EPA Air · stack tests by state and year

Air-emissions stack tests in Michigan, 2026

207Stack 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 Michigan 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 Michigan, 2026

Michigan, other years

Air-emissions stack tests recorded in Michigan, 2026

Date	Facility	Where	Kind	Agency
2026-08-13	COVERT GENERATING STATION — high-priority violation on file	COVERT, Van Buren, MI	Pass	State
2026-08-07	CONSUMERS ENERGY - RAY COMPRESSOR STATION	ARMADA, Macomb, MI	Pass	State
2026-08-06	CONSUMERS ENERGY - RAY COMPRESSOR STATION	ARMADA, Macomb, MI	Pass	State
2026-08-06	HOLLAND BPW, 48TH STREET PEAKING STATION	HOLLAND, Allegan, MI	Pass	State
2026-08-04	LANSING BOARD OF WATER AND LIGHT - REO TOWN PLANT	LANSING, Ingham, MI	Pass	State
2026-07-29	ARBOR HILLS LANDFILL, INC. — high-priority violation on file	NORTHVILLE, Washtenaw, MI	Pass	State
2026-07-28	AMRIZE CEMENT INC. — high-priority violation on file	ALPENA, Alpena, MI	Pass	State
2026-07-28	DTE ELECTRIC COMPANY - MONROE POWER PLANT	MONROE, Monroe, MI	Pass	State
2026-07-27	ST. MARYS CEMENT	DETROIT, Wayne, MI	Pass	State
2026-07-27	LANSING BOARD OF WATER & LIGHT - ERICKSON STATION	LANSING, Eaton, MI	Pass	State
2026-07-27	LANSING BOARD OF WATER & LIGHT - ERICKSON STATION	LANSING, Eaton, MI	Pass	State
2026-07-24	KENDRICK PLASTICS	GRAND RAPIDS, Kent, MI	Pass	State
2026-07-23	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-07-22	REAL ALLOY RECYCLING, LLC — high-priority violation on file	COLDWATER, Branch, MI	Pass	State
2026-07-16	DTE ELECTRIC COMPANY - MONROE POWER PLANT	MONROE, Monroe, MI	Pass	State
2026-07-16	CONSUMERS ENERGY - ST. CLAIR COMPRESSOR STATION	IRA, St. Clair, MI	Pass	State
2026-07-15	PHARMACIA & UPJOHN CO LLC, A SUBSIDIARY OF PFIZER	KALAMAZOO, Kalamazoo, MI	Pass	State
2026-07-15	PACKAGING CORPORATION OF AMERICA - FILER CITY MILL	FILER CITY, Manistee, MI	Pass	State
2026-07-15	CONSUMERS ENERGY - ST. CLAIR COMPRESSOR STATION	IRA, St. Clair, MI	Pass	State
2026-07-08	MCGILL ROAD LANDFILL	JACKSON, Jackson, MI	Pass	State
2026-07-07	PYRAMID PAVING & CONTRACTING CO.	ESSEXVILLE, Bay, MI	Pass	State
2026-07-07	J. H. CAMPBELL PLANT	WEST OLIVE, Ottawa, MI	Pass	State
2026-07-07	J. H. CAMPBELL PLANT	WEST OLIVE, Ottawa, MI	Pass	State
2026-07-02	WARREN WASTE WATER TREATMENT PLANT	WARREN, Macomb, MI	Pass	State
2026-06-30	I.I. STANLEY COMPANY, INC.	BATTLE CREEK, Calhoun, MI	Pass	State
2026-06-30	TOYOTA MOTOR NORTH AMERICA R&D	ANN ARBOR, Washtenaw, MI	Pass	State
2026-06-30	BRENT RUN LANDFILL	MONTROSE, Genesee, MI	Pass	State
2026-06-29	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-06-26	EASTERN MI UNIVERSITY — high-priority violation on file	YPSILANTI, Washtenaw, MI	Pass	State
2026-06-26	SUMPTER GENERATING PLANT	BELLEVILLE, Wayne, MI	Pass	State
2026-06-25	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-06-25	DTE ELECTRIC COMPANY - MONROE POWER PLANT	MONROE, Monroe, MI	Pass	State
