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 |
|---|---|---|---|---|
| 2023-11-09 | SHERIDAN MEDICAL CENTER (DEPARTMENT OF VETERANS AFFAIRS) | SHERIDAN, Sheridan, WY | Pass | State |
| 2023-11-09 | SHERIDAN MEDICAL CENTER (DEPARTMENT OF VETERANS AFFAIRS) | SHERIDAN, Sheridan, WY | Pass | State |
| 2023-11-09 | SHERIDAN MEDICAL CENTER (DEPARTMENT OF VETERANS AFFAIRS) | SHERIDAN, Sheridan, WY | Pass | State |
| 2023-11-09 | WORLAND FACTORY (WYOMING SUGAR CO.) | WORLAND, Washakie, WY | Pass | State |
| 2023-11-09 | WORLAND FACTORY (WYOMING SUGAR CO.) | WORLAND, Washakie, WY | Pass | State |
| 2023-11-08 | SOUTHERN NATURAL GAS | REFORM, Pickens, AL | Pass | State |
| 2023-11-08 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | WADLEY, Randolph, AL | Pass | State |
| 2023-11-08 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | WADLEY, Randolph, AL | Pass | State |
| 2023-11-08 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | WADLEY, Randolph, AL | Pass | State |
| 2023-11-08 | DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-1 | QUITMAN, Cleburne, AR | Pass | State |
| 2023-11-08 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2023-11-08 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2023-11-08 | DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW | CENTER RIDGE, Conway, AR | Pass | State |
| 2023-11-08 | RAZORBACK GATHERING COMPANY, LLC. - HARMONY CPF 1 | SEARCY, White, AR | Pass | State |
| 2023-11-08 | RAZORBACK GATHERING COMPANY, LLC. - HARMONY CPF 1 | SEARCY, White, AR | Pass | State |
| 2023-11-08 | SFPP, L.P. (NSR USE ONLY) | ORANGE, Orange, CA | Fail | Local |
| 2023-11-08 | OC WASTE & RECYCLING, COYOTE | NEWPORT COAST, Orange, CA | Pass | Local |
| 2023-11-08 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2023-11-08 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2023-11-08 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2023-11-08 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2023-11-08 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2023-11-08 | CHEVRON USA INC - PICEANCE BASIN CENTRAL | PARACHUTE 16.6 MI. NW OF, Garfield, CO | Pass | State |
| 2023-11-08 | MONTROSE FOREST PRODUCTS LLC | MONTROSE, Montrose, CO | Pass | State |
| 2023-11-08 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2023-11-08 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2023-11-08 | BUCKEYE TERMINALS, LLC | TAMPA, Hillsborough, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2023-11-08 | EMORY UNIVERSITY | ATLANTA, DeKalb, GA | Pass | State |
| 2023-11-08 | REDBONE RIDGES MSW LANDFILL | RANGER, Gordon, GA | Pass | State |
| 2023-11-08 | ARGLASS YAMAMURA SE, LLC — high-priority violation on file | VALDOSTA, Lowndes, GA | Pass | State |
| 2023-11-08 | ARGLASS YAMAMURA SE, LLC — high-priority violation on file | VALDOSTA, Lowndes, GA | Pass | State |
| 2023-11-08 | GA POWER CO. - PLANT SCHERER | JULIETTE, Monroe, GA | Pass | State |
| 2023-11-08 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-11-08 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-11-08 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-11-08 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-11-08 | ENVIVA PELLETS WAYCROSS, LLC — high-priority violation on file | WAYCROSS, Ware, GA | Pass | State |
| 2023-11-08 | CORNING MUNICIPAL UTILITIES | CORNING, Adams, IA | Pass | State |
| 2023-11-08 | CORNING MUNICIPAL UTILITIES | CORNING, Adams, IA | Pass | State |
| 2023-11-08 | CORNING MUNICIPAL UTILITIES | CORNING, Adams, IA | Pass | State |
| 2023-11-08 | POET BIOREFINING - FAIRBANK, LLC | FAIRBANK, Buchanan, IA | Pass | State |
| 2023-11-08 | POET BIOREFINING - FAIRBANK, LLC | FAIRBANK, Buchanan, IA | Pass | State |
