EPA Air · stack tests by state and year
Air-emissions stack tests in Michigan, 2025
- 387Stack 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 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Michigan, 2025
- Wayne County 72
- St. Clair County 30
- Monroe County 18
- Kent County 18
- Ottawa County 16
- Calhoun County 15
- Macomb County 14
- Washtenaw County 12
- Midland County 11
- Alpena County 11
- Crawford County 10
- Manistee County 10
- Oakland County 10
- Kalamazoo County 9
- Genesee County 8
- Bay County 8
- Delta County 8
- Mason County 6
- Marquette County 6
- Dickinson County 6
- Charlevoix County 6
- Ingham County 6
- Otsego County 5
- Tuscola County 5
- Eaton County 5
- Allegan County 5
- Cass County 4
- Van Buren County 4
- Sanilac County 4
- Huron County 4
- Clare County 4
- Montcalm County 3
- Berrien County 3
- Shiawassee County 3
- Kalkaska County 3
Michigan, other years
Air-emissions stack tests recorded in Michigan, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-06-13 | DTE MICHIGAN POWER, LLC | LUDINGTON, Mason, MI | Pass | State |
| 2025-06-13 | MICHIGAN ENVIRONS, INC | MENOMINEE, Menominee, MI | Pass | State |
| 2025-06-13 | IIP-MI 4, LLC | WARREN, Macomb, MI | Pass | State |
| 2025-06-12 | PIONEER METAL FINISHING INDUSTRIAL HWY | WARREN, Macomb, MI | Pass | State |
| 2025-06-12 | MAGNA DEXSYS (DELTA EXTERIOR SYSTEMS) | LANSING, Eaton, MI | Pass | State |
| 2025-06-11 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-06-11 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2025-06-11 | ZEELAND FARM SERVICES, INC. — high-priority violation on file | ZEELAND, Ottawa, MI | Pass | State |
| 2025-06-11 | HOLLAND BOARD OF PUBLIC WORKS-HOLLAND ENERGY PARK | HOLLAND, Ottawa, MI | Pass | State |
| 2025-06-11 | NORTH AMERICAN NATURAL RESOURCES -VENICE PARK 9526 GENERATING STATION | LENNON, Shiawassee, MI | Pass | State |
| 2025-06-10 | LAMBDA ENERGY RESOURCES, LLC - KALKASKA GAS PLANT | KALKASKA, Kalkaska, MI | Pass | State |
| 2025-06-10 | STURGIS MUNICIPAL POWER PLANT | STURGIS, St. Joseph, MI | Pass | State |
| 2025-06-06 | SUMPTER GENERATING PLANT | BELLEVILLE, Wayne, MI | Pass | State |
| 2025-06-05 | FORD MOTOR COMPANY - RESEARCH & DEVELOPMENT CENTER | DEARBORN, Wayne, MI | Pass | State |
| 2025-06-04 | POST FOODS | BATTLE CREEK, Calhoun, MI | Fail | State |
| 2025-06-04 | TRINSEO LLC | MIDLAND, Midland, MI | Pass | State |
| 2025-06-04 | NORTH AMERICAN -- CENTRAL, LLC - CENTRAL GENERATING STATION | PIERSON, Montcalm, MI | Pass | State |
| 2025-05-30 | GUARDIAN INDUSTRIES-CARLETON | CARLETON, Monroe, MI | Pass | State |
| 2025-05-30 | FORD MOTOR COMPANY - FLAT ROCK ASSEMBLY | FLAT ROCK, Wayne, MI | Pass | State |
| 2025-05-29 | J. H. CAMPBELL PLANT | WEST OLIVE, Ottawa, MI | Pass | State |
| 2025-05-29 | BIMBO BAKERIES USA, INC. | GRAND RAPIDS, Kent, MI | Pass | State |
| 2025-05-29 | BAY CITY ELECTRIC LIGHT & POWER | BAY CITY, Bay, MI | Pass | State |
| 2025-05-29 | BASF CORP | LIVONIA, Wayne, MI | Pass | State |
| 2025-05-29 | BAY CITY ELECTRIC LIGHT & POWER | BAY CITY, Bay, MI | Pass | State |
| 2025-05-29 | COVERT GENERATING STATION — high-priority violation on file | COVERT, Van Buren, MI | Pass | State |
| 2025-05-28 | AIR PRODUCTS AND CHEMICALS, INC. | DETROIT, Wayne, MI | Pass | State |
| 2025-05-23 | DETROIT THERMAL BEACON HEATING PLANT | DETROIT, Wayne, MI | Pass | State |
