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 |
|---|---|---|---|---|
| 2024-12-04 | WEST FRASER, INC. - ARMOUR LUMBER MILL | RIEGELWOOD, Columbus, NC | Pass | State |
| 2024-12-04 | OLYMPIC PRODUCTS, LLC | GREENSBORO, Guilford, NC | Pass | State |
| 2024-12-04 | INGREDION, INC. — high-priority violation on file | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2024-12-04 | SIOUXLAND ETHANOL LLC — high-priority violation on file | JACKSON, Dakota, NE | Pass | State |
| 2024-12-04 | ST. PAUL'S SCHOOL | CONCORD, Merrimack, NH | Pass | State |
| 2024-12-04 | BRONCO COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-12-04 | BRONCO COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-12-04 | BOROS WEST FACILITY — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2024-12-04 | ZIA HILLS CENTRAL FACILITY | MALAGA, Lea, NM | Pass | State |
| 2024-12-04 | SUPREME COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-04 | GORGON LGL STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-04 | GORGON LGL STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-04 | CRONUS COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-04 | CRONUS COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-04 | CRONUS COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-12-04 | NYC-DOC - RIKERS ISLAND | EAST ELMHURST, Bronx, NY | Pass | State |
| 2024-12-04 | AMRIZE RAVENA FACILITY | COEYMANS, Albany, NY | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2024-12-04 | ET GATHERING PROCESSING LLC / BURLINGTON COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2024-12-04 | ET GATHERING PROCESSING LLC / CARMEN COMPRESSOR STATION | CARMEN, Alfalfa, OK | Pass | State |
| 2024-12-04 | MARKWEST OKLAHOMA GAS CO LLC / THETA COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2024-12-04 | MARKWEST OKLAHOMA GAS CO LLC / THETA COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2024-12-04 | CONTINENTAL RESOURCES / COURBET 10 15 9XHW 16 15 9XHM | RATLIFF CITY, Carter, OK | Pass | State |
| 2024-12-04 | CONTINENTAL RESOURCES / COURBET 10 15 9XHW 16 15 9XHM | RATLIFF CITY, Carter, OK | Pass | State |
| 2024-12-04 | FW MIDCON I LLC / MITZI FW 0103 1H 2H 27X | RATLIFF CITY, Garvin, OK | Pass | State |
| 2024-12-04 | FW MIDCON I LLC / MITZI FW 0103 1H 2H 27X | RATLIFF CITY, Garvin, OK | Pass | State |
| 2024-12-04 | CONTINENTAL RESOURCES / RK MORRIS 4 20 17XHW | ALEX, Grady, OK | Pass | State |
| 2024-12-04 | BCE MACH LLC / CAMPBELL FARMS 35 2 8N 6W 2WHX 4WHX 5W | AMBER, Grady, OK | Pass | State |
| 2024-12-04 | ET GATHERING PROCESSING LLC / DIBBLE COMPRESSOR STATION | DIBBLE, McClain, OK | Pass | State |
| 2024-12-04 | ET GATHERING PROCESSING LLC / DIBBLE COMPRESSOR STATION | DIBBLE, McClain, OK | Pass | State |
| 2024-12-04 | ET GATHERING PROCESSING LLC / DIBBLE COMPRESSOR STATION | DIBBLE, McClain, OK | Pass | State |
| 2024-12-04 | ET GATHERING PROCESSING LLC / DIBBLE COMPRESSOR STATION | DIBBLE, McClain, OK | Pass | State |
| 2024-12-04 | UNITED REFINING CO/WARREN PLT | WARREN, Warren, PA | Pass | State |
| 2024-12-04 | EASTERN GAS TRANS & STORAGE/PUNXSUTAWNEY | PUNXSUTAWNEY, Jefferson, PA | Pass | State |
| 2024-12-04 | TEXAS EASTERN TRANS LP/PERULACK STA | EAST WATERFORD, Juniata, PA | Pass | State |
| 2024-12-04 | RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file | TREMONT, Schuylkill, PA | Pass | State |
| 2024-12-04 | REGENCY MARCELLUS GAS GATHERING LLC/ HIRKEY COMP STA | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2024-12-04 | UPPER MORELAND HATBORO JT SEW AUTH/WILLOW GROVE | WILLOW GROVE, Montgomery, PA | Pass | State |
| 2024-12-04 | NFG MIDSTREAM COVINGTON LLC/FULLER 826N WELL PAD | MIDDLEBURY, Tioga, PA | Pass | State |
| 2024-12-04 | NFG MIDSTREAM COVINGTON LLC/KINNAN 845 WELL PAD | MIDDLEBURY, Tioga, PA | Pass | State |
| 2024-12-04 | EXPAND OPERATING LLC/KAUFMANN WELL PAD | NEW ALBANY, Bradford, PA | Pass | State |
| 2024-12-04 | CROSS CONNECT SOLUTIONS | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-12-04 | CROSS CONNECT SOLUTIONS | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-12-04 | CROSS CONNECT SOLUTIONS | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-12-04 | TENNESSEE VALLEY AUTHORITY - GALLATIN FOSSIL PLANT | GALLATIN, Sumner, TN | Pass | State |
| 2024-12-04 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2024-12-04 | DOMINION - REMINGTON CT STATION | REMINGTON, Fauquier, VA | Pending | State |
| 2024-12-04 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-12-04 | GREEN BAY METRO SEWERAGE DIST | GREEN BAY, Brown, WI | Pass | State |
| 2024-12-04 | CERTAINTEED GYPSUM WEST VIRGINIA, INC., MOUNDSVILLE | PROCTOR, Marshall, WV | Pass | State |
| 2024-12-04 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2024-12-04 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-04 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-04 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-04 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-03 | EVERGREEN ENVIRONMENTAL PARTNERS, LLC | ATTALLA, Etowah, AL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.