EPA Air · stack tests by state and year
Air-emissions stack tests in Ohio, 2023
- 2,800Stack 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 2023; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Ohio, 2023
- Harrison County 297
- Belmont County 276
- Monroe County 271
- Carroll County 208
- Lucas County 187
- Jefferson County 138
- Cuyahoga County 126
- Guernsey County 93
- Wayne County 68
- Hamilton County 66
- Noble County 57
- Montgomery County 56
- Franklin County 51
- Fulton County 50
- Washington County 49
- Undetermined County 48
- Trumbull County 46
- Columbiana County 46
- Licking County 43
- Mahoning County 41
- Stark County 38
- Marion County 34
- Ashtabula County 31
- Pickaway County 29
- Tuscarawas County 28
- Greene County 27
- Fayette County 27
- Perry County 26
- Warren County 24
- Wood County 21
- Portage County 20
- Crawford County 17
- Butler County 17
- Summit County 16
- Allen County 16
- Muskingum County 14
- Medina County 14
- Sandusky County 14
- Lorain County 13
- Lake County 11
- Huron County 11
- Union County 10
- Ottawa County 10
- Delaware County 9
- Wyandot County 9
- Brown County 9
- Darke County 9
- Holmes County 8
- Seneca County 6
- Putnam County 6
- Defiance County 5
- Erie County 5
- Logan County 5
- Auglaize County 4
- Lawrence County 4
- Fairfield County 4
- Paulding County 4
- Richland County 3
- Gallia County 3
- Scioto County 3
Ohio, other years
Air-emissions stack tests recorded in Ohio, 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-01-19 | CROWN BATTERY MANUFACTURING CO | FREMONT, Sandusky, OH | Pass | State |
| 2023-01-19 | ASCENT RESOURCES - UTICA LLC - MOHOROVICH RCH GR | SENECAVILLE, Guernsey, OH | Pass | State |
| 2023-01-19 | ASCENT RESOURCES - UTICA LLC - MOHOROVICH RCH GR | SENECAVILLE, Guernsey, OH | Pass | State |
| 2023-01-19 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2023-01-19 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2023-01-19 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2023-01-18 | NOVELIS ALR ROLLED PRODUCTS, INC. | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-18 | NOVELIS ALR ROLLED PRODUCTS, INC. | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-18 | NOVELIS ALR ROLLED PRODUCTS, INC. | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-18 | NOVELIS ALR ROLLED PRODUCTS, INC. | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-18 | HONDA DEV. & MFG. OF AMERICA, LLC, EAST LIBERTY PLANT | EAST LIBERTY, Logan, OH | Pass | State |
| 2023-01-18 | ASCENT RESOURCES - UTICA LLC - LAVADA RCH GR | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-01-18 | ASCENT RESOURCES - UTICA LLC - LAVADA RCH GR | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-01-18 | MARKWEST - CADIZ GAS PLANT | CADIZ, Harrison, OH | Pass | State |
| 2023-01-18 | MARKWEST - CADIZ GAS PLANT | CADIZ, Harrison, OH | Pass | State |
| 2023-01-18 | MARKWEST - CADIZ GAS PLANT | CADIZ, Harrison, OH | Pass | State |
| 2023-01-18 | MARKWEST - CADIZ GAS PLANT | CADIZ, Harrison, OH | Pass | State |
| 2023-01-18 | MARKWEST - CADIZ GAS PLANT | CADIZ, Harrison, OH | Pass | State |
| 2023-01-18 | MARKWEST - CADIZ GAS PLANT | CADIZ, Harrison, OH | Pass | State |
| 2023-01-18 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-01-18 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-01-17 | NOVELIS ALR ROLLED PRODUCTS, INC. | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-17 | NOVELIS ALR ROLLED PRODUCTS, INC. | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-17 | NOVELIS ALR ROLLED PRODUCTS, INC. | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-17 | TRAILWAY WOOD II | DUNDEE, Tuscarawas, OH | Pass | State |
