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 |
|---|---|---|---|---|
| 2023-12-26 | SUPERIOR MIDSTREAM LLC / CASHION NORTH BOOSTER STATION (WASWO) | CASHION, Logan, OK | Pass | State |
| 2023-12-26 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2023-12-23 | NUCOR STEEL FLORIDA, INC. | FROSTPROOF, Polk, FL | Pass | State |
| 2023-12-23 | DOMINION - LADYSMITH CT STATION | WOODFORD, Caroline, VA | Pass | State |
| 2023-12-22 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2023-12-22 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2023-12-22 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Fail | State |
| 2023-12-22 | ARKANSAS BIOENERGY, LLC - RUSSELLVILLE | RUSSELLVILLE, Pope, AR | Pass | State |
| 2023-12-22 | WESTLAKE ROYAL ROOFING LLC | CORONA, Riverside, CA | N/A | Local |
| 2023-12-22 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2023-12-22 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2023-12-22 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2023-12-22 | MONMOUTH CNTY RECLAMATION CENTER | TINTON FALLS, Monmouth, NJ | Pass | State |
| 2023-12-22 | CORNING DIESEL MANUFACTURING FACILITY | PAINTED POST, Steuben, NY | Pass | State |
| 2023-12-22 | LUCK STONE - FAIRFIELD I-77 DEVELOPMENT | RIDGEWAY, Fairfield, SC | Pass | State |
| 2023-12-22 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2023-12-22 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2023-12-21 | DEMOPOLIS PELLETS, LLC | DEMOPOLIS, Marengo, AL | Pass | State |
| 2023-12-21 | BAKELITE CHEMICALS LLC. | CROSSETT, Ashley, AR | Pass | State |
| 2023-12-21 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2023-12-21 | AIR PRODUCTS MANUFACTURING, LLC — high-priority violation on file | PARAMOUNT, Los Angeles, CA | Pass | Local |
| 2023-12-21 | PASADENA CITY, DWP (EIS USE) | PASADENA, Los Angeles, CA | Pass | Local |
| 2023-12-21 | BURBANK CITY, BURBANK WATER & POWER SCPP | BURBANK, Los Angeles, CA | Pass | Local |
| 2023-12-21 | COLTON POWER, LP | COLTON, San Bernardino, CA | Pass | Local |
| 2023-12-21 | COLTON POWER, LP | COLTON, San Bernardino, CA | Pass | Local |
| 2023-12-21 | SDG&E CUYAMACA PEAK ENERGY PLANT | EL CAJON, San Diego, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | O'NEILL BEVERAGES CO LLC | PARLIER, Fresno, CA | Pass | Local |
| 2023-12-21 | PEOPLES GAS LIGHT & COKE CO | FISHER, Champaign, IL | Pass | State |
| 2023-12-21 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2023-12-21 | PURDUE UNIVERSITY — high-priority violation on file | WEST LAFAYETTE, Tippecanoe, IN | Pass | State |
| 2023-12-21 | NOVELIS | BEREA, Madison, KY | Pass | State |
| 2023-12-21 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2023-12-21 | MICHIGAN SUGAR COMPANY - SEBEWAING FACTORY — high-priority violation on file | SEBEWAING, Huron, MI | Pending | State |
| 2023-12-21 | FCA US LLC STERLING HEIGHTS ASSEMBLY PLANT | STERLING HEIGHTS, Macomb, MI | Pending | State |
| 2023-12-21 | MUSKEGON COUNTY SOLID WASTE FACILITY | RAVENNA, Muskegon, MI | Pending | State |
| 2023-12-21 | AMERICAN CRYSTAL SUGAR - EAST GRAND FORKS | EAST GRAND FORKS, Polk, MN | Pass | State |
| 2023-12-21 | AMERICAN CRYSTAL SUGAR - EAST GRAND FORKS | EAST GRAND FORKS, Polk, MN | Pass | State |
| 2023-12-21 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2023-12-21 | COLLINS TREE SERVICE PIT | NEWPORT, Carteret, NC | Pass | State |
| 2023-12-21 | KAO SPECIALTIES AMERICAS, LLC | HIGH POINT, Guilford, NC | Pass | State |
| 2023-12-21 | DAKOTA GASIFICATION COMPANY (DGC) - GREAT PLAINS SYNFUELS PLANT - AQ | BEULAH, Mercer, ND | Pass | State |
| 2023-12-21 | CARGILL INC — high-priority violation on file | BLAIR, Washington, NE | N/A | State |
