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 |
|---|---|---|---|---|
| 2023-10-18 | ANR PIPELINE COMPANY ST JOHN COMPRESSOR STATION | SAINT JOHN, Lake, IN | Pass | State |
| 2023-10-18 | ANR PIPELINE COMPANY ST JOHN COMPRESSOR STATION | SAINT JOHN, Lake, IN | Pass | State |
| 2023-10-18 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2023-10-18 | EVONIK CORPORATION TIPPECANOE LABORATORIES — high-priority violation on file | LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2023-10-18 | EBERT CONST (PORTABLE)(AIR) | WAMEGO, Pottawatomie, KS | Pass | State |
| 2023-10-18 | THE DOW CHEMICAL COMPANY U.S.A., MIDLAND — high-priority violation on file | MIDLAND, Midland, MI | Pending | State |
| 2023-10-18 | ARBOR HILLS LANDFILL, INC. — high-priority violation on file | NORTHVILLE, Washtenaw, MI | Pass | State |
| 2023-10-18 | GULF SOUTH PIPELINE COMPANY LLC, PETAL COMPRESSOR STATION | PETAL, Forrest, MS | Pass | State |
| 2023-10-18 | GULF SOUTH PIPELINE COMPANY LLC, PETAL COMPRESSOR STATION | PETAL, Forrest, MS | Pass | State |
| 2023-10-18 | GULF SOUTH PIPELINE COMPANY LLC, PETAL COMPRESSOR STATION | PETAL, Forrest, MS | Pass | State |
| 2023-10-18 | GULF SOUTH PIPELINE COMPANY LLC, PETAL COMPRESSOR STATION | PETAL, Forrest, MS | Pass | State |
| 2023-10-18 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Pass | State |
| 2023-10-18 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Fail | State |
| 2023-10-18 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Pass | State |
| 2023-10-18 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Pass | State |
| 2023-10-18 | WILLISTON BASIN - HATHAWAY STATION | HATHAWAY, Rosebud, MT | Pass | State |
| 2023-10-18 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2023-10-18 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2023-10-18 | BLUE QUAIL COMPRESSOR STATION | LOCO HILLS, Eddy, NM | Pass | State |
| 2023-10-18 | NORTH PEN COMPRESSOR STATION | ARTESIA, Eddy, NM | Pass | State |
| 2023-10-18 | NORTH PEN COMPRESSOR STATION | ARTESIA, Eddy, NM | Pass | State |
| 2023-10-18 | NORTH PEN COMPRESSOR STATION | ARTESIA, Eddy, NM | Pass | State |
| 2023-10-18 | SECTION 9 COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-18 | SECTION 9 COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-18 | SECTION 9 COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-18 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-18 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-18 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-18 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-18 | ENERGY TRANSFER COMPANY - DOMINATOR COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-10-18 | PONY EXPRESS FED EAST TB | MALJAMAR, Lea, NM | Pass | State |
| 2023-10-18 | N SHORE TOWERS APT TOTAL ENERGY PLANT | FLORAL PARK, Queens, NY | Pass | State |
| 2023-10-18 | ENERGY TRANSFER MARKETING & TERMINALS L.P-COLUMBUS EAST | COLUMBUS, Franklin, OH | Pass | State |
| 2023-10-18 | MATALCO USA LLC | LORDSTOWN, Trumbull, OH | Pass | State |
| 2023-10-18 | ASCENT RESOURCES- UTICA, LLC - PAVICH | WAYNE, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-10-18 | ASCENT RESOURCES- UTICA, LLC - PAVICH | WAYNE, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-10-18 | ASCENT RESOURCES- UTICA, LLC - PAVICH | WAYNE, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-10-18 | NLS ASPHALT, INC. - PLANT #5 — high-priority violation on file | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-10-18 | NLS ASPHALT, INC. - PLANT #5 — high-priority violation on file | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-10-18 | NOVELIS ALR RECYCLING OF OHIO LLC — high-priority violation on file | UHRICHSVILLE, Tuscarawas, OH | Pass | State |
