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 |
|---|---|---|---|---|
| 2024-12-17 | CARGILL, INC. - GAINESVILLE VEGETABLE OIL MILL AND REFINERY | GAINESVILLE, Hall, GA | Pass | State |
| 2024-12-17 | CELLOFOAM NORTH AMERICA, INC. | GAINESVILLE, Hall, GA | Pass | State |
| 2024-12-17 | ALTA MUNICIPAL UTILITIES | ALTA, Buena Vista, IA | Pass | State |
| 2024-12-17 | LOUIS DREYFUS COMPANY GRAND JUNCTION, LLC | GRAND JUNCTION, Greene, IA | Pass | State |
| 2024-12-17 | NORTHERN NATURAL GAS | LAKE MILLS, Winnebago, IA | Pass | State |
| 2024-12-17 | TESORO LOGISTICS OPERATIONS-BOISE | BOISE, Ada, ID | Pending | State |
| 2024-12-17 | BASIN RESOURCES INC 00654 | ATHOL, Kootenai, ID | Pass | State |
| 2024-12-17 | HEIDELBERG MATERIALS MIDWEST AGG INCORPORATED HARDING ST QUA | INDIANAPOLIS, Marion, IN | Pass | State |
| 2024-12-17 | LOUISVILLE GAS & ELECTRIC | MAGNOLIA, Larue, KY | Pass | State |
| 2024-12-17 | LOUISVILLE GAS & ELECTRIC | MAGNOLIA, Larue, KY | Pass | State |
| 2024-12-17 | AMERICAN FUJI SEAL INC | BARDSTOWN, Nelson, KY | Pass | State |
| 2024-12-17 | MIDWESTERN GAS TRANSMISSION CO - HARTFORD COMPRESSOR STATION | HARTFORD, Ohio, KY | Pass | State |
| 2024-12-17 | KINGSFORD MANUFACTURING CO | BURNSIDE, Pulaski, KY | Pass | State |
| 2024-12-17 | TENNESSEE GAS PIPELINE COMPANY LLC - COMPRESSOR STATION 527 | PORT SULPHUR, Plaquemines, LA | Pass | State |
| 2024-12-17 | TENNESSEE GAS PIPELINE COMPANY LLC - COMPRESSOR STATION 527 | PORT SULPHUR, Plaquemines, LA | Pass | State |
| 2024-12-17 | MILLERSVILLE LANDFILL GAS TO ELECTRICITY FACILITY | SEVERN, Anne Arundel, MD | Pass | State |
| 2024-12-17 | CRISFIELD ENERGY CENTER | CRISFIELD, Somerset, MD | Pass | State |
| 2024-12-17 | EXETER AGRI-ENERGY, LLC | EXETER, TOWN OF, Penobscot, ME | Pass | State |
| 2024-12-17 | EXETER AGRI-ENERGY, LLC | EXETER, TOWN OF, Penobscot, ME | Pass | State |
| 2024-12-17 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2024-12-17 | EAST JORDAN FOUNDRY, LLC | ELMIRA, Antrim, MI | Pass | State |
| 2024-12-17 | AMERICAN CRYSTAL SUGAR - EAST GRAND FORKS | EAST GRAND FORKS, Polk, MN | Pass | State |
| 2024-12-17 | HIGHWATER ETHANOL LLC | LAMBERTON, Redwood, MN | Pass | State |
| 2024-12-17 | WLSSD WWTP | DULUTH, St. Louis, MN | Pass | State |
| 2024-12-17 | OLD CAROLINA BRICK COMPANY | SALISBURY, Rowan, NC | Pass | State |
| 2024-12-17 | MARTIN MARIETTA MATERIALS, INC. - WILSON QUARRY | WILSON, Wilson, NC | Pass | State |
| 2024-12-17 | STERIGENICS US, INC. | CHARLOTTE, Mecklenburg, NC | Pass | Local |
| 2024-12-17 | COLD RIVER MATERIALS - WALPOLE (S&G) | WALPOLE, Cheshire, NH | Fail | State |
| 2024-12-17 | COLD RIVER MATERIALS - WALPOLE (S&G) | WALPOLE, Cheshire, NH | Pass | State |
| 2024-12-17 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-12-17 | HACKBERRY COMPRESSOR STATION | WHITES CITY, Eddy, NM | Pass | State |
| 2024-12-17 | BLOSSOM COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-12-17 | DARK STAR COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-12-17 | RED EAGLE 18 CTB 1 | LA HUERTA, Eddy, NM | Pass | State |
