EPA Air · stack tests by state, industry and year
Chemical manufacturing (NAICS 3251): stack tests in Iowa, 2025
- 171Stack 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 2025 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, 2025
- Utilities (NAICS 2211) 110
- Food manufacturing (NAICS 3112) 49
- Primary metal manufacturing (NAICS 3311) 12
- Utilities (NAICS 2213) 11
- Chemical manufacturing (NAICS 3259) 10
- Primary metal manufacturing (NAICS 3313) 9
- Pipeline transportation (NAICS 4862) 9
- Food manufacturing (NAICS 3111) 9
- Data processing and hosting (NAICS 5182) 9
- Nonmetallic mineral product manufacturing (NAICS 3274) 8
- Primary metal manufacturing (NAICS 3315) 8
- Chemical manufacturing (NAICS 3253) 8
- Publishing industries (NAICS 5112) 6
- Machinery manufacturing (NAICS 3331) 6
- Professional, scientific and technical services (NAICS 5419) 6
- Nonmetallic mineral product manufacturing (NAICS 3273) 6
- Hospitals (NAICS 6221) 5
- Mining and quarrying (NAICS 2123) 5
- Agriculture and forestry support (NAICS 1151) 5
- Food manufacturing (NAICS 3116) 4
- Petroleum and coal products manufacturing (NAICS 3241) 3
- Nonmetallic mineral product manufacturing (NAICS 3279) 3
- Justice, public order and safety (NAICS 9221) 3
Air-emissions stack tests recorded in Iowa, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-06-12 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2025-06-12 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2025-06-12 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Pass | State |
| 2025-06-11 | POET BIOREFINING - FAIRBANK, LLC | FAIRBANK, Buchanan, IA | Pass | State |
| 2025-06-11 | BIG RIVER UNITED ENERGY LLC-DYERSVILLE | DYERSVILLE, Dubuque, IA | Pass | State |
| 2025-06-11 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2025-06-11 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Fail | State |
| 2025-06-10 | BIG RIVER UNITED ENERGY LLC-DYERSVILLE | DYERSVILLE, Dubuque, IA | Pass | State |
| 2025-06-10 | VALERO RENEWABLE FUELS LLC-CHARLES CITY | CHARLES CITY, Floyd, IA | Pass | State |
| 2025-06-10 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2025-06-10 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Pass | State |
| 2025-06-09 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2025-06-08 | GREEN PLAINS ETHANOL STORAGE, LLC (GP SUPERIOR) | SUPERIOR, Dickinson, IA | Pass | State |
| 2025-06-05 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Pass | State |
| 2025-06-05 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-06-05 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2025-06-05 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2025-06-05 | POET BIOREFINING - ARTHUR, LLC — high-priority violation on file | ARTHUR, Ida, IA | Pass | State |
| 2025-06-05 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Pass | State |
| 2025-06-05 | SOUTHWEST IOWA RENEWABLE ENERGY — high-priority violation on file | COUNCIL BLUFFS, Pottawattamie, IA | Pass | State |
| 2025-06-04 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Pass | State |
| 2025-06-04 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Fail | State |
| 2025-06-04 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Pass | State |
| 2025-06-04 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-06-04 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2025-06-04 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2025-06-04 | BIG RIVER UNITED ENERGY LLC-W BURLINGTON | WEST BURLINGTON, Des Moines, IA | Pass | State |
| 2025-06-04 | BIG RIVER UNITED ENERGY LLC-W BURLINGTON | WEST BURLINGTON, Des Moines, IA | Pass | State |
| 2025-06-04 | BIG RIVER UNITED ENERGY LLC-W BURLINGTON | WEST BURLINGTON, Des Moines, IA | Pass | State |
| 2025-06-04 | GREEN PLAINS ETHANOL STORAGE, LLC (GP SUPERIOR) | SUPERIOR, Dickinson, IA | Pass | State |
| 2025-06-04 | GREEN PLAINS ETHANOL STORAGE, LLC (GP SUPERIOR) | SUPERIOR, Dickinson, IA | Pass | State |
| 2025-06-04 | POET BIOREFINING - MENLO, LLC | MENLO, Guthrie, IA | Pass | State |
| 2025-06-04 | POET BIOREFINING - ARTHUR, LLC — high-priority violation on file | ARTHUR, Ida, IA | Pass | State |
| 2025-06-04 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Pass | State |
| 2025-06-04 | SOUTHWEST IOWA RENEWABLE ENERGY — high-priority violation on file | COUNCIL BLUFFS, Pottawattamie, IA | Pass | State |
| 2025-06-03 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-06-03 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-06-03 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2025-06-03 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2025-06-03 | BIG RIVER UNITED ENERGY LLC-W BURLINGTON | WEST BURLINGTON, Des Moines, IA | Pass | State |
| 2025-06-03 | BIG RIVER UNITED ENERGY LLC-W BURLINGTON | WEST BURLINGTON, Des Moines, IA | Pass | State |
| 2025-06-03 | BIG RIVER UNITED ENERGY LLC-W BURLINGTON | WEST BURLINGTON, Des Moines, IA | Pass | State |
| 2025-05-16 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Pass | State |
| 2025-05-16 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Pass | State |
| 2025-05-13 | LOUIS DREYFUS COMPANY GRAND JUNCTION, LLC | GRAND JUNCTION, Greene, IA | Pass | State |
| 2025-05-08 | POET BIOREFINING - FAIRBANK, LLC | FAIRBANK, Buchanan, IA | Pass | State |
| 2025-05-01 | POET BIOREFINING - MENLO, LLC | MENLO, Guthrie, IA | Pass | State |
| 2025-05-01 | POET BIOREFINING - MENLO, LLC | MENLO, Guthrie, IA | Pass | State |
| 2025-04-24 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Pass | State |
| 2025-04-24 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Pass | State |
| 2025-04-22 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Fail | State |
| 2025-04-22 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Fail | State |
| 2025-04-14 | EQUISTAR CHEMICALS LP | CLINTON, Clinton, IA | Pass | State |
| 2025-03-27 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Pass | State |
| 2025-03-26 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Pass | State |
| 2025-03-25 | VALERO RENEWABLE FUELS CO LLC-FT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2025-03-19 | LOUIS DREYFUS COMPANY GRAND JUNCTION, LLC | GRAND JUNCTION, Greene, IA | Pass | State |
| 2025-03-18 | GREEN PLAINS ETHANOL STORAGE, LLC (GP SUPERIOR) | SUPERIOR, Dickinson, IA | Pass | State |
| 2025-03-06 | POET BIOREFINING - GOWRIE, LLC — high-priority violation on file | GOWRIE, Webster, IA | Pass | State |
| 2025-02-20 | POET BIOREFINING - GOWRIE, LLC — high-priority violation on file | GOWRIE, Webster, IA | Fail | State |
| 2025-02-19 | PLYMOUTH ENERGY LLC | MERRILL, Plymouth, IA | Pass | State |
| 2025-02-18 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2025-02-18 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2025-02-05 | CENTRAL IOWA RENEWABLE ENERGY (CORN) LP | GOLDFIELD, Wright, IA | Pass | State |
| 2025-01-31 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-01-30 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-01-30 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-01-29 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Fail | State |
| 2025-01-28 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2025-01-15 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2025-01-15 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
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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.