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 |
|---|---|---|---|---|
| 2024-11-18 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | NEENAH FOUNDRY COMPANY | MEDLEY, Miami-Dade, FL | Pass | State |
| 2024-11-18 | KRAFT HEINZ FOODS COMPANY | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-11-18 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2024-11-18 | MARVIN WINDOWS AND DOORS | WARROAD, Roseau, MN | Pass | State |
| 2024-11-18 | TRONOX LLC, HAMILTON FACILITY | HAMILTON, Monroe, MS | Pass | State |
| 2024-11-18 | CITY OF LAURINBURG - YARD WASTE BURN SITE | LAURINBURG, Scotland, NC | Pending | State |
| 2024-11-18 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pending | Local |
| 2024-11-18 | ASCENT RESOURCES-UTICA, LLC - BROWN WSG GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-18 | ASCENT RESOURCES-UTICA, LLC - BROWN WSG GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-18 | ASCENT RESOURCES-UTICA, LLC - BROWN WSG GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-18 | ASCENT RESOURCES - UTICA LLC - WALDO MNR GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-18 | ASCENT RESOURCES - UTICA LLC - WALDO MNR GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-18 | ASCENT RESOURCES - UTICA LLC - WALDO MNR GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-18 | TAIT ELECTRIC GENERATING STATION | DAYTON, Montgomery, OH | Pass | State |
| 2024-11-18 | ET GATHERING PROCESSING LLC / SCHROCK COMPRESSOR STATION | THOMAS, Custer, OK | Pass | State |
| 2024-11-18 | ET GATHERING PROCESSING LLC / SCHROCK COMPRESSOR STATION | THOMAS, Custer, OK | Pass | State |
| 2024-11-18 | MARKWEST OKLAHOMA GAS CO LLC / BREWER COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2024-11-18 | XTO ENERGY INC / BRALLEY CDP | MADILL, Marshall, OK | Pass | State |
| 2024-11-18 | XTO ENERGY INC / BRALLEY CDP | MADILL, Marshall, OK | Pass | State |
| 2024-11-18 | MARKWEST OKLAHOMA GAS CO LLC / KERNS CANAAN POD 5 COMPRESSOR STATION | MCALESTER, Pittsburg, OK | Pass | State |
| 2024-11-18 | EXPAND OPERATING LLC/HOLTAN SUS WELLPAD | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2024-11-18 | EQT ARTEMIS MIDSTREAM LLC/ROGERS COMP STA — high-priority violation on file | NEW KENSINGTON, Westmoreland, PA | Pass | State |
| 2024-11-18 | WCAA UPSTREAM LLC/GRAHAM WELLPAD | DARRAGH, Westmoreland, PA | Pass | State |
| 2024-11-18 | EXXONMOBIL BEAUMONT REFINERY — high-priority violation on file | BEAUMONT, Jefferson, TX | Pass | State |
| 2024-11-18 | EXXONMOBIL BEAUMONT REFINERY — high-priority violation on file | BEAUMONT, Jefferson, TX | Pass | State |
| 2024-11-18 | BEAUMONT GAS TO GASOLINE PLANT — high-priority violation on file | BEAUMONT, Jefferson, TX | Pass | State |
| 2024-11-18 | INV NYLON CHEMICALS AMERICAS ORANGE SITE — high-priority violation on file | ORANGE, Orange, TX | Pass | State |
| 2024-11-18 | INV NYLON CHEMICALS AMERICAS ORANGE SITE — high-priority violation on file | ORANGE, Orange, TX | Pass | State |
| 2024-11-18 | ARMSTRONG WORLD INDUSTRIES, INC., MILLWOOD | MILLWOOD, Jackson, WV | Pass | State |
| 2024-11-17 | PACIFICORP HUNTER | UTAH, Undetermined, UT | Pass | State |
| 2024-11-17 | PACIFICORP HUNTER | UTAH, Undetermined, UT | Pass | State |
| 2024-11-17 | PACIFICORP HUNTER | UTAH, Undetermined, UT | Pass | State |
| 2024-11-16 | TEXAS EASTERN TRANS LP/PERULACK STA | EAST WATERFORD, Juniata, PA | Pass | State |
| 2024-11-15 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-15 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-15 | HIGHLAND PELLETS, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2024-11-15 | HIGHLAND PELLETS, LLC | PINE BLUFF, Jefferson, AR | Fail | State |
