EPA Air · stack tests by county and year
Air-emissions stack tests in Litchfield County, Connecticut, 2025
- 10Stack 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 Litchfield 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 Litchfield County facility page.
Litchfield County, Connecticut, 2025
Air-emissions stack tests in Litchfield County, other years
What stands out
- Stack tests in Litchfield County, Connecticut, rose from 3 in 2024, the previous year on file, to 10 in 2025.
- The county’s file for stack tests holds 10 years of events, from 2017 through 2026.
- Its 10 stack tests rank 6th of the 9 county cells in Connecticut for 2025.
- Its 10 stack tests are 5.6% of the 178 the state’s file holds for 2025.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Litchfield County, Connecticut, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-17 | AMGRAPH PACKAGING, INC. | Pass | State |
| 2025-12-02 | KIMBERLY-CLARK CORPORATION, NEW MILFORD MILL — high-priority violation on file | Pass | State |
| 2025-06-30 | PLAINFIELD PIKE, LLC | Pass | State |
| 2025-06-19 | PLAINFIELD RENEWABLE ENERGY LLC | Pass | State |
| 2025-05-07 | CONNECTICUT JET POWER - FRANKLIN DRIVE STATION | Pass | State |
| 2025-05-07 | CONNECTICUT JET POWER - FRANKLIN DRIVE STATION | Pass | State |
| 2025-05-07 | CONNECTICUT JET POWER - TORRINGTON TERMINAL | Pass | State |
| 2025-05-07 | CONNECTICUT JET POWER - TORRINGTON TERMINAL | Pass | State |
| 2025-02-28 | HOTCHKISS SCHOOL | Pass | State |
| 2025-02-26 | HOTCHKISS SCHOOL | 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 Litchfield county, CT, for 2025. It lists 10 stack tests recorded in 2025.