |
| 2025-03-05 | DUNN PAPER - EAST HARTFORD, LLC | Pass | State |
| 2025-02-27 | STANLEY TOOLS | Pass | State |
| 2025-02-26 | STANLEY TOOLS | Pass | State |
| 2025-02-26 | BRADLEY INTERNATIONAL AIRPORT / AMERESCO SELECT, INC. | Pass | State |
| 2025-02-25 | STANLEY TOOLS | Pass | State |
| 2025-02-04 | PEPPERIDGE FARM, INC | Pass | State |
| 2025-01-22 | PALM ENERGY LLC | Fail | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.