EPA Air · stack tests by state, industry and year
Publishing industries (NAICS 5112): stack tests in Iowa, 2026
- 8Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Iowa source whose primary industry code is NAICS 5112. A facility filing more than one industry code is counted under the first one on its record.
Publishing industries (NAICS 5112) in Iowa, other years
Other industries in Iowa, 2026
- Chemical manufacturing (NAICS 3251) 58
- Utilities (NAICS 2211) 27
- Food manufacturing (NAICS 3112) 15
- Pipeline transportation (NAICS 4862) 8
- Primary metal manufacturing (NAICS 3311) 7
- Nonmetallic mineral product manufacturing (NAICS 3273) 5
- Chemical manufacturing (NAICS 3253) 4
- Professional, scientific and technical services (NAICS 5419) 4
- Primary metal manufacturing (NAICS 3315) 4
- Administration of environmental programs (NAICS 9241) 4
- Food manufacturing (NAICS 3111) 3
- Food manufacturing (NAICS 3116) 3
Air-emissions stack tests recorded in Iowa, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-06-18 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Pass | Local |
| 2026-04-30 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Fail | Local |
| 2026-04-29 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Pass | Local |
| 2026-04-03 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Pending | Local |
| 2026-04-02 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Pending | Local |
| 2026-04-02 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Pending | Local |
| 2026-01-22 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Pass | Local |
| 2026-01-22 | MICROSOFT CORPORATION - WILLOW CREEK/GINGER EAST DATA | DES MOINES, Polk, IA | Pass | Local |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.