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 |
|---|---|---|---|---|
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-12-13 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-13 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-13 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-13 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-12 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2023-12-12 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2023-12-12 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2023-12-12 | CONSTELLIUM — high-priority violation on file | MUSCLE SHOALS, Colbert, AL | Pass | State |
| 2023-12-12 | CEMEX SOUTHEAST LLC | DEMOPOLIS, Marengo, AL | Pass | State |
| 2023-12-12 | WESTERN FOODS DELTA REGION | PINE BLUFF, Jefferson, AR | Pass | State |
| 2023-12-12 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2023-12-12 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2023-12-12 | RAZORBACK GATHERING COMPANY, LLC. - LITTLE RED RIVER CPF 1 | BALD KNOB, White, AR | Pass | State |
| 2023-12-12 | FREEPORT MCMORAN - MIAMI SMELTER | MIAMI, Gila, AZ | Pass | State |
| 2023-12-12 | LA COUNTY SANITATION DISTRICTS (SPADRA) | POMONA, Los Angeles, CA | Pass | Local |
| 2023-12-12 | NEW BASIS (FRMLY ASSOCIATED PLASTICS) | RIVERSIDE, Riverside, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | CITY OF CLOVIS - LANDFILL | CLOVIS, Fresno, CA | Pass | Local |
| 2023-12-12 | ROCKY MT MIDSTREAM- KEENESBURG GAS PLANT | KEENESBURG, Weld, CO | Pass | State |
| 2023-12-12 | FLORIDA POWER & LIGHT COMPANY | FORT LAUDERDALE, Broward, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-12-12 | MCK TERMINALS, LLC — high-priority violation on file | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-12-12 | MCK TERMINALS, LLC — high-priority violation on file | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-12-12 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2023-12-12 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2023-12-12 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2023-12-12 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2023-12-12 | GERDAU AMERISTEEL US INC. | CARTERSVILLE, Bartow, GA | Pass | State |
| 2023-12-12 | GERDAU AMERISTEEL US INC. | CARTERSVILLE, Bartow, GA | Pass | State |
| 2023-12-12 | AGRI-PRODUCTS, INC. | FITZGERALD, Ben Hill, GA | Pass | State |
| 2023-12-12 | AGRI-PRODUCTS, INC. | FITZGERALD, Ben Hill, GA | Fail | State |
| 2023-12-12 | AGRI-PRODUCTS, INC. | FITZGERALD, Ben Hill, GA | Pass | State |
| 2023-12-12 | ARCH WOOD PROTECTION, INC. — high-priority violation on file | CONLEY, DeKalb, GA | Pass | State |
| 2023-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-12-12 | HAWK ROAD ENERGY FACILITY | FRANKLIN, Heard, GA | Pass | State |
| 2023-12-12 | PIEDMONT GREEN POWER, LLC | BARNESVILLE, Lamar, GA | Pass | State |
| 2023-12-12 | PIEDMONT GREEN POWER, LLC | BARNESVILLE, Lamar, GA | Pass | State |
| 2023-12-12 | PIEDMONT GREEN POWER, LLC | BARNESVILLE, Lamar, GA | Pass | State |
| 2023-12-12 | JAS. W. GLOVER - HILO (0010) | UNKNOWN, Undetermined, HI | Pass | State |
| 2023-12-12 | ZINPRO CORP - GARNER — high-priority violation on file | GARNER, Hancock, IA | Fail | State |
| 2023-12-12 | BLUE MOUND COMPRESSOR STATION | BLUE MOUND, Christian, IL | Pass | State |
| 2023-12-12 | BLUE MOUND COMPRESSOR STATION | BLUE MOUND, Christian, IL | Pass | State |
| 2023-12-12 | CITY WATER LIGHT & POWER | SPRINGFIELD, Sangamon, IL | Pass | State |
| 2023-12-12 | CITY WATER LIGHT & POWER | SPRINGFIELD, Sangamon, IL | Pass | State |
| 2023-12-12 | CITY WATER LIGHT & POWER | SPRINGFIELD, Sangamon, IL | Pass | State |
| 2023-12-12 | TWIN BRIDGES RECYCLING AND DISPOSAL FACILITY — high-priority violation on file | DANVILLE, Hendricks, IN | Pass | State |
| 2023-12-12 | TWIN BRIDGES RECYCLING AND DISPOSAL FACILITY — high-priority violation on file | DANVILLE, Hendricks, IN | Pass | State |
| 2023-12-12 | SABINE PASS LNG LP AND SABINE PASS LIQUEFACTION LLC - SABINE PASS LNG TERMINAL | CAMERON, Cameron, LA | Pass | State |
| 2023-12-12 | REWORLD HAVERHILL LLC F.K.A. COVANTA HAVERHILL INCORPORATED | HAVERHILL, TOWN OF, Essex, MA | Pass | State |
| 2023-12-12 | ND PAPER INC. | RUMFORD, Oxford, ME | Pass | State |
| 2023-12-12 | MARTIN MARIETTA MAGNESIA SPECIALTIES, LLC | MANISTEE, Manistee, MI | Pass | State |
| 2023-12-12 | GREDE IRON MOUNTAIN, LLC — high-priority violation on file | KINGSFORD, Dickinson, MI | Pass | State |
| 2023-12-12 | GLWA WATER RESOURCE RECOVERY FACILITY | DETROIT, Wayne, MI | Pass | State |
| 2023-12-12 | BRENT RUN LANDFILL | MONTROSE, Genesee, MI | Pass | State |
| 2023-12-12 | US STEEL CORP - MINNTAC | MOUNTAIN IRON, St. Louis, MN | Pass | State |
| 2023-12-12 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2023-12-12 | MASONITE CORPORATION — high-priority violation on file | LAUREL, Jones, MS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.