EPA Air · stack tests by county and year
Air-emissions stack tests in Decatur County, Indiana, 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 Decatur County, Indiana 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 Decatur County facility page.
Air-emissions stack tests in Decatur County, other years
What stands out
- Stack tests in Decatur County, Indiana, fell from 16 in 2025, the previous year on file, to 7 in 2026.
- The county’s file for stack tests holds 10 years of events, from 2017 through 2026.
- Its 7 stack tests rank 42nd of the 56 county cells in Indiana for 2026.
- Its 7 stack tests are 0.5% of the 1,315 the state’s file holds for 2026.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Decatur County, Indiana, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-10 | ADVANCED BEARING MATERIALS LLC | Pass | State |
| 2026-06-10 | ADVANCED BEARING MATERIALS LLC | Pass | State |
| 2026-06-10 | ADVANCED BEARING MATERIALS LLC | Pass | State |
| 2026-06-10 | ADVANCED BEARING MATERIALS LLC | Pass | State |
| 2026-01-08 | ROCKIES EXPRESS PIPELINE LLC - ST PAUL COMPRESSOR STATION | Pass | State |
| 2026-01-08 | ROCKIES EXPRESS PIPELINE LLC - ST PAUL COMPRESSOR STATION | Pass | State |
| 2026-01-08 | ROCKIES EXPRESS PIPELINE LLC - ST PAUL COMPRESSOR STATION | 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 Decatur county, IN, in 2026. It lists 7 stack tests recorded in 2026.