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 |
|---|---|---|---|---|
| 2024-10-07 | ET GATHERING PROCESSING LLC / MORRIS COMPRESSOR STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-07 | ET GATHERING PROCESSING LLC / MORRIS COMPRESSOR STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-07 | EOG RESOURCES INC / GALAXY CTB PRODUCTION FACILITY | TUTTLE, Grady, OK | Pass | State |
| 2024-10-07 | NATL FUEL GAS SUPPLY/ELLISBURG STA | ELLISBURG, Potter, PA | Pass | State |
| 2024-10-07 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-07 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-07 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-07 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-07 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-10-07 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-06 | EXMOOR 15 CTB 2 | MALAGA, Eddy, NM | Pass | State |
| 2024-10-06 | UNIVERSITY OF NEW MEXICO - HOSPITAL | ALBUQUERQUE, Bernalillo, NM | Pass | Local |
| 2024-10-05 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2024-10-05 | UNIVERSITY OF NEW MEXICO-MAIN CAMPUS | ALBUQUERQUE, Bernalillo, NM | Pass | Local |
| 2024-10-05 | GENERAL MOTORS LLC SPRING HILL MANUFACTURING — high-priority violation on file | SPRING HILL, Maury, TN | Pass | State |
| 2024-10-05 | ROXUL USA INC., RAN FACILITY | RANSON, Jefferson, WV | Pass | State |
| 2024-10-04 | ENABLE GAS TRANSMISSION, LLC (HELENA COMPRESSOR STATION) | HELENA, Phillips, AR | Pass | State |
| 2024-10-04 | ENABLE GAS TRANSMISSION, LLC (HELENA COMPRESSOR STATION) | HELENA, Phillips, AR | Pass | State |
| 2024-10-04 | TREND OFFSET PRINTING SERVICES INC — high-priority violation on file | LOS ALAMITOS, Orange, CA | Pass | Local |
| 2024-10-04 | SIMI VALLEY LANDFILL & RECYCLING CENTER — high-priority violation on file | SIMI VALLEY, Ventura, CA | Pass | Local |
| 2024-10-04 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | DACONO AREA, Weld, CO | Pass | State |
| 2024-10-04 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2024-10-04 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2024-10-04 | MECO - PALAAU | PALAAU, Maui, HI | Pass | State |
| 2024-10-04 | VAN DIEST SUPPLY CO | WEBSTER CITY, Hamilton, IA | Pass | State |
| 2024-10-04 | LOUIS DREYFUS COMPANY AGRICULTURAL PRODUCTS LLC | CLAYPOOL, Kosciusko, IN | Pass | State |
| 2024-10-04 | LOUIS DREYFUS COMPANY AGRICULTURAL PRODUCTS LLC | CLAYPOOL, Kosciusko, IN | Pass | State |
| 2024-10-04 | LOUIS DREYFUS COMPANY AGRICULTURAL PRODUCTS LLC | CLAYPOOL, Kosciusko, IN | Pass | State |
| 2024-10-04 | LOUIS DREYFUS COMPANY AGRICULTURAL PRODUCTS LLC | CLAYPOOL, Kosciusko, IN | Pass | State |
| 2024-10-04 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2024-10-04 | TUMBLEWEED MIDSTREAM - NORTH TRIBUNE BOOSTER STATION (AIR) | TRIBUNE, Greeley, KS | Pass | State |
| 2024-10-04 | MASSPORT LOGAN AIRPORT | BOSTON, CITY OF, Suffolk, MA | Pass | State |
| 2024-10-04 | ECO MAINE | PORTLAND, Cumberland, ME | Pass | State |
| 2024-10-04 | INTERNATIONAL TIE DISPOSAL, LLC - PROJECT TIE — high-priority violation on file | HAMLET, Richmond, NC | Pending | State |
| 2024-10-04 | HEBRON-BRIDGEWATER REGIONAL REFUSE DISTRICT — high-priority violation on file | BRIDGEWATER, Grafton, NH | Fail | State |
| 2024-10-04 | DR. SCRIVNER FACILITY | MALAGA, Eddy, NM | Pass | State |
| 2024-10-04 | DR. SCRIVNER FACILITY | MALAGA, Eddy, NM | Pass | State |
| 2024-10-04 | CASSIUS PAD W | LOVING, Eddy, NM | Pass | State |
| 2024-10-04 | UNIVERSITY OF NEW MEXICO-MAIN CAMPUS | ALBUQUERQUE, Bernalillo, NM | Pass | Local |
| 2024-10-04 | EOG RESOURCES, INC - SPARKMAN GY CEN PAD | CAMBRIDGE, Guernsey, OH | Pass | State |
| 2024-10-04 | EOG RESOURCES, INC - SPARKMAN GY CEN PAD | CAMBRIDGE, Guernsey, OH | Pass | State |
