EPA Air · stack tests by year
Air-emissions stack tests in 2020
- 33,437Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2020
- California 15,352
- Ohio 2,194
- Florida 1,532
- Oklahoma 1,517
- Indiana 1,473
- Georgia 1,147
- New Mexico 846
- Pennsylvania 725
- Alabama 674
- Texas 617
- Missouri 607
- Arkansas 589
- Mississippi 438
- Colorado 429
- Washington 407
- Iowa 355
- North Carolina 274
- Wyoming 235
- Wisconsin 229
- Michigan 222
- South Carolina 221
- Montana 217
- Minnesota 213
- Delaware 211
- Kentucky 184
- West Virginia 175
- Utah 158
- Tennessee 149
- Kansas 144
- Nebraska 142
- Alaska 141
- Maine 136
- Nevada 134
- Virginia 132
- Illinois 129
- North Dakota 129
- New Jersey 122
- Connecticut 110
- Arizona 97
- New York 93
- Hawaii 84
- Louisiana 83
- Idaho 81
- New Hampshire 72
- Maryland 46
- South Dakota 46
- Oregon 39
- Rhode Island 30
- District of Columbia 30
- Vermont 17
- Massachusetts 7
- Puerto Rico 3
Other years
Air-emissions stack tests recorded in 2020
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2020-11-18 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2020-11-18 | SSAB IOWA INC — high-priority violation on file | MUSCATINE, Muscatine, IA | Pass | State |
| 2020-11-18 | CENTRAL IOWA RENEWABLE ENERGY (CORN) LP | GOLDFIELD, Wright, IA | Pass | State |
| 2020-11-18 | CENTRAL IOWA RENEWABLE ENERGY (CORN) LP | GOLDFIELD, Wright, IA | Pass | State |
| 2020-11-18 | CENTRAL IOWA RENEWABLE ENERGY (CORN) LP | GOLDFIELD, Wright, IA | Pass | State |
| 2020-11-18 | CENTRAL IOWA RENEWABLE ENERGY (CORN) LP | GOLDFIELD, Wright, IA | Pass | State |
| 2020-11-18 | TEMPLETON RYE SPIRITS, LLC — high-priority violation on file | TEMPLETON, Carroll, IA | Pass | State |
| 2020-11-18 | CEDAR RAPIDS/LINN COUNTY SWA SITE 2 | MARION, Linn, IA | Pass | Local |
| 2020-11-18 | HONDA DEVELOPMENT & MANUFACTURING OF AMERICA LLC INDIANA AUT — high-priority violation on file | GREENSBURG, Decatur, IN | Pass | State |
| 2020-11-18 | ATLAS FOUNDRY COMPANY INC | MARION, Grant, IN | Pass | State |
| 2020-11-18 | ATLAS FOUNDRY COMPANY INC | MARION, Grant, IN | Pass | State |
| 2020-11-18 | ATLAS FOUNDRY COMPANY INC | MARION, Grant, IN | Pass | State |
| 2020-11-18 | ATLAS FOUNDRY COMPANY INC | MARION, Grant, IN | Pass | State |
| 2020-11-18 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2020-11-18 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2020-11-18 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2020-11-18 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2020-11-18 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2020-11-18 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2020-11-18 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2020-11-18 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2020-11-18 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2020-11-18 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2020-11-18 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2020-11-18 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2020-11-18 | GRANT COUNTY FEEDERS | ULYSSES, Grant, KS | Pass | State |
| 2020-11-18 | ET GATHERING & PROCESSING - HUGOTON #1 STATION (AIR) | HUGOTON, Haskell, KS | Pass | State |
| 2020-11-18 | GE APPLIANCES, A HAIER COMPANY - APPLIANCE PARK | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2020-11-18 | NUCOR STEEL LOUISIANA LLC - DIRECT REDUCED IRON FACILITY — high-priority violation on file | CONVENT, St. James, LA | Pass | State |
| 2020-11-18 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pending | State |
| 2020-11-18 | PANHANDLE EASTERN PIPELINE CO - HOUSTONIA | LA MONTE, Pettis, MO | Pending | State |
| 2020-11-18 | GEORGIA PACIFIC WOOD PRODUCTS LLC, TAYLORSVILLE | TAYLORSVILLE, Smith, MS | Pass | State |
| 2020-11-18 | GEORGIA PACIFIC WOOD PRODUCTS LLC, TAYLORSVILLE | TAYLORSVILLE, Smith, MS | Pass | State |
| 2020-11-18 | DOMTAR PAPER COMPANY, LLC | PLYMOUTH, Martin, NC | Pass | State |
| 2020-11-18 | CONSOLIDATED METCO, INC. | MONROE, Union, NC | Pass | State |
| 2020-11-18 | SEVERUS COMPRESSOR STATION | MONUMENT, Lea, NM | Pass | State |
