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 |
|---|---|---|---|---|
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | CONCORD ENERGY, LLC | CONCORD, Cabarrus, NC | Pass | State |
| 2024-10-15 | B. V. HEDRICK GRAVEL AND SAND COMPANY, LAKE NORMAN QUARRY | STANLEY, Lincoln, NC | Pass | State |
| 2024-10-15 | AUSTIN QUALITY FOODS, INC. | CARY, Wake, NC | Pass | State |
| 2024-10-15 | INGREDION, INC. — high-priority violation on file | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2024-10-15 | INGREDION, INC. — high-priority violation on file | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2024-10-15 | THARALDSON ETHANOL PLANT I, LLC - AQ | CASSELTON, Cass, ND | Pass | State |
| 2024-10-15 | THARALDSON ETHANOL PLANT I, LLC - AQ | CASSELTON, Cass, ND | Pass | State |
| 2024-10-15 | CASSIUS PAD W | LOVING, Eddy, NM | Pass | State |
| 2024-10-15 | GHOST COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-10-15 | GHOST COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-10-15 | INNOVATIVE / FULTON | JOHNSTOWN(T), Fulton, NY | Pass | State |
| 2024-10-15 | ULTIUM CELLS LLC | WARREN, Trumbull, OH | Pass | State |
| 2024-10-15 | ASCENT RESOURCES - UTICA LLC - TRUCHAN NE WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-15 | ASCENT RESOURCES - UTICA LLC - TRUCHAN NE WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-15 | ASCENT RESOURCES - UTICA LLC - TRUCHAN NE WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-15 | ASCENT RESOURCES-UTICA LLC -CRAVAT COAL SHC HR WELL PAD | CADIZ, Harrison, OH | Pass | State |
| 2024-10-15 | ASCENT RESOURCES-UTICA LLC -CRAVAT COAL SHC HR WELL PAD | CADIZ, Harrison, OH | Pass | State |
| 2024-10-15 | ASCENT RESOURCES-UTICA LLC -CRAVAT COAL SHC HR WELL PAD | CADIZ, Harrison, OH | Pass | State |
| 2024-10-15 | CRAIG MILLER PAD 952413 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2024-10-15 | CRAIG MILLER PAD 952413 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2024-10-15 | CRAIG MILLER PAD 952413 | BEALLSVILLE, Monroe, OH | Pass | State |
| 2024-10-15 | SAWYERS PAD 952878 | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-10-15 | SAWYERS PAD 952878 | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-10-15 | SAWYERS PAD 952878 | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-10-15 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Fail | State |
| 2024-10-15 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-10-15 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-10-15 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-10-15 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-10-15 | ET GATHERING PROCESSING LLC / GREENFIELD COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2024-10-15 | ET GATHERING PROCESSING LLC / GREENFIELD COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2024-10-15 | TOM STACK LLC / COMMUNITY COMPRESSOR STATION | OMEGA, Blaine, OK | Pass | State |
| 2024-10-15 | ET GATHERING PROCESSING LLC / PUMBA COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2024-10-15 | TOM STACK LLC / ROGUE COMPRESSOR STATION | CONCHO, Canadian, OK | Pass | State |
| 2024-10-15 | TARGA PIPELINE MIDCONTINENT LLC / GRAHAM COMPRESSOR STATION | GRAHAM, Carter, OK | Pass | State |
| 2024-10-15 | TARGA PIPELINE MIDCONTINENT LLC / MATHEWS COMPRESSOR STATION | WILSON, Carter, OK | Pass | State |
| 2024-10-15 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2024-10-15 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2024-10-15 | CONTINENTAL RESOURCES / SILVER STRATTON 3 6 31 30XHW SILVER ST | BRADLEY, Grady, OK | Pass | State |
| 2024-10-15 | ET GATHERING PROCESSING LLC / NORTH RUSSELLVILLE COMPRESSOR STATION | QUINTON, Haskell, OK | Pass | State |
| 2024-10-15 | ET GATHERING PROCESSING LLC / NORTH RUSSELLVILLE COMPRESSOR STATION | QUINTON, Haskell, OK | Pass | State |
