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 |
|---|---|---|---|---|
| 2024-12-31 | ALABAMA POWER COMPANY | WILSONVILLE, Shelby, AL | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-31 | UNIVERSITY OF IOWA | IOWA CITY, Johnson, IA | Pass | State |
| 2024-12-31 | GARFIELD FACILITY LLC — high-priority violation on file | MUNCIE, Delaware, IN | Pass | State |
| 2024-12-31 | WARRICK NEWCO LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Fail | State |
| 2024-12-31 | WARRICK NEWCO LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Fail | State |
| 2024-12-31 | VALERO REFINING - NEW ORLEANS LLC - ST CHARLES REFINERY | NORCO, St. Charles, LA | Pass | State |
| 2024-12-31 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2024-12-31 | CIE NORFOLK GNS LLC — high-priority violation on file | NORFOLK, Madison, NE | Pass | State |
| 2024-12-31 | DEEP FLAT BOOSTER STATION | AVALON, Eddy, NM | Pass | State |
| 2024-12-31 | LOAN ASSET ISSUER LLC/WEST FINLEY 10 WELL PAD | WEST FINLEY, Washington, PA | Pass | State |
| 2024-12-31 | ANTERO MIDSTREAM LLC, ZINNIA STATION | SALEM, Harrison, WV | Pass | State |
| 2024-12-30 | BFI - WASTE SYSTEM OF ARKANSAS, LLC | BAUXITE, Saline, AR | Pass | State |
| 2024-12-30 | KRAFT HEINZ FOODS COMPANY | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-12-30 | HC&D - PUUNENE | PUUNENE, Maui, HI | Pass | State |
| 2024-12-30 | WEST HAWAII CONCRETE - WAIMEA | UNKNOWN, Undetermined, HI | Pass | State |
| 2024-12-30 | UNIVERSITY OF IOWA | IOWA CITY, Johnson, IA | Pass | State |
| 2024-12-30 | GULF SOUTH PIPELINE COMPANY LLC, BLACK CREEK COMPRESSOR STATION | PURVIS, Forrest, MS | Pass | State |
| 2024-12-30 | GULF SOUTH PIPELINE COMPANY LLC, BLACK CREEK COMPRESSOR STATION | PURVIS, Forrest, MS | Pass | State |
| 2024-12-30 | GULF SOUTH PIPELINE COMPANY LLC, BLACK CREEK COMPRESSOR STATION | PURVIS, Forrest, MS | Pass | State |
| 2024-12-30 | GULF SOUTH PIPELINE COMPANY LLC, BLACK CREEK COMPRESSOR STATION | PURVIS, Forrest, MS | Pass | State |
| 2024-12-30 | GULF SOUTH PIPELINE COMPANY LLC, BLACK CREEK COMPRESSOR STATION | PURVIS, Forrest, MS | Pass | State |
| 2024-12-30 | GULF SOUTH PIPELINE COMPANY LLC, BLACK CREEK COMPRESSOR STATION | PURVIS, Forrest, MS | Pass | State |
| 2024-12-30 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2024-12-30 | DEEP FLAT BOOSTER STATION | AVALON, Eddy, NM | Pass | State |
| 2024-12-30 | DEEP FLAT BOOSTER STATION | AVALON, Eddy, NM | Pass | State |
| 2024-12-30 | LOAN ASSET ISSUER LLC/WEST FINLEY 1 WELL PAD | WEST FINLEY, Washington, PA | Pass | State |
| 2024-12-29 | CRIMSON RESOURCE MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-27 | ST GOBAIN ABRASIVES, INC | WORCESTER, CITY OF, Worcester, MA | Pass | State |
| 2024-12-27 | OCCIDENTAL CHEMICAL CORPORATION | LUDINGTON, Mason, MI | Pass | State |
| 2024-12-27 | DAVE GATES GENERATING STATION AT MILL CREEK | ANACONDA, Deer Lodge, MT | Pass | State |
| 2024-12-27 | DAVE GATES GENERATING STATION AT MILL CREEK | ANACONDA, Deer Lodge, MT | Pass | State |
| 2024-12-27 | DAVE GATES GENERATING STATION AT MILL CREEK | ANACONDA, Deer Lodge, MT | Pass | State |
| 2024-12-27 | DAVE GATES GENERATING STATION AT MILL CREEK | ANACONDA, Deer Lodge, MT | Pass | State |
| 2024-12-27 | DAVE GATES GENERATING STATION AT MILL CREEK | ANACONDA, Deer Lodge, MT | Pass | State |
| 2024-12-27 | DAVE GATES GENERATING STATION AT MILL CREEK | ANACONDA, Deer Lodge, MT | Pass | State |
| 2024-12-27 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-27 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-27 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-27 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-27 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-27 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-27 | GOLDEN SPUR 36 WF1 | MALAGA, Eddy, NM | Pass | State |
| 2024-12-27 | ROCCO COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-27 | ROCCO COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-27 | LARIAT COMPRESSOR STATION — high-priority violation on file | MALJAMAR, Lea, NM | Pass | State |
