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 |
|---|---|---|---|---|
| 2024-09-06 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Fail | State |
| 2024-09-06 | INTERFLEX GROUP - CAROLINA PLANT | WILKESBORO, Wilkes, NC | Pass | State |
| 2024-09-06 | CARGILL INC — high-priority violation on file | BLAIR, Washington, NE | Pass | State |
| 2024-09-06 | RIPPLE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-06 | RIPPLE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-06 | RIPPLE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-06 | RIPPLE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-06 | RIPPLE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-06 | THISTLE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-09-06 | EIDER COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-09-06 | PPG INDUSTRIES - ERU | CIRCLEVILLE, Pickaway, OH | Pass | State |
| 2024-09-06 | OXBOW CREEK ENERGY LLC/ FACTORYVILLE | FACTORYVILLE, Wyoming, PA | Fail | State |
| 2024-09-06 | HOEGANAES CORPORATION | GALLATIN, Sumner, TN | Pass | State |
| 2024-09-06 | CENTRAL VALLEY WATER RECLAMATION | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2024-09-06 | MUDDY CREEK STATION (KERN RIVER GAS TRANS) | LINCOLN COUNTY, Lincoln, WY | Pass | State |
| 2024-09-06 | MUDDY CREEK STATION (KERN RIVER GAS TRANS) | LINCOLN COUNTY, Lincoln, WY | Pass | State |
| 2024-09-05 | GEORGIA PACIFIC | PENNINGTON, Choctaw, AL | Pass | State |
| 2024-09-05 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2024-09-05 | EMERY SAPP AND SONS - FORT SMITH PLANT | FORT SMITH, Sebastian, AR | Pass | State |
| 2024-09-05 | EMERY SAPP AND SONS - FORT SMITH PLANT | FORT SMITH, Sebastian, AR | Pass | State |
| 2024-09-05 | EQUILON ENTER. LLC, SHELL OIL PROD. US | CARSON, Los Angeles, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | LOS GATOS TOMATO PRODUCTS | HURON, Fresno, CA | Pass | Local |
| 2024-09-05 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-09-05 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-09-05 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-09-05 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-09-05 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2024-09-05 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2024-09-05 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2024-09-05 | GA POWER CO. - PLANT BOWEN | CARTERSVILLE, Bartow, GA | Pass | State |
| 2024-09-05 | SONOCO PRODUCTS - TEMPLE | TEMPLE, Carroll, GA | Pass | State |
| 2024-09-05 | MCINTOSH COMBUSTION TURBINE - ELECTRIC GENERATING PLANT | RINCON, Effingham, GA | Pass | State |
| 2024-09-05 | MCINTOSH COMBUSTION TURBINE - ELECTRIC GENERATING PLANT | RINCON, Effingham, GA | Pass | State |
| 2024-09-05 | MCINTOSH COMBUSTION TURBINE - ELECTRIC GENERATING PLANT | RINCON, Effingham, GA | Pass | State |
| 2024-09-05 | MCINTOSH COMBUSTION TURBINE - ELECTRIC GENERATING PLANT | RINCON, Effingham, GA | Pass | State |
| 2024-09-05 | HELCO - OULI | SOUTH KOHALA, Hawaii, HI | Pass | State |
| 2024-09-05 | INDUSTRIAL ENERGY APPLICATIONS, INC-INDUSTRIAL LAMINATES/NORPLEX | POSTVILLE, Allamakee, IA | Pass | State |
| 2024-09-05 | STATE CENTER MUNICIPAL ELECTRIC UTILITY | STATE CENTER, Marshall, IA | Pass | State |
| 2024-09-05 | STATE CENTER MUNICIPAL ELECTRIC UTILITY | STATE CENTER, Marshall, IA | Pass | State |
| 2024-09-05 | CARGILL INC-EDDYVILLE | EDDYVILLE, Monroe, IA | Pass | State |
| 2024-09-05 | RIVERSTONE GROUP, INC - BETTENDORF | BETTENDORF, Scott, IA | Pass | State |
| 2024-09-05 | U S GYPSUM CO-FORT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2024-09-05 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-05 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-05 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-05 | GOLD'N PLUMP FARMS LLC - SAUK RAPIDS FEED MILL | SAUK RAPIDS, Benton, MN | Pass | State |
| 2024-09-05 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2024-09-05 | BUSHMILLS ETHANOL INC | ATWATER, Kandiyohi, MN | Pass | State |
| 2024-09-05 | WEYERHAEUSER-EVERGREEN — high-priority violation on file | KALISPELL, Flathead, MT | Pass | State |
| 2024-09-05 | WEYERHAEUSER-EVERGREEN — high-priority violation on file | KALISPELL, Flathead, MT | Pass | State |
| 2024-09-05 | WEYERHAEUSER-EVERGREEN — high-priority violation on file | KALISPELL, Flathead, MT | Pass | State |
| 2024-09-05 | GCF US HOLDINGS LLC - NEW BERN MILL | VANCEBORO, Craven, NC | Pass | State |
| 2024-09-05 | PILKINGTON NORTH AMERICA, INC. — high-priority violation on file | LAURINBURG, Scotland, NC | Pending | State |
| 2024-09-05 | NOVANT HEALTH PRESBYTERIAN MEDICAL CENTER, INC. | CHARLOTTE, Mecklenburg, NC | Pass | Local |
| 2024-09-05 | CHIEF ETHANOL FUELS INC | HASTINGS, Adams, NE | Pass | State |
| 2024-09-05 | BD PHARMACEUTICAL SYSTEMS | COLUMBUS, Platte, NE | N/A | State |
| 2024-09-05 | BD PHARMACEUTICAL SYSTEMS | COLUMBUS, Platte, NE | Pass | State |
| 2024-09-05 | SALT DRAW COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2024-09-05 | CORRAL 2N COMPRESSOR | MALAGA, Eddy, NM | Pass | State |
| 2024-09-05 | CORRAL 2N COMPRESSOR | MALAGA, Eddy, NM | Pass | State |
| 2024-09-05 | CORRAL 2N COMPRESSOR | MALAGA, Eddy, NM | Pass | State |
| 2024-09-05 | RIPPLE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-05 | RIPPLE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-05 | TOUGH OMBRES 4 5 BATTERY | CARLSBAD, Eddy, NM | Pass | State |
| 2024-09-05 | BLACK HAWK/BLACK CAT 16 STATE COM CTB | ATOKA, Eddy, NM | Pass | State |
| 2024-09-05 | REVERE COPPER PRODUCTS INC | ROME, Oneida, NY | Fail | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2024-09-05 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, 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 |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.