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 |
|---|---|---|---|---|
| 2024-10-09 | BSMC LA 20-29 HC #1-ALT & 20-29-32 HC #3-ALT TANK BATTERY - CONVERSE FIELD | LOGANSPORT, De Soto, LA | Pass | State |
| 2024-10-09 | REWORLD HAVERHILL LLC F.K.A. COVANTA HAVERHILL INCORPORATED | HAVERHILL, TOWN OF, Essex, MA | Pass | State |
| 2024-10-09 | AVCARB MATERIAL SOLUTIONS | LOWELL, CITY OF, Middlesex, MA | Pass | State |
| 2024-10-09 | SPRAGUE OPERATING RESOURCES LLC | SEARSPORT, Waldo, ME | Pass | State |
| 2024-10-09 | WEST FRASER US EWP - BEMIDJI | SOLWAY, Beltrami, MN | Pass | State |
| 2024-10-09 | UNIVERSITY OF MN - TWIN CITIES | MINNEAPOLIS, Hennepin, MN | Pass | State |
| 2024-10-09 | ELANTAS PDG, INC. | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2024-10-09 | COLUMBIA GULF TRANSMISSION LLC, CORINTH COMPRESSOR STATION | CORINTH, Alcorn, MS | Pass | State |
| 2024-10-09 | COLUMBIA GULF TRANSMISSION LLC, CORINTH COMPRESSOR STATION | CORINTH, Alcorn, MS | Pass | State |
| 2024-10-09 | ANR PIPELINE COMPANY, GREENVILLE COMPRESSOR STATION | GREENVILLE, Washington, MS | Pass | State |
| 2024-10-09 | ANR PIPELINE COMPANY, GREENVILLE COMPRESSOR STATION | GREENVILLE, Washington, MS | Pass | State |
| 2024-10-09 | ANR PIPELINE COMPANY, GREENVILLE COMPRESSOR STATION | GREENVILLE, Washington, MS | Pass | State |
| 2024-10-09 | TOYOTA BATTERY MFG. INC. DBA TOYOTA BATTERY MANUFACTURING NC | LIBERTY, Randolph, NC | Pass | State |
| 2024-10-09 | RAVEN NORTHBROOK LLC | SPRINGFIELD, Sarpy, NE | Pass | State |
| 2024-10-09 | MOCKINGBIRD CENTRAL GATHERING FACILITY | MALAGA, Eddy, NM | Pass | State |
| 2024-10-09 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2024-10-09 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2024-10-09 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2024-10-09 | CASSIUS PAD W | LOVING, Eddy, NM | Pass | State |
| 2024-10-09 | FRAC CAT COMPRESSOR STATION | LOVING, Lea, NM | Pass | State |
| 2024-10-09 | FRAC CAT COMPRESSOR STATION | LOVING, Lea, NM | Pass | State |
| 2024-10-09 | SENECA ENERGY LFGTE FACILITY | SENECA FALLS, Seneca, NY | Pass | State |
| 2024-10-09 | TENNESSEE GAS PIPELINE CO COMPRESSOR STATION 229 | EDEN, Erie, NY | Pass | State |
| 2024-10-09 | THE LUBRIZOL CORPORATION | PAINESVILLE, Lake, OH | Pass | State |
| 2024-10-09 | THE LUBRIZOL CORPORATION | PAINESVILLE, Lake, OH | Pass | State |
| 2024-10-09 | THE LUBRIZOL CORPORATION | PAINESVILLE, Lake, OH | Pass | State |
| 2024-10-09 | THE LUBRIZOL CORPORATION | PAINESVILLE, Lake, OH | Pass | State |
| 2024-10-09 | THE LUBRIZOL CORPORATION | PAINESVILLE, Lake, OH | Pass | State |
| 2024-10-09 | THE LUBRIZOL CORPORATION | PAINESVILLE, Lake, OH | Pass | State |
| 2024-10-09 | ASCENT RESOURCES - UTICA LLC - SMITHFIELD WELL PAD | ADENA, Jefferson, OH | Pass | State |
| 2024-10-09 | ASCENT RESOURCES - UTICA LLC - SMITHFIELD WELL PAD | ADENA, Jefferson, OH | Pass | State |
| 2024-10-09 | ASCENT RESOURCES - UTICA LLC - SMITHFIELD WELL PAD | ADENA, Jefferson, OH | Pass | State |
| 2024-10-09 | ASCENT RESOURCES - UTICA LLC - NOLAN CRC JF | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2024-10-09 | ASCENT RESOURCES - UTICA LLC - NOLAN CRC JF | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2024-10-09 | ASCENT RESOURCES - UTICA LLC - NOLAN CRC JF | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2024-10-09 | RICHARD STALDER PAD 952766 | SARDIS, Monroe, OH | Pass | State |
| 2024-10-09 | RICHARD STALDER PAD 952766 | SARDIS, Monroe, OH | Pass | State |
| 2024-10-09 | RICHARD STALDER PAD 952766 | SARDIS, Monroe, OH | Pass | State |
| 2024-10-09 | RIGGENBACH PAD 952771 | SARDIS, Monroe, OH | Pass | State |
| 2024-10-09 | RIGGENBACH PAD 952771 | SARDIS, Monroe, OH | Pass | State |
| 2024-10-09 | RIGGENBACH PAD 952771 | SARDIS, Monroe, OH | Pass | State |
| 2024-10-09 | ENLINK MIDSTREAM SERVICES LLC / SILVER COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2024-10-09 | MARKWEST OKLAHOMA GAS CO LLC / OKARCHE COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2024-10-09 | ENLINK MIDSTREAM SERVICES LLC / SAPPHIRE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2024-10-09 | ET GATHERING PROCESSING LLC / BARNITZ COMPRESSOR STATION | BUTLER, Custer, OK | Pass | State |
| 2024-10-09 | ET GATHERING PROCESSING LLC / SCHROCK COMPRESSOR STATION | THOMAS, Custer, OK | Pass | State |
| 2024-10-09 | ET GATHERING PROCESSING LLC / FOSTER COMPRESSOR STATION | ELMORE CITY, Garvin, OK | Pass | State |
| 2024-10-09 | KINGFISHER CITY OF / KINGFISHER MUNICIPAL POWER PLANT | KINGFISHER, Kingfisher, OK | Pass | State |
| 2024-10-09 | EOG RESOURCES INC / WILSON CTB PRODUCTION FACILITY | BLANCHARD, McClain, OK | Pass | State |
| 2024-10-09 | FW MIDCON I LLC / WRIGHT 2H 3H 4X VIRGINIA 1H 4X | DUNCAN, Stephens, OK | Pass | State |
| 2024-10-09 | NFG MIDSTREAM CLERMONT LLC/RICH VALLEY COMP STA | EMPORIUM, Cameron, PA | Pass | State |
| 2024-10-09 | GCC DACOTAH — high-priority violation on file | RAPID CITY, Pennington, SD | Pass | State |
| 2024-10-09 | NOMAN M. COLE JR. WATER RECYCLING FACILITY | LORTON, Fairfax, VA | Pass | State |
| 2024-10-09 | VANTAGE DATA CENTERS VA2 LLC | STERLING, Loudoun, VA | Pass | State |
| 2024-10-09 | DOMINION - WARREN | FRONT ROYAL, Warren, VA | Pass | State |
| 2024-10-09 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2024-10-09 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2024-10-09 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2024-10-09 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2024-10-09 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2024-10-09 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2024-10-09 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2024-10-09 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2024-10-09 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2024-10-09 | BOEING COMMERCIAL AIRPLANE GROUP - EVERETT — high-priority violation on file | EVERETT, Snohomish, WA | Pass | Local |
| 2024-10-09 | BOEING COMMERCIAL AIRPLANE GROUP - EVERETT — high-priority violation on file | EVERETT, Snohomish, WA | Pass | Local |
| 2024-10-09 | BOEING COMMERCIAL AIRPLANE GROUP - EVERETT — high-priority violation on file | EVERETT, Snohomish, WA | Pass | Local |
| 2024-10-09 | BOEING COMMERCIAL AIRPLANE GROUP - EVERETT — high-priority violation on file | EVERETT, Snohomish, WA | Pass | Local |
| 2024-10-09 | ANTERO MIDSTREAM LLC, CASTLE PEAK STN | NEW MARTINSVILLE, Tyler, WV | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | ANTELOPE HILLS COMPRESSOR STATION (EOG RESOURCES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-09 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-10-09 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-10-09 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | EVANSVILLE, Natrona, WY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.