EPA Air · stack tests by state, industry and year
Food manufacturing (NAICS 3111): stack tests in Iowa, 2026
- 3Stack 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 3111. A facility filing more than one industry code is counted under the first one on its record.
Food manufacturing (NAICS 3111) in Iowa, other years
Other industries in Iowa, 2026
- Chemical manufacturing (NAICS 3251) 58
- Utilities (NAICS 2211) 27
- Food manufacturing (NAICS 3112) 15
- Publishing industries (NAICS 5112) 8
- 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 3116) 3
Air-emissions stack tests recorded in Iowa, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-05-05 | NATURALLY RECYCLED PROTEINS OF IOWA LLC | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2026-04-28 | CARGILL ANIMAL NUTRITION - SIOUX CITY — high-priority violation on file | SIOUX CITY, Woodbury, IA | Fail | State |
| 2026-01-22 | MURPHY-BROWN LLC | ALGONA, Kossuth, IA | Pass | State |
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.