EPA Air · stack tests by state, industry and year
Chemical manufacturing (NAICS 3251): stack tests in Iowa, 2026
- 58Stack 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 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
- 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 3111) 3
- Food manufacturing (NAICS 3116) 3
Air-emissions stack tests recorded in Iowa, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-06-18 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Pass | State |
| 2026-06-18 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Pass | State |
| 2026-06-17 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Pass | State |
| 2026-06-17 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Fail | State |
| 2026-06-17 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Pass | State |
| 2026-06-16 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Pass | State |
| 2026-06-11 | POET BIOREFINING - COON RAPIDS, LLC | COON RAPIDS, Guthrie, IA | Pass | State |
| 2026-06-10 | POET BIOREFINING - COON RAPIDS, LLC | COON RAPIDS, Guthrie, IA | Pass | State |
| 2026-06-09 | POET BIOREFINING - COON RAPIDS, LLC | COON RAPIDS, Guthrie, IA | Pass | State |
| 2026-06-08 | POET BIOREFINING - COON RAPIDS, LLC | COON RAPIDS, Guthrie, IA | Pass | State |
| 2026-06-04 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2026-06-04 | POET BIOREFINING - ARTHUR, LLC — high-priority violation on file | ARTHUR, Ida, IA | Pass | State |
| 2026-06-03 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2026-06-03 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2026-06-03 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2026-06-03 | POET BIOREFINING - COON RAPIDS, LLC | COON RAPIDS, Guthrie, IA | Pass | State |
| 2026-06-03 | POET BIOREFINING - ARTHUR, LLC — high-priority violation on file | ARTHUR, Ida, IA | Pass | State |
| 2026-06-03 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Pass | State |
| 2026-06-03 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Pass | State |
| 2026-06-03 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Pass | State |
| 2026-06-03 | VALERO RENEWABLE FUELS CO LLC-FT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2026-06-02 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2026-06-02 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2026-06-02 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Fail | State |
| 2026-05-20 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Fail | State |
| 2026-05-20 | INTEGRATED DNA TECHNOLOGIES | CORALVILLE, Johnson, IA | Pass | State |
| 2026-05-20 | INTEGRATED DNA TECHNOLOGIES | CORALVILLE, Johnson, IA | Pass | State |
| 2026-05-19 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2026-05-08 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2026-05-07 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2026-05-06 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2026-05-06 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2026-05-06 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2026-04-30 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2026-04-30 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2026-04-16 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Pass | State |
| 2026-04-15 | POET BIOREFINING - ARTHUR, LLC — high-priority violation on file | ARTHUR, Ida, IA | Pass | State |
| 2026-04-07 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2026-04-07 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2026-04-07 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2026-04-07 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2026-03-26 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2026-03-26 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2026-03-25 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2026-03-25 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2026-03-18 | INTEGRATED DNA TECHNOLOGIES | CORALVILLE, Johnson, IA | Pass | State |
| 2026-03-18 | VALERO RENEWABLE FUELS CO LLC-FT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2026-03-10 | LOUIS DREYFUS COMPANY GRAND JUNCTION, LLC | GRAND JUNCTION, Greene, IA | Pass | State |
| 2026-02-18 | ELITE OCTANE, LLC — high-priority violation on file | ATLANTIC, Cass, IA | Pass | State |
| 2026-02-18 | ELITE OCTANE, LLC — high-priority violation on file | ATLANTIC, Cass, IA | Pass | State |
| 2026-01-13 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Fail | State |
| 2026-01-13 | POET BIOREFINING - MENLO, LLC | MENLO, Guthrie, IA | Pass | State |
| 2026-01-08 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2026-01-07 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Fail | State |
| 2026-01-07 | PLYMOUTH ENERGY LLC | MERRILL, Plymouth, IA | Pass | State |
| 2026-01-07 | PLYMOUTH ENERGY LLC | MERRILL, Plymouth, IA | Pass | State |
| 2026-01-06 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2026-01-06 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, 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.