| 2023-01-17 | TRAILWAY WOOD II | DUNDEE, Tuscarawas, OH | Pass | State |
| 2023-01-17 | TRAILWAY WOOD II | DUNDEE, Tuscarawas, OH | Pass | State |
| 2023-01-17 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-01-17 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-01-17 | CLEVELAND-CLIFFS STEEL CORPORATION — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2023-01-16 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-01-16 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-01-13 | NORTHSTAR BLUESCOPE STEEL, LLC | DELTA, Fulton, OH | Pass | State |
| 2023-01-13 | NORTHSTAR BLUESCOPE STEEL, LLC | DELTA, Fulton, OH | Pass | State |
| 2023-01-13 | NORTHSTAR BLUESCOPE STEEL, LLC | DELTA, Fulton, OH | Pass | State |
| 2023-01-13 | ROCKIES EXPRESS PIPELINE LLC- CHANDLERSVILLE CS | PHILO, Muskingum, OH | Pass | State |
| 2023-01-13 | ROCKIES EXPRESS PIPELINE LLC- CHANDLERSVILLE CS | PHILO, Muskingum, OH | Pass | State |
| 2023-01-13 | ROCKIES EXPRESS PIPELINE LLC- CHANDLERSVILLE CS | PHILO, Muskingum, OH | Pass | State |
| 2023-01-12 | ROCKIES EXPRESS PIPELINE - WASHINGTON CH COMPRESSOR STA | WASHINGTON COURT HOUSE, Fayette, OH | Pass | State |
| 2023-01-12 | ROCKIES EXPRESS PIPELINE - WASHINGTON CH COMPRESSOR STA | WASHINGTON COURT HOUSE, Fayette, OH | Pass | State |
| 2023-01-12 | ROCKIES EXPRESS PIPELINE - WASHINGTON CH COMPRESSOR STA | WASHINGTON COURT HOUSE, Fayette, OH | Pass | State |
| 2023-01-12 | ROCKIES EXPRESS PIPELINE - WASHINGTON CH COMPRESSOR STA | WASHINGTON COURT HOUSE, Fayette, OH | Pass | State |
| 2023-01-12 | ROCKIES EXPRESS PIPELINE - COLUMBUS COMPRESSOR STATION — high-priority violation on file | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-12 | ROCKIES EXPRESS PIPELINE - COLUMBUS COMPRESSOR STATION — high-priority violation on file | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-12 | ROCKIES EXPRESS PIPELINE - COLUMBUS COMPRESSOR STATION — high-priority violation on file | ASHVILLE, Pickaway, OH | Pass | State |
| 2023-01-12 | EOG RESOURCES, INC. - DONALD 22-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-01-12 | EOG RESOURCES, INC. - DONALD 22-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-01-12 | EOG RESOURCES, INC. - DONALD 22-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-01-12 | EOG RESOURCES, INC. - BOWERSTON 21-13-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-01-12 | EOG RESOURCES, INC. - BOWERSTON 21-13-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-01-12 | EOG RESOURCES, INC. - BOWERSTON 21-13-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-11 | EQM OLYMPUS MIDSTREAM LLC - BIG KAHUNA CS | BELMONT, Belmont, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-10 | FEDERAL METAL CO | BEDFORD, Cuyahoga, OH | Pass | State |
| 2023-01-08 | GUERNSEY POWER STATION LLC | BYESVILLE, Guernsey, OH | Pass | State |
| 2023-01-08 | GUERNSEY POWER STATION LLC | BYESVILLE, Guernsey, OH | Pass | State |
| 2023-01-06 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-01-06 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-01-06 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-01-06 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-01-06 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-01-06 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-01-05 | EOG RESOURCES, INC. - BAUER 14-14-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-01-05 | EOG RESOURCES, INC. - BAUER 14-14-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-01-05 | EOG RESOURCES, INC. - BAUER 14-14-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.