EPA Air · stack tests by county and year
Air-emissions stack tests in Collin County, Texas, 2026
- 13Stack 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 Collin County, Texas 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 Collin County facility page.
Air-emissions stack tests in Collin County, other years
- 2025 3
Air-emissions stack tests recorded in Collin County, Texas, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-29 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-07-29 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | Pass | State |
| 2026-02-11 | TEXAS INSTRUMENTS RICHARDSON | 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 Collin county, TX, for 2026. It lists 13 stack tests recorded in 2026.