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

Indiana, other years

Air-emissions stack tests recorded in Indiana, 2025

Date	Facility	Where	Kind	Agency
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-22	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-21	HARRISON STEEL CASTINGS COMPANY — high-priority violation on file	ATTICA, Fountain, IN	Pass	State
2025-07-18	MONTPELIER GENERATING STATION LLC — high-priority violation on file	PONETO, Wells, IN	Pass	State
2025-07-18	MONTPELIER GENERATING STATION LLC — high-priority violation on file	PONETO, Wells, IN	Pass	State
2025-07-17	E & B PAVING LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-17	E & B PAVING LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-17	E & B PAVING LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-17	E & B PAVING LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-17	TOPPAN PACKAGING USA INC — high-priority violation on file	EDINBURGH, Johnson, IN	Pass	State
2025-07-17	BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file	WHITING, Lake, IN	Pass	State
2025-07-17	BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file	WHITING, Lake, IN	Pass	State
2025-07-17	BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file	WHITING, Lake, IN	Pass	State
2025-07-17	BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file	WHITING, Lake, IN	Pass	State
2025-07-17	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-17	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-17	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Fail	State
2025-07-17	SIGECO - FB CULLEY GENERATING STATION	NEWBURGH, Warrick, IN	Pass	State
2025-07-16	FCA US LLC KOKOMO CASTING PLANT	KOKOMO, Howard, IN	Pass	State
2025-07-16	FCA US LLC KOKOMO CASTING PLANT	KOKOMO, Howard, IN	Pass	State
2025-07-16	FCA US LLC KOKOMO CASTING PLANT	KOKOMO, Howard, IN	Pass	State
2025-07-16	FCA US LLC KOKOMO CASTING PLANT	KOKOMO, Howard, IN	Pass	State
2025-07-16	FCA US LLC KOKOMO CASTING PLANT	KOKOMO, Howard, IN	Pass	State
2025-07-16	CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file	BURNS HARBOR, Porter, IN	Pass	State
2025-07-16	CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file	BURNS HARBOR, Porter, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-16	WABASH VALLEY ASPHALT	CLOVERDALE, Putnam, IN	Pass	State
2025-07-16	WABASH VALLEY ASPHALT	CLOVERDALE, Putnam, IN	Pass	State
2025-07-16	WABASH VALLEY ASPHALT	CLOVERDALE, Putnam, IN	Pass	State
2025-07-16	WABASH VALLEY ASPHALT	CLOVERDALE, Putnam, IN	Pass	State
2025-07-15	OMNISOURCE LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-15	OMNISOURCE LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-15	OMNISOURCE LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-15	OMNISOURCE LLC	FORT WAYNE, Allen, IN	Pass	State
2025-07-15	DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION	OWENSVILLE, Gibson, IN	Pass	State
2025-07-15	US STEEL CORPORATION GARY WORKS — high-priority violation on file	GARY, Lake, IN	Fail	State
2025-07-15	ALLIED TUBE AND CONDUIT CORPORATION	MERRILLVILLE, Lake, IN	Pass	State
2025-07-15	ALLIED TUBE AND CONDUIT CORPORATION	MERRILLVILLE, Lake, IN	Pass	State
2025-07-15	ALLIED TUBE AND CONDUIT CORPORATION	MERRILLVILLE, Lake, IN	Pass	State
2025-07-15	ALLIED TUBE AND CONDUIT CORPORATION	MERRILLVILLE, Lake, IN	Pass	State
2025-07-15	ALLIED TUBE AND CONDUIT CORPORATION	MERRILLVILLE, Lake, IN	Pass	State
2025-07-15	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-15	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-15	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-15	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2025-07-11	MUNSTER STEEL COMPANY INCORPORATED	HAMMOND, Lake, IN	Pass	State
2025-07-11	MUNSTER STEEL COMPANY INCORPORATED	HAMMOND, Lake, IN	Pass	State
2025-07-11	MUNSTER STEEL COMPANY INCORPORATED	HAMMOND, Lake, IN	Pass	State
2025-07-11	MUNSTER STEEL COMPANY INCORPORATED	HAMMOND, Lake, IN	Pass	State
2025-07-10	DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION	OWENSVILLE, Gibson, IN	Pass	State
2025-07-10	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2025-07-10	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2025-07-10	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Fail	State
2025-07-10	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Fail	State
2025-07-10	CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file	BURNS HARBOR, Porter, IN	Pass	State
2025-07-10	CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file	BURNS HARBOR, Porter, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-10	POET BIOREFINING SHELBYVILLE LLC — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-09	BUCKEYE TERMINALS LLC RACEWAY TERMINAL	INDIANAPOLIS, Marion, IN	Pass	State
2025-07-09	ANR PIPELINE COMPANY SULPHUR SPRINGS COMPRESSOR STATION	SULPHUR SPRINGS, Henry, IN	Pass	State
2025-07-09	ENERGY TRANSFER MARKETING & TERMINALS LP	HUNTINGTON, Huntington, IN	Pass	State
2025-07-09	ENERGY TRANSFER MARKETING & TERMINALS LP	HUNTINGTON, Huntington, IN	Pass	State
2025-07-09	UNILEVER MANUFACTURING US INC	HAMMOND, Lake, IN	Pass	State
2025-07-09	UNILEVER MANUFACTURING US INC	HAMMOND, Lake, IN	Pass	State
2025-07-09	UNILEVER MANUFACTURING US INC	HAMMOND, Lake, IN	Pass	State
2025-07-09	KNAUF INSULATION INCORPORATED — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-09	KNAUF INSULATION INCORPORATED — high-priority violation on file	SHELBYVILLE, Shelby, IN	Pass	State
2025-07-09	SILGAN WHITE CAP CORPORATION	RICHMOND, Wayne, IN	Pass	State
2025-07-09	SILGAN WHITE CAP CORPORATION	RICHMOND, Wayne, IN	Pass	State
2025-07-08	ANR PIPELINE COMPANY LAGRANGE COMPRESSOR STATION — high-priority violation on file	LAGRANGE, LaGrange, IN	Pass	State
2025-07-08	CARDINAL ETHANOL LLC — high-priority violation on file	UNION CITY, Randolph, IN	Pass	State
2025-07-08	CARDINAL ETHANOL LLC — high-priority violation on file	UNION CITY, Randolph, IN	Pass	State
2025-07-08	CARDINAL ETHANOL LLC — high-priority violation on file	UNION CITY, Randolph, IN	Pass	State
2025-07-08	CARDINAL ETHANOL LLC — high-priority violation on file	UNION CITY, Randolph, IN	Pass	State
2025-07-08	SILGAN WHITE CAP CORPORATION	RICHMOND, Wayne, IN	Pass	State
2025-07-03	RIETH RILEY CONSTRUCTION CO INC	INDIANAPOLIS, Marion, IN	Pass	State
2025-07-03	RIETH RILEY CONSTRUCTION CO INC	INDIANAPOLIS, Marion, IN	Pass	State
2025-07-03	RIETH RILEY CONSTRUCTION CO INC	INDIANAPOLIS, Marion, IN	Pass	State
2025-07-03	RIETH RILEY CONSTRUCTION CO INC	INDIANAPOLIS, Marion, IN	Pass	State
2025-06-30	INTAT PRECISION INCORPORATED — high-priority violation on file	RUSHVILLE, Rush, IN	Pass	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.