EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-12-07 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-12-07 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-12-07 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-12-07 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-12-07 | RECAST ENERGY LOUISVILLE, LLC | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2023-12-07 | SABINE PASS LNG LP AND SABINE PASS LIQUEFACTION LLC - SABINE PASS LNG TERMINAL | CAMERON, Cameron, LA | Pass | State |
| 2023-12-07 | NORTHERN NATURAL GAS CO - OWATONNA COMPRESSOR STATION | ELLENDALE, Steele, MN | Pass | State |
| 2023-12-07 | VISION RNG | BOWLING GREEN, Pike, MO | Pass | State |
| 2023-12-07 | VISION RNG | BOWLING GREEN, Pike, MO | Pass | State |
| 2023-12-07 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-12-07 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-12-07 | DAVIDSON GAS PRODUCERS, LLC - DAVIDSON CO. LANDFILL | LEXINGTON, Davidson, NC | Pass | State |
| 2023-12-07 | CAROLINA STALITE COMPANY | GOLD HILL, Rowan, NC | Pass | State |
| 2023-12-07 | WHOMPING WILLOW CTB AND COMPRESSOR BOOSTER STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-12-07 | MEMORIAL SLOAN KETTERING CANCER CENTER | NEW YORK, New York, NY | Pass | State |
| 2023-12-07 | COLGATE UNIVERSITY | HAMILTON, Madison, NY | Pass | State |
| 2023-12-07 | WIN WASTE INNOVATIONS OF SENECA COUNTY | FOSTORIA, Seneca, OH | Pass | State |
| 2023-12-07 | MARKWEST TRI-COUNTY COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-12-07 | MARKWEST TRI-COUNTY COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-12-07 | MARKWEST TRI-COUNTY COMPRESSOR STATION | BARNESVILLE, Belmont, OH | Pass | State |
| 2023-12-07 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-12-07 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-12-07 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-12-07 | ASCENT RESOURCES - UTICA LLC - EMERSYN RCH BL WELL PAD | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-12-07 | ASCENT RESOURCES - UTICA LLC - EMERSYN RCH BL WELL PAD | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-12-07 | ASCENT RESOURCES - UTICA LLC - EMERSYN RCH BL WELL PAD | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-12-07 | ET GATHERING PROCESSING LLC / UDORA COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2023-12-07 | ET GATHERING PROCESSING LLC / UDORA COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2023-12-07 | TARGA PIPELINE MIDCONTINENT LLC / GRAHAM COMPRESSOR STATION | GRAHAM, Carter, OK | Pass | State |
| 2023-12-07 | TARGA PIPELINE MIDCONTINENT LLC / MATHEWS COMPRESSOR STATION | WILSON, Carter, OK | Pass | State |
| 2023-12-07 | CONTINENTAL RESOURCES / PLAINVIEW 2 30 19XHW | ALEX, Grady, OK | Pass | State |
| 2023-12-07 | MARKWEST OKLAHOMA GAS CO LLC / STUART SOUTH COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2023-12-07 | CHISHOLM OIL AND GAS OPERATING LLC / THAMIN 19 08 36 1H | HENNESSEY, Kingfisher, OK | Pass | State |
| 2023-12-07 | FW MIDCON I LLC / HARMON 1H 31XR | DIBBLE, McClain, OK | Pass | State |
| 2023-12-07 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2023-12-07 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2023-12-07 | BCE MACH II LLC / CHARGING HAWK 1H 4 OIL AND GAS PRODUCT | SWEETWATER, Roger Mills, OK | Pass | State |
| 2023-12-07 | BCE MACH III LLC / ROWLAN 2 4 4 4 | CANUTE, Washita, OK | Pass | State |
| 2023-12-07 | ET GATHERING PROCESSING LLC / REDHORSE COMPRESSOR STATION | ALVA, Woods, OK | Pass | State |
| 2023-12-07 | ET GATHERING PROCESSING LLC / AVARD COMPRESSOR STATION | AVARD, Woods, OK | Pass | State |
| 2023-12-07 | GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file | WEST HAZLETON, Luzerne, PA | Fail | State |
| 2023-12-07 | GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file | WEST HAZLETON, Luzerne, PA | Pending | State |
| 2023-12-07 | EXPAND OPER LLC/GU-N HEBDA VANDEMARK PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2023-12-07 | NFG MIDSTREAM COVINGTON LLC/GEE 848 WELL PAD | MIDDLEBURY CENTER, Tioga, PA | Pass | State |
| 2023-12-07 | CROWN BEVERAGE PACKAGING | CHERAW, Chesterfield, SC | Pass | State |
| 2023-12-07 | CHINA JUSHI USA CORPORATION — high-priority violation on file | COLUMBIA, Richland, SC | Pass | State |
| 2023-12-07 | BI-COUNTY GAS PRODUCERS, LLC | WOODLAWN, Montgomery, TN | Pass | State |
| 2023-12-07 | HILL AIR FORCE BASE | CLEARFIELD, Davis, UT | Pass | State |
| 2023-12-07 | DOMINION ENERGY - VIRGINIA CITY HYBRID ENERGY CENTER | ST PAUL, Wise, VA | Pass | State |
| 2023-12-07 | WESTROCK VIRGINIA LLC - COVINGTON | COVINGTON, Covington (city), VA | Pass | State |
| 2023-12-07 | TRANSALTA CENTRALIA GENERATION, LLC — high-priority violation on file | CENTRALIA, Lewis, WA | Pass | Local |
| 2023-12-07 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2023-12-07 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2023-12-06 | HUNT REFINING COMPANY | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2023-12-06 | DESOTO GATHEIRNG COMPANY, LLC - GRAVEL HILL CPF-2 | CLEVELAND (HISTORICAL), TOWNSHIP OF, Van Buren, AR | Pass | State |
| 2023-12-06 | INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2023-12-06 | LA CITY DWP- VALLEY GENERATING STN | SUN VALLEY, Los Angeles, CA | Pass | Local |
| 2023-12-06 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-06 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-06 | AIR PRODUCTS AND CHEMICALS INC | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-12-06 | WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file | RIO BLANCO 18 MILES W OF, Rio Blanco, CO | Pass | State |
| 2023-12-06 | WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file | RIO BLANCO 18 MILES W OF, Rio Blanco, CO | Pass | State |
| 2023-12-06 | WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file | RIO BLANCO 18 MILES W OF, Rio Blanco, CO | Pass | State |
| 2023-12-06 | CITY OF WATERBURY WPCF | WATERBURY, New Haven, CT | Pass | State |
| 2023-12-06 | TPSI TERMINALS LLC | FORT LAUDERDALE, Broward, FL | Pass | State |
| 2023-12-06 | WASTE MANAGEMENT INC. OF FLORIDA | POMPANO BEACH, Broward, FL | Pass | State |
| 2023-12-06 | JOHNSON & JOHNSON VISION CARE, INC. | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-12-06 | LIGNOTECH FLORIDA LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.