EPA Air · stack tests by state and year
Air-emissions stack tests in Ohio, 2021
- 2,582Stack 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 Ohio during 2021; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Ohio, 2021
- Monroe County 258
- Belmont County 208
- Franklin County 204
- Harrison County 157
- Lucas County 147
- Montgomery County 112
- Licking County 110
- Cuyahoga County 93
- Jefferson County 92
- Carroll County 78
- Richland County 78
- Columbiana County 71
- Hamilton County 70
- Noble County 51
- Guernsey County 50
- Stark County 49
- Mahoning County 48
- Wayne County 45
- Undetermined County 43
- Huron County 35
- Butler County 32
- Defiance County 32
- Pickaway County 26
- Union County 25
- Darke County 25
- Warren County 25
- Wood County 24
- Madison County 23
- Perry County 23
- Allen County 21
- Ashtabula County 21
- Fayette County 20
- Lorain County 19
- Summit County 18
- Scioto County 17
- Crawford County 15
- Delaware County 14
- Trumbull County 13
- Medina County 12
- Knox County 12
- Greene County 11
- Seneca County 10
- Brown County 10
- Putnam County 9
- Lake County 9
- Williams County 9
- Tuscarawas County 9
- Muskingum County 8
- Clermont County 8
- Fairfield County 7
- Washington County 7
- Jackson County 5
- Erie County 5
- Lawrence County 5
- Athens County 5
- Vinton County 5
- Gallia County 5
- Shelby County 5
- Marion County 5
- Ross County 4
- Preble County 4
- Logan County 3
- Portage County 3
- Holmes County 3
Ohio, other years
Air-emissions stack tests recorded in Ohio, 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-03-11 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-11 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-11 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-11 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2021-03-11 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2021-03-11 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2021-03-11 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2021-03-11 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2021-03-11 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2021-03-11 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2021-03-11 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2021-03-11 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2021-03-10 | OWENS CORNING INSULATING SYSTEMS, LLC | NEWARK, Licking, OH | Pass | State |
| 2021-03-10 | ASCENT RESOURCES - UTICA LLC - PIERGALLINI SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2021-03-10 | ASCENT RESOURCES - UTICA LLC - PIERGALLINI SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2021-03-10 | ASCENT RESOURCES - UTICA LLC - PIERGALLINI SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2021-03-10 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2021-03-10 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2021-03-10 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2021-03-10 | HANGING ROCK POWER COMPANY, LLC | IRONTON, Lawrence, OH | Pass | State |
| 2021-03-10 | OHIO POWER PARTNERS, LLC | MIDDLETOWN, Butler, OH | Pass | State |
| 2021-03-10 | OHIO POWER PARTNERS, LLC | MIDDLETOWN, Butler, OH | Pass | State |
| 2021-03-10 | NEXUS GAS TRANSMISSION WADSWORTH COMPRESSOR STATION | SEVILLE, Medina, OH | Pass | State |
| 2021-03-10 | NEXUS GAS TRANSMISSION WADSWORTH COMPRESSOR STATION | SEVILLE, Medina, OH | Pass | State |
| 2021-03-10 | NEXUS GAS TRANSMISSION WADSWORTH COMPRESSOR STATION | SEVILLE, Medina, OH | Pass | State |
| 2021-03-10 | NEXUS GAS TRANSMISSION WADSWORTH COMPRESSOR STATION | SEVILLE, Medina, OH | Pass | State |
| 2021-03-09 | EAST OHIO GAS - COLUMBIANA COMPRESSOR STATION | KNOX, TOWNSHIP OF, Columbiana, OH | Pass | State |
| 2021-03-09 | EAST OHIO GAS - COLUMBIANA COMPRESSOR STATION | KNOX, TOWNSHIP OF, Columbiana, OH | Pass | State |
