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 |
|---|---|---|---|---|
| 2024-12-05 | MICHAEL K FED TB | LA HUERTA, Eddy, NM | Pass | State |
| 2024-12-05 | EOG - GUNSLINGER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-12-05 | EOG - GUNSLINGER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-12-05 | EOG - GUNSLINGER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-12-05 | MULVA MANHANDS C CTB | JAL, Lea, NM | Pass | State |
| 2024-12-05 | GORGON LGL STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-05 | GORGON LGL STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-05 | GORGON LGL STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-05 | GORGON LGL STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-05 | TITAN COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-05 | CURIA NEW YORK INC | RENSSELAER, Rensselaer, NY | Pass | State |
| 2024-12-05 | CARGILL, INCORPORATED | SIDNEY, Shelby, OH | Pass | State |
| 2024-12-05 | CARGILL, INCORPORATED | SIDNEY, Shelby, OH | Pass | State |
| 2024-12-05 | EOG RESOURCES, INC. - STOCKER HN MON PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2024-12-05 | EOG RESOURCES, INC. - STOCKER HN MON PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2024-12-05 | BCE MACH LLC / BUCKLES 9 25 12 1H | LAMBERT, Alfalfa, OK | Pass | State |
| 2024-12-05 | BCE MACH LLC / GARY 21 27 11 PAD | CHEROKEE, Alfalfa, OK | Pass | State |
| 2024-12-05 | MARKWEST OKLAHOMA GAS CO LLC / WATONGA COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2024-12-05 | FW MIDCON I LLC / MITZI FW 0103 1H 2H 27X | RATLIFF CITY, Garvin, OK | Pass | State |
| 2024-12-05 | CONTINENTAL RESOURCES / AULD 1 10H SCOTT TRUST 1 15H FRIZZELL | LINDSAY, Grady, OK | Pass | State |
| 2024-12-05 | FW MIDCON I LLC / WENDLING 0704 2H 3H 30XX | DIBBLE, McClain, OK | Pass | State |
| 2024-12-05 | GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file | WEST HAZLETON, Luzerne, PA | Pending | State |
| 2024-12-05 | KEYSTONE CONEMAUGH PROJ LLC/KEYSTONE STATION | SHELOCTA, Armstrong, PA | Pass | State |
| 2024-12-05 | KEYSTONE CONEMAUGH PROJ LLC/KEYSTONE STATION | SHELOCTA, Armstrong, PA | Pass | State |
| 2024-12-05 | TEXAS EASTERN TRANS LP/PERULACK STA | EAST WATERFORD, Juniata, PA | Pass | State |
| 2024-12-05 | EQM GATHERING OPCO LLC/WHITES RIDGE DEHY STA | WAYNESBURG, Greene, PA | Pass | State |
| 2024-12-05 | JASPER PELLETS, LLC — high-priority violation on file | JASPER, Marion, TN | Pass | State |
| 2024-12-05 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2024-12-05 | FREDERICK COUNTY REGIONAL LANDFILL | WINCHESTER, Frederick, VA | Pass | State |
| 2024-12-05 | HRSD - BOAT HARBOR WASTEWATER TREATMENT PLANT | NEWPORT NEWS, Newport News (city), VA | Pass | State |
| 2024-12-05 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | PROCTOR, Marshall, WV | Pass | State |
| 2024-12-05 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2024-12-05 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-05 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-05 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-05 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-12-04 | ALASKA ELECTRIC AND ENERGY COOPERATIVE / NIKISKI COMBINED CYCLE PLANT | KENAI, Kenai Peninsula, AK | Pass | State |
| 2024-12-04 | ALASKA ELECTRIC AND ENERGY COOPERATIVE / NIKISKI COMBINED CYCLE PLANT | KENAI, Kenai Peninsula, AK | Pass | State |
| 2024-12-04 | GP CELLULOSE ALABAMA RIVER CELLULOSE LLC | PERDUE HILL, Monroe, AL | Pass | State |
| 2024-12-04 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-12-04 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-12-04 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-12-04 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-12-04 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-12-04 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2024-12-04 | DESOTO GATHERING COMPANY, LLC - SHARKEY CPF-1 | JUDSONIA, White, AR | Pass | State |
| 2024-12-04 | DESOTO GATHERING COMPANY, LLC - MAKO CPF-1 | PANGBURN, White, AR | Pass | State |
| 2024-12-04 | MICROSOFT CORP - OLIVE AVE | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | PACTIV | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-04 | CRESTONE PEAK - MUSTANG BOOSTER STATION — high-priority violation on file | AURORA, Adams, CO | Pass | State |
| 2024-12-04 | CRESTONE PEAK - MUSTANG BOOSTER STATION — high-priority violation on file | AURORA, Adams, CO | Pass | State |
| 2024-12-04 | PALM ENERGY LLC | BRISTOL, Hartford, CT | Pass | State |
| 2024-12-04 | ALGONQUIN GAS TRANSMISSION, LLC - CROMWELL COMPRESSOR STATION | CROMWELL, Middlesex, CT | Pass | State |
| 2024-12-04 | MONTVILLE POWER LLC | CONNECTICUT, Undetermined, CT | Pass | State |
| 2024-12-04 | GROWER DIRECT, INC | SOMERS, Tolland, CT | Pass | State |
| 2024-12-04 | GROWER DIRECT, INC | SOMERS, Tolland, CT | Pass | State |
| 2024-12-04 | CENTER POINT TERMINAL J&W, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-12-04 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2024-12-04 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2024-12-04 | TRANSMONTAIGNE TERMINALS, LLC | PALMETTO, Manatee, FL | Pass | State |
| 2024-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-04 | SEMINOLE ELECTRIC COOPERATIVE, INC. | PALATKA, Putnam, FL | Pass | State |
| 2024-12-04 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-04 | BD GLOBAL DISTRIBUTION CENTER | COVINGTON, Newton, GA | Pass | State |
| 2024-12-04 | CLEARWATER PAPER CORPORATION - AUGUSTA MILL — high-priority violation on file | AUGUSTA, Richmond, GA | Pass | State |
| 2024-12-04 | POET BIOREFINING - ARTHUR, LLC — high-priority violation on file | ARTHUR, Ida, IA | Pass | State |
| 2024-12-04 | LAMB WESTON - AMERICAN FALLS | AMERICAN FALLS, Power, ID | Pass | State |
| 2024-12-04 | ID CASTINGS OF ILLINOIS LLC — high-priority violation on file | MARTINSVILLE, Clark, IL | Pass | State |
| 2024-12-04 | SYENSQO USA LLC | BLUE ISLAND, Cook, IL | Pending | U.S. EPA |
| 2024-12-04 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-12-04 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-12-04 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-12-04 | GARFIELD FACILITY LLC — high-priority violation on file | MUNCIE, Delaware, IN | Pass | State |
| 2024-12-04 | CARMEUSE LIME INCORPORATED — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2024-12-04 | LSC COMMUNICATIONS BOOK LLC — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2024-12-04 | LSC COMMUNICATIONS BOOK LLC — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2024-12-04 | HARDIN CO CONTAINED LANDFILL-AUDUBON TRACE | ELIZABETHTOWN, Hardin, KY | Pass | State |
| 2024-12-04 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2024-12-04 | E INK CORP | SOUTH HADLEY, Hampshire, MA | Pass | State |
| 2024-12-04 | HADLEY AD 1 LLC | HADLEY, Hampshire, MA | Pass | State |
| 2024-12-04 | SILGAN CONTAINER MANUFACTURING CORP. | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2024-12-04 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2024-12-04 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2024-12-04 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.