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 |
|---|---|---|---|---|
| 2023-09-14 | DUNAMIS ENERGY - IRISH WELL PAD | SEVERANCE 3.0 MI. N OF, Weld, CO | Pass | State |
| 2023-09-14 | PDC ENERGY - MCNEAR 10-9 PAD | GREELEY AREA, Weld, CO | Fail | State |
| 2023-09-14 | PDC ENERGY - MCNEAR 10-9 PAD | GREELEY AREA, Weld, CO | Pass | State |
| 2023-09-14 | DUNAMIS ENERGY - SASKATCHEWAN PAD | AULT AREA, Weld, CO | Pass | State |
| 2023-09-14 | WALLINGFORD ENERGY, LLC | WALLINGFORD, New Haven, CT | Pass | State |
| 2023-09-14 | ENERGY CENTER DOVER, LLC — high-priority violation on file | DOVER (KENT,DE), New Castle, DE | Pass | State |
| 2023-09-14 | ENERGY CENTER DOVER, LLC — high-priority violation on file | DOVER (KENT,DE), New Castle, DE | Pass | State |
| 2023-09-14 | ENERGY CENTER DOVER, LLC — high-priority violation on file | DOVER (KENT,DE), New Castle, DE | Pass | State |
| 2023-09-14 | ENERGY CENTER DOVER, LLC — high-priority violation on file | DOVER (KENT,DE), New Castle, DE | Pass | State |
| 2023-09-14 | ENERGY CENTER DOVER, LLC — high-priority violation on file | DOVER (KENT,DE), New Castle, DE | Pass | State |
| 2023-09-14 | ENERGY CENTER DOVER, LLC — high-priority violation on file | DOVER (KENT,DE), New Castle, DE | Pass | State |
| 2023-09-14 | ENERGY CENTER DOVER, LLC — high-priority violation on file | DOVER (KENT,DE), New Castle, DE | Pass | State |
| 2023-09-14 | FLORIDA POWER & LIGHT COMPANY | PENSACOLA, Escambia, FL | Pass | State |
| 2023-09-14 | TRANSMONTAIGNE OPERATING COMPANY LP | PENSACOLA, Escambia, FL | Pass | State |
| 2023-09-14 | LANGBOARD - WILLACOOCHEE — high-priority violation on file | WILLACOOCHEE, Atkinson, GA | Pass | State |
| 2023-09-14 | INTERSTATE PAPER LLC DBA DSSMITH RICEBORO — high-priority violation on file | RICEBORO, Liberty, GA | Pass | State |
| 2023-09-14 | INTERSTATE PAPER LLC DBA DSSMITH RICEBORO — high-priority violation on file | RICEBORO, Liberty, GA | Pass | State |
| 2023-09-14 | CLEARWATER PAPER CORPORATION - AUGUSTA MILL — high-priority violation on file | AUGUSTA, Richmond, GA | Pass | State |
| 2023-09-14 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2023-09-14 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2023-09-14 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2023-09-14 | PHEND & BROWN INC | LEESBURG, Kosciusko, IN | Pass | State |
| 2023-09-14 | PHEND & BROWN INC | LEESBURG, Kosciusko, IN | Pass | State |
| 2023-09-14 | PHEND & BROWN INC | LEESBURG, Kosciusko, IN | Pass | State |
| 2023-09-14 | PHEND & BROWN INC | LEESBURG, Kosciusko, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Fail | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-14 | INDIANAPOLIS POWER & LIGHT COMPANY DBA AES INDIANA - HARDING — high-priority violation on file | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-09-14 | KY UTILITIES CO - GHENT STATION | GHENT, Carroll, KY | Pass | State |
| 2023-09-14 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2023-09-14 | VENTURE GLOBAL CALCASIEU PASS LLC - CALCASIEU PASS LNG PROJECT | CAMERON, Cameron, LA | Pass | State |
| 2023-09-14 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2023-09-14 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2023-09-14 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2023-09-14 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pass | State |
| 2023-09-14 | IDEKER INC-AMITY | KANSAS CITY, Platte, MO | Pass | State |
| 2023-09-14 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2023-09-14 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2023-09-14 | BAKKEN GATHERING PLANT | SIDNEY, Richland, MT | Pass | State |
| 2023-09-14 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pass | State |
| 2023-09-14 | DOMTAR PAPER COMPANY, LLC | PLYMOUTH, Martin, NC | Pass | State |
| 2023-09-14 | RICHMOND COUNTY TRANSFER FACILITY (ACI) | ROCKINGHAM, Richmond, NC | Fail | State |
| 2023-09-14 | CONSOLIDATED METCO, INC. | MONROE, Union, NC | Pass | State |
| 2023-09-14 | OPPD CASS COUNTY STATION | PLATTSMOUTH, Cass, NE | N/A | State |
| 2023-09-14 | ASCENT RESOURCES - UTICA LLC - POL PES BL | PEASE, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-14 | ASCENT RESOURCES - UTICA LLC - POL PES BL | PEASE, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-14 | ASCENT RESOURCES - UTICA LLC - POL PES BL | PEASE, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-14 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-09-14 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-09-14 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-09-14 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2023-09-14 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2023-09-14 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2023-09-14 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2023-09-14 | KENT STATE UNIVERSITY HEATING PLANT | KENT, Portage, OH | Pass | State |
| 2023-09-14 | ET GATHERING PROCESSING LLC / CARLTON COMPRESSOR STATION | SOUTHARD, Blaine, OK | Pass | State |
| 2023-09-14 | MUSTANG GAS PRODUCTS LLC / COVINGTON COMPRESSOR STATION | COVINGTON, Garfield, OK | Pass | State |
| 2023-09-14 | MARKWEST OKLAHOMA GAS CO LLC / STANGL COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-09-14 | INTERNATIONAL PAPER | SPRINGFIELD, Lane, OR | Pass | Local |
| 2023-09-14 | INTERNATIONAL PAPER | SPRINGFIELD, Lane, OR | Pass | Local |
| 2023-09-14 | PRIME METALS ACQUISITION LLC/LUCERNE MINES | HOMER CITY, Indiana, PA | Pass | State |
| 2023-09-14 | CNX MIDSTREAM OPR CO LLC /MORRIS DEHY STATION | GRAYSVILLE, Greene, PA | Pass | State |
| 2023-09-14 | MERCEDES-BENZ VANS LLC - CHARLESTON PLANT | LADSON, Charleston, SC | Pass | State |
| 2023-09-14 | HM SOUTHEAST CEMENT LLC | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2023-09-14 | WESTROCK CP, LLC - FLORENCE MILL | FLORENCE, Florence, SC | Pass | State |
| 2023-09-14 | ARAUCO NORTH AMERICA INC — high-priority violation on file | BENNETTSVILLE, Marlboro, SC | Pass | State |
| 2023-09-14 | INTERMOUNTAIN POWER SERVICE CORPORATION | DELTA, Millard, UT | Pass | State |
| 2023-09-14 | NIPPON DYNAWAVE PACKAGING COMPANY LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2023-09-14 | ARDAGH GLASS INC. | SEATTLE, King, WA | Pass | Local |
| 2023-09-14 | REHLKO | KOHLER, Taylor, WI | Pass | State |
| 2023-09-14 | COLUMBIA GAS TRANSMISSION, LLC, SENECA | SENECA ROCKS, Pendleton, WV | Pass | State |
| 2023-09-14 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-14 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-14 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-14 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-14 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-14 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-14 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-14 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-14 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2023-09-14 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.