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 |
|---|---|---|---|---|
| 2024-11-25 | BCE MACH LLC / MCEVOY 1 2 35XH | CHICKASHA, Grady, OK | Pass | State |
| 2024-11-25 | ET GATHERING PROCESSING LLC / TURKEY TOWER COMPRESSOR FACILITY | ALEX, Grady, OK | Pass | State |
| 2024-11-25 | ET GATHERING PROCESSING LLC / TURKEY TOWER COMPRESSOR FACILITY | ALEX, Grady, OK | Pass | State |
| 2024-11-25 | MAGELLAN PIPELINE CO LP / PONCA CITY STATION — high-priority violation on file | PONCA CITY, Kay, OK | Pass | State |
| 2024-11-25 | TERRITORY RESOURCES LLC / VERNA 1 24 | MOUNTAIN VIEW, Kiowa, OK | Pass | State |
| 2024-11-25 | XTO ENERGY INC / CONNIE SUE 1 23H26 CHARLES 1 23H PROD | MARIETTA, Love, OK | Pass | State |
| 2024-11-25 | XTO ENERGY INC / PEGGY 1 6H5X8 PRODUCTION SITE | MARIETTA, Love, OK | Pass | State |
| 2024-11-25 | DCP OPERATING CO LP / THUNDER COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2024-11-25 | DCP OPERATING CO LP / THUNDER COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2024-11-25 | LPR ENERGY LLC/HENRY CLAY MIDSTREAM FAC | MARKLEYSBURG, Fayette, PA | Pass | State |
| 2024-11-25 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2024-11-25 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-11-25 | FRANZ SEATTLE DIVISION - WELLER ST. | SEATTLE, King, WA | Pass | Local |
| 2024-11-25 | PUGET SOUND ENERGY (WA NATURAL GAS) | CHEHALIS, Lewis, WA | Pass | Local |
| 2024-11-25 | AHLSTROM NA SPECIALTY SOLUTIONS LLC — high-priority violation on file | KAUKAUNA, Ozaukee, WI | Pass | State |
| 2024-11-25 | VIRGINIA ELECTRIC AND POWER COMPANY, MT. STORM | MT. STORM, Grant, WV | Pass | State |
| 2024-11-25 | ANTERO MIDSTREAM LLC, CASTLE PEAK STN | NEW MARTINSVILLE, Tyler, WV | Pass | State |
| 2024-11-24 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2024-11-23 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2024-11-23 | PROCLAMATION LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-11-23 | EOG - VIPER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-11-22 | ALTERNATIVE WASTE MANAGEMENT LLC | MAYFLOWER, Faulkner, AR | Pass | State |
| 2024-11-22 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-22 | SUNOPTA ASEPTIC — high-priority violation on file | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-11-22 | SUNOPTA ASEPTIC — high-priority violation on file | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-11-22 | SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file | COMMERCE CITY, Adams, CO | Pass | State |
| 2024-11-22 | GALLAUDET UNIVERSITY — high-priority violation on file | WASHINGTON, District of Columbia, DC | Fail | State |
| 2024-11-22 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-22 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-22 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-22 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-22 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-22 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-22 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-22 | P KAY METAL LEWISTON LLC | LEWISTON, Nez Perce, ID | Fail | State |
| 2024-11-22 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2024-11-22 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2024-11-22 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2024-11-22 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2024-11-22 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2024-11-22 | SUGAR CREEK PACKING CO | CAMBRIDGE CITY, Wayne, IN | Pass | State |
| 2024-11-22 | HARSHMAN CONST. - HOWARD QUARRY (AIR) | HOWARD, Elk, KS | Pass | State |
| 2024-11-22 | HARSHMAN CONST (MASTER EQUIP LIST) (AIR) | CEDAR POINT, Marion, KS | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | SOUTHWEST CLEAN WATER PLANT SPRINGFIELD | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-11-22 | RICHARD ABERNATHY GRADING AND SEPTIC, INC. - MT. ULLA SITE | MOORESVILLE, Iredell, NC | Fail | State |
| 2024-11-22 | EOG - JAFAR COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-22 | EOG - ODIN COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-22 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-22 | EOG RESOURCES, INC. - GROVE CL KNX PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2024-11-22 | EOG RESOURCES, INC. - GROVE CL KNX PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2024-11-22 | EOG RESOURCES, INC. - GROVE CL KNX PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2024-11-22 | ASCENT RESOURCES - UTICA LLC - ROCK RIDGE WRN BL | BARNESVILLE, Belmont, OH | Pass | State |
| 2024-11-22 | ASCENT RESOURCES - UTICA LLC - ROCK RIDGE WRN BL | BARNESVILLE, Belmont, OH | Pass | State |
| 2024-11-22 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2024-11-22 | VALIDUS ENERGY II MIDCON LLC / SNYDER 8 18 1409MH 9 19 18 1409MHX 10 | WATONGA, Canadian, OK | Pass | State |
| 2024-11-22 | MARKWEST OKLAHOMA GAS CO LLC / WOMACK COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2024-11-22 | BCE MACH LLC / ROADRUNNER 6 7 16N 7W 2MH 3MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2024-11-22 | FW MIDCON I LLC / LULA 1709 2H 3H 16X GILL 1709 2H 3H 4X | LOYAL, Kingfisher, OK | Pass | State |
| 2024-11-22 | LUCK STONE - ENOREE DEVELOPMENT SITE | ENOREE, Spartanburg, SC | Pass | State |
| 2024-11-22 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2024-11-22 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-11-22 | MCA BEAUMONT SITE | NEDERLAND, Jefferson, TX | Pass | State |
| 2024-11-22 | BASF TOTAL FINA NAFTA REGION OLEFINS COMPLEX — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-11-22 | WEATHERFORD PLANT | WEATHERFORD, Parker, TX | Pass | State |
| 2024-11-22 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | N/A | State |
| 2024-11-22 | AIR LIQUIDE AMERICA LP | ANACORTES, Skagit, WA | Pass | Local |
| 2024-11-21 | CEMEX SOUTHEAST LLC | DEMOPOLIS, Marengo, AL | Pass | State |
| 2024-11-21 | DRUMMOND COMPANY, INC. (ABC COKE) | BIRMINGHAM, Jefferson, AL | Pass | Local |
| 2024-11-21 | DESOTO GATHERING COMPANY, LLC - S. BROWNIE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2024-11-21 | ANTHONY TIMBERLANDS, INC. - MALVERN | MALVERN, Hot Spring, AR | Pass | State |
| 2024-11-21 | ROYAL OAK ENTERPRISES, LLC - OXLEY | LESLIE, Searcy, AR | Pass | State |
| 2024-11-21 | ROYAL OAK ENTERPRISES, LLC - OXLEY | LESLIE, Searcy, AR | Pass | State |
| 2024-11-21 | DESOTO GATHERING COMPANY, LLC.-OLIVER CPF-1 | SEARCY, White, AR | Pass | State |
| 2024-11-21 | NOVO BIOPOWER, LLC | SNOWFLAKE, Navajo, AZ | Pass | State |
| 2024-11-21 | BAGDAD MINE | BAGDAD, Yavapai, AZ | Pass | State |
| 2024-11-21 | SDG&E (FRMLY PALOMAR ENERGY) | ESCONDIDO, San Diego, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-21 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2024-11-21 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2024-11-21 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2024-11-21 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2024-11-21 | SAN LUIS VALLEY REGIONAL SOLID WASTE AUT | MONTE VISTA 3.7 MI. W OF, Rio Grande, CO | 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.