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 |
|---|---|---|---|---|
| 2023-12-15 | RAZORBACK GATHERING COMPANY, LLC. - JUDSONIA CPF 1 | JUDSONIA, White, AR | Pass | State |
| 2023-12-15 | RAZORBACK GATHERING COMPANY, LLC. - JUDSONIA CPF 1 | JUDSONIA, White, AR | Pass | State |
| 2023-12-15 | RIV CO WASTE MGMT BADLANDS LANDFILL | MORENO VALLEY, Riverside, CA | Pending | Local |
| 2023-12-15 | TST INC | FONTANA, San Bernardino, CA | Pass | Local |
| 2023-12-15 | CRESTWOOD WEST COAST LLC | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CRESTWOOD WEST COAST LLC | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CRESTWOOD WEST COAST LLC | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CRESTWOOD WEST COAST LLC | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-15 | FLORIDA POWER & LIGHT COMPANY | FORT LAUDERDALE, Broward, FL | Pass | State |
| 2023-12-15 | FLORIDA POWER & LIGHT COMPANY | FORT LAUDERDALE, Broward, FL | Pass | State |
| 2023-12-15 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-12-15 | HAMAKUA ENERGY | HONOKAA, Hawaii, HI | Pass | State |
| 2023-12-15 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Fail | State |
| 2023-12-15 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2023-12-15 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2023-12-15 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2023-12-15 | POET BIOREFINING IOWA FALLS, LLC — high-priority violation on file | IOWA FALLS, Hardin, IA | Pass | State |
| 2023-12-15 | PREMIER LLC 00652 | EMMETT, Gem, ID | Pass | State |
| 2023-12-15 | INVENERGY NELSON LLC | ROCK FALLS, Lee, IL | Pass | State |
| 2023-12-15 | CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO, Lake, IN | Pass | State |
| 2023-12-15 | MONTPELIER GENERATING STATION LLC — high-priority violation on file | PONETO, Wells, IN | Pass | State |
| 2023-12-15 | MONTPELIER GENERATING STATION LLC — high-priority violation on file | PONETO, Wells, IN | Pass | State |
| 2023-12-15 | BIG RIVERS ELECTRIC CORP - DB WILSON STATION — high-priority violation on file | CENTERTOWN, Ohio, KY | Pass | State |
| 2023-12-15 | CAMERON LNG LLC - CAMERON LNG FACILITY — high-priority violation on file | HACKBERRY, Cameron, LA | Pass | State |
| 2023-12-15 | VALERO REFINING - NEW ORLEANS LLC - ST CHARLES REFINERY | NORCO, St. Charles, LA | Pass | State |
| 2023-12-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2023-12-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2023-12-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2023-12-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2023-12-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2023-12-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2023-12-15 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2023-12-15 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2023-12-15 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2023-12-15 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2023-12-15 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2023-12-15 | SUPREME COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2023-12-15 | SUPREME COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2023-12-15 | NYC-HH - KINGS COUNTY HOSPITAL CENTER | BROOKLYN, Kings, NY | Pass | State |
| 2023-12-15 | GREEN RIDGE RDF | NORTHUMBERLAND, Saratoga, NY | Pass | State |
| 2023-12-15 | WOLFSPEED - MOHAWK VALLEY FAB | MARCY, Oneida, NY | Pass | State |
| 2023-12-15 | INEOS PIGMENTS USA INC., ASHTABULA COMPLEX PLANT 1 | ASHTABULA, Ashtabula, OH | Pass | State |
| 2023-12-15 | CLEVELAND-CLIFFS STEEL CORPORATION — high-priority violation on file | MIDDLETOWN, Butler, OH | Fail | State |
| 2023-12-15 | COLUMBIA GAS TRANS CORP/FORKS TWP FAC EASTON CTA | EASTON, Northampton, PA | Pass | State |
| 2023-12-15 | GREYLOCK MIDSTREAM LLC/KUHL-SKIB COMP STA | JEFFERSON, Greene, PA | Pass | State |
| 2023-12-15 | REGENCY MARCELLUS GAS GATHERING LLC/ AUBURN STA | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2023-12-15 | HENSLEY INDUSTRIES — high-priority violation on file | DALLAS, Dallas, TX | Pass | State |
| 2023-12-15 | HOLCIM TEXAS | MIDLOTHIAN, Ellis, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BEAUMONT CHEMICAL PLANT | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-12-15 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | Pass | State |
| 2023-12-15 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2023-12-15 | CENTRAL VALLEY WATER RECLAMATION | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2023-12-15 | HAMPTON/NASA STEAM PLANT | HAMPTON, Hampton (city), VA | Pass | State |
| 2023-12-15 | ARMSTRONG WORLD INDUSTRIES, INC., MILLWOOD | MILLWOOD, Jackson, WV | Pass | State |
| 2023-12-14 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2023-12-14 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2023-12-14 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2023-12-14 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2023-12-14 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2023-12-14 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2023-12-14 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2023-12-14 | CMBIOMASS — high-priority violation on file | JACKSON, Clarke, AL | Pass | State |
| 2023-12-14 | HENRY BRICK COMPANY, INC. | SELMA, Dallas, AL | Pass | State |
| 2023-12-14 | HENRY BRICK COMPANY, INC. | SELMA, Dallas, AL | Pass | State |
| 2023-12-14 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2023-12-14 | WESTERN FOODS DELTA REGION | PINE BLUFF, Jefferson, AR | Pass | State |
| 2023-12-14 | ACT HOLDINGS, INC. | MOUNT PLEASANT, Izard, AR | Pass | State |
| 2023-12-14 | ACT HOLDINGS, INC. | MOUNT PLEASANT, Izard, AR | Pass | State |
| 2023-12-14 | LA CO. SANITATION DIST | CARSON, Los Angeles, CA | Pass | Local |
| 2023-12-14 | LA CO. SANITATION DIST | CARSON, Los Angeles, CA | Pass | Local |
| 2023-12-14 | LA CO. SANITATION DIST | CARSON, Los Angeles, CA | Pass | Local |
| 2023-12-14 | LA CO. SANITATION DIST | CARSON, Los Angeles, CA | Pass | Local |
| 2023-12-14 | LA CO. SANITATION DIST | CARSON, Los Angeles, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-14 | NYDIG DFM - GREGORY 0780 1-9H | WALDEN 11.2 MI. N OF, Jackson, CO | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.