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 |
|---|---|---|---|---|
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | MARKWEST HUMPHREYS COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-03-28 | EOG RESOURCES, INC. - JAMAR 15-13-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-03-28 | EOG RESOURCES, INC. - JAMAR 15-13-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-03-28 | EOG RESOURCES, INC. - JAMAR 15-13-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-03-28 | EOG RESOURCES, INC. - WILLIAMSON 12-10-3 PAD | RICHMOND, Jefferson, OH | Pass | State |
| 2023-03-28 | EOG RESOURCES, INC. - WILLIAMSON 12-10-3 PAD | RICHMOND, Jefferson, OH | Pass | State |
| 2023-03-28 | EOG RESOURCES, INC. - WILLIAMSON 12-10-3 PAD | RICHMOND, Jefferson, OH | Pass | State |
| 2023-03-28 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-27 | EOG RESOURCES, INC. - GRIFFETH 7-15-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-03-27 | EOG RESOURCES, INC. - GRIFFETH 7-15-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-03-27 | EOG RESOURCES, INC. - GRIFFETH 7-15-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-03-27 | EOG RESOURCES, INC. - EDIE 17-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-03-27 | EOG RESOURCES, INC. - EDIE 17-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-03-27 | EOG RESOURCES, INC. - EDIE 17-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-27 | MARKWEST LAKE COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-24 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-03-24 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-03-24 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-03-24 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-03-24 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-03-24 | HOWMET AEROSPACE INC. | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-03-24 | TEXAS EASTERN TRANSMISSION - LEBANON | LEBANON, Warren, OH | Pass | State |
| 2023-03-24 | TEXAS EASTERN TRANSMISSION - LEBANON | LEBANON, Warren, OH | Pass | State |
| 2023-03-24 | TEXAS EASTERN TRANSMISSION - LEBANON | LEBANON, Warren, OH | Pass | State |
| 2023-03-24 | TEXAS EASTERN TRANSMISSION - LEBANON | LEBANON, Warren, OH | Pass | State |
| 2023-03-23 | CABINETWORKS GROUP MIDDLEFIELD LLC (PLANT #3). | ORWELL, Ashtabula, OH | Pass | State |
| 2023-03-23 | CABINETWORKS GROUP MIDDLEFIELD LLC (PLANT #3). | ORWELL, Ashtabula, OH | Pass | State |
| 2023-03-23 | CABINETWORKS GROUP MIDDLEFIELD LLC (PLANT #3). | ORWELL, Ashtabula, OH | Pass | State |
| 2023-03-23 | CABINETWORKS GROUP MIDDLEFIELD LLC (PLANT #3). | ORWELL, Ashtabula, OH | Pass | State |
| 2023-03-23 | TEXAS EASTERN TRANSMISSIONS L.P. - SOMERSET | SOMERSET, Perry, OH | Pass | State |
| 2023-03-23 | TEXAS EASTERN TRANSMISSIONS L.P. - SOMERSET | SOMERSET, Perry, OH | Pass | State |
| 2023-03-23 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-23 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-23 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-23 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-22 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | ADENA, Jefferson, OH | Pass | State |
| 2023-03-22 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | ADENA, Jefferson, OH | Pass | State |
| 2023-03-22 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | ADENA, Jefferson, OH | Pass | State |
| 2023-03-22 | ASCENT RESOURCES - UTICA LLC - CERMAK SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2023-03-22 | ASCENT RESOURCES - UTICA LLC - CERMAK SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2023-03-22 | ASCENT RESOURCES - UTICA LLC - CERMAK SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2023-03-21 | XTO ENERGY INC - VIOLET UNIT PAD | NEFFS, Belmont, OH | Pass | State |
| 2023-03-21 | XTO ENERGY INC - VIOLET UNIT PAD | NEFFS, Belmont, OH | Pass | State |
| 2023-03-21 | XTO ENERGY INC - VIOLET UNIT PAD | NEFFS, Belmont, OH | Pass | State |
| 2023-03-21 | ASCENT RESOURCES - UTICA, LLC - ALBRIGHT | SHADYSIDE, Belmont, OH | Pass | State |
| 2023-03-21 | ASCENT RESOURCES - UTICA, LLC - ALBRIGHT | SHADYSIDE, Belmont, OH | Pass | State |
| 2023-03-21 | ASCENT RESOURCES - UTICA, LLC - ALBRIGHT | SHADYSIDE, Belmont, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | MARKWEST HARRISON WEST COMPRESSOR STATION | FREEPORT, Harrison, OH | Pass | State |
| 2023-03-21 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-21 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-21 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-21 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-03-20 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-03-20 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-03-20 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-03-19 | TEXAS EASTERN TRANSMISSIONS L.P. - SOMERSET | SOMERSET, Perry, OH | Pass | State |
| 2023-03-17 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-03-17 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-03-17 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-03-17 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-03-17 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-03-17 | MARKWEST BARNESVILLE WEST COMPRESSOR STATION | WARREN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-03-16 | EOG RESOURCES, INC. - LEEPER 10-14-7 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-03-16 | EOG RESOURCES, INC. - LEEPER 10-14-7 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-03-16 | EOG RESOURCES, INC. - LEEPER 10-14-7 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-03-16 | ROVER PIPELINE - MAINLINE CS1 | SHERRODSVILLE, Carroll, OH | Pass | State |
| 2023-03-16 | ROVER PIPELINE - MAINLINE CS1 | SHERRODSVILLE, Carroll, OH | Pass | State |
| 2023-03-16 | ROVER PIPELINE - MAINLINE CS1 | SHERRODSVILLE, Carroll, OH | Pass | State |
| 2023-03-16 | ROVER PIPELINE - MAINLINE CS1 | SHERRODSVILLE, Carroll, OH | Pass | State |
| 2023-03-16 | ROVER PIPELINE - MAINLINE CS1 | SHERRODSVILLE, Carroll, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.