| 2021-03-09 | EAST OHIO GAS - COLUMBIANA COMPRESSOR STATION | KNOX, TOWNSHIP OF, Columbiana, OH | Pass | State |
| 2021-03-09 | EAST OHIO GAS - COLUMBIANA COMPRESSOR STATION | KNOX, TOWNSHIP OF, Columbiana, OH | Pass | State |
| 2021-03-09 | EAST OHIO GAS - COLUMBIANA COMPRESSOR STATION | KNOX, TOWNSHIP OF, Columbiana, OH | Pass | State |
| 2021-03-09 | EAST OHIO GAS - COLUMBIANA COMPRESSOR STATION | KNOX, TOWNSHIP OF, Columbiana, OH | Pass | State |
| 2021-03-09 | MOMENTIVE PERFORMANCE MATERIALS QUARTZ INC | WILLOUGHBY, Lake, OH | Pass | State |
| 2021-03-09 | MOMENTIVE PERFORMANCE MATERIALS QUARTZ INC | WILLOUGHBY, Lake, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | MAHONING LANDFILL, INC. | SPRINGFIELD, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-03-09 | ASCENT RESOURCES - UTICA LLC - TRUCHAN NW WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2021-03-09 | ASCENT RESOURCES - UTICA LLC - TRUCHAN NW WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2021-03-09 | ASCENT RESOURCES - UTICA LLC - TRUCHAN NW WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2021-03-09 | CARDINAL POWER PLANT (CARDINAL OPERATING COMPANY) | BRILLIANT, Jefferson, OH | Pass | State |
| 2021-03-09 | EQM OLYMPUS MIDSTREAM, LLC - SWITZ 27 CS | CLARINGTON, Monroe, OH | Pass | State |
| 2021-03-09 | EQM OLYMPUS MIDSTREAM, LLC - SWITZ 27 CS | CLARINGTON, Monroe, OH | Pass | State |
| 2021-03-09 | EQM OLYMPUS MIDSTREAM, LLC - SWITZ 27 CS | CLARINGTON, Monroe, OH | Pass | State |
| 2021-03-09 | OHIO POWER PARTNERS, LLC | MIDDLETOWN, Butler, OH | Pass | State |
| 2021-03-08 | NEXUS GAS TRANSMISSION, LLC - CLYDE COMPRESSOR STATION | CLYDE, Sandusky, OH | Pass | State |
| 2021-03-05 | TEXAS EASTERN TRANSMISSION LP - ATHENS COMPRESSOR STN. | ATHENS, Athens, OH | Pass | State |
| 2021-03-05 | TEXAS EASTERN TRANSMISSION LP - ATHENS COMPRESSOR STN. | ATHENS, Athens, OH | Pass | State |
| 2021-03-05 | TEXAS EASTERN TRANSMISSION LP - ATHENS COMPRESSOR STN. | ATHENS, Athens, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-05 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-04 | VALERO RENEWABLE FUELS COMPANY, LLC | BLOOMINGBURG, Fayette, OH | Pass | State |
| 2021-03-04 | VALERO RENEWABLE FUELS COMPANY, LLC | BLOOMINGBURG, Fayette, OH | Pass | State |
| 2021-03-04 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2021-03-04 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2021-03-04 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2021-03-03 | GENERAL JAMES M. GAVIN POWER PLANT | CHESHIRE, Gallia, OH | Pass | State |
| 2021-03-03 | GENERAL JAMES M. GAVIN POWER PLANT | CHESHIRE, Gallia, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | INR MIDSTREAM, LLC - REUSSER | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-03-03 | ZIMMER POWER COMPANY LLC | MOSCOW, Clermont, OH | Pass | State |
| 2021-03-03 | ZIMMER POWER COMPANY LLC | MOSCOW, Clermont, OH | Pass | State |
| 2021-03-02 | COLUMBIA PIPELINE GROUP-SUMMERFIELD | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-02 | COLUMBIA PIPELINE GROUP-SUMMERFIELD | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-02 | COLUMBIA PIPELINE GROUP-SUMMERFIELD | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-02 | THE MEDICAL CENTER COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-02-25 | PPG INDUSTRIES - DELAWARE | DELAWARE, Delaware, OH | Pass | State |
| 2021-02-25 | PPG INDUSTRIES - DELAWARE | DELAWARE, Delaware, OH | Pass | State |
| 2021-02-25 | PPG INDUSTRIES - DELAWARE | DELAWARE, Delaware, OH | Pass | State |
| 2021-02-25 | PPG INDUSTRIES - DELAWARE | DELAWARE, Delaware, OH | Pass | State |
| 2021-02-25 | PPG INDUSTRIES - DELAWARE | DELAWARE, Delaware, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.