EPA Air · stack tests by state and year
Air-emissions stack tests in Indiana, 2025
- 1,619Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Indiana during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Indiana, 2025
- Lake County 154
- Marion County 97
- Shelby County 86
- DeKalb County 77
- Wabash County 72
- Posey County 67
- Porter County 54
- Wayne County 53
- Crawford County 47
- Rush County 44
- Allen County 42
- Noble County 40
- Warrick County 40
- Knox County 36
- Huntington County 36
- Howard County 35
- White County 31
- Kosciusko County 30
- Fulton County 29
- Morgan County 26
- Montgomery County 25
- Johnson County 24
- Elkhart County 22
- Clark County 22
- St. Joseph County 20
- Tippecanoe County 20
- Wells County 20
- Cass County 19
- Clinton County 18
- Grant County 17
- Decatur County 16
- Randolph County 16
- Vigo County 16
- Dubois County 15
- LaPorte County 14
- Sullivan County 14
- Henry County 14
- Lawrence County 13
- Fountain County 12
- Jasper County 12
- Steuben County 11
- Marshall County 10
- Bartholomew County 10
- Spencer County 10
- Boone County 10
- Monroe County 9
- Vermillion County 8
- Jennings County 8
- Whitley County 8
- Daviess County 7
- Hendricks County 7
- Pike County 7
- Gibson County 7
- Vanderburgh County 5
- Martin County 5
- Madison County 5
- Putnam County 5
- Hancock County 5
- Jay County 5
- Scott County 4
- Perry County 4
- Franklin County 4
- Dearborn County 4
- Delaware County 3
Indiana, other years
Air-emissions stack tests recorded in Indiana, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-03-18 | ZIMMERMAN ENERGY LLC — high-priority violation on file | ARGOS, Marshall, IN | Pass | State |
| 2025-03-18 | ZIMMERMAN ENERGY LLC — high-priority violation on file | ARGOS, Marshall, IN | Pass | State |
| 2025-03-18 | ZIMMERMAN ENERGY LLC — high-priority violation on file | ARGOS, Marshall, IN | Pass | State |
| 2025-03-18 | RICHMOND CASTING COMPANY — high-priority violation on file | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-18 | RICHMOND CASTING COMPANY — high-priority violation on file | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-18 | RICHMOND CASTING COMPANY — high-priority violation on file | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-18 | RICHMOND CASTING COMPANY — high-priority violation on file | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-14 | EP GRAPHICS INCORPORATED | BERNE, Adams, IN | Pass | State |
| 2025-03-13 | BCI SOLUTIONS INCORPORATED | BREMEN, Marshall, IN | Pass | State |
| 2025-03-12 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-12 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-12 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-12 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-12 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-12 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-11 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-11 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-11 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-11 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-11 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-11 | GENERAL MOTORS LLC FORT WAYNE ASSEMBLY — high-priority violation on file | ROANOKE, Huntington, IN | Pass | State |
| 2025-03-07 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-07 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-06 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-03-06 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-03-06 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-03-06 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-03-06 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Pass | State |
| 2025-03-06 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Fail | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | CRANE, Martin, IN | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | CRANE, Martin, IN | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | CRANE, Martin, IN | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | CRANE, Martin, IN | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | CRANE, Martin, IN | Pass | State |
| 2025-03-06 | TATE & LYLE SOLUTIONS USA LLC — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2025-03-06 | TATE & LYLE SOLUTIONS USA LLC — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2025-03-05 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-03-05 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-03-05 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-03-05 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Fail | State |
| 2025-03-05 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Pass | State |
| 2025-03-05 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-03-05 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-03-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | AUBURN, DeKalb, IN | Pass | State |
| 2025-03-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | AUBURN, DeKalb, IN | Pass | State |
| 2025-03-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | AUBURN, DeKalb, IN | Pass | State |
| 2025-03-04 | ANR PIPELINE CO CELESTINE COMPRESSOR STATION | CELESTINE, Dubois, IN | Pass | State |
| 2025-03-04 | ANR PIPELINE CO CELESTINE COMPRESSOR STATION | CELESTINE, Dubois, IN | Pass | State |
| 2025-03-04 | ANR PIPELINE CO CELESTINE COMPRESSOR STATION | CELESTINE, Dubois, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-28 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-27 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2025-02-26 | INDIANA AUTOMOTIVE FASTENERS INC — high-priority violation on file | GREENFIELD, Hancock, IN | Pass | State |
| 2025-02-25 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2025-02-25 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2025-02-25 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2025-02-25 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2025-02-25 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2025-02-20 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-02-20 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-02-19 | AISIN CHEMICAL INDIANA LLC | CROTHERSVILLE, Jackson, IN | Pass | State |
| 2025-02-13 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2025-02-11 | POET BIOREFINING NORTH MANCHESTER LLC — high-priority violation on file | NORTH MANCHESTER, Wabash, IN | Pass | State |
| 2025-02-11 | POET BIOREFINING NORTH MANCHESTER LLC — high-priority violation on file | NORTH MANCHESTER, Wabash, IN | Pass | State |
| 2025-02-11 | POET BIOREFINING NORTH MANCHESTER LLC — high-priority violation on file | NORTH MANCHESTER, Wabash, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | REED MINERALS LLC | GARY, Lake, IN | Pass | State |
| 2025-02-07 | REED MINERALS LLC | GARY, Lake, IN | Pass | State |
| 2025-02-07 | REED MINERALS LLC | GARY, Lake, IN | Pass | State |
| 2025-02-07 | REED MINERALS LLC | GARY, Lake, IN | Pass | State |
| 2025-02-06 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-06 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-06 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-06 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-06 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-06 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-06 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.