EPA Air · violations by state, industry and year
Nonmetallic mineral product manufacturing (NAICS 3273): violations in Iowa, 2026
- 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 2026 at a Iowa source whose primary industry code is NAICS 3273. A facility filing more than one industry code is counted under the first one on its record.
Nonmetallic mineral product manufacturing (NAICS 3273) in Iowa, other years
Other industries in Iowa, 2026
- Chemical manufacturing (NAICS 3251) 11
- Food manufacturing (NAICS 3112) 10
- Primary metal manufacturing (NAICS 3315) 5
- Utilities (NAICS 2211) 5
- Food manufacturing (NAICS 3116) 4
- Waste management and remediation (NAICS 5622) 3
High-priority air violations recorded in Iowa, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-05-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | HPV day-zero determination | State |
| 2026-02-18 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | HPV day-zero determination | U.S. EPA |
| 2026-02-03 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | HPV day-zero 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.