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 |
|---|---|---|---|---|
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-07-07 | MIAMI FORT POWER COMPANY LLC | NORTH BEND, Hamilton, OH | Pass | State |
| 2023-07-07 | MIAMI FORT POWER COMPANY LLC | NORTH BEND, Hamilton, OH | Pass | State |
| 2023-07-06 | BLUE RACER MIDSTREAM LLC - BFS#2 (FLUSHING A) | FLUSHING, Belmont, OH | Pass | State |
| 2023-07-06 | BLUE RACER MIDSTREAM LLC - BFS#2 (FLUSHING A) | FLUSHING, Belmont, OH | Pass | State |
| 2023-07-06 | BLUE RACER MIDSTREAM LLC - BFS#2 (FLUSHING A) | FLUSHING, Belmont, OH | Pass | State |
| 2023-07-06 | BLUE RACER MIDSTREAM LLC - GUERNSEY CO FIELD STATION #1 | FAIRVIEW, Guernsey, OH | Pass | State |
| 2023-07-06 | BLUE RACER MIDSTREAM LLC - GUERNSEY CO FIELD STATION #1 | FAIRVIEW, Guernsey, OH | Pass | State |
| 2023-07-06 | BLUE RACER MIDSTREAM LLC - GUERNSEY CO FIELD STATION #1 | FAIRVIEW, Guernsey, OH | Pass | State |
| 2023-07-03 | MIAMI FORT POWER COMPANY LLC | NORTH BEND, Hamilton, OH | Pass | State |
| 2023-06-30 | EOG RESOURCES, INC. - WENDELL CR MON PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-06-30 | EOG RESOURCES, INC. - WENDELL CR MON PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-06-30 | EOG RESOURCES, INC. - WENDELL CR MON PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-06-29 | EOG RESOURCES, INC. - WILLIAMS CR MON PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-06-29 | EOG RESOURCES, INC. - WILLIAMS CR MON PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-06-29 | EOG RESOURCES, INC. - WILLIAMS CR MON PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-06-29 | GLEN-GERY CORP. IBERIA PLANT | IBERIA, Marion, OH | Pass | State |
| 2023-06-29 | MAR-ZANE PLANT NO 10 | MARENGO, Morrow, OH | Pass | State |
| 2023-06-28 | LES RENEWABLE NG LLC - GROVE CITY | GROVE CITY, Franklin, OH | Pass | State |
| 2023-06-28 | EOG RESOURCES, INC. - JD CR AUG PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-06-28 | EOG RESOURCES, INC. - JD CR AUG PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-06-28 | EOG RESOURCES, INC. - JD CR AUG PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-06-28 | EOG RESOURCES, INC. - MOUNTZ CL HAN PAD | HANOVERTON, Columbiana, OH | Pass | State |
| 2023-06-28 | EOG RESOURCES, INC. - MOUNTZ CL HAN PAD | HANOVERTON, Columbiana, OH | Pass | State |
| 2023-06-28 | EOG RESOURCES, INC. - MOUNTZ CL HAN PAD | HANOVERTON, Columbiana, OH | Pass | State |
| 2023-06-28 | GLEN-GERY CORP. IBERIA PLANT | IBERIA, Marion, OH | Pass | State |
| 2023-06-28 | ENERGY TRANSFER MARKETING & TERMINALS LP | AKRON, Summit, OH | Pass | State |
| 2023-06-27 | ENBRIDGE GAS OHIO - NEW LYME COMPRESSOR STATION | JEFFERSON, Ashtabula, OH | Pass | State |
| 2023-06-27 | ENBRIDGE GAS OHIO - NEW LYME COMPRESSOR STATION | JEFFERSON, Ashtabula, OH | Pass | State |
| 2023-06-27 | ENBRIDGE GAS OHIO - NEW LYME COMPRESSOR STATION | JEFFERSON, Ashtabula, OH | Pass | State |
| 2023-06-27 | NEOGRAF SOLUTIONS, LLC (FORMER ADVANCED ENERGY TECH.) | LAKEWOOD, Cuyahoga, OH | Pass | State |
| 2023-06-26 | PPG INDUSTRIES - ERU | CIRCLEVILLE, Pickaway, OH | Pass | State |
| 2023-06-26 | EOG RESOURCES, INC. - STUART HENDERSON 11-12-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-06-26 | EOG RESOURCES, INC. - STUART HENDERSON 11-12-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-06-26 | EOG RESOURCES, INC. - STUART HENDERSON 11-12-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-06-26 | EOG RESOURCES, INC. - DAVID WEAVER HN STO PAD | SCIO, Harrison, OH | Pass | State |
