EPA Air · stack tests by county and year
Air-emissions stack tests in Henderson County, Kentucky, 2021
- 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 Henderson County, Kentucky during 2021. 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, 2021
- Inspections 16
Air-emissions stack tests in Henderson County, other years
What stands out
- Stack tests in Henderson County, Kentucky, rose from 9 in 2020, the previous year on file, to 10 in 2021.
- The county’s file for stack tests holds 10 years of events, from 2017 through 2026.
- Its 10 stack tests rank 5th of the 23 county cells in Kentucky for 2021.
- Its 10 stack tests are 4.5% of the 222 the state’s file holds for 2021.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Henderson County, Kentucky, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-12-07 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-10-05 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-05-05 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-05-04 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-05-03 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-04-19 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-04-19 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-04-19 | CENTURY ALUMINUM SEBREE LLC | Pass | State |
| 2021-03-23 | HYDRO ALUMINUM METALS USA LLC | Pass | State |
| 2021-01-05 | 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 and stack tests in Henderson county, KY, in 2021. It lists 10 stack tests recorded in 2021.