| 2024-12-17 | RED EAGLE 18 CTB 1 | LA HUERTA, Eddy, NM | Pass | State |
| 2024-12-17 | FRAC CAT COMPRESSOR STATION | LOVING, Lea, NM | Pass | State |
| 2024-12-17 | FRAC CAT COMPRESSOR STATION | LOVING, Lea, NM | Pass | State |
| 2024-12-17 | PAC MAN 36 FED COM BATTERY AND MERCHANT GAP #502H | EUNICE, Lea, NM | Pass | State |
| 2024-12-17 | COLD SNACK COMPRESSOR STATION | WHITES CITY, Lea, NM | Pass | State |
| 2024-12-17 | ASCENT RESOURCES - UTICA LLC - WHEELING VALLEY WHL BL | MAYNARD, Belmont, OH | Pass | State |
| 2024-12-17 | ASCENT RESOURCES - UTICA LLC - WHEELING VALLEY WHL BL | MAYNARD, Belmont, OH | Pass | State |
| 2024-12-17 | ASCENT RESOURCES - UTICA LLC - WHEELING VALLEY WHL BL | MAYNARD, Belmont, OH | Pass | State |
| 2024-12-17 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2024-12-17 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2024-12-17 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2024-12-17 | EASTERN GAS TRANSMISSION & STORAGE, INC MULLETT STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2024-12-17 | EASTERN GAS TRANSMISSION & STORAGE, INC MULLETT STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2024-12-17 | EASTERN GAS TRANSMISSION & STORAGE, INC MULLETT STATION | SWITZERLAND, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2024-12-17 | ET GATHERING PROCESSING LLC / DRY CREEK COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2024-12-17 | ET GATHERING PROCESSING LLC / DRY CREEK COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2024-12-17 | XTO ENERGY INC / HOBBS 5 6 7 30H19X 8 9 30H19X PRODUCTI | GENE AUTRY, Carter, OK | Pass | State |
| 2024-12-17 | ONEOK FIELD SERVICES CO LLC / MAST EAST FOSS COMPRESSOR STATION | WEATHERFORD, Custer, OK | Pass | State |
| 2024-12-17 | DCP OPERATING CO LP / HOBIT COMPRESSOR STATION — high-priority violation on file | ARNETT, Ellis, OK | Pass | State |
| 2024-12-17 | VALIDUS ENERGY II MIDCON LLC / AMERICAN PHARAOH PAD | TUTTLE, Grady, OK | Pass | State |
| 2024-12-17 | VM ARKOMA STACK LLC / BONANZA COMPRESSOR STATION | CALVIN, Hughes, OK | Pass | State |
| 2024-12-17 | VM ARKOMA STACK LLC / BONANZA COMPRESSOR STATION | CALVIN, Hughes, OK | Pass | State |
| 2024-12-17 | GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file | CLATSKANIE, Clatsop, OR | Pass | State |
| 2024-12-17 | CRODA INC/DRAKETOWN ROAD | MILL HALL, Clinton, PA | Pass | State |
| 2024-12-17 | PENN COLOR/HATFIELD | HATFIELD, Montgomery, PA | Pass | State |
| 2024-12-17 | APPALACHIA MIDSTREAM SVC LLC/GRANVILLE STA 2 | GRANVILLE SUMMIT, Bradford, PA | Pass | State |
| 2024-12-17 | EQM GATHERING OPCO LLC/MAKO COMP STA | AMWELL, Washington, PA | Pass | State |
| 2024-12-17 | BVK OPERATING LLC/SICKLER COMP STA | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2024-12-17 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2024-12-17 | MITSUBISHI CHEMICAL AMERICA (FORMERLY LUCITE INC.) | MEMPHIS, Shelby, TN | Pass | Local |
| 2024-12-17 | ASHLAND SPECIALTY INGREDIENTS GP | HOPEWELL, Hopewell (city), VA | Pass | State |