| 2024-10-15 | MARKWEST OKLAHOMA GAS CO LLC / LOYAL COMPRESSOR STATION | LOYAL, Kingfisher, OK | Pass | State |
| 2024-10-15 | MARKWEST OKLAHOMA GAS CO LLC / STANGL COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2024-10-15 | CHISHOLM OIL AND GAS OPERATING LLC / COLONEL COBB 18 08 26 1H | DOVER, Kingfisher, OK | Pass | State |
| 2024-10-15 | CHISHOLM OIL AND GAS OPERATING LLC / DOC HOLLIDAY 19 07 01 2MH | HENNESSEY, Kingfisher, OK | Pass | State |
| 2024-10-15 | CONTINENTAL RESOURCES / SYMPSON 4 7H 5 7 6XH 14 15 7 6 31XHS | PURDY, Stephens, OK | Pass | State |
| 2024-10-15 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2024-10-15 | SUNOCO MIDSTREAM LLC/MECHANICSBURG | MECHANICSBURG, Cumberland, PA | Pass | State |
| 2024-10-15 | PIONEER CROSSING ENERGY LLC/EXETER | BIRDSBORO, Berks, PA | Pass | State |
| 2024-10-15 | RAG APPLE LLC PAD 1 — high-priority violation on file | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-10-15 | JHHC PAD 1 — high-priority violation on file | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC | FAIRFAX, Allendale, SC | Fail | State |
| 2024-10-15 | WBI ENERGY TRANSMISSION, INC | BELLE FOURCHE, Butte, SD | Pass | State |
| 2024-10-15 | AIR PRODUCTS PORT ARTHUR PLANT — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-15 | TEAL-JONES PINE PRODUCTS, INC. | MARTINSVILLE, Henry, VA | Pass | State |
| 2024-10-15 | ACE ETHANOL, LLC | STANLEY, Chippewa, WI | Pass | State |
| 2024-10-15 | COATING PLACE LLC — high-priority violation on file | VERONA, Dane, WI | Pass | State |
| 2024-10-15 | ARDAGH GLASS INC — high-priority violation on file | BURLINGTON, Richland, WI | Pass | State |
| 2024-10-15 | WVA MANUFACTURING, LLC, ALLOY — high-priority violation on file | ALLOY, Fayette, WV | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | CASPER COMPRESSOR STATION (TALLGRASS INTERSTATE GAS TRANSMISSION) | NATRONA COUNTY, Natrona, WY | Pass | State |
| 2024-10-15 | PARADISE COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-10-15 | PARADISE COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-10-15 | PARADISE COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-10-15 | PARADISE COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-10-14 | WARRIOR MET COAL GAS, LLC | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2024-10-14 | WARRIOR MET COAL GAS, LLC | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2024-10-14 | DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-2 | CLEVELAND, Conway, AR | Pass | State |
| 2024-10-14 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2024-10-14 | GREEN CITY CABINETS | ODON, Daviess, IN | Pass | State |
| 2024-10-14 | GREEN CITY CABINETS | ODON, Daviess, IN | Pass | State |
| 2024-10-14 | GREEN CITY CABINETS | ODON, Daviess, IN | Pass | State |
| 2024-10-14 | CENTURY ALUMINUM SEBREE LLC | ROBARDS, Henderson, KY | Pending | State |
| 2024-10-14 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-14 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-14 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-14 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-14 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-14 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-14 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-14 | GHOST COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-10-14 | GHOST COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-10-14 | RAGIN CAJUN 12 CTB 2 | JAL, Lea, NM | Pass | State |
| 2024-10-14 | GOLD QUARRY OPERATIONS — high-priority violation on file | CARLIN, Eureka, NV | Pass | State |
| 2024-10-14 | INNOVATIVE DANC | RODMAN, Jefferson, NY | Pass | State |
| 2024-10-14 | TARGA PIPELINE MIDCONTINENT LLC / MATHEWS COMPRESSOR STATION | WILSON, Carter, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.