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 |
|---|---|---|---|---|
| 2023-12-06 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-12-06 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-12-06 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-12-06 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-12-06 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-12-06 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-12-06 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-12-06 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | ADENA, Jefferson, OH | Pass | State |
| 2023-12-06 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | ADENA, Jefferson, OH | Pass | State |
| 2023-12-06 | ASCENT RESOURCES - UTICA LLC - CLUB SMF JF | ADENA, Jefferson, OH | Pass | State |
| 2023-12-06 | ASCENT RESOURCES - UTICA LLC - THOMPSON SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2023-12-06 | ASCENT RESOURCES - UTICA LLC - THOMPSON SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2023-12-06 | ASCENT RESOURCES - UTICA LLC - THOMPSON SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2023-12-06 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-12-06 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-12-06 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-12-06 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-12-05 | HOLMES COMPRESSOR STATION | WASHINGTON, TOWNSHIP OF, Holmes, OH | Pass | State |
| 2023-12-05 | HOLMES COMPRESSOR STATION | WASHINGTON, TOWNSHIP OF, Holmes, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - SMITH CLR BL | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - SMITH CLR BL | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - SMITH CLR BL | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-12-05 | EQM OLYMPUS MIDSTREAM, LLC - CATAPULT CS | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-12-05 | EQM OLYMPUS MIDSTREAM, LLC - CATAPULT CS | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-12-05 | EQM OLYMPUS MIDSTREAM, LLC - CATAPULT CS | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-12-05 | DTE MARIETTA | MARIETTA, Washington, OH | Pass | State |
| 2023-12-05 | CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-12-05 | ALTERRA ENERGY, LLC | AKRON, Summit, OH | Pass | State |
| 2023-12-05 | ALTERRA ENERGY, LLC | AKRON, Summit, OH | Fail | State |
| 2023-12-05 | ALTERRA ENERGY, LLC | AKRON, Summit, OH | Pass | State |
| 2023-12-04 | EOG RESOURCES, INC. - SANOR FARMS 23-17-5 PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2023-12-04 | EOG RESOURCES, INC. - SANOR FARMS 23-17-5 PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2023-12-04 | EOG RESOURCES, INC. - SANOR FARMS 23-17-5 PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2023-12-01 | CARGILL, INCORPORATED - SALT DIVISION | AKRON, Summit, OH | Pass | State |
| 2023-12-01 | CARGILL, INCORPORATED - SALT DIVISION | AKRON, Summit, OH | Pass | State |
| 2023-11-30 | CARROLLTON COMPRESSOR FACILITY | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-30 | CARROLLTON COMPRESSOR FACILITY | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-30 | CARROLLTON COMPRESSOR FACILITY | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-30 | CARROLLTON COMPRESSOR FACILITY | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-30 | CARROLLTON COMPRESSOR FACILITY | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-30 | CARROLLTON COMPRESSOR FACILITY | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-30 | ASCENT RESOURCES - UTICA, LLC - WAYNE A (NAC B WYN JF) | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2023-11-30 | ASCENT RESOURCES - UTICA, LLC - WAYNE A (NAC B WYN JF) | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2023-11-30 | ASCENT RESOURCES - UTICA, LLC - WAYNE A (NAC B WYN JF) | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2023-11-29 | GULFPORT APPALACHIA, LLC - HENDERSHOT PAD | POWHATAN POINT, Belmont, OH | Pass | State |
| 2023-11-29 | GULFPORT APPALACHIA, LLC - HENDERSHOT PAD | POWHATAN POINT, Belmont, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-28 | EOG RESOURCES, INC. - BAUER 14-14-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-28 | EOG RESOURCES, INC. - BAUER 14-14-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-28 | EOG RESOURCES, INC. - BAUER 14-14-6 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-28 | CROWN BATTERY MANUFACTURING CO | FREMONT, Sandusky, OH | Pass | State |
| 2023-11-28 | EOG RESOURCES, INC. - KRAMER 1-13-7 PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-11-28 | EOG RESOURCES, INC. - KRAMER 1-13-7 PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-11-28 | EOG RESOURCES, INC. - KRAMER 1-13-7 PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-11-28 | CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-11-28 | CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-11-27 | EOG RESOURCES, INC. - WILLIAMS CR MON PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-27 | EOG RESOURCES, INC. - WILLIAMS CR MON PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-27 | EOG RESOURCES, INC. - WILLIAMS CR MON PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-11-27 | EOG RESOURCES, INC. - LLOYD SMITH 1-15-7 PAD | SHERRODSVILLE, Carroll, OH | Pass | State |
| 2023-11-27 | EOG RESOURCES, INC. - LLOYD SMITH 1-15-7 PAD | SHERRODSVILLE, Carroll, OH | Pass | State |
| 2023-11-27 | EOG RESOURCES, INC. - LLOYD SMITH 1-15-7 PAD | SHERRODSVILLE, Carroll, OH | Pass | State |
| 2023-11-22 | GULFPORT APPALACHIA, LLC - SHIMBLE PAD | BELLAIRE, Belmont, OH | Pass | State |
| 2023-11-22 | GULFPORT APPALACHIA, LLC - SHIMBLE PAD | BELLAIRE, Belmont, OH | Pass | State |
| 2023-11-22 | GULFPORT APPALACHIA, LLC - SHIMBLE PAD | BELLAIRE, Belmont, OH | Pass | State |
| 2023-11-22 | ASCENT RESOURCES - UTICA LLC - SIDWELL WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-11-22 | ASCENT RESOURCES - UTICA LLC - SIDWELL WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-11-22 | ASCENT RESOURCES - UTICA LLC - SIDWELL WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-11-22 | GULFPORT APPALACHIA, LLC - MILLER WELL PAD | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2023-11-22 | GULFPORT APPALACHIA, LLC - MILLER WELL PAD | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2023-11-22 | GULFPORT APPALACHIA, LLC - MILLER WELL PAD | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.