EPA Air · stack tests by year
Air-emissions stack tests in 2021
- 35,950Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2021
- California 17,676
- Ohio 2,582
- Florida 1,540
- Indiana 1,495
- Oklahoma 1,318
- Georgia 1,189
- New Mexico 841
- Pennsylvania 788
- Alabama 621
- Mississippi 589
- Texas 574
- Arkansas 518
- Missouri 515
- Colorado 407
- Iowa 368
- Washington 334
- North Carolina 273
- Michigan 256
- Wisconsin 239
- Wyoming 235
- West Virginia 225
- Kentucky 222
- Delaware 222
- Montana 220
- South Carolina 217
- Minnesota 209
- Kansas 177
- Alaska 143
- Illinois 142
- Utah 140
- Nevada 136
- Virginia 131
- Nebraska 117
- Maine 110
- New Jersey 110
- New York 103
- Connecticut 99
- Tennessee 98
- North Dakota 93
- Arizona 93
- Idaho 90
- Louisiana 69
- Hawaii 64
- Maryland 56
- South Dakota 55
- District of Columbia 54
- New Hampshire 53
- Oregon 45
- Rhode Island 34
- Massachusetts 29
- Puerto Rico 19
- Vermont 17
Other years
Air-emissions stack tests recorded in 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | CHALK CLIFF LIMITED | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-02 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2021-11-02 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | N/A | State |
| 2021-11-02 | SOUTHERN STAR CENTRAL GAS PIPELINE -YUMA | YUMA 5.9 MI. N OF, Yuma, CO | N/A | State |
| 2021-11-02 | SOUTHERN STAR CENTRAL GAS PIPELINE -YUMA | YUMA 5.9 MI. N OF, Yuma, CO | Pass | State |
| 2021-11-02 | INV PERFORMANCE MATERIALS, LLC | SEAFORD, Sussex, DE | Pass | State |
| 2021-11-02 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2021-11-02 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2021-11-02 | GA POWER CO. PLANT YATES | NEWNAN, Coweta, GA | Pass | State |
| 2021-11-02 | GA POWER CO. PLANT YATES | NEWNAN, Coweta, GA | Pass | State |
| 2021-11-02 | INTERSTATE PAPER LLC DBA DSSMITH RICEBORO — high-priority violation on file | RICEBORO, Liberty, GA | Pass | State |
| 2021-11-02 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-02 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-02 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-02 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2021-11-02 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2021-11-02 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2021-11-02 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2021-11-02 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2021-11-02 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2021-11-02 | BIG RIVER UNITED ENERGY LLC-DYERSVILLE | DYERSVILLE, Dubuque, IA | Pass | State |
| 2021-11-02 | STORY CITY MUNICIPAL ELECTRIC UTILITY | STORY CITY, Story, IA | Pass | State |
| 2021-11-02 | STORY CITY MUNICIPAL ELECTRIC UTILITY | STORY CITY, Story, IA | Pass | State |
| 2021-11-02 | QUAKER MANUFACTURING, LLC | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2021-11-02 | PRAIRIE STATE GENERATING STATION | MARISSA, Washington, IL | Pass | State |
| 2021-11-02 | PRAIRIE STATE GENERATING STATION | MARISSA, Washington, IL | Pass | State |
| 2021-11-02 | GUARDIAN PIPELINE CO | CHANNAHON, Will, IL | Pass | State |
| 2021-11-02 | BCI SOLUTIONS INCORPORATED | BREMEN, Marshall, IN | Pass | State |
| 2021-11-02 | BCI SOLUTIONS INCORPORATED | BREMEN, Marshall, IN | Pass | State |
| 2021-11-02 | BCI SOLUTIONS INCORPORATED | BREMEN, Marshall, IN | Pass | State |
| 2021-11-02 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-11-02 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-11-02 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-11-02 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-11-02 | MPLX TERMINALS, LLC - ALGONQUIN TERMINAL | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2021-11-02 | MILLERSVILLE LANDFILL GAS TO ELECTRICITY FACILITY | SEVERN, Anne Arundel, MD | Pass | State |