| 2023-12-21 | GENIE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-12-21 | JAMES HARDIE BUILDING PRODUCTS, INC. | MCCARRAN, Storey, NV | Pass | State |
| 2023-12-21 | AMRIZE RAVENA FACILITY | COEYMANS, Albany, NY | Pass | State |
| 2023-12-21 | ASCENT RESOURCES - UTICA LLC - SHIPMAN WLS GR | LORE CITY, Guernsey, OH | Pass | State |
| 2023-12-21 | ASCENT RESOURCES - UTICA LLC - SHIPMAN WLS GR | LORE CITY, Guernsey, OH | Pass | State |
| 2023-12-21 | ASCENT RESOURCES - UTICA LLC - SHIPMAN WLS GR | LORE CITY, Guernsey, OH | Pass | State |
| 2023-12-21 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2023-12-21 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2023-12-21 | MARKWEST OKLAHOMA GAS CO LLC / MYER MOUNTAIN COMPRESSOR STATION — high-priority violation on file | SCIPIO, Pittsburg, OK | Pass | State |
| 2023-12-21 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2023-12-21 | TENSION INTL / KING OF PRUSSIA | KING OF PRUSSIA, Montgomery, PA | Pass | State |
| 2023-12-21 | SWN PROD CO FIONDI SITE COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2023-12-21 | CPV FAIRVIEW LLC/FAIRVIEW ENERGY CTR — high-priority violation on file | JOHNSTOWN, Cambria, PA | Pass | State |
| 2023-12-21 | WARRINER, S PAD 1 — high-priority violation on file | MONTROSE, Susquehanna, PA | Pass | State |
| 2023-12-21 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Fail | State |
| 2023-12-21 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | HARLEYVILLE, Dorchester, SC | Fail | State |
| 2023-12-21 | TENNESSEE ALUMINUM PROCESSORS,INC. | MOUNT PLEASANT, Maury, TN | Pass | State |
| 2023-12-21 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2023-12-21 | GAINESVILLE CROSSING DATA CAMPUS - GCDC | GAINESVILLE, Prince William, VA | Pass | State |
| 2023-12-21 | HANSEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES CO.) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-21 | HANSEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES CO.) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-21 | HANSEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES CO.) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-21 | HANSEN LAKE COMPRESSOR STATION (WILLIAMS FIELD SERVICES CO.) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-12-20 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2023-12-20 | DEMOPOLIS PELLETS, LLC | DEMOPOLIS, Marengo, AL | Pass | State |
| 2023-12-20 | CARMEUSE LIME & STONE INC | SAGINAW, Shelby, AL | Pass | State |
| 2023-12-20 | WESTERN FOODS DELTA REGION | PINE BLUFF, Jefferson, AR | Pass | State |
| 2023-12-20 | STATE OF CALIFORNIA PRISON - SACRAMENTO | REPRESA, Sacramento, CA | Pass | Local |
| 2023-12-20 | NEW NGC, INC. | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2023-12-20 | COLTON POWER, LP | COLTON, San Bernardino, CA | Pass | Local |
| 2023-12-20 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-20 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-20 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-20 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-20 | URBAN MINING CT LLC | BEACON FALLS, New Haven, CT | Pass | State |
| 2023-12-20 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2023-12-20 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Pass | State |
| 2023-12-20 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2023-12-20 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2023-12-20 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2023-12-20 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2023-12-20 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2023-12-20 | REDDELL FIELD CENTRAL FACILITY | REDDELL, Evangeline, LA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their stack tests in 2023. It lists 26,911 stack tests recorded nationwide in 2023.