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 |
|---|---|---|---|---|
| 2023-08-29 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-29 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-29 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-29 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-29 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-29 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2023-08-29 | NORTHWEST PIPELINE CORP WASHOUGAL | WASHOUGAL, Clark, WA | Pass | Local |
| 2023-08-29 | BARRON COUNTY WASTE TO ENERGY AND RECYCLING FACILITY — high-priority violation on file | ALMENA, Barron, WI | Pass | State |
| 2023-08-29 | GEORGIA PACIFIC BROADWAY LLC | GREEN BAY, Brown, WI | Pass | State |
| 2023-08-29 | SUPERIOR REFINING COMPANY LLC - PETROLEUM BULK STATIONS AND TERMINALS | SUPERIOR, Douglas, WI | Pass | State |
| 2023-08-29 | NEENAH FOUNDRY COMPANY - NEENAH OPERATIONS (W2179) — high-priority violation on file | NEENAH, Wood, WI | Pass | State |
| 2023-08-29 | EASTERN GAS TRANSMISSION AND STORAGE, INC., LIGHTBURN STATION | JANE LEW, Lewis, WV | Pass | State |
| 2023-08-29 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2023-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2023-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2023-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2023-08-29 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2023-08-28 | DESOTO GATHERING COMPANY, LLC.-OLIVER CPF-1 | SEARCY, White, AR | Pass | State |
| 2023-08-28 | USMC - YERMO LOGISTICS CNTR | BARSTOW, San Bernardino, CA | Pass | Local |
| 2023-08-28 | DEL MONTE CORP-HANFORD PLANT 24 | HANFORD, Kings, CA | Pass | Local |
| 2023-08-28 | DEL MONTE CORP-HANFORD PLANT 24 | HANFORD, Kings, CA | Pass | Local |
| 2023-08-28 | DEL MONTE CORP-HANFORD PLANT 24 | HANFORD, Kings, CA | Pass | Local |
| 2023-08-28 | DEL MONTE CORP-HANFORD PLANT 24 | HANFORD, Kings, CA | Pass | Local |
| 2023-08-28 | DEL MONTE CORP-HANFORD PLANT 24 | HANFORD, Kings, CA | Pass | Local |
| 2023-08-28 | DEL MONTE CORP-HANFORD PLANT 24 | HANFORD, Kings, CA | Pass | Local |
| 2023-08-28 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Fail | Local |
| 2023-08-28 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Fail | Local |
| 2023-08-28 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Fail | Local |
| 2023-08-28 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Fail | Local |
| 2023-08-28 | KRATON CHEMICAL, LLC | PANAMA CITY, Bay, FL | Pass | State |
| 2023-08-28 | JEA | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-08-28 | JEA | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-08-28 | SEMINOLE ELECTRIC COOPERATIVE, INC. | BOWLING GREEN, Hardee, FL | Pass | State |
| 2023-08-28 | SEMINOLE ELECTRIC COOPERATIVE, INC. | BOWLING GREEN, Hardee, FL | Pass | State |
| 2023-08-28 | DUKE ENERGY FLORIDA, LLC | DE BARY-ORANGE CITY DIVISION, Volusia, FL | Pass | State |
| 2023-08-28 | DUKE ENERGY FLORIDA, LLC | DE BARY-ORANGE CITY DIVISION, Volusia, FL | Pass | State |
| 2023-08-28 | GIW INDUSTRIES, INC. | GROVETOWN, Columbia, GA | Pass | State |
| 2023-08-28 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-08-28 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-08-28 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Fail | State |
| 2023-08-28 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-08-28 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-08-28 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-08-28 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-08-28 | CITY WATER LIGHT & POWER | SPRINGFIELD, Sangamon, IL | Pass | State |