| 2021-11-02 | DOMINION TRANSMISSION, INC | MIDDLETOWN, Frederick, MD | Pass | State |
| 2021-11-02 | EXETER AGRI-ENERGY, LLC | EXETER, TOWN OF, Penobscot, ME | Pass | State |
| 2021-11-02 | EXETER AGRI-ENERGY, LLC | EXETER, TOWN OF, Penobscot, ME | Pass | State |
| 2021-11-02 | GM LLC SAGINAW METAL CASTING OPERATIONS | SAGINAW, Saginaw, MI | Fail | State |
| 2021-11-02 | GLWA WATER RESOURCE RECOVERY FACILITY | DETROIT, Wayne, MI | Pass | State |
| 2021-11-02 | SOUTH KENT LANDFILL — high-priority violation on file | BYRON CENTER, Kent, MI | Pass | State |
| 2021-11-02 | ADA COGENERATION LLC | ADA, Kent, MI | Pass | State |
| 2021-11-02 | UNIVERSAL COATING INC. | FLINT, Genesee, MI | Pass | State |
| 2021-11-02 | NORTHERN NATURAL GAS CO - CARLTON | CARLTON, Carlton, MN | Pass | State |
| 2021-11-02 | KERRY INC | ROCHESTER, Olmsted, MN | Pass | State |
| 2021-11-02 | CROWN CORK & SEAL | OWATONNA, Steele, MN | Pass | State |
| 2021-11-02 | FEDERAL-MOGUL POWERTRAIN LLC | LAKE CITY, Wabasha, MN | Pass | State |
| 2021-11-02 | LHOIST NORTH AMERICA | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2021-11-02 | LHOIST NORTH AMERICA | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2021-11-02 | UNIVERSITY OF MISSISSIPPI, THE | UNIVERSITY, Lafayette, MS | Pass | State |
| 2021-11-02 | UNIVERSITY OF MISSISSIPPI, THE | UNIVERSITY, Lafayette, MS | Pass | State |
| 2021-11-02 | UNIVERSITY OF MISSISSIPPI, THE | UNIVERSITY, Lafayette, MS | Pass | State |
| 2021-11-02 | UNIVERSITY OF MISSISSIPPI, THE | UNIVERSITY, Lafayette, MS | Pass | State |
| 2021-11-02 | UNIVERSITY OF MISSISSIPPI, THE | UNIVERSITY, Lafayette, MS | Pass | State |
| 2021-11-02 | CAROLINA TREE AND LANDSCAPING | SUPPLY, Brunswick, NC | Pending | State |
| 2021-11-02 | PREGIS INNOVATIVE PACKAGING INC. | GRANITE FALLS, Caldwell, NC | Pass | State |
| 2021-11-02 | DECORE-ATIVE SPECIALTIES, INC. | MONROE, Union, NC | Pass | State |
| 2021-11-02 | BLYTHE BROTHERS ASPHALT COMPANY, LLC | CHARLOTTE, Mecklenburg, NC | Fail | Local |
| 2021-11-02 | MINN-DAK FARMERS COOPERATIVE (MDFC) - WAHPETON PLANT - AQ | WAHPETON, Richland, ND | Pass | State |
| 2021-11-02 | VALERO RENEWABLE FUELS COMPANY — high-priority violation on file | ALBION, Boone, NE | Pass | State |
| 2021-11-02 | LEATHERNECK SOUTH TB | CARLSBAD, Eddy, NM | Pass | State |
| 2021-11-02 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | ENERGY TRANSFER COMPANY - DOMINATOR COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | ENERGY TRANSFER COMPANY - DOMINATOR COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | ENERGY TRANSFER COMPANY - DOMINATOR COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-02 | AVERY DENNISON PFF, BLDG 3 | PAINESVILLE, Lake, OH | Pass | State |
| 2021-11-02 | AVERY DENNISON PFF, BLDG 3 | PAINESVILLE, Lake, OH | Pass | State |
| 2021-11-02 | AVERY DENNISON PFF, BLDG 3 | PAINESVILLE, Lake, OH | Pass | State |
| 2021-11-02 | JOHNS MANVILLE | DEFIANCE, Defiance, OH | Pass | State |
| 2021-11-02 | JOHNS MANVILLE | DEFIANCE, Defiance, OH | Pass | State |
| 2021-11-02 | MAHLE THERMAL AND FLUID SYSTEMS DAYTON LLC | DAYTON, Montgomery, OH | Pass | State |
| 2021-11-02 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2021-11-02 | ONEOK FIELD SERVICES CO LLC / MAST EAST FOSS COMPRESSOR STATION | WEATHERFORD, Custer, OK | Pass | State |
| 2021-11-02 | OG AND E / MUSKOGEE GENERATING STATION — high-priority violation on file | FORT GIBSON, Muskogee, OK | Pass | State |
| 2021-11-02 | OG AND E / MUSKOGEE GENERATING STATION — high-priority violation on file | FORT GIBSON, Muskogee, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.