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 |
|---|---|---|---|---|
| 2024-12-11 | ET GATHERING PROCESSING LLC / F AND H COMPRESSOR STATION | WILBURTON, Latimer, OK | Pass | State |
| 2024-12-11 | TEXAS EASTERN TRANS LP/TE DELMONT COMP STA | GREENSBURG, Westmoreland, PA | Pass | State |
| 2024-12-11 | ROVER PIPELINE LLC/BULGER COMP STA | BULGER, Washington, PA | Pass | State |
| 2024-12-11 | UGI AUBURN GATHERING LLC/NORTHMORELAND COMP STA | DALLAS, Wyoming, PA | Pass | State |
| 2024-12-11 | ALLEGHENY ENERGY SUPPLY/SPRINGDALE | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2024-12-11 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - ABERDEEN | ABERDEEN, Brown, SD | Pass | State |
| 2024-12-11 | ULTIUM CELLS LLC | CITY OF SPRING HILL, Maury, TN | Pass | State |
| 2024-12-11 | VALERO REFINING COMPANY-TN LLC | MEMPHIS, Shelby, TN | Pass | Local |
| 2024-12-11 | NORTHRUP GRUMMAN SYSTEMS - PROMONTORY (FORMERLY ATK) | PROMONTORY (HISTORICAL), Box Elder, UT | Pass | State |
| 2024-12-11 | WESTROCK VIRGINIA LLC - COVINGTON | COVINGTON, Covington (city), VA | Pass | State |
| 2024-12-11 | PACKAGING CORPORATION OF AMERICA — high-priority violation on file | WALLULA, Walla Walla, WA | Pass | State |
| 2024-12-11 | PACKAGING CORPORATION OF AMERICA — high-priority violation on file | WALLULA, Walla Walla, WA | Pass | State |
| 2024-12-11 | UNITED WISCONSIN GRAIN PRODUCERS, LLC — high-priority violation on file | FRIESLAND, Columbia, WI | Pass | State |
| 2024-12-11 | DELRIN USA, LLC, DELRIN USA - WASHINGTON WORKS | WASHINGTON, Wood, WV | Pass | State |
| 2024-12-11 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-11 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-11 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-10 | US AIR FORCE (EIELSON) / EIELSON AIR FORCE BASE — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2024-12-10 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2024-12-10 | DCP MIDSTREAM | CODEN, Mobile, AL | Pass | State |
| 2024-12-10 | ALBEMARLE CORPORATION - WEST PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2024-12-10 | DOMTAR A.W. LLC - ASHDOWN MILL — high-priority violation on file | ASHDOWN, Little River, AR | Pass | State |
| 2024-12-10 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-1 | SEARCY, White, AR | Pass | State |
| 2024-12-10 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-1 | SEARCY, White, AR | Pass | State |
| 2024-12-10 | ORANGE COUNTY SANITATION DISTRICT | HUNTINGTON BEACH, Orange, CA | Pass | Local |
| 2024-12-10 | ORANGE COUNTY SANITATION DISTRICT | HUNTINGTON BEACH, Orange, CA | Pass | Local |
| 2024-12-10 | SAN JOAQUIN REFINING CO — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | SAN JOAQUIN REFINING CO — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-10 | DCP OPERATING CO - ROGGEN NGPP — high-priority violation on file | KEENESBURG 4.4 MI. E OF, Weld, CO | Pass | State |
| 2024-12-10 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-10 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-10 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-10 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2024-12-10 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2024-12-10 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2024-12-10 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2024-12-10 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2024-12-10 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2024-12-10 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2024-12-10 | ORLANDO UTILITIES COMMISSION | ORLANDO, Orange, FL | Pass | State |
| 2024-12-10 | STERICYCLE, INC | APOPKA, Orange, FL | Pass | State |
| 2024-12-10 | STERICYCLE, INC | APOPKA, Orange, FL | Pass | State |
| 2024-12-10 | STERICYCLE, INC | APOPKA, Orange, FL | Pass | State |
| 2024-12-10 | STERICYCLE, INC | APOPKA, Orange, FL | Pass | State |
