EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-30 | ATLANTA GAS LIGHT COMPANY - RIVERDALE LNG PLANT — high-priority violation on file | RIVERDALE, Clayton, GA | Pass | State |
| 2023-08-30 | ATLANTA GAS LIGHT COMPANY - RIVERDALE LNG PLANT — high-priority violation on file | RIVERDALE, Clayton, GA | Pass | State |
| 2023-08-30 | ATLANTA GAS LIGHT COMPANY - RIVERDALE LNG PLANT — high-priority violation on file | RIVERDALE, Clayton, GA | Pass | State |
| 2023-08-30 | HECO - WAIAU | PEARL CITY, Honolulu, HI | Pass | State |
| 2023-08-30 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2023-08-30 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2023-08-30 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2023-08-30 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2023-08-30 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2023-08-30 | LSCP LP DBA LITTLE SIOUX CORN PROCESSORS — high-priority violation on file | MARCUS, Cherokee, IA | Pass | State |
| 2023-08-30 | POET BIOREFINING - MENLO, LLC | MENLO, Guthrie, IA | Pass | State |
| 2023-08-30 | AMANA SOCIETY SERVICE CO | MIDDLE AMANA, Iowa, IA | Pass | State |
| 2023-08-30 | AMANA SOCIETY SERVICE CO | MIDDLE AMANA, Iowa, IA | Pass | State |
| 2023-08-30 | AMANA SOCIETY SERVICE CO | MIDDLE AMANA, Iowa, IA | Pass | State |
| 2023-08-30 | AMANA SOCIETY SERVICE CO | MIDDLE AMANA, Iowa, IA | Pass | State |
| 2023-08-30 | AMANA SOCIETY SERVICE CO | MIDDLE AMANA, Iowa, IA | Pass | State |
| 2023-08-30 | AMANA SOCIETY SERVICE CO | MIDDLE AMANA, Iowa, IA | Pass | State |
| 2023-08-30 | TWIN BRIDGES RECYCLING AND DISPOSAL FACILITY — high-priority violation on file | DANVILLE, Hendricks, IN | Pass | State |
| 2023-08-30 | TWIN BRIDGES RECYCLING AND DISPOSAL FACILITY — high-priority violation on file | DANVILLE, Hendricks, IN | Pass | State |
| 2023-08-30 | ECOBAT RESOURCES INDIANA LLC | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-08-30 | OPTA WALKERTON | WALKERTON, St. Joseph, IN | Pass | State |
| 2023-08-30 | REGENCY INTRASTATE GAS LP - MAINLINE COMPRESSOR STATION | BRYCELAND, Bienville, LA | Pass | State |
| 2023-08-30 | XCEL ENERGY - SHERBURNE COUNTY GENERATING PLANT | BECKER, Sherburne, MN | Pass | State |
| 2023-08-30 | MARATHON SAINT PAUL PARK REFINERY | SAINT PAUL PARK, Washington, MN | Pass | State |
| 2023-08-30 | FORD MOTOR CO-KANSAS CITY ASSEMBLY PLANT | CLAYCOMO, Clay, MO | N/A | State |
| 2023-08-30 | FORD MOTOR CO-KANSAS CITY ASSEMBLY PLANT | CLAYCOMO, Clay, MO | N/A | State |
| 2023-08-30 | FREDERICKTOWN ENERGY CENTER | FREDERICKTOWN, Madison, MO | Pass | State |
| 2023-08-30 | FREDERICKTOWN ENERGY CENTER | FREDERICKTOWN, Madison, MO | Pass | State |
| 2023-08-30 | CAROLINA POULTRY POWER RG1, LLC | FARMVILLE, Pitt, NC | Pass | State |
| 2023-08-30 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | Pass | State |
| 2023-08-30 | PLATTE GENERATING STATION | GRAND ISLAND, Hall, NE | N/A | State |
| 2023-08-30 | PLATTE GENERATING STATION | GRAND ISLAND, Hall, NE | N/A | State |
| 2023-08-30 | HF SINCLAIR NAVAJO REFINING LLC (ARTESIA) — high-priority violation on file | ARTESIA, Eddy, NM | Pass | State |
| 2023-08-30 | FLORENCE STATE 23 FACILITY | JAL, Lea, NM | Pass | State |
| 2023-08-30 | RODNEY ROBINSON NORTH FACILITY | EUNICE, Lea, NM | Pass | State |
| 2023-08-30 | GARFIELD BOOSTER STATION | LOVING, Lea, NM | Pass | State |
| 2023-08-30 | PILOT PEAK PLANT | WEST WENDOVER, Elko, NV | Pass | State |
| 2023-08-30 | GOLDSTRIKE MINE | CARLIN, Eureka, NV | Pass | State |
