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 |
|---|---|---|---|---|
| 2024-12-06 | INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2024-12-06 | STATE OF CALIFORNIA PRISON - SACRAMENTO | REPRESA, Sacramento, CA | Pass | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Fail | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2024-12-06 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Fail | Local |
| 2024-12-06 | TESORO REFINING MARKETING COMPANY LLC | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-06 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-06 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-06 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-06 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-06 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-12-06 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-06 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-06 | DEARBORN INDUSTRIAL GENERATION | DEARBORN, Wayne, MI | Pass | State |
| 2024-12-06 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Fail | State |
| 2024-12-06 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Pass | State |
| 2024-12-06 | CENTRAL MISSOURI SANITARY LANDFILL | SEDALIA, Pettis, MO | Fail | State |
| 2024-12-06 | PATHEON MANUFACTURING SERVICES LLC, PART OF THERMO FISHER SC | GREENVILLE, Pitt, NC | Pass | State |
| 2024-12-06 | RAMBO COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-12-06 | EOG RESOURCES, INC. - TOWE 29-12-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2024-12-06 | EOG RESOURCES, INC. - TOWE 29-12-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2024-12-06 | BCE MACH LLC / SOUTHERN STAR PAD B | EL RENO, Canadian, OK | Pass | State |
| 2024-12-06 | BLUE MOUNTAIN MIDSTREAM LLC / PREAKNESS COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2024-12-06 | BCE MACH III LLC / HUMPHREY 2 5H LNU 92 2HO LSEOU 10 2HO | DOVER, Kingfisher, OK | Pass | State |
| 2024-12-06 | GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file | CLATSKANIE, Clatsop, OR | Pass | State |
| 2024-12-06 | GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file | CLATSKANIE, Clatsop, OR | Pass | State |
| 2024-12-06 | GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file | CLATSKANIE, Clatsop, OR | Pass | State |
| 2024-12-06 | GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file | CLATSKANIE, Clatsop, OR | Pass | State |
| 2024-12-06 | TEXAS EASTERN TRANS LP/UNIONTOWN STA — high-priority violation on file | LEMONT FURNACE, Fayette, PA | Pass | State |
| 2024-12-06 | ALPACA ENERGY LLC/ELECTRIC GENERATING STA | CANTON, Bradford, PA | Pass | State |
| 2024-12-06 | DOMINION - REMINGTON CT STATION | REMINGTON, Fauquier, VA | Pass | State |
| 2024-12-06 | APPALACHIA MIDSTREAM SERVICES, L.L.C., BUFFALO STATION | BETHANY, Brooke, WV | Pass | State |
| 2024-12-06 | ROXUL USA INC., RAN FACILITY | RANSON, Jefferson, WV | Fail | State |
| 2024-12-05 | GP CELLULOSE ALABAMA RIVER CELLULOSE LLC | PERDUE HILL, Monroe, AL | Pass | State |
| 2024-12-05 | GP CELLULOSE ALABAMA RIVER CELLULOSE LLC | PERDUE HILL, Monroe, AL | Pass | State |
| 2024-12-05 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-12-05 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2024-12-05 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2024-12-05 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2024-12-05 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2024-12-05 | DESOTO GATHERING COMPANY LLC - YELLOWSTONE CPF-2 | QUITMAN, Van Buren, AR | Pass | State |