| 2023-11-08 | SHELL ROCK SOY PROCESSING | SHELL ROCK, Butler, IA | Pass | State |
| 2023-11-08 | MILNER BUTTE LANDFILL | BURLEY, Cassia, ID | Pass | State |
| 2023-11-08 | KENDALL COUNTY SHERIFF OFFICE | YORKVILLE, Kendall, IL | Pass | State |
| 2023-11-08 | KINGSBURY CASTINGS DIVISION | KINGSBURY, LaPorte, IN | Pass | State |
| 2023-11-08 | TALLGRASS PONY EXPRESS PIPELINE - JENNINGS PUMP STATION | JENNINGS, Decatur, KS | Pass | State |
| 2023-11-08 | HARSHMAN CONST. - WAVERLY QUARRY (AIR) | MELVERN, Osage, KS | Pass | State |
| 2023-11-08 | HARSHMAN CONST. - WAVERLY QUARRY (AIR) | MELVERN, Osage, KS | Pass | State |
| 2023-11-08 | HARSHMAN CONST. - WAVERLY QUARRY (AIR) | MELVERN, Osage, KS | Pass | State |
| 2023-11-08 | HARSHMAN CONST. - PRINGLE QUARRY (AIR) | PRINGLE QUARRY, Woodson, KS | Pass | State |
| 2023-11-08 | BAVARIAN TRUCKING COMPANY INC | WALTON, Boone, KY | Pass | State |
| 2023-11-08 | CAMERON LNG LLC - CAMERON LNG FACILITY — high-priority violation on file | HACKBERRY, Cameron, LA | Pass | State |
| 2023-11-08 | MEDICAL AREA TOTAL ENERGY | BOSTON, CITY OF, Suffolk, MA | Pass | State |
| 2023-11-08 | DTE ELECTRIC COMPANY - PLACID PEAKING FACILITY | CLARKSTON, Oakland, MI | Pass | State |
| 2023-11-08 | SOUTH KENT LANDFILL — high-priority violation on file | BYRON CENTER, Kent, MI | Pass | State |
| 2023-11-08 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2023-11-08 | COLUMBIA GULF TRANSMISSION LLC, CORINTH COMPRESSOR STATION | CORINTH, Alcorn, MS | Pass | State |
| 2023-11-08 | COLUMBIA GULF TRANSMISSION LLC, CORINTH COMPRESSOR STATION | CORINTH, Alcorn, MS | Pass | State |
| 2023-11-08 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-11-08 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2023-11-08 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2023-11-08 | NORTHERN BORDER PIPELINE COMPANY - MANNING COMPRESSOR STATION - AQ | MANNING, Dunn, ND | Pass | State |
| 2023-11-08 | RED BLUFF NO3 COMPRESSOR STATION | ROSWELL, Chaves, NM | Pass | State |
| 2023-11-08 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2023-11-08 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2023-11-08 | SPARTAN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-11-08 | SPARTAN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-11-08 | PICANTE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-11-08 | GOLD QUARRY OPERATIONS — high-priority violation on file | CARLIN, Eureka, NV | Pass | State |
| 2023-11-08 | HAWTHORNE ARMY DEPOT | HAWTHORNE, Mineral, NV | Pass | State |
| 2023-11-08 | MILEY COMPRESSOR STATION | RIPLEY, TOWNSHIP OF, Holmes, OH | Pass | State |
| 2023-11-08 | MILEY COMPRESSOR STATION | RIPLEY, TOWNSHIP OF, Holmes, OH | Pass | State |
| 2023-11-08 | MILEY COMPRESSOR STATION | RIPLEY, TOWNSHIP OF, Holmes, OH | Pass | State |
| 2023-11-08 | ARDAGH METAL PACKAGING USA CORP. | HURON, Erie, OH | Pass | State |
| 2023-11-08 | ARDAGH METAL PACKAGING USA CORP. | HURON, Erie, OH | Pass | State |
| 2023-11-08 | ARDAGH METAL PACKAGING USA CORP. | HURON, Erie, OH | Pass | State |
| 2023-11-08 | REMURIATE DELTA, LLC | DELTA, Fulton, OH | Pass | State |
| 2023-11-08 | WIN WASTE INNOVATIONS OF SENECA COUNTY | FOSTORIA, Seneca, OH | Pass | State |
| 2023-11-08 | WIN WASTE INNOVATIONS OF SENECA COUNTY | FOSTORIA, Seneca, OH | Pass | State |
| 2023-11-08 | WIN WASTE INNOVATIONS OF SENECA COUNTY | FOSTORIA, Seneca, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | EQM OLYMPUS MIDSTREAM, LLC - TYGERR COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2023-11-08 | ASCENT RESOURCES - UTICA LLC - HOWELL 33 SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
| 2023-11-08 | ASCENT RESOURCES - UTICA LLC - HOWELL 33 SMF JF | DILLONVALE, Jefferson, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.