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 |
|---|---|---|---|---|
| 2024-10-24 | HANWHA Q CELLS GEORGIA, INC. — high-priority violation on file | WHITE, Bartow, GA | Pass | State |
| 2024-10-24 | HANWHA Q CELLS GEORGIA, INC. — high-priority violation on file | WHITE, Bartow, GA | Pass | State |
| 2024-10-24 | HANWHA Q CELLS GEORGIA, INC. — high-priority violation on file | WHITE, Bartow, GA | Pass | State |
| 2024-10-24 | STERILIZATION SERVICES OF GEORGIA | ATLANTA, Fulton, GA | Pass | State |
| 2024-10-24 | STERILIZATION SERVICES OF GEORGIA | ATLANTA, Fulton, GA | Pass | State |
| 2024-10-24 | HYALUS, INC. | HAWKINSVILLE, Pulaski, GA | Pass | State |
| 2024-10-24 | BLACKTOP SERVICE CO-DAKOTA CITY | DAKOTA CITY, Humboldt, IA | Pass | State |
| 2024-10-24 | WEST POINT RNG LLC | WENDELL, Gooding, ID | Fail | State |
| 2024-10-24 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Fail | State |
| 2024-10-24 | NICOR GAS | LEXINGTON, McLean, IL | Pass | State |
| 2024-10-24 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-24 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-24 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-24 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-24 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-24 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-24 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | THOMASTON, Knox, ME | Pass | State |
| 2024-10-24 | ANDERSEN CORPORATION | BAYPORT, Washington, MN | Pass | State |
| 2024-10-24 | NUCOR STEEL SEDALIA LLC | SEDALIA, Pettis, MO | Pass | State |
| 2024-10-24 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2024-10-24 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2024-10-24 | WILLISTON BASIN - HATHAWAY STATION | HATHAWAY, Rosebud, MT | Pass | State |
| 2024-10-24 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2024-10-24 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2024-10-24 | NEBRASKA CORN PROCESSING LLC — high-priority violation on file | CAMBRIDGE, Furnas, NE | Pass | State |
| 2024-10-24 | KAAPA PARTNERS AURORA LLC — high-priority violation on file | AURORA, Hamilton, NE | Fail | State |
| 2024-10-24 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-24 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-24 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-24 | CADILLAC COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-10-24 | RJ BOOSTER STATION | LOCO HILLS, Eddy, NM | Pass | State |
| 2024-10-24 | RJ BOOSTER STATION | LOCO HILLS, Eddy, NM | Pass | State |
| 2024-10-24 | WALLEYE POWER, LLC, BAY SHORE PLANT | OREGON, Lucas, OH | Pass | State |
| 2024-10-24 | WALLEYE POWER, LLC, BAY SHORE PLANT | OREGON, Lucas, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | DTM UTICA, LLC - BELLE VALLEY COMPRESSOR STATION | BELLE VALLEY, Noble, OH | Pass | State |
| 2024-10-24 | CITY OF HAMILTON SOUTH WATER PLANT | FAIRFIELD, Butler, OH | Pass | State |
| 2024-10-24 | CITY OF HAMILTON SOUTH WATER PLANT | FAIRFIELD, Butler, OH | Pass | State |
| 2024-10-24 | CONTINENTAL RESOURCES / SISKO 1 8 5XH | ALEX, Grady, OK | Pass | State |
| 2024-10-24 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2024-10-24 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2024-10-24 | CONTINENTAL RESOURCES / Z 21 2 17 8XHW LAMBRECHT 3 17 20XHW | MIDDLEBERG, Grady, OK | Pass | State |
| 2024-10-24 | MILAN ENERGY LLC/ELECTRIC GENERATING STATION | MILAN, Bradford, PA | Pass | State |
| 2024-10-24 | BKV OPERATING LLC/BAKER WEST COMPRESSOR STATION | FORREST LAKE TWP, Susquehanna, PA | Pass | State |
| 2024-10-24 | NG ADVANTAGE/SPRINGVILLE — high-priority violation on file | SPRINGVILLE, Susquehanna, PA | Fail | State |
| 2024-10-24 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-10-24 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-10-24 | PACIFICORP LAKESIDE (SUMMIT VINEYARD) | VINEYARD, Utah, UT | Pass | State |
| 2024-10-24 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2024-10-24 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2024-10-24 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-10-24 | FERNDALE STORAGE TERMINAL | FERNDALE, Whatcom, WA | Pending | Local |
| 2024-10-24 | UNIROYAL GLOBAL ENGINEERED PRODUCTS LLC — high-priority violation on file | STOUGHTON, Dane, WI | Fail | State |
| 2024-10-24 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-24 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-23 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2024-10-23 | ROGERS GROUP INC — high-priority violation on file | HOLLYWOOD, Jackson, AL | Pass | State |
| 2024-10-23 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-23 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-23 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-23 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | CALERA, Shelby, AL | Pass | State |
| 2024-10-23 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | CALERA, Shelby, AL | Pass | State |
| 2024-10-23 | ALABAMA POWER COMPANY (MILLER POWER PLANT) | QUINTON, Jefferson, AL | Pass | Local |
| 2024-10-23 | APACHE NITROGEN PRODUCTS INC — high-priority violation on file | SAINT DAVID, Cochise, AZ | Pass | State |
| 2024-10-23 | PG&E- HINKLEY | HINKLEY, San Bernardino, CA | Pass | Local |
| 2024-10-23 | PG&E- HINKLEY | HINKLEY, San Bernardino, CA | Pass | Local |
| 2024-10-23 | PG&E- HINKLEY | HINKLEY, San Bernardino, CA | Pass | Local |
| 2024-10-23 | PG&E- HINKLEY | HINKLEY, San Bernardino, CA | Pass | Local |
| 2024-10-23 | EL SEGUNDO ENERGY CENTER LLC | EL SEGUNDO, Los Angeles, CA | Pass | Local |
| 2024-10-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | NORTH COUNTY SANITARY LANDFILL | LODI, San Joaquin, CA | Pass | Local |
| 2024-10-23 | TEP ROCKY MTN - RU CLOUGH 104 | RIFLE 2.0 MI. W OF, Garfield, CO | Pass | State |
| 2024-10-23 | TEP ROCKY MTN - SG 31-32 PRODUCTION PIT | PARACHUTE 4.2 MI. SW OF, Garfield, CO | Pass | State |
| 2024-10-23 | PLAINS END, LLC | ARVADA, Jefferson, CO | Pass | State |
| 2024-10-23 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | DACONO AREA, Weld, CO | Pass | State |
| 2024-10-23 | BONANZA CREEK - STATE ANTELOPE CPF O-1 | KERSEY 14.0 MI. E OF, Weld, CO | Fail | State |
| 2024-10-23 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-23 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-23 | BUCKEYE TERMINALS, LLC | TAMPA, Hillsborough, FL | Pass | State |
| 2024-10-23 | STERILIZATION SERVICES OF GEORGIA | ATLANTA, Fulton, GA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.