| 2023-10-18 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2023-10-18 | BCE MACH LLC / STATE 33 26 11 1H STA | LAMBERT, Alfalfa, OK | Pass | State |
| 2023-10-18 | BCE MACH LLC / PATTON TRUST 34 26 11 1H STA | CHEROKEE, Alfalfa, OK | Pass | State |
| 2023-10-18 | VALIDUS ENERGY II MIDCON LLC / BALUCHI WEST PAD | LINDSAY, Garvin, OK | Pass | State |
| 2023-10-18 | ET GATHERING PROCESSING LLC / FRISCO COMPRESSOR STATION | CHICKASHA, Grady, OK | Pass | State |
| 2023-10-18 | ET GATHERING PROCESSING LLC / FRISCO COMPRESSOR STATION | CHICKASHA, Grady, OK | Pass | State |
| 2023-10-18 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2023-10-18 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2023-10-18 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2023-10-18 | CALYX ENERGY III LLC / JASMINE PAD | LAMAR, Hughes, OK | Pass | State |
| 2023-10-18 | MARKWEST OKLAHOMA GAS CO LLC / KINGFISHER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-10-18 | MARKWEST OKLAHOMA GAS CO LLC / KINGFISHER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-10-18 | CALYX ENERGY III LLC / TESLA PAD | VERNON, McIntosh, OK | Pass | State |
| 2023-10-18 | HARRISON GYPSUM LLC DBA ARCOSA SPECIALT / MOORELAND | MOORELAND, Woodward, OK | Pass | State |
| 2023-10-18 | TRANSCONTINENTAL GAS/WHARTON STATION 535 | AUSTIN, Potter, PA | Pass | State |
| 2023-10-18 | TEXAS EASTERN TRANS LP/LILLY STA | LILLY, Cambria, PA | Pass | State |
| 2023-10-18 | MECHANICSBURG TERM DE LLC/MECHANICSBURG NORTH TERMINAL | MECHANICSBURG, Cumberland, PA | Pass | State |
| 2023-10-18 | ADHESIVES RESEARCH INC/GLEN ROCK — high-priority violation on file | GLEN ROCK, York, PA | Pass | State |
| 2023-10-18 | ROUNDTOP ENERGY/AUBURN | YARDLEY, Susquehanna, PA | Pass | State |
| 2023-10-18 | SOUTHWESTERN ENERGY CO/SCARLET OAK 1H | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2023-10-18 | UGI GIBRALTAR GATHERING LLC/GIBRALTAR COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2023-10-18 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2023-10-18 | VOLVO CAR USA LLC | RIDGEVILLE, Berkeley, SC | Pass | State |
| 2023-10-18 | BOSTIK INC | PIEDMONT, Greenville, SC | Pass | State |
| 2023-10-18 | TENNESSEE ALUMINUM PROCESSORS,INC. | MOUNT PLEASANT, Maury, TN | Pass | State |
| 2023-10-18 | MUELLER CO. LLC — high-priority violation on file | CHATTANOOGA, Hamilton, TN | Pass | Local |
| 2023-10-18 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2023-10-18 | HOLLYFRONTIER PUGET SOUND REFINERY | ANACORTES, Skagit, WA | Pass | Local |
| 2023-10-18 | CLCM OAK CREEK — high-priority violation on file | OAK CREEK, Monroe, WI | Fail | State |
| 2023-10-18 | QUAD/GRAPHICS INC | SUSSEX, Waupaca, WI | Pass | State |
| 2023-10-18 | WINNEBAGO COUNTY LANDFILL | OSHKOSH, Wood, WI | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-18 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-10-17 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-10-17 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | BUTLER, Choctaw, AL | Pass | State |
| 2023-10-17 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | BUTLER, Choctaw, AL | Pass | State |
| 2023-10-17 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | BUTLER, Choctaw, AL | Pass | State |
| 2023-10-17 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | BUTLER, Choctaw, AL | Pass | State |
| 2023-10-17 | VANTIVE US HEALTHCARE, LLC. | MOUNTAIN HOME, Baxter, AR | Pass | State |
| 2023-10-17 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2023-10-17 | SLOAN VALVE COMPANY - AUGUSTA DIVISION | AUGUSTA, Woodruff, AR | Pass | State |
| 2023-10-17 | FREEPORT-MCMORAN - MORENCI | MORENCI, Greenlee, AZ | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.