| 2024-10-04 | EOG RESOURCES, INC - SPARKMAN GY CEN PAD | CAMBRIDGE, Guernsey, OH | Pass | State |
| 2024-10-04 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2024-10-04 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2024-10-04 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2024-10-04 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2024-10-04 | MARKWEST OKLAHOMA GAS CO LLC / BUTLER ARAPAHO GAS PLANT — high-priority violation on file | BUTLER, Custer, OK | Pass | State |
| 2024-10-04 | MARKWEST OKLAHOMA GAS CO LLC / BUTLER ARAPAHO GAS PLANT — high-priority violation on file | BUTLER, Custer, OK | Pass | State |
| 2024-10-04 | BCE MACH LLC / LONE RANGER 28 33 S3H S4H BRIAN 27 34 | ALMA, Stephens, OK | Pass | State |
| 2024-10-04 | UGI AUBURN GATHERING LLC/ MANNING COMPRESSOR LNG STA | MESHOPPEN, Wyoming, PA | Pass | State |
| 2024-10-04 | GRANGES AMERICAS INC. — high-priority violation on file | HUNTINGDON, Carroll, TN | Pass | State |
| 2024-10-04 | SIERRA PACIFIC IND.- SKAGIT LUMBER | MOUNT VERNON, Skagit, WA | Pass | Local |
| 2024-10-04 | NORTHWEST PIPELINE GP SUMNER | SUMNER, Pierce, WA | Pass | Local |
| 2024-10-04 | NORTHWEST PIPELINE GP SUMNER | SUMNER, Pierce, WA | Pass | Local |
| 2024-10-04 | JELD-WEN, INC. DBA JELD-WEN, CRAIGSVILLE | CRAIGSVILLE, Nicholas, WV | Fail | State |
| 2024-10-04 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-10-03 | BONANZA POWER PLANT | BONANZA, Uintah, UT | Pass | U.S. EPA |
| 2024-10-03 | COASTAL FOREST PRODUCTS LLC | CHAPMAN, Butler, AL | Pass | State |
| 2024-10-03 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2024-10-03 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2024-10-03 | ARAUCO NORTH AMERICA INCORPORATED | MALVERN, Hot Spring, AR | Pass | State |
| 2024-10-03 | REYNOLDS CONSUMER PRODUCTS LLC | MALVERN, Hot Spring, AR | Pass | State |
| 2024-10-03 | ENABLE MISSISSIPPI RIVER TRANSMISSION, LLC - CARLISLE COMPRESSOR STATION | CARLISLE, Lonoke, AR | Pass | State |
| 2024-10-03 | ENABLE MISSISSIPPI RIVER TRANSMISSION, LLC - CARLISLE COMPRESSOR STATION | CARLISLE, Lonoke, AR | Pass | State |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-03 | AURORA CONV CENT- GAYLORD ROCKIES RESORT | AURORA, Adams, CO | Fail | State |
| 2024-10-03 | AURORA CONV CENT- GAYLORD ROCKIES RESORT | AURORA, Adams, CO | Fail | State |
| 2024-10-03 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2024-10-03 | PETRO OPERATING - HOMESTEAD 01N-66W-34 | BRIGHTON, Weld, CO | Pass | State |
| 2024-10-03 | PETRO OPERATING - HOMESTEAD 01N-66W-34 | BRIGHTON, Weld, CO | Pass | State |
| 2024-10-03 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-10-03 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-10-03 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-10-03 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-10-03 | FLORIDA GAS TRANSMISSION COMPANY, LLC | BROOKER, Bradford, FL | Pass | State |
| 2024-10-03 | FLORIDA GAS TRANSMISSION COMPANY, LLC | BROOKER, Bradford, FL | Pass | State |
| 2024-10-03 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2024-10-03 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2024-10-03 | MCK TERMINALS, LLC — high-priority violation on file | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-10-03 | CITY OF JACKSONVILLE | BALDWIN, Duval, FL | Pass | State |
| 2024-10-03 | CITY OF JACKSONVILLE | BALDWIN, Duval, FL | Pass | State |
| 2024-10-03 | RIVER CITY PAVING | DUBUQUE, Dubuque, IA | Pass | State |
| 2024-10-03 | CARMEUSE LIME INCORPORATED — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2024-10-03 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2024-10-03 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.