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.