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 |
|---|---|---|---|---|
| 2023-08-09 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-08-09 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-08-08 | HONDA DEV & MFG OF AMERICA, LLC, MARYSVILLE AUTO PLANT — high-priority violation on file | MARYSVILLE, Union, OH | Pass | State |
| 2023-08-08 | HONDA DEV & MFG OF AMERICA, LLC, MARYSVILLE AUTO PLANT — high-priority violation on file | MARYSVILLE, Union, OH | Pass | State |
| 2023-08-08 | HILCORP ENERGY - FAIRFIELD-NOLKER PRODUCTION FACILITY | LEETONIA, Columbiana, OH | Pass | State |
| 2023-08-08 | HILCORP ENERGY - FAIRFIELD-NOLKER PRODUCTION FACILITY | LEETONIA, Columbiana, OH | Pass | State |
| 2023-08-08 | HILCORP ENERGY - FAIRFIELD-NOLKER PRODUCTION FACILITY | LEETONIA, Columbiana, OH | Pass | State |
| 2023-08-08 | ASCENT RESOURCES - UTICA LLC - LEE CLR BL WELLPAD | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-08-08 | ASCENT RESOURCES - UTICA LLC - LEE CLR BL WELLPAD | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-08-08 | ASCENT RESOURCES - UTICA LLC - LEE CLR BL WELLPAD | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-08-08 | ASCENT RESOURCES - UTICA LLC - CROWIE RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-08-08 | ASCENT RESOURCES - UTICA LLC - CROWIE RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-08-08 | ASCENT RESOURCES - UTICA LLC - CROWIE RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-08-08 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-08-08 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-08-08 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-08-08 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-08-08 | KENMORE ASPHALT PRODUCTS, INC. - PLANT 1 | AKRON, Summit, OH | Pass | State |
| 2023-08-07 | ROLLAND PAD 952787 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-07 | ROLLAND PAD 952787 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-07 | ROLLAND PAD 952787 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-07 | YELLOW ROSE PAD 953034 | WOODSFIELD, Monroe, OH | Pass | State |
| 2023-08-07 | YELLOW ROSE PAD 953034 | WOODSFIELD, Monroe, OH | Pass | State |
| 2023-08-07 | YELLOW ROSE PAD 953034 | WOODSFIELD, Monroe, OH | Pass | State |
| 2023-08-05 | GERKEN MATERIALS INC PLANT #10 | CASTALIA, Erie, OH | Pass | State |
| 2023-08-04 | EOG RESOURCES, INC. - DONALD 22-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-08-04 | EOG RESOURCES, INC. - DONALD 22-13-6 PAD | LEESVILLE, Carroll, OH | Pass | State |
| 2023-08-04 | GERKEN MATERIALS INC PLANT #10 | CASTALIA, Erie, OH | Pass | State |
| 2023-08-04 | ATLAS ROOFING CORPORATION, FRANKLIN ROOFING FACILITY | FRANKLIN, Warren, OH | Pass | State |
| 2023-08-04 | ATLAS ROOFING CORPORATION, FRANKLIN ROOFING FACILITY | FRANKLIN, Warren, OH | Pass | State |
| 2023-08-03 | EOG RESOURCES, INC. - MITCHELL 34-13-5 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-08-03 | VALLEY ASPHALT CORP - PLANT #11 | XENIA, Greene, OH | Pass | State |
| 2023-08-02 | MPLX TERMINALS LLC - OREGON TERMINAL | OREGON, Lucas, OH | Pass | State |
| 2023-08-02 | EOG RESOURCES, INC. - WILLIAM DENOON 17-12-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-08-02 | EOG RESOURCES, INC. - WILLIAM DENOON 17-12-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-08-02 | EOG RESOURCES, INC. - WILLIAM DENOON 17-12-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-08-02 | EOG RESOURCES, INC. - HARTLEY 2-13-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-08-02 | EOG RESOURCES, INC. - HARTLEY 2-13-6 PAD | SCIO, Harrison, OH | Pass | State |
| 2023-08-02 | VEOLIA ES TECHNICAL SOLUTIONS, L.L.C. | MIAMISBURG, Montgomery, OH | Pass | State |
| 2023-08-02 | VEOLIA ES TECHNICAL SOLUTIONS, L.L.C. | MIAMISBURG, Montgomery, OH | Pass | State |
| 2023-08-02 | TREMCO CPG | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-08-02 | TREMCO CPG | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-08-01 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-01 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-01 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - CROMIKA 34-10-5 PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - CROMIKA 34-10-5 PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - DEERSVILLE HN FRA PAD | DEERSVILLE, Harrison, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - DEERSVILLE HN FRA PAD | DEERSVILLE, Harrison, OH | Pass | State |
| 2023-08-01 | VALLEY ASPHALT #14 | NEWTOWN, Hamilton, OH | Fail | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | KILGORE COMPRESSOR STATION-UTICA GAS SERVICES, LLC | KILGORE, Carroll, OH | Pass | State |
| 2023-07-27 | ENBRIDGE - SUMMERFIELD COMPRESSOR STATION | CALDWELL, Noble, OH | Pass | State |
| 2023-07-27 | ENBRIDGE - SUMMERFIELD COMPRESSOR STATION | CALDWELL, Noble, OH | Pass | State |
| 2023-07-27 | ENBRIDGE - SUMMERFIELD COMPRESSOR STATION | CALDWELL, Noble, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Fail | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Fail | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-27 | EOG RESOURCES INC - SOEHNLEN 2-9-9 8H | NAVARRE, Stark, OH | Pass | State |
| 2023-07-27 | EOG RESOURCES INC - SOEHNLEN 2-9-9 8H | NAVARRE, Stark, OH | Pass | State |
| 2023-07-27 | EOG RESOURCES INC - SOEHNLEN 2-9-9 8H | NAVARRE, Stark, OH | Pass | State |
| 2023-07-26 | EOG RESOURCES, INC. - HN STO 26 12-11-6 SOUTH PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-07-26 | EOG RESOURCES, INC. - HN STO 26 12-11-6 SOUTH PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-07-26 | EOG RESOURCES, INC. - HN STO 26 12-11-6 SOUTH PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2023-07-26 | THE MEDICAL CENTER COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-07-26 | THE MEDICAL CENTER COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-07-26 | THE MEDICAL CENTER COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-07-26 | THE MEDICAL CENTER COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-07-26 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Fail | State |
| 2023-07-26 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-26 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-26 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2023-07-26 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Fail | State |
| 2023-07-26 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.