| 2023-06-26 | EOG RESOURCES, INC. - DAVID WEAVER HN STO PAD | SCIO, Harrison, OH | Pass | State |
| 2023-06-26 | EOG RESOURCES, INC. - DAVID WEAVER HN STO PAD | SCIO, Harrison, OH | Pass | State |
| 2023-06-26 | RICE DRILLING D LLC - EISENBARTH PAD | CLARINGTON, Monroe, OH | Pass | State |
| 2023-06-26 | RICE DRILLING D LLC - EISENBARTH PAD | CLARINGTON, Monroe, OH | Pass | State |
| 2023-06-26 | RICE DRILLING D LLC - EISENBARTH PAD | CLARINGTON, Monroe, OH | Pass | State |
| 2023-06-26 | DUANE WEISEND PAD 952440 | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-06-26 | DUANE WEISEND PAD 952440 | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-06-26 | DUANE WEISEND PAD 952440 | SUMMERFIELD, Noble, OH | Pass | State |
| 2023-06-23 | HILCORP ENERGY - POLAND-CLL PRODUCTION FACILITY | POLAND, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2023-06-23 | HILCORP ENERGY - POLAND-CLL PRODUCTION FACILITY | POLAND, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2023-06-23 | HILCORP ENERGY - POLAND-CLL PRODUCTION FACILITY | POLAND, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2023-06-23 | MARLITE | DOVER, Tuscarawas, OH | Pass | State |
| 2023-06-23 | MARLITE | DOVER, Tuscarawas, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-23 | DUKE ENERGY INDIANA, MADISON GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2023-06-22 | HILCORP ENERGY - ELK RUN AUER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-22 | HILCORP ENERGY - ELK RUN AUER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-22 | HILCORP ENERGY - ELK RUN AUER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-22 | HILCORP ENERGY - ELK RUN BAKER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-22 | HILCORP ENERGY - ELK RUN BAKER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-22 | HILCORP ENERGY - ELK RUN BAKER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-22 | ULTIUM CELLS LLC | WARREN, Trumbull, OH | Fail | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-22 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-21 | HILCORP ENERGY - ELK RUN WERTZ PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-21 | HILCORP ENERGY - ELK RUN WERTZ PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-21 | HILCORP ENERGY - ELK RUN WERTZ PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2023-06-21 | HILCORP ENERGY - ELK RUN JOHNSTON PRODUCTION FACILITY | ROGERS, Columbiana, OH | Pass | State |
| 2023-06-21 | HILCORP ENERGY - ELK RUN JOHNSTON PRODUCTION FACILITY | ROGERS, Columbiana, OH | Pass | State |
| 2023-06-21 | HILCORP ENERGY - ELK RUN JOHNSTON PRODUCTION FACILITY | ROGERS, Columbiana, OH | Pass | State |
| 2023-06-21 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-21 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2023-06-21 | OREGON CLEAN ENERGY CENTER | OREGON, Lucas, OH | Pass | State |
| 2023-06-21 | OREGON CLEAN ENERGY CENTER | OREGON, Lucas, OH | Pass | State |
| 2023-06-21 | OREGON CLEAN ENERGY CENTER | OREGON, Lucas, OH | Pass | State |
| 2023-06-21 | OREGON CLEAN ENERGY CENTER | OREGON, Lucas, OH | Pass | State |
| 2023-06-21 | OREGON CLEAN ENERGY CENTER | OREGON, Lucas, OH | Pass | State |
| 2023-06-21 | ALLIED CORPORATION PLANT 76 | CLEVELAND, Cuyahoga, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.