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 |
|---|---|---|---|---|
| 2023-10-31 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2023-10-31 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2023-10-31 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2023-10-31 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2023-10-31 | WHITE STREET RENEWABLES, LLC | GREENSBORO, Guilford, NC | Pass | State |
| 2023-10-31 | HEBRON BRICK COMPANY - HEBRON BRICK PLANT - AQ | HEBRON, Morton, ND | Pass | State |
| 2023-10-31 | KIMBALL MUNICIPAL POWER PLANT — high-priority violation on file | KIMBALL, Kimball, NE | Pass | State |
| 2023-10-31 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2023-10-31 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2023-10-31 | TEXANA COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2023-10-31 | TEXANA COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2023-10-31 | PIRATE STATE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-10-31 | GREYHOUND COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2023-10-31 | PONY EXPRESS FED WEST TB | MONUMENT, Lea, NM | Pass | State |
| 2023-10-31 | NORTH VALMY GENERATING STATION | VALMY, Humboldt, NV | Pass | State |
| 2023-10-31 | SUN PEAK GENERATING STATION | LAS VEGAS, Clark, NV | Pass | Local |
| 2023-10-31 | DUTCHESS CO RESOURCE RECOVERY FACILITY | POUGHKEEPSIE, Dutchess, NY | Pass | State |
| 2023-10-31 | MOMENTIVE PERFORMANCE MATERIALS | WATERFORD, Saratoga, NY | Pass | State |
| 2023-10-31 | ELYRIA FOUNDRY | ELYRIA, Lorain, OH | Pass | State |
| 2023-10-31 | ELYRIA FOUNDRY | ELYRIA, Lorain, OH | Pass | State |
| 2023-10-31 | ELYRIA FOUNDRY | ELYRIA, Lorain, OH | Pass | State |
| 2023-10-31 | ELYRIA FOUNDRY | ELYRIA, Lorain, OH | Pass | State |
| 2023-10-31 | LIMESTONE RNG HIGH BTU FACILITY — high-priority violation on file | LOWELLVILLE, Mahoning, OH | Pass | State |
| 2023-10-31 | LIMESTONE RNG HIGH BTU FACILITY — high-priority violation on file | LOWELLVILLE, Mahoning, OH | Pass | State |
| 2023-10-31 | MARTIN MARIETTA MAGNESIA SPECIALTIES INC. | WOODVILLE, Sandusky, OH | Pass | State |
| 2023-10-31 | PYLES PAD 952757 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2023-10-31 | PYLES PAD 952757 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2023-10-31 | PYLES PAD 952757 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2023-10-31 | CRAIG MILLER PAD 952413 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2023-10-31 | CRAIG MILLER PAD 952413 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2023-10-31 | CRAIG MILLER PAD 952413 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2023-10-31 | INR MIDSTREAM, LLC - UPPER HILL COMPRESSOR STATION | SARAHSVILLE, Noble, OH | Pass | State |
| 2023-10-31 | INR MIDSTREAM, LLC - UPPER HILL COMPRESSOR STATION | SARAHSVILLE, Noble, OH | Pass | State |
| 2023-10-31 | INR MIDSTREAM, LLC - UPPER HILL COMPRESSOR STATION | SARAHSVILLE, Noble, OH | Pass | State |
| 2023-10-31 | ONEOK FIELD SERVICES CO LLC / DAKOTA COMPRESSOR STATION | GEARY, Canadian, OK | Pass | State |
| 2023-10-31 | ONEOK FIELD SERVICES CO LLC / DAKOTA COMPRESSOR STATION | GEARY, Canadian, OK | Pass | State |
| 2023-10-31 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2023-10-31 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2023-10-31 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2023-10-31 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2023-10-31 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2023-10-31 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2023-10-31 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2023-10-31 | HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file | FLEETWOOD, Berks, PA | Pass | State |
| 2023-10-31 | NEXTERA RENEWABLE FUELS LLC/FREY FARM CRESWELL LDFL | CONESTOGA, Lancaster, PA | Pass | State |
| 2023-10-31 | WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2023-10-31 | EQM GATHERING OPCO LLC/MCINTOSH COMP STA | FINLEYVILLE, Washington, PA | Pass | State |
| 2023-10-31 | COTERRA ENERGY INC/ADAMS J PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2023-10-31 | PACIFICORP HUNTER | UTAH, Undetermined, UT | Pass | State |
| 2023-10-31 | UNIROYAL GLOBAL ENGINEERED PRODUCTS LLC — high-priority violation on file | STOUGHTON, Dane, WI | Fail | State |
| 2023-10-31 | ANR PIPELINE CO - KEWASKUM COMPRESSOR ST | ADELL, Taylor, WI | Pass | State |
| 2023-10-31 | GREER LIME COMPANY, RIVERTON | RIVERTON, Pendleton, WV | Pass | State |
| 2023-10-31 | COLUMBIA GAS TRANSMISSION, LLC, KENOVA | KENOVA, Wayne, WV | Pass | State |
| 2023-10-31 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | EVANSVILLE, Natrona, WY | Pass | State |
| 2023-10-31 | FREWEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-31 | FREWEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-30 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2023-10-30 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2023-10-30 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2023-10-30 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2023-10-30 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2023-10-30 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2023-10-30 | DCP MIDSTREAM | CODEN, Mobile, AL | Pass | State |
| 2023-10-30 | KAISER ALUMINUM FABRICATED PRODUCTS | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | E & J GALLO WINERY | FRESNO, Fresno, CA | Pass | Local |
| 2023-10-30 | BONANZA CRK STATE NORTH PLATTE CPF 42-26 | KERSEY 7.1 MI. N OF, Weld, CO | Fail | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | CITY OF TAMPA | TAMPA, Hillsborough, FL | Pass | State |
| 2023-10-30 | FLORIDA GAS TRANSMISSION COMPANY, LLC | PLANT CITY, Hillsborough, FL | Pass | State |
| 2023-10-30 | FLORIDA GAS TRANSMISSION COMPANY, LLC | PLANT CITY, Hillsborough, FL | Pass | State |
| 2023-10-30 | BD MADISON | MADISON, Morgan, GA | N/A | State |
| 2023-10-30 | BD MADISON | MADISON, Morgan, GA | N/A | State |
| 2023-10-30 | AMSTED RAIL CO INC | GRANITE CITY, Madison, IL | Pass | State |
| 2023-10-30 | US ARMY GARRISON FORT KNOX | FORT KNOX, Hardin, KY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.