| 2023-08-30 | TRIVIUM ALUMINUM PACKAGING USA CORPORATION | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-30 | TRIVIUM ALUMINUM PACKAGING USA CORPORATION | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-30 | PILKINGTON NORTH AMERICA INC — high-priority violation on file | ROSSFORD, Wood, OH | Pass | State |
| 2023-08-30 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-08-30 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-08-30 | BLUE RACER MIDSTREAM, LLC - HAYES STATION | SALESVILLE, Guernsey, OH | Pass | State |
| 2023-08-30 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-30 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-30 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-30 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-30 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-30 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2023-08-30 | EMERY OLEOCHEMICALS LLC | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-08-30 | EMERY OLEOCHEMICALS LLC | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-08-30 | EMERY OLEOCHEMICALS LLC | CINCINNATI, Hamilton, OH | Pass | State |
| 2023-08-30 | MARKWEST OKLAHOMA GAS CO LLC / ALPHA COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-08-30 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-08-30 | MERCK SHARP & DOHME LLC/WEST PT | WEST POINT, Montgomery, PA | Pass | State |
| 2023-08-30 | HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file | FLEETWOOD, Berks, PA | Pass | State |
| 2023-08-30 | DIVERSIFIED PROD MARCHAND COMP STA | INDIANA, Indiana, PA | Pass | State |
| 2023-08-30 | CHESAPEAKE APPALACHIA LLC/AMCOR WELLPAD | MESHOPPEN, Wyoming, PA | Pass | State |
| 2023-08-30 | MITSUBISHI CHEMICAL AMERICA (FORMERLY LUCITE INC.) | MEMPHIS, Shelby, TN | Pass | Local |
| 2023-08-30 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-30 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-30 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-30 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-30 | WEST KARNES CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-08-30 | GEORG EF NOS 18H 19H AND 20H PRODUCTION FACILITY | GILLETT, Karnes, TX | Pass | State |
| 2023-08-30 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2023-08-30 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2023-08-30 | KING CO SOLID WASTE OP SEC CEDAR HILLS | MAPLE VALLEY, King, WA | Pass | Local |
| 2023-08-30 | NEENAH FOUNDRY COMPANY - NEENAH OPERATIONS (W2179) — high-priority violation on file | NEENAH, Wood, WI | Pass | State |
| 2023-08-30 | QUIKRETE CONSTRUCTION MATERIALS, LLC, QUIKRETE CEMENT — high-priority violation on file | MARTINSBURG, Berkeley, WV | Pass | State |
| 2023-08-30 | JUPITER ALUMINUM CORPORATION, JUPITER COIL COATING | WELLSBURG, Brooke, WV | Pass | State |
| 2023-08-29 | SSAB ALABAMA INC | AXIS, Mobile, AL | Pass | State |
| 2023-08-29 | SSAB ALABAMA INC | AXIS, Mobile, AL | Pass | State |
| 2023-08-29 | HARRELL'S COATING SOLUTIONS, LLC | SYLACAUGA, Talladega, AL | Pass | State |
| 2023-08-29 | ARKANSAS SPECIALTY SANDS, LLC. | CAVE CITY, Sharp, AR | Pass | State |
| 2023-08-29 | ARKANSAS SPECIALTY SANDS, LLC. | CAVE CITY, Sharp, AR | Pass | State |
| 2023-08-29 | ARKANSAS SPECIALTY SANDS, LLC. | CAVE CITY, Sharp, AR | Pass | State |
| 2023-08-29 | ARKANSAS SPECIALTY SANDS, LLC. | CAVE CITY, Sharp, AR | Pass | State |
| 2023-08-29 | ARKANSAS SPECIALTY SANDS, LLC. | CAVE CITY, Sharp, AR | Pass | State |
| 2023-08-29 | USMC - YERMO LOGISTICS CNTR | BARSTOW, San Bernardino, CA | Pass | Local |
| 2023-08-29 | ARLON GRAPHICS LLC | PLACENTIA, Orange, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-29 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.