EPA Air · stack tests by year
Air-emissions stack tests in 2024
- 39,252Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2024
- California 18,905
- Ohio 2,721
- Oklahoma 1,804
- Indiana 1,704
- New Mexico 1,428
- Florida 1,427
- Wyoming 1,285
- Georgia 1,104
- Pennsylvania 905
- Alabama 721
- Arkansas 569
- Missouri 539
- Iowa 464
- Mississippi 437
- Colorado 400
- Washington 338
- Texas 271
- Wisconsin 269
- North Carolina 254
- Minnesota 250
- West Virginia 230
- South Carolina 223
- Kentucky 218
- Delaware 185
- Montana 180
- Michigan 159
- Virginia 159
- Alaska 158
- Utah 157
- Tennessee 155
- Nebraska 150
- North Dakota 138
- Arizona 126
- Connecticut 122
- New York 115
- Maine 114
- Louisiana 113
- Illinois 109
- Idaho 91
- Nevada 88
- Hawaii 67
- Kansas 64
- New Hampshire 61
- South Dakota 59
- Maryland 58
- Massachusetts 52
- Oregon 35
- Rhode Island 29
- District of Columbia 25
- New Jersey 8
- Puerto Rico 5
- Vermont 4
Other years
Air-emissions stack tests recorded in 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-08-29 | DAVE OMARA CONTRACTOR INC | VERSAILLES, Ripley, IN | Pass | State |
| 2024-08-29 | DAVE OMARA CONTRACTOR INC | VERSAILLES, Ripley, IN | Pass | State |
| 2024-08-29 | DAVE OMARA CONTRACTOR INC | VERSAILLES, Ripley, IN | Pass | State |
| 2024-08-29 | MARTIN MARIETTA MATERIALS - EUDORA QUARRY (AIR) | EUDORA, Douglas, KS | Pass | State |
| 2024-08-29 | WESTLAKE STYRENE LLC - STYRENE MONOMER PRODUCTION FACILITY | SULPHUR, Calcasieu, LA | Pass | State |
| 2024-08-29 | REGENERATE LIVERMORE FALLS LLC | LIVERMORE FALLS, Androscoggin, ME | Pass | State |
| 2024-08-29 | XCEL ENERGY - SHERBURNE COUNTY GENERATING PLANT | BECKER, Sherburne, MN | Pass | State |
| 2024-08-29 | GOLDEN TRIANGLE REGIONAL SOLID WASTE MANAGEMENT AUTHORITY | STARKVILLE, Oktibbeha, MS | Pass | State |
| 2024-08-29 | GOLDEN TRIANGLE REGIONAL SOLID WASTE MANAGEMENT AUTHORITY | STARKVILLE, Oktibbeha, MS | Pass | State |
| 2024-08-29 | GOLDEN TRIANGLE REGIONAL SOLID WASTE MANAGEMENT AUTHORITY | STARKVILLE, Oktibbeha, MS | Pass | State |
| 2024-08-29 | GSP NEWINGTON LLC | NEWINGTON, Rockingham, NH | Pass | State |
| 2024-08-29 | GOLDSTRIKE MINE | CARLIN, Eureka, NV | Pass | State |
| 2024-08-29 | GUARDIAN INDUSTRIES CORP | GENEVA, Ontario, NY | Pass | State |
| 2024-08-29 | ASCENT RESOURCES - UTICA, LLC - CASTON 31-11N-7W | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-08-29 | ASCENT RESOURCES - UTICA, LLC - CASTON 31-11N-7W | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-08-29 | EMERY OLEOCHEMICALS LLC | CINCINNATI, Hamilton, OH | Pass | State |
| 2024-08-29 | EMERY OLEOCHEMICALS LLC | CINCINNATI, Hamilton, OH | Pass | State |
| 2024-08-29 | EMERY OLEOCHEMICALS LLC | CINCINNATI, Hamilton, OH | Pass | State |
| 2024-08-29 | BCE MACH II LLC / MCGUIRE 2 6H STATION | MAYFIELD, Beckham, OK | Pass | State |
| 2024-08-29 | MARKWEST OKLAHOMA GAS CO LLC / CUSTER STABILIZATION STATION | ARAPAHO, Custer, OK | Pass | State |
| 2024-08-29 | CONTINENTAL RESOURCES / TRIPLE RIMER 2 35 26XHW 3 35 26XHM | BLANCHARD, Grady, OK | Pass | State |
| 2024-08-29 | MARKWEST OKLAHOMA GAS CO LLC / STUART NORTH COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2024-08-29 | MARKWEST OKLAHOMA GAS CO LLC / WEST RELAY COMPESSOR STATION | HORNTOWN, Hughes, OK | Pass | State |
| 2024-08-29 | BCE MACH LLC / SANDHILL PAD A | OKARCHE, Kingfisher, OK | Pass | State |
