EPA Air · stack tests by state, industry and year

Primary metal manufacturing (NAICS 3315): stack tests in Indiana, 2026

89Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Indiana source whose primary industry code is NAICS 3315. A facility filing more than one industry code is counted under the first one on its record.

Primary metal manufacturing (NAICS 3315) in Indiana, other years

Other industries in Indiana, 2026

Air-emissions stack tests recorded in Indiana, 2026

Date	Facility	Where	Kind	Agency
2026-07-22	METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file	AUBURN, DeKalb, IN	Pass	State
2026-06-26	MIDWEST AEROSPACE LLC — high-priority violation on file	MERRILLVILLE, Lake, IN	Pass	State
2026-06-26	MIDWEST AEROSPACE LLC — high-priority violation on file	MERRILLVILLE, Lake, IN	Pass	State
2026-06-26	MIDWEST AEROSPACE LLC — high-priority violation on file	MERRILLVILLE, Lake, IN	Pass	State
2026-06-26	MIDWEST AEROSPACE LLC — high-priority violation on file	MERRILLVILLE, Lake, IN	Pass	State
2026-06-17	HARRISON STEEL CASTINGS COMPANY — high-priority violation on file	ATTICA, Fountain, IN	Pass	State
2026-06-10	KINGSBURY CASTINGS DIVISION	KINGSBURY, LaPorte, IN	Pass	State
2026-06-10	KINGSBURY CASTINGS DIVISION	KINGSBURY, LaPorte, IN	Pass	State
2026-06-10	KINGSBURY CASTINGS DIVISION	KINGSBURY, LaPorte, IN	Pass	State
2026-06-10	KINGSBURY CASTINGS DIVISION	KINGSBURY, LaPorte, IN	Pass	State
2026-06-10	WAUPACA FOUNDRY INC PLANT 5 — high-priority violation on file	TELL CITY, Perry, IN	Pass	State
2026-06-10	WAUPACA FOUNDRY INC PLANT 5 — high-priority violation on file	TELL CITY, Perry, IN	Pass	State
2026-05-13	MATALCO BLUFFTON LLC — high-priority violation on file	BLUFFTON, Wells, IN	Pass	State
2026-05-13	MATALCO BLUFFTON LLC — high-priority violation on file	BLUFFTON, Wells, IN	Pass	State
2026-05-13	MATALCO BLUFFTON LLC — high-priority violation on file	BLUFFTON, Wells, IN	Pass	State
2026-05-13	MATALCO BLUFFTON LLC — high-priority violation on file	BLUFFTON, Wells, IN	Pass	State
2026-04-22	METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file	AUBURN, DeKalb, IN	Pass	State
2026-04-22	METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file	AUBURN, DeKalb, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-22	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	FCA US LLC KOKOMO TRANSMISSION PLANT	KOKOMO, Howard, IN	Pass	State
2026-04-21	NORTH VERNON INDUSTRY CORPORATION	NORTH VERNON, Jennings, IN	Pass	State
2026-04-21	NORTH VERNON INDUSTRY CORPORATION	NORTH VERNON, Jennings, IN	Pass	State
2026-04-20	ATLAS FOUNDRY COMPANY INC	MARION, Grant, IN	Pass	State
2026-04-16	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-16	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-16	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-16	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-16	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-15	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-15	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-15	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-15	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-15	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-14	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-14	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-14	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-14	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-04-14	HOWMET CASTINGS AND SERVICES INCORPORATED	LA PORTE, LaPorte, IN	Pass	State
2026-03-26	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Fail	State
2026-03-26	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-26	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-26	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-26	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-26	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-25	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-25	BCI SOLUTIONS INCORPORATED	BREMEN, Marshall, IN	Pass	State
2026-03-24	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-23	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-23	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-19	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-19	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-19	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-19	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-19	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-19	ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file	ROCHESTER, Fulton, IN	Pass	State
2026-03-19	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-19	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-19	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-19	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-19	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-03-18	DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file	WARSAW, Kosciusko, IN	Pass	State
2026-02-24	GENERAL MOTORS LLC	BEDFORD, Lawrence, IN	Pass	State
2026-02-24	GENERAL MOTORS LLC	BEDFORD, Lawrence, IN	Pass	State
2026-02-24	GENERAL MOTORS LLC	BEDFORD, Lawrence, IN	Pass	State
2026-02-24	GENERAL MOTORS LLC	BEDFORD, Lawrence, IN	Pass	State
2026-02-24	GENERAL MOTORS LLC	BEDFORD, Lawrence, IN	Pass	State
2026-02-13	MIDWEST AEROSPACE LLC — high-priority violation on file	MERRILLVILLE, Lake, IN	Pass	State
2026-01-26	METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file	AUBURN, DeKalb, IN	Pass	State

Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.