EPA Air · stack tests by state and year

Air-emissions stack tests in Indiana, 2026

1,010Stack 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 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Indiana, 2026

Indiana, other years

Air-emissions stack tests recorded in Indiana, 2026

Date	Facility	Where	Kind	Agency
2026-08-04	JH RUDOLPH & COMPANY INCORPORATED PETERSBURG	DALE, Spencer, IN	Pass	State
2026-08-04	JH RUDOLPH & COMPANY INCORPORATED PETERSBURG	DALE, Spencer, IN	Pass	State
2026-08-04	JH RUDOLPH & COMPANY INCORPORATED PETERSBURG	DALE, Spencer, IN	Pass	State
2026-08-04	JH RUDOLPH & COMPANY INCORPORATED PETERSBURG	DALE, Spencer, IN	Pass	State
2026-07-31	SIGECO - FB CULLEY GENERATING STATION	NEWBURGH, Warrick, IN	Pass	State
2026-07-24	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-24	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-24	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-23	GRAIN PROCESSING CORPORATION — high-priority violation on file	WASHINGTON, Daviess, IN	Fail	State
2026-07-23	MILESTONE CONTRACTORS LP	INDIANAPOLIS, Marion, IN	Pass	State
2026-07-23	MILESTONE CONTRACTORS LP	INDIANAPOLIS, Marion, IN	Pass	State
2026-07-23	MILESTONE CONTRACTORS LP	INDIANAPOLIS, Marion, IN	Pass	State
2026-07-23	MILESTONE CONTRACTORS LP	INDIANAPOLIS, Marion, IN	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file	AUBURN, DeKalb, IN	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	THE ANDERSONS RENEWABLES LLC — high-priority violation on file	LOGANSPORT, Cass, IN	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	MOUNT VERNON, Posey, IN	Pass	State
2026-07-17	WABASH STEEL COMPANY LLC — high-priority violation on file	VINCENNES, Knox, IN	Pass	State
2026-07-17	WABASH STEEL COMPANY LLC — high-priority violation on file	VINCENNES, Knox, IN	Pass	State
2026-07-17	WABASH STEEL COMPANY LLC — high-priority violation on file	VINCENNES, Knox, IN	Pass	State
2026-07-17	WABASH STEEL COMPANY LLC — high-priority violation on file	VINCENNES, Knox, IN	Pass	State
2026-07-16	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-16	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-16	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-15	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-15	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-15	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-14	HALL CONTRACTING OF KENTUCKY INCORPORATED	CHARLESTOWN, Clark, IN	Pass	State
2026-07-14	HALL CONTRACTING OF KENTUCKY INCORPORATED	CHARLESTOWN, Clark, IN	Pass	State
2026-07-14	HALL CONTRACTING OF KENTUCKY INCORPORATED	CHARLESTOWN, Clark, IN	Pass	State
2026-07-14	HALL CONTRACTING OF KENTUCKY INCORPORATED	CHARLESTOWN, Clark, IN	Pass	State
2026-07-13	CATERPILLAR REMAN POWERTRAIN INDIANA INC	FRANKLIN, Johnson, IN	Pass	State
2026-07-10	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-10	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-10	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-10	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-10	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-10	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-10	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-10	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-10	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-10	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-09	ANR PIPELINE COMPANY SULPHUR SPRINGS COMPRESSOR STATION	SULPHUR SPRINGS, Henry, IN	Pass	State
2026-07-09	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-09	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-09	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-09	TATE & LYLE SOLUTIONS USA LLC — high-priority violation on file	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-07-09	TATE & LYLE SOLUTIONS USA LLC — high-priority violation on file	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-07-09	TATE & LYLE SOLUTIONS USA LLC — high-priority violation on file	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-07-08	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-08	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-08	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-08	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-08	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State
2026-07-08	ANR PIPELINE COMPANY LAGRANGE COMPRESSOR STATION — high-priority violation on file	LAGRANGE, LaGrange, IN	Pass	State
2026-07-08	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-08	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-08	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-08	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-08	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-08	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-08	CLEVELAND-CLIFFS STEEL LLC	EAST CHICAGO, Lake, IN	Pass	State
2026-07-08	CLEVELAND-CLIFFS STEEL LLC	EAST CHICAGO, Lake, IN	Pass	State
2026-07-08	CLEVELAND-CLIFFS STEEL LLC	EAST CHICAGO, Lake, IN	Pass	State
2026-07-08	BUCKEYE TERMINALS LLC EAST CHICAGO TERMINAL	EAST CHICAGO, Lake, IN	Pass	State
2026-07-08	TATE & LYLE SOLUTIONS USA LLC — high-priority violation on file	LAFAYETTE, Tippecanoe, IN	Fail	State
2026-07-08	TATE & LYLE SOLUTIONS USA LLC — high-priority violation on file	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-07-07	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-07	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-07	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-07	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-07	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-07	CARGILL INC — high-priority violation on file	HAMMOND, Lake, IN	Pass	State
2026-07-07	RESCO PRODUCTS INCORPORATED	HAMMOND, Lake, IN	Pass	State
2026-07-07	RESCO PRODUCTS INCORPORATED	HAMMOND, Lake, IN	Pass	State
2026-07-07	CLEVELAND-CLIFFS STEEL LLC	EAST CHICAGO, Lake, IN	Pass	State
2026-07-07	CLEVELAND-CLIFFS STEEL LLC	EAST CHICAGO, Lake, IN	Pass	State
2026-07-07	CLEVELAND-CLIFFS STEEL LLC	EAST CHICAGO, Lake, IN	Pass	State
2026-07-02	METALS AND ADDITIVES LLC — high-priority violation on file	BRAZIL, Clay, IN	Pass	State

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