EPA Air · stack tests by year
Air-emissions stack tests in 2024
- 39,252Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2024
- California 18,905
- Ohio 2,721
- Oklahoma 1,804
- Indiana 1,704
- New Mexico 1,428
- Florida 1,427
- Wyoming 1,285
- Georgia 1,104
- Pennsylvania 905
- Alabama 721
- Arkansas 569
- Missouri 539
- Iowa 464
- Mississippi 437
- Colorado 400
- Washington 338
- Texas 271
- Wisconsin 269
- North Carolina 254
- Minnesota 250
- West Virginia 230
- South Carolina 223
- Kentucky 218
- Delaware 185
- Montana 180
- Michigan 159
- Virginia 159
- Alaska 158
- Utah 157
- Tennessee 155
- Nebraska 150
- North Dakota 138
- Arizona 126
- Connecticut 122
- New York 115
- Maine 114
- Louisiana 113
- Illinois 109
- Idaho 91
- Nevada 88
- Hawaii 67
- Kansas 64
- New Hampshire 61
- South Dakota 59
- Maryland 58
- Massachusetts 52
- Oregon 35
- Rhode Island 29
- District of Columbia 25
- New Jersey 8
- Puerto Rico 5
- Vermont 4
Other years
Air-emissions stack tests recorded in 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-10-31 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | FAIRMEAD LANDFILL | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-31 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | HARTFORD, Hartford, CT | Pass | State |
| 2024-10-31 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-10-31 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-10-31 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-10-31 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-10-31 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-10-31 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2024-10-31 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-10-31 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-10-31 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2024-10-31 | PREFERRED MATERIALS, INC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | HILLSBOROUGH CTY. RESOURCE RECOVERY FAC. | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-31 | SOUTHWIRE COMPANY - CARROLLTON | CARROLLTON, Carroll, GA | Pass | State |
| 2024-10-31 | SOUTHWIRE COMPANY - CARROLLTON | CARROLLTON, Carroll, GA | Pass | State |
| 2024-10-31 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2024-10-31 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2024-10-31 | GLEN-GERY CORPORATION | ADEL (HISTORICAL), Dallas, IA | Pass | State |
| 2024-10-31 | SSAB IOWA INC — high-priority violation on file | MUSCATINE, Muscatine, IA | Fail | State |
| 2024-10-31 | VALERO RENEWABLE FUELS CO LLC-FT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2024-10-31 | MCCAIN FOODS USA INC | BURLEY, Cassia, ID | Pass | State |
| 2024-10-31 | MILNER BUTTE LANDFILL | BURLEY, Cassia, ID | Pass | State |
| 2024-10-31 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2024-10-31 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2024-10-31 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2024-10-31 | BONANZA BIOENERGY (AIR) | GARDEN CITY, Finney, KS | Pass | State |
| 2024-10-31 | FLORIDA GAS TRANSMISSION COMPANY LLC - EUNICE COMPRESSOR STATION #7 | EUNICE, Acadia, LA | Pass | State |
| 2024-10-31 | NE RENEWABLE POWER FITCHBURG LLC | WESTMINSTER, Worcester, MA | Pending | State |
| 2024-10-31 | EASTERN SANITARY LANDFILL | WHITE MARSH, Baltimore, MD | Pass | State |
| 2024-10-31 | DIODES US MANUFACTURING INCORPORATED | SOUTH PORTLAND, Cumberland, ME | Pass | State |
| 2024-10-31 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-10-31 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-10-31 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-10-31 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-10-31 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 1 | SPRINGFIELD, Greene, MO | Pass | State |
| 2024-10-31 | EVERGY INC -IATAN GENERATING STATION | WESTON, Platte, MO | Pass | State |
| 2024-10-31 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2024-10-31 | ARCHER DANIELS MIDLAND COMPANY (ADM) - ENDERLIN FACILITY - AQ | ENDERLIN, Ransom, ND | Pass | State |
