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
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	MULZER CRUSHED STONE INCORPORATED (CAPE SANDY) A CRH COMPANY	LEAVENWORTH, Crawford, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-09	UNIVERSITY OF NOTRE DAME DU LAC	NOTRE DAME, St. Joseph, IN	Pass	State
2026-04-09	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-09	MENARD INCORPORATED	TERRE HAUTE, Vigo, IN	Pass	State
2026-04-08	GARFIELD FACILITY LLC — high-priority violation on file	MUNCIE, Delaware, IN	Pass	State
2026-04-08	GARFIELD FACILITY LLC — high-priority violation on file	MUNCIE, Delaware, IN	Pass	State
2026-04-08	GARFIELD FACILITY LLC — high-priority violation on file	MUNCIE, Delaware, IN	Pass	State
2026-04-08	ANR PIPELINE CO CELESTINE COMPRESSOR STATION	CELESTINE, Dubois, IN	Pass	State
2026-04-08	ANR PIPELINE CO CELESTINE COMPRESSOR STATION	CELESTINE, Dubois, IN	Pass	State
2026-04-08	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-08	POET BIOREFINING PORTLAND LLC	PORTLAND, Jay, IN	Pass	State
2026-04-08	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-08	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-08	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-08	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-08	PANHANDLE EASTERN PIPELINE COMPANY	MONTEZUMA, Parke, IN	Pass	State
2026-04-08	PANHANDLE EASTERN PIPELINE COMPANY	MONTEZUMA, Parke, IN	Pass	State
2026-04-08	UNIVERSITY OF NOTRE DAME DU LAC	NOTRE DAME, St. Joseph, IN	Pass	State
2026-04-08	UNIVERSITY OF NOTRE DAME DU LAC	NOTRE DAME, St. Joseph, IN	Pass	State
2026-04-08	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-08	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-08	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-07	CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file	EAST CHICAGO, Lake, IN	Pass	State
2026-04-07	CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file	EAST CHICAGO, Lake, IN	Pass	State
2026-04-07	CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file	EAST CHICAGO, Lake, IN	Pass	State
2026-04-07	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-07	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-07	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-07	NUCOR STEEL — high-priority violation on file	CRAWFORDSVILLE, Montgomery, IN	Pass	State
2026-04-07	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-07	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-07	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-07	PRIMARY PRODUCTS INGREDIENTS AMERICAS, LLC	LAFAYETTE, Tippecanoe, IN	Pass	State
2026-04-07	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	NEWBURGH, Warrick, IN	Pass	State
2026-04-06	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-06	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-06	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-06	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-06	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-06	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-06	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Fail	State
2026-04-06	CITY OF FORT WAYNE THREE RIVERS FILTRATION PLANT — high-priority violation on file	FORT WAYNE, Allen, IN	Pass	State
2026-04-06	CITY OF FORT WAYNE THREE RIVERS FILTRATION PLANT — high-priority violation on file	FORT WAYNE, Allen, IN	Pass	State
2026-04-06	CITY OF FORT WAYNE THREE RIVERS FILTRATION PLANT — high-priority violation on file	FORT WAYNE, Allen, IN	Pass	State
2026-04-03	GARFIELD FACILITY LLC — high-priority violation on file	MUNCIE, Delaware, IN	Pass	State
2026-04-03	GARFIELD FACILITY LLC — high-priority violation on file	MUNCIE, Delaware, IN	Pass	State
2026-04-02	GRAIN PROCESSING CORPORATION — high-priority violation on file	WASHINGTON, Daviess, IN	Pass	State
2026-04-02	GRAIN PROCESSING CORPORATION — high-priority violation on file	WASHINGTON, Daviess, IN	Pass	State
2026-04-02	GRAIN PROCESSING CORPORATION — high-priority violation on file	WASHINGTON, Daviess, IN	Pass	State
2026-04-02	BUCKEYE TERMINALS LLC EAST CHICAGO TERMINAL	EAST CHICAGO, Lake, IN	Pass	State
2026-04-02	MPLX TERMINALS LLC - INDIANAPOLIS TERMINAL	INDIANAPOLIS, Marion, IN	Pass	State
2026-04-02	MPLX TERMINALS LLC - INDIANAPOLIS TERMINAL	INDIANAPOLIS, Marion, IN	Pass	State
2026-04-02	CARDINAL ETHANOL LLC — high-priority violation on file	UNION CITY, Randolph, IN	Pass	State
2026-04-02	WASTE NO ENERGY LLC	MONTICELLO, White, IN	Pass	State
2026-04-02	WASTE NO ENERGY LLC	MONTICELLO, White, IN	Pass	State
2026-04-02	WASTE NO ENERGY LLC	MONTICELLO, White, IN	Pass	State
2026-04-01	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-01	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-01	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-01	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-01	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-01	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Pass	State
2026-04-01	SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file	NEW HAVEN, Allen, IN	Fail	State

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