| 2020-11-18 | SEVERUS COMPRESSOR STATION | MONUMENT, Lea, NM | Pass | State |
| 2020-11-18 | HEBREW HOME FOR THE AGED AT RIVERDALE | BRONX, Bronx, NY | Pass | State |
| 2020-11-18 | HOLLINGSWORTH & VOSE-EASTON MILL | EASTON, Washington, NY | Pass | State |
| 2020-11-18 | JOHNS MANVILLE | DEFIANCE, Defiance, OH | Pass | State |
| 2020-11-18 | JOHNS MANVILLE | DEFIANCE, Defiance, OH | Pass | State |
| 2020-11-18 | JOHNS MANVILLE | DEFIANCE, Defiance, OH | Pass | State |
| 2020-11-18 | JOHNS MANVILLE | DEFIANCE, Defiance, OH | Pass | State |
| 2020-11-18 | ROBERT P. MONE PLANT | CONVOY, Van Wert, OH | Pass | State |
| 2020-11-18 | ROBERT P. MONE PLANT | CONVOY, Van Wert, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-11-18 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2020-11-18 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2020-11-18 | W. H. SAMMIS PLANT | STRATTON, Jefferson, OH | Pass | State |
| 2020-11-18 | MORIROKU TECHNOLOGY NORTH AMERICA - GREENVILLE | GREENVILLE, Darke, OH | Pass | State |
| 2020-11-18 | MORIROKU TECHNOLOGY NORTH AMERICA - GREENVILLE | GREENVILLE, Darke, OH | Pass | State |
| 2020-11-18 | MORIROKU TECHNOLOGY NORTH AMERICA - GREENVILLE | GREENVILLE, Darke, OH | Pass | State |
| 2020-11-18 | VALIDUS ENERGY II MIDCON LLC / BLURTON 2 7 6XH 3 7 6XH 4 7 6XH | WATONGA, Blaine, OK | Pass | State |
| 2020-11-18 | DCP OPERATING CO LP / FORREST HILLS STATION | GUTHRIE, Logan, OK | Pass | State |
| 2020-11-18 | PA DHS/TORRANCE STATE HOSP | TORRANCE, Westmoreland, PA | Fail | State |
| 2020-11-18 | BLUESTONE PIPELINE CO OF PA/HARMONY COMP STA | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2020-11-18 | CARBON BLACK GLOBAL, LLC | DUNLAP, Sequatchie, TN | Incomplete | State |
| 2020-11-18 | TENNESSEE VALLEY AUTHORITY - GALLATIN FOSSIL PLANT | GALLATIN, Sumner, TN | Pass | State |
| 2020-11-18 | JEWELL COKE COMPANY LP | OAKWOOD, Buchanan, VA | Pass | State |
| 2020-11-18 | VAUGHAN BASSETT FURNITURE CO GALAX PLANT #2 | GALAX, Galax (city), VA | Pass | State |
| 2020-11-18 | PHILLIPS 66 | FERNDALE, Whatcom, WA | Pass | Local |
| 2020-11-18 | LANXESS CORPORATION — high-priority violation on file | KALAMA, Cowlitz, WA | N/A | Local |
| 2020-11-18 | U.S. ENERGY GREEN BAY BUCKEYE TERMINAL | GREEN BAY, Brown, WI | Pass | State |
| 2020-11-18 | DIDION MILLING INC. | CAMBRIA, Columbia, WI | Fail | State |
| 2020-11-18 | LOVELL GRINDING PLANT (BENTONITE PERFORMANCE MINERALS) | LOVELL, Big Horn, WY | Pass | State |
| 2020-11-18 | LARAMIE RIVER STATION (BASIN ELECTRIC POWER COOPERATIVE) — high-priority violation on file | WHEATLAND, Platte, WY | Pass | State |
| 2020-11-18 | EAKIN COMPRESSOR STATION (MOUNTAIN WEST PIPELINE, LLC) | UINTA COUNTY, Uinta, WY | Pass | State |
| 2020-11-17 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2020-11-17 | JOHNSON COMPRESSOR STATION | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2020-11-17 | SOUTHERN NATURAL GAS | ANNISTON, Calhoun, AL | Pass | State |
| 2020-11-17 | WESTROCK COMPANY, LLC | STEVENSON, Jackson, AL | Pass | State |
| 2020-11-17 | DCP MIDSTREAM | CODEN, Mobile, AL | Pass | State |
| 2020-11-17 | HUNT REFINING COMPANY | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2020-11-17 | HUNT REFINING COMPANY | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2020-11-17 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-1 | QUITMAN, Faulkner, AR | Pass | State |
| 2020-11-17 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-2 | QUITMAN, Faulkner, AR | Pass | State |
| 2020-11-17 | LSB CHEMICAL LLC | EL DORADO, Union, AR | Pass | State |
| 2020-11-17 | LSB CHEMICAL LLC | EL DORADO, Union, AR | Pass | State |
| 2020-11-17 | TESORO REFINING & MARKETING CO, LLC — high-priority violation on file | CARSON, Los Angeles, CA | Pass | Local |
| 2020-11-17 | ULTRAMAR INC | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-11-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
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 with stack tests in 2020. It lists 33,437 stack tests recorded nationwide in 2020.