EPA Air · violations by state, industry and year
Chemical manufacturing (NAICS 3251): violations in Iowa, 2026
- 11Violations
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 3251. A facility filing more than one industry code is counted under the first one on its record.
Chemical manufacturing (NAICS 3251) in Iowa, other years
Other industries in Iowa, 2026
- Food manufacturing (NAICS 3112) 10
- Primary metal manufacturing (NAICS 3315) 5
- Utilities (NAICS 2211) 5
- Food manufacturing (NAICS 3116) 4
- Nonmetallic mineral product manufacturing (NAICS 3273) 3
- Waste management and remediation (NAICS 5622) 3
High-priority air violations recorded in Iowa, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-08-11 | POET BIOREFINING CORNING — high-priority violation on file | CORNING, Adams, IA | Earliest FRV determination | State |
| 2026-08-10 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Earliest FRV determination | State |
| 2026-07-30 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Earliest FRV determination | State |
| 2026-07-27 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Earliest FRV determination | State |
| 2026-07-07 | POET BIOREFINING - LIBERTY (EMMETSBURG) — high-priority violation on file | EMMETSBURG, Palo Alto, IA | Earliest FRV determination | State |
| 2026-06-22 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Earliest FRV determination | State |
| 2026-04-21 | POET BIOREFINING - GOWRIE, LLC — high-priority violation on file | GOWRIE, Webster, IA | Earliest FRV determination | State |
| 2026-04-13 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Earliest FRV determination | State |
| 2026-03-11 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Earliest FRV determination | State |
| 2026-03-02 | POET BIOREFINING - ARTHUR, LLC — high-priority violation on file | ARTHUR, Ida, IA | Earliest FRV determination | State |
| 2026-01-27 | DANISCO US, INC. — high-priority violation on file | CEDAR RAPIDS, Linn, IA | Earliest FRV determination | Local |
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.