EPA Air · stack tests by county and year
Air-emissions stack tests in Ascension County, Louisiana, 2026
- 7Stack 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 Ascension County, Louisiana during 2026. 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 Ascension County facility page.
Ascension County, Louisiana, 2026
- Inspections 11
Air-emissions stack tests in Ascension County, other years
Air-emissions stack tests recorded in Ascension County, Louisiana, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-03-10 | CF INDUSTRIES NITROGEN LLC - DONALDSONVILLE NITROGEN COMPLEX | Pass | State |
| 2026-01-08 | CF INDUSTRIES NITROGEN LLC - DONALDSONVILLE NITROGEN COMPLEX | Pass | State |
| 2026-01-08 | CF INDUSTRIES NITROGEN LLC - DONALDSONVILLE NITROGEN COMPLEX | Pass | State |
| 2026-01-07 | CF INDUSTRIES NITROGEN LLC - DONALDSONVILLE NITROGEN COMPLEX | Pass | State |
| 2026-01-07 | CF INDUSTRIES NITROGEN LLC - DONALDSONVILLE NITROGEN COMPLEX | Pass | State |
| 2026-01-06 | CF INDUSTRIES NITROGEN LLC - DONALDSONVILLE NITROGEN COMPLEX | Pass | State |
| 2026-01-05 | CF INDUSTRIES NITROGEN LLC - DONALDSONVILLE NITROGEN COMPLEX | 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 Ascension county, LA, in 2026. It lists 7 stack tests recorded in 2026.