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 |
|---|---|---|---|---|
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | EQUITRANS MIDSTREAM COBRA COMPRESSOR STATION | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-26 | ENERGY TRANSFER -ROVER PIPELINE - CADIZ COMPRESSOR STN | CADIZ, Harrison, OH | Pass | State |
| 2021-05-25 | EASTERN GAS TRANSMISSION AND STORAGE, INC. | WASHINGTON COURT HOUSE, Fayette, OH | Pass | State |
| 2021-05-25 | EASTERN GAS TRANSMISSION AND STORAGE, INC. | WASHINGTON COURT HOUSE, Fayette, OH | Pass | State |
| 2021-05-25 | DTE MARIETTA | MARIETTA, Washington, OH | Pass | State |
| 2021-05-25 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2021-05-23 | ROLLING HILLS GENERATING, LLC | WILKESVILLE, Vinton, OH | Pass | State |
| 2021-05-23 | ROLLING HILLS GENERATING, LLC | WILKESVILLE, Vinton, OH | Pass | State |
| 2021-05-23 | ROLLING HILLS GENERATING, LLC | WILKESVILLE, Vinton, OH | Pass | State |
| 2021-05-23 | ROLLING HILLS GENERATING, LLC | WILKESVILLE, Vinton, OH | Pass | State |
| 2021-05-23 | ROLLING HILLS GENERATING, LLC | WILKESVILLE, Vinton, OH | Pass | State |
| 2021-05-20 | ORMET 9 PAD 952729 | HANNIBAL, Monroe, OH | Pass | State |
| 2021-05-20 | ORMET 9 PAD 952729 | HANNIBAL, Monroe, OH | Pass | State |
| 2021-05-20 | ORMET 9 PAD 952729 | HANNIBAL, Monroe, OH | Pass | State |
| 2021-05-20 | ORMET 15 PAD 952728 | CLARINGTON, Monroe, OH | Pass | State |
| 2021-05-20 | ORMET 15 PAD 952728 | CLARINGTON, Monroe, OH | Pass | State |
| 2021-05-20 | ORMET 15 PAD 952728 | CLARINGTON, Monroe, OH | Pass | State |
| 2021-05-20 | NEATON AUTO PRODUCTS MANUFACTURING, INC. | EATON, Preble, OH | Pass | State |
| 2021-05-20 | NEATON AUTO PRODUCTS MANUFACTURING, INC. | EATON, Preble, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-20 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-19 | QNITY | CIRCLEVILLE, Pickaway, OH | Pass | State |
| 2021-05-19 | HILCORP ENERGY - SALEM-GRUBBS PRODUCTION FACILITY | LEETONIA, Columbiana, OH | Pass | State |
| 2021-05-19 | HILCORP ENERGY - SALEM-GRUBBS PRODUCTION FACILITY | LEETONIA, Columbiana, OH | Pass | State |
| 2021-05-19 | HILCORP ENERGY - POLAND-CLL PRODUCTION FACILITY | POLAND, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-05-19 | HILCORP ENERGY - POLAND-CLL PRODUCTION FACILITY | POLAND, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-05-19 | HILCORP ENERGY - POLAND-CLL PRODUCTION FACILITY | POLAND, TOWNSHIP OF, Mahoning, OH | Pass | State |
| 2021-05-19 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2021-05-19 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2021-05-19 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-18 | QNITY | CIRCLEVILLE, Pickaway, OH | Pass | State |
| 2021-05-18 | SOFIDEL AMERICA — high-priority violation on file | CIRCLEVILLE, Pickaway, OH | Pass | State |
| 2021-05-18 | SOFIDEL AMERICA — high-priority violation on file | CIRCLEVILLE, Pickaway, OH | Pass | State |
| 2021-05-18 | EASTERN GAS TRANSMISSION & STORAGE,INC.-CARROLL STATION | CARROLLTON, Carroll, OH | Pass | State |
| 2021-05-18 | EASTERN GAS TRANSMISSION & STORAGE,INC.-CARROLL STATION | CARROLLTON, Carroll, OH | Pass | State |
| 2021-05-18 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2021-05-17 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2021-05-16 | HILCORP ENERGY - ELK RUN-SCHEEL PRODUCTION FACILITY | COLUMBIANA, Columbiana, OH | Pass | State |
| 2021-05-16 | HILCORP ENERGY - ELK RUN-SCHEEL PRODUCTION FACILITY | COLUMBIANA, Columbiana, OH | Pass | State |
| 2021-05-16 | HILCORP ENERGY - ELK RUN-SCHEEL PRODUCTION FACILITY | COLUMBIANA, Columbiana, OH | Pass | State |
| 2021-05-15 | ELLWOOD ENGINEERED CASTINGS | HUBBARD, Trumbull, OH | Pass | State |
| 2021-05-15 | ELLWOOD ENGINEERED CASTINGS | HUBBARD, Trumbull, OH | Pass | State |
| 2021-05-15 | ELLWOOD ENGINEERED CASTINGS | HUBBARD, Trumbull, OH | Pass | State |
| 2021-05-14 | CLEVELAND-CLIFFS WARREN | WARREN, Trumbull, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | TOLEDO REFINING COMPANY LLC | OREGON, Lucas, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-05-14 | OHIO RIVER SYSTEM LLC - REX BOOSTER STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.