| 2024-12-10 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2024-12-10 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-10 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-10 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-10 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-10 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-10 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-10 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-10 | FLORIDA MUNICIPAL POWER AGENCY | BARTOW, Polk, FL | Pass | State |
| 2024-12-10 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2024-12-10 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2024-12-10 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2024-12-10 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2024-12-10 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2024-12-10 | AG PROCESSING INC-MANNING | MANNING, Carroll, IA | Fail | State |
| 2024-12-10 | BIG RIVER UNITED ENERGY LLC-DYERSVILLE | DYERSVILLE, Dubuque, IA | Pass | State |
| 2024-12-10 | BIG RIVER UNITED ENERGY LLC-DYERSVILLE | DYERSVILLE, Dubuque, IA | Pass | State |
| 2024-12-10 | INTEGRATED DNA TECHNOLOGIES | CORALVILLE, Johnson, IA | Pass | State |
| 2024-12-10 | INTEGRATED DNA TECHNOLOGIES | CORALVILLE, Johnson, IA | Pass | State |
| 2024-12-10 | A-F ACQUISITION LLC DBA PULLMAN INNOVATIONS | CHICAGO, Cook, IL | N/A | U.S. EPA |
| 2024-12-10 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2024-12-10 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2024-12-10 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2024-12-10 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2024-12-10 | SOUTHERN ILLINOIS POWER COOP | MARION, Williamson, IL | Pass | State |
| 2024-12-10 | METAL X AUBURN | AUBURN, DeKalb, IN | Pass | State |
| 2024-12-10 | METAL X AUBURN | AUBURN, DeKalb, IN | Pass | State |
| 2024-12-10 | METAL X AUBURN | AUBURN, DeKalb, IN | Pass | State |
| 2024-12-10 | METAL X AUBURN | AUBURN, DeKalb, IN | Pass | State |
| 2024-12-10 | WAUPACA FOUNDRY INC PLANT 5 — high-priority violation on file | TELL CITY, Perry, IN | Pass | State |
| 2024-12-10 | WAUPACA FOUNDRY INC PLANT 5 — high-priority violation on file | TELL CITY, Perry, IN | Pass | State |
| 2024-12-10 | TENNESSEE VALLEY AUTHORITY (TVA) - SHAWNEE FOSSIL PLANT | WEST PADUCAH, McCracken, KY | Pass | State |
| 2024-12-10 | LOUISVILLE GAS & ELECTRIC COMPANY, MILL CREEK GENERATING STATION | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2024-12-10 | LOUISVILLE GAS & ELECTRIC COMPANY, MILL CREEK GENERATING STATION | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2024-12-10 | KENDALL GREEN ENERGY LLC | CAMBRIDGE, TOWN OF, Middlesex, MA | Pass | State |
| 2024-12-10 | CONSTELLATION WEST MEDWAY LLC | MEDWAY, Norfolk, MA | Pass | State |
| 2024-12-10 | YPSILANTI COMMUNITY UTILITIES AUTHORITY | YPSILANTI, Washtenaw, MI | Pass | State |
| 2024-12-10 | YPSILANTI COMMUNITY UTILITIES AUTHORITY | YPSILANTI, Washtenaw, MI | Pass | State |
| 2024-12-10 | SEBEWAING LIGHT AND WATER DEPARTMENT | SEBEWAING, Huron, MI | Pass | State |
| 2024-12-10 | POET BIOREFINING LAKE CRYSTAL LLC | LAKE CRYSTAL, Blue Earth, MN | Pass | State |
| 2024-12-10 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2024-12-10 | OWENS-CORNING STATELINE | JOPLIN, Jasper, MO | N/A | State |
| 2024-12-10 | COLLINS TREE SERVICE PIT | NEWPORT, Carteret, NC | Pass | State |
| 2024-12-10 | CITY OF HIGH POINT - EASTSIDE WASTEWATER TREATMENT PLANT | JAMESTOWN, Guilford, NC | Pass | State |
| 2024-12-10 | UWHARRIE MOUNTAIN RENEWABLE ENERGY, LLC | MOUNT GILEAD, Montgomery, NC | Pending | State |
| 2024-12-10 | TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC | LIBERTY, Randolph, NC | Pass | State |
| 2024-12-10 | HESS TIOGA GAS PLANT LLC - TIOGA GAS PLANT - AQ | TIOGA, Williams, ND | Pass | State |
| 2024-12-10 | BLOSSOM COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-12-10 | BLOSSOM COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-12-10 | JANIE CONNER FACILITY — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2024-12-10 | BULLDOG COMPRESSOR STATION | LOCO HILLS, 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.