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 |
|---|---|---|---|---|
| 2024-11-21 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2024-11-21 | GALLAUDET UNIVERSITY — high-priority violation on file | WASHINGTON, District of Columbia, DC | Pending | State |
| 2024-11-21 | GALLAUDET UNIVERSITY — high-priority violation on file | WASHINGTON, District of Columbia, DC | Pass | State |
| 2024-11-21 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-11-21 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-11-21 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-11-21 | TROJAN BATTERY COMPANY, LLC | LITHONIA, DeKalb, GA | Pass | State |
| 2024-11-21 | TROJAN BATTERY COMPANY, LLC | LITHONIA, DeKalb, GA | Pass | State |
| 2024-11-21 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2024-11-21 | JAS. W. GLOVER (0257) | PUHI, Kauai, HI | Pass | State |
| 2024-11-21 | ILC RESOURCES/IOWA LIMESTONE CO-PLTS 1&3 | ALDEN, Hardin, IA | Pass | State |
| 2024-11-21 | PLYMOUTH ENERGY LLC | MERRILL, Plymouth, IA | Pass | State |
| 2024-11-21 | LIPPERT COMPONENTS INCORPORATED PLANT 72 — high-priority violation on file | ELKHART, Elkhart, IN | Pass | State |
| 2024-11-21 | LIPPERT COMPONENTS INCORPORATED PLANT 72 — high-priority violation on file | ELKHART, Elkhart, IN | Pass | State |
| 2024-11-21 | LIPPERT COMPONENTS INCORPORATED PLANT 72 — high-priority violation on file | ELKHART, Elkhart, IN | Pass | State |
| 2024-11-21 | LIPPERT COMPONENTS INCORPORATED PLANT 72 — high-priority violation on file | ELKHART, Elkhart, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | RESPONSIBLE ENERGY OPERATIONS, LLC — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2024-11-21 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | NANSHAN AMERICA ADVANCED ALUMINUM TECHNOLOGIES LLC | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | NANSHAN AMERICA ADVANCED ALUMINUM TECHNOLOGIES LLC | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | NANSHAN AMERICA ADVANCED ALUMINUM TECHNOLOGIES LLC | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2024-11-21 | THE CHEMOURS COMPANY FC, LLC | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2024-11-21 | ENLINK PROCESSING SERVICES LLC - RIVERSIDE FRACTIONATION PLANT | GEISMAR, Ascension, LA | Pass | State |
| 2024-11-21 | ENLINK PROCESSING SERVICES LLC - RIVERSIDE FRACTIONATION PLANT | GEISMAR, Ascension, LA | Pass | State |
| 2024-11-21 | ADAMAS ENERGY LLC - MICIOTTO FACILITY | TAYLORTOWN, Bossier, LA | Pass | State |
| 2024-11-21 | NORTHSHORE MINING CO - SILVER BAY | SILVER BAY, Lake, MN | Pass | State |
| 2024-11-21 | METROPOLITAN ST. LOUIS SEWER DISTRICT BISSELL POINT WWTP | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2024-11-21 | VALERO RENEWABLE FUELS COMPANY — high-priority violation on file | ALBION, Boone, NE | Pass | State |
| 2024-11-21 | CASA BONITA COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-11-21 | CASA BONITA COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-11-21 | EOG - ODIN COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-21 | EOG - ODIN COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-21 | EOG - ODIN COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-21 | EL CAMPEON CTB 17N | JAL, Lea, NM | Pass | State |
| 2024-11-21 | EL CAMPEON CTB 17N | JAL, Lea, NM | Pass | State |
| 2024-11-21 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2024-11-21 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2024-11-21 | OWENS-BROCKWAY GLASS CONTAINER INC | AUBURN, Cayuga, NY | Pass | State |
| 2024-11-21 | ASCENT RESOURCES - UTICA LLC - ROCK RIDGE WRN BL | BARNESVILLE, Belmont, OH | Pass | State |
| 2024-11-21 | ASCENT RESOURCES - UTICA LLC - ROCK RIDGE WRN BL | BARNESVILLE, Belmont, OH | Pass | State |
| 2024-11-21 | ASCENT RESOURCES-UTICA, LLC - WAGLER LND GR | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-11-21 | ASCENT RESOURCES-UTICA, LLC - WAGLER LND GR | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-11-21 | ASCENT RESOURCES-UTICA, LLC - WAGLER LND GR | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-11-21 | ASCENT RESOURCES-UTICA, LLC - ALPHA ATH HR | CADIZ, Harrison, OH | Pass | State |
| 2024-11-21 | ASCENT RESOURCES-UTICA, LLC - ALPHA ATH HR | CADIZ, Harrison, OH | Pass | State |
| 2024-11-21 | ASCENT RESOURCES-UTICA, LLC - ALPHA ATH HR | CADIZ, Harrison, OH | Pass | State |
| 2024-11-21 | TEXAS EASTERN TRANSMISSIONS L.P. - SOMERSET | SOMERSET, Perry, OH | Pass | State |
| 2024-11-21 | BLUE MOUNTAIN MIDSTREAM LLC / PREAKNESS COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2024-11-21 | BCE MACH LLC / ELMENHORST 1H 06 07 IH 31 30 PAD | UNION CITY, Canadian, OK | Pass | State |
| 2024-11-21 | PEOPLES ELECTRIC COOP / LITTLE DIXIE FACILITY | CENTRAHOMA, Coal, OK | Pass | State |
| 2024-11-21 | ET GATHERING PROCESSING LLC / NINNEKAH COMPRESSOR STATION | NINNEKAH, Grady, OK | Pass | State |
| 2024-11-21 | SANTA FE OPERATING LLC / MCKAY COMPRESSOR STATION | MCALESTER, Pittsburg, OK | Pass | State |
| 2024-11-21 | ET GATHERING PROCESSING LLC / POTEET COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2024-11-21 | COLUMBIA GAS TRANS CORP/WAYNESBURG COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2024-11-21 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Fail | State |
| 2024-11-21 | CHINA JUSHI USA CORPORATION — high-priority violation on file | COLUMBIA, Richland, SC | Pass | State |
| 2024-11-21 | POET BIOREFINING - MITCHELL LLC | MITCHELL, Davison, SD | Pass | State |
| 2024-11-21 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2024-11-21 | KOPPERS PERFORMANCE CHEMICAL | MILLINGTON, Shelby, TN | Pass | Local |
| 2024-11-21 | PORT NECHES OPERATIONS — high-priority violation on file | PORT NECHES, Jefferson, TX | Pass | State |
| 2024-11-21 | PORT NECHES OPERATIONS — high-priority violation on file | PORT NECHES, Jefferson, TX | Pass | State |
| 2024-11-21 | LATERAL C COMPRESSOR STATION | PARADISE, Wise, TX | Pass | State |
| 2024-11-21 | TESORO WEST COAST/FORMER BP AMOCO | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2024-11-21 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2024-11-21 | AMERICAN ELECTRIC POWER-CLINCH RIVER PLANT | CLEVELAND, Russell, VA | Pass | State |
| 2024-11-21 | US ENERGY DEPT - HANFORD — high-priority violation on file | RICHLAND, Benton, WA | Pending | State |
| 2024-11-21 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-11-21 | ANTERO MIDSTREAM LLC, GRAYS PEAK CS | READER, Wetzel, WV | Pass | State |
| 2024-11-21 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-21 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-21 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their 2024 stack tests. Nationwide, 39,252 stack tests were recorded in 2024.