| 2025-05-22 | OCCIDENTAL CHEMICAL CORPORATION | LUDINGTON, Mason, MI | Pass | State |
| 2025-05-22 | OCCIDENTAL CHEMICAL CORPORATION | LUDINGTON, Mason, MI | Pass | State |
| 2025-05-22 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2025-05-22 | GENESEE POWER STATION LIMITED PARTNERSHIP | FLINT, Genesee, MI | Pass | State |
| 2025-05-21 | BILLERUD ESCANABA LLC | ESCANABA, Delta, MI | Pass | State |
| 2025-05-21 | GENERAL MOTORS LLC FLINT ASSEMBLY | FLINT, Genesee, MI | Pass | State |
| 2025-05-21 | OCCIDENTAL CHEMICAL CORPORATION | LUDINGTON, Mason, MI | Pass | State |
| 2025-05-21 | TILDEN MINING COMPANY LC | ISHPEMING, Marquette, MI | Pass | State |
| 2025-05-21 | CONSUMERS ENERGY CO. - JACKSON GENERATING STATION | JACKSON, Jackson, MI | Pass | State |
| 2025-05-21 | UPPER MICHIGAN ENERGY RESOURCES -A.J. MIHM G.S. | PELKIE, Baraga, MI | Pass | State |
| 2025-05-20 | BILLERUD ESCANABA LLC | ESCANABA, Delta, MI | Pass | State |
| 2025-05-16 | GENERAL MOTORS LLC - PONTIAC NORTH CAMPUS | PONTIAC, Oakland, MI | Pass | State |
| 2025-05-15 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-05-15 | BILLERUD QUINNESEC LLC | QUINNESEC, Dickinson, MI | Pass | State |
| 2025-05-15 | CONSUMERS ENERGY CO. - JACKSON GENERATING STATION | JACKSON, Jackson, MI | Pass | State |
| 2025-05-15 | POET BIOREFINING - CARO, LLC | CARO, Tuscola, MI | Pass | State |
| 2025-05-15 | DTE GAS COMPANY - WILLOW RUN COMPRESSOR STATION | YPSILANTI, Washtenaw, MI | Pass | State |
| 2025-05-15 | VECTOR PIPELINE L.P., ATHENS COMPRESSOR STATION | ATHENS, Calhoun, MI | Pass | State |
| 2025-05-14 | DTE GAS COMPANY - COLUMBUS COMPRESSOR STATION — high-priority violation on file | COLUMBUS, St. Clair, MI | Pass | State |
| 2025-05-13 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-05-13 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-05-13 | VECTOR PIPELINE L.P. WASHINGTON COMPRESSOR STATION | WASHINGTON, Macomb, MI | Pass | State |
| 2025-05-12 | DTE GAS COMPANY - WILLOW RUN COMPRESSOR STATION | YPSILANTI, Washtenaw, MI | Pass | State |
| 2025-05-09 | DART CONTAINER CORPORATION OF MICHIGAN | MASON, Ingham, MI | Pass | State |
| 2025-05-07 | CLEVELAND-CLIFFS STEEL CORPORATION DEARBORN WORKS | DEARBORN, Wayne, MI | Pass | State |
| 2025-05-06 | ENERGY DEVELOPMENTS COOPERSVILLE — high-priority violation on file | COOPERSVILLE, Ottawa, MI | Pass | State |
| 2025-05-01 | OCCIDENTAL CHEMICAL CORPORATION | LUDINGTON, Mason, MI | Pass | State |
| 2025-05-01 | OCCIDENTAL CHEMICAL CORPORATION | LUDINGTON, Mason, MI | Pass | State |
| 2025-04-30 | PROAMPAC MICHIGAN INC. | BATTLE CREEK, Calhoun, MI | Pass | State |
| 2025-04-30 | RIVERSIDE ENERGY MICHIGAN, LLC CHESTER 10 CO2 RECOVERY | CHESTER TWP, Otsego, MI | Pass | State |
| 2025-04-29 | ST MARYS CEMENT U.S. LLC, CHARLEVOIX PLANT | CHARLEVOIX, Charlevoix, MI | Pass | State |
| 2025-04-29 | GRAYLING GENERATING STATION LTD PARTNER | GRAYLING, Crawford, MI | Pass | State |
| 2025-04-25 | EES COKE BATTERY, LLC — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-04-24 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | MONROE, Monroe, MI | Pass | State |
| 2025-04-24 | WASHINGTON 10 STORAGE CORPORATION | WASHINGTON, Macomb, MI | Pass | State |
| 2025-04-24 | ARVRON INC | GRAND RAPIDS, Kent, MI | Pass | State |
| 2025-04-23 | GRAPHIC PACKAGING INTERNATIONAL LLC | KALAMAZOO, Kalamazoo, MI | Pass | State |
