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 |
|---|---|---|---|---|
| 2024-11-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-20 | FLETCHER PETROLEUM CORPORATION | BROOKLYN, Conecuh, AL | Pass | State |
| 2024-11-20 | CLEARWATER PAPER CORPORATION (CYPRESS BEND) | ARKANSAS CITY, Desha, AR | Pass | State |
| 2024-11-20 | CLEARWATER PAPER CORPORATION (CYPRESS BEND) | ARKANSAS CITY, Desha, AR | Pass | State |
| 2024-11-20 | CLEARWATER PAPER CORPORATION (CYPRESS BEND) | ARKANSAS CITY, Desha, AR | Pass | State |
| 2024-11-20 | CLEARWATER PAPER CORPORATION (CYPRESS BEND) | ARKANSAS CITY, Desha, AR | Pass | State |
| 2024-11-20 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-1 | QUITMAN, Faulkner, AR | Pass | State |
| 2024-11-20 | DESOTO GATHERING COMPANY, LLC - TIGER CPF 2 | JUDSONIA, White, AR | Pass | State |
| 2024-11-20 | ME GLOBAL | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2024-11-20 | ULTRAMAR INC | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FRESNO COGEN PARTNERS | SAN JOAQUIN, Fresno, CA | Pass | Local |
| 2024-11-20 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2024-11-20 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2024-11-20 | DELICATO VINEYARDS | MANTECA, San Joaquin, CA | Pass | Local |
| 2024-11-20 | DELICATO VINEYARDS | MANTECA, San Joaquin, CA | Pass | Local |
| 2024-11-20 | DELICATO VINEYARDS | MANTECA, San Joaquin, CA | Pass | Local |
| 2024-11-20 | DELICATO VINEYARDS | MANTECA, San Joaquin, CA | Pass | Local |
| 2024-11-20 | DELICATO VINEYARDS | MANTECA, San Joaquin, CA | Pass | Local |
| 2024-11-20 | DELICATO VINEYARDS | MANTECA, San Joaquin, CA | Pass | Local |
| 2024-11-20 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2024-11-20 | GALLAUDET UNIVERSITY — high-priority violation on file | WASHINGTON, District of Columbia, DC | Fail | State |
| 2024-11-20 | GALLAUDET UNIVERSITY — high-priority violation on file | WASHINGTON, District of Columbia, DC | Fail | State |
| 2024-11-20 | U.S. GSA CENTRAL HEATING PLANT — high-priority violation on file | WASHINGTON, District of Columbia, DC | Pass | State |
| 2024-11-20 | FLORIDA POWER & LIGHT COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-11-20 | FLORIDA POWER & LIGHT COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-11-20 | FLORIDA POWER & LIGHT COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-11-20 | ARCH WOOD PROTECTION, INC. — high-priority violation on file | CONLEY, DeKalb, GA | Pass | State |
| 2024-11-20 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2024-11-20 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2024-11-20 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2024-11-20 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2024-11-20 | HAMAKUA ENERGY | HONOKAA, Hawaii, HI | Pass | State |
| 2024-11-20 | ILC RESOURCES/IOWA LIMESTONE CO-PLTS 1&3 | ALDEN, Hardin, IA | Pass | State |
| 2024-11-20 | PLYMOUTH ENERGY LLC | MERRILL, Plymouth, IA | Pass | State |
| 2024-11-20 | U S GYPSUM CO-FORT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2024-11-20 | METRO METHANE RECOVERY | MITCHELLVILLE, Polk, IA | Pass | Local |
| 2024-11-20 | CITY WATER LIGHT & POWER | SPRINGFIELD, Sangamon, IL | Pass | State |
| 2024-11-20 | GEORGIA PACIFIC GYPSUM LLC — high-priority violation on file | WHEATFIELD, Jasper, IN | Pass | State |
| 2024-11-20 | CWA AUTHORITY INC BELMONT ADV WASTEWATER TREATMENT PLANT | INDIANAPOLIS, Marion, IN | Pass | State |
| 2024-11-20 | BAVARIAN TRUCKING COMPANY INC | WALTON, Boone, KY | Pass | State |
| 2024-11-20 | GREEN VALLEY LANDFILL GENERAL PARTNERSHIP | ARGILLITE, Greenup, KY | Pass | State |
| 2024-11-20 | PETRO HUNT 33 HZ #1 #2-ALT & #3-ALT TANK BATTERY - BENSON FIELD | PELICAN, De Soto, LA | Pass | State |
| 2024-11-20 | PETRO HUNT 33 HZ #1 #2-ALT & #3-ALT TANK BATTERY - BENSON FIELD | PELICAN, De Soto, LA | Pass | State |
| 2024-11-20 | VALERO REFINING - NEW ORLEANS LLC - ST CHARLES REFINERY | NORCO, St. Charles, LA | Pass | State |
| 2024-11-20 | GUARDIAN ENERGY LLC | JANESVILLE, Waseca, MN | Pass | State |
| 2024-11-20 | COLUMBIA GULF TRANSMISSION LLC, HOLCOMB COMPRESSOR STATION | HOLCOMB, Grenada, MS | Pass | State |
| 2024-11-20 | COLUMBIA GULF TRANSMISSION LLC, HOLCOMB COMPRESSOR STATION | HOLCOMB, Grenada, MS | Pass | State |
| 2024-11-20 | COLUMBIA GULF TRANSMISSION LLC, HOLCOMB COMPRESSOR STATION | HOLCOMB, Grenada, MS | Pass | State |
| 2024-11-20 | W.E. PARTNERS I, LLC - COFIELD | COFIELD, Hertford, NC | Pass | State |
| 2024-11-20 | ONEOK ROCKIES MIDSTREAM, L.L.C. - TREE TOP COMPRESSOR STATION | MEDORA, Billings, ND | Pass | State |
| 2024-11-20 | ADM CORN PROCESSING — high-priority violation on file | COLUMBUS, Platte, NE | Pass | State |
| 2024-11-20 | RED HILLS COMPRESSOR STATION | BENNETT, Lea, NM | Pass | State |
| 2024-11-20 | LEA COMPRESSOR STATION | MONUMENT, Lea, NM | Pass | State |
| 2024-11-20 | MERCHANT COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-11-20 | GOLDSTRIKE MINE | CARLIN, Eureka, NV | Pass | State |
| 2024-11-20 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2024-11-20 | APEX REGIONAL LANDFILL — high-priority violation on file | LAS VEGAS, Clark, NV | Pass | Local |
| 2024-11-20 | ASCENT RESOURCES - UTICA LLC - ROCK RIDGE WRN BL | BARNESVILLE, Belmont, OH | Pass | State |
| 2024-11-20 | ASCENT RESOURCES - UTICA LLC - ROCK RIDGE WRN BL | BARNESVILLE, Belmont, OH | Pass | State |
| 2024-11-20 | ASCENT RESOURCES - UTICA LLC - ROCK RIDGE WRN BL | BARNESVILLE, Belmont, OH | Pass | State |
| 2024-11-20 | TAIT ELECTRIC GENERATING STATION | DAYTON, Montgomery, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.