EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-09-21 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-21 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-21 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-21 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-21 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-20 | SOUTHERN NATURAL GAS | ELMORE, Elmore, AL | Pass | State |
| 2023-09-20 | SOUTHERN NATURAL GAS | ELMORE, Elmore, AL | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2023-09-20 | PHOENIX CEMENT | CLARKDALE, Yavapai, AZ | Pass | State |
| 2023-09-20 | SNOW SUMMIT LLC | BIG BEAR LAKE, San Bernardino, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-20 | MOLSON COORS USA - GOLDEN FACILITY | GOLDEN, Jefferson, CO | Pass | State |
| 2023-09-20 | REWORLD BRISTOL, INC. | BRISTOL, Hartford, CT | Pass | State |
| 2023-09-20 | REWORLD BRISTOL, INC. | BRISTOL, Hartford, CT | Pass | State |
| 2023-09-20 | FLORIDA POWER & LIGHT COMPANY | LYNN HAVEN, Bay, FL | Pass | State |
| 2023-09-20 | GENERAL ASPHALT OF LAKELAND, LLC | LAKELAND, Polk, FL | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-09-20 | SOUTHERN NATURAL GAS CO. — high-priority violation on file | WRENS, Jefferson, GA | Pass | State |
| 2023-09-20 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2023-09-20 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2023-09-20 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Fail | State |
| 2023-09-20 | CF INDUSTRIES NITROGEN LLC - PORT NEAL NITROGEN COMPLEX — high-priority violation on file | SERGEANT BLUFF, Woodbury, IA | Pass | State |
| 2023-09-20 | IDAHO POWER CO - EVANDER ANDREWS COMPLEX | MOUNTAIN HOME, Elmore, ID | Pass | State |
| 2023-09-20 | LUTHERAN GENERAL HOSPITAL | PARK RIDGE, Cook, IL | Pass | State |
| 2023-09-20 | COUNTRYSIDE LANDFILL INC | GRAYSLAKE, Lake, IL | Pass | State |
| 2023-09-20 | GRANITE CITY WORKS OF UNITED STATES STEEL CORP — high-priority violation on file | GRANITE CITY, Madison, IL | Pass | State |
| 2023-09-20 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2023-09-20 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-09-20 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-09-20 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-09-20 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-09-20 | THE KROGER COMPANY - INDIANAPOLIS BAKERY | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-09-20 | PANHANDLE EASTERN PIPELINE COMPANY | MONTEZUMA, Parke, IN | Pass | State |
| 2023-09-20 | KIMBERLY-CLARK CORPORATION | OWENSBORO, Daviess, KY | Pass | State |
| 2023-09-20 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2023-09-20 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2023-09-20 | AMERICAN SYNTHETIC RUBBER COMPANY — high-priority violation on file | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2023-09-20 | ECO MAINE | PORTLAND, Cumberland, ME | Pass | State |
| 2023-09-20 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2023-09-20 | CARGILL INC — high-priority violation on file | BLAIR, Washington, NE | N/A | State |
| 2023-09-20 | RENEWABLE FUELS BY PETERSON LLC | HAVERHILL, Grafton, NH | Pass | State |
| 2023-09-20 | PECOS RIVER COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-09-20 | DAGGER LAKE NORTH TB | EUNICE, Lea, NM | Pass | State |
| 2023-09-20 | GAVILON TB | MONUMENT, Lea, NM | Pass | State |
| 2023-09-20 | TRACY GENERATING STATION | MCCARRAN, Storey, NV | Pass | State |
| 2023-09-20 | BISON BAG CO INC | LOCKPORT(T), Niagara, NY | Pass | State |
| 2023-09-20 | GFS CHEMICALS INC | COLUMBUS, Franklin, OH | Pass | State |
| 2023-09-20 | GFS CHEMICALS INC | COLUMBUS, Franklin, OH | Fail | State |
| 2023-09-20 | GFS CHEMICALS INC | COLUMBUS, Franklin, OH | Pass | State |
| 2023-09-20 | GFS CHEMICALS INC | COLUMBUS, Franklin, OH | Pass | State |
| 2023-09-20 | GFS CHEMICALS INC | COLUMBUS, Franklin, OH | Pass | State |
| 2023-09-20 | GFS CHEMICALS INC | COLUMBUS, Franklin, OH | Pass | State |
| 2023-09-20 | CLEAN ENERGY FUTURE - LORDSTOWN, LLC | LORDSTOWN, Trumbull, OH | Pass | State |
| 2023-09-20 | CLEAN ENERGY FUTURE - LORDSTOWN, LLC | LORDSTOWN, Trumbull, OH | Pass | State |
| 2023-09-20 | CLEAN ENERGY FUTURE - LORDSTOWN, LLC | LORDSTOWN, Trumbull, OH | Pass | State |
| 2023-09-20 | CLEAN ENERGY FUTURE - LORDSTOWN, LLC | LORDSTOWN, Trumbull, OH | Pass | State |
| 2023-09-20 | ASCENT RESOURCES - UTICA LLC - BAKOS CLR BI | COLERAIN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-20 | ASCENT RESOURCES - UTICA LLC - BAKOS CLR BI | COLERAIN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-20 | ASCENT RESOURCES - UTICA LLC - BAKOS CLR BI | COLERAIN, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-20 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | ADENA, Jefferson, OH | Pass | State |
| 2023-09-20 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | ADENA, Jefferson, OH | Pass | State |
| 2023-09-20 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | ADENA, Jefferson, OH | Pass | State |
| 2023-09-20 | MARKWEST OKLAHOMA GAS CO LLC / THETA COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2023-09-20 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2023-09-20 | XTO ENERGY INC / WASHITA COMPRESSOR STATION | ARDMORE, Carter, OK | Pass | State |
| 2023-09-20 | BCE MACH III LLC / ACES HIGH 1606 5 11MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-09-20 | BCE MACH LLC / TENA 5 27 16 1H STA | ALVA, Woods, OK | Pass | State |
| 2023-09-20 | TENNESSEE GAS PIPELINE CO/319 WYALUSING | WYALUSING, Bradford, PA | Pass | State |
| 2023-09-20 | APPALACHIA MIDSTREAM SVC LLC/GRANVILLE STA 2 | GRANVILLE SUMMIT, Bradford, PA | Pass | State |
| 2023-09-20 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2023-09-20 | WILLIAMS FIELD SVC CO LLC/SHASKAS COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2023-09-20 | DIVERSIFIED PROD LLC/NINEVEH 58 WELL PAD — high-priority violation on file | PROSPERITY, Washington, PA | Pass | State |
| 2023-09-20 | DIVERSIFIED PROD LLC/NV 60 WELLPAD | CLAYSVILLE, Washington, PA | Pass | State |
| 2023-09-20 | SYNTHOMER JEFFERSON HILLS LLC | WEST ELIZABETH, Allegheny, PA | Pass | Local |
| 2023-09-20 | BOSTON SCIENTIFIC CORPORATION — high-priority violation on file | COVENTRY, Kent, RI | Pass | State |
| 2023-09-20 | TWIN CHIMNEYS POWER PRODUCERS LLC | HONEA PATH, Greenville, SC | Pass | State |
| 2023-09-20 | WATEREE STATION | EASTOVER, Richland, SC | Pass | State |
| 2023-09-20 | BASIN ELECTRIC POWER COOPERATIVE GROTON GENERATING | GROTON, Brown, SD | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.