| 2024-12-17 | NIPPON DYNAWAVE PACKAGING COMPANY LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-12-17 | NORTHWEST PIPELINE CORP SUMAS | SUMAS, Whatcom, WA | Pass | Local |
| 2024-12-17 | NORTHWEST PIPELINE CORP SUMAS | SUMAS, Whatcom, WA | Pass | Local |
| 2024-12-17 | WISCONSIN ALUMINUM FOUNDRY — high-priority violation on file | MANITOWOC, Manitowoc, WI | Pass | State |
| 2024-12-17 | MARATHON COUNTY LANDFILL | RINGLE, Marathon, WI | Pass | State |
| 2024-12-17 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2024-12-17 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | EVANSVILLE, Natrona, WY | Pass | State |
| 2024-12-17 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | EVANSVILLE, Natrona, WY | Pass | State |
| 2024-12-17 | CHAIN LAKES I5 35 4H-8H PAD (CROWHEART ENERGY, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-17 | CHAIN LAKES I5 35 4H-8H PAD (CROWHEART ENERGY, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-17 | CHAIN LAKES I5 35 4H-8H PAD (CROWHEART ENERGY, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-16 | DESOTO GATHERING COMPANY, LLC.-STONEFLY CPF 1 | SIDON, Cleburne, AR | Pass | State |
| 2024-12-16 | FLYWHEEL ENERGY COMPANY - PUMA NORTH CPF-1 | WILBURN, Cleburne, AR | Pass | State |
| 2024-12-16 | USMC - AGCC 29 PALMS | TWENTYNINE PALMS, San Bernardino, CA | Pass | Local |
| 2024-12-16 | WALNUT CREEK ENERGY, LLC | CITY OF INDUSTRY, Los Angeles, CA | Pass | Local |
| 2024-12-16 | MOLSON COORS USA LLC - GOLDEN BREWERY — high-priority violation on file | GOLDEN AREA, Jefferson, CO | Pass | State |
| 2024-12-16 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-12-16 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-12-16 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-12-16 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-12-16 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-12-16 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-12-16 | GA POWER CO. - PLANT SCHERER | JULIETTE, Monroe, GA | Pass | State |
| 2024-12-16 | COVERT GENERATING STATION — high-priority violation on file | COVERT, Van Buren, MI | Pass | State |
| 2024-12-16 | SMR AUTOMOTIVE SYSTEMS USA, INC. | MARYSVILLE, St. Clair, MI | Pass | State |
| 2024-12-16 | UPPER MICHIGAN ENERGY RESOURCES -F.D. KUESTER G.S. | NEGAUNEE, Marquette, MI | Pass | State |
| 2024-12-16 | OWENS CORNING - MINNEAPOLIS PLANT | MINNEAPOLIS, Hennepin, MN | Pass | State |
| 2024-12-16 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2024-12-16 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2024-12-16 | SPUD MUFFIN 31 CTB & WELLPAD 1 & HARROUN TRUST 31 2H BATTERY | MALAGA, Eddy, NM | Pass | State |
| 2024-12-16 | TURKEY TRACK CENTRAL GAS LIFT STATION | LOCO HILLS, Eddy, NM | Pass | State |
| 2024-12-16 | ISLAND BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2024-12-16 | CABO WABO COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-12-16 | RED EAGLE 18 CTB 1 | LA HUERTA, Eddy, NM | Pass | State |
| 2024-12-16 | RED EAGLE 18 CTB 1 | LA HUERTA, Eddy, NM | 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.