| 2024-11-15 | SAN JOAQUIN GENERAL HOSPITAL | FRENCH CAMP, San Joaquin, CA | Pass | Local |
| 2024-11-15 | SAN JOAQUIN GENERAL HOSPITAL | FRENCH CAMP, San Joaquin, CA | Pass | Local |
| 2024-11-15 | SAN JOAQUIN GENERAL HOSPITAL | FRENCH CAMP, San Joaquin, CA | Pass | Local |
| 2024-11-15 | SAN JOAQUIN GENERAL HOSPITAL | FRENCH CAMP, San Joaquin, CA | Pass | Local |
| 2024-11-15 | ETHOSENERGY ACCESSORIES AND COMPONENTS, LLC | EAST WINDSOR, Hartford, CT | Fail | State |
| 2024-11-15 | U.S. GSA CENTRAL HEATING PLANT — high-priority violation on file | WASHINGTON, District of Columbia, DC | Fail | State |
| 2024-11-15 | NEW HOPE POWER COMPANY | SOUTH BAY, Palm Beach, FL | Pass | State |
| 2024-11-15 | NEW HOPE POWER COMPANY | SOUTH BAY, Palm Beach, FL | Pass | State |
| 2024-11-15 | NEW HOPE POWER COMPANY | SOUTH BAY, Palm Beach, FL | Pass | State |
| 2024-11-15 | NEW HOPE POWER COMPANY | SOUTH BAY, Palm Beach, FL | Pass | State |
| 2024-11-15 | NEW HOPE POWER COMPANY | SOUTH BAY, Palm Beach, FL | Pass | State |
| 2024-11-15 | NEW HOPE POWER COMPANY | SOUTH BAY, Palm Beach, FL | Pass | State |
| 2024-11-15 | MECO - MAALAEA | MAALAEA, Maui, HI | Pass | State |
| 2024-11-15 | ILLINOIS CEMENT CO | LASALLE, La Salle, IL | Pass | State |
| 2024-11-15 | EAGLE WASHINGTON HOLDING COMPANY LLC | WASHINGTON, Daviess, IN | Pass | State |
| 2024-11-15 | EAGLE WASHINGTON HOLDING COMPANY LLC | WASHINGTON, Daviess, IN | Pass | State |
| 2024-11-15 | GARFIELD FACILITY LLC — high-priority violation on file | MUNCIE, Delaware, IN | Pass | State |
| 2024-11-15 | SOULBRAIN MI INCORPORATED | KOKOMO, Howard, IN | Pass | State |
| 2024-11-15 | NPX ONE | INDIANAPOLIS, Marion, IN | Pass | State |
| 2024-11-15 | PREGIS INNOVATIVE PACKAGING LLC | PLYMOUTH, Marshall, IN | Pass | State |
| 2024-11-15 | KAISER ALUMINUM WARRICK LLC — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2024-11-15 | ITW PERFORMANCE POLYMERS | DANVERS, TOWN OF, Essex, MA | Pass | State |
| 2024-11-15 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-11-15 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-11-15 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-11-15 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-11-15 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-11-15 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | CAPITAL MATERIALS (PORT-0445) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-15 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-15 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-15 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-15 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-11-15 | EOG - EL JEFE LGL STATION | JAL, Lea, NM | Pass | State |
| 2024-11-15 | CLEVELAND-CLIFFS WARREN | WARREN, Trumbull, OH | Pass | State |
| 2024-11-15 | MARKWEST OKLAHOMA GAS CO LLC / BUFFALO CREEK PROCESSING PLANT — high-priority violation on file | SAYRE, Beckham, OK | Pass | State |
| 2024-11-15 | XTO ENERGY INC / ERPAL 1 13 JORDAN 1 12H PRODUCTION SI | SPRINGER, Carter, OK | Pass | State |
| 2024-11-15 | SANGUINE GAS EXPLORATION LLC / DEER CREEK 1 29HR | WEATHERFORD, Custer, OK | Pass | State |
| 2024-11-15 | XTO ENERGY INC / TOMMY 1 3H34 PRODUCTION SITE | MARIETTA, Love, OK | Pass | State |
| 2024-11-15 | PEOPLES NATURAL GAS CO LLC/ROARING RUN STA | APOLLO, Armstrong, PA | Pass | State |
| 2024-11-15 | BOEING SPACE CENTER | KENT, King, WA | Pass | Local |
| 2024-11-15 | BOEING SPACE CENTER | KENT, King, WA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.