| 2025-04-23 | GRAPHIC PACKAGING INTERNATIONAL LLC | KALAMAZOO, Kalamazoo, MI | Pass | State |
| 2025-04-23 | GERDAU MACSTEEL MONROE MILL — high-priority violation on file | MONROE, Monroe, MI | Pass | State |
| 2025-04-23 | EES COKE BATTERY, LLC — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-04-22 | OTSEGO PAPER INC. | OTSEGO, Allegan, MI | Pass | State |
| 2025-04-22 | MOLD MASTERS COMPANY — high-priority violation on file | LAPEER, Lapeer, MI | Pass | State |
| 2025-04-16 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2025-04-16 | LOUISIANA-PACIFIC CORP NEWBERRY PLANT — high-priority violation on file | NEWBERRY, Luce, MI | Pass | State |
| 2025-04-16 | CONSUMERS ENERGY - WHITE PIGEON COMPRESSOR STATION — high-priority violation on file | WHITE PIGEON, St. Joseph, MI | Pass | State |
| 2025-04-16 | HYDRO ALUMINUM METALS USA, LLC | CASSOPOLIS, Cass, MI | Pass | State |
| 2025-04-15 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-04-15 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2025-04-15 | WESTERN MICHIGAN UNIVERSITY | KALAMAZOO, Kalamazoo, MI | Pass | State |
| 2025-04-15 | ENERGY DEVELOPMENTS BYRON CENTER, LLC | BYRON CENTER, Kent, MI | Pass | State |
| 2025-04-11 | AMRIZE CEMENT INC. — high-priority violation on file | ALPENA, Alpena, MI | Pass | State |
| 2025-04-11 | BASF CORPORATION - CHEMICAL PLANTS — high-priority violation on file | WYANDOTTE, Wayne, MI | Pass | State |
| 2025-04-11 | LACKS ENTERPRISES INC. | GRAND RAPIDS, Kent, MI | Fail | State |
| 2025-04-10 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-04-10 | RIVERSIDE ENERGY MICHIGAN LLC - WILDERNESS CO2, HAYES 29 CPF | GAYLORD, Otsego, MI | Pass | State |
| 2025-04-10 | BLUE WATER RENEWABLES — high-priority violation on file | KIMBALL, St. Clair, MI | Pass | State |
| 2025-04-09 | BILLERUD ESCANABA LLC | ESCANABA, Delta, MI | Pass | State |
| 2025-04-09 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-04-09 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-04-09 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | MONROE, Monroe, MI | Pass | State |
| 2025-04-08 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-04-08 | HUTCHINSON ANTIVIBRATION SYSTEMS, INC. — high-priority violation on file | GRAND RAPIDS, Kent, MI | Pass | State |
| 2025-04-03 | PACKAGING CORPORATION OF AMERICA - FILER CITY MILL | FILER CITY, Manistee, MI | Pass | State |
| 2025-04-03 | DTE ELECTRIC COMPANY - GREENWOOD ENERGY CENTER | KENOCKEE, St. Clair, MI | Pass | State |
| 2025-04-02 | LANSING BOARD OF WATER & LIGHT - ERICKSON STATION | LANSING, Eaton, MI | Pass | State |
| 2025-04-01 | OTSEGO PAPER INC. | OTSEGO, Allegan, MI | Pass | State |
| 2025-04-01 | PACKAGING CORPORATION OF AMERICA - FILER CITY MILL | FILER CITY, Manistee, MI | Pass | State |
| 2025-03-31 | KAWASAKI MOTORS CORP USA | GRAND RAPIDS, Kent, MI | Pass | State |
| 2025-03-26 | THE DOW CHEMICAL COMPANY U.S.A., MIDLAND — high-priority violation on file | MIDLAND, Midland, MI | Pass | State |
| 2025-03-25 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2025-03-25 | DTE ELECTRIC COMPANY - DELRAY POWER PLANT | DETROIT, Wayne, MI | Pass | State |
| 2025-03-25 | HURON CASTING, INC (BLUE DIAMOND STEEL CASTING) | PIGEON, Huron, MI | Pass | State |
| 2025-03-25 | BREMBO NORTH AMERICA, INC. — high-priority violation on file | HOMER, Calhoun, MI | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.