| 2024-12-05 | CRESTONE PEAK - MUSTANG BOOSTER STATION — high-priority violation on file | AURORA, Adams, CO | Pass | State |
| 2024-12-05 | CRESTONE PEAK - GRANDE 4-65 20-19 NORTH | AURORA, Arapahoe, CO | Fail | State |
| 2024-12-05 | CRESTONE PEAK - GRANDE 4-65 20-19 NORTH | AURORA, Arapahoe, CO | Fail | State |
| 2024-12-05 | CRESTONE PEAK - GRANDE 4-65 20-19 NORTH | AURORA, Arapahoe, CO | Fail | State |
| 2024-12-05 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2024-12-05 | HIGHPOINT - PETERSON 5-63-30 SWNE | KERSEY 2.9 MI. E OF, Weld, CO | Pass | State |
| 2024-12-05 | PALM ENERGY LLC | BRISTOL, Hartford, CT | Pass | State |
| 2024-12-05 | PALM ENERGY LLC | BRISTOL, Hartford, CT | Pass | State |
| 2024-12-05 | COVIDIEN LP | NORTH HAVEN, New Haven, CT | Pass | State |
| 2024-12-05 | GROWER DIRECT, INC | SOMERS, Tolland, CT | Pass | State |
| 2024-12-05 | GROWER DIRECT, INC | SOMERS, Tolland, CT | Pass | State |
| 2024-12-05 | TPSI TERMINALS LLC | FORT LAUDERDALE, Broward, FL | Pass | State |
| 2024-12-05 | TAMPA ELECTRIC COMPANY (TEC) | GIBSONTON, Hillsborough, FL | Pass | State |
| 2024-12-05 | CATALENT PHARMA SOLUTIONS, LLC | SAINT PETERSBURG, Pinellas, FL | Pass | State |
| 2024-12-05 | DUVAL ASPHALT PRODUCTS, INC | GREEN COVE SPRINGS, Clay, FL | Pass | State |
| 2024-12-05 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2024-12-05 | NORTHERN NATURAL GAS CO-GUTHRE CENTER | GUTHRIE CENTER (HISTORICAL), Guthrie, IA | Pass | State |
| 2024-12-05 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Pass | State |
| 2024-12-05 | VALERO RENEWABLE FUELS COMPANY. LLC D/B/A VALERO LAKOTA PLANT — high-priority violation on file | LAKOTA, Kossuth, IA | Pass | State |
| 2024-12-05 | KENT NUTRITION GROUP - SHELDON | SHELDON, Sioux, IA | Pass | State |
| 2024-12-05 | RUVEON - SODA SPRINGS PLANT (TV FACILITY) | SODA SPRINGS, Caribou, ID | Pass | State |
| 2024-12-05 | PEOPLES GAS LIGHT & COKE CO | FISHER, Champaign, IL | Pass | State |
| 2024-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2024-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2024-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2024-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2024-12-05 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2024-12-05 | CARMEUSE LIME INCORPORATED — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2024-12-05 | LSC COMMUNICATIONS BOOK LLC — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2024-12-05 | NUCOR STEEL BRANDENBURG | BRANDENBURG, Meade, KY | Pass | State |
| 2024-12-05 | TREW STONE, LLC (PLANT #4) | SPRINGFIELD, Hampden, MA | Pass | State |
| 2024-12-05 | STOP & SHOP WAREHOUSE DISTRIBUTION CTR | FREETOWN, Bristol, MA | Pass | U.S. EPA |
| 2024-12-05 | BLACK OAK POWER PRODUCERS LLC | HARTVILLE, Wright, MO | Pass | State |
| 2024-12-05 | BLACK OAK POWER PRODUCERS LLC | HARTVILLE, Wright, MO | Pass | State |
| 2024-12-05 | CHEMOURS COMPANY - FAYETTEVILLE WORKS | FAYETTEVILLE, Bladen, NC | Pass | State |
| 2024-12-05 | WHITE STREET RENEWABLES, LLC | GREENSBORO, Guilford, NC | Pass | State |
| 2024-12-05 | TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC | LIBERTY, Randolph, NC | Pass | State |
| 2024-12-05 | MINN-DAK FARMERS COOPERATIVE (MDFC) - WAHPETON PLANT - AQ | WAHPETON, Richland, ND | Pass | State |
| 2024-12-05 | ST. PAUL'S SCHOOL | CONCORD, Merrimack, NH | Pass | State |
| 2024-12-05 | ST. PAUL'S SCHOOL | CONCORD, Merrimack, NH | Pass | State |
| 2024-12-05 | BRONCO COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-12-05 | BRONCO COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-12-05 | CASA BONITA COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.