| 2023-08-28 | ECOBAT RESOURCES INDIANA LLC | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-08-28 | ECOBAT RESOURCES INDIANA LLC | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-08-28 | SIGECO - FB CULLEY GENERATING STATION | NEWBURGH, Warrick, IN | Pass | State |
| 2023-08-28 | LAUREL RIDGE LANDFILL | LILY, Laurel, KY | Pass | State |
| 2023-08-28 | ATLAS EPS, A DIVISION OF ATLAS ROOFING CORP. | BYRON CENTER, Kent, MI | Pending | State |
| 2023-08-28 | ADM - MARSHALL | MARSHALL, Lyon, MN | Fail | State |
| 2023-08-28 | WILBER MUNICIPAL POWER PLANT — high-priority violation on file | WILBER, Saline, NE | Fail | State |
| 2023-08-28 | FIREBALL GROUP LLC DATA CENTER — high-priority violation on file | PAPILLION, Sarpy, NE | N/A | State |
| 2023-08-28 | TIGER 14 FACILITY — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2023-08-28 | APACHE - PALMILLO 21 CTB | ATOKA, Eddy, NM | Pass | State |
| 2023-08-28 | APACHE - PALMILLO 21 CTB | ATOKA, Eddy, NM | Pass | State |
| 2023-08-28 | BONNYMAN COMPRESSOR STATION | LOVING, Lea, NM | Pass | State |
| 2023-08-28 | BONNYMAN COMPRESSOR STATION | LOVING, Lea, NM | Pass | State |
| 2023-08-28 | BONNYMAN COMPRESSOR STATION | LOVING, Lea, NM | Pass | State |
| 2023-08-28 | EOG RESOURCES, INC. - STOCKER HN MON PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-08-28 | EOG RESOURCES, INC. - STOCKER HN MON PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-08-28 | EOG RESOURCES, INC. - STOCKER HN MON PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2023-08-28 | BCE MACH II LLC / COX 34 11 25 12H | SWEETWATER, Beckham, OK | Pass | State |
| 2023-08-28 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2023-08-28 | FW MIDCON I LLC / FOSTER 0804 2H 3H 20X WHERRELL 0804 2 | BLANCHARD, McClain, OK | Pass | State |
| 2023-08-28 | STIMSON LUMBER COMPANY — high-priority violation on file | GASTON, Washington, OR | Pass | State |
| 2023-08-28 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Pass | State |
| 2023-08-28 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-28 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-28 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-28 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | ANTELOPE ELK ENERGY CENTER | ABERNATHY, Hale, TX | Pass | State |
| 2023-08-28 | NALCO CHAMPION CORSICANA FACILITY | CORSICANA, Navarro, TX | Pass | State |
| 2023-08-28 | AIR FORCE PLANT 4 LOCKHEED MARTIN | FORT WORTH, Tarrant, TX | Pass | State |
| 2023-08-28 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2023-08-28 | BAXTER COMPRESSOR STATION (WYOMING INTERSTATE CO) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-08-27 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2023-08-27 | SCRUBGRASS GENERATING PLT/VENANGO — high-priority violation on file | KENNERDELL, Venango, PA | Pass | State |
| 2023-08-27 | CERTAINTEED GYPSUM MANUFACTURING INC | SEATTLE, King, WA | Pass | Local |
| 2023-08-26 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2023-08-26 | MIDDLETOWN POWER LLC | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2023-08-26 | COLONIAL TERMINALS OPERATING CO., LLC - AUSTELL TERMINAL | AUSTELL, Cobb, GA | Pass | State |
| 2023-08-26 | GA POWER CO. - PLANT SCHERER | JULIETTE, Monroe, GA | Pass | State |
| 2023-08-26 | COURTNEY RIDGE LANDFILL, LLC | SUGAR CREEK, Jackson, MO | Pass | State |
| 2023-08-25 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2023-08-25 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2023-08-25 | KRONOSPAN USA — high-priority violation on file | EASTABOGA, Calhoun, AL | Pass | State |
| 2023-08-25 | KRONOSPAN USA — high-priority violation on file | EASTABOGA, Calhoun, AL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.