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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their 2024 stack tests. Nationwide, 39,252 stack tests were recorded in 2024.