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 |
|---|---|---|---|---|
| 2024-12-12 | AIR PROD & CHEM INC | CARSON, Los Angeles, CA | Pass | Local |
| 2024-12-12 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-12 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-12 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-12 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-12 | NORTHWEST PIPELINE - PLEASANT VIEW C.S. | DOLORES 13.1 MI. NW OF, Montezuma, CO | Pass | State |
| 2024-12-12 | NORTHWEST PIPELINE - PLEASANT VIEW C.S. | DOLORES 13.1 MI. NW OF, Montezuma, CO | Pass | State |
| 2024-12-12 | PUBLIC SERVICE CO - HAYDEN PLT | HAYDEN, Routt, CO | Pass | State |
| 2024-12-12 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2024-12-12 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2024-12-12 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-12-12 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-12-12 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-12-12 | LEE COUNTY DEPT. OF SOLID WASTE MGT. | FORT MYERS, Lee, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-12 | ATLANTA GAS LIGHT CO. — high-priority violation on file | BALL GROUND, Cherokee, GA | Pass | State |
| 2024-12-12 | STERIGENICS U.S. LLC | ATLANTA, Cobb, GA | Pass | State |
| 2024-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-12 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-12 | PIEDMONT GREEN POWER, LLC | BARNESVILLE, Lamar, GA | Pass | State |
| 2024-12-12 | PIEDMONT GREEN POWER, LLC | BARNESVILLE, Lamar, GA | Pass | State |
| 2024-12-12 | PIEDMONT GREEN POWER, LLC | BARNESVILLE, Lamar, GA | Pass | State |
| 2024-12-12 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2024-12-12 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2024-12-12 | MAQUOKETA MUNICIPAL ELECTRIC UTILITY-N&S | MAQUOKETA (HISTORICAL), Jackson, IA | Pass | State |
| 2024-12-12 | WASHINGTON MUN. POWER PLANT (AIR) | WASHINGTON, Washington, KS | Pass | State |
| 2024-12-12 | PLACID REFINING COMPANY LLC - PORT ALLEN REFINERY | PORT ALLEN, West Baton Rouge, LA | Pass | State |
| 2024-12-12 | PLACID REFINING COMPANY LLC - PORT ALLEN REFINERY | PORT ALLEN, West Baton Rouge, LA | Pass | State |
| 2024-12-12 | ND PAPER INC. | RUMFORD, Oxford, ME | Pass | State |
| 2024-12-12 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2024-12-12 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2024-12-12 | TILDEN MINING COMPANY LC | ISHPEMING, Marquette, MI | Pass | State |
| 2024-12-12 | CORTEVA LLC — high-priority violation on file | HARBOR BEACH, Huron, MI | Pass | State |
| 2024-12-12 | THE ANDERSONS RENEWABLES LLC | ALBION, Calhoun, MI | Pass | State |
| 2024-12-12 | GRAYLING GENERATING STATION LTD PARTNER | GRAYLING, Crawford, MI | Pass | State |
| 2024-12-12 | PIONEER METAL FINISHING - STEPHENS ROAD | WARREN, Macomb, MI | Pass | State |
| 2024-12-12 | COLUMBIA SANITARY LANDFILL | COLUMBIA, Boone, MO | Pass | State |
| 2024-12-12 | COLUMBIA SANITARY LANDFILL | COLUMBIA, Boone, MO | Pass | State |
| 2024-12-12 | COLUMBIA SANITARY LANDFILL | COLUMBIA, Boone, MO | Pass | State |
| 2024-12-12 | GLOBAL CELLULOSE FIBERS - RIEGELWOOD MILL | RIEGELWOOD, Columbus, NC | Pass | State |
| 2024-12-12 | DAVIDSON GAS PRODUCERS, LLC - DAVIDSON CO. LANDFILL | LEXINGTON, Davidson, NC | Pass | State |
| 2024-12-12 | DAKOTA GASIFICATION COMPANY (DGC) - GREAT PLAINS SYNFUELS PLANT - AQ | BEULAH, Mercer, ND | Pass | State |
| 2024-12-12 | NPPD GERALD GENTLEMAN STATION | SUTHERLAND, Lincoln, NE | Pass | State |
| 2024-12-12 | EOG - POSEIDON LOCAL GAS LIFT | MALAGA, Lea, NM | Pass | State |
| 2024-12-12 | EOG - POSEIDON LOCAL GAS LIFT | MALAGA, Lea, NM | Pass | State |
| 2024-12-12 | SUPREME COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-12 | SUPREME COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-12 | SOUTHSIDE WATER RECLAMATION FACILITY | ALBUQUERQUE, Bernalillo, NM | Pass | Local |
| 2024-12-12 | WIELAND FLAT COMPRESSOR STATION | ELKO, Elko, NV | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2024-12-12 | NORTHSTAR BLUESCOPE STEEL, LLC | DELTA, Fulton, OH | Pass | State |
| 2024-12-12 | NORTHSTAR BLUESCOPE STEEL, LLC | DELTA, Fulton, OH | Pass | State |
| 2024-12-12 | NORTHSTAR BLUESCOPE STEEL, LLC | DELTA, Fulton, OH | Pass | State |
| 2024-12-12 | NORTHSTAR BLUESCOPE STEEL, LLC | DELTA, Fulton, OH | Pass | State |
| 2024-12-12 | EOG RESOURCES, INC. - SHUGERT GY CEN PAD | CAMBRIDGE, Guernsey, OH | Pass | State |
| 2024-12-12 | EOG RESOURCES, INC. - SHUGERT GY CEN PAD | CAMBRIDGE, Guernsey, OH | Pass | State |
| 2024-12-12 | FW MIDCON I LLC / JACQUEZ 1H 18X | TABLER, Grady, OK | Pass | State |
| 2024-12-12 | FW MIDCON I LLC / MCCORN 0704 2HW 3HM 4HM 18X | BLANCHARD, McClain, OK | Pass | State |
| 2024-12-12 | TEXAS EASTERN TRANS LP/ARMAGH STA | NEW FLORENCE, Indiana, PA | Pass | State |
| 2024-12-12 | SECCRA LDFL/LONDON GROVE TWP | WEST GROVE, Chester, PA | Pass | State |
| 2024-12-12 | SUSQUEHANNA GATHERING CO 1 LLC/CDP 3 | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2024-12-12 | ALLEGHENY ENERGY SUPPLY/SPRINGDALE | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-12-12 | RHODE ISLAND LFG GENCO LLC — high-priority violation on file | JOHNSTON, TOWN OF, Providence, RI | Pass | State |
| 2024-12-12 | UNITED STATES DOE - SAVANNAH RIVER SITE (SRNS, SRMC, BSRA), LLC | AIKEN, Aiken, SC | Pass | State |
| 2024-12-12 | CRYOVAC INC - SIMPSONVILLE PLANT | SIMPSONVILLE, Greenville, SC | Pass | State |
| 2024-12-12 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-12-12 | PACIFICORP LAKESIDE (SUMMIT VINEYARD) | VINEYARD, Utah, UT | Pass | State |
| 2024-12-12 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-12 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-12 | FONTENELLE STATION (MOUNTAIN GAS RESOURCES LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-11 | GEORGIA PACIFIC | PENNINGTON, Choctaw, AL | Pass | State |
| 2024-12-11 | GP CELLULOSE ALABAMA RIVER CELLULOSE LLC | PERDUE HILL, Monroe, AL | 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.