2026-06-25	PACKAGING CORPORATION OF AMERICA - FILER CITY MILL	FILER CITY, Manistee, MI	Pass	State
2026-06-25	ANR PIPELINE - CENTRAL CHARLTON COMPRESSOR STATION	JOHANNESBURG, Otsego, MI	Pass	State
2026-06-25	PIONEER METAL FINISHING INDUSTRIAL HWY	WARREN, Macomb, MI	Pass	State
2026-06-24	DTE GAS COMPANY - BELLE RIVER MILLS COMPRESSOR STATION	CHINA, St. Clair, MI	Pass	State
2026-06-24	KENT COUNTY WASTE TO ENERGY FACILITY	GRAND RAPIDS, Kent, MI	Pass	State
2026-06-23	AMRIZE CEMENT INC. — high-priority violation on file	ALPENA, Alpena, MI	Pass	State
2026-06-23	CONSUMERS ENERGY D.E. KARN FACILITY	ESSEXVILLE, Bay, MI	Pass	State
2026-06-23	PACKAGING CORPORATION OF AMERICA - FILER CITY MILL	FILER CITY, Manistee, MI	Pass	State
2026-06-23	TILDEN MINING COMPANY LC	ISHPEMING, Marquette, MI	Pass	State
2026-06-19	OTSEGO PAPER INC.	OTSEGO, Allegan, MI	Pass	State
2026-06-17	DTE GAS COMPANY - COLUMBUS COMPRESSOR STATION — high-priority violation on file	COLUMBUS, St. Clair, MI	Pass	State
2026-06-17	UNIVERSITY OF MICHIGAN	ANN ARBOR, Washtenaw, MI	Pass	State
2026-06-17	LACKS ENTERPRISES, INC. — high-priority violation on file	GRAND RAPIDS, Kent, MI	Pass	State
2026-06-17	GRANGER WOOD STREET LANDFILL — high-priority violation on file	LANSING, Clinton, MI	Pass	State
2026-06-16	MARATHON PETROLEUM COMPANY LP — high-priority violation on file	DETROIT, Wayne, MI	Pass	State
2026-06-16	AMRIZE CEMENT INC. — high-priority violation on file	ALPENA, Alpena, MI	Pass	State
2026-06-16	BILLERUD QUINNESEC LLC	QUINNESEC, Dickinson, MI	Pass	State
2026-06-16	GENERAL MOTORS LLC DETROIT-HAMTRAMCK ASSEMBLY	DETROIT, Wayne, MI	Pass	State
2026-06-11	AMRIZE CEMENT INC. — high-priority violation on file	ALPENA, Alpena, MI	Pass	State
2026-06-10	DTE ELECTRIC COMPANY - WILMOT PEAKING FACILITY	KINGSTON, Tuscola, MI	Pass	State
2026-06-10	GRAYLING GENERATING STATION LTD PARTNER	GRAYLING, Crawford, MI	Pass	State
2026-06-10	CONSUMERS ENERGY CO. - ZEELAND GENERATING STATION	ZEELAND, Ottawa, MI	Pass	State
2026-06-04	ST MARYS CEMENT U.S. LLC, CHARLEVOIX PLANT	CHARLEVOIX, Charlevoix, MI	Pass	State
2026-06-04	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-06-04	MICHIGAN STATE UNIVERSITY	EAST LANSING, Ingham, MI	Pass	State
2026-06-04	HOLLAND BPW, 48TH STREET PEAKING STATION	HOLLAND, Allegan, MI	Pass	State
2026-06-04	DTE MICHIGAN POWER, LLC	LUDINGTON, Mason, MI	Pass	State
2026-06-04	INDECK NILES LLC	NILES, Cass, MI	Pass	State
2026-06-03	ST MARYS CEMENT U.S. LLC, CHARLEVOIX PLANT	CHARLEVOIX, Charlevoix, MI	Pass	State
2026-06-03	LOUISIANA-PACIFIC CORP SAGOLA PLANT	SAGOLA, Dickinson, MI	Pass	State
2026-06-03	HOLLAND BOARD OF PUBLIC WORKS-HOLLAND ENERGY PARK	HOLLAND, Ottawa, MI	Pass	State
2026-06-02	DTE GAS COMPANY - WILLOW RUN COMPRESSOR STATION	YPSILANTI, Washtenaw, MI	Pass	State
2026-06-01	PINE TREE ACRES, INC.	LENOX TOWNSHIP, Macomb, MI	Pass	State
2026-05-29	LIFE TECHNOLOGIES CORPORATION	DETROIT, Wayne, MI	Pass	State
