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 |
|---|---|---|---|---|
| 2021-03-17 | OWENS CORNING | MOUNT VERNON, Knox, OH | Pass | State |
| 2021-03-17 | OWENS CORNING | MOUNT VERNON, Knox, OH | Pass | State |
| 2021-03-17 | OWENS CORNING | MOUNT VERNON, Knox, OH | Pass | State |
| 2021-03-17 | LIMA REFINING COMPANY — high-priority violation on file | LIMA, Allen, OH | Pass | State |
| 2021-03-17 | COLUMBIA PIPELINE GROUP-OAK HILL COMPRESSOR STATION | MADISON, TOWNSHIP OF, Jackson, OH | Pass | State |
| 2021-03-17 | COLUMBIA PIPELINE GROUP-OAK HILL COMPRESSOR STATION | MADISON, TOWNSHIP OF, Jackson, OH | Pass | State |
| 2021-03-17 | COLUMBIA PIPELINE GROUP-OAK HILL COMPRESSOR STATION | MADISON, TOWNSHIP OF, Jackson, OH | Pass | State |
| 2021-03-17 | ELCO CORP. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-03-17 | ELCO CORP. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-03-16 | ROCKIES EXPRESS PIPELINE - COLUMBUS COMPRESSOR STATION — high-priority violation on file | ASHVILLE, Pickaway, OH | Pass | State |
| 2021-03-16 | ROCKIES EXPRESS PIPELINE - COLUMBUS COMPRESSOR STATION — high-priority violation on file | ASHVILLE, Pickaway, OH | Pass | State |
| 2021-03-16 | ROCKIES EXPRESS PIPELINE - COLUMBUS COMPRESSOR STATION — high-priority violation on file | ASHVILLE, Pickaway, OH | Pass | State |
| 2021-03-16 | ROCKIES EXPRESS PIPELINE - COLUMBUS COMPRESSOR STATION — high-priority violation on file | ASHVILLE, Pickaway, OH | Pass | State |
| 2021-03-16 | EQM OLYMPUS MIDSTREAM, LLC - RIFLE COMPRESSOR STATION | WOODSFIELD, Monroe, OH | Pass | State |
| 2021-03-16 | EQM OLYMPUS MIDSTREAM, LLC - RIFLE COMPRESSOR STATION | WOODSFIELD, Monroe, OH | Pass | State |
| 2021-03-16 | ENBRIDGE GAS OHIO - PIKE COMPRESSOR STATION | CANTON, Stark, OH | Pass | State |
| 2021-03-16 | ENBRIDGE GAS OHIO - PIKE COMPRESSOR STATION | CANTON, Stark, OH | Pass | State |
| 2021-03-16 | ENBRIDGE GAS OHIO - PIKE COMPRESSOR STATION | CANTON, Stark, OH | Pass | State |
| 2021-03-16 | ENBRIDGE GAS OHIO - PIKE COMPRESSOR STATION | CANTON, Stark, OH | Pass | State |
| 2021-03-16 | ENBRIDGE GAS OHIO - PIKE COMPRESSOR STATION | CANTON, Stark, OH | Pass | State |
| 2021-03-16 | ENBRIDGE GAS OHIO - PIKE COMPRESSOR STATION | CANTON, Stark, OH | Pass | State |
| 2021-03-15 | ROCKIES EXPRESS PIPELINE LLC- CHANDLERSVILLE CS | PHILO, Muskingum, OH | Pass | State |
| 2021-03-15 | ROCKIES EXPRESS PIPELINE LLC- CHANDLERSVILLE CS | PHILO, Muskingum, OH | Pass | State |
| 2021-03-15 | ROCKIES EXPRESS PIPELINE LLC- CHANDLERSVILLE CS | PHILO, Muskingum, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-12 | MARKWEST - SENECA GAS PLANT | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-12 | MARKWEST - SENECA GAS PLANT | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-12 | MARKWEST - SENECA GAS PLANT | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-12 | MARKWEST - SENECA GAS PLANT | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-12 | MARKWEST - SENECA GAS PLANT | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-12 | MARKWEST - SENECA GAS PLANT | SUMMERFIELD, Noble, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Fail | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2021-03-11 | ASCENT RESOURCES - UTICA LLC - BAKOS CLR BI | COLERAIN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-11 | ASCENT RESOURCES - UTICA LLC - BAKOS CLR BI | COLERAIN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-03-11 | ASCENT RESOURCES - UTICA LLC - BAKOS CLR BI | COLERAIN, TOWNSHIP OF, Belmont, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.