EPA Air · violations by state, industry and year
Chemical manufacturing (NAICS 3253): violations in Iowa, 2025
- 3Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Each row is one violation recorded during 2025 at a Iowa source whose primary industry code is NAICS 3253. A facility filing more than one industry code is counted under the first one on its record.
Chemical manufacturing (NAICS 3253) in Iowa, other years
Other industries in Iowa, 2025
- Chemical manufacturing (NAICS 3251) 32
- Food manufacturing (NAICS 3112) 20
- Utilities (NAICS 2211) 6
- Nonmetallic mineral product manufacturing (NAICS 3273) 6
- Plastics and rubber products manufacturing (NAICS 3261) 3
High-priority air violations recorded in Iowa, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-22 | CF INDUSTRIES NITROGEN LLC - PORT NEAL NITROGEN COMPLEX — high-priority violation on file | SERGEANT BLUFF, Woodbury, IA | HPV day-zero determination | State |
| 2025-08-25 | CF INDUSTRIES NITROGEN LLC - PORT NEAL NITROGEN COMPLEX — high-priority violation on file | SERGEANT BLUFF, Woodbury, IA | HPV day-zero determination | State |
| 2025-04-22 | VAN DIEST SUPPLY CO | WEBSTER CITY, Hamilton, IA | Earliest FRV determination | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.