2026-05-28	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-05-28	EATON RAPIDS GAS STORAGE SYSTEM	EATON RAPIDS, Ingham, MI	Pass	State
2026-05-28	ARAUCO NORTH AMERICA	GRAYLING, Crawford, MI	Pass	State
2026-05-28	UPPER MICHIGAN ENERGY RESOURCES -A.J. MIHM G.S.	PELKIE, Baraga, MI	Pass	State
2026-05-22	MARATHON PETROLEUM COMPANY LP — high-priority violation on file	DETROIT, Wayne, MI	Pass	State
2026-05-22	LIFE TECHNOLOGIES CORPORATION	DETROIT, Wayne, MI	Pass	State
2026-05-21	MARATHON PETROLEUM COMPANY LP — high-priority violation on file	DETROIT, Wayne, MI	Pass	State
2026-05-21	DTE ELECTRIC COMPANY - MONROE POWER PLANT	MONROE, Monroe, MI	Pass	State
2026-05-20	MARATHON PETROLEUM COMPANY LP — high-priority violation on file	DETROIT, Wayne, MI	Pass	State
2026-05-20	MARATHON PETROLEUM COMPANY LP — high-priority violation on file	DETROIT, Wayne, MI	Pass	State
2026-05-20	FORD MOTOR COMPANY - FLAT ROCK ASSEMBLY	FLAT ROCK, Wayne, MI	Pass	State
2026-05-19	MARATHON PETROLEUM COMPANY LP — high-priority violation on file	DETROIT, Wayne, MI	Pass	State
2026-05-15	FORD MOTOR COMPANY WAYNE COMPLEX	WAYNE, Wayne, MI	Pass	State
2026-05-15	FCA US LLC STERLING HEIGHTS ASSEMBLY PLANT	STERLING HEIGHTS, Macomb, MI	Pass	State
2026-05-14	CONSUMERS ENERGY CO. - JACKSON GENERATING STATION	JACKSON, Jackson, MI	Pass	State
2026-05-13	ST MARYS CEMENT U.S. LLC, CHARLEVOIX PLANT	CHARLEVOIX, Charlevoix, MI	Pass	State
2026-05-13	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-05-13	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-05-13	DTE ELECTRIC COMPANY - GREENWOOD ENERGY CENTER	KENOCKEE, St. Clair, MI	Pass	State
2026-05-13	DENSO MANUFACTURING MICHIGAN, INC.	BATTLE CREEK, Calhoun, MI	Pass	State
2026-05-13	AIR PRODUCTS AND CHEMICALS, INC.	DETROIT, Wayne, MI	Pass	State
2026-05-12	QUANTUM COMPOSITES INC.	BAY CITY, Bay, MI	Pass	State
2026-05-08	CONSUMERS ENERGY - FREEDOM COMPRESSOR STATION	MANCHESTER, Washtenaw, MI	Pass	State
2026-05-07	DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file	CHINA, St. Clair, MI	Pass	State
2026-05-07	RIVERSIDE CARBON SOLUTIONS - TURTLE LAKE CO2	CHESTER TWP, Otsego, MI	Pass	State
2026-05-06	GENERAL MOTORS LLC FLINT ASSEMBLY	FLINT, Genesee, MI	Pass	State
2026-05-06	ANR PIPELINE COMPANY - BRIDGMAN COMPRESSOR STATION	BRIDGMAN, Berrien, MI	Pass	State
2026-05-05	CONSUMERS ENERGY - FREEDOM COMPRESSOR STATION	MANCHESTER, Washtenaw, MI	Pass	State
2026-05-05	ANR PIPELINE COMPANY - HAMILTON COMPRESSOR STATION	HAMILTON, Allegan, MI	Pass	State
2026-05-05	RIVERSIDE ENERGY MICHIGAN, LLC CHESTER 10 CO2 RECOVERY	CHESTER TWP, Otsego, MI	Pass	State
2026-05-05	ENERGY DEVELOPMENTS COOPERSVILLE — high-priority violation on file	COOPERSVILLE, Ottawa, MI	Pass	State
2026-05-05	UNIVERSAL COATING INC.	FLINT, Genesee, MI	Pass	State
2026-04-30	TEMPERFORM LLC	NOVI, Oakland, MI	Pass	State
2026-04-29	MARTIN MARIETTA MAGNESIA SPECIALTIES, LLC	MANISTEE, Manistee, MI	Pass	State

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