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 |
|---|---|---|---|---|
| 2024-10-14 | TARGA PIPELINE MIDCONTINENT LLC / MATHEWS COMPRESSOR STATION | WILSON, Carter, OK | Pass | State |
| 2024-10-14 | CONTINENTAL RESOURCES / WILEY 1 27 28XH | HENNEPIN, Garvin, OK | Pass | State |
| 2024-10-14 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2024-10-14 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2024-10-14 | CONTINENTAL RESOURCES / JEANNA 5 24H JEANNA 6 24H | BAILEY, Grady, OK | Pass | State |
| 2024-10-14 | CHISHOLM OIL AND GAS OPERATING LLC / MYERS 18 3 6 1H | LOVELL, Logan, OK | Pass | State |
| 2024-10-14 | XTO ENERGY INC / CALICO JACK 3 4 17H JOLLY ROGER 2 8H | MADILL, Marshall, OK | Pass | State |
| 2024-10-14 | XTO ENERGY INC / ANDROMEDA 1 32H PRODUCTION SITE | CUMBERLAND, Marshall, OK | Pass | State |
| 2024-10-14 | UGI GIBRALTAR GATHERING LLC/GIBRALTAR COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2024-10-14 | BLYTHE ORANGEBURG PLANT - BLYTHE CONSTRUCTION INC | ORANGEBURG, Orangeburg, SC | Pass | State |
| 2024-10-14 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-14 | BAYPORT POLYMERS | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-14 | COLUMBIA GAS TRANSMISSION CORPORATION GALA COMPRES | EAGLE ROCK, Botetourt, VA | Pass | State |
| 2024-10-14 | WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file | OAK CREEK, Monroe, WI | Pass | State |
| 2024-10-14 | WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file | OAK CREEK, Monroe, WI | Pass | State |
| 2024-10-13 | TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file | KOTZEBUE, Northwest Arctic, AK | Pass | State |
| 2024-10-13 | TECK ALASKA, INC. (TECK) / RED DOG MINE — high-priority violation on file | KOTZEBUE, Northwest Arctic, AK | Pass | State |
| 2024-10-13 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2024-10-12 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2024-10-11 | ARDENT MILLS FORMALLY CONAGRA | DECATUR, Morgan, AL | Pass | State |
| 2024-10-11 | GEORGIA-PACIFIC CROSSETT LLC | CROSSETT, Ashley, AR | Pass | State |
| 2024-10-11 | GEORGIA-PACIFIC CROSSETT LLC | CROSSETT, Ashley, AR | Pass | State |
| 2024-10-11 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2024-10-11 | BREA PARENT 2007, LLC | BREA, Orange, CA | Pass | Local |
| 2024-10-11 | BREA PARENT 2007, LLC | BREA, Orange, CA | Fail | Local |
| 2024-10-11 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-11 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-11 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-11 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-11 | SIKORSKY AIRCRAFT - MAIN PLANT | STRATFORD, Fairfield, CT | Pass | State |
| 2024-10-11 | ARMSTRONG WORLD INDUSTRIES, INC. | PENSACOLA, Escambia, FL | Pass | State |
| 2024-10-11 | ARMSTRONG WORLD INDUSTRIES, INC. | PENSACOLA, Escambia, FL | Pass | State |
| 2024-10-11 | POET BIOREFINING - LIBERTY (EMMETSBURG) — high-priority violation on file | EMMETSBURG, Palo Alto, IA | Pass | State |
| 2024-10-11 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-11 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-11 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-11 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-11 | GREEN PLAINS FAIRMONT LLC | FAIRMONT, Martin, MN | Pass | State |
| 2024-10-11 | THE LIFELINE GROUP — high-priority violation on file | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2024-10-11 | THE LIFELINE GROUP — high-priority violation on file | SAINT JOSEPH, Buchanan, MO | Fail | State |
| 2024-10-11 | THE LIFELINE GROUP — high-priority violation on file | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2024-10-11 | THE LIFELINE GROUP — high-priority violation on file | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2024-10-11 | THE LIFELINE GROUP — high-priority violation on file | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2024-10-11 | MONDI JACKSON LLC-INDIAN CREEK | JACKSON, Cape Girardeau, MO | N/A | State |
| 2024-10-11 | MONDI JACKSON LLC-INDIAN CREEK | JACKSON, Cape Girardeau, MO | N/A | State |
| 2024-10-11 | AMCOR PACKAGING, INC. | JOPLIN, Jasper, MO | Pass | State |
| 2024-10-11 | AMCOR PACKAGING, INC. | JOPLIN, Jasper, MO | Pass | State |
| 2024-10-11 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2024-10-11 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2024-10-11 | MIYAMURA COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-10-11 | EOG - RED HILLS SOLAR LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-10-11 | EOG - RED HILLS SOLAR LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-10-11 | JSW STEEL USA OHIO — high-priority violation on file | MINGO JUNCTION, Jefferson, OH | Pass | State |
| 2024-10-11 | EOG RESOURCES, INC. - SPROUL 20-13-7 PAD | UHRICHSVILLE, Tuscarawas, OH | Pass | State |
| 2024-10-11 | EOG RESOURCES, INC. - SPROUL 20-13-7 PAD | UHRICHSVILLE, Tuscarawas, OH | Pass | State |
| 2024-10-11 | EOG RESOURCES, INC. - SPROUL 20-13-7 PAD | UHRICHSVILLE, Tuscarawas, OH | Pass | State |
| 2024-10-11 | MARKWEST OKLAHOMA GAS CO LLC / SPRAGUE COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2024-10-11 | CONTINENTAL RESOURCES / WILLIAMS 2 25 24 13XHW WILLIAMS 3 25 2 | TABLER, Grady, OK | Pass | State |
| 2024-10-11 | LAB ENERGY LLC/DUNCANNON | DUNCANNON, Perry, PA | Pass | State |
| 2024-10-11 | ROGERS GROUP INC - GRAY COURT ASPHALT PLANT #2 | GRAY COURT, Laurens, SC | Pass | State |
| 2024-10-11 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-11 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-11 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-10-11 | HOPEWELL POWER GENERATION LLC | HOPEWELL, Hopewell (city), VA | Pass | State |
| 2024-10-11 | DIGITAL THIRD SECOND MANASSAS, LLC & DIGITAL CARVER BRICKYARD, LLC. — high-priority violation on file | MANASSAS, Manassas (city), VA | Pass | State |
| 2024-10-11 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-11 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-11 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-10 | MITSUBISHI CHEMICAL CARBON FIBER AND COMPOSITES — high-priority violation on file | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY - KERN MIDWAY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.