| 2024-08-29 | LEHIGH WHITE CEMENT CO LLC/YORK | YORK, York, PA | Pass | State |
| 2024-08-29 | APPALACHIA MIDSTREAM SVC LLC/GRANVILLE STA 2 | GRANVILLE SUMMIT, Bradford, PA | Pass | State |
| 2024-08-29 | UGI MORAINE EAST GATHERING LLC/RENICK COMP STA | WEST SUNBURY, Butler, PA | Pass | State |
| 2024-08-29 | ALTA PERFORMANCE MATERIALS US, LLC | PITTSBURGH, Allegheny, PA | Fail | Local |
| 2024-08-29 | ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-08-29 | ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-08-29 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | PINEVILLE, Berkeley, SC | Pass | State |
| 2024-08-29 | CAROLINA MOUNTAIN LAND SOLUTIONS LLC — high-priority violation on file | WEST UNION, Oconee, SC | Pass | State |
| 2024-08-29 | C R JACKSON INC - VARNVILLE ASPHALT PLANT — high-priority violation on file | VARNVILLE, Hampton, SC | Pass | State |
| 2024-08-29 | NUSTAR PIPELINE OPERATING PARTNERSHIP LP - MITCHELL | MITCHELL, Davison, SD | Pass | State |
| 2024-08-29 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2024-08-29 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2024-08-29 | DYNAMIC RECYCLING, LLC — high-priority violation on file | BRISTOL, Sullivan, TN | Pass | State |
| 2024-08-29 | CHEVRON PHILLIPS CHEMICAL SWEENY OLD OCEAN FACILITIES — high-priority violation on file | SWEENY, Brazoria, TX | N/A | State |
| 2024-08-29 | ODESSA ECTOR GENERATING STATION | ODESSA, Ector, TX | Pass | State |
| 2024-08-29 | ODESSA ECTOR GENERATING STATION | ODESSA, Ector, TX | Pass | State |
| 2024-08-29 | ODESSA ECTOR GENERATING STATION | ODESSA, Ector, TX | Pass | State |
| 2024-08-29 | ODESSA ECTOR GENERATING STATION | ODESSA, Ector, TX | Pass | State |
| 2024-08-29 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-08-29 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-08-29 | CHEVRON PHILLIPS CHEMICAL PORT ARTHUR FACILITY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-08-29 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-08-29 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-08-29 | COUNTY LINE PROCESSING PLANT | ORLA, Reeves, TX | Pass | State |
| 2024-08-29 | COUNTY LINE PROCESSING PLANT | ORLA, Reeves, TX | Pass | State |
| 2024-08-29 | COUNTY LINE PROCESSING PLANT | ORLA, Reeves, TX | Pass | State |
| 2024-08-29 | COUNTY LINE PROCESSING PLANT | ORLA, Reeves, TX | Pass | State |
| 2024-08-29 | BP WEST COAST PRODUCTS LLC — high-priority violation on file | BLAINE, Whatcom, WA | Pass | Local |
| 2024-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-08-28 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2024-08-28 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2024-08-28 | GEORGIA PACIFIC | PENNINGTON, Choctaw, AL | Pass | State |
| 2024-08-28 | SOUTH FLORIDA MATERIALS CORP. DBA VECENE | MONTGOMERY, Montgomery, AL | Pass | State |
| 2024-08-28 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-08-28 | TATE & LYLE SUCRALOSE LLC | MCINTOSH, Washington, AL | Pass | State |
| 2024-08-28 | LEHIGH CEMENT COMPANY | LEEDS, Jefferson, AL | Pass | Local |
| 2024-08-28 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2024-08-28 | TAYLOR PIT | TAYLOR, Navajo, AZ | Pass | State |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2024-08-28 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.