EPA Air · stack tests by county and year
Air-emissions stack tests in Henderson County, Kentucky, 2023
- 8Stack 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 Henderson County, Kentucky during 2023. 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 Henderson County facility page.
Henderson County, Kentucky, 2023
Air-emissions stack tests in Henderson County, other years
What stands out
- Stack tests in Henderson County, Kentucky, fell from 15 in 2022, the previous year on file, to 8 in 2023.
- The county’s file for stack tests holds 10 years of events, from 2017 through 2026.
- Its 8 stack tests rank 3rd of the 22 county cells in Kentucky for 2023.
- Its 8 stack tests are 3.8% of the 210 the state’s file holds for 2023.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Henderson County, Kentucky, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-12-11 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2023-10-17 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2023-08-01 | CENTURY ALUMINUM SEBREE LLC | Fail | State |
| 2023-05-25 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2023-05-23 | CENTURY ALUMINUM SEBREE LLC | Fail | State |
| 2023-04-18 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2023-03-07 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2023-01-13 | CENTURY ALUMINUM SEBREE LLC | 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 Henderson county, KY, for 2023. It lists 8 stack tests recorded in 2023.