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 |
|---|---|---|---|---|
| 2025-05-07 | REWORLD INDIANAPOLIS INCORPORATED | INDIANAPOLIS, Marion, IN | Pass | State |
| 2025-05-07 | REWORLD INDIANAPOLIS INCORPORATED | INDIANAPOLIS, Marion, IN | Pass | State |
| 2025-05-07 | REWORLD INDIANAPOLIS INCORPORATED | INDIANAPOLIS, Marion, IN | Pass | State |
| 2025-05-07 | REWORLD INDIANAPOLIS INCORPORATED | INDIANAPOLIS, Marion, IN | Pass | State |
| 2025-05-06 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-06 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-06 | NEWTON COUNTY LANDFILL | BROOK, Newton, IN | Pass | State |
| 2025-05-02 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Fail | State |
| 2025-05-02 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Fail | State |
| 2025-05-02 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Fail | State |
| 2025-05-02 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-05-02 | REA MAGNET WIRE COMPANY INC — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-02 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-01 | NUCOR STEEL — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Fail | State |
| 2025-05-01 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-05-01 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-05-01 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-05-01 | O-N MINERALS (PORTAGE) COMPANY LLC DBA CARMEUSE LIME & STONE — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-05-01 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-01 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-01 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-05-01 | BIONUTRIENTS AG LLC — high-priority violation on file | WABASH, Wabash, IN | Pass | State |
| 2025-04-29 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-04-29 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-04-29 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2025-04-29 | YAMAHA MARINE PRECISION PROPELLERS INC GREENFIELD A DIVISION | GREENFIELD, Hancock, IN | Pass | State |
| 2025-04-29 | YAMAHA MARINE PRECISION PROPELLERS INC GREENFIELD A DIVISION | GREENFIELD, Hancock, IN | Pass | State |
| 2025-04-29 | YAMAHA MARINE PRECISION PROPELLERS INC GREENFIELD A DIVISION | GREENFIELD, Hancock, IN | Pass | State |
| 2025-04-29 | YAMAHA MARINE PRECISION PROPELLERS INC GREENFIELD A DIVISION | GREENFIELD, Hancock, IN | Pass | State |
| 2025-04-29 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2025-04-29 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2025-04-29 | PROEDGE INC | SHELBY, Lake, IN | Pass | State |
| 2025-04-29 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-04-29 | NOVELIS CORPORATION | TERRE HAUTE, Vigo, IN | Pass | State |
| 2025-04-29 | NOVELIS CORPORATION | TERRE HAUTE, Vigo, IN | Pass | State |
| 2025-04-25 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-25 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-25 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-25 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-25 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-24 | FCA US LLC KOKOMO CASTING PLANT | KOKOMO, Howard, IN | Pass | State |
| 2025-04-24 | FCA US LLC KOKOMO CASTING PLANT | KOKOMO, Howard, IN | Pass | State |
| 2025-04-24 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2025-04-24 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2025-04-24 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Fail | State |
| 2025-04-24 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Fail | State |
| 2025-04-24 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-04-24 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-04-24 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-04-23 | LOUIS DREYFUS COMPANY AGRICULTURAL PRODUCTS LLC | CLAYPOOL, Kosciusko, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-23 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Fail | State |
| 2025-04-23 | UNIVERSITY OF NOTRE DAME DU LAC | NOTRE DAME, St. Joseph, IN | Pass | State |
| 2025-04-23 | UNIVERSITY OF NOTRE DAME DU LAC | NOTRE DAME, St. Joseph, IN | Pass | State |
| 2025-04-23 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-23 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-23 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-22 | PATRICK INDUSTRIES INC DBA GRAVURE INK | LA PORTE, LaPorte, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | INTAT PRECISION INCORPORATED — high-priority violation on file | RUSHVILLE, Rush, IN | Pass | State |
| 2025-04-22 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-22 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-22 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-21 | ATLAS FOUNDRY COMPANY INC | MARION, Grant, IN | Pass | State |
| 2025-04-17 | TWIN BRIDGES RECYCLING AND DISPOSAL FACILITY — high-priority violation on file | DANVILLE, Hendricks, IN | Pass | State |
| 2025-04-17 | TWIN BRIDGES RECYCLING AND DISPOSAL FACILITY — high-priority violation on file | DANVILLE, Hendricks, IN | Pass | State |
| 2025-04-17 | TWIN BRIDGES RECYCLING AND DISPOSAL FACILITY — high-priority violation on file | DANVILLE, Hendricks, IN | Pass | State |
| 2025-04-17 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-04-17 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-04-17 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.