| 2024-10-31 | BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ | WILLISTON, Williams, ND | Fail | State |
| 2024-10-31 | MIYAMURA COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-10-31 | TATER TOT 2 CTB 5 | MALAGA, Eddy, NM | Pass | State |
| 2024-10-31 | TATER TOT 2 CTB 5 | MALAGA, Eddy, NM | Pass | State |
| 2024-10-31 | EUNICE GAS PROCESSING PLANT — high-priority violation on file | EUNICE, Lea, NM | Pass | State |
| 2024-10-31 | NINA CORTEL COMPRESSOR STATION | MONUMENT, Lea, NM | Pass | State |
| 2024-10-31 | NINA CORTEL COMPRESSOR STATION | MONUMENT, Lea, NM | Pass | State |
| 2024-10-31 | DUTCHESS CO RESOURCE RECOVERY FACILITY | POUGHKEEPSIE, Dutchess, NY | Pass | State |
| 2024-10-31 | PEOPLES ELECTRIC COOP / CENTRAHOMA — high-priority violation on file | CENTRAHOMA, Coal, OK | Pass | State |
| 2024-10-31 | CONTINENTAL RESOURCES / DYESS 1 1H | LOCO, Stephens, OK | Pass | State |
| 2024-10-31 | CONTINENTAL RESOURCES / LOVE 1 26 23XH | DUNCAN, Stephens, OK | Pass | State |
| 2024-10-31 | NEXTERA RENEWABLE FUELS LLC/FREY FARM CRESWELL LDFL | CONESTOGA, Lancaster, PA | Pass | State |
| 2024-10-31 | NEW ENTERPRISE STONE AND LIME CO INC/JENKINS TWP | WILKES BARRE, Luzerne, PA | Pass | State |
| 2024-10-31 | UGI STORAGE CO/PALMER COMP STA | LAWRENCEVILLE, Tioga, PA | Pass | State |
| 2024-10-31 | SWN PROD CO LLC/GAYLORD 3H | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2024-10-31 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Fail | Local |
| 2024-10-31 | DOMTAR PAPER COMPANY, LLC | KINGSPORT, Sullivan, TN | Pass | State |
| 2024-10-31 | GUAJILLO CENTRAL FACILITY | WHITSETT, Atascosa, TX | Pass | State |
| 2024-10-31 | EAST LONGHORN CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2024-10-31 | EAST LONGHORN CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2024-10-31 | EAST LONGHORN CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2024-10-31 | EAST LONGHORN CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2024-10-31 | EAST LONGHORN CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2024-10-31 | RPC POWER | PLAINS, Yoakum, TX | N/A | State |
| 2024-10-31 | RPC POWER | PLAINS, Yoakum, TX | N/A | State |
| 2024-10-31 | RPC POWER | PLAINS, Yoakum, TX | N/A | State |
| 2024-10-31 | COLUMBIA GAS TRANSMISSION LLC - BICKERS | STANARDSVILLE, Greene, VA | Pass | State |
| 2024-10-31 | SIERRA PACIFIC IND.- SKAGIT LUMBER | MOUNT VERNON, Skagit, WA | Pass | Local |
| 2024-10-31 | CARDINAL FG COMPANY | WINLOCK, Lewis, WA | Pass | Local |
| 2024-10-31 | HARDEL MUTUAL PLYWOOD CORPORATION — high-priority violation on file | CHEHALIS, Lewis, WA | Pass | Local |
| 2024-10-31 | MOUNTAIN STATE CLEAN ENERGY, LLC, MAIDSVILLE | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2024-10-31 | FREWEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-31 | FREWEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-30 | WILLIAMS MOBILE BAY PRODUCER SERVICES, LLC | CODEN, Mobile, AL | Pass | State |
| 2024-10-30 | NUCOR TUSCALOOSA | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2024-10-30 | NUCOR TUSCALOOSA | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2024-10-30 | AERA ENERGY LLC | SAN ARDO, Monterey, CA | Pass | Local |
| 2024-10-30 | MITSUBISHI CHEMICAL CARBON FIBER AND COMPOSITES — high-priority violation on file | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2024-10-30 | REP PROCESSING LLC - PIERCE GAS PLANT | PIERCE, Weld, CO | Pass | State |
| 2024-10-30 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2024-10-30 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | HARTFORD, Hartford, CT | Pass | State |
| 2024-10-30 | CMC STEEL US, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-10-30 | CMC STEEL US, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-10-30 | CMC STEEL US, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-10-30 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-10-30 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.