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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their 2024 stack tests. Nationwide, 39,252 stack tests were recorded in 2024.