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 |
|---|---|---|---|---|
| 2023-10-10 | SUWANNEE AMERICAN CEMENT COMPANY, LLC. | SUMTERVILLE, Sumter, FL | Pass | State |
| 2023-10-10 | SUWANNEE AMERICAN CEMENT COMPANY, LLC. | SUMTERVILLE, Sumter, FL | Pass | State |
| 2023-10-10 | SUWANNEE AMERICAN CEMENT COMPANY, LLC. | SUMTERVILLE, Sumter, FL | Pass | State |
| 2023-10-10 | MARTA - LAREDO DRIVE CNG STATION | DECATUR, DeKalb, GA | Pass | State |
| 2023-10-10 | MARTA - LAREDO DRIVE CNG STATION | DECATUR, DeKalb, GA | Pass | State |
| 2023-10-10 | MARTA - LAREDO DRIVE CNG STATION | DECATUR, DeKalb, GA | Pass | State |
| 2023-10-10 | INTERSTATE PAPER LLC DBA DSSMITH RICEBORO — high-priority violation on file | RICEBORO, Liberty, GA | Pass | State |
| 2023-10-10 | MECO - PALAAU | PALAAU, Maui, HI | Pass | State |
| 2023-10-10 | LAMONI MUNICIPAL UTILITIES | LAMONI (HISTORICAL), Decatur, IA | Pass | State |
| 2023-10-10 | LAMONI MUNICIPAL UTILITIES | LAMONI (HISTORICAL), Decatur, IA | Pass | State |
| 2023-10-10 | LAMONI MUNICIPAL UTILITIES | LAMONI (HISTORICAL), Decatur, IA | Pass | State |
| 2023-10-10 | HK CONTRACTORS INC - TETON | TETON, Fremont, ID | Fail | State |
| 2023-10-10 | WESTERN CONSTRUCTION 00518 | BOISE, Ada, ID | Fail | State |
| 2023-10-10 | CLINTON LFGTE FACILITY | CLINTON, De Witt, IL | Pass | State |
| 2023-10-10 | GATEWAY PACKAGING INC — high-priority violation on file | GRANITE CITY, Madison, IL | Pass | State |
| 2023-10-10 | MEXICHEM SPECIALTY RESINS INC — high-priority violation on file | HENRY, Marshall, IL | Pass | State |
| 2023-10-10 | HARRISON STEEL CASTINGS COMPANY — high-priority violation on file | ATTICA, Fountain, IN | Pass | State |
| 2023-10-10 | HARRISON STEEL CASTINGS COMPANY — high-priority violation on file | ATTICA, Fountain, IN | Fail | State |
| 2023-10-10 | HARRISON STEEL CASTINGS COMPANY — high-priority violation on file | ATTICA, Fountain, IN | Pass | State |
| 2023-10-10 | CARMEUSE LIME INCORPORATED — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-10-10 | CARMEUSE LIME INCORPORATED — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-10-10 | CARMEUSE LIME INCORPORATED — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-10-10 | CARMEUSE LIME INCORPORATED — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-10-10 | W. R. GRACE & CO. - CONN. | CURTIS BAY, Baltimore (city), MD | Pass | State |
| 2023-10-10 | CONSUMERS ENERGY - NORTHVILLE COMPRESSOR STATION | NORTHVILLE, Wayne, MI | Pass | State |
| 2023-10-10 | CHS HALLOCK | KENNEDY, Kittson, MN | Pass | State |
| 2023-10-10 | AMERICAN CRYSTAL SUGAR - CROOKSTON | CROOKSTON, Polk, MN | Pass | State |
| 2023-10-10 | ESCO GROUP LLC | NEWTON, Newton, MS | Pass | State |
| 2023-10-10 | ESCO GROUP LLC | NEWTON, Newton, MS | Pass | State |
| 2023-10-10 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-10 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-10 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-10 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-10 | BATESVILLE MANUFACTURING LLC, VICKSBURG | VICKSBURG, Warren, MS | Pass | State |
| 2023-10-10 | BATESVILLE MANUFACTURING LLC, VICKSBURG | VICKSBURG, Warren, MS | Pass | State |
| 2023-10-10 | CHEMOURS COMPANY - FAYETTEVILLE WORKS | FAYETTEVILLE, Bladen, NC | Pending | State |
| 2023-10-10 | CORNING INCORPORATED - MIDLAND | MIDLAND, Cabarrus, NC | Pass | State |
| 2023-10-10 | CORNING INCORPORATED - MIDLAND | MIDLAND, Cabarrus, NC | Pass | State |
| 2023-10-10 | CHARLOTTE PIPE AND FOUNDRY COMPANY | OAKBORO, Stanly, NC | Pass | State |
| 2023-10-10 | ADM CORN PROCESSING — high-priority violation on file | COLUMBUS, Platte, NE | N/A | State |
| 2023-10-10 | MAVERICK COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-10 | MAVERICK COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-10 | BOROS WEST FACILITY — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2023-10-10 | INNOVATIVE / FULTON | JOHNSTOWN(T), Fulton, NY | Pass | State |
| 2023-10-10 | NEWTON ASPHALT — high-priority violation on file | DOVER, Tuscarawas, OH | Pass | State |
| 2023-10-10 | NEWTON ASPHALT — high-priority violation on file | DOVER, Tuscarawas, OH | Pass | State |
| 2023-10-10 | NEWTON ASPHALT — high-priority violation on file | DOVER, Tuscarawas, OH | Fail | State |
| 2023-10-10 | AURORA - SUNOCO LLC | AURORA, Portage, OH | Pass | State |
| 2023-10-10 | AURORA - SUNOCO LLC | AURORA, Portage, OH | Pass | State |
| 2023-10-10 | PEOPLES ELECTRIC COOP / LITTLE DIXIE FACILITY | CENTRAHOMA, Coal, OK | Pass | State |
| 2023-10-10 | PEOPLES ELECTRIC COOP / LITTLE DIXIE FACILITY | CENTRAHOMA, Coal, OK | Pass | State |
| 2023-10-10 | BCE MACH LLC / MACKEY LEE 33 29 17 2H PAD | CAMP HOUSTON, Woods, OK | Pass | State |
| 2023-10-10 | BCE MACH LLC / HARZMAN 22 28 17 1H PAD | FREEDOM, Woods, OK | Pass | State |
| 2023-10-10 | MONTOUR LLC/MONTOUR SES | WASHINGTONVILLE, Montour, PA | Pass | State |
| 2023-10-10 | COLUMBIA GAS TRANS CORP/CGT DELMONT COMP STA | DELMONT, Westmoreland, PA | Pass | State |
| 2023-10-10 | HOLY REDEEMER HOSP & MED CTR/ABINGTON | JENKINTOWN, Montgomery, PA | Pass | State |
| 2023-10-10 | NEXTERA RENEWABLE FUELS LLC/GREATER LEBANON LDFL | LEBANON, Lebanon, PA | Fail | State |
| 2023-10-10 | SWN PROD CO LLC/DEPUE COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2023-10-10 | UGI AUBURN GATHERING LLC/ MANNING COMPRESSOR LNG STA | MESHOPPEN, Wyoming, PA | Pass | State |
| 2023-10-10 | INTERNATIONAL PAPER - GEORGETOWN MILL | GEORGETOWN, Georgetown, SC | Pass | State |
| 2023-10-10 | AG PROCESSING INC. | ABERDEEN, Brown, SD | Pass | State |
| 2023-10-10 | MARELLI TENNESSEE USA LLC | PULASKI, Giles, TN | Pass | State |
| 2023-10-10 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2023-10-10 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2023-10-10 | KNAUF INSULATION, INC., INWOOD | INWOOD, Berkeley, WV | Pass | State |
| 2023-10-09 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2023-10-09 | SONOCO PRODUCTS CO | CITY OF INDUSTRY, Los Angeles, CA | Pass | Local |
| 2023-10-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-09 | KERR-MCGEE - X10017 34002054 BROWN 35NHZ | PLATTEVILLE 3.7 MI. SE OF, Weld, CO | Pass | State |
| 2023-10-09 | VERDAD RESOURCES - TIMBRO 9-59 8B PAD | GROVER 12.9 MI. N OF, Weld, CO | Pass | State |
| 2023-10-09 | CITY OF GAINESVILLE, GRU — high-priority violation on file | GAINESVILLE, Alachua, FL | Pass | State |
| 2023-10-09 | SUWANNEE AMERICAN CEMENT COMPANY, LLC. | SUMTERVILLE, Sumter, FL | Pass | State |
| 2023-10-09 | SUWANNEE AMERICAN CEMENT COMPANY, LLC. | SUMTERVILLE, Sumter, FL | Pass | State |
| 2023-10-09 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | MONROE, Monroe, MI | Pending | State |
| 2023-10-09 | ADM - MARSHALL | MARSHALL, Lyon, MN | Pass | State |
| 2023-10-09 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2023-10-09 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2023-10-09 | CORNING INCORPORATED - MIDLAND | MIDLAND, Cabarrus, NC | Pass | State |
| 2023-10-09 | POSEIDON CTB | JAL, Eddy, NM | Pass | State |
| 2023-10-09 | BOROS WEST FACILITY — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2023-10-09 | BOROS WEST FACILITY — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2023-10-09 | ACE STERN VEGAS FACILITY | LOVING, Eddy, NM | Pass | State |
| 2023-10-09 | PECOS RIVER TREATER | MALAGA, Eddy, NM | Pass | State |
| 2023-10-09 | CAVERN COMPRESSOR STATION | WHITES CITY, Eddy, NM | Pass | State |
| 2023-10-09 | ENLINK MIDSTREAM SERVICES LLC / SAPPHIRE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2023-10-09 | FW MIDCON I LLC / DAVIS 1H 34X | MIDDLEBERG, Grady, OK | Pass | State |
| 2023-10-09 | MARKWEST OKLAHOMA GAS CO LLC / DUNN COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2023-10-09 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2023-10-09 | EOG RESOURCES INC / CANDI 231411 1H PRODUCTION FACILITY | BLANCHARD, McClain, OK | Pass | State |
| 2023-10-09 | EOG RESOURCES INC / HAWK DUAL CTB | NEWCASTLE, McClain, OK | Pass | State |
| 2023-10-09 | EMPIRE PIPELINE INC/JACKSON COMP STA | LAWRENCEVILLE, Tioga, PA | Pass | State |
| 2023-10-09 | SOUTH DAKOTA SOYBEAN PROCESSORS - VOLGA | VOLGA, Brookings, SD | Pass | State |
| 2023-10-09 | PUGET SOUND ENERGY (WA NATURAL GAS) | CHEHALIS, Lewis, WA | Pass | Local |
| 2023-10-09 | AMERICAN PACKAGING CORP | COLUMBUS, Columbia, WI | Pass | State |
| 2023-10-09 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-09 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-09 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.