| 2024-12-27 | GATO GRANDE 16 CTB 1 | MALAGA, Lea, NM | Pass | State |
| 2024-12-27 | VALIDUS ENERGY II MIDCON LLC / HAWORTH 1H 25 36 | CARMEN, Woods, OK | Pass | State |
| 2024-12-26 | SO CAL GAS CO | NORTHRIDGE, Los Angeles, CA | Pass | Local |
| 2024-12-26 | OCCIDENTAL CHEMICAL CORPORATION | LUDINGTON, Mason, MI | Pass | State |
| 2024-12-26 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | MONROE, Monroe, MI | Pass | State |
| 2024-12-26 | KAO SPECIALTIES AMERICAS, LLC | HIGH POINT, Guilford, NC | Pass | State |
| 2024-12-26 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Incomplete | State |
| 2024-12-26 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-26 | BITTER LAKE COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2024-12-26 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2024-12-26 | ROCCO COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-26 | GATO GRANDE 16 CTB 1 | MALAGA, Lea, NM | Pass | State |
| 2024-12-26 | GATO GRANDE 16 CTB 1 | MALAGA, Lea, NM | Pass | State |
| 2024-12-26 | GULFPORT MIDCON LLC / ANGELA SOUTH A PAD | ALEX, Grady, OK | Pass | State |
| 2024-12-24 | UNITED STATES BAKERY | PORTLAND, Multnomah, OR | Pass | State |
| 2024-12-23 | DEMENNO-KERDOON DBA WORLD OIL RECYCLING | COMPTON, Los Angeles, CA | Pass | Local |
| 2024-12-23 | WESTLAKE ROYAL ROOFING LLC | CORONA, Riverside, CA | Pass | Local |
| 2024-12-23 | 40 LCID, LLC (ACI) | STATESVILLE, Iredell, NC | Pass | State |
| 2024-12-23 | PILKINGTON NORTH AMERICA, INC. — high-priority violation on file | LAURINBURG, Scotland, NC | Pending | State |
| 2024-12-23 | OPPD NEBRASKA CITY STATION | NEBRASKA CITY, Otoe, NE | Pass | State |
| 2024-12-23 | MERRIMACK STATION | BOW, Merrimack, NH | Pass | State |
| 2024-12-23 | WALKER COMPRESSOR STATION | LOVING, Eddy, NM | Incomplete | State |
| 2024-12-23 | WALKER COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-12-23 | SCHLITZ CTB — high-priority violation on file | WHITES CITY, Eddy, NM | Pass | State |
| 2024-12-23 | EOG RESOURCES, INC. - DAVID WEAVER HN STO PAD | SCIO, Harrison, OH | Pass | State |
| 2024-12-23 | EOG RESOURCES, INC. - DAVID WEAVER HN STO PAD | SCIO, Harrison, OH | Pass | State |
| 2024-12-23 | EOG RESOURCES, INC. - DAVID WEAVER HN STO PAD | SCIO, Harrison, OH | Pass | State |
| 2024-12-23 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2024-12-23 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2024-12-23 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2024-12-23 | LOAN ASSET ISSUER LLC/WEST FINLEY 6 WELL PAD | WEST FINLEY, Washington, PA | Pass | State |
| 2024-12-23 | LOAN ASSET ISSUER LLC/WEST FINLEY 5 WELL PAD | WEST FINLEY, Washington, PA | Pass | State |
| 2024-12-23 | EXPAND OPERATING LLC/DEER PARK PAD COMP STA | MEHOOPANY, Wyoming, PA | Pass | State |
| 2024-12-23 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | N/A | State |
| 2024-12-23 | LINHART CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2024-12-22 | YELLOWSTONE COUNTY GENERATING STATION | LAUREL, Yellowstone, MT | Pass | State |
| 2024-12-21 | DEMENNO-KERDOON DBA WORLD OIL RECYCLING | COMPTON, Los Angeles, CA | Pass | Local |
| 2024-12-21 | TESORO LOGISTICS OPERATIONS-LONG BEACH | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2024-12-21 | CERTAINTEED GYPSUM PALATKA, LLC | PALATKA, Putnam, FL | Pass | State |
| 2024-12-21 | CERTAINTEED GYPSUM PALATKA, LLC | PALATKA, Putnam, FL | Pass | State |
| 2024-12-21 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2024-12-20 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2024-12-20 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2024-12-20 | LSB CHEMICAL LLC | EL DORADO, Union, AR | Pass | State |
| 2024-12-20 | LSB CHEMICAL LLC | EL DORADO, Union, AR | Pass | State |
| 2024-12-20 | LSB CHEMICAL LLC | EL DORADO, Union, AR | Pass | State |
| 2024-12-20 | LSB CHEMICAL LLC | EL DORADO, Union, AR | Pass | State |
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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.