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 |
|---|---|---|---|---|
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2024-09-05 | DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-09-05 | DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-09-05 | DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-09-05 | DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-09-05 | DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-09-05 | DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-09-05 | THE GARLAND COMPANY, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2024-09-05 | THE GARLAND COMPANY, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2024-09-05 | THE GARLAND COMPANY, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Fail | State |
| 2024-09-05 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-09-05 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-09-05 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-09-05 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-09-05 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-09-05 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-09-05 | ET GATHERING PROCESSING LLC / UDORA COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2024-09-05 | ONEOK FIELD SERVICES CO LLC / WARD COMPRESSOR STATION NORTHERN ROWS | GEARY, Canadian, OK | Pass | State |
| 2024-09-05 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2024-09-05 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2024-09-05 | TARGA PIPELINE MIDCONTINENT LLC / TIVIS COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2024-09-05 | BEAVER DAM ENERGY LLC/ELECTRIC GENERATING STATION | CANTON, Bradford, PA | Pass | State |
| 2024-09-05 | SHELL CHEM APPALACHIA/SHELL POLYMERS MONACA — high-priority violation on file | MONACA, Beaver, PA | Pass | State |
| 2024-09-05 | REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA | CANTON, Bradford, PA | Pass | State |
| 2024-09-05 | EM RESOURCES LLC/MONTOUR PLT | DANVILLE, Montour, PA | Pending | State |
| 2024-09-05 | BYLER QUARRIES LLC/FIDDLERS ELBOW QUARRY S | MIDDLETOWN, Dauphin, PA | Fail | State |
| 2024-09-05 | EXPAND OPER LLC/GU-N HEBDA VANDEMARK PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2024-09-05 | KEMET A YAGEO COMPANY | SIMPSONVILLE, Greenville, SC | Pass | State |
| 2024-09-05 | VULCAN CONSTRUCTION MATERIALS LLC GRAY COURT QUARRY | GRAY COURT, Laurens, SC | Pass | State |
| 2024-09-05 | PETE LIEN & SONS, INC. MAIN PLANT | RAPID CITY, Pennington, SD | Pending | State |
| 2024-09-05 | PETE LIEN & SONS, INC. MAIN PLANT | RAPID CITY, Pennington, SD | Pass | State |
| 2024-09-05 | ECO-ENERGY STONE MOUNTAIN, LLC DBA STONE MOUNTAIN PROCESSING INLET FEED | ROGERSVILLE, Hawkins, TN | Pass | State |
| 2024-09-05 | CENTRAL VALLEY WATER RECLAMATION | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2024-09-05 | YONDR DATA CENTER | ALDIE, Loudoun, VA | Pass | State |
| 2024-09-05 | PUGET SOUND ENERGY-FREDONIA | MOUNT VERNON, Skagit, WA | Pass | Local |
| 2024-09-05 | PHILLIPS 66 | FERNDALE, Whatcom, WA | Pass | Local |
| 2024-09-05 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLE | DALLAS, Marshall, WV | Pass | State |
| 2024-09-05 | MPM SILICONES, LLC, FRIENDLY | FRIENDLY, Tyler, WV | Pass | State |
| 2024-09-05 | ANTERO MIDSTREAM LLC, MIDDLEBOURNE III | WICK, Tyler, WV | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-05 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-09-04 | TESORO ALASKA COMPANY, LLC / KENAI REFINERY — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2024-09-04 | GEORGIA PACIFIC | PENNINGTON, Choctaw, AL | Pass | State |
| 2024-09-04 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | CALERA, Shelby, AL | Pass | State |
| 2024-09-04 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | CALERA, Shelby, AL | Pass | State |
| 2024-09-04 | LOMA LINDA UNIVERSITY | LOMA LINDA, San Bernardino, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-09-04 | TRC CYPRESS GROUP LLC | TAFT, Kern, CA | Pass | Local |
| 2024-09-04 | TRC CYPRESS GROUP LLC | TAFT, Kern, CA | Pass | Local |
| 2024-09-04 | TRC CYPRESS GROUP LLC | TAFT, Kern, CA | Pass | Local |
| 2024-09-04 | TRC CYPRESS GROUP LLC | TAFT, Kern, CA | Pass | Local |
| 2024-09-04 | TRC CYPRESS GROUP LLC | TAFT, Kern, CA | Pass | Local |
| 2024-09-04 | TRC CYPRESS GROUP LLC | TAFT, Kern, CA | Pass | Local |
| 2024-09-04 | TRC CYPRESS GROUP LLC | TAFT, Kern, CA | Pass | Local |
| 2024-09-04 | ARCOSA LIGHTWEIGHT, FRAZIER PARK (1603) — high-priority violation on file | FRAZIER PARK, Ventura, CA | Pass | Local |
| 2024-09-04 | AERA ENERGY LLC | VENTURA, Ventura, CA | Pass | Local |
| 2024-09-04 | CITY OF GAINESVILLE, GRU — high-priority violation on file | GAINESVILLE, Alachua, FL | Pass | State |
| 2024-09-04 | CITY OF GAINESVILLE, GRU — high-priority violation on file | GAINESVILLE, Alachua, FL | Pass | State |
| 2024-09-04 | KRATON CHEMICAL, LLC | PANAMA CITY, Bay, FL | Pass | State |
| 2024-09-04 | HILLSBOROUGH COUNTY SOLID WASTE MGT DEPT | LITHIA, Hillsborough, FL | Pass | State |
| 2024-09-04 | STATE CENTER MUNICIPAL ELECTRIC UTILITY | STATE CENTER, Marshall, IA | Pass | State |
| 2024-09-04 | STATE CENTER MUNICIPAL ELECTRIC UTILITY | STATE CENTER, Marshall, IA | Pass | State |
| 2024-09-04 | STATE CENTER MUNICIPAL ELECTRIC UTILITY | STATE CENTER, Marshall, IA | Pass | State |
| 2024-09-04 | CARGILL INC-EDDYVILLE | EDDYVILLE, Monroe, IA | Pass | State |
| 2024-09-04 | CF INDUSTRIES NITROGEN LLC - PORT NEAL NITROGEN COMPLEX — high-priority violation on file | SERGEANT BLUFF, Woodbury, IA | Pass | State |
| 2024-09-04 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-04 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Fail | State |
| 2024-09-04 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-04 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-04 | GREEN COW POWER LLC — high-priority violation on file | GOSHEN, Elkhart, IN | Pass | State |
| 2024-09-04 | GREEN COW POWER LLC — high-priority violation on file | GOSHEN, Elkhart, IN | Pass | State |
| 2024-09-04 | GREEN COW POWER LLC — high-priority violation on file | GOSHEN, Elkhart, IN | Pass | State |
| 2024-09-04 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2024-09-04 | REAL ALLOY RECYCLING LLC | MORGANTOWN, Butler, KY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.