EPA Air · stack tests by county and year
Air-emissions stack tests in Cochise County, Arizona, 2025
- 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 Cochise County, Arizona during 2025. 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 Cochise County facility page.
Cochise County, Arizona, 2025
- Inspections 16
Air-emissions stack tests in Cochise County, other years
Air-emissions stack tests recorded in Cochise County, Arizona, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-17 | APACHE GENERATING STATION | Pass | State |
| 2025-09-16 | APACHE GENERATING STATION | Pass | State |
| 2025-08-27 | APACHE GENERATING STATION | Pass | State |
| 2025-06-03 | APACHE GENERATING STATION | Pass | State |
| 2025-03-26 | APACHE GENERATING STATION | Pass | State |
| 2025-03-21 | APACHE NITROGEN PRODUCTS INC — high-priority violation on file | Pass | State |
| 2025-01-15 | EL PASO NATURAL GAS